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Hardness-improved oxidation-resistant material as well as preparation method and application thereof

A technology of oxidation resistance and hardness, applied in the field of materials, it can solve the problems of low hardness and insufficiency of oxidation.

Pending Publication Date: 2022-08-05
维达力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although graphite molds have the advantages of good thermal conductivity, good lubricity, and moderate strength, graphite molds often have problems such as low hardness and resistance to oxidation due to their performance constraints. The existence of these problems affects the life and performance of graphite molds. have a greater impact

Method used

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  • Hardness-improved oxidation-resistant material as well as preparation method and application thereof
  • Hardness-improved oxidation-resistant material as well as preparation method and application thereof

Examples

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preparation example Construction

[0048] Still another embodiment of the present invention provides a method for preparing a hardness-improved oxidation-resistant material. The preparation method comprises the following steps: by mass percentage, prepare materials according to 30%-60% of boron nitride, 35%-60% of mica, 0-20% of thermal conductive agent and 0-10% of glass-ceramic; Mica, thermally conductive agent and glass-ceramic blend. The preparation method is simple and feasible, and is suitable for industrial production.

[0049] In a specific example, after the boron nitride, mica, thermal conductive agent and glass-ceramic are mixed, the following step is further included: mixing the mixed material with an anti-settling agent, a water reducing agent, a dispersing agent and a defoaming agent; Among them, in terms of the mass percentage of the sum of the mass of boron nitride, mica, thermal conductive agent and glass-ceramic, the mass percentage of anti-settling agent is 0.5% to 2%, and the mass percentag...

Embodiment 1

[0062] The preparation method of the hardness-improved oxidation-resistant material in this embodiment includes the following steps:

[0063] S101: In terms of mass percentage, prepare and mix materials according to 50% of hexagonal boron nitride, 40% of mica, 5% of silicon carbide and 5% of glass-ceramic to obtain a mixture.

[0064] S102: Add 50% of the ethanol by mass of the mixture to the mixture obtained in S101, and perform ball milling for 5 hours. After ball milling, it was dried, and then passed through a 200-mesh sieve to obtain powder.

[0065] S103: adding polyamide wax, ceramic water reducing agent and deionized water to the powder obtained in S102 and stirring evenly, then adding a modified silicone defoamer and continuing to stir to obtain a slurry. Among them, in terms of the mass percentage of the sum of the mass of hexagonal boron nitride, mica, silicon carbide and glass-ceramic, the mass percentage of anti-settling agent is 0.8%, the mass percentage of cera...

Embodiment 2

[0069] Compared with Example 1, the difference of this example is that, in terms of mass percentage, the materials are prepared according to 30% of hexagonal boron nitride, 60% of mica, 5% of silicon carbide and 5% of glass-ceramic.

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Abstract

The invention relates to a hardness-improved oxidation-resistant material as well as a preparation method and application thereof. Boron nitride, mica, a heat conducting agent and microcrystalline glass are matched for use, and the mass percentages of the boron nitride, the mica, the heat conducting agent and the microcrystalline glass are controlled to be 30%-60%, 35%-60%, 0-20% and 0-10% respectively, so that the material with good oxidation resistance and obvious hardness improvement is obtained. When the hardness-improved oxidation-resistant material is used in a hot bending mold, the hardness and oxidation resistance of the hot bending mold can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to an oxidation-resistant material with improved hardness and a preparation method and application thereof. Background technique [0002] With the advancement of glass processing technology, there are more and more products containing curved glass, which in turn leads to an increasing demand for curved glass. For example, electronic products such as mobile phones, computers, and TVs with 3D glass as the cover are widely favored by consumers, and the demand for 3D glass is also rising. [0003] In the processing of curved glass, the hot bending mold is a key processing component. Through the use of hot bending molds, the glass can be processed into curved glass that meets the radian requirements. In the selection of hot bending dies, traditional hot bending dies are usually made of graphite. Although graphite molds have the advantages of good thermal conductivity, good lubricity...

Claims

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Application Information

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IPC IPC(8): C04B35/583C04B35/18C04B35/66C03B23/03
CPCC04B35/66C04B35/583C04B35/18C03B23/03C04B2235/3463C04B2235/3826C04B2235/36C04B2235/6581C04B2235/386C04B2235/9607C04B2235/96Y02P40/57
Inventor 陈亚兵李倩倩付弦许仁王伟
Owner 维达力科技股份有限公司