Aluminium-carbon water gap for continuous casting

An aluminum-carbon, continuous casting technology, applied in foundry equipment, equipment for feeding molten metal into casting molds, manufacturing tools, etc., can solve the problems of high production cost, unfavorable environmental protection, high energy consumption, etc. And the effect of convenient transportation and low energy consumption

Inactive Publication Date: 2007-03-14
山东耐材集团中齐耐火有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of high production cost, large energy consumption and unfavorable environmental protection for the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of proportioning ratio of the parts by weight of the aluminum carbon nozzle raw material components is:

[0035] High alumina bauxite 35

[0036] flake graphite 15

[0037] Light burnt alumina 10

[0038] Metal silicon powder 2

[0039] Silicon carbide powder 3

[0040] Phenolic resin 10.

Embodiment 2

[0042] Another proportioning ratio of the parts by weight of the aluminum carbon nozzle raw material components is:

[0043] High alumina bauxite 65

[0044] Flake graphite 30

[0045] Light burnt alumina 23

[0046] Metal silicon powder 5

[0047] Silicon carbide powder 6

[0048] Phenolic resin 15.

Embodiment 3

[0050] The third proportioning ratio of the parts by weight of the aluminum carbon nozzle raw material components is:

[0051] High alumina bauxite 40

[0052] Flake graphite 30

[0053] Light burnt alumina 20

[0054] Metal silicon powder 5

[0055] Silicon carbide powder 5

[0056] Phenolic resin 13.

[0057] For the high alumina bauxite described in the above three embodiments, the particle diameter of the powder is less than 3 mm. The phenolic resin can be powder or liquid. The mud mixing and molding process after the above raw materials are mixed are the same as

[0058] current technology.

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Abstract

The invention relates to an aluminum carbon water open used in casting. Wherein, it uses baked bauxite chamotte powder to replace electro-melting corundum, to be mixed, shaped and sintered by other material. And the bauxite chamotte has abundant resource and low cost, therefore, the invention can reduce 36 million yuan/year. And the strength at normal temperature, the anti-bend strength at high temperature and the vibration resistance of water open are all improved. Since the specific weight of bauxite chamotte is lower than electro-melting corundum, it can reduce 1% weight.

Description

technical field [0001] The invention belongs to metallurgical articles, in particular to an aluminum carbon nozzle used in continuous casting production. Background technique [0002] In the process of pouring molten steel, in order to protect the cleanliness of molten steel and improve the quality of molten steel, steel mills generally adopt five stages of non-oxidative protective pouring: ① protection of molten steel in the ladle; ② protection of molten steel from ladle to tundish; ③ tundish Protection of molten steel inside; ④ Protection of molten steel from tundish to mold; ⑤ Protection of molten steel in mold. Among them, the molten steel passages from the ladle to the tundish and from the tundish to the crystallizer are protected by nozzles to prevent the secondary oxidation of the molten steel and the absorption of nitrogen from the surrounding air, and to avoid the problem of slag entrainment in open pouring. The aluminum-carbon molten steel channel used to protect ...

Claims

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Application Information

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IPC IPC(8): B22D35/04C04B35/10
Inventor 徐文相刘修和董文全王秀显吴春
Owner 山东耐材集团中齐耐火有限公司
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