This standard specifies the product classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of bolt cutters. This standard is applicable to bolt cutters for cutting general carbon structural steel wire, round steel, cable and hard copper wire. QB/T 2206-1996 Bolt cutters QB/T2206-1996 Standard download decompression password: www.bzxz.net

QB/T 2206—1996
This standard deletes the material requirements for the parts of the bolt cutters. The bolt cutters are increased from 6 to 7 specifications (350mm specifications are added). The limit deviation values ​​and load test values ​​of the blade thickness t and the hole center distance g of some specifications have been appropriately adjusted. This standard is proposed by the Quality Standards Department of the China Light Industry Association. This standard is under the jurisdiction of the National Tool Hardware Standardization Center. The drafting units of this standard are: Shanghai Wood Drill Factory, Tianjin Jinheng Tools Co., Ltd., Beijing Mentougou Hardware Tool Factory, and Shanghai Tool Industry Research Institute.
The main drafters of this standard are: Zhu Zuxian, Zhang Yunzhen, Lu Xialing, Fang Jixing, and Liu Shanli. 560
1 Scope
Light Industry Industry Standard of the People's Republic of China
QB/T2206-1996
This standard specifies the product classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of bolt cutters. This standard applies to bolt cutters for cutting general carbon structural steel wires, round steel, cables and hard wires. 2 Referenced 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/T 230--1991
Metallic Rockwell hardness test method
GB/T 699--1988
Technical conditions for high-quality carbon structural steel
GB/T 2828--1987
Batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Hand tool packaging, marking, transportation and storage GB/T 5305--1985
GB/T 6388--1986
3 Product classification
Transport packaging, shipping and receiving marking
3.1 The types of bolt cutters are divided into single-arm type, double-arm type and non-arm type according to the adjustment structure. The clamp handle can be a pipe handle or a malleable cast iron handle. 3.2 The basic dimensions and tolerances shall comply with the provisions of Figure 1 and Table 1. BB
1—bolt; 2—blade; 3—pressure plate; 4—center axis; 5—connecting armFigure 1 Bolt cutters
Approved by China Light Industry General Association on March 22, 1996
Implemented on December 1, 1996
Technical requirements
Basic dimensions and limit deviations
4.1 Materials and hardness
QB/T2206—1996
Basic dimensions
Limit deviations
Basic dimensions
Limit deviations
4.1.1 The materials of each component shall comply with the requirements of this standard for bolt cutters. Quality requirements for wire cutters. 4.1.2 The hardness of the blade edge shall not be less than HRC53. 4.1.3 The hardness of bolts, pressure plates and center shafts shall be HRC33~40. 4.2 Surface quality
4.2.1 The surfaces of each component shall not have cracks, rust, harmful scratches, burrs and other defects. Basic size
Limit deviation
4.2.2 All parts that undergo surface treatment shall have uniform color and shall not have obvious spots, pitting, omissions, bubbles, delamination and flow marks. 4.2.3 The surface roughness R of the two bevels of the blade edge shall not be greater than 3.2um, and the surface roughness of the remaining cutting parts of the blade shall not be greater than 3.2um. R. Not more than 6.3um.
4.3 Performance in use
4.3.1 After the wire cutters cut the test materials specified in Table 2, the blades should not have chipping, curling, collapse, or cracks, and the parts should not have obvious deformation.
Maximum shearing diameter, mm
Shearing test material
Load test
Maximum load, N
Test material
45 steel specified in GB/T699
20~30 steel specified in GB/T699
Hardness is 28~30HRC
Tensile strength is 4 12～490MPa
When the bolt cutter is used for load test with the specified test material, the maximum load of the sheared test material shall not exceed the provisions of Table 2. 1050
3 The bolt cutter must have the function of adjusting the edge gap. After the shear test, the adjusted edge gap shall comply with the provisions of Table 3. 4.3.3
Edge gap
Test method
Basic dimensions are checked with universal measuring tools
Hardness test is in accordance with GB/T230. The blade edge hardness test area is 3～5mm away from the edge. If there is any point that does not meet 5.2
QB/T 2206-- 1996
The standard can be retested at a point next to it. If it still fails, it is considered unqualified. 5.3 Visual inspection of surface quality, surface roughness is checked against the surface roughness sample. 5.4 Shear test and load test are carried out on a special testing machine (see Appendix A) according to the method shown in Figure 2 and the values ​​specified in Table 2. 5.5 The adjusted edge clearance is measured with a feeler gauge. Load F
Midpoint of blade lengthbzxZ.net
6 Inspection rules
6.1 Products can only leave the factory after passing the inspection and accompanied by a product certificate. 6.2 Delivery inspection is carried out according to the secondary sampling plan specified in GB/T2828. The unqualified classification, inspection items, qualified quality level AQI (number of unqualified products per 100 units) and inspection level (IL) are as specified in Table 4. Table 4
Classification of non-conformity
Inspection items
Edge hardness
Shear and load test
Basic dimensions
Surface quality
Edge clearance
Part hardness
Qualified quality level AQL
6.3 Products rejected after inspection may be resubmitted for inspection after classification or repair by the manufacturer. 7 Marking, packaging, transportation, storage
7.1 The marking, packaging, transportation and storage of bolt cutters shall comply with the provisions of GB/T5305. 7.2 The marking of receiving and shipping shall comply with the provisions of GB/T6388. Inspection Level I
A1 Wire Cutter Test and Inspection Machine
QB/T2206—1996
Appendix A
(Suggested Appendix)
Wire Cutter Test and Inspection Machine
A1.1 The structural principle of the wire cutter test and inspection machine is shown in Figure A1. A1.2 The test accuracy of the wire cutter test and inspection machine is 5%. Shear force display instrument
(Unit: N)
Wire Cutter Test and Inspection Machine
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