Phosphate glass coating for electrical steel sheets专利检索- 烧瓷釉的连续处理;所需设备专利检索查询-专利查询网

Phosphate glass coating for electrical steel sheets
申请号	US3620779D	申请日	1970-06-15	公开(公告)号	US3620779A	公开(公告)日	1971-11-16
申请人	WESTINGHOUSE ELECTRIC CORP;			发明人	FOSTER KARL; SEIDEL JOSEPH;
摘要	A glass having a thermal coefficient of expansion of less than 8.5 X 10 6/* C. for coating steel sheets to place the steel sheets in tension, comprising, by weight, from 60 to 70 percent of P2O5 from 10 to 14 percent of MnO, from 9 to 12 percent of A12O3 and at least 5 percent of other compatible oxides.
权利要求	2. A glass of claim 1 having a thermal coefficient of expansion of less than 8.5 X 10 6/* C. suitable for coating steel sheets to place the steel sheets in tension, thereby reducing magnetostriction and strain sensitivity, having the composition: Constituent Weight Percent P205 60-70MnO 10--14Al2O3 9-12ZnO 4-7SiO2 1.5-3.5Na2O 0-2CaO 0-1As2O3 0-1V2O5 0-1 3. The glass of claim 2 wherein the amount of P2O5 is about 66 percent, by weight, the amount of MnO is about 12 percent, by weight, the amount of Al2O3 is about 10.5 percent, by weight, and the amount of ZnO is about 5.5 percent, by weight.
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