QB/T 2441.1-1999 Cutting pliers Diagonal cutting pliers QB/T2441.1-1999 Standard download decompression password: www.bzxz.net

QB/T2441.1-1999
This standard is based on the requirements of the State Administration of Quality and Technical Supervision to clean up and rectify national standards. The original national standard GB6294.1.1986 "Shearing pliers and diagonal pliers" was changed to an industry standard (this standard was issued by the State Light Industry Bureau [19991112] and converted to QB/T3852.1-1999, the content is the same as before). This standard is based on the original national standard GB6294.1-1986, and refers to the international standard ISO5749:1988 "Twist and cut pliers - diagonal pliers dimensions and test values", and cancels the original national standard "A" and "B" classification of the bending strength and shear force of the pliers handle.
This standard will replace GB6294.1-1986 from the date of implementation. This standard is proposed by the Industry Management Department of the State Bureau of Light Industry. This standard is under the jurisdiction of the National Tool Hardware Standardization Center. The responsible drafting unit of this standard is Shanghai Tool Industry Research Institute; participating drafting units are Beijing Telecom Tool Factory, Zhejiang Wanda. Factory Tool Co., Ltd., etc.
The main drafters of this standard are Lin Meide, Wang Rujie, and Ding Yingming. 710
Light Industry Standard of the People's Republic of China
Cut pliers
Diagonal cutting pliers
This standard refers to the international standard ISO5749:1988 "Twist pliers and cutters-1 Scope
This standard specifies the product classification, technical requirements and test methods of diagonal cutting pliers. QB/T 2441.1-1999
Replaces QB/T3852.1-1999
-Dimensions and test values ​​of diagonal cutting pliers".
This standard applies to diagonal cutting pliers. When there are special requirements for the product, it is not limited by this standard. Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T6290—1999 General technical conditions for twist pliers and shearing pliers GB/T6291--1999 Test methods for twist pliers and shearing pliers 3 Product classification
3.1 Type
The type of diagonal cutting pliers is shown in Figure 1.
Type of diagonal cutting pliers
3.2 Basic dimensions
The basic dimensions of diagonal cutting pliers are specified in Table 1.
Approved by the State Bureau of Light Industry on May 6, 1999
Implemented on December 1, 1999
125±6
140±7
160±8
180±9
200±10
QB/T 2441.1—1999
Table 1 Basic dimensions
Note: If the user has other requirements for the dimensions, they can be determined by agreement. 3.3 Marking example
The marking of the product should consist of the product name, specification and standard number. Marking example of 200mm diagonal pliers:
Diaagonal pliers 200mm
4 Technical requirements
4.1 Bending strength
QB/T2441.1---1999.
The bending strength of the diagonal cutting pliers must comply with the provisions of Table 2. Table 2 Bending strength
4.2 Shearing performance
4.2.1 The shearing performance of the diagonal cutting pliers must comply with the provisions of Table 3. Table 3 Shearing performance
4.2.2 The diagonal cutting pliers should be able to smoothly cut non-ferrous metal wires. L
4.3 Other technical requirements for diagonal cutting pliers shall comply with the provisions of GB/T6290. 5 Test methods
The test methods for diagonal cutting pliers shall comply with the provisions of GB/T6291. 712
Die He Fwww.bzxz.net
True diameter of test wire D
T rmax
Permanent deformation Smux
Maximum shear force F
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