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Red copper welding agent and red copper welding method

A welding method and flux technology, applied in the direction of welding/welding/cutting items, welding medium, welding equipment, etc., can solve problems such as short service life, hot cracks, and difficult quality assurance, so as to improve service life and broad application prospects Effect

Inactive Publication Date: 2013-01-02
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the welding performance of red copper is poor, and the following problems are prone to occur: 1. It is difficult to fuse and deform; 2. It is easy to generate pores; 3. It is prone to thermal cracks; 4. The mechanical properties of welded joints are low.
The use of ordinary electrode arc welding to manufacture copper crystallizers is not only inefficient, but also difficult to guarantee quality, and the service life is short (the service life is about 1000 furnace times)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 Adopt welding agent of the present invention to weld red copper crystallizer

[0019] The welding flux is composed of: by weight, 45 parts of manganese powder, 6 parts of ferrosilicon powder (iron 25wt%), 4 parts of quartz powder, 12 parts of fluorite powder, 8 parts of graphite, and 25 parts of water glass.

[0020] After heating the ferrosilicon powder for many times, cool it quickly with soft water to remove impurities, then add water glass and other ingredients, add soft water according to the degree of thickness and stir evenly, sand the surface of ∮ 6 copper strips to remove oxides and oil stains, Spread the powder evenly on it to a thickness of 0.5-1 mm, then bake at 300 degrees for 1 hour on low heat to make strip-shaped electrodes with a length of 400 mm.

[0021] Weld the red copper crystallizer with this welding rod and the welding method of the present invention. After testing, the crystallizer has no defects such as cracks, pores, and incomple...

Embodiment 2

[0022] Embodiment 2 Using the flux of the present invention to weld the red copper crystallizer

[0023] The welding flux is composed of: by weight, 55 parts of manganese powder, 8 parts of ferrosilicon powder (iron 20wt%), 8 parts of quartz powder, 10 parts of fluorite powder, 4 parts of graphite and 15 parts of water glass.

[0024] After heating the ferrosilicon powder for many times, cool it quickly with soft water to remove impurities, then add water glass and other ingredients, add soft water according to the degree of thickness and stir evenly, sand the surface of ∮ 6 copper strips to remove oxides and oil stains, Spread the powder evenly on it to a thickness of 0.5-1 mm, then bake at 300 degrees for 1 hour on low heat to make strip-shaped electrodes with a length of 400 mm.

[0025] Weld the red copper crystallizer with this welding rod and the welding method of the present invention. After testing, the crystallizer has no defects such as cracks, pores, and incomplete...

Embodiment 3

[0026] Embodiment 3 Using the flux of the present invention to weld the red copper crystallizer

[0027] The welding flux is composed of: by weight, 50 parts of manganese powder, 8 parts of ferrosilicon powder (iron 30wt%), 6 parts of quartz powder, 8 parts of fluorite powder, 6 parts of graphite, and 22 parts of water glass.

[0028] After heating the ferrosilicon powder for many times, cool it quickly with soft water to remove impurities, then add water glass and other ingredients, add soft water according to the degree of thickness and stir evenly, sand the surface of ∮ 6 copper strips to remove oxides and oil stains, Spread the powder evenly on it to a thickness of 0.51 mm, then bake at 300 degrees for 1 hour on low heat to make strip-shaped electrodes with a length of 400 mm.

[0029] Weld the red copper crystallizer with this welding rod and the welding method of the present invention. After testing, the crystallizer has no defects such as cracks, pores, and incomplete ...

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PUM

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Abstract

The present invention relates to a red copper welding agent and a red copper welding method, which belongs to a welding field. The present invention provides a red copper welding agent which can improve the welding effect of red copper. The present invention also provides a red copper welding method. The red copper welding agent is composed of the following components by weight: 45 to 55 shares of manganese powder, 6 to 8 shares of silicoferrite powder, 4 to 8 shares of SiO2, 8 to 12 shares of CaF2, 4 to 8 shares of graphite, and 15 to 25 shares of water glass. Red copper equipment has no condition, such as hot creaking, air hole, incomplete fusion and the like, after being welded by the red copper welding agent and the red copper welding method; the use life of the red copper equipment after being welded can be largely prolonged, and the use life of a red copper crystallizer can be prolonged to more than 2000 furnace times from 1000 furnace times.

Description

technical field [0001] The invention relates to a red copper soldering agent and a red copper welding method, belonging to the field of welding. Background technique [0002] The material of the copper crystallizer is industrial pure copper, which is often used in the metal smelting industry. However, the welding performance of red copper is poor, and the following problems are prone to occur: 1. It is difficult to fuse and deform; 2. It is easy to generate pores; 3. It is prone to thermal cracks; 4. The mechanical properties of welded joints are low. Therefore, the service life of the copper crystallizer is generally not long, and it needs to be repaired every once in a while. [0003] The red copper crystallizer used in electroslag furnace smelting has a welding seam length of about 2800mm, and it has been under high temperature and high pressure conditions for a long time (the molten steel temperature in the crystallizer reaches 1800-1900 degrees, and the inner lining la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K9/00B23K103/12
Inventor 冷真强
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES