Some standard content:
ICS 75.180.10
Registration No.: 1440-1998
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T 5022-1998
Tapered thread and plain gages and straight thrcadgages for the slush pump
Published on 1998 - 04 26
China National Petroleum Corporation
Implemented on 1998 — 08 - 01
SY/T 5022-1998
This standard is compiled based on the American Petroleum Institute standard APSpec7K "Drilling Equipment Specification" No. 2 "Gauges and Measurement Methods for Threaded Connections of Mud Pump Parts", and its content requirements are completely consistent with APISp7K. By adopting the standards of relevant scientific and technological associations, the oil-free drilling pump, an important equipment for oil and gas production in my country, can be aligned with international standards to meet the needs of international construction, technical and economic exchanges and cooperation with international standards. When revising the original standard SY5022-B0 of the Ministry of Petroleum Industry according to the content of Chapter 2 of APSpec7K "Station Equipment Specification", the size of the thread gauge is supplemented according to the size of all connecting threads, the table of small deviations of the round thread basic gauge (Table 6) is added, and the error of the single gauge error in the original standard is corrected. This standard will replace SY5022-80 from the date of entry into force. Appendix A of this standard is a reminder appendix. This standard is proposed and managed by the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools. This standard is drafted by the Shishan Industrial Standardization Research Institute of the Petroleum Exploration and Development Research Institute, and the Lanzhou Petroleum Machinery Research Institute participated in the drafting. The drafters of this standard are Tu Minqian, Zhai Guoben, Quan Dexiang, and this standard was issued in January 1981.
1 Scope
Petroleum and Natural Gas Industry Standard of the People's Republic of China Tapered Thread Gauges for Drilling Pumps
SY/T 5022-1998
DESA SY 5022 80
Tapered thread and plain gages and straight thread gages for the slush This standard specifies the dimensions, tolerances, inspection methods and use of the thread gauges for the ten drilling pump heads, intermediate rods, live rods and locking nuts (hereinafter referred to as the gauges).
This standard is applicable to the inspection of tapered threads, cylindrical threads and round threads specified in SY/T5020-1997 "Tapered Threads for Drilling Pumps".
2 Referenced Standards
The following standards contain provisions that are incorporated herein by reference and constitute the provisions of this standard: At the time of publication of this standard, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. SY/T5020-997 Tapered Screw Threads for Aluminum Pumps 3 Definitions
This standard adopts the following definitions.
Tightening Close distance standofl
After the internal and external taper threads are screwed or matched according to the specified force or other conditions, the distance between the two fingers is measured.
4 Requirements
4.1 Specifications:
The manufacturer shall be equipped with working pad gauges for measuring product threads. All working base gauges shall be kept intact so that they can check the product threads according to the specified methods and accept them according to the requirements. 1 The recommended method for the storage and use of working gauges is shown in the appendix (recorded in the prompt). The working gauge should have the accuracy and structure that can ensure that the product threads meet the requirements. The relationship between the working gauge and the product thread is shown in the figure: According to the smoothness of the plug gauge, the matching close distance between the complex ring and the recognition ring is the most standard or slow deformation benchmark. When determining the tightness value H of the gauge, the deviation of the initial tightness S (P) should be taken into account. 4.2 Basic gauge size and tolerance: The size of thread gauges and smooth offset gauges is shown in Table 1 and Figure 2, Table 2 and Figure 3; Table 3 and Figure 4 and Figure 5. The size deviation of tapered thread gauges and smooth arm chain gauges is shown in Table 5: The size deviation of cylindrical thread gauges is shown in Table 6. 4.3 Pitch: The pitch of thread plug gauges and gauges should be measured along the entire thread length with the median diameter parallel to the thread axis, and The two bands are excluded from the whole teeth. The pitch deviation of any thread should not exceed the provisions of Table 5. 4.4 Taper and Cylindricity:
4.4.1 The taper of the round thread gauge is measured along the mid-diameter line on the entire thread length, and the whole teeth are removed at both ends. The internal deviation value on the actual measured length should be proportional to the taper deviation on the length in Table 1, and should comply with the provisions of Table 5. Approved by China National Petroleum Corporation on April 26, 1998 and implemented on August 1, 1998
S =0±0.05 (±0.002)
10.16 (0.400)
1.6 (1/16)
1.6【1/15】
Product internal thread
Committing crime
Product external thread
Product internal thread test
Product external thread
National thread measurement environment
SY/T S022-1998
-P-0±0.05
（±0.002）
—（1/16)
3=17.117+U05
(0.6739±0.K/2)
1 = 17.117 = 0.05
(0.6739 ±0.02)
[.6 [0.6739+1/16)
Product internal thread
Product external thread
P+1.6 (1/16)-
Product is thread
Product is external thread
Smooth dimension gauge
[Figure 1 Relationship between dimensional thread gauge and smooth chain gauge and product thread (unit: mmER
17.78 (0.700)
0.16 (0.400).
