T/WJS 4-2021 Active Group standards

T/WJS 4-2021 Planer saw

Publish Date: 2021-11-11 Implement Date: 2021-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/WJS 4-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Woodworking machine tools and machine tools

ICS Name: \nSaw

Publish Date: 2021-11-11

Implement Date: 2021-12-01

Scope

Main technical content: 5. Requirements 5.1 Basic Dimensions The basic dimensions of the product are shown in Table 1 (omitted here). 5.2 Serrated Shape and Parameters of Hand Saws 5.2.1 The serrated shape of the hand saw is shown in Figure 2, and the serrated parameters are listed in Table 2 (omitted here). 5.2.2 The serrated shape of the hand saw is shown in Figure 3, and the serrated parameters are listed in Table 3 (omitted here). 5.3 Materials 5.3.1 The saw blade shall be made of 65Mn or 50 cold-rolled steel strip in accordance with the requirements of GB/T 699 and YB/T 5058, or materials with equivalent or better performance. 5.3.2 The handle shall be made of metal, hardwood, engineering plastics, or other materials that meet the requirements of relevant standards. 5.4 Hardness The hardness of the saw blade shall not be less than 74 HRA. 5.5 Bending Strength After the bending test, the saw blade shall be able to recover to its original state. 5.6 Shape Tolerance The linearity error of the saw blade shall comply with the requirements of Table 4 (omitted here). 5.7 Surface Roughness The surface roughness of the saw blade shall be Ra≤3.2 μm, and the surface roughness of the saw blade after grinding shall be Ra≤1.6 μm. 5.8 Serrated Teeth 5.8.1 The serrated teeth shall be sharp and complete in shape, and the serrated part of the saw blade shall be well processed. There shall be no defects such as cracks in the root of the teeth that affect the performance. 5.8.2 The serrated teeth after serration shall be complete in shape, and there shall be no obvious asymmetry in the serrated teeth that affect the performance. 5.9 Assembly Quality The assembly connection between the saw blade and the handle shall be firm and reliable, without looseness, skewing, or other defects that affect the function. 5.10 Surface Quality 5.10.1 The surface of the saw blade shall not have defects such as black spots, rust spots, or cracks. The o