JB/T 54872-1999
Conical Countersinks - Product Quality Grading
锥面锪钻 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 AQL 的指定值 → 4 RQL 的指定值 → 5 不合格分类及分组 → 6 寿命试验 Foreword → 1 Scope → 2 Normative References → 3 Specified AQL Values → 4 Specified RQL Values → 5 Classification and Grouping of Nonconformities → 6 Life Test
Scope
This standard specifies the AQL values for quality grade evaluation, RQL values for periodic stability assessment, classification of nonconformities, and life test for conical countersinks when conducting quality grade evaluation in accordance with JB/T 54854-1999 'Cutting Tools - General Rules for Product Quality Grading'. This standard is applicable to the quality grade evaluation and periodic stability assessment of conical countersinks produced in batches according to GB/T 1143, GB/T 4258, GB/T 4259, GB/T 4263~4265.
本标准规定了锥面锪钻在依据JB/T 54854—1999《刀具 产品质量分等通则》进行质量等级评定时的AQL 值、周期稳定性考核时的RQL 值、不合格分类及寿命试验。本标准适用于按GB/T 1143、GB/T 4258、GB/T 4259、GB/T 4263~4265 成批生产的锥面锪钻的质量等级评定和周期稳定性考核。
Normative References
Keywords
Application Summary AI generated
Tool manufacturers and quality inspection departments use this standard to evaluate the quality grade and periodic stability of conical countersinks. It defines AQL values, RQL values, and nonconformity classifications to ensure products meet different quality levels (qualified, first-class, premium). This standard is important for maintaining manufacturing quality and user reliability of conical countersinks.
刀具制造企业和质量检验部门使用该标准，对锥面锪钻进行质量等级评定和周期稳定性考核。该标准通过规定AQL值、RQL值和不合格分类，确保产品符合不同等级（合格品、一等品、优等品）的质量要求。它对于保证锥面锪钻的制造质量和用户使用可靠性具有重要意义。
AI Summary AI generated
This standard specifies the quality grading method for conical countersinks, including AQL values, RQL values, nonconformity classification, and life test. It applies to batch-produced conical countersinks conforming to relevant national standards. Products are classified into three grades: qualified, first-class, and premium, each with corresponding AQL and RQL values. Nonconformities are divided into Class B (three groups) and Class C, covering cracks, surface roughness, dimensional tolerances, hardness, etc. Life test is not specified at present.
本标准规定了锥面锪钻的质量等级评定方法，包括AQL值、RQL值、不合格分类及寿命试验。适用于按相关国家标准成批生产的锥面锪钻。标准将产品分为合格品、一等品和优等品三个等级，分别对应不同的AQL和RQL值。不合格项目分为B类（含三组）和C类，涵盖裂纹、表面粗糙度、尺寸公差、硬度等。寿命试验暂不规定。
Key Sentences extracted from text
本标准规定了锥面锪钻在依据JB/T 54854—1999《刀具 产品质量分等通则》进行质量等级评定时的AQL 值、周期稳定性考核时的RQL 值、不合格分类及寿命试验。
本标准适用于按GB/T 1143、GB/T 4258、GB/T 4259、GB/T 4263~4265 成批生产的锥面锪钻的质量等级评定和周期稳定性考核。
AQL 的指定值按表1。
RQL 的指定值按表2。
锥面锪钻暂不规定寿命试验。
This standard specifies the AQL values for quality grade evaluation, RQL values for periodic stability assessment, classification of nonconformities, and life test for conical countersinks when conducting quality grade evaluation in accordance with JB/T 54854-1999 'Cutting Tools - General Rules for Product Quality Grading'.
This standard is applicable to the quality grade evaluation and periodic stability assessment of conical countersinks produced in batches according to GB/T 1143, GB/T 4258, GB/T 4259, GB/T 4263~4265.
Specified AQL values are given in Table 1.
Specified RQL values are given in Table 2.
Life test for conical countersinks is not specified at present.
Standard Timeline
Changes from replaced version:
- 本标准与JB/T 54872—93 的技术内容一致，仅按有关规定重新进行了编辑。
- The technical content of this standard is consistent with JB/T 54872-93, only re-edited according to relevant regulations.