DR(Ir32)
10 16 ((1.40)
Round male explosion gauge
15.9(5/8)
(3/8--3/4)
According to the gauge size
17.112=0.05(0.673910.002)
Smooth taper gauge
Figure n proof of burning gauge and smooth pin measurement (unit: mr)—199
SY/I 5022-
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SY/T5022-1908
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6848'1-4)'T
tise nss 63
C arak
No. 069
Chain column
Chu plug gauge full practice type
Thread major diameter
$Y/T 5022—1998
Table 2 External Xia Gui snail working ring gauge and calibration cold gauge through frost! Parts gauge and setting for the current
Thread light
Calibration base soul
Nephew people's degree
24.77 (0.91)4.282 (.96)23287 (.918(）[27.R9 (10980)27.455 (1.0809) 26.459 (1.017 54.0(2 gauge length
23.8(/)
20.6(1)
mm(in)
ring gauge small diameter
[21.857 (0.8605)
25.0029 (0.9854)
28.204 (1.1104)
28.6 (1)
31.377 (1.2353)
60.3 (No. 2)
37.412 (1.4729)36.977 (1/4558) 35.982 (1.4166)34.552 (1.3603)
73.0 (No. 2)
40.587(1.5979)40.152(1.5808)39.157(:5416)31.80123
37.727 (1,4R53)
40.859(1.6102)
75.0 (2)
46.934 (1.8478) 46.500 (1.8307)45.504 (1.7915)
918193
44.(074 (1.7352)
47.249(1.8602)
34.0 (No. 1)
56.457 (2.2227)56.022 (2.2056)$5.027 (2.1661)53.597 (2.1101)
59.47(2,36
4722027055724266389
66.294 (2.6100)
44()
75.512 (2.9725)
75.167 (2.9554)/74.071 (2.9162)72.641 (2.8599)
47.6 (number)
81.852 (3.2225)|81.417 (3.2054) 80.421 (3.1662)101.6 (4)
) 78.991 (3.1099)
88.202 (3.4725)|87.767(3.4554)86771(3:4162)105-0 (4)50.8 (2)
00.599(3.9724j100.465(3.9553)99,459(3.9161)108.0(4-1
13.596 (4.4723)13.162 (4.4552)12.16 (4.415n)0(4126.294 (4.97223)125.860 (4.95513)124. 04 (4.9159) 118.0) (-)38991 (5.4721)[38557 (5.4550)137.561 (5.4158) 108.0(4)[151.691 (5.9721)151.257 (5.9550)150).261 (5.91583) L08.0 (4 -End ring gauge and width gauge
Nominal calibration plug current rough thread type
Screw diameter
23.828 (0.9381)
26.998 (1.0629)
23.114 (0.9100)
26.284 (1.0348)
Calibration gauge
Thread length
Ring gauge length
85.321 (3.3599]
198.n39 (3.8598)
110.736 (4.3597)
123.434 14.5596)
136.131 (5.3595)
148.831 (5.8595)
Ring jump diameter
22.400 (0.8819)
25.570 (1.0067)
Chain + male standard cutting tooth center
Thread guide is small
Thread mandrel
30.170 (1.1878)
33.318 (:.3[25)
36.510 (:.1374)
34.682 (:.5623)
13.832 51.6871
10.032 (1.8119)
49.135 (1.9368)
59.51: (2 18693
61.42 (2 4363)
G8.207 (2 h61)
74.565 (2.9358)
30.914 (3.1456)
87.262 (3.4335)
99,953 (3.9351)
112.611 (4.13-7)
SY/T 5022-1998
Table 2 (Complete)
Positive end workmanship and proofreading rules
Width rule
Thread length
29.456 (1.1597)
32.624 (1.2844)
35.796 (1.4093)
38.969 (1.5342)
12.139 (1.6590)
15.314 (1:7838)
48.481 (1.9087)
54.X23 (2.1584)
61.168 (2.4(182)
67.513 (2.6580)
73.856 (2.9077)
80.20) (3.1575)
86.54R (3.4074)
99.238 (3.9070)
111.928 (4.4066)
125.331 (1.63:3)
1 124.617 11.9062)
138.021 (5.4210)
150.716 (5.9337)
137,310 15.4059)1
150.G02 (5.9050)
413(%)
1.3 ()
17.6 (No. 1)
47.6 (No. 1)
sn1.8 (2)
51.0 (2 -
54,0 (2
1 The thread effect is 3175mm (8 teeth/in. Pitch-0.1250in): 2 each 3.
Ring gauge length
19.0 (No.)
