涂装油漆和有关产品前钢材预处理 喷射清理用金属磨料的技术要求 第3部分:高碳铸钢丸和砂

[中文适用范围]： 本文件规定了用于喷砂清理工艺的 14 种高碳铸钢丸和 11 种高碳铸钢砂的要求。 指定了硬度、密度、缺陷/结构要求和化学成分的值。 本文件中规定的要求仅适用于以“新”状态提供的磨料。 它们不适用于使用期间或使用后的磨料。 ISO 11125 的各个部分给出了金属喷砂清理磨料的测试方法。 高碳铸钢丸和砂粒用于静态和现场喷砂设备。 如果有磨料回收和再利用设施，则最常选择它们。 注 1：关于金属磨料常用参考国家标准的信息及其与 ISO 11124 的大致关系在附录 A 中给出。 注 2：虽然本文件是专门为满足钢结构制备的要求而制定的，但规定的性能通常适合使用使用喷砂清理技术准备其他材料表面或部件时。 ISO 8504-2 中描述了这些技术。 [外文原描述]： This document specifies requirements for 14 grades of high-carbon cast-steel shot and 11 grades of high-carbon cast-steel grit, as supplied for blast-cleaning processes. Values are specified for hardness, density, defect/structural requirements and chemical composition. The requirements specified in this document apply to abrasives supplied in the "new" condition only. They do not apply to abrasives either during or after use. Test methods for metallic blast-cleaning abrasives are given in the various parts of ISO 11125. High-carbon cast-steel shot and grit are used in both static and site blasting equipment. They are most often selected where a facility exists for the recovery and re-use of the abrasive. NOTE 1 Information on commonly referenced national standards for metallic abrasives and their approximate relationship with ISO 11124 is given in Annex A. NOTE 2 Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified will generally be appropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques. These techniques are described in ISO 8504‑2.