Casting method for compounding high-strength super-wear-resistant copper alloy on surface of steel base and composite alloy and application thereof

Abstract

The invention discloses a casting method for compounding a high-strength super-wear-resistant copper alloy on the surface of a steel base and the composite alloy and application of the composite alloy, and the casting method comprises the following steps: melting the copper alloy, casting the molten copper alloy on the surface of the steel base subjected to surface cleaning and preheating treatment, and then preserving the heat until the temperature of the steel base reaches over 1100 DEG C; and finally, the steel base body is taken out to be subjected to high-frequency vibration and / or centrifugal treatment. The copper alloy used in the casting method is high in strength and super-strong in wear resistance, the copper alloy can be more easily and tightly combined with a steel substrate through chemical components of the copper alloy, and the common technical problems that in an existing steel-copper composite technology, the product composite interface strength is not high, the comprehensive mechanical performance is not enough, and the service life is too short can be solved; through post-treatment, the steel matrix and the copper alloy can be combined more tightly and uniformly, the composite interface strength is improved, the comprehensive performance of the product is improved, and the technical problems of too short service life, high-temperature failure, high-temperature locking and the like of the product in the current civil or sharp special industry can be thoroughly solved.

Description

technical field [0001] The invention belongs to the technical field of metal alloy forging, and more specifically relates to a casting method of a steel-based surface composite high-strength super-wear-resistant copper alloy, the composite alloy and its application. Background technique [0002] At present, the commonly used copper alloys are mostly cast copper alloys, and most of the components such as worm gears, nuts, and sliding guide bushes are used in combination with steel bases and copper alloys by methods such as inlaying. With the progress of society and the development of manufacturing industry, higher requirements are put forward for the use environment, working speed, bearing capacity, precision and temperature resistance of castings than traditional machinery. [0003] Although some practical copper alloys such as high-strength and ultra-wear-resistant copper alloys have been developed, but due to defects such as low melting point and low comprehensive mechanic...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a casting method for composite high-strength super-wear-resistant copper alloy on the surface of steel base and its composite alloy and its application, which can completely solve the problem of low composite interface strength of products in the prior art, Common technical problems such as insufficient comprehensive mechanical properties and too short service life; at the same time, this casting method does not require excessive cleaning such as complicated alkali boiling and pickling, and does not need to spray anti-oxidants such as borax solution or immerse copper. It has simple procedures and easy operation specialty

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