ISO 11971:2020 钢和铁铸件 表面质量的目视检验

标准编号：ISO 11971:2020

中文名称：钢和铁铸件 表面质量的目视检验

英文名称：Steel and iron castings — Visual testing of surface quality

发布日期：2020-01

标准范围

1.1 This document covers the acceptance criteria for the visual testing of the surface of steel and iron castings.
1.2 Acceptance levels utilize Bureau de Normalisation des Industries de la Fonderie (BNIF) and Steel Castings Research and Trade Association (SCRATA) or Casting Technology International (CTI) reference comparators for the visual determination of surface roughness and surface discontinuities described as follows:
— surface roughness;
— thermal dressing;
— mechanical dressing;
— non-metallic inclusions;
— gas porosity;
— fusion discontinuities;
— expansion discontinuities;
 — metal inserts.

标准预览图