A kind of passivation method of nickel-magnesium alloy
A nickel-magnesium alloy, qualified technology, applied in metal processing equipment, metal material coating technology, transportation and packaging, etc., can solve problems such as easy foaming, and achieve the effects of environmental protection, short passivation cycle and simple method
Active Publication Date: 2019-02-12
WUHAN TEMO WELDING CONSUMABLES CO LTD
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[0005] The purpose of the present invention is to provide a passivation method for nickel-magnesium alloys, passivate the surface of nickel-magnesium alloys, and overcome the problem that existing nickel-magnesium alloys are prone to foaming in the production process of welding rods
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] This embodiment provides a passivation method for nickel-magnesium alloys. Potassium permanganate and water are used as two raw materials. Potassium permanganate is poured into water according to the proportion and fully stirred so that potassium permanganate is fully dissolved in water. Make a certain concentration of potassium permanganate solution, then fully mix the potassium permanganate solution with the granular nickel-magnesium alloy, and put it ...
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The invention provides a passivation method for nickel-magnesium alloys, comprising the following steps: 1) mixing potassium permanganate with water to prepare a certain concentration of potassium permanganate solution; 2) mixing potassium permanganate solution with granular The nickel-magnesium alloy is stirred and mixed evenly; 3) the mixture of potassium permanganate solution and nickel-magnesium alloy is dried in a low-temperature furnace. The passivation method of the nickel-magnesium alloy chemically passivates the nickel-magnesium alloy through potassium permanganate solution, the method is simple, and the passivated nickel-magnesium alloy can be directly used for mass production of welding rods, and when used for mass production of welding rod workshops, Its appearance meets the requirements of relevant standards, and there is no phenomenon such as foaming.
Description
technical field [0001] The invention belongs to the technical field of welding material processing, and in particular relates to a passivation method for granular nickel-magnesium alloy used in welding material production. Background technique [0002] In the process of developing high-strength steel matching electrodes, the phenomenon of large fluctuations in mechanical properties often occurs when using ferro-titanium and ferrosilicon for deoxidation. After analysis, this is mainly related to the fact that the deoxidation products are acidic oxides during welding. The use of alkaline strong deoxidizer for early deoxidation can effectively avoid the phenomenon of large fluctuations in the mechanical properties of weld metal, and is more conducive to the debugging and optimization of product formula. [0003] As a strong alkaline deoxidizer, magnesium powder mainly plays the role of early deoxidation in the deoxidation process, and can effectively remove O and N content. How...
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IPC IPC(8): C23C22/05C23C22/73C22C19/03B22F1/00C21C7/06
CPCC21C7/06C22C19/03C23C22/05C23C22/73B22F1/145C23C22/68
Inventor 李磊韩海峰程伟平徐文福刘玉双田海成张亚平
Owner WUHAN TEMO WELDING CONSUMABLES CO LTD