发明名称 |
Method of producing dark heater |
摘要 |
A dark heater is produced by a method which comprises coating the first coating layer made of an insulating material with a suspension containing heat-resistant particles having a high thermal emissivity, such as W particles, while 0.5 to 1.5 wt. % of a volatile matter such as water remains in the first coating layer to form a dark coating layer. Since the suspension having a low viscosity can be used, the thickness of the dark coating layer can be made highly uniform and the emission characteristics of the heater can be stabilized.
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申请公布号 |
US4844942(A) |
申请公布日期 |
1989.07.04 |
申请号 |
US19860864513 |
申请日期 |
1986.05.19 |
申请人 |
HITACHI, LTD.;HITACHI NISSHIN ELECTRONICS CO., LTD. |
发明人 |
KOIZUMI, SACHIO;ICHIHARA, TERUTOSHI |
分类号 |
B05D5/00;B05D5/06;C23C2/02;C23C2/04;C23C24/08;H01J9/08 |
主分类号 |
B05D5/00 |
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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