JB/T 53547-1999

Quality inspectors in the coal industry and machinery manufacturing enterprises use this standard to evaluate the quality grades of coal seat-type double-shaft vibrating screens. By specifying concrete indicators for qualified and first-class products, it helps ensure the performance, reliability, and safety of vibrating screens. This standard is important for standardizing product quality and advancing technical levels in the industry.

煤炭行业和机械制造企业的质量检验人员使用本标准，对煤用座式双轴振动筛进行质量等级评定。该标准通过规定合格品和一等品的具体指标，帮助确保振动筛产品的性能、可靠性和安全性。它对于规范产品质量、提升行业技术水平具有重要意义。

This standard specifies quality grades, test methods, and inspection rules for coal seat-type double-shaft vibrating screens, applicable for evaluating product quality grades. It classifies products into qualified and first-class grades based on technical level, finished product inspection, production quality checks, and user feedback. Key indicators include pass rates for finished product inspection, assembly/painting/packaging quality, critical items, and major items. Test methods cover amplitude, frequency, temperature rise, and noise. Inspection rules require sampling, with the lowest grade determining the batch quality.

本标准规定了煤用座式双轴振动筛的质量等级、试验方法和检验规则，适用于评定该类产品的质量等级。标准将产品分为合格品和一等品，依据技术水平、成品检验、生产过程质量检查和用户评价确定。关键指标包括成品检验项目合格率、装配涂漆包装质量合格率、关键项目和主要项目合格率。试验方法涵盖振幅、频率、温升、噪声等检测，检验规则要求抽样检查，以最低等级评定整批产品。