| 发明名称 |
Bell jar of opaque quartz material, from ceramic material or glass |
| 摘要 |
Bell jar of opaque quartz material, from ceramic material or glass, which in addition to a hot zone also has a cooler zone, which is provided, on its outer surface, with a layer of glaze of a heat- reflecting metal, in particular gold. The height of the glaze extends from 5% to 30% of the overall height of the bell. As a result of the layer, stresses in the bell wall, and thus cracking of the bell, are prevented.
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| 申请公布号 |
DE3300381(A1) |
申请公布日期 |
1984.07.12 |
| 申请号 |
DE19833300381 |
申请日期 |
1983.01.07 |
| 申请人 |
HERAEUS QUARZSCHMELZE GMBH, 6450 HANAU, DE |
发明人 |
SCHUELKE, KARL ALBERT, DIPL.-ING., 6451 NEUBERG, DE |
| 分类号 |
C01B33/035;C03C17/00;C04B41/51;C04B41/88;C23C16/44;(IPC1-7):B01J19/00;C01B33/02;C03C9/00;C04B41/06;C30B35/00 |
主分类号 |
C01B33/035 |
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