This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of inspection hammers. This standard applies to inspection hammers used for the inspection of railway and mining locomotives and equipment. QB/T 1290.5-1991 Steel Hammer Inspection Hammer QB/T1290.5-1991 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
1 Subject Content and Applicable Scope
Inspection Hammer
QB/F 1290.5-1991
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of inspection hammers. This standard applies to inspection hammers used for the inspection of railway and mining locomotives and equipment. 2 Reference Standards
GB/T5305 Packaging, marking, transportation and storage of hand tools GB/T13473 General Technical Conditions for Steel Hammers
3 Product Classification
3.1 Type
The types of inspection hammers are divided into type A and type B according to the shape of the hammer body, as shown in Figures 1 and 2. B
Figure 1 Type A inspection hammer
Approved by the Ministry of Light Industry of the People's Republic of China on October 17, 1991 480
Implementation on June 1, 1992
3.2 Basic dimensions
QB/T1290.5—1991
Figure 2 Type B inspection hammer
The basic dimensions of the inspection hammer are in accordance with the provisions of Table 1 and Table 2. Table 1 Basic dimensions of Type A inspection hammer
Specifications kg
Basic dimensions
Basic dimensions
3.3 Product marking
Basic dimensions of Type B inspection hammer
The marking of the inspection hammer consists of the product name, specification, type code and standard number. Example: The rust mark of 0.25kg Type A inspection hammer is: Inspection hammer 0.25AQB/T1290.5
4 Technical requirements
4.1 Heat treatment requirements
The heat treatment requirements of the hammer body of the inspection hammer shall comply with the following provisions. 4.1.1 The heat treatment hardness of both ends of the hammer body is HRC 46~52. 4.1.2 The heat treatment length of the hammer body tip of the Type A inspection hammer shall not be less than 15mm. 4.2 Surface treatmentwwW.bzxz.Net
The surface treatment of the inspection hammer shall comply with the following provisions. 4.2.1 The surface of the hammer body of the inspection hammer can be painted or chrome-plated. 4.2.2 The plating of the chrome-plated hammer body should be evenly coated, without missing plating, peeling, etc. 4.3 Other requirements
Other requirements for the inspection chain shall comply with the provisions of Chapter 4 of GB/T 13473. ±0.75
Hammer hole number
Hammer hole number
Test method
QB/T1290.5~—1991
The test method for rust inspection shall be carried out in accordance with the provisions of Chapter 5 of GB/T13473. 6
Inspection rules
The inspection rules for inspection hammers shall be in accordance with the provisions of Chapter 6 of GB/T 13473. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of inspection hammers shall be in accordance with the provisions of GB/T5305. Additional remarks:
This standard was proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Tool Hardware Standardization Center. This standard was drafted by the Steel Hammer Industry Standard Drafting Working Group. The main drafters of this standard are Lin Meide, Jing Guofan, Liu Yongbao and Chi Renheng. From the date of implementation of this standard, the former Light Industry Ministry Standard SG256-1982 "Inspection Hammer" shall be invalidated.
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