QB/T 2564.2-2002 Screwdrivers Slotted screwdrivers Screwdrivers QB/T2564.2-2002 Standard download decompression password: www.bzxz.net

ICS 25.140. 30
Classification number: J47
Preparation number: 10862-2002
Light Industry Standard of the People's Republic of China
QR/T2564.2—2002
QH13861—1909
Screwdrivers
Slotted screwdrivers and screws
Serewdrivers-Serewdrivcr blades for slntted hcad scrcws(1s 2380-1:997,Assembly: tools for screws and nutsScrewdrivers for slotted-head screws-Pare 1 :Tipsforhand- and machine-operated 2002-09-21 issued
State Economic and Trade Commission of the People's Republic of China implemented on December 1, 2002
QB/T2564.2-2002
This standard is a revision of the original Heze 6B (0637-1989 (single-handled flip-flop mold H spin village) (this standard was issued by the State Economic and Trade Commission) No. 112 and was converted into a city standard Q3861-1999, with changes in the internal dining). This standard is based on the international standard 1502381:1997 screw and nut assembly tools - slotted screws - Part 1: For use with and in the working parts of screw tools (English version). The load-bearing capacity of this standard is different from that of IS02380-1:1997. Please refer to the following: some expressions applicable to international standards are changed to expressions applicable to international standards: [4.3 of ISO2380-1:1997 is not included in this standard, and the following provisions are included in GB10635, and the internal rate is the same. This standard is QB386! 1900 characters The ratio of the screw head to the rod needs to be changed, and the type of the screw is adjusted, and the type of the machine screw lift is determined (light 3. [:.-The picture is marked! (See 3.3
A book size and technical requirements are all adopted from the international standard 1S02380:190 of the United States. This standard is proposed by the China Light Industry Association.
Standard of the National Tool Association Standardization Center! ! This standard is drafted by the Shanghai Tool Industry International System Institute, and the Ningbo Xingfu Tool Company is drafted. The drafters of this standard are: Lin Meide, Tai Shoukang, Chen Cunli . From the date of implementation, this standard can be replaced by the industrial standard Q3%1-19 one-character post screwdriver screw rod "
QR/T2534.2-2002
1 National Standard
Operating screws, one-character slot screws, screw nose screws
This standard specifies the product classification and requirements of the screw rod for use in the machine: This standard is applicable to the three-character screwdriver screw for use in the machine (hereinafter referred to as "English"). 2 Normative reference documents
The following documents are introduced in the summer of 2006 and become the terms of this standard through the introduction of the water standard. For all referenced documents with a period of 2, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement on the revision of the standard shall use the latest versions of these documents. For all referenced documents without a period of 2, their revised versions are applicable to this standard: GBT106352003 General Technical Specifications for Tools 3 Product Classification
3.1 Type
The rod is divided into three types: A, B and C according to its use and head shape, see Figures 1 and 2. Among them, Type C is a machine rod. 10 ±
Figure 1 4 type standard
3.2 Basic dimensions
Figure 2 Type A and Type B rotary rods
The basic dimensions of Type A and Type B rotary rods shall be as specified in Table 1, and the basic dimensions of Type C rotary rods shall be as specified in Table 2. Nominal thickness
Nominal width
1 Basic dimensions of Type A and Type B rotary rods
Type A and Type B
Nominal width
Basic dimensions of Type A and Type B rotary rods
Basic dimensions of Type A and Type B rotary rods
QB/T 2564. 2 2002
QB/T2564.2—2002
3.3 Marking example
The marking of the spiral is composed of the name, nominal width, nominal width, type code and special number, indicating: the nominal width is 12m: the nominal width is 8m, the mark of A-type steel bar is 1.2×.8AQBT2564.2·2k24, the hardness is not less than 1.50HRC, and the hardness of B-type steel bar is not less than 50HRC within a length of at least one times the nominal width, starting from the end of the work. For C-type steel bar, the hardness is not less than 56HRC within the entire length. 4.2 Torque 4.2.1 The minimum test torque M of type AB rotary rod is as specified in Table 3. Table 3 The minimum test torque of type A and type B rotary rods is as follows: Standard test torque mn Nominal actual test torque Mmn Note: The minimum test torque is the nominal actual test torque of the following special test equipment (). In the calculation formula: m is the nominal actual test torque of the part, m is the nominal actual test torque. Note: mm.
4.2.2 The test torque of the seven types of support is shown in Table 4, 0.6×3
Table 4C type rod test torque
mm thickness×nominal length 5
nmXmnt
minus Kaishi M, mu
nominal net widthbZxz.net
Wu test row M, min
11.2-6. 5
Let: small test single short stand under the special experience (2) ratio: 0.×4
-2i2ba
4-, the original length of the working part, mm
——the nominal length of the working part. m.
4.3 Other requirements
Other pulling techniques for changing poles are in accordance with the provisions of CBT10635-2003, QB/T2564.22002
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