Novel sink head brick and its processing technology

A processing technology, a new type of technology, applied in the field of riser bricks and its processing technology, can solve the problems of affecting the internal quality of castings, increasing the labor intensity of workers, and unstable feeding of risers, so as to improve the quality of castings and resist the erosion of metal liquid Powerful, lightweight effect

Inactive Publication Date: 2011-09-28
朱晓明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] On the risers of large-scale high value-added steel castings such as nuclear power, wind power, and national defense and military industries, sand risers are often used, which have poor heat insulation, high thermal conductivity, and heavy weight, which increases the labor intensity of workers during installation. Instability during feeding, inadequate feeding and feeding defects affect the intrinsic quality of castings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A new type of riser brick, including the following raw materials in weight percentage, Dong Qingshi 25%, aluminum titanate 25%, synthetic mullite 15%, wood chips 15%, polyester ball 20%.

Embodiment 2

[0019] A new type of riser brick, including the following raw materials in weight percentage, Dong Qingshi 30%, aluminum titanate 15%, synthetic mullite 20%, wood chips 10%, polyester ball 25%.

Embodiment 3

[0021] A new type of riser brick comprises the following raw materials in weight percentage: 35% cordierite, 20% aluminum titanate, 10% synthetic mullite, 20% wood chips, and 15% polyester balls.

[0022] In the above embodiments, the wood chips are poplar wood chips or pine wood chips.

[0023] Also provide a kind of processing technology of novel riser brick in addition, comprise the following steps,

[0024] 1) adopt the raw material composition shown in claim 1 to put into the die after mixing, stirring uniformly and press into adobe;

[0025] 2) The adobe undergoes three processes of shade drying, sun drying and drying to remove free water;

[0026] 3) After removing free water, the adobe is heated in a low-temperature furnace to remove crystal water;

[0027] 4) After removing the crystal water, the adobe is put into a high-temperature furnace for calcination, and after cooling in the furnace, a semi-finished brick is formed;

[0028] 5) Semi-finished bricks are cut a...

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PUM

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Abstract

The invention discloses a sink head brick, comprising the following raw materials of: 30wt%+ / -5wt% of cordierite, 20wt%+ / -5wt% of aluminium titanates, 15wt%+ / -5wt% of synthesis mullite, 15wt%+ / -5wt% of wood chip and 20wt%+ / -5wt% of polyester ball. The invention also provides a processing technology of the sink head brick. The sink head brick provided by the invention is characterized in that it has advantages of high-temperature resistance, low heat-conduction coefficient, high insulation, strong heat-insulation performance, light weight, and convenient installation; it can raise casting quality and reduce production cost; it has strong anti-metal liquid erosion capability; it can not be burned; it dose not adhere to sand and contains no binder; it does not react with molten steel and not destroy characteristics of molten steel tissues.

Description

technical field [0001] The invention relates to a riser brick and its processing technology. Background technique [0002] On the risers of large-scale high value-added steel castings such as nuclear power, wind power, and national defense and military industries, sand risers are often used, which have poor heat insulation, high thermal conductivity, and heavy weight, which increases the labor intensity of workers during installation. Instability during feeding, insufficient feeding and feeding defects affect the intrinsic quality of castings. Contents of the invention [0003] The problem to be solved by the present invention is to provide a riser brick with simple process and convenient manufacture and its processing technology, high temperature resistance, low thermal conductivity, high heat preservation, strong heat insulation, light weight and convenient installation. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 徐华辉
Owner 朱晓明
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