JB/T 53397-1999
Precision roller chains and bush chains — Product quality grading (Internal use)
精密滚子链、套筒链 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 术语 → 4 抽样 → 5 检验规范 → 6 产品质量评分方法 Foreword → 1 Scope → 2 Normative References → 3 Terms → 4 Sampling → 5 Inspection Specifications → 6 Product Quality Scoring Method
Scope
This standard specifies the product quality grading indicators and assessment methods for precision roller chains and bush chains. This standard applies to precision roller chains and bush chains manufactured according to GB/T 1243, GB/T 5269, GB/T 6076, and other roller chains and bush chains with the same structure and similar type dimensions. This standard applies to quality supervision departments conducting regular or irregular supervision sampling inspection on the overall population of products that have passed acceptance.
本标准规定了精密滚子链、套筒链产品质量分等指标及考核办法。本标准适用于按GB/T 1243、GB/T 5269、GB/T 6076 制造的精密滚子链、套筒链及结构相同、型式尺寸相近的其它滚子链、套筒链。本标准适用于质量监督部门定期或不定期对经过验收合格的产品总体实施质量监督抽样检验。
Normative References
Keywords
Application Summary AI generated
Quality supervision authorities use this standard to conduct sampling inspection and grade classification of precision roller chains and bush chains. It helps differentiate between qualified, first-grade, and premium-grade products, ensuring chain quality meets various levels of requirements. By specifying key performance indicators such as fatigue and wear resistance, this standard is important for improving the reliability and service life of chain products.
质量监督部门使用这个标准来对精密滚子链和套筒链进行抽样检验和等级评定。它帮助区分合格品、一等品和优等品，确保链条产品的质量符合不同层次的要求。该标准通过规定疲劳、耐磨等关键性能指标，对提升链条产品的可靠性和使用寿命具有重要意义。
AI Summary AI generated
This standard specifies product quality grading indicators and assessment methods for precision roller chains and bush chains, applicable to chains manufactured according to relevant national standards and similar products. It classifies product quality into three grades: qualified, first-grade, and premium-grade, with additional requirements for first-grade and premium-grade products including joint firmness, flexibility, pitch accuracy, fatigue, and wear resistance. The standard details sampling methods, routine inspection and performance test specifications, and scoring criteria for each item, providing a systematic basis for quality supervision sampling inspection.
本标准规定了精密滚子链和套筒链的产品质量分等指标及考核办法，适用于按相关国标制造的链条及类似产品。标准将产品质量分为合格品、一等品和优等品三个等级，对一等品和优等品增加了联结牢固度、灵活性、节距精度、疲劳和耐磨等性能要求。标准详细规定了抽样方法、常规检验和性能试验规范，以及各项目的评分判定方法，为质量监督部门提供了系统的抽样检验依据。
Key Sentences extracted from text
本标准规定了精密滚子链、套筒链产品质量分等指标及考核办法。
本标准适用于按GB/T 1243、GB/T 5269、GB/T 6076 制造的精密滚子链、套筒链及结构相同、型式尺寸相近的其它滚子链、套筒链。
本标准适用于质量监督部门定期或不定期对经过验收合格的产品总体实施质量监督抽样检验。
对一等品、优等品的技术要求，在合格品的基础上增加：联结牢固度、灵活性、节距精度、铆头质量、扭曲量和外观等常规检验项目及疲劳和耐磨性能试验。
各检验项目评分方法列于表6。
This standard specifies the product quality grading indicators and assessment methods for precision roller chains and bush chains.
This standard applies to precision roller chains and bush chains manufactured according to GB/T 1243, GB/T 5269, GB/T 6076, and other roller chains and bush chains with the same structure and similar type dimensions.
This standard applies to quality supervision departments conducting regular or irregular supervision sampling inspection on the overall population of products that have passed acceptance.
For first-grade and premium-grade products, on the basis of qualified products, the following are added: routine inspection items such as joint firmness, flexibility, pitch accuracy, rivet head quality, twist amount, and appearance, as well as fatigue and wear resistance performance tests.
The scoring method for each inspection item is listed in Table 6.
Standard Timeline
Changes from replaced version:
- 对合格品的技术要求与相应的产品标准所规定的内容相一致。
- 对一等品、优等品的技术要求，在合格品的基础上增加：联结牢固度、灵活性、节距精度、铆头质量、扭曲量和外观等常规检验项目及疲劳和耐磨性能试验。
- The technical requirements for qualified products are consistent with the contents specified in the corresponding product standards.
- For first-grade and premium-grade products, on the basis of qualified products, the following are added: routine inspection items such as joint firmness, flexibility, pitch accuracy, rivet head quality, twist amount, and appearance, as well as fatigue and wear resistance performance tests.