汽车中框密封条钢带质量评价数据

汽车密封条主要由金属骨架以及包覆在金属骨架上的橡胶组成，金属骨架主要起到支撑作用，保持橡胶的形状，确保密封条安装后的安全性和密封性。金属骨架的力学性能是保证密封条机械性能的重要参数之一，力学性能不足的金属骨架密封条容易在生产、运输、安装、使用等过程中极易发生断裂等损坏。金属骨架的力学性能通常通过抗拉强度和断裂伸长率来体现。本数据主要用于监测本公司内部生产及流通领域密封条金属骨架质量情况，通过检测数据并经计算后可以判断密封条中金属骨架的力学性能是否符合国家汽车行业及客户技术要求的质量标准，避免因产品力学性能不足导致的产品质量问题。1、样品采集：根据GB/T 228.1-2021 附录E的技术要求制取标准试样，用测厚仪和游标卡尺分别测出待测样条的原始厚度和原始宽度，并画出两条间隔50mm±0.5mm的原始标距； 2、样品测试：将试样对称地夹在拉力试验机的上、下夹持器上，使拉力均匀地分布在待测样条的横截面上，拉伸速度设置为10mm/min，点击触控面板上的"开始"按钮进行测试 ； 3．数据采集：每组样品测试完成之后采集该样品的位移（mm）和力（kN）；4、数据计算：位移÷原始标距×100%=断裂伸长率（%）；力×1000÷（原始厚度×原始宽度）=抗拉强度（MPa）；5、根据该样品的技术要求，抗拉强度最大值≥350MPa，且断裂伸长率最大值≥6%即记为合格品，任一参数不满足技术要求即记为不合格品，用于作出该材料力学性能是否合格的判定依据。

Automotive weatherstrips are mainly composed of a metal skeleton and a rubber coating wrapped around the metal skeleton. The metal skeleton mainly serves a supporting role to maintain the shape of the rubber and ensure the safety and sealing performance of the installed weatherstrip. The mechanical properties of the metal skeleton are one of the important parameters guaranteeing the mechanical performance of the weatherstrip. Weatherstrips with metal skeletons lacking sufficient mechanical properties are highly prone to damages such as fracture during production, transportation, installation and use. The mechanical properties of the metal skeleton are usually characterized by tensile strength and elongation at break. This dataset is mainly used to monitor the quality of metal skeletons in weatherstrips during our company's internal production and circulation sectors. Through test data and subsequent calculations, we can determine whether the mechanical properties of the metal skeleton in the weatherstrip meet the quality standards set by the national automotive industry and specified in customer technical requirements, so as to avoid product quality problems caused by insufficient mechanical properties of the products.
1. Sample Collection: Standard specimens were prepared in accordance with the technical requirements specified in Appendix E of GB/T 228.1-2021. Measure the original thickness and original width of the test specimen strip using a thickness gauge and vernier caliper respectively, and draw two original gauge marks with an interval of 50mm±0.5mm.
2. Sample Testing: Clamp the specimen symmetrically on the upper and lower grips of the tensile testing machine to ensure uniform distribution of tensile force across the cross-section of the test strip. Set the stretching speed to 10 mm/min, then click the "Start" button on the touch panel to initiate the test.
3. Data Collection: Collect the displacement (mm) and force (kN) of each specimen immediately after the completion of its test.
4. Data Calculation: Elongation at break (%) = (Displacement / Original Gauge Length) × 100%; Tensile strength (MPa) = (Force × 1000) / (Original Thickness × Original Width).
5. Quality Judgment: A specimen is deemed as a qualified product if its tensile strength is ≥350MPa and its elongation at break is ≥6% as required by the technical specifications. Any specimen failing to meet either of the two parameters is classified as a non-conforming product, which serves as the basis for judging the qualification of the material's mechanical properties.

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该数据集由浙江仙通橡塑股份有限公司提供，包含1541条记录，每年更新一次，主要用于监测汽车密封条金属骨架的质量情况，确保其力学性能符合国家和客户的技术要求。