Graphite material and preparation and application thereof

A technology of graphite material and production method, which is applied in the field of graphite materials, can solve the problems of small thermal diffusivity and thermal conductivity, large thermal expansion coefficient, and can only be heated by an open flame, and achieve high thermal diffusivity and thermal conductivity, and thermal expansion coefficient Small, uniform heating effect

Inactive Publication Date: 2015-05-13
PINGDINGSHAN XINRUIDA NEW MATERIAL TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

Electric rice cooker, rice cooker, soup pot, baking pan, etc. are all kitchen utensils commonly used in people's daily life. In the prior art, the general production is made of all cast iron, but the kitchen utensils made of this material have the advantages of heavy weight, durability and durability. The thermal range is small, the thermal expansion coefficient is large, the thermal diffusivity and thermal conductivity are small; there are also kitchen utensils made of ceramics. It is heated by an open flame and is easy to break; in addition, there are so-called health pots made of high borosilicate, although it has a low thermal expansion coefficient, it is not sensitive to heat; the specific parameters of the above materials are as follows:

Method used

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  • Graphite material and preparation and application thereof
  • Graphite material and preparation and application thereof
  • Graphite material and preparation and application thereof

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Embodiment Construction

[0031] The invention provides a kind of preparation method of graphite material, it comprises the following steps:

[0032] A, mixing, the pitch coke of 70 parts by weight is mixed with the high temperature modified coal tar pitch of 30 parts by weight, the moisture (W) of described pitch coke:≤1.0%; Ash content (A):≤0.3%; Volatile matter (V ):≤1.0%; true density (D)≥2.00g / cm 3 ; powder resistance (ρ) ≤ 650μΩm; moisture (W) of the high-temperature modified coal tar pitch: ≤ 1.0%; ash content (A) ≤ 0.3%; volatile matter (V): 45%-60%; softening point (SP ) is 100-110°C; and the quinoline incompatible (QI) in the high-temperature modified coal tar pitch is 7-12%, and the toluene incompatible (BI) is 25-35%

[0033] B, primary grinding, the mixture of above-mentioned pitch coke and high-temperature modified coal tar pitch is pulverized by a pulverizer, and the particle size of the powder is controlled to be 12-18 microns;

[0034] C. Mixing, stirring and heating the pulverized m...

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Abstract

The invention provides a graphite material prepared by a special process; the graphite material has the characteristics of low density, light weight, low ash content, high quality and good compression resistance and bending resistance; kitchen utensils made of the graphite material have the advantages of light weight, wide heat resistance range, small coefficient of thermal expansion, high thermal diffusivity and high heat conductivity, fast heat transfer and even heating; and the graphite material has high market promotion value.

Description

technical field [0001] The invention relates to a graphite material, in particular to a graphite material with light weight, good thermal diffusivity and thermal conductivity, and the application of the graphite material. Background technique [0002] With the advancement of technology, there are more and more choices of materials for home kitchen utensils. Electric rice cooker, rice cooker, soup pot, baking pan, etc. are all kitchen utensils commonly used in people's daily life. In the prior art, the general production is made of all cast iron, but the kitchen utensils made of this material have the advantages of heavy weight, durability and durability. The thermal range is small, the thermal expansion coefficient is large, the thermal diffusivity and thermal conductivity are small; there are also kitchen utensils made of ceramics. Although ceramic kitchen utensils have high thermal conductivity and small thermal expansion coefficient, their heat resistance range is small a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04A47J36/00A47J27/00A47J37/06
Inventor 赵冬冬
Owner PINGDINGSHAN XINRUIDA NEW MATERIAL TECH CO LTD
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