马鞍山钢铁股份有限公司耐火耐候H型钢两次现场试制,规格分别为17mm和99mm,生产后对不同批次试制的H型钢的红检样进行尺寸外形测量,每个样共14个点。两次试制规格产品的翼缘厚度(t值)尺寸公差均以正公差控制,且最大公差分别为1.20mm和1.40mm,不超过2.0mm,满足现场试制的技术要求。
Maanshan Iron and Steel Co., LTD. Refractory weather resistant H-beams were trial-produced twice, with specifications of 17mm and 99mm respectively. After production, the dimensions and shapes of red samples of different batches of trial-produced H-beams were measured, with a total of 14 points for each sample. The size tolerance of flange thickness (T value) of the two trial products is controlled by positive tolerance, and the maximum tolerance is 1.20mm and 1.40mm, not more than 2.0mm, which meets the technical requirements of field trial production.