发明名称 |
PROCEDE DE FABRICATION D'UN DIELECTRIQUE EN VERRE TREMPE POUR ISOLATEUR ELECTRIQUE ET ISOLATEUR EN RESULTANT |
摘要 |
A tempered glass dielectric material for use as an electrical insulator is thermally tempered to produce surface compression between 200 MPa and 400 MPa. At least part of the material is then chemically tempered under conditions of temperature and duration such that the surface compression due to the thermal tempering is reduced by between 50% and 80%. The chemical tempering is effected by applying to the relevant part of the material, at ambient temperature, a solution containing alkaline salts. This solution is dried and the material then heated for several hours at a temperature between 300 DEG C. and 500 DEG C. The solution has the following composition (in percentage by weight): -H2O 70% to 90% -Starch 2% to 10% -KNO3 4% to 12% - K2HPO4 + KCl + K2SO4 4% to 20% - |
申请公布号 |
FR2515635(B1) |
申请公布日期 |
1986.03.14 |
申请号 |
FR19810020297 |
申请日期 |
1981.10.29 |
申请人 |
CERAVER |
发明人 |
LAURENT PARGAMIN, JEAN-PAUL PARANT, HENRI SAISSE, ET MICHEL CORNEBOIS;PARANT JEAN-PAUL;SAISSE HENRI;CORNEBOIS ET MICHEL |
分类号 |
H01B3/02;C03B27/00;C03C21/00;H01B3/08;(IPC1-7):C03C27/06 |
主分类号 |
H01B3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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