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现行 ASTM B533-85(2024)
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Standard Test Method for Peel Strength of Metal Electroplated Plastics 金属电镀塑料剥离强度的标准试验方法
发布日期: 2024-05-01
1.1 该试验方法提供了两种程序,用于测量从塑料基底上剥离金属涂层所需的力。 2. 一个程序(程序A)利用通用测试机,产生可重复的测量结果,可用于研发、质量控制和产品验收、材料和工艺特性描述以及通信。另一个程序(程序B)使用的指示力仪器精度较低,对操作员技术敏感。它适用于过程控制用途。 1.2 在标准模塑板上进行测试。此方法不包括生产电镀零件的测试。 1.3 测试不一定要测量金属涂层与塑料基底的附着力,因为在适当制备的试样中,分离通常发生在涂层-基底界面下方的塑料中,而不是在界面处。然而,它确实反映了该过程受到控制的程度。 1.4 本标准并不旨在解决与其使用相关的所有安全问题(如有)。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践,并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 将金属涂层与其塑料基材分离所需的力由几个因素的相互作用决定:塑料模塑化合物的一般类型和质量、模塑工艺、用于制备电镀基材的工艺以及金属涂层的厚度和机械性能。通过保持所有其他因素不变,可以注意到上述因素中任何一个的变化对剥离强度的影响。在生产操作中常规使用测试可以检测上述任何因素的变化。 4.2 剥离试验值与实际产品上金属涂层的附着力没有直接关系。 4.3 当使用剥离试验来监测涂层过程时,应使用生产模塑件中使用的同一批模塑化合物一次模塑大量的板,以最大限度地减少对塑料和模塑过程变化测量的影响。
1.1 This test method gives two procedures for measuring the force required to peel a metallic coating from a plastic substrate. 2 One procedure (Procedure A) utilizes a universal testing machine and yields reproducible measurements that can be used in research and development, in quality control and product acceptance, in the description of material and process characteristics, and in communications. The other procedure (Procedure B) utilizes an indicating force instrument that is less accurate and that is sensitive to operator technique. It is suitable for process control use. 1.2 The tests are performed on standard molded plaques. This method does not cover the testing of production electroplated parts. 1.3 The tests do not necessarily measure the adhesion of a metallic coating to a plastic substrate because in properly prepared test specimens, separation usually occurs in the plastic just beneath the coating-substrate interface rather than at the interface. It does, however, reflect the degree that the process is controlled. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 The force required to separate a metallic coating from its plastic substrate is determined by the interaction of several factors: the generic type and quality of the plastic molding compound, the molding process, the process used to prepare the substrate for electroplating, and the thickness and mechanical properties of the metallic coating. By holding all others constant, the effect on the peel strength by a change in any one of the above listed factors may be noted. Routine use of the test in a production operation can detect changes in any of the above listed factors. 4.2 The peel test values do not directly correlate to the adhesion of metallic coatings on the actual product. 4.3 When the peel test is used to monitor the coating process, a large number of plaques should be molded at one time from a same batch of molding compound used in the production moldings to minimize the effects on the measurements of variations in the plastic and the molding process.
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归口单位: B08.05
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