JB/T 53312-1999
Gear Pump - Product Quality Grading (Internal Use)
齿轮泵 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品的质量等级 → 4 试验与检验方法 → 5 抽样、评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods
Scope
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for gear pump products. This standard applies to oil transfer gear pumps.
本标准规定了齿轮泵产品的质量等级、试验与检验方法和抽样、评定方法。本标准适用于输油齿轮泵。
Normative References
Keywords
Application Summary AI generated
Gear pump manufacturers and quality inspection agencies use this standard to evaluate product quality grades. They conduct tests, inspections, and grading based on the assessment items and indicators specified in this standard, ensuring products meet the requirements for different grades (qualified, first-class, premium). This standard is important for regulating the gear pump market and improving product quality.
齿轮泵制造商和质检机构使用本标准来评定产品的质量等级。他们依据本标准中的考核项目和指标，对齿轮泵进行试验、检验和分级，以确保产品符合不同等级（合格品、一等品、优等品）的要求。本标准对于规范齿轮泵市场、提升产品质量水平具有重要意义。
AI Summary AI generated
This standard JB/T 53312-1999 specifies quality grades, test and inspection methods, and sampling and evaluation methods for gear pump products, applicable to oil transfer gear pumps. Products are classified into three grades: qualified, first-class, and premium, based on quality level. Key assessment items include efficiency, vibration, noise, shaft seal leakage, service life, and temperature rise. The standard details the indicator requirements for each grade and specifies evaluation rules for full inspection or sampling inspection, providing a basis for quality control and grading of gear pumps.
本标准JB/T 53312-1999规定了齿轮泵产品的质量等级、试验检验方法及抽样评定方法，适用于输油齿轮泵。产品按质量水平分为合格品、一等品和优等品三个等级，主要考核项目包括效率、振动、噪声、轴封泄漏量、寿命和温升等。标准详细列出了各等级对应的指标要求，并规定了全数检查或抽样检查的评定规则，为齿轮泵的质量控制和等级划分提供了依据。
Key Sentences extracted from text
本标准规定了齿轮泵产品的质量等级、试验与检验方法和抽样、评定方法。
产品根据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。
产品应符合JB/T 6434 的规定，其中主要考核项目及要求应符合表1 的规定，评定产品质量等级的考核项目、指标和要求应符合表2 的规定。
批量产品应首先进行单个产品的质量等级评定，判定单个产品的质量等级应符合该等级全部考核项目的要求，否则按达到的最低一项指标定等。
采取抽样检查方法时，可按JB/T 8687 规定的合格判定数Ac（或A1、A2）和不合格判定数Re（或R1、R2）评定该批产品达到某一等级（合格品、一等品或优等品）。
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for gear pump products.
Products are divided into three grades: qualified product, first-class product, and premium product, based on quality level and use value.
Products shall comply with the provisions of JB/T 6434, with the main assessment items and requirements conforming to Table 1, and the assessment items, indicators, and requirements for evaluating product quality grades conforming to Table 2.
For batch products, the quality grade of individual products shall first be evaluated; the quality grade of an individual product shall meet all assessment item requirements of that grade, otherwise it shall be graded according to the lowest indicator achieved.
When using the sampling inspection method, the batch product can be evaluated as reaching a certain grade (qualified, first-class, or premium) according to the acceptance number Ac (or A1, A2) and rejection number Re (or R1, R2) specified in JB/T 8687.
Standard Timeline
Changes from replaced version:
- 删除了“千小时效率平均降低值”考核项目
- 为检测操作方便，将产品标准中规定的流量、扬程、汽蚀余量、润滑油渗漏、清洁度、泵用材料、涂漆和外观及包装等主要考核项目及要求列入表1中
- Deleted the assessment item 'average efficiency reduction per thousand hours'
- For ease of testing operation, the main assessment items and requirements specified in the product standard, such as flow rate, head, NPSH, oil leakage, cleanliness, pump materials, painting and appearance, and packaging, are listed in Table 1