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电弧切割混凝土是在乙炔切割工艺基础上的一种创新。它在工业与民用建筑施工中,特别是在旧厂房的改造扩建中有着重大的使用价值。乙炔切割混凝土工艺虽已普遍得到应用,但它尚存在下述几个问题:1.需用特制的工具,价值昂贵,而且笨重,不适应现场灵活操作的需要;2.工序繁琐,操作过程要求预热,要涂化学药剂才能进行切割,构件易受损,且不安全。3.热效率低,电石及氧气消耗大,切割速度慢,成本高。华北矿建第一建筑工程公司的工人劳风山同志根据乙炔高温(3200℃)熔割原理,进行
Arc cutting of concrete is an innovation based on the acetylene cutting process. It has great value in the construction of industrial and civil buildings, especially in the renovation and expansion of old plants. Although acetylene-cutting concrete technology has been widely used, it still has the following problems: 1. The use of special tools, which is expensive and cumbersome, does not meet the needs of on-site flexible operation; 2. The process is cumbersome, the operating process requirements Preheating requires chemical agents to cut, components are easily damaged, and unsafe. 3. Low thermal efficiency, high consumption of calcium carbide and oxygen, slow cutting speed and high cost. Comrade Luo Fengshan, a worker of North China Mine Construction No. 1 Construction Engineering Company, proceeded on the basis of the high temperature (3200°C) melting and cutting principle of acetylene.