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Crucible for magnesium alloy smelting and machining method thereof

A processing method and magnesium alloy technology, which is applied to crucible furnaces, lighting and heating equipment, furnaces, etc., can solve the problems of large surfacing welding area, difficulty in grinding, and easy oxidation reaction of welds

Inactive Publication Date: 2005-12-28
潘程
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  • Abstract
  • Description
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Problems solved by technology

[0003] Aiming at the existing crucible used for magnesium alloy melting, it is difficult to polish due to the large surfacing welding area; and because the crucible works under high temperature conditions for a long time, the weld seam is prone to oxidation reaction, and the service life of the crucible is short. The invention provides Another crucible for smelting magnesium alloys can work under high temperature conditions for a long time and has a long service life. For this reason, the present invention also provides a processing method for the crucible for smelting magnesium alloys

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  • Crucible for magnesium alloy smelting and machining method thereof

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Embodiment Construction

[0015] See figure 1 , the present invention comprises crucible body 1, crucible bottom 2, and crucible body 1, crucible bottom 2 comprise two layers respectively, and its outer layer is high-alloy steel; Its inner layer is the 20# common carbon steel that contains W, Mo low alloying, The crucible body 1 is fitted with the crucible bottom 2 .

[0016] Process method of the present invention will be further described below in conjunction with embodiment:

[0017] The alloy material is melted in an intermediate frequency furnace or an electric furnace, the melting temperature is 1620-1680 degrees Celsius, the optimum temperature is 1650 degrees Celsius, the composition ratio of the alloy material: C 0.06%-0.08%, Si 0.4%-1.3%, Ni 31%-32% , Cr 19%-21%, Mn 0.73%-0.75%, S 0.03%-0.05%, P 0.04%-0.06%, Cu 0.09%-0.11%, Fe46%-48%, Al 0.22%-0.24%; Optimal proportioning ratio: C 0.07%, Si 0.85%, Ni 31.5%, Cr 20%, Mn 0.74%, S 0.04%, P 0.05%, Cu 0.1%, Fe 47%, Al 0.23%; at the same time in a...

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Abstract

A crucible for smelting Mg alloy is composed of a crucible body and a crucible bottom, which consist of external high-alloyed steel layer and internal low-alloyed ordinary carbon steel No.20 layer containing W and Mo. Its preparing process includes such steps as smelting high-alloyed steel, smelting said low-alloyed steel, making crucible bottom, making crucible body, and embedding.

Description

(1) Technical field [0001] The invention relates to a crucible for smelting magnesium alloys, and also relates to a processing method for the crucible for smelting magnesium alloys. (2) Background technology [0002] The existing crucible used for melting magnesium alloys has an inner layer of low-carbon steel and an outer layer of stainless steel. It is usually made by two processes. One is to weld a low-carbon steel plate to make a crucible, and then to form a low-carbon steel crucible. The outer surface of the crucible is uniformly surfacing stainless steel, and the other is to weld a stainless steel plate to make a crucible, and then evenly surfacing low-carbon steel on the inner surface of the formed stainless steel crucible. Since another layer of metal is surfacing on the surface of one layer of metal, the area of ​​surfacing welding is relatively large and it is difficult to polish; and the crucible works under high temperature conditions for a long time, the weld is...

Claims

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Application Information

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IPC IPC(8): F27B14/10
Inventor 潘程赵志祥
Owner 潘程
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