JB/T 54260-1999
Quality Grading of Measuring Tools and Instruments Products - Cast Iron Surface Plate
量具量仪产品质量分等 铸铁平板
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 合格品 → 4 一等品 → 5 优等品 → 6 等级评定 Foreword → 1 Scope → 2 Normative References → 3 Qualified Product → 4 First-Class Product → 5 Premium Product → 6 Grade Evaluation
Scope
This standard specifies the quality indicators for qualified products, first-class products, and premium products of cast iron surface plates (hereinafter referred to as surface plates) with accuracy grades of 000, 00, 0, 1, 2, and 3. This standard is applicable to the evaluation of quality grades of surface plates produced in batches.
本标准规定了精度等级为000 级、00 级、0 级、1 级、2 级、3 级铸铁平板（以下简称平板）的合格品、一等品和优等品的各项质量指标。本标准适用于成批生产的平板质量等级的评定。
Normative References
Keywords
Application Summary AI generated
Manufacturers of cast iron surface plates use this standard to grade their products and ensure compliance with various accuracy levels. Inspection agencies and customers rely on this standard for acceptance testing and classification, ensuring the reliability of measurement references. This standard is critical for maintaining precision in machining and inspection processes.
铸铁平板制造商使用本标准来评定其产品的质量等级，确保产品符合不同精度等级的要求。质检机构和用户依据本标准对平板进行验收和分级，以保证测量基准的准确性和可靠性。该标准对于保证机械加工和检测中的精度至关重要。
AI Summary AI generated
This standard specifies quality indicators for qualified, first-class, and premium products of cast iron surface plates (grades 000 to 3), including flatness tolerances, contact area ratios, and surface waviness. It applies to batch production quality grading and references standards such as GB/T 1184 and JB/T 7974. Requirements for flatness, contact points, and wear resistance life tests increase progressively from qualified to premium products, with premium products requiring 75,000 wear tests.
本标准规定了铸铁平板（000级至3级）的合格品、一等品和优等品的质量指标，包括平面度公差、接触点面积比率、平面波动量等关键参数。标准适用于成批生产的平板质量等级评定，并引用了GB/T 1184、JB/T 7974等标准。合格品、一等品和优等品在平面度、接触点比率和耐磨寿命试验次数上逐级提高要求，其中优等品需通过75000次耐磨试验。
Key Sentences extracted from text
本标准规定了精度等级为000 级、00 级、0 级、1 级、2 级、3 级铸铁平板（以下简称平板）的合格品、一等品和优等品的各项质量指标。
平板工作面的平面度公差见表1 的规定。
平板工作面采用刮削工艺应进行涂色对研检验。
对不便采用涂色对研检验的平板工作面应检验其平面波动量，工作面的平面波动量见表3的规定。
对平板进行50000 次耐磨寿命试验后，其工作面的平面度应符合表1 的规定。
This standard specifies the quality indicators for qualified products, first-class products, and premium products of cast iron surface plates (hereinafter referred to as surface plates) with accuracy grades of 000, 00, 0, 1, 2, and 3.
The flatness tolerance of the surface plate working surface is specified in Table 1.
The surface plate working surface using scraping process shall be inspected by color matching and lapping.
For surface plate working surfaces that are not convenient for color matching and lapping inspection, the surface waviness shall be inspected, and the surface waviness of the working surface is specified in Table 3.
After 50,000 wear resistance life tests on the surface plate, the flatness of its working surface shall comply with the provisions of Table 1.
Standard Timeline
Changes from replaced version:
- 本标准与JB/T 54260—94 的技术内容一致，仅按有关规定重新进行了编辑。
- The technical content of this standard is consistent with JB/T 54260—94, only re-edited according to relevant regulations.