JB/T 53119-1999
Plastic Pressure Forming Machine - Product Quality Grading (Internal Use)
塑料压力成型机 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品质量等级 → 4 试验方法 → 5 抽样与评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test Methods → 5 Sampling and Evaluation Methods
Scope
This standard specifies the quality grades, test methods, and sampling and evaluation methods for plastic pressure forming machine products. This standard applies to the product quality grading of plastic pressure forming machines as specified in JB/T 6490-1992 "Plastic Pressure Forming Machine".
本标准规定了塑料压力成型机产品的质量等级、试验方法和抽样与评定方法。本标准适用于JB/T 6490—1992《塑料压力成型机》规定的塑料压力成型机产品质量分等。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to classify and test plastic pressure forming machines. It helps determine whether products meet qualified, first-class, or superior grades, guiding production improvements and user selection. By unifying assessment indicators and test methods, the standard ensures product reliability and comparability.
塑料压力成型机制造商和质检机构使用本标准来对产品进行质量分级和检验。它帮助确定产品是否达到合格、一等或优等品等级，从而指导生产改进和用户选型。该标准通过统一考核指标和试验方法，确保产品质量的可靠性和可比性。
AI Summary AI generated
This standard specifies quality grading requirements for plastic pressure forming machines, covering three grades: qualified, first-class, and superior. Key assessment items include pressure drop during holding, operating force, parallelism, perpendicularity, main cylinder sliding surface tolerances and roughness, oil leakage points, and noise. Test methods reference JB/T 6490, sampling requires at least 2 units, and grading is based on the lowest indicator. It replaces JB/T 53119-94 with no major technical changes.
本标准规定了塑料压力成型机的产品质量分等要求，包括合格品、一等品和优等品三个等级。主要考核项目有保压压力降、操纵力、平行度、垂直度、主缸滑动表面公差和粗糙度、漏油点及噪声等。试验方法引用JB/T 6490，抽样要求不少于2台，评定按最低指标定级。该标准替代JB/T 53119-94，技术内容无重大变化。
Key Sentences extracted from text
产品根据其质量水平和使用价值分为合格品、一等品和优等品三个等级。
产品除符合JB/T 6490 规定外，各等级的考核项目、指标要求还应按表1 的规定。
抽样产品必须是制造厂检验部门检查合格入库或出厂在用户处未开箱的批量产品，抽检样本不少于2 台，全部检测项目采用一次检测。
评定产品质量等级，必须符合该等级全部考核项目的技术要求，否则按达到的最低一项指标定等级。
保压试验时的压力降不大于额定压力的10%。
Products are classified into three grades: qualified product, first-class product, and superior product, based on their quality level and use value.
In addition to complying with JB/T 6490, the assessment items and indicator requirements for each grade shall also comply with the provisions of Table 1.
Sampled products must be batch products that have passed inspection by the manufacturer's inspection department and are in storage or unopened at the user's site; the sample size shall be no less than 2 units, and all test items shall be tested once.
When evaluating the product quality grade, it must meet the technical requirements of all assessment items for that grade; otherwise, the grade shall be determined by the lowest indicator achieved.
The pressure drop during the pressure holding test shall not exceed 10% of the rated pressure.
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, with no changes to the main technical content.