JB/T 51198-1999
Disc Harrow Product Quality Grading
圆盘耙 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量指标 → 4 试验方法 → 5 检测规则 → 6 评定原则 Foreword → 1 Scope → 2 Normative References → 3 Quality Indicators → 4 Test Methods → 5 Inspection Rules → 6 Evaluation Principles
Scope
This standard specifies the quality grading indicators, test methods, and inspection rules for disc harrow products matched with tractors. This standard applies to the testing and quality evaluation of disc harrow products matched with tractors.
本标准规定了用于与拖拉机配套的圆盘耙产品的质量分等指标、试验方法和检验规则。本标准适用于与拖拉机配套的圆盘耙产品的检测和质量评定。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to grade and test disc harrow products. It helps determine whether a product meets superior, first, or qualified grade, ensuring reliable performance. This standard is important for raising the overall quality level of the disc harrow industry.
圆盘耙制造商和质检机构使用本标准来对产品进行质量分等和检测。它帮助确定产品是否达到优等品、一等品或合格品等级，从而确保产品性能可靠。该标准对提升圆盘耙行业整体质量水平具有重要意义。
AI Summary AI generated
This standard specifies quality grading indicators, test methods, and inspection rules for disc harrow products matched with tractors. Products are classified into superior, first, and qualified grades based on quality. Key technical indicators include harrowing depth stability, soil pulverization rate, traction power utilization, reliability, and blade hardness. Test methods cover performance testing, assembly quality inspection, and reliability assessment. Inspection rules use sampling plans and evaluate based on nonconformity classification. This standard provides a unified basis for quality control and grade determination of disc harrow products.
本标准规定了与拖拉机配套的圆盘耙产品的质量分等指标、试验方法和检验规则。产品按质量水平分为优等品、一等品和合格品。主要技术指标包括耙深稳定性、碎土率、牵引功率利用率、有效度及耙片硬度等。试验方法涉及性能测试、装配质量检查和可靠性考核。检测规则采用抽样方案，按不合格分类进行评定。该标准为圆盘耙产品的质量控制和等级判定提供了统一依据。
Key Sentences extracted from text
本标准规定了用于与拖拉机配套的圆盘耙产品的质量分等指标、试验方法和检验规则。
按圆盘耙产品的技术水平和质量水平，分为优等品、一等品和合格品。
圆盘耙所有的紧固件必须紧固，不得有松动现象。
圆盘耙片经热处理后其硬度为38~48 HRC，但同一产品品种耙片的硬度范围为7个洛氏硬度单位。
采用逐项考核，按项目定等，以不合格分类表中各组达到的最低等级为产品的质量等级。
This standard specifies the quality grading indicators, test methods, and inspection rules for disc harrow products matched with tractors.
According to the technical level and quality level of disc harrow products, they are divided into superior grade, first grade, and qualified grade.
All fasteners of the disc harrow must be tightened and shall not be loose.
After heat treatment, the hardness of disc harrow blades shall be 38~48 HRC, but the hardness range of blades of the same product type shall be 7 Rockwell hardness units.
Adopt item-by-item assessment, grade by item, and take the lowest grade achieved by each group in the nonconformity classification table as the product quality grade.
Standard Timeline
Changes from replaced version:
- 对质量指标进行了修改
- 调整了不合格项目分类
- Modified the quality indicators
- Adjusted the classification of nonconforming items