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2014年7月29日,衡阳华菱钢管有限公司(简称华菱衡钢)Φ89 mm半浮动芯棒连轧管机组首次成功轧制出Φ51 mm×7mm规格的55SiMnMo凿岩钎具用管,为华菱衡钢进军凿岩钎具用管市场迈出了坚实的一步。凿岩钎具是由钎头、钎杆、钎尾等部件组成的一个细长的杆件系统,是矿业资源开采、交通道路建设、水电项目施工和城镇化建设等领域施工项目中用于钻凿岩矿石的主要工具。钎具产品在使用过程中,要受到岩矿石的剧烈磨损、高压水流或
July 29, 2014, Hengyang Valin Steel Pipe Co., Ltd. (referred to as Valin Hengyang) Φ89 mm semi-floating mandrel rolling unit for the first time successfully rolled out Φ51 mm × 7mm specifications 55SiMnMo rock drill pipe with Valin Hengyang into the rock drill with pipe market has taken a solid step. Rock drill is a slender rod system composed of drill bit, drill rod, shank tail and other components. It is used in drilling projects in the fields of mining resources exploitation, traffic road construction, hydropower project construction and urbanization. The main tool for rock drilling. Brazing products in the use of the process, to be severely worn rocks and rocks, high-pressure water flow or