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Shell, preparation method thereof and electronic equipment

A shell and quality technology, applied in the production of electrical equipment casings/cabinets/drawers, electrical components, ceramic materials, etc., can solve the problems affecting the production yield and performance of ceramic products, and the green body is prone to cracking. Use performance and product competitiveness, improve surface quality, not easy to agglomerate or settling effect

Active Publication Date: 2022-05-27
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ceramic materials are often made into green bodies first, and then dried and sintered to form ceramic products. During the preparation process, green bodies are prone to cracking, and their strength needs to be improved, which affects the preparation yield and performance of ceramic products.

Method used

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  • Shell, preparation method thereof and electronic equipment
  • Shell, preparation method thereof and electronic equipment
  • Shell, preparation method thereof and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] see figure 1 , a schematic flowchart of a method for preparing a housing provided in an embodiment of the application, including:

[0027] S101: Mix the ceramic material and the mixed liquid and then perform sand grinding to obtain a premixed slurry, wherein the mixed liquid includes a moisturizing agent and a coupling agent, the mass of the moisturizing agent accounts for 0.2%-0.8% of the mass of the ceramic material, and the mass of the coupling agent It accounts for 0.2%-1% of the mass of the ceramic material.

[0028] S102: After the premixed slurry is defoamed, a catalyst and an initiator are added to obtain a mixed slurry.

[0029] S103: The mixed slurry is gel-cast and dried to obtain a ceramic green body.

[0030] S104: After debinding and sintering of the ceramic green body, a ceramic substrate is obtained, and a shell is prepared.

[0031] In the related art, it is often necessary to prepare a ceramic green body first and then heat treatment to obtain a cer...

Embodiment 1

[0077] The organic monomer methacrylamide (the addition amount is 3% of the mass of the ceramic material), the crosslinking agent methylenebisacrylamide (the addition amount is 0.2% of the mass of the ceramic material), the dispersant ammonium polyacrylate (the addition amount is 0.4% of the mass of the ceramic material), defoamer n-octanol (added in an amount of 0.02% of the mass of the ceramic material), surfactant triethanolamine (added in an amount of 0.15% of the mass of the ceramic material), humectant glycerol (added The amount is 0.15% of the mass of the ceramic material), the humectant polyethylene glycol (the amount added is 0.25% of the mass of the ceramic material), and the coupling agent monoalkoxy titanate (the amount added is 0.55% of the mass of the ceramic material) added deionized water, and then adding a pH adjuster ammonia water to adjust the pH to obtain a mixed solution, and the pH value of the mixed solution is 11.

[0078] By mass content, the ceramic m...

Embodiment 2

[0083] The organic monomer methacrylamide (the addition amount is 2% of the mass of the ceramic material), the organic monomer dimethylacrylamide (the addition amount is 1.5% of the mass of the ceramic material), the crosslinking agent methylenebisacrylamide ( The addition amount is 0.1% of the mass of the ceramic material), the crosslinking agent phosphonobutane tricarboxylic acid (the addition amount is 0.05% of the mass of the ceramic material), the dispersant ammonium polyacrylate (the addition amount is 0.2% of the mass of the ceramic material), Dispersant polyvinyl alcohol (addition amount is 0.1% of the mass of ceramic material), defoamer glycerol (addition amount is 0.02% of the mass of ceramic material), surfactant fatty alcohol polyoxyethylene ether (addition amount is ceramic material 0.15% by mass), humectant water-based acrylate (addition amount is 0.2% by mass of ceramic material), humectant sodium carboxymethyl cellulose (addition amount is 0.05% by mass of ceram...

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Abstract

The invention provides a shell preparation method which comprises the steps that a ceramic material and a mixed solution are mixed and then sand-milled to obