JB/T 10232.2-2001 Threading tool sets Part 2: Technology

JB/T 10232.1-2001 This standard specifies the technical conditions, inspection methods, marking and packaging requirements for the assembly of taps, round dies and other accessories. This standard is applicable to complete sets of thread tools for repair. Processing metric threads M3~M24, unified threads №4~№12 and 1/4~1, 60° tapered pipe threads NPT1/8, NPT3/4. This standard was first issued in March 2001. JB/T 10232.2-2001 Complete sets of thread tools Part 2: Technical JB/T10232.2-2001 Standard download decompression password: www.bzxz.net

ICS25.100.50
Machinery Industry Standard of the People's Republic of China
JB/T 30232.2—2001
Complete threading tool sets
Part 2: Technical conditions
Cambination tap and die part2: technical specifications2601-{3-29 Issued
China Machinery Industry Federation
2001-07-01 Implementation
JB/T10232.2—2001
This standard was first issued on March 29, 2001. This standard was proposed and approved by the National Standardization Technical Committee. The main drafting units of this standard are: Shanghai Threading Factory Co., Ltd., Chengdu Threading Research Institute. The main contributors of this standard are: Gu Pixuan, Zhu Huanming, Xia Yu, Gong Chanlin, Zhao Jianmin. Scope
Machinery Industry Standard of the People's Republic of China
Complete set of thread tools
Part 2: Technical specifications
Cambinztia tap and d part2:technieal specificationsJE/T10232.2—2001
This standard specifies the basic requirements such as the technical conditions, inspection method, marking and packaging of the thread tools, round dies and other accessories. This standard is applicable to thread tools for assembly. Metric thread M3-M24, unified thread Nu.4-ND.12 and 14-160* taper thread NPT1/8 and NPT3/4
Technical requirements
2.1 The same parts of the same type shall be treated with the same surface, and there shall be no significant difference in the surface of the tool. 2.2 Taps || tt || 2.2. The thread surface shall not have defects such as cracks, nicks, rust and burns that affect the performance. 2.2.7 The maximum allowable value of the thread surface roughness shall be in accordance with the provisions of Table 1. 2.2.3 The thread profile is shown in Figure 1, and the maximum dimensional deviation shall comply with the provisions of Tables 2, 3 and 4. Public property of the school
Modified public welfare
Effective basic tooth sound
-Large light [public diameter]
-Small diameter
Medium light upper front service
Large diameter lower tendency
dD)-Medium diameter
Medium diameter public
-Medium diameter lower position tooth
China Machinery Industry Federation 2001-03-29 approved Figure 1
Thread money photography thread tooth type
2001-07-01 implementation
Thread surface
Nominal diameter
>11.222.4
>27 4- 24
JB/T10132.2—2001
Table Maximum allowable values ​​of final cone surface roughness
Table 2 metric thread thread male stem
Big shoe d
Lower deviation
.0.068
Center
Lower deviation
Fast distance clearance
Number (pieces)
Angular number
ND.4-40NC
Nu832NC
No.I-32NC
No.10-24NC
No.12—24NC.
E/4-28NF
1i4-20N C
5/16-16NC
5/1624NF
3/R-24NF
3/8-16NC
Z16-14NC
7/16-20NF
J/2-20NF
1/213NC:
W1612NF||t t||9:1618NC
5/8-18NF
5/81NC
3/416NF
3/4-10NC
7/R-14NF
T/8-9NC
1-12NF
127IKI
25 400
JB/T10232.2—2001
Table 3 Thread tolerances of standard taps
1 9540.127
2.117:0.137
.3.650
Lower tolerance
Specification of distance
Number of pieceswww.bzxz.net
Entire size
JB/T10232.2—2001
Table 4 Thread tolerances of standard pipe threads
Turning point diameter 4, tolerance b12.
Re-calibration surface
Center diameter
Tooth profile half angle
Tolerance of illumination
2.2.5 The angular runout of the tap cutting part and the radial runout of the calibration part shall not exceed 0.15mm (the runout of 60° pipe thread taps shall be based on the common axis).
