Composition for ceramics with carbon layer and manufactured method of ceramics using this

A composition and ceramic technology, applied in the field of manufacturing ceramic casting molds, can solve the problems of complicated operation, multi-fuel cost, uneconomical, etc., and achieve the effects of uniform emission of far-infrared rays, excellent thermal insulation properties, and high heat resistance

Inactive Publication Date: 2010-02-10
金九汉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a method has the disadvantage of complicating the operation because different heat sources must be provided, and expensive reducing flames must be used (a reducing flame at a certain temperature requires more fuel costs and a longer time than an oxidizing flame). The heating time) makes it not economical
In addition, more attention must be paid to the supply of the oxidizing flame, because even the internal carbon bodies may gasify if the oxidizing flame is supplied for a long time

Method used

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  • Composition for ceramics with carbon layer and manufactured method of ceramics using this
  • Composition for ceramics with carbon layer and manufactured method of ceramics using this
  • Composition for ceramics with carbon layer and manufactured method of ceramics using this

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Experimental program
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Effect test

Embodiment 1

[0039] The compositions were mixed at the ingredient ratios described in Table 1 below, and formed into brick-shaped and plate-shaped molds, and then the formed molds were fired in a kiln with an oxidizing flame at 1200°C.

[0040] Table 1

[0041]

[0042] Photographs taken of a section of a ceramic mold after firing are shown in figure 1 and 2 middle. Observation of each cross-section confirmed that the ceramic casting mold of the present invention was formed into a double structure having a carbon black layer therein.

Embodiment 2

[0044] The compositions were mixed at the ingredient ratios described in Table 1 in Example 1, and formed into a furnace shape, and then the formed furnace was fired with an oxidizing flame at 1200° C. to manufacture a ceramic furnace.

[0045] Ordinary ceramics tend to crack and shatter easily in rapid heating or quenching environments. However, if image 3 The ceramic furnace manufactured by the present invention shown has high refractoriness and heat resistance, so that it will not break even in the environment of rapid heating or quenching that occurs during firing and cooling. In addition, it was also found that the ceramic casting mold manufactured according to the present invention has excellent thermal insulation properties because no burns are caused by touching the outside of the furnace with hands even when the temperature inside the furnace exceeds 900°C.

[0046] When a ceramic furnace is manufactured from the ceramic mold having a carbon layer of the present inven...

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Abstract

Disclosed herein is a composition comprising 50 to 73% by weight of loess, 9 to 20% by weight of clay, 3 to 10% by weight of wood flour, 3 to 7% by weight of lignum carbonized carbon body powder, 11 to 15% by weight of water and 1 to 5% by weight of ceramic glaze to manufacture a ceramic moulding including a carbon layer therein. Preferably, the composition according to the present invention further comprises elvan powder and Schmotte. Meanwhile, the present invention also provides a method of manufacturing a ceramic moulding with a carbon layer comprising forming a moulding out of the composition and firing the formed moulding with oxidizing flames.

Description

technical field [0001] The present invention relates to a composition for a ceramic casting mold of a dual structure comprising a carbon layer therein, and a method of manufacturing a ceramic casting mold using the composition, wherein the composition contains loess, clay, wood powder, wood carbide powder and ceramic glaze. Background technique [0002] Traditional typical clay bricks are manufactured by mixing clay with quartz sand, drying the mixture and then firing at a temperature of 1100°C to 1200°C. A disadvantage of such clay bricks is that the finished clay brick is also heavy due to the relatively heavy mixture of clay and quartz sand. [0003] Therefore, in order to reduce the weight of clay bricks, bricks in which wood flour such as sawdust or rice husks are further included in a mixture of clay and quartz sand have been proposed. However, such bricks have a disadvantage in that, due to combustion flames during firing, wood powder remains partially as a carbon b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B14/10C04B16/02C04B14/32C04B14/14
CPCC04B2235/3206C04B2235/3201C04B35/6263C04B33/04C04B2235/36C04B2235/3232C04B2235/3208C04B2235/422C04B2235/9646C04B33/13C04B2235/72C04B35/62209C04B33/34C04B2235/3272C04B33/32C04B14/10C04B14/14C04B14/32C04B16/02
Inventor 金九汉
Owner 金九汉
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