19.0 (No.)
23.8 (1)
Flat gauge small bolt
28.743 (1.1316)
31-910 (1.2563)
35.082 (1.3812)
38,255 (1.5061)
41.125 (1.6309)
14.595 (1.7557)
47.767 (1.8806)
54.1F) (2.1303)
60.455 (2.3801)
66.799 (2.t299)
73.142 (2.8796)
79.437 (3.1294)
85.834 (3.3703)
98.521 (3.8789)
111.214 (4.3785)
123.901 (4.8781)
136.596 (5.3778)
149.288 (5.8775)
1] Amine A4MF, calculated by .1--[98ANSI R1.1--[982 revised version] "Tong--Screw Efficiency" and 4>SI H1,2-1983, through end gauge diameter, F gauge diameter 15).254mr (5.5157im) i 148.829nm (5.8594ir); stop end gauge diameter is 151.000mm (.9055m) cone row
written Han major diameter
SV/T 5022-1998
Note: Figure, identification proofreading case specification full Huang Shao division
Figure 3 through end and stop end cylindrical thread gauge
Table 3 Internal cylindrical screw teaching plug gauge
Xu common thread general specification
23.338 (1:.41x8.
24.768 (0.731)
27.943 (1. 1)26.513 (1.0438)Spiral length
31.118 1.2251)29.688 (1.J688)31.8 (1
324203 (1.3501)
32.863 (1.2938)
Explosion is so big
Rui'an will appear
mm (it)
Butterfly pattern
2 2/5 (11 15571 23.561 (0.92760)27.455 (1.0809) 26.711 (1.0526)) :30,635 (1.2061) 29.021 21.1780)33.812 (1.2312) 33 195 01.3031)137.468 (1.4731)36.038 (1.4:88: 31.8 (1-)36.093 (1.1564) 36.375 (1.1283)31.8(1
:0.643 (1.601)/39.213 (1.5438)5.9)
15.9)
19.1)
19.1()
41.173 (1.5816) 39.455 11.5535)2
23.N18 (1.7351) 42.385 (1.t68)1
43. 350 (1.7007).42.6034: (.6731:)sl. 1
25.093 (1.8501)45.563(1.7938)31.8(:—)17.530 (1.8319)145.x12 1 .8:13)50.168 (1.9751) 48.735 (1.9188)31.8 (:-55.518 (2.2251) 55.088 (2 1685). 34.9 (1(
49.708 (1.9570)48.054 ( .9-892.2 (number)
51.005 (2.2073)55.352 12.1792)22.2 8
62.863 (2.4751) 61.238 (2.418)50.8 (2)
162.120 (2.4575)61.717 (2.4294)159.218 (2.72511 67.788 (2.6685)54.0 (2)68.776 (2.7077;68.12 (2.6796):75.568 (7.977.]
74.134 (2.9154)54.( (26)
81.918 (3.225:) 80.458 (3. 16x) 57.2 (275.133 (2.9580) 71.419 (2.9299)1X1.-188 (3.2182;.8.1.775(3,1N01)88.268 (3.4751186.838 13.-158)57.2 42 387.8.3 (3.454-) 87.130 13.430110.968 (3.9751)
94.538 (3 91s7) 57.2 (2)
+[00.554 :3.9585).840 (3.6307)113.668 (4.4751:12.218 (4.1188) 57.2 (2 1 1 133.261 71 1501)112.547 (4.4310)25.4 2
Thread size
Major diameter of thread
Through end thread plug gauge
SY/T5022-1998
Table 3 (end)
Thread length
Thread diameter
Normal end thread diameter cold gauge
126.368 (4.9751)124.938 (4.9188) 57.2 (2 )125.971 [4.9595)/125.258 (4.9311)139.06h (5.4751)137.638 (5.4188) 57.2 (2138.679 (5.4598)137.965 (5.4317)151.768 (5.9751)/1501.338 (5.0188), 57.2 (2 -）151.387 (5.9601)150.673(5.932m)1The distance between all feeding periods is 3.175mn (0.125in, 8 teeth/in). 2 Table 4 Relevant dimension markings:
Thread length
1) According to ASVEB1.[1989 (revised version of AVS] 11.1-1952) and AVSIB1.2-1983, the apparent mean diameter of the stop is 150.675mm (5.932lin)
Figure 4 Through-end and stop-end working plug gauge of cylindrical thread Effective axis
Circular thread
Thread axis
Cylinder thread
Jiang: The thread edge of the gauge can be at an angle to the bottom, or there can be an undercut. See 4.6, Figure 5 Measured thread profile
Thread type
Im, fe., Je I..
