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防爬器是铁道线路上的配件,安装在钢轨和道木上,用以锁紧钢轨,防止它在道本上爬行,是铁道上很重要的配件。尤其是提高行车速度,保证线路质量,或坡道上更是不可缺少的。1953年以前,各型防爬器都是用钢材锻造之后焊接的,成本很高,生产效率低,满足不了需要。根据我厂铸造球墨铸铁的性质(抗强强度＞40公斤/公厘2,屈服点＞19公斤/公厘2, 延伸率＞20%以上),与钢料性质相仿,因而我们大批生产了球墨铸铁防爬器。几年来在铁道科学研究院的帮助指导下,获得了良好的效果。
Anti-climbing device is a railway line accessories, installed in the rail and road wood, to lock the rail to prevent it crawling in the road, is a very important railway accessories. In particular, to improve driving speed, ensure the quality of the line, or even on the ramp is indispensable. Prior to 1953, all types of anti-climbing devices were welded with steel forging after high cost and low production efficiency, which could not meet the needs. Based on the properties of cast iron ductile cast iron (strength> 40 kg / mm2, yield point> 19 kg / mm2, elongation> 20%), similar to the properties of steel, we have produced a large number of nodular cast iron Cast iron anti-climbing device. In recent years, with the help of the Academy of Railway Science and guidance, obtained good results.