JB/T 56050-1999
Copper-based Brazing Filler Metals - Product Quality Grading (Internal Use)
铜基钎料 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量等级 → 4 检验方法 → 5 抽样方法 → 6 评定方法 Foreword → 1 Scope → 2 Normative References → 3 Quality Grades → 4 Inspection Methods → 5 Sampling Methods → 6 Evaluation Methods
Scope
This standard specifies the quality grades, inspection and test methods, sampling methods, and evaluation methods for copper-based brazing filler metals. This standard applies to copper-based brazing filler metals used in methods such as gas flame brazing, resistance brazing, furnace brazing, induction brazing, and dip brazing.
本标准规定了铜基钎料的质量等级、检验及试验方法、抽样方法、评定方法等内容。本标准适用于气体火焰钎焊、电阻钎焊、炉中钎焊、感应钎焊和浸沾钎焊等方法使用的铜基钎料。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection departments of copper-based brazing filler metals use this standard to grade and inspect their products. They classify products into qualified, first-grade, and superior grades based on external and internal quality criteria. This standard ensures consistent quality of copper-based brazing filler metals, providing a basis for selecting appropriate materials for various brazing applications.
铜基钎料的生产企业和质量检验部门使用本标准来对产品进行质量分等和检验。他们依据本标准将产品划分为合格品、一等品和优等品，并按照外在质量和内在质量指标进行考核。本标准确保了铜基钎料的质量一致性，为不同应用场景选择合适的钎料提供了依据。
AI Summary AI generated
This standard specifies the quality grading requirements for copper-based brazing filler metals, classifying products into three grades: qualified, first-grade, and superior. It details inspection items, methods, and scoring rules for external quality (e.g., impurities, cracks, dimensions) and internal quality (chemical composition, joint strength), along with sampling and re-inspection procedures. Applicable to copper-based filler metals used in various brazing methods, it provides a unified basis for quality control and grade evaluation.
本标准规定了铜基钎料的质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准详细列出了外在质量（如杂质、裂纹、尺寸等）和内在质量（化学成分、接头强度）的检验项目、方法和评分规则，并规定了抽样和复验程序。适用于多种钎焊方法使用的铜基钎料，为质量控制和等级评定提供了统一依据。
Key Sentences extracted from text
本标准规定了铜基钎料的质量等级、检验及试验方法、抽样方法、评定方法等内容。
铜基钎料的产品质量水平分为合格品、一等品和优等品三个等级，按其外在质量、内在质量两个方面进行考核。
钎料表面有明显夹杂及影响钎焊质量的杂质为该项次不合格。
钎料表面裂纹，单条纵长大于或等于30 mm 或横长大于或等于周长的1/2 者为不合格。
钎料化学成分应符合GB/T 6418 的有关规定，分析方法按有关标准的规定。
This standard specifies the quality grades, inspection and test methods, sampling methods, and evaluation methods for copper-based brazing filler metals.
The product quality level of copper-based brazing filler metals is divided into three grades: qualified product, first-grade product, and superior product, assessed based on their external quality and internal quality.
Obvious inclusions or impurities on the surface of the brazing filler metal that affect brazing quality are considered unqualified for that item.
Surface cracks on the brazing filler metal, with a single longitudinal length greater than or equal to 30 mm or a transverse length greater than or equal to 1/2 of the circumference, are considered unqualified.
The chemical composition of the brazing filler metal shall comply with the relevant provisions of GB/T 6418, and the analysis method shall be in accordance with the provisions of relevant standards.
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.