发明名称 |
Method of depositing a thermally sprayed coating onto metal substrates |
摘要 |
<p>A method of thermally spraying a coating onto the interior of a cylindrical surface which coating is graded between enhanced optimal machinability and enhanced wear resistance. The method comprises the steps of; (a) preparing a cylindrical bore surface of a light metal substrate cleansed of grease and oils and modified to alter any oxide film present thereon; (b) thermally spraying a deposit of metallic droplets or particles onto the prepared bore surface using metal wire or powder feedstocks (low carbon steel or stainless steel) and a primary atomising gas that projects the droplets or particles as a spray, the droplets or particles having a chemistry capable of metallurgically bonding with the metal of the substrate, the spray being positioned to lay down a generally uniform coating of such droplets or particles; and (c) varying the chemical content of the atomising gas in two or more stages to proceed from essentially a metal droplet oxide-forming gas (air or oxygen) to essentially an inert or non-oxidising gas (nitrogen or argon) relative to the droplets or particles. <IMAGE></p> |
申请公布号 |
EP0816527(A1) |
申请公布日期 |
1998.01.07 |
申请号 |
EP19970303938 |
申请日期 |
1997.06.06 |
申请人 |
FORD MOTOR COMPANY LIMITED;FORD FRANCE S. A.;FORD-WERKE AKTIENGESELLSCHAFT |
发明人 |
ZALUZEC, MATTHEW J.;JOAQUIN, ARMANDO M.;POPOOLA, OLUDELE O. |
分类号 |
C23C4/16;C23C4/02;(IPC1-7):C23C4/16;C23C4/10 |
主分类号 |
C23C4/16 |
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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