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我厂为了在模具制造中积极推广型腔冷挤压新工艺,在领导、技术人员和工人三结合之下,敢想敢干,在很短的时间内制成了一台800吨型腔冷挤压专用油压机(见封二照片),解决了冷挤工艺中的设备问题,使冷挤压工艺在生产上的应用取得了较快的进展。型腔冷挤压也可利用普通的液压机来进行挤压工作,但是利用此类压机主要有下列缺点:(1)工作行程速度太快,不易控制,不符合挤压工艺要求,工作不安全(理想的挤压速度为0.01～0.1毫米/秒)。(2)无安全防护装置。(3)结构复杂、体积大,所需功率较大。(4)工作台面与闭合高度均过大,与挤压要求恰相反。800吨专用油压机的结构完全适应了冷挤压工艺的要求,消除了用普通液压机进行挤压所存在的缺点。该压机的主要技术规格为:
I plant in order to actively promote the production of mold cold extrusion new technology, under the leadership of the combination of technicians and workers dared to do it in a very short period of time made a 800-ton cavity cold Squeeze the special hydraulic press (see the cover two photos), to solve the problem of equipment in the cold extrusion process, the cold extrusion process in the application of production has made rapid progress. Cavity cold extrusion can also be used ordinary hydraulic press for extrusion work, but the use of such presses mainly has the following disadvantages: (1) working stroke speed is too fast, not easy to control, does not meet the extrusion process requirements, work is not safe (The ideal extrusion speed is 0.01 to 0.1 mm / sec.) (2) No safety guards. (3) complex structure, large size, the required power larger. (4) Countertops and closed height are too large, and the extrusion requirements on the contrary. 800 tons of special hydraulic machine structure fully meet the requirements of the cold extrusion process, eliminating the squeeze with ordinary hydraulic machine there are shortcomings. The main technical specifications of the press are: