JB/T 53509-1999
LZ-120 Claw Loader - Product Quality Grading
LZ –120 立爪装载机 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量等级 → 4 试验方法 Foreword → 1 Scope → 2 Normative References → 3 Quality Grade → 4 Test Methods
Scope
This standard specifies the quality grades, test methods, and inspection rules for LZ-120 and its improved claw loader products. This standard is applicable to evaluating the quality grades of LZ-120 and its improved claw loader products.
本标准规定了LZ–120 及其改进的立爪装载机产品的质量等级、试验方法和检验规则。 本标准适用于评定LZ–120 及其改进的立爪装载机产品的质量等级。
Normative References
Keywords
Application Summary AI generated
Mining machinery manufacturers and quality inspection departments use this standard to evaluate the quality grade of LZ-120 claw loaders. It helps distinguish between qualified and first-grade products by specifying criteria for finished product inspection, component manufacturing, and reliability. This standard is important for standardizing product quality, enhancing competitiveness, and ensuring user satisfaction.
矿山机械制造企业和质量检验部门使用该标准，对LZ-120立爪装载机进行质量等级评定。该标准通过规定成品检验、零件加工和可靠性等指标，帮助企业区分合格品与一等品，确保产品达到相应质量水平。它对于规范装载机产品质量、提升产品竞争力和用户满意度具有重要意义。
AI Summary AI generated
This standard specifies the product quality grading requirements for LZ-120 claw loaders, including two grades: qualified product and first-grade product. It covers finished product inspection, assembly/painting/packaging quality, major component manufacturing quality, reliability and life, compatibility, safety and health, and user evaluation. Finished product inspection items include loading capacity, digging width, hydraulic system cleanliness, etc. Reliability requires operating time before first major overhaul of at least 18 months (qualified) or 22 months (first-grade). The standard also specifies test methods and inspection rules for quality evaluation of this loader model.
本标准规定了LZ-120立爪装载机的产品质量分等要求，包括合格品和一等品两个等级。标准涵盖了成品检验、装配涂漆包装质量、主要零件加工制造质量、可靠性寿命、配套性、安全卫生及用户评价等指标。成品检验项目包括装载能力、扒取宽度、液压系统清洁度等，可靠性要求首次大修前运转时间不少于18个月（合格品）或22个月（一等品）。标准还规定了试验方法和检验规则，适用于该型号装载机的质量评定。
Key Sentences extracted from text
产品的质量等级根据采用的标准、产品的技术水平、成品检验、生产过程中的质量检查和用户评价意见几个方面来确定，分为合格品和一等品两个等级。
成品检验项目应符合表2 的规定。
至第一次大修前运转时间 月 18 22
噪声 dB(A) ≤100
应有对产品质量评价的三家用户证明材料或性能试验报告，作为评定质量等级的依据。
The quality grade of the product is determined based on the adopted standards, product technical level, finished product inspection, quality inspection during production, and user evaluation opinions, and is divided into two grades: qualified product and first-grade product.
The finished product inspection items shall comply with the provisions of Table 2.
Operating time before first major overhaul (months): 18, 22.
Noise dB(A): ≤100.
There shall be three user certification materials or performance test reports evaluating product quality as the basis for determining the quality grade.
Standard Timeline
Changes from replaced version:
- 标准名称改为“LZ–120 立爪装载机 产品质量分等”
- 调整了成品检验项目的部分项目
- 修改了部分主要零件的考核要求
- 依据产品标准，修改了试验方法的部分内容
- Standard name changed to 'LZ-120 Claw Loader - Product Quality Grading'
- Adjusted some items of the finished product inspection items
- Modified the assessment requirements for some main parts
- Modified some contents of the test methods based on the product standard