$Y/T 5022—1998
Table 4 Gauge thread profile dimensions
Conical thread
0.658 (0.02542)
1.,-27 [0.05615)
2.743 (0.1080u)
1Calculate the thread profile dimensions, taking into account the influence of the diameter. mm (in)
Round screw
0.660 (0.02598)
1.230 (0.05629)
2.750 (0.10525)
2The taper of the round screw is 1:6, which is 166.67mm/m (2.000in/) in diameter and 3.175mm (0.1250m) in thread diameter. 3 The pitch of the round thread is 3.175mm (0.1250in). 4 The corresponding dimension marking method is shown in Figure 5.
4.4.2 The taper of the taper plug gauge ring gauge should be measured over the entire length, and the length of each end is 1.6mm (1/16in). The deviation of the actual measured length 1 should be converted into the difference of the length LpP or L in Table 1 in proportion, and should comply with the provisions of Table 5.
4.4.3 The roundness deviation of the cylindrical thread measurement (the increment of the thread pitch diameter on the thread length) should not exceed 0.00411m over its length L1. The allowable roundness deviation should be in the opposite direction, that is, the larger diameter at the entry end, and should be limited to the limit of the pitch diameter. 4.5 Matching:
The adjustable end-end and end-end cylindrical thread ring gauge should be adjusted to a suitable fit (according to the nearest question) when it is fully screwed with the calibration plug gauge. The initial state of an adjustable ring gauge can be adjusted according to the full tooth profile of the calibration plug gauge, and can also be adjusted according to the truncated tooth profile. When screwing into different positions on the calibration plug gauge, any change in fit should be very small. If there is a perceptible prying phenomenon such as that encountered in the case of a loose fit, the ring gauge should be adjusted and, if necessary, the plug gauge can also be trimmed. 4.6 Root type:
The shape of the root of the thread gauge is determined by the manufacturer. However, the radius of the root fillet should not exceed 0.25in (0.U10in), or it should be cut into a lower groove with a maximum width equivalent to the base cut-off width listed in Table 4. The lower groove should be parallel to the adjacent thread tooth side so that the lower cut and the tooth top with the helix effect cannot touch the depth. 4.7 Pitch diameter:
When calculating the pitch diameter of the round key thread, the influence of the helix angle is not considered. 4.8 Initial tightening solution #:
The large ends of the new taper thread plug gauge and ring gauge should be flush, with a deviation of (0±0.05)mm [(0-0.002)in". The standoff of the smooth taper gauge (see smooth taper gauge a in Figure 1) shall be [17.117 ± 0.05) mm [(0.6739 ± 0.02) in]. 4.9 Determination of Standoff: The standoff shall be determined by the force method as follows: a) During the test, each test piece shall be at an ambient temperature of 20°C (68°F). b) Before screwing the gauge, clean it with this and apply a clean neutral lubricant made of deerskin or wool on the thread to form an oil film:
c) - Tighten the gauge by hand and use the hammer to reach the correct relative position shown in Figure 6: 1) For gauges T1 to T9, use 0.45kg (1) force: 2) For gauges T10 to T13, use 0.91 (2Ib) short chain: 3) For gauges T14 to T17, use 1.3Gkg (3Ib) short chain; 1) For gauges T18 to T20, use 1.82kg (41h) short chain. ) The number of times the torque chain hits is not important: a sufficient number of hits should be based on the ring gauge and plug gauge not rotating relative to each other. During inspection, it is best to clamp the case on the T workbench and remove it. "Generally, the correct relative position can be achieved after 12 times of testing. 4.10 Maintenance of gauges:
The user is responsible for maintaining the gauge within the specified limit range. The gauge is inspected according to the procedure specified here. The time interval between the two inspections shall be determined according to the actual situation. · The difference between the mating close distance of the thread gauge and the initial close distance shall not exceed 0.13mm (0.005im) = inch, and it can continue to be used. 4.11 The gauge can be made of alloy tool steel, carbon tool steel or other resistant materials. The hardness of the measuring surface should be HR (58~63. 4.12 The gauge should be stabilized and treated:
4.13 The surface roughness of the thread tooth side and the measuring end of the thread gauge is R. 0.32un, and the thread top diameter is R, 0.63m=. The thread tooth side, conical surface and measuring end of the thread gauge shall not have defects that affect the use. 4.14
5 Gauge mark
The thread gauge of the chain column should be marked with the tapered thread number. Table 5 Dimensional deviation of tapered thread gauges and smooth taper gauges
Physical surface middle diameter
Base surface diameter
Smooth taper gauge Large end diameter, NP
Adjusting disk vertical diameter, J),
Male length:
Taper thread gauge
TI-TI5
T16 ~ T18
T19,T20
Light-weight gauge
T16~T18
TI--TIs
T16~: T18
Length LuLp
0.010mm (10.0004in)
+9.0omn(10.002m)
+0.010rm (±f:.004in)
-U.38um (10.015in)
-3-010 mm ( #-004.m)
++ .. (- c.)
