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Carbon composite composition and carbon heater manufactured using the same

A composition and composite technology, applied in the direction of furnace heating elements, ohmic resistance heating, heating element materials, etc., can solve the problems of reducing the radiation efficiency of ovens, achieve the effects of improving production efficiency, excellent resistance, and improving delivery cycle

Active Publication Date: 2018-11-23
LG ELECTRONICS INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shield member not only shields the plasma light, but also shields a portion of the radiant light emitted from the carbon heater, thereby greatly reducing the radiation efficiency of the oven.

Method used

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  • Carbon composite composition and carbon heater manufactured using the same
  • Carbon composite composition and carbon heater manufactured using the same
  • Carbon composite composition and carbon heater manufactured using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Among the inorganic powder components indicated in Table 1 above, it is prepared to add novolac resin as a binder and black lead as a lubricant to silicon carbide SiC so that the ratio of the three reaches 74%, 23%, and % and 3% of the ternary (Ternary) carbon composite composition. The number average molecular weight of the novolac resin used in the present invention is preferably 1,000 to 10,000, more preferably 3,000 to 7,000.

[0086] The prepared ternary composition was first uniformly mixed through a raw material mixing step, then extruded, and subsequently, subjected to a stabilization heat treatment process and a carbonization heat treatment process, then processed into a final carbon heater and evaluated for electrical characteristics.

[0087] Figure 6A and Figure 6B The surface and cross-section of the ternary carbon composite after the stabilization heat treatment process are shown. Such as Figure 6A and Figure 6B As shown, the carbon composite comp...

Embodiment 2

[0093] Among the inorganic powder components shown in Table 1 above, silicon carbide SiC is used as the basis and silicon oxide SiO is additionally included as a specific resistance adjuster. 2 A quaternary carbon composite composition containing novolak resin as a binder and black lead as a lubricant was prepared as an inorganic powder.

[0094] The prepared quaternary composition is also uniformly mixed through the raw material mixing step in the same manner as in Example 1, then extruded, then subjected to a stabilization heat treatment process and a carbonization heat treatment process, and then processed into a final carbon heater and evaluated electrical characteristics.

[0095] Figure 7A and Figure 7B The surface and cross-section of the quaternary carbon composite after the stabilization heat treatment process are shown. Such as Figure 7A and Figure 7B As shown, the carbon composite composed of the quaternary composition is the same as the carbon composite co...

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Abstract

The invention provides a carbon composite composition and a carbon heater manufactured using the same. More concretely, the invention relates to the carbon composite composition used in the field of heating devices for electric ovens and the carbon heater manufactured using the same. The carbon composite composition may include a phenolic resin as a binder, a lubricant, and base material that determines a specific resistance of a resistance heating element at a high temperature. The carbon composite composition may prevent a dielectric breakdown, a spark and plasma from occurring in a carbon heater, and may improve radiation efficiency of the carbon heater.

Description

technical field [0001] The present invention relates to a carbon composite composition used as a heater for applying heat in the field of cooking devices such as an oven, for producing a heater heating element, and a carbon heater produced by using the carbon composite composition. Background technique [0002] Recently, an oven (oven) using a heater has been widely used as a household or commercial cooking device. [0003] figure 1 It is a perspective view showing a general structure of an oven, refer to figure 1 , the oven 1 is equipped with: a cavity 2 for placing food to be cooked; a door 3 for selectively opening the cavity 2; a plurality of heaters 6 for applying heat to the cavity 2 . [0004] In particular, one or more heaters are attached to the heater 6, and the heater 6 is protected by a cover 8 from the outside of the cavity. In addition, in order to be applicable to the electromagnetic wave heating method, a magnetron 4 is externally installed on the upper s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565
CPCC04B35/565C04B2235/48C04B2235/425C04B2235/3418H05B3/148C04B2235/3217C04B2235/3826C04B2235/6025H05B3/64C04B35/63476C08L61/06H05B3/145C04B35/634H05B3/14C08K3/04C04B35/6303
Inventor 李荣峻梁甲承金相完
Owner LG ELECTRONICS INC
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