JB/T 9151.3-1999 JB/T 9151.3-1999 Fastener test methods Dimensions and geometric accuracy Self-tapping screws JB/T9151.3-1999 Standard download decompression password: www.bzxz.net

1CS 2E.060.01
Machinery Industry Standard of the People's Republic of China
.[B/T 9151.1~9151.7-1999
Method of verification for fastenesSizeandgeometry
Published on 1999-06-28
State Machinery Industry Bureau
Implemented on 2000-01-01
E Fan Circle
Machinery Industry Standard of the People's Republic of China
Method of verification for fastenesSireandgeanety-Tapping serewsJB/I 9151.3-1999
Recommended 7BF13(02:1—90
This standard specifies the test methods for the dimensions and geometric accuracy of self-drilling screws and self-drilling locking screws, and should be used in conjunction with the corresponding product standards and basic standards.
This standard specifies two or more test methods for items that are not specified. If necessary, the supplier and the buyer should reach an agreement. The technical standard applies to self-drilling screws and self-drilling locking screws specified in national standards and industry standards, and non-standard parts are still used for reference. Note: The size codes used in this standard are consistent with product standards and basic standards except where otherwise specified. 2 Reference standards
The provisions contained in the following standards are referenced in this standard and constitute the provisions of this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest version of the following standards. GB/T 944.1-E985
GE1214.2—1996
GE/T1214.3—1996
AB/T1216—1985
GB/T 1219—1985
GAT 1957—1981
GE/T61881986
GA/T65591986
IB/T7980-1999
JB78B-1998
Screw angle cross slot
Vernier caliperVernier caliper
Vernier caliperHeight vernier caliperbZxz.net
Outer diameter 2-meter
White scale
Smooth limit gauge
Six-shaped T-type for fasteners
White tapping screw thread coarse back thread through thread series radius sample cabinet
3 Thread test items, methods and inspection tools
Thread test items, methods and inspection tools are in accordance with the provisions of the table ", approved by the Guohao Machinery Industry Bureau 5999-06-2
2000-01-01Implementation
JB/T 9151.3—1999
Test items and test methods
Outer diameter of self-drilling quick-release screws: Standard
Standards of 4.1
of standard T65541986
Specialized smooth ring heat and air test pass: The end of the screw should not exceed the smooth ring gauge surface
The three-dimensional height of the self-drilling screw should not exceed the outer diameter The micrometer is used to measure the major diameter of the self-tapping screw at [2 places, and the external micrometer is used to measure at 12 places. The smaller diameter of the self-tapping screw is measured at 12 places with a special caliper of 0.02mm. The other test items, methods and inspection tools are as specified in Table 2. Table 2 Test items and test methods: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. 81.
Use a 0.02mm caliper to make measurements within the range. 2:
Use a special stop-end upper gauge to measure within the specification. The lower scale of GT1216 standard
The scale specified in GB/11216
The caliper specified in GB/TT1214.2 is modified
The lower scale specified in GH/1216
Method! :
G/T1214.2 specifies the front caliper
Method 2:
The upper gauge is in accordance with (RT197
Method 3:
The inspection is in accordance with the provisions of GB/T1957
Method 3:
891513-1999
Table 2 ()
Specify the test items and test methods
Use a special upper test mold to measure! As shown by!) Figure 1
Open width R
Method! ：
Use a 0.12mm ruler to measure
Method 2:
Use a special through-ink gauge to measure the plate
and maintain the depth!
Method!
Use a 0.02mm caliper to measure the most sensitive part (along the bottom of the door: along the center line-convex bottom)
Method 1:
Use a dial indicator (sheet probe) to avoid measurement and method 3:
Use a special through-ink gauge to measure
Ten-precision depth
Use a digital measurement table to measure the most accurate flower shape! and B
Use a 0.02mm carbide gauge to measure B
Head height is
Method! ：
(1) Hexagonal head, back column head:
Measure with a 0.02mm caliper
(2) Countersunk head:
Measure with a test sheet (as shown in Figure 2) Inspection method 1:
Use the caliper specified in GB/T12142.
Method 2:
Plug gauges should be in accordance with the caliper specified in GB/T195T
GB/T1214.2
Self-caliper specified in GB/T219.
Method 3:
Room gauges should comply with the 1-digit gauge specified in GB/T1957
HFE944.1 |tt||Continental phase table
GE/F61B8 standard hexagonal flower-shaped
type depth gauge
GT1214.2 standard
Method 1:
【t】GT1214.2 specified
(2 and (3) with 1215
help specified micrometer
(3) Mesh head:
JB/T9151.3-1999
Table 2 (velvet)
Test item Japanese test method
Use inspection reading (double-use specification large-size inspection palm, to avoid, etc.) point micrometer (sheet dosage head) for measurement (as shown in Figure 3) Benchmark drawing
Experience recommendation||t Method 2: Use a special outer diameter ruler to measure. Method 3: Use a special caliper to measure the diameter of the large angle head. Method 1: Use a 0.02m caliper to measure. Method 2: Use a special caliper to measure. Use a 0.05mm caliper to measure the nominal diameter, thread length and the bearing surface. Method 1: Use a 0.02mm ruler to measure. If the circumference of the pad surface is unclear, remove the upper edge first, then print it on the pad, and then measure it. |tt||Inspect the basic size of the die hole diameter and the basic size of the larger diameter of the screw. |tt||The axis of the hole should be perpendicular to the base, and the intersection with the base should not be rounded or chamfered. |tt||Method 2:
0T1216-subdivision rule
Method 3:
The caliper gauge should conform to the
width of GB/T1957!
GBT1214.2
Method 2:
The caliper gauge should conform to the
caliper gauge specified in GB/T1957
GBT1214.2
Method 3:
The caliper gauge should conform to the
caliper gauge specified in GB/T1957
GBT1214.2
Method 4:
GB/T1214.2 Specified calipers
Method 2:
The caliper gauge should conform to the provisions of GB/T1957
Formula 2:
JB/T 9131.3-1999
Table 2 (end)
Test principle and test method
Special state, mountain caliper for length
head
Use the projection instrument to measure
Open the curvature radius of the opening
Use the projection instrument to measure
Method 2:
First, the long side of the half-air sample is packaged, and then the opening part is opened, and the connection is repeated with the same condition: move the sample and measure the bottom: if the groove is colored, the test is unqualified: otherwise, the test is unqualified
5 Geometric precision test items, methods and inspection materials The test items of the precision have been tested, and the methods and inspections are specified in Table 3. Note: The influence of shape error is ignored in the test of coaxiality and gravity. Table 3 Test items and test methods Straightness of the support surface and the punching part Method 1: Use a special inspection tool with a variable head and a dial indicator to measure Method 25 Use a special angle caliper and a feeler gauge to measure the axial section of the head to the nail axis Use a special light tool with a chuck and a dial indicator to measure the circular movement of the countersunk head and the nail rod axis Special inspection tool with a smooth head Use a tool and a dial indicator to measure the temperature. Open the light to hit the axis line. Select a special climbing inspection tool with a central text. Use a dial indicator (sheet-shaped pan head) to take a height caliper to first measure the number of teeth on one side of the box, rotate 180 degrees, and then trace the number on the outside. The difference between the two is the measured value. Projection instrument. Method 1: Projection instrument. Method 2: JB/T79%60 The radius of the gauge Select plate
or special water diameter sample plate, its registered
method reaches 1:
B/T1219 specified dial indicator and
special inspection tool
method 2:
(Basic is not without
! The combination of the part and the operation part
modification should also avoid the thread end
2] The piece
of the dial indicator measurement
JBT8S specified Tongchen & special
should be 08 side ratio (5) with angle caliper gauge, dial indicator specified in GB/T1219 and special gauge specified in CE/T1219 and special gauge specified in GB/T1219 and self-adjusting gauge specified in GB/T1219 or height caliper specified in GBT1214.3 and 111 in serial number 1 of this document
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