Some standard content:
IC547.020.3C
National Standard of the People's Republic of China
GB/T 12522-1996
Stainless steel bellows expansion joints1996-12-18 Issued
1997-08-01 Implementation
State Administration of Technical Supervision Issued
GBT12522--1996
Shenzhen Standard Manufacturing Association EJMA-1393 and GB12582SC can be ordered: The biggest feature of EJMA-1998 is that the design formula has a relatively good validity with the actual test data, so under the same conditions, there is a significant confusion between the theoretical characteristics of the broken account and the medicine. This standard is based on the two types of CE569.GH2501: the nominal diameter is expanded on the basis of the original GB1252290: 100mm, 100mm, 100mm, 100mm, 100mm, 100mm, 2mm, and the value of the modulus displacement loss stiffness is increased. And the main performance indicators such as the number of life tests are quantitatively determined: the calculation of the displacement of the shadow section, the force and moment and the vibration calculation are given in the appendix, and the calculation of the displacement and moment is given in the appendix. This standard can replace G2522S0, CB*61.81 from the date of entry into force. This standard is drafted by China Shipbuilding Industry Corporation: China Shipbuilding Industry Corporation 11: This standard is drafted by China Shipbuilding Industry Corporation, and the steel corrugated steel factory. Drafters of the macro standard: Sun Wengming, Ye Peikun, Yu Guhai, Qu Hunpi, Mao Yinwei: Scope
National Standard of the People's Republic of China
Stainless steel corrugated expansion joints
Stainless 5teel bellows expunsion GB/T12522:1996
Replacement G126229
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements of stainless steel corrugated expansion joints (hereinafter referred to as expansion joints) with wide flange connection dimensions (559, $%2511). This standard is applicable to internal combustion engine pipes. As a compensation device for thermal expansion and contraction of the screen, it can withstand the impact of pipeline heat in the storage system. Other local roads can also refer to it. Reference standards
The following standards contain provisions that are generally cited in this standard and become the relevant texts. After the publication of this standard, all versions are valid and all standards will be revised: The user of the technical standard should explore the possibility of using the latest version of the following standard. G191-90 Packaging and transportation graphic marking
G56365 Marine method front connection size and sealing surface GBT i30—92
Light tolerance linear dimension unmarked tolerance
(F201—89 Natural flange quick connection dimensions and cover (four-digit) GB6348-8G Flow transport packaging delivery and receipt mark
(:H/T12777-91 General technical provisions for metallographic bellows energy saving joints 157 Stainless steel thin cabinet welding technical conditions
H236—81 Pressure equipment filtration, packaging, transportation CB1375515G Folding back flange and gasket
3 Product classification
Expansion joint type printing base number according to Table 1.
Waist expansion joint type and salt truck vertical number
Nominal positive force PW
3.2 Expansion joint structure and basic size
Nominal full diameter N
65~·5c2
3.2.1 The uniform and basic size of A type expansion joint shall be in accordance with Figure 1 and Table 2.3.2.2 The structure and basic size of A5 type service joint shall be in accordance with Figure 1 and Table 3.3.2.3 The transfer and basic size of BS type service joint shall be in accordance with Figure 1 and Table 4. Guohao Technical Supervision Bureau approved Lanlian on December 18, 1996
GH25F1
199 7-08-01 Selling and testing
Integration and inspection
GB.72522·-1996
Morning sound: 2-Set red notice: 3 This frequency rod: 1-legal benefit diagram! Stainless steel pivot wave expansion
I? Basic size of A-type expansion joint
Station average small
155221
216:3265
263173
26G170
Flange Minzhong
155133
170138
1 36158
21sr:x3
21012u
1270-2
13a54i
Point non
.-.:790
degree-Nmaln
Nominal force source diameter
Structural size
GH/T12522.1996
Table 2 (complete)
Flange civil
486570
516626
With station number and size, the quantity is not used.
635591
Change to the total theft displacement as the value of the total position of the continuous ring number within S.
ay:-total displacement (value of Ar= in the table).5F
corrugation area.
height of the material that can be used for the joint (the horizontal brushing degree of the model) 6K.
the horizontal width of the shadow joint.
