论文部分内容阅读
螺纹钢筋是建筑工程用材。大型水利、桥梁、涵洞、工厂设施、民用住宅及其它建筑工程等,都离不开螺纹钢筋。螺纹钢筋质量优劣,直接关系到各项建筑工程的百年大计,关系到国计民生。因此,提高螺纹钢筋的质量具有重要的经济意义和政治意义。对螺纹钢筋有如下要求:化学成分和机械性能稳定,尺寸公差较小,良好的钢材表面和工艺性能。
Rebar is construction materials. Large water conservancy, bridges, culverts, factory facilities, residential and other civil construction projects, are inseparable from the rebar. The pros and cons of the quality of the rebar is directly related to the centuries-old plan of various construction projects, which is related to the national economy and the people’s livelihood. Therefore, improving the quality of the rebar has important economic and political significance. On the rebar has the following requirements: chemical composition and mechanical properties of stability, smaller size tolerances, good steel surface and process performance.