A kind of preparation method of tool for aluminum alloy smelting
An aluminum alloy and tool technology is applied in the field of preparation of aluminum alloy smelting tools, which can solve the problems of short service life, enterprise production waste, coating damage, etc., and achieve the effects of improving service life, reducing manufacturing cost and excellent performance.
Active Publication Date: 2021-08-03
苏州慧金新材料科技有限公司
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Problems solved by technology
[0002] At present, there are many kinds of tools commonly used in aluminum alloy smelting, such as slag scoops, ladle aluminum spoons, colanders, furnace plugs, hearth furnaces, discus, bell jars, etc. These tools are usually made of ordinary steel, and the quality is better. 201 high-temperature steel is used, but these materials usually cannot continue to work at high temperatures, and their oxidation and corrosion resistance are poor. Even if the surface of the tool is coated, the coating is easily damaged in a working environment with high temperature and stress damage, the service life is still very short; especially for large-scale smelting tools, because they are relatively heavy, they are often soaked in molten aluminum or at a high temperature of 800 ° C, and often perform some mechanical actions such as raking, raking, and topping. Work, the material itself is easy to soften, the allowable stress continues to decrease, and the tools are often damaged; usually after being damaged, it is difficult to recover, which causes a lot of waste in the production of the enterprise; if the high-temperature stainless steel 310S or high-temperature-resistant steel is used, the tool cost Very high, companies are unwilling to use expensive heat-resistant materials to make tools
Method used
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Embodiment 1
[0028] Take the slag rake as an example, according to the attached figure 1 Process flow chart for the preparation of aluminum alloy smelting tools.
[0029] The first step is to bake the Cr26Ni21 pure austenitic high-temperature steel electrode with the slag rake and the titanium-calcium type coating with a spray gun flame, the heating temperature is about 200-250 ° C, and the heating time is about 1 hour;
[0030] The second step is to use an electric welding machine to carry out wrap-around welding on the stress-bearing surface of the slag rake and the surface of the tool soaked in aluminum liquid. The welding is full welding, the welding of the stress-bearing surface is thicker, and the welding of the soaking surface is shallow. The key to welding is cladding welding. ;In the welding process, use DC power as much as possible, and use small current to weld quickly without swinging, and try to ensure that the thickness of the welding layer is uniform and the welding surface ...
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Abstract
The invention belongs to the field of nonferrous metal smelting, and in particular relates to a preparation method of a tool for aluminum alloy smelting. In the present invention, the surface of the aluminum alloy smelting tool of ordinary material is welded and covered by high-temperature-resistant metal material to make a composite steel. After subsequent process treatment and processing, the corrosion resistance, hardness and high temperature resistance of the aluminum alloy smelting tool are improved. It can maintain good mechanical properties, reduce material costs, and realize the use effect of heat-resistant steel with ordinary steel properties.
Description
technical field [0001] The invention belongs to the field of nonferrous metal smelting, and in particular relates to a preparation method of a tool for aluminum alloy smelting. Background technique [0002] At present, there are many kinds of tools commonly used in aluminum alloy smelting, such as slag scoops, ladle aluminum spoons, colanders, furnace plugs, hearth furnaces, discus, bell jars, etc. These tools are usually made of ordinary steel, and the quality is better. 201 high-temperature steel is used, but these materials usually cannot continue to work at high temperatures, and their oxidation and corrosion resistance are poor. Even if the surface of the tool is coated, the coating is easily damaged in a working environment with high temperature and stress damage, the service life is still very short; especially for large-scale smelting tools, because they are relatively heavy, they are often soaked in molten aluminum or at a high temperature of 800 ° C, and often perf...
Claims
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IPC IPC(8): B23K9/00B23K9/32B24B27/033C21D9/50C21D9/00
CPCB23K9/00B23K9/32B24B27/033C21D9/0068C21D9/50
Inventor 罗振宇汪时宜周银鹏陈曦徐欣罗云斌赵华
Owner 苏州慧金新材料科技有限公司