A kind of preparation method of stainless steel metal welding material

Abstract

A method for preparing a stainless steel metal welding material, comprising the following specific steps: S1, weighing raw material powders to be mixed according to parts by weight; S2, adding the weighed raw material powders into a mixing system for mixing; the mixing process is: The group raw material powder is put into the storage box, the powder in the storage box is discharged by the automatic discharge component, and the high-pressure gas is blown into the mixing box; the raw material powder is mixed in the mixing box and returned to the storage box, repeat the above Process: After the raw material powder is mixed evenly, the raw material powder discharged into the mixing box enters the collection box; S3, taking out the evenly mixed raw material powder; S4, weighing the evenly mixed raw material powder and heating and melting to obtain molten raw material; S5. The molten raw material is dropped into cold water to solidify and form, and the metal welding material is obtained after screening. The preparation process of the invention is simple and the mixing effect of various raw materials is good, which can ensure the uniformity of the quality of metal welding materials.

Description

technical field [0001] The invention relates to the technical field of metal welding materials, in particular to a preparation method of stainless steel metal welding materials. Background technique [0002] Stainless steel is the abbreviation of stainless and acid-resistant steel. The steel that is resistant to weak corrosive media such as air, steam, and water or has stainless steel is called stainless steel. The steel grade is called acid-resistant steel; with the requirements of high-strength and weight-reducing structure design, ultra-high-grade stainless steel products are widely used; the welding material of stainless steel products is particularly important in the welding process, and the wettability of the welding material is easy to be poor during the welding process. This leads to the formation of defects such as pores, inclusions, and micro-cracks in the local position of the weld, resulting in low connection strength and poor air tightness of the welded joint. I...

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Problems solved by technology

[0002] Stainless steel is the abbreviation of stainless acid-resistant steel, and the steel grades that are resistant to weak corrosive media such as air, steam, water, or have stainless properties are called stainless steel; The steel type is called acid-resistant steel; with the requirements of high-strength and weight-reducing structural design, ultra-high-grade stainless steel products are widely used; welding materials for stainless steel products are particularly important in the welding process, and the wettability of welding materials is poor during welding. It leads to the formation of pores, inclusions, micro-cracks and other defects in the local position of the weld, resulting in low connection strength and poor air tightness of the welded joint. In the production process of welding materials, it is necessary to mix various raw material powders, but the existing raw material mixing method In the process, the efficiency of uniform mixing of raw materials is low, and the mixing effect is poor, which makes the quality of the final welding material uneven, which in turn causes defects in the welding joints of stainless steel products

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