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Vacuum melting furnace for purifying high-purity oxygen-free copper

A vacuum smelting furnace and oxygen-free copper technology, applied in electric furnaces, crucible furnaces, rotary drum furnaces, etc., can solve the problems of low degree of automation, power cannot meet process requirements, and cannot effectively remove metal impurities, etc., to achieve performance consistency Good, less melting loss, the effect of product quality assurance

Pending Publication Date: 2022-04-12
CHENGDU HONGHUA ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing vacuum melting furnaces generally have a low degree of automation, and the power may not meet the process requirements during the melting process, and the metal impurities cannot be effectively removed during the metal purification process, so further improvement is needed

Method used

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  • Vacuum melting furnace for purifying high-purity oxygen-free copper
  • Vacuum melting furnace for purifying high-purity oxygen-free copper
  • Vacuum melting furnace for purifying high-purity oxygen-free copper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In this example, if figure 1 As shown, a vacuum melting furnace for the purification of high-purity oxygen-free copper includes a feeding bin, a regional melting chamber and a control mechanism; the control mechanism includes a console, a controller and a host computer, and the controller is set on the console to control The feeder is connected with the upper computer; the feeding bin is equipped with a vibrating feeder, and the vibrating feeder is connected to the controller; a regional melting furnace is fixedly installed inside the regional melting room, and the entrance of the regional melting furnace is connected with the outlet of the feeding bin; the pouring room is equipped with A columnar crystal directional crystallization chamber, the entrance of the columnar crystal directional crystallization chamber is connected to the outlet of the regional melting furnace, the inner wall of the columnar crystal directional crystallization chamber is inlaid with a condense...

Embodiment 2

[0032] In this embodiment, the structure and working principle of the regional smelting furnace are mainly designed in detail.

[0033] In this embodiment, the regional smelting furnace includes a furnace body, an electron gun, a driving device and a vacuum system; the furnace body is circular and adopts a double-layer water-cooled jacket structure. One end of the furnace body is a double-layer head structure, and the other end is provided with a furnace The door; the electron gun is arranged inside the furnace body; the controller is respectively connected with the electron gun, the driving device and the vacuum system.

[0034]In the process of electron beam zone melting, X-rays will be generated when high-speed electrons bombard metal materials. In order to prevent X-rays from harming operators, effective shielding and protection measures must be taken, and parts that meet the requirements must be used. The furnace body is made of stainless steel, and the parts connected to...

Embodiment 3

[0043] In this example, the electron beam zone melting device in the zone melting furnace is designed on the basis of the equipment provided in Example 1 and Example 2.

[0044] In this embodiment, the regional smelting furnace includes a furnace body, an electron gun, a driving device and a vacuum system; the furnace body is circular and adopts a double-layer water-cooled jacket structure. One end of the furnace body is a double-layer head structure, and the other end is provided with a furnace The door; the electron gun is arranged inside the furnace body; the controller is respectively connected with the electron gun, the driving device and the vacuum system.

[0045] In the process of electron beam zone melting, X-rays will be generated when high-speed electrons bombard metal materials. In order to prevent X-rays from harming operators, effective shielding and protection measures must be taken, and parts that meet the requirements must be used. The furnace body is made of ...

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Abstract

The invention discloses a vacuum melting furnace for purifying high-purity oxygen-free copper. The vacuum melting furnace comprises a feeding bin, a zone melting chamber and a control mechanism. The control mechanism comprises a console, a controller and an upper computer, the controller is arranged on the console, and the controller is connected with the upper computer; a vibration feeder is arranged in the feeding bin and connected with the controller. A zone smelting furnace is fixedly mounted in the zone smelting chamber, and an inlet of the zone smelting furnace is connected with an outlet of the feeding bin; a column crystal orientation crystallization cavity is formed in the pouring chamber, an inlet of the column crystal orientation crystallization cavity is communicated with an outlet of the zone melting furnace, a condensation pipe is embedded in the inner wall of the column crystal orientation crystallization cavity, and a water inlet pipe and a water outlet pipe are installed on the outer wall of the column crystal orientation crystallization cavity; and the other end of the condensation pipe is communicated with the water outlet pipe. By means of the method, metal impurities and gas in the copper rod can be effectively removed, the purity of oxygen-free copper is improved, and the melting loss of alloy components in the crystallization technological process can be small.

Description

technical field [0001] The invention relates to the technical field of high-purity copper processing, in particular to a vacuum melting furnace for purifying high-purity oxygen-free copper. Background technique [0002] The world's first vacuum induction furnace was built in Germany in 1917 to melt engines for aircraft and rocket engines. Vacuum induction melting furnace is one of the most widely used equipment in the field of vacuum metallurgy. Facts have proved that a considerable proportion of alloys and special steels required by aerospace, missiles, rockets, atomic energy equipment and electronics industries are produced by vacuum induction melting furnaces, for example, nickel-based, cobalt-based, and iron-based superalloys When smelted in a vacuum induction melting furnace, its thermal processing performance and mechanical properties are significantly improved. Stainless steel, heat-resistant steel, ultra-high-strength steel, tool steel, bearing steel, as well as ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00C22B9/04
Inventor 韦建敏张晓蓓赵兴文刘正斌张小波
Owner CHENGDU HONGHUA ENVIRONMENTAL SCI & TECH CO LTD
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