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调整砂轮硬度的苏联先进经验,给了我们很大的帮助。我厂有一度加工一批材料,经过了磨床加工,加工面产生不光及退火等缺陷。这时市场上既买不到砂轮,库存的硬度又不合,造成砂轮的缺乏问题,使生产无法进行。幸而见到本刊孔一唐同志介招了调整砂轮硬度一文后,就按照其法进行了几次试验,效果良好。这样就解决了一时供应不及的困难和资金的积压。我们试验的都是减低砂轮硬度,结合剂为粘土,成份为氧化铝(Al_2O_3)。兹将
The Soviet advanced experience in adjusting the hardness of grinding wheels has given us great help. I have a factory processing a group of materials, after the grinder processing, processing, not only produce annealing and other defects. At this time the market can not buy the wheel, the hardness of the stock does not fit, resulting in the lack of wheel, so that production can not be carried out. Fortunately, I saw a publication of Comrade Kong Yitang introduced a text grinding wheel hardness, according to its method of several tests, the effect is good. This solves the temporary supply shortage of funds and the backlog. Our experiments are to reduce the hardness of the wheel, the binder is clay, the composition of alumina (Al_2O_3). Will be