2.2.6 The tolerance of the effective taper square head size shall be B13. The reverse thread part shall have a tolerance (except for 60° pipe thread taps) 2. 2. 7
The tolerance of the length of the total length of the screw thread is in accordance with the provisions of Table 5. Table 5 Tolerance of the length of the screw thread
Nominal length
Tolerance of the total length
Tolerance of the length of the screw thread
The screw thread of the single taper shall be made of GCr!5, T12A or other grades of tool steel with the same performance as the dog. It can also be made of high-speed tool steel.
2.2.10 In addition, the following provisions shall be followed:
a) The allowable minimum value of the hardness of the thread and the thread part shall be in accordance with the provisions of Table 6. Table 6 Hardness of the thread part of the tap
Nominal diameter
>3 - 6
Alloy L tool steel, carbon tool
b) The hardness of the taper shank from the end of the two calipers should not be less than 2% HKC2.3 Reading the die
2.3.! The die surface should not have pocket marks, bumps and rust and other defects that affect the performance. 2.3.2! The cutting edge of the die should be sharp and free of burrs, sharp edges and abrasive burns. 2. 3. 3
The allowable values ​​of the surface measurement of the company's die shall be in accordance with the provisions of Table 7, special
60EIRC
External circle, braided surface
JE/102322-2001
Table: The rough surface of the round die is allowed to be repaired. The surface
Z.34 The tolerance of the outer diameter of the round die shall be in accordance with 1, and the tolerance of the thickness E shall be in accordance with 3. 2.3.5 The position tolerance of the round die shall be in accordance with the provisions of Table 8. Table 8 The position tolerance of the circular tooth
The radial runout of the outer circle to the axis
and the runout of the surface
The cutting back
The cutting edge to the outside
The round runout between materials
2.3.6 The round die shall be made of 9SiCT:T12A or other grades of alloy tool steel with equivalent properties, and can also be made of high-speed tool steel.
2.3.7 The hardness of the threaded part of the die made of alloy tool steel or carbon tool steel shall not be less than 5HRC. The hardness of the threaded part of the die made of high-speed tool steel shall not be less than 60HRC. 2.4 Taps, handles, thread templates, screwdrivers 2.4.1 The appearance of tap handles, handles, thread templates, screwdrivers and other male parts shall be polished, and there shall be no defects such as nicks, marks and serious damage that affect the performance
2.4.2 The tap handles and handles are recommended to be made of 45 steel. 2.4.3 The screwdriver is recommended to be made of 40Ct. 2.4.4 The hardness of the screw rod and hinge 1. The working part shall not be less than 30HRC. 2.4.5 The hardness of the screwdriver body shall not be less than 45HRC. 2.5 Circular tooth frame, die set
2.3.1 The die frame is recommended to be made of forgeable iron or cast aluminum, 2.5.2 The die liner is recommended to be made of 45 or cast. 3 Inspection method
31 Sample extraction
The batch-produced tools shall be sampled and inspected before leaving the factory. 3.1.1 Complete set samples: the size is not less than two sets per batch. 3.1.2 Single piece samples are extracted from the total number of samples. 3.2 Inspection items
3.2. 1 Appearance
Inspect the appearance of each single piece in the complete set of samples. 3.2.1 Fishing
Inspect the accuracy of the single piece sample (except accessories). 3.2.3 Hardness
JT10232.2-2001
Hardness of two single samples (excluding accessories) in the inspection letter. 3.3 Judgment
3.3.1 The test items meet the relevant standards, contracts or product drawings, and the batch of products is qualified. 3.3.1 If one or more items are found to be unqualified, two samples of unqualified items shall be added for inspection. If the requirements are met, the batch of products can be judged to be qualified, and if they are not met, the batch of products can be judged to be unqualified.
4 Marking and packaging
4, Marking
4.1.1 The product code should be marked on a single product (the attachment is not allowed to be marked. High-speed material marking material code (HSS) 4.1.2 The packaging tray should be marked with:
2) the name, address and trademark of the manufacturer or seller; b) the product name, code and standard number:
) the year and month of manufacture.
4.1.3 Mark according to user requirements.
4.2 Packaging
4.2.1 The complete set of products should have a dedicated complete set packaging box, and the packaging box should have a substrate. 4.2.2 The complete set of threaded tools should be treated with rust prevention before packaging. When placed in the tray, the logo should face upwards. The packaging should be tight and can prevent damage during transportation.
4.2.3 The threaded tools in the package should not have any missing parts or misplaced parts.
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