-go\ mm ( n07.n)
= 0.017mm (± 0.0002im)
+U.U251um(=d.0003in)
10.033mm (±0.0m04m)
0.010mm (±0.0004.)
+n.013nu. (_0.0005im)
=0.018-m (=0.n0171n)
±0.03mm(±0.002im)
Base minor diameter
External, DkWww.bzxZ.net
Mirror hole diameter, Q
Adjusting disk diameter
Valve cone screw effect ring gauge
TI~TIS
T16- T18
T19, T20
Smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
Tooth side
Mating close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm（_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the measuring end faces of the taper thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:6mm (1/16in) length is not included. The deviation value of the actual measured length 1 should be converted into the storage difference of the length LpP or L in Table 1 in proportion, and should comply with the provisions of Table 5.
4.4.3 The roundness deviation of the cylindrical thread measurement (the increment of the thread diameter on the thread length) should not exceed 0.00411m in its length L1. The allowable roundness deviation should be in the opposite direction, that is, the larger diameter at the entry end, and should be limited to the limit of the middle diameter. 4.5 Matching:
The adjustable end-end and end-end cylindrical thread ring gauges should be adjusted to a suitable fit (according to the nearest question) when they are fully screwed together with the calibration plug gauge. The initial state of an adjustable ring gauge can be adjusted according to the full tooth profile of the calibration plug gauge, or it can be adjusted according to the shortened tooth profile. When screwing into different positions on the calibration plug gauge, any change in fit should be very small. If there is a perceptible prying phenomenon such as that encountered in the case of a loose fit, the ring gauge should be adjusted and, if necessary, the plug gauge can also be trimmed. 4.6 Root type:
The shape of the root of the thread gauge is determined by the manufacturer. However, the radius of the root fillet should not exceed 0.25in (0.U10in), or it should be cut into a lower groove with a maximum width equivalent to the base cut-off width listed in Table 4. The lower groove should be parallel to the adjacent thread tooth side so that the lower cut and the tooth top with the helix effect cannot touch the depth. 4.7 Pitch diameter:
When calculating the pitch diameter of the round key thread, the influence of the helix angle is not considered. 4.8 Initial tightening solution #:
The large ends of the new taper thread plug gauge and ring gauge should be flush, with a deviation of (0±0.05)mm [(0-0.002)in". The standoff of the smooth taper gauge (see smooth taper gauge a in Figure 1) shall be [17.117 ± 0.05) mm [(0.6739 ± 0.02) in]. 4.9 Determination of Standoff: The standoff shall be determined by the force method as follows: a) During the test, each test piece shall be at an ambient temperature of 20°C (68°F). b) Before screwing the gauge, clean it with this and apply a clean neutral lubricant made of deerskin or wool on the thread to form an oil film:
c) - Tighten the gauge by hand and use the hammer to reach the correct relative position shown in Figure 6: 1) For gauges T1 to T9, use 0.45kg (1) force: 2) For gauges T10 to T13, use 0.91 (2Ib) short chain: 3) For gauges T14 to T17, use 1.3Gkg (3Ib) short chain; 1) For gauges T18 to T20, use 1.82kg (41h) short chain. ) The number of times the torque chain hits is not important: a sufficient number of hits should be based on the ring gauge and plug gauge not rotating relative to each other. During inspection, it is best to clamp the case on the T workbench and remove it. "Generally, the correct relative position can be achieved after 12 times of testing. 4.10 Maintenance of gauges:
The user is responsible for maintaining the gauge within the specified limit range. The gauge is inspected according to the procedure specified here. The time interval between the two inspections shall be determined according to the actual situation. · The difference between the mating close distance of the thread gauge and the initial close distance shall not exceed 0.13mm (0.005im) = inch, and it can continue to be used. 4.11 The gauge can be made of alloy tool steel, carbon tool steel or other resistant materials. The hardness of the measuring surface should be HR (58~63. 4.12 The gauge should be stabilized and treated:
4.13 The surface roughness of the thread tooth side and the measuring end of the thread gauge is R. 0.32un, and the thread top diameter is R, 0.63m=. The thread tooth side, conical surface and measuring end of the thread gauge shall not have defects that affect the use. 4.14
5 Gauge mark
The thread gauge of the chain column should be marked with the tapered thread number. Table 5 Dimensional deviation of tapered thread gauges and smooth taper gauges
Physical surface middle diameter
Base surface diameter
Smooth taper gauge Large end diameter, NP
Adjusting disk vertical diameter, J),
Male length:
Taper thread gauge
TI-TI5
T16 ~ T18
T19,T20
Light-weight gauge
T16~T18
TI--TIs
T16~: T18
Length LuLp
0.010mm (10.0004in)
+9.0omn(10.002m)
+0.010rm (±f:.004in)
-U.38um (10.015in)
-3-010 mm ( #-004.m)
++ .. (- c.)
