JB/T 53342-1999
Powder Metallurgy Slide Plate for Pantograph of Electric Locomotive - Product Quality Grading
电力机车受电弓用粉末冶金滑板 产品质量分等
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 检测规则 Foreword → 1 Scope → 2 Normative References → 3 Quality Grading Principle → 4 Quality Grade Indicators → 5 Test Methods → 6 Inspection Rules
Scope
This standard specifies the product quality grade levels for powder metallurgy slide plates for pantographs of electric locomotives. This standard is applicable to the quality grade assessment of powder metallurgy slide plates (iron-based or copper-based) for pantographs of electric locomotives using steel-aluminum or as contact wires in 25 kV single-phase AC electrified railway catenary systems, in quality assessment, enterprise upgrading, and product excellence creation. It can also serve as a basis for high-quality and high-price products.
本标准规定了电力机车受电弓用粉末冶金滑板产品质量等级水平。本标准适用于工频单项交流25 kV 电气化铁路接触网采用钢铝或作为接触导线的电力机车受电弓用粉末冶金滑板（铁基或铜基）在质量考核、企业升级和产品创优中的产品质量等级评定。亦可作为产品优质优价的依据。
Normative References
Keywords
Application Summary AI generated
Manufacturers of electric locomotives and railway operators use this standard to grade the quality of pantograph slide plates. It helps enterprises control product quality during production and provides a basis for product excellence and premium pricing. This standard is crucial for ensuring the reliability and safety of electrified railway catenary systems.
电力机车制造企业和铁路运营单位使用这个标准来评定受电弓滑板的质量等级。它帮助企业在生产过程中控制产品质量，并为产品创优和优质优价提供依据。该标准对于确保电气化铁路接触网系统的可靠性和安全性至关重要。
AI Summary AI generated
This standard specifies the product quality grading requirements for powder metallurgy slide plates (iron-based or copper-based) used in pantographs of electric locomotives, classifying products into three grades: qualified, first-class, and premium. It details indicators for key items (e.g., impact toughness), major items (e.g., hardness, tensile strength, resistivity, service life), and general items (e.g., surface quality, internal quality, dimensional accuracy), along with corresponding test methods and inspection rules. The standard is applicable to quality assessment, enterprise upgrading, and product excellence, providing a unified basis for product quality evaluation.
本标准规定了电力机车受电弓用粉末冶金滑板（铁基或铜基）的产品质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准详细列出了关键项目（如冲击韧度）、主要项目（如硬度、抗拉强度、电阻率、使用寿命）和一般项目（如表面质量、内部质量、尺寸精度）的指标，并规定了相应的试验方法和检测规则。该标准适用于质量考核、企业升级和产品创优，为产品质量评定提供了统一依据。
Key Sentences extracted from text
本标准规定了电力机车受电弓用粉末冶金滑板产品质量等级水平。
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。
关键项目必须全部达到该等级的各项规定指标。
优等品按规定的项目指标，项次合格率必须达到95%，但不合格项次指标不得低于一等品的指标，且在同一项目中不合格项次不准多于2个。
冲击韧度J/cm2 ≥2.94（铁基合格品）。
This standard specifies the product quality grade levels for powder metallurgy slide plates for pantographs of electric locomotives.
Products are classified into qualified, first-class, and premium grades based on quality level and use value, on the basis of compliance with current standards.
All key items must fully meet the specified indicators for that grade.
For premium grade, the item pass rate for specified project indicators must reach 95%, but the indicators of unqualified items must not be lower than those of first-class grade, and no more than 2 unqualified items are allowed in the same project.
Impact toughness J/cm2 ≥2.94 (iron-based qualified grade).
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.