Industrial fine copper surface nickel-based laser alloying layer and preparation method thereof
A laser alloying, industrially pure technology, applied in coating, metal material coating process, etc., can solve the problems of low laser absorption rate, high thermal conductivity of pure copper, etc., and achieve low preparation cost, smooth surface, uniform structure and dense effect
Active Publication Date: 2018-10-02
SHANDONG UNIV
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Problems solved by technology
[0005] However, compared with steel, titanium alloy, aluminum alloy and other materials, pure copper has a large thermal conductivity and extremely low absorption rate of laser light, so there is little research on the laser alloying layer on the surface of industrial pure copper, so it is necessary to study the surface of industrial pure copper Research on laser alloying layer in order to effectively improve the surface performance of industrial pure copper
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0069] 1. Preparation of nickel-based laser alloying layer on the surface of industrial pure copper
[0070] (1) Sample preparation
[0071] Use the DK77-40 electric discharge numerical control wire cutting machine tool to cut the industrial pure copper plate into the required size. The size of the sample used in the test is 30mm×10mm×5mm, 30mm×30mm×5mm. Use 180# water sandpaper to remove the surface scale, clean it with absolute ethanol, dry it with a hair dryer, and set it aside.
[0072] (2) Alloying powder configuration
[0073] Use Sartorious Quintix model electronic analytical balance (accuracy 0.1mg) to weigh the powder according to the experimental design plan, pour it into a plastic bottle after weighing, put it on a vortex mixer and vibrate for a certain period of time to make the powder mix evenly, classify and mark, and set aside .
[0074] (3) Preparation of prefabricated coating
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Abstract
The invention discloses an industrial fine copper surface nickel-based laser alloying layer and a preparation method thereof, and belongs to the technical field of metal material surface strengtheningand modifying. Industrial fine copper is adopted as a base material, the base material is coated with Ni60A and pure Ti powder as coating materials, and the industrial fine copper surface nickel-based laser alloying layer is prepared through laser alloying. The mass percent of the coating materials ranges 65% to 95%, and the mass percent of the purer Ti powder ranges from 5% to 35%. The preparedindustrial fine copper surface nickel-based laser alloying layer is smooth in surface, even and dense in structure and free of cracks, pores and other defects; the hardness and the wear resistance areboth remarkably improved; and the industrial fine copper surface nickel-based laser alloying layer is low in preparation cost and high in cost performance, is used for laser alloying, and has wide industrial application prospects.
Description
technical field [0001] The invention belongs to the technical field of metal material surface strengthening and modification, and in particular relates to a nickel-based laser alloying layer on the surface of industrial pure copper and a preparation method thereof. Background technique [0002] Copper and its alloys play an important role in the development of the national economy because of their good electrical conductivity, thermal conductivity, corrosion resistance at room temperature and machinability, and are widely used in the metallurgical industry, military industry, electrical industry, machinery manufacturing industry, In marine equipment and other fields, industrial pure copper accounts for a large proportion. Taking the metallurgical industry as an example, the inner surface of the copper plate of the crystallizer is in contact with boiling molten steel and molten mold slag, and the outer surface is forced to cool with water. Thermal conductivity, machinability...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C23C24/10C22C19/05
CPCC22C19/058C23C24/103
Inventor 于慧君陈传忠田蓓
Owner SHANDONG UNIV