-go\ mm ( n07.n)
= 0.017mm (± 0.0002im)
+U.U251um(=d.0003in)
10.033mm (±0.0m04m)
0.010mm (±0.0004.)
+n.013nu. (_0.0005im)
=0.018-m (=0.n0171n)
±0.03mm(±0.002im)
Base minor diameter
External, Dk
Mirror hole diameter, Q
Adjusting disk diameter
Valve cone screw effect ring gauge
TI~TIS
T16- T18
T19, T20
Smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
Tooth side
Mating close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm（_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the measuring end faces of the taper thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:6mm (1/16in) length is not included. The deviation value of the actual measured length 1 should be converted into the storage difference of the length LpP or L in Table 1 in proportion, and should comply with the provisions of Table 5.
4.4.3 The roundness deviation of the cylindrical thread measurement (the increment of the thread diameter on the thread length) should not exceed 0.00411m in its length L1. The allowable roundness deviation should be in the opposite direction, that is, the larger diameter at the entry end, and should be limited to the limit of the middle diameter. 4.5 Matching:
The adjustable end-end and end-end cylindrical thread ring gauges should be adjusted to a suitable fit (according to the nearest question) when they are fully screwed together with the calibration plug gauge. The initial state of an adjustable ring gauge can be adjusted according to the full tooth profile of the calibration plug gauge, or it can be adjusted according to the shortened tooth profile. When screwing into different positions on the calibration plug gauge, any change in fit should be very small. If there is a perceptible prying phenomenon such as that encountered in the case of a loose fit, the ring gauge should be adjusted and, if necessary, the plug gauge can also be trimmed. 4.6 Root type:
The shape of the root of the thread gauge is determined by the manufacturer. However, the radius of the root fillet should not exceed 0.25in (0.U10in), or it should be cut into a lower groove with a maximum width equivalent to the base cut-off width listed in Table 4. The lower groove should be parallel to the adjacent thread tooth side so that the lower cut and the tooth top with the helix effect cannot touch the depth. 4.7 Pitch diameter:
When calculating the pitch diameter of the round key thread, the influence of the helix angle is not considered. 4.8 Initial tightening solution #:
The large ends of the new taper thread plug gauge and ring gauge should be flush, with a deviation of (0±0.05)mm [(0-0.002)in". The standoff of the smooth taper gauge (see smooth taper gauge a in Figure 1) shall be [17.117 ± 0.05) mm [(0.6739 ± 0.02) in]. 4.9 Determination of Standoff: The standoff shall be determined by the force method as follows: a) During the test, each test piece shall be at an ambient temperature of 20°C (68°F). b) Before screwing the gauge, clean it with this and apply a clean neutral lubricant made of deerskin or wool on the thread to form an oil film:
c) - Tighten the gauge by hand and use the hammer to reach the correct relative position shown in Figure 6: 1) For gauges T1 to T9, use 0.45kg (1) force: 2) For gauges T10 to T13, use 0.91 (2Ib) short chain: 3) For gauges T14 to T17, use 1.3Gkg (3Ib) short chain; 1) For gauges T18 to T20, use 1.82kg (41h) short chain. ) The number of times the torque chain hits is not important: a sufficient number of hits should be based on the ring gauge and plug gauge not rotating relative to each other. During inspection, it is best to clamp the case on the T workbench and remove it. "Generally, the correct relative position can be achieved after 12 times of testing. 4.10 Maintenance of gauges:
The user is responsible for maintaining the gauge within the specified limit range. The gauge is inspected according to the procedure specified here. The time interval between the two inspections shall be determined according to the actual situation. · The difference between the mating close distance of the thread gauge and the initial close distance shall not exceed 0.13mm (0.005im) = inch, and it can continue to be used. 4.11 The gauge can be made of alloy tool steel, carbon tool steel or other resistant materials. The hardness of the measuring surface should be HR (58~63. 4.12 The gauge should be stabilized and treated:
4.13 The surface roughness of the thread tooth side and the measuring end of the thread gauge is R. 0.32un, and the thread top diameter is R, 0.63m=. The thread tooth side, conical surface and measuring end of the thread gauge shall not have defects that affect the use. 4.14
5 Gauge mark
The thread gauge of the chain column should be marked with the tapered thread number. Table 5 Dimensional deviation of tapered thread gauges and smooth taper gauges
Physical surface middle diameter
Base surface diameter
Smooth taper gauge Large end diameter, NP
Adjusting disk vertical diameter, J),
Male length:
Taper thread gauge
TI-TI5
T16 ~ T18
T19,T20
Light-weight gauge
T16~T18
TI--TIs
T16~: T18
Length LuLp
0.010mm (10.0004in)
+9.0omn(10.002m)
+0.010rm (±f:.004in)
-U.38um (10.015in)
-3-010 mm ( #-004.m)
++ .. (- c.)
-go\ mm ( n07.n)
= 0.017mm (± 0.0002im)
+U.U251um(=d.0003in)
10.033mm (±0.0m04m)
0.010mm (±0.0004.)
+n.013nu. (_0.0005im)
=0.018-m (=0.n0171n)
±0.03mm(±0.002im)
Base minor diameter
External, Dk
Mirror hole diameter, Q
Adjusting disk diameter
Valve cone screw effect ring gauge
TI~TIS
T16- T18
T19, T20
Smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
Tooth side
Mating close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm（_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the measuring end faces of the taper thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:9 Determination of the close distance:
The close distance shall be determined by force method as follows: a) During the inspection, the test parts shall be at an ambient temperature of 20t (68°F). b) Before screwing, the gauges shall be cleaned with this and a light neutral lubricant made of clean deerskin or wool shall be applied to the threads to form an oil film:
c) The gauges shall be tightened by hand and the correct relative position shown in Figure 6 shall be achieved by using a hammer under the hammer: 1) For gauges T1 to T9, use a force of 0.45kg (1) 2) For gauges T10 to T13, use a short chain of 0.91 (2lbs) 3) For gauges T14 to T17, use a short chain of 1.3Gkg (3lbs); 1) For gauges T18 to T20, use a short chain of 1.82kg (41h). ) The number of times the torque chain hits the mountain is not important: a sufficient number of hits should be based on the ring gauge and the plug gauge not rotating relative to each other. During inspection, it is best to clamp the case gauge on a flexible T workbench and unload it. "Generally, the correct relative position can be achieved after 12 times of testing. 4.10 Maintenance of gauges:
The user is responsible for maintaining the gauge within the specified limit range. The gauge is inspected according to the procedure specified here. The time interval between the two inspections shall be determined according to the actual situation. · The difference between the mating close distance of the thread gauge and the initial close distance shall not exceed 0.13mm (0.005im) = inch, and it can continue to be used. 4.11 The gauge can be made of alloy tool steel, carbon tool steel or other resistant materials. The hardness of the measuring surface should be HR (58~63. 4.12 The gauge should be stabilized and treated:
4.13 The surface roughness of the thread tooth side and the measuring end of the thread gauge is R. 0.32un, and the thread top diameter is R, 0.63m=. The thread tooth side, conical surface and measuring end of the thread gauge shall not have defects that affect the use. 4.14
5 Gauge mark
The thread gauge of the chain column should be marked with the tapered thread number. Table 5 Dimensional deviation of tapered thread gauges and smooth taper gauges
Physical surface middle diameter
Base surface diameter
Smooth taper gauge Large end diameter, NP
Adjusting disk vertical diameter, J),
Male length:
Taper thread gauge
TI-TI5
T16 ~ T18
T19,T20
Light-weight gauge
T16~T18
TI--TIs
T16~: T18
Length LuLp
0.010mm (10.0004in)
+9.0omn(10.002m)
+0.010rm (±f:.004in)
-U.38um (10.015in)
-3-010 mm ( #-004.m)
++ .. (- c.)
-go\ mm ( n07.n)
= 0.017mm (± 0.0002im)
+U.U251um(=d.0003in)
10.033mm (±0.0m04m)
0.010mm (±0.0004.)
+n.013nu. (_0.0005im)
=0.018-m (=0.n0171n)
±0.03mm(±0.002im)
Base minor diameter
External, Dk
Mirror hole diameter, Q
Adjusting disk diameter
Valve cone screw effect ring gauge
TI~TIS
T16- T18
T19, T20
Smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
Tooth side
Mating close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm（_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the measuring end faces of the taper thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:9 Determination of the close distance:
The close distance shall be determined by force method as follows: a) During the inspection, the test parts shall be at an ambient temperature of 20t (68°F). b) Before screwing, the gauges shall be cleaned with this and a light neutral lubricant made of clean deerskin or wool shall be applied to the threads to form an oil film:
c) The gauges shall be tightened by hand and the correct relative position shown in Figure 6 shall be achieved by using a hammer under the hammer: 1) For gauges T1 to T9, use a force of 0.45kg (1) 2) For gauges T10 to T13, use a short chain of 0.91 (2lbs) 3) For gauges T14 to T17, use a short chain of 1.3Gkg (3lbs); 1) For gauges T18 to T20, use a short chain of 1.82kg (41h). ) The number of times the torque chain hits the mountain is not important: a sufficient number of hits should be based on the ring gauge and the plug gauge not rotating relative to each other. During inspection, it is best to clamp the case gauge on a flexible T workbench and unload it. "Generally, the correct relative position can be achieved after 12 times of testing. 4.10 Maintenance of gauges:
The user is responsible for maintaining the gauge within the specified limit range. The gauge is inspected according to the procedure specified here. The time interval between the two inspections shall be determined according to the actual situation. · The difference between the mating close distance of the thread gauge and the initial close distance shall not exceed 0.13mm (0.005im) = inch, and it can continue to be used. 4.11 The gauge can be made of alloy tool steel, carbon tool steel or other resistant materials. The hardness of the measuring surface should be HR (58~63. 4.12 The gauge should be stabilized and treated:
4.13 The surface roughness of the thread tooth side and the measuring end of the thread gauge is R. 0.32un, and the thread top diameter is R, 0.63m=. The thread tooth side, conical surface and measuring end of the thread gauge shall not have defects that affect the use. 4.14
5 Gauge mark
The thread gauge of the chain column should be marked with the tapered thread number. Table 5 Dimensional deviation of tapered thread gauges and smooth taper gauges
Physical surface middle diameter
Base surface diameter
Smooth taper gauge Large end diameter, NP
Adjusting disk vertical diameter, J),
Male length:
Taper thread gauge
TI-TI5
T16 ~ T18
T19,T20
Light-weight gauge
T16~T18
TI--TIs
T16~: T18
Length LuLp
0.010mm (10.0004in)
+9.0omn(10.002m)
+0.010rm (±f:.004in)
-U.38um (10.015in)
-3-010 mm ( #-004.m)
++ .. (- c.)
-go\ mm ( n07.n)
= 0.017mm (± 0.0002im)
+U.U251um(=d.0003in)
10.033mm (±0.0m04m)
0.010mm (±0.0004.)
+n.013nu. (_0.0005im)
=0.018-m (=0.n0171n)
±0.03mm(±0.002im)
Base minor diameter
External, Dk
Mirror hole diameter, Q
Adjusting disk diameter
Valve cone screw effect ring gauge
TI~TIS
T16- T18
T19, T20
Smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
Tooth side
Mating close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm（_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the measuring end faces of the taper thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:002im)
base minor diameter
outside, Dk
mirror hole diameter, Q
adjusting plate diameter
valve cone screw effect ring gauge
TI~TIS
T16- T18
T19，T20
smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
tooth side gauge
matching close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm (_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the two axis flashes of the cone thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:002im)
base minor diameter
outside, Dk
mirror hole diameter, Q
adjusting plate diameter
valve cone screw effect ring gauge
TI~TIS
T16- T18
T19，T20
smooth Bias gauge
T1 ~-15
T15-T18
T19，T20
TI~T15
T16-T18
T19，T20
tooth side gauge
matching close distance
±t.5mm(10.002in)
±0.38mm (±0.01Sin)
±n.38mm (1U.015in)
+0.38mm (±0.015n)
Rmm t1 in)
-0.m(gin)
-t:nm (-Ein)
+0.017uu(1(1.0002in)
10.025mm(±0.n003in)
±n.n33mm:(10.0004in)
±n.015mm (_0.0006in)
_0.020mm (=0.0008im)
=0.025nm (1U.0010m)
±0.05mm（±0.002in)
The verticality tolerance of the two axis flashes of the cone thread oxygen gauge and the plug gauge for the sliding dimension drum gauge is 0.025mm【0.,001in）Note:
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