我厂各类轴承套圈打字的深度,按轴承行业的标准,要求比较严格,需测量打字字划的深度。原先接在百分表上的测量尖是用手工刃磨的,磨完已退火软化,测量用几次,尖头就圆饨了,落不到字划底部。几经改进,最后选用绣花针作测量尖。由于绣花针很尖,能轻易落到字划底部,准确测出字划深,又因它本身硬度较高,所以十分耐用,我们自选用了绣花针 I plant all types of bearing rings typing depth, according to the bearing industry standards, the more stringent requirements, the need to measure the depth of typing stroke. Originally connected to the measuring pointer on the dial is hand-sharpening, grinding has been annealed softening, measuring a few times, the tip of the round roast, and can not fall to the bottom of the word plan. After several improvements, the last selection of embroidery needle for measuring tip. Because the needle is very sharp embroidery, can easily fall to the bottom of the word stroke, accurately measured the word draw deep, because of its high hardness, it is very durable, we choose the needle