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Technology for smelting and casting C18150 alloy under atmosphere condition

A technology of alloy process and atmospheric conditions, which is applied in the field of smelting and casting C18150 alloy process under atmospheric conditions, can solve the problems of unstable chemical composition content, large investment, uneven distribution and other problems of non-vacuum method, so as to reduce raw material consumption and metal loss , the effect of low labor intensity

Active Publication Date: 2016-05-04
SHENYANG NONFERROUS METALS PROCESSING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of large investment in equipment for the traditional vacuum method and unstable and uneven distribution of chemical components in the non-vacuum method. It has flexible operation, improves the metallurgical quality of the ingot, and makes the chemical composition of the ingot uniform without segregation and fine grain size. , No metallurgical defects, good surface quality, improve production efficiency, reduce production costs, and form industrialized mass production

Method used

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  • Technology for smelting and casting C18150 alloy under atmosphere condition
  • Technology for smelting and casting C18150 alloy under atmosphere condition
  • Technology for smelting and casting C18150 alloy under atmosphere condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Adopt the present invention to produce C18150 (chromium zirconium copper alloy) ∮ 223mm round ingot.

[0047] Require.

[0048] The newly built furnace is over-produced for no less than 3 days in the early stage, and then goes to produce chrome-zirconium-copper alloy.

[0049] The crystallizer is circular, with a diameter of ∮227mm, and the dummy head extends into 1 / 3 of the mold from the direction of the ingot exit.

[0050] Chromium zirconium copper alloy operation process.

[0051] Ingredients—furnace loading—adding covering agent for copper alloy smelting—melting—adding copper-chromium master alloy—heating and melting—scalding burner head—sampling analysis—adding copper-magnesium master alloy for deoxidation—adding copper-zirconium master alloy—standstill—sampling analysis, Adjust the composition - hot burner head - casting.

[0052] Process control conditions.

[0053] a. Baking covering agent.

[0054] Covering agent for copper alloy smelting, fully dried bef...

Embodiment 2

[0068] Adopt the present invention to produce ∮253mm round ingot.

[0069] Require.

[0070] The newly built furnace is over-produced for no less than 3 days in the early stage, and then goes to produce chrome-zirconium-copper alloy.

[0071] The crystallizer is circular, with a diameter of ∮258mm, and the dummy head extends into 1 / 3 of the mold from the direction of the ingot exit.

[0072] Chromium zirconium copper alloy operation process.

[0073] Ingredients—furnace loading—adding covering agent for copper alloy smelting—melting—adding copper-chromium master alloy—heating and melting—scalding burner head—sampling analysis—adding copper-magnesium master alloy for deoxidation—adding copper-zirconium master alloy—standstill—sampling analysis, Adjust the composition - hot burner head - casting.

[0074] process control.

[0075] a. Baking covering agent.

[0076] Covering agent for copper alloy smelting, fully dried before use, the process is 500 ℃ / 5-6 hours, after dryi...

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Abstract

A technology for smelting and casting a C18150 alloy under the atmosphere condition comprises steps as follows: (1), furnace casting, baking and sintering: a basic refractory material is to be selected as a furnace liner material, acid refractory materials such as silica sand and the like cannot be utilized, and the operational process is as follows: furnace forging, furnace baking and sintering; (2), smelting and casting: a, baking of a covering agent, b, blending, c, smelting, d, casting, e, checking, f, sawing and g, warehousing. According to the technology for smelting and casting the C18150 alloy under the atmosphere condition, the problem of burning loss of Cr and Zr is solved fundamentally, meanwhile, melts are purified, consumption of raw materials is reduced, the production cost is greatly reduced, the ingot metallurgy quality is improved, the defects of pores, impurity inclusion, slag inclusion and the like caused by air absorption and oxygen absorption due to adoption of a traditional method for conveying molten metal by a launder are overcome, the ingot quality is improved, the technology further has the advantages of small occupied space, low labor intensity, low metal loss and the like, and low-cost production is realized truly.

Description

technical field [0001] The invention relates to a method for smelting and casting alloys, in particular to a process of smelting and casting C18150 (chrome-zirconium-copper alloy) under atmospheric conditions, especially to a process for sintering a casting furnace and an oven, emphasizing that the furnace materials must be It is a basic refractory material. During smelting, a covering agent for copper alloy smelting is added to the melt. Chromium and zirconium are added into the furnace in the form of an intermediate alloy. During casting, a vertical undercurrent semi-continuous method is used to cast round ingots. Background technique [0002] C18150 (chrome-zirconium copper alloy) is a high-performance copper alloy material that has been vigorously developed during the 12th Five-Year Plan period in my country due to its high strength and high conductivity and a wide range of applications. It has high technical added value but is difficult to produce. In my country, chromi...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C1/03
CPCC22C1/03C22C9/00
Inventor 于丙宏董艳霞于健闻王永胜
Owner SHENYANG NONFERROUS METALS PROCESSING CO LTD
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