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在我們专区大搞机床生产运动时,我厂接受了大批八呎車床的生产任务。由于干型生产周期太长,烘窑能力也不足,最初就采用潮型生产。但是潮型强度低,在起模时床身导軌部分砂型很容易損坏,修型很費工。同时,鑄件废品率高达40％,因此对車床生产任务的完成,起了很大阻碍作用。为了保証生产任务的順利完成鑄工車間王立山,王素梅两同志,在全組同志的大力协助下,经多次試驗,終于試驗成功了半永久型潮芯造型,使生产效率提高1.5～2倍,同时改善了鑄件質量,减輕了劳动强度。
In our area engage in machine tool production campaign, I plant a large number of eight-foot lathe production tasks. Due to the dry production cycle is too long, kiln capacity is not enough, the initial use of tide-type production. However, the tide-type strength is low, part of the bed when the mold parting sand is very easy to damage, repair is very laborious. At the same time, casting scrap rate as high as 40%, so the completion of the task of lathe production, played a big hurdle role. In order to ensure the smooth completion of production tasks, the casting workshop Wang Lishan, Wang Sumei two comrades, with the full assistance of all the comrades, after many tests, and finally succeeded in testing the semi-permanent tidal core shape, the production efficiency increased by 1.5 to 2 times, at the same time Improve the quality of castings, reducing labor intensity.