YB/T 4250-2011 in English

本标准规定了冶金用全氢罩式退火炉分类与代号、技术要求、检验方法、检验规则、标志、包装、运输和贮存等。
本标准适用于冶金行业、以纯氢气作为保护气氛退火的罩式炉。

Scope

This standard specifies the terms and definitions, classification codes and markings, technical requirements, performance requirements, inspection item methods, inspection rules, markings, packaging, transportation and storage of all-hydrogen bell annealing furnaces for metallurgy (hereinafter referred to as bell furnaces), etc. . This standard is applicable to the metallurgical industry, which uses resistance heating and gas heating as energy and pure hydrogen as a protective atmosphere to anneal bell-type furnaces for cold-rolled strips, stainless steel hot-rolled strips, alloy materials, etc. Other industries can refer to the implementation.