JB/T 53327-1999
Product Quality Grading for Iron-Based Powder Metallurgy Brake Friction Linings for Medium Trucks (Internal Use)
中型载重汽车铁基粉末冶金制动摩擦片产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量分等原则 → 4 质量等级指标 → 5 试验方法 → 6 检验规则 Foreword → 1 Scope → 2 Normative References → 3 Quality Grading Principles → 4 Quality Grade Indicators → 5 Test Methods → 6 Inspection Rules
Scope
This standard specifies the quality grade levels of iron-based powder metallurgy brake friction linings for medium trucks. This standard is applicable to the quality grade assessment of iron-based powder metallurgy brake friction linings for medium trucks in quality evaluation, enterprise upgrading, and excellence creation. It may also serve as a basis for high-quality and high-price products.
本标准规定了中型载重汽车铁基粉末冶金制动摩擦片产品质量等级水平。本标准适用于中型载重汽车铁基粉末冶金制动摩擦片产品在质量考核、企业升级和创优中的质量等级评定。亦可作为产品优质优价的依据。
Normative References
Keywords
Application Summary AI generated
Manufacturers, quality inspection agencies, and users of medium truck brake friction linings use this standard. It is employed to assess the quality grade of iron-based powder metallurgy brake friction linings, supporting quality evaluation, enterprise upgrading, and excellence initiatives. This standard provides a basis for premium pricing of high-quality products and is crucial for improving product quality in the industry.
该标准由中型载重汽车制动摩擦片的生产企业、质量检验机构和用户使用。用于对铁基粉末冶金制动摩擦片进行质量等级评定，帮助企业进行质量考核、升级和创优。该标准为产品优质优价提供了依据，对提升行业产品质量水平具有重要意义。
AI Summary AI generated
This standard JB/T 53327-1999 specifies quality grading requirements for iron-based powder metallurgy brake friction linings for medium trucks, classifying products into three grades: qualified, first-grade, and premium. It covers key indicators such as dynamic friction coefficient, wear rate, shear strength, hardness, density, as well as dimensional accuracy, appearance, and packaging. It is applicable for quality evaluation, enterprise upgrading, and excellence assessment, providing a basis for premium pricing of high-quality products.
本标准JB/T 53327-1999规定了中型载重汽车铁基粉末冶金制动摩擦片的质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准涵盖动摩擦系数、磨损率、剪切强度、硬度、密度等关键指标，以及尺寸精度、外观和包装要求。适用于质量考核、企业升级和创优评定，为产品优质优价提供依据。
Key Sentences extracted from text
本标准规定了中型载重汽车铁基粉末冶金制动摩擦片产品质量等级水平。
产品在符合现行标准的基础上，根据质量水平和使用价值分为合格品、一等品和优等品三个等级。
产品质量等级根据性能、精度、外观和包装等方面评定。
动摩擦系数：合格品≥0.28，一等品≥0.30，优等品≥0.32。
摩擦材料层磨损率：合格品≤5.1×10–7 cm3/J，一等品≤3.1×10–7 cm3/J，优等品≤1.0×10–7 cm3/J。
This standard specifies the quality grade levels of iron-based powder metallurgy brake friction linings for medium trucks.
Products are divided into three grades: qualified product, first-grade product, and premium product, based on quality level and use value, while conforming to current standards.
Product quality grades are assessed based on performance, precision, appearance, and packaging.
Dynamic friction coefficient: qualified product ≥0.28, first-grade product ≥0.30, premium product ≥0.32.
Wear rate of friction material layer: qualified product ≤5.1×10–7 cm3/J, first-grade product ≤3.1×10–7 cm3/J, premium product ≤1.0×10–7 cm3/J.
Standard Timeline
Changes from replaced version:
- 对原标准作了编辑性修改，主要技术内容没有变化
- Editorial modifications were made to the original standard, with no changes to the main technical content.