JB/T 54498-1999
Silicon Carbide Tube - Product Quality Grading
硅碳管 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 技术要求 → 4 检验规则 → 5 产品质量等级的评定 Foreword → 1 Scope → 2 Normative References → 3 Technical Requirements → 4 Inspection Rules → 5 Evaluation of Product Quality Grades
Scope
This standard specifies the technical conditions, inspection regulations, and evaluation methods for quality grading of silicon carbide tubes made from silicon carbide as raw material. This standard is applicable to relevant departments for assessing product quality and conducting spot checks and comparisons. It can serve as the technical basis for grading, upgrading, excellence creation, and pricing according to quality and grade.
本标准规定了以碳化硅作原料的硅碳管质量分等的技术条件、检查规定和评定方法。本标准适用于有关部门考核产品质量、抽查评比。可作为分等定级、升级创优、按质按等论价的技术依据。
Normative References
Keywords
Application Summary AI generated
Manufacturers of silicon carbide tubes and quality inspection departments use this standard to grade and evaluate product quality. It helps distinguish between qualified, first-class, and superior products, providing a basis for pricing according to quality and product improvement. This standard is important for ensuring consistent product quality and market competitiveness.
该标准由生产硅碳管的企业和质检部门使用，用于对硅碳管产品进行质量分等和等级评定。它帮助用户区分合格品、一等品和优等品，为按质定价和产品升级提供依据。该标准对保证硅碳管产品质量稳定性和市场竞争力具有重要意义。
AI Summary AI generated
This standard JB/T 54498-1999 is a machinery industry standard for quality grading of silicon carbide tubes, applicable to tubes made from silicon carbide. It classifies products into three grades: qualified, first-class, and superior, specifying key technical indicators such as appearance, dimensional deviation, bending, resistance deviation, and heating zone temperature difference. The standard also defines inspection rules and grading evaluation methods, providing a technical basis for product quality assessment, spot checks, and pricing according to quality.
本标准JB/T 54498-1999是关于硅碳管产品质量分等的机械行业标准，适用于以碳化硅为原料的硅碳管。标准将产品分为合格品、一等品和优等品三个等级，规定了外观、尺寸偏差、弯曲度、电阻值偏差和发热部温差等关键技术指标，并明确了检验规则和等级评定方法。该标准为产品质量考核、抽查评比和按质定价提供了技术依据。
Key Sentences extracted from text
本标准规定了以碳化硅作原料的硅碳管质量分等的技术条件、检查规定和评定方法。
凡符合JB/T 10044 的产品，按其达到标准的程度和使用价值，分为合格品、一等品和优等品三个质量等级。
合格品：各项质量指标达到硅碳管标准要求。
一等品：各项质量指标在现行标准上有一定提高，达到国外同期产品较好水平。
优等品：质量指标达到国外先进水平，生产过程质量稳定，产品在国际市场上具有竞争能力。
This standard specifies the technical conditions, inspection regulations, and evaluation methods for quality grading of silicon carbide tubes made from silicon carbide as raw material.
Products conforming to JB/T 10044 are divided into three quality grades: qualified product, first-class product, and superior product, according to the degree of compliance with the standard and their use value.
Qualified product: all quality indicators meet the requirements of the silicon carbide tube standard.
First-class product: all quality indicators are improved to a certain extent over the current standard, reaching a good level comparable to foreign products of the same period.
Superior product: quality indicators reach advanced foreign levels, production process quality is stable, and the product is competitive in the international market.
Standard Timeline
Changes from replaced version:
- 仅按有关规定进行重新编辑，主要技术内容没有变化
- Only re-edited according to relevant regulations, with no changes to main technical content