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Covering agent applicable to smelting of copper alloy containing easily oxidized alloying elements and application of covering agent

A technology of alloying elements and covering agents, which is applied in the field of covering agents, can solve problems such as unsatisfactory protection effect of easily oxidized alloying elements, difficulty in meeting technical quality requirements of covering agents, serious oxidation and burning of alloying elements, etc., and achieve easy preparation of large-scale Ingot casting, avoiding inclusions and oxidation on the surface, and the effect of less oxidized inclusions

Inactive Publication Date: 2014-01-01
洛阳双瑞达特铜有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these covering agents are widely used in industrialization, their protection effect on easily oxidized alloying elements is not ideal. The alloying elements are severely oxidized and burned, and the yield is very low. The thickness of covering agents generally reaches 10-20cm when used, which is uneconomical.
Especially in a non-vacuum environment, the existing covering agent is difficult to meet the technical quality requirements, and in the atmospheric environment, the smelting and production of copper alloys containing easily oxidizable alloying elements cannot guarantee product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment l

[0029] When producing the first furnace of 3 tons of chromium bronze alloys with easily oxidized alloy elements, take 8kg of broken glass and put it into the induction furnace and sprinkle it on the copper alloy melt. After 10 minutes, take 17kg of borax and put it into the induction furnace and sprinkle it on the copper alloy melt. body and glass overlay.

Embodiment 2

[0031] When producing the second furnace and continuous production of subsequent 3 tons of chromium bronze alloys that are easily oxidized by alloy elements, take 2kg of broken glass and put it into the induction furnace, sprinkle it on the copper alloy melt, and after 10 minutes, take 3.5kg of borax and put it into the induction furnace , sprinkled on top of copper alloy melt and glass cladding.

[0032] How to use and effect:

[0033] The equipment for smelting copper alloys adopts a large-capacity power frequency cored induction furnace, which can melt alloys such as copper and chromium, which are easily oxidized by alloy elements, in an atmospheric environment. The raw material is electrolytic copper plate, metal chromium or copper-chromium master alloy, etc. The covering agent for copper alloy smelting of the present invention is used for bottom covering. In general, when the covering agent of the present invention is used to smelt alloys such as chromium bronze, the yi...

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Abstract

The invention belongs to the technical field of copper alloy machining, and relates to a covering agent applicable to smelting of a copper alloy containing easily oxidized alloying elements, and application of the covering agent. The coving agent consists of the following components in mass percent: 50-80% of sodium borate and 20-50% of cullet, wherein the sodium borate and the cullet are added respectively, and the cullet is added firstly, and then the sodium borate is added with the time interval not less than 10 min. Through the covering agent, vacuum smelting can be replaced by common smelting, the copper alloy containing easily oxidized alloying elements can be smelted by a common electric induction furnace, large-size ingot castings can be easily prepared and continuously cast, and the alloy quality of the copper alloy subjected to smelting is better. The covering agent related to the invention has the characteristics of low cost, environmental protection and energy conservation.

Description

technical field [0001] The invention relates to a covering agent suitable for smelting copper alloys whose alloy elements are easily oxidized and an application thereof, which belongs to the technical field of copper alloy processing. Background technique [0002] Generally, during the smelting and processing of copper and copper alloys, especially when smelting CuCr and other alloy elements that are easily oxidized, a covering agent needs to be used. Currently commonly used covering agents are mainly calcined charcoal, flake graphite, carbon black, etc. Although these covering agents are widely used in industrialization, their protection effect on easily oxidized alloying elements is not ideal. The alloying elements are severely oxidized and burned, and the yield is very low. The thickness of covering agents generally reaches 10-20cm when used, which is uneconomical. . Especially in a non-vacuum environment, the existing covering agent is difficult to meet the technical q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C9/00
Inventor 詹尧张智强郜贞轩
Owner 洛阳双瑞达特铜有限公司
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