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磨刮刀是刮研项目中主要工作之一,能把刮刀磨得好,刮削就很顺利。所以经常保持刮刀刃口的锋利,才能提高刮研效率。不过我们所采用的刮刀多个是用碳工具钢制成;用碳工具钢制成的刮刀用起来固然经济,但美中不足的就是耐磨性较差。根据我们实际经验,差不多在二十分钟左右就要磨一次刮刀。刮刀有各种不同的磨法,有的用磨石或油石磨的,也有用砂轮磨完后再用油石磨,总之磨法不一。目前我们采用苏联长扳式刮刀是用砂轮磨后再不经任何细磨就直接刮削工件。这个办法
Grinding scraper is one of the main work scraping research project, can scraper grinding well, scraping is very smooth. So often keep the blade edge sharp, in order to improve scraping efficiency. However, we use a number of scrapers made of carbon tool steel; with carbon tool steel scraper used to be economical, but the fly in the ointment is the poor wear resistance. According to our practical experience, it is necessary to grind a scraper in about 20 minutes. Scrapers have a variety of grinding method, and some with millstone or oil stone mill, grinding wheel is also useful after the oil stone mill, in short grinding method varies. At present we use the Soviet long pull scraper is grinding wheel and then without any fine grinding directly scraping the workpiece. This approach