, can be obtained by the right-angle three-boat method, see the right figure,:
nominal pressure nominal encounter street
type,
structure scale ten
AS type plant joint stem wood R piece
Loulan scale
87533516
4:0395
total displacement
rigidity,Nim
79. 7 665. 2
Theoretical characteristics
Total displacement
Nominal working force bridge source
Construction size
Same as the note in Table 2
515520
r1c720
211321
F13923
16:113
3122121
1521638
GB12522
Table (end)
Flange size
FO5:26
812F
175020
:27s an
375t 22n
145142
:57535203e
:6201 750
:?2c1950
82 on 95m
902950
224150
.6901 636
:7901
: 89ct 330.
3nenr3ci
.2 1903 180
Special Parts
:2 7-13
145775
Gangji/mm
803-2
191:52-
22 299
2tru25
97 901
30 945
34-1+3
Jr2. 3 6 359.2
JE8.3. t||173. 5 9 274.2
107.4 :1 202.9
166.310537.c
119. 6 1 355.6
GB/T12522-199E
Table 1BS type expansion joint basic dimensions
Nominal ratio nominal pressure
(1309)
Note for table,
Dalanjin
1751 12 24
1312--13-
111534
726:1364
12ct95
2620216
1271220
157591 520
16901620
1700134
en ao
Unit shift
27907: -
22 259
25-923
107.01229.1
111.3 5 062- 6
81.33 026.5
84.n 3 510. 3
93.3 278.0
3.3 bid! Example
The ball pressure is 10MPa, the nominal diameter is 150mm, and the number of fluids is 4. The dimensions of the flange reverse connection and the seal without chain adjustment are as follows:
Expansion joint A153-1GB/T125221996
Nominal pressure is U, 1MP: nominal channel weight is Omr, wave number is 3. According to R251 method, the three-connection seal surface is stainless steel and is formed by pulling the expansion joint:||tt ||Lian Zhang Shu 45100-3G8/13522—:954
The nominal positive force is 0.05MPa. The nominal diameter is 1500mm , the number of political is 5, according to G62501 flange connection size and damage to the surface (matching> stainless steel corrugated expansion joint:
joint joint BS1500-5GB/T125221996
4 technical expansion joint Request
4.1 Materials
4.1.1t The materials of the required parts are according to Table 5,
wave mosquito teeth, it is a bit difficult
GB/ T125221596
5Material of main military parts
Not on the list
NFIANIT
Your name
GH 4237—22
4.1.2 The material supply status of Bowenpu is in the state of quality assurance. It should be certified by the manufacturer and can be used only after it has passed the re-inspection according to the standards as needed. 4.2 Design calculation of bellows, calculation of vertical displacement, force and moment effect of service joint is shown in Appendix A (suggested Appendix) 4.3 Calculation of displacement force and thermal expansion is shown in Appendix D (suggested Appendix) Appendix). 4.4 Narrow ring || tt || 4.4.1 Steel for filter grain reed When making the corrugated pipe, the ring welding should not be used. 4.4.2 The longitudinal welding chain of the corrugated pipe should be the least: when the thickness of the pipe is less than C.5mm, the spacing between adjacent welding chains should be greater than T150rm. The number of welds shall not exceed 1.
4.4.3 The welding of plates shall be carried out by short arc welding or plasma welding: the misalignment of the welded plates greater than C.5T and the concave depth of the weld shall be controlled. The height should not be greater than 10 times the thickness of the device. The number of radiographic inspections of the graded coal seams and the number of radiographic inspections shall be determined by agreement. When conducting radiographic inspections of the longitudinal furnace of the corrugated pipe, the grade requirements of QI1165 shall be met. 4.4.5 Corrugated pipe failure 4.4.6 The longitudinal welds of each layer of the corrugated tube shall be evenly distributed along the circumference of the mesh and shall be free of water, moisture, dirt, etc. .7 The corrugated surface should be of the same shape, and a slight die reduction is allowed on the surface, but no significant The obvious unevenness and the negative deviation of the thickness of the sheep layer shall be greater than the attenuation.
