为使毛坯件上划出的线清晰易辩,在划线之前需用毛刷在被划线表面上涂料,我们以前使用的白粉胶干燥时间夏天2小时,冬天4小时,很耽误生产。为了缩短涂料的干燥时间,我们制成了一种新涂料——快干剂。快干剂用10％的漆片水(10％的漆片加90％的酒精)加入适量的白粉子搅拌而成。快干剂放到密封的筒内能长期保存。将快干剂涂在毛坯件上6分钟以后就能划线, In order to clear the line drawn on the blank, it is necessary to paint the surface of the line to be scribed with a brush before scribing. The dry time of the white powder glue we used in the past is 2 hours in summer and 4 hours in winter, which delays production. In order to shorten the paint drying time, we made a new paint - quick-drying agent. Drying agent with 10% of the paint water (10% of the paint plus 90% alcohol) by adding the right amount of white powder stirred. Drying agent into the sealed tube can be long-term preservation. The quick-drying agent coated on the blank pieces can be crossed 6 minutes later,