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一、前言涂料在铸造生产中占有比较重要的地位,它不仅能提高铸件表面质量,阻止金属液对铸型型壁的冲刷,还可以调节铸件的冷却速度。但是,若应用得不合理,就会产生各种表面缺陷,给清理工序带来麻烦,严重的使铸件报废。我厂采用一种新型熟炭粉涂料代替传统的鳞片铅粉涂料,经过一年多的生产使用,表明这种新型熟炭粉涂料不但具有良好的物理性能,而且抗粘砂能力强,铸件的粘砂缺陷明显减少。现将这种熟炭粉涂料的使用情况介绍如下。二、熟炭粉涂料的成分及配制工艺1.成分配比见表1。
I. Introduction Paint occupies an important position in the casting production. It can not only improve the surface quality of the casting, prevent the metal liquid from scouring the mold wall, but also regulate the cooling rate of the casting. However, if applied unreasonably, various surface defects will be generated, causing troubles in the cleaning process and seriously deteriorating the castings. Our factory uses a new type of cooked charcoal paint instead of the traditional scale lead paint, after more than a year of production and use, indicating that this new type of cooked charcoal paint not only has good physical properties, and anti-sticking sand ability, castings Sticky sand defects significantly reduced. Now the use of cooked carbon powder coating are described below. Second, the composition and preparation of cooked pink coating ingredients 1. Composition ratio shown in Table 1.