4.4.8 The wave height of the tube is 1.4.8, so the maximum limit deviation of the total length of the corrugated tube without tolerance shall comply with the minimum limit deviation of the L /T18 intermediate level requirements, the liquid channel section and the side wall plane must be tested. 4.5 Shadow
4.5.1 The connection dimensions of the A-type flange are in accordance with GH559:A5. The detailed connection dimensions of the expansion joint flange of type B2501 are in accordance with the provisions of 1L/T3766. The pipe, guide and flange are connected by coal, and the rest of the mines are connected by ordinary electric welding. 4.5.2 The minimum gap between the guide tube and the single installed by the intelligent is not less than half of the total position of the handle, and the flow mark Should be consistent with the two-flow question, the installation time should not be reversed,
4.5.3 The expansion section of 5 waves with a fast diameter greater than or equal to 1 is allowed to use 2 waves and 3 waves of two paper mosquito pipes Add inner sleeve welding. 4.5.4 The weld surface of each part of the expansion tooth shall not have defects such as cracks, pores, flying objects, etc. 4.5.5 The expansion joint tolerance is = 2.5mm, verticality 1% DV, The day is not less than 3mm, the coaxial is 5mm4.5. The stiffness of the energy section is calculated according to the formula in A5.3 of GB/12f?7-91 as the given value. The manufacturer provides a clear increase \ Initial theoretical flash: If the user requires, the working interval of the expansion joint can be provided. The deviation between the actual average brushing value of the product and the calculated value shall not exceed 3.5.7. The pressure test should be carried out according to the provisions of 4.4.11 and 4.4.13 of GB/T12777-91. 5. The Japanese manufacturer should provide the permissible fatigue life value of the joint. When the user requires a modified emergency inspection, the continuous life test should be selected. The minimum value is the total displacement of the expansion joint under nominal gauge force and flap direction. The number of times of use cycles is 1, and the SPW will be tested for water pressure without leakage, which means it is a qualified product.
4.5.9 Positioning the account rod to ensure that the expansion joint can be used during transportation and installation Too light to produce deformation, use the positioning blasting to fix the drum operation for the mouth 11 installation state, the tube after installation is completed, use the protective film to remove the fixed screw (absolutely avoid gas cutting) to restore its tensile performance . 5 Test methods
5.1 Materials
G8/r12522996
The materials used for the wave effect tube shall be inspected according to the material list. If there are special requirements, the special inspection shall be carried out. Appearance
Appearance inspection is carried out by visual inspection under moonlight or lighting. 5.3 Dimensional inspection
Use general measuring tools that meet the requirements of the specified specifications. 5.4 | The welding of the joints should be checked by monthly testing method - it should meet the safety requirements of 4.5.4, and the full-threaded pipe longitudinal code chain should be checked according to Q, 115-37. 2. "Appearance quality control inspection (5 damage effect can be used) Large mirror). 5. 5. Force test
The positive force test of the expansion joint is in accordance with 5.6 of GB/T1277-91. 5. The degree test of the whole account is in accordance with (n/T12777-91 5.a According to the provisions: 5.? The labor life test of the labor table
color account section can be carried out under the condition of benefit, the test output is the nominal power, the cycle position is converted to Table 2, The leakage specified in Table 3 and Table 1 is the total displacement. The selection of the cycle rate should ensure that the bending state of each sentence (one stream is greater than 30 times per minute) The fatigue cycle determination of the rate section of the drum test is not as specified in 4 and 5.8. 6 Inspection rules
6.1 Factory inspection
6.1.1 Pre-inspection should be carried out before the product leaves the factory. 6.1.2 Inspection items should be in accordance with the provisions of Table 6
Table 6 Factory powder inspection items and requirements
Control items
External express approval
Major damage detection inspection straight
bottom to get 4.6.7, 4.-4
symbol + 4-4.1
When the test results of one or more items are not correct, If qualified, after thorough inspection within the permitted range of the standard, all unqualified items shall be re-inspected and unqualified products shall not be shipped out of the factory. 5.2 Type Inspection Objects
6.2.1 The film section is taken during the trial production process When the national quality supervision and inspection agency requires type inspection, type inspection should be carried out. 6.2.2 The current date of type inspection shall be as specified in the table. Dingdian
Non-insurance light vehicle
GB/T 12522
Table? Model I should verify the class reform requirements
Xie complies with 4. 4 7,4. 5. 4
Should meet +.4.4
install labor
6.2.3 type test questions of the ball test number is not less than 2 groups, out of 1.4.2,4. 3.3 ,4.4.5、4.4 8,4.5.5 4.5.7
6.2 When any item in the type inspection is qualified, it is necessary to review the design, process, etc. and use the agricultural quantity to meet the requirements of the product. If one item is not qualified, it is considered to be inconsistent with the type inspection? Marking, packaging, transportation and storage
7.1 The flange surface of the expansion joint should be printed with the required product mark Marking, 7.2 Take protective measures to prevent deformation and damage during transportation and installation. 23 Wave effect pipe, stainless steel parts, Honglan sealing surface, one missing - the outer surface of the remaining parts Anti-induction bottom Chen Zun·Silverware paint treatment, 7.4 mountain, the letter of thanks must be accompanied by the quality or qualified certificate and installation instructions: the certificate should be included in the brackets:! Product name and type code:
hThe appearance of the product is very good! ：
! 7.5 The relevant regulations in [13253] should be selected: 7.6 The packing box should have the product name, shipping label, quantity label, box name, moisture-proof label, etc., or the corresponding B01. GE6393 regulations: 7. The packaged products will not be damaged by rain. 10. Transport by any means of transport. 7.8. Before installation and before installation, the expansion joint should be placed in a dry and clean environment without any odor. Avoid any disturbance or change in the H-type. 1.1 Design period of expansion joint 1.1.1.1.2.1.2.1.2.1.2.1.2.1.2.1.2.1.2.1.3 ... Wave distance.m
Wave quotient.tn:h=(/4)/2
Effective length of the tightening probe.
Length of the straight edge section.Ta
-.—Coefficient=/[1.If sample=1, then take a corresponding,MPa,—allowable degree of material sample,MPa,
The superscript indicates the temperature:
Indicates the stress of the straight edge section:
When calculating the variable stress!
indicates the evaluation of the wave effect stress;
. Physical stiffness of a wave. N/mm:
K-. The relative position of a wave. N/mT: F material elastic modulus. MPa:
. The superscript indicates the weave:
The lower subscript b, C, and "respectively indicate the band exchange of the materials of the bellows, hoop, and fastener; 2
The number of layers of the bellows material
The number of waves of a group of wave effect wings:
The number of cycles allowed
The compensation amount for each technique, rum
Amount Total displacement in fixed axial direction mm:
Formula for determining the displacement in fixed axial direction m:
Material linear expansion coefficient r/mmC;
Safety and working temperature difference
4 series = 550c20530℃
No pressure MP:
.\No heat loss section pressure MPa
Coefficient · strength diagram A1 line,
Coefficient diagram A curve!
One coefficient. The A3 curve is subjected to the impact:
——Material strength coefficient
GE/T :2522--1996
EC. Strict 1.5, for annealed corrugated tubes. [3., for unannealed corrugated tubes. bZxz.net
A1.2 Calculation of stress and its evaluation criteria
41.2.1 Without reinforcement
±1-2. 1. 1 Stress calculation
The global stress of the corrugated tube caused by internal pressure is calculated according to the formula (AI) P(d+2t)*LE
2EREL)
The membrane stress in the circumferential direction of the sleeve caused by internal pressure is calculated according to the formula A3. E
,=24,Z
The circumferential stress of the deformed part caused by internal pressure is calculated according to the formula (A3). 22t.5. 571 + The radial film stress of the corrugated part caused by the internal pressure is calculated according to formula (A), the radial bending stress of the corrugated part caused by the internal pressure is calculated according to formula (A5), the radial thin film stress of the liquid part caused by the displacement is calculated according to formula (A6): Et,c
The meridional bending stress of the corrugated part caused by the displacement is calculated according to formula (47). SEAE
A1. 2. ,2 Stress assessment standard
,0, the value of the body should be determined by the change of fatigue life (see A1.3), 41.3 reduced pressure special life
for the body of stainless steel fatigue life value according to the formula! A. = 2823.4 / (, -372.38) (not strong ring) Wu:
2 = 5.7 (, +) + (,
41.4 ground figure
without such a strong ring, a wave of theoretical harm to the public or (29) calculation K = 1. TD.EZ / C
bellows total example connected formula (A [\> return, KK, / n
(A2)
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