JB/T 51105-1999
Internal Combustion Engines - Piston Rings - Product Quality Grading (Internal Use)
内燃机 活塞环 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量指标 → 4 检验方法 → 5 抽样检查和评定 Foreword → 1 Scope → 2 Normative References → 3 Quality Indicators → 4 Inspection Methods → 5 Sampling Inspection and Evaluation
Scope
This standard specifies the quality indicators, inspection methods, sampling inspection and grade evaluation rules for internal combustion engine piston ring products. This standard is applicable to the quality grade inspection and evaluation of reciprocating internal combustion engine piston rings (hereinafter referred to as piston rings) with cylinder diameters less than or equal to 200 mm.
本标准规定了内燃机活塞环产品的质量指标、检验方法、抽样检查和等级评定规则。本标准适用于气缸直径小于或等于200 mm 的往复式内燃机活塞环（以下简称活塞环）产品的质量等级检验和评定。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies of internal combustion engines use this standard to classify and inspect piston ring products into quality grades. It ensures reliability and durability by specifying key indicators such as metallographic structure, hardness, and elastic force. This standard is important for maintaining stable engine performance and reducing failure rates.
内燃机制造商和质检机构使用本标准来对活塞环产品进行质量等级划分和检验。它通过规定金相组织、硬度、弹力等关键指标，确保活塞环的可靠性和耐久性。该标准对于保证内燃机性能稳定、降低故障率具有重要意义。
AI Summary AI generated
This standard specifies quality grading requirements for internal combustion engine piston rings, covering metallographic structure, thermal stability, hardness, elastic force, bending strength, surface coating, and other quality indicators. It defines corresponding inspection methods and sampling evaluation rules. Applicable to reciprocating engine piston rings with cylinder diameters ≤200mm, the standard classifies products into three grades: qualified, first-class, and superior, providing a unified basis for quality control and grade assessment.
本标准规定了内燃机活塞环产品的质量分等要求，包括金相组织、热稳定性、硬度、弹力、抗弯强度、表面镀层等多项质量指标，并明确了相应的检验方法和抽样评定规则。标准适用于缸径≤200mm的往复式内燃机活塞环，将产品分为合格品、一等品和优等品三个等级，为活塞环的质量控制和等级评定提供了统一依据。
Key Sentences extracted from text
本标准规定了内燃机活塞环产品的质量指标、检验方法、抽样检查和等级评定规则。
本标准适用于气缸直径小于或等于200 mm 的往复式内燃机活塞环（以下简称活塞环）产品的质量等级检验和评定。
活塞环产品应按经规定程序批准的产品图样及技术文件制造。
合金铸铁单体铸造活塞环的金相组织按JB/T 6016 规定，并应符合表1 的规定。
抽样检查规则及抽样方案按GB/T 2828 的规定。
This standard specifies the quality indicators, inspection methods, sampling inspection and grade evaluation rules for internal combustion engine piston ring products.
This standard is applicable to the quality grade inspection and evaluation of reciprocating internal combustion engine piston rings (hereinafter referred to as piston rings) with cylinder diameters less than or equal to 200 mm.
Piston ring products shall be manufactured in accordance with product drawings and technical documents approved through specified procedures.
The metallographic structure of alloy cast iron single cast piston rings shall comply with JB/T 6016 and the provisions of Table 1.
Sampling inspection rules and sampling plans shall comply with the provisions of GB/T 2828.
Standard Timeline
Changes from replaced version:
- 增加了钢带组合油环的内容
- Added content for steel strip combined oil rings