发明名称 |
Thermospray method for production of aluminium porous boiling surfaces. |
摘要 |
<p>A method for producing a porous boiling surface with exceptional adhesion qualities and mechanical strength while at the same time maintaining the high degree of open cell porosity required for effective boiling heat transfer wherein a bond coating of pure aluminum is produced using a thermospray gun to melt an aluminum wire and impinge the molten aluminum particles against the metallic substrate in an inert gas stream projected from the gun nozzle located between 2 and 4 inches from the substrate. The bond coating has a porosity of less than 15 percent and a thickness not greater than 4 mils. The nozzle to substrate distance is then increased to 4 to 10 inches and a top coating of pure aluminum is formed having a porosity greater than 18 percent and a thickness of at least four times the thickness of the bond coating.</p> |
申请公布号 |
EP0017944(A1) |
申请公布日期 |
1980.10.29 |
申请号 |
EP19800101983 |
申请日期 |
1980.04.14 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
GRANT, ANDREW CAMPBELL;KERN, JAMES WALTER |
分类号 |
B05D1/08;C23C4/02;C23C4/08;C23C4/12;F28F13/18;(IPC1-7):23C7/00;28F13/18 |
主分类号 |
B05D1/08 |
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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