Treatment of alloys专利检索-传热系数换热器专利检索查询-专利查询网

Treatment of alloys

阅读：590发布：2022-11-04

专利汇可以提供Treatment of alloys专利检索，专利查询，专利分析的服务。并且A process for the treatment of a beryllium-copper alloy to reduce or eliminate the distortion which occurs on precipitation treatment is provided in which the alloy is quenched in a medium providing a heat transfer coefficient of 150-750 B.Th.U/ft2h*F, said quenching being below the normal precipitation treatment temperature of said alloy. The invention has utility in the production of an alloy which has little or no distortion on precipitation treatment as well as a predictable contraction.，下面是Treatment of alloys专利的具体信息内容。

权利要求

2. A process as claimed in claim 1 in which the quenching is effected at a temperature of from 150*-300* C.

3. A process as claimed in claim 1 in which the molten salt comprises a nitrate.

4. A process as claimed in claim 3 in which the salt bath is a mixture of sodium nitrite and sodium and potassium nitrates having a melting point of 150* C.

5. A process as claimed in claim 4 wherein said alloy contains approximately 1.92 percent beryllium and is solution treated at about 790* C and is quenched in said bath at about 190* C for about 1 minute and then cooled to room temperature.

6. A process for producing a precipitation hardened beryllium-copper alloy containing from 1.5 to 2.2 percent beryllium by weight and up to about 0.5 percent cobalt and/or nickel, the balance being copper which comprises the steps of: (a) heating the beryllium-copper alloy to a temperature of approximately 800* C; (b) quenching said heated alloy by immersion in a molten salt quench bath at a temperature of 150*-300* C providing a heat transfer coefficient of 150-750 B.Th. U./ft2h*F until it has reached about the temperature of said bath; (c) allowing said metal alloy to cool to ambient temperature; (d) forming the alloy into a desired shape and (e) heating the alloy shape to a temperature of from 300* to 350* C for a period of approximately 2 hours.

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Treatment of alloys

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