我厂铸工车间历年来一直使用黑色石墨粉、酸性陶土、糖浆配制成的塗料其配方(%)如下:黑色石墨粉,100;酸性陶土,0．5;糖浆,6．0;水,适量;比重(用波梅氏比重计测定), 1．45~1.50。这种塗料在使用过程中存在着如下三个问题:1．塗料中石墨粉容易沉淀。用时必须在塗料搅拌机中再混,使共均匀后方可使用。但使用时仍有沉淀现象;2．塗料中由于有糖浆,因而在高温季节容易发酵,虽加蚁酸,稍不注意 Over the years, our factory has been using black graphite powder, acid clay, syrup prepared from the paint formula (%) is as follows: black graphite powder, 100; acid clay, 0.5; syrup, 6.0; Specific gravity (Pomegranate hydrometer), 1.45 ~ 1.50. This paint in the course of the existence of the following three questions: 1. Graphite powder coating easy to precipitate. Use must be mixed in the paint mixer to make a total of uniform before use. However, there are still precipitation phenomenon; 2. Paint due to the syrup, which is easy to ferment in the hot season, although added formic acid, a little noticed