刮削工作是一项极繁重的体力劳动。为了能以机械刮削代替手工刮削,根据液体的不可压缩性,试制成了一把机动刮刀(如图1)。经实际使用证明,其操作方便,性能良好,可刮削平面、燕尾等工件,精度可达每平方吋20个点。这种刮刀可以坐着操作,拿在手中部分体积很小,重量不到0.5公斤,因此大大地降低了劳动强度,提高了生产率。现已正式投 Shaving work is a very heavy manual labor. In order to be able to use mechanical scraping instead of manual scraping, according to the liquid incompressibility, trial made a maneuver scraper (Figure 1). The actual use of proof, its easy operation, good performance, scraping plane, dovetail and other parts, the accuracy of up to 20 points per square inch. This scraper can sit and operate, holding part of the small volume in the hand, weighs less than 0.5 kg, thus greatly reducing labor intensity and increase productivity. Now officially cast