JB/T 58350-1999
Specification for Reliability Assessment of Pneumatic Cylinders
气缸可靠性考核规范
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 定义 → 4 考核要求 → 5 抽样 → 6 试验条件和方法 → 7 判定规则 → 附录A Foreword → 1 Scope → 2 Normative References → 3 Definitions → 4 Assessment Requirements → 5 Sampling → 6 Test Conditions and Methods → 7 Judgment Rules → Annex A
Scope
This standard specifies the reliability assessment evaluation indicators, verification test methods and judgment rules for ordinary single-rod double-acting piston cylinders. This standard is applicable to the reliability assessment of ordinary single-rod double-acting cylinders with a bore diameter of 32~320 mm using compressed air as the working medium.
本标准规定了普通单杆双作用活塞式气缸的可靠性考核评定指标，验证试验方法和判定规则。本标准适用于以压缩空气为工作介质，缸径为32~320 mm 的普通单杆双作用气缸的可靠性考核。
Normative References
Keywords
Application Summary AI generated
Cylinder manufacturers and quality inspection agencies use this standard to assess the reliability of ordinary single-rod double-acting piston cylinders. Through specified test methods and judgment rules, the lifespan and failure probability of cylinders under specific conditions can be evaluated. This standard is important for ensuring product quality and improving equipment operational safety.
气缸制造商和质检机构使用本标准来考核普通单杆双作用活塞式气缸的可靠性。通过规定的试验方法和判定规则，可以评估气缸在特定条件下的寿命和失效概率。该标准对于确保气缸产品质量、提高设备运行安全性具有重要意义。
AI Summary AI generated
This standard specifies reliability assessment requirements for ordinary single-rod double-acting pneumatic cylinders, using a reliable life of 300 km at 0.9 reliability and a mean life of 540 km as indicators. The test adopts a non-replacement timed censoring method, with allowable failure numbers determined by sample size and censoring mileage. Failure modes such as severe wear, leakage, and output force reduction are defined. Sampling methods and test conditions are specified. Judgment rules are based on whether the number of failures exceeds the allowable limit.
本标准规定了普通单杆双作用活塞式气缸的可靠性考核要求，包括以可靠度0.9对应的可靠寿命（300 km）和平均寿命（540 km）作为考核指标。试验采用无替换定时截尾方式，根据样品数量和截尾里程确定允许失效数。标准还定义了失效模式，如严重磨损、泄漏、输出力下降等，并规定了抽样方法和试验条件。判定规则基于失效数是否超过允许值。
Key Sentences extracted from text
本标准规定了普通单杆双作用活塞式气缸的可靠性考核评定指标，验证试验方法和判定规则。
以可靠度为0.9 时的可靠寿命（TR）作为气缸的可靠性考核指标。
试验采用无替换定时截尾方式。
受试样品在不同的试验截尾里程下，其允许失效数作为判定指标。
试验至截尾里程，若失效未超过表1 规定的允许失效数，则认为该批产品可靠性考核合格，若失效数超过表1 规定的允许失效数，则认为该批产品可靠性考核不合格。
This standard specifies the reliability assessment evaluation indicators, verification test methods and judgment rules for ordinary single-rod double-acting piston cylinders.
The reliable life (TR) at a reliability of 0.9 is used as the reliability assessment indicator for cylinders.
The test adopts a non-replacement timed censoring method.
Under different test censoring mileages, the allowable number of failures of the tested samples is used as the judgment indicator.
If the number of failures does not exceed the allowable number of failures specified in Table 1 at the censoring mileage, the batch of products is considered to have passed the reliability assessment; if the number of failures exceeds the allowable number of failures specified in Table 1, the batch is considered to have failed the reliability assessment.
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
- No changes in main technical content