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我厂是国外进口的高压机,活塞杆直径是φ160毫米,长度1490毫米,材质合我国40~#钢表面淬火的活塞杆。这高压机因设计缺陷多次将活塞杆烧弯,有的弯曲度最大达1.30毫米左右,因而造成大量的活塞杆报废不能用。当时所谓外国专家也想用火焰矫直方法将这些活塞杆修复,但是经过多次都失败没有矫直成功一根。我们自己采用5~#焊嘴火焰矫直方法进行矫直效果很好,能使弯曲度在0.5～1.3毫米的活塞杆经矫直后精度可达到0.03～0.06毫米左右;火焰矫直后的活塞杆从新使用良好、并无异象。
Our factory is imported from abroad, high-pressure machine, piston rod diameter is φ160 mm, length 1490 mm, the material of China’s 40 # steel surface quenched piston rod. This high-pressure machine due to design flaws many times the piston rod bending, and some bending up to 1.30 mm or so, resulting in a large number of piston rod scrapped can not be used. At that time, the so-called foreign experts also wanted to use flame straightening method to repair these piston rod, but after many failures have not straightened a success. Our own 5 ~ # nozzle flame straightening method for straightening good results can make the bending of the 0.5 ~ 1.3 mm piston rod straightening accuracy of up to 0.03 ~ 0.06 mm; Flame strained piston Pole re-use good, no vision.