一、前言各种涂料,对钢锭表面质量的影响殊为重大,而钢锭表面质量又影响钢材性能,尤以冷弯一项最甚。本次试验,熔炼了十多炉钢,均于第三板锭模,涂以不同涂料。1、2、3、4锭模涂以100%焦油,另加木框;5、6、7、8锭模涂以30%沥青,70%柴油混合液,另加木框;9、10、11、12锭模不予涂油,加以焦油煮过的木框;13、14、15、16锭模涂以33% First, the preface Various coatings, the impact on the surface quality of steel ingot is particularly significant, and the surface quality of steel ingot also affect the performance of steel, especially cold-bending one of the most. The test, melting more than a dozen furnaces, are in the third plate ingot mold, painted with different coatings. 1, 2, 3, 4 ingots coated with 100% tar, plus wood frame; 5,6,7,8 die coated with 30% asphalt, 70% diesel mixture, 11, 12 die not oiled, with tar boiled wooden frame; 13,14,15,16 die coated with 33%