T/ZJGS 06-2018 The technical specifications for the appearance quality of a hook and loop lock

Scope

Scope: This standard specifies the terms and definitions of the appearance quality of padlocks, product specifications classification, technical requirements, test methods, and inspection rules. This standard applies to padlocks manufactured in accordance with the QB/T 1918 standard. Main technical content: 5.1 General requirements 5.1.1 When the padlock is in the open or closed state, the lock beam should be upright. The deviation between the lock beam and the lock body when closed should not exceed 3°. 5.1.2 The lock body, lock beam, and key patterns should be clear, and their positions should comply with the design requirements. 5.1.3 The lock body's brushed texture should be clear, and its direction should comply with the design requirements. 5.1.4 The lock body's chamfer should be uniform and consistent, and its shape should comply with the design requirements. 5.1.5 The padlock's surface should not have obvious concave pits, uneven marks, burn marks, watermarks, particles, fixture marks, rod marks, slag inclusions, overflows, burrs, or sharp edges. 5.1.6 The coating surface should have uniform color and no obvious bubbling or peeling. 5.1.7 The exposed surface of electroplated parts should have a dense coating with uniform color, and no obvious bubbling, peeling, or exposed base metal. 5.2 Appearance defects The number of appearance defects in the product refers to the cumulative number of defects in all items listed in the table. The number of appearance defects in the lock body should not be concentrated on one side. 5.2.1 The exposed part of the lock beam when it is open should not have obvious pitting or hard stamping defects. Its area and number of defects should comply with the requirements specified in Table 1. 5.2.2 The surface of the lock body should not have obvious sand holes, bumps, or hard stamping defects. Its area and number of defects should comply with the requirements specified in Table 2. 5.2.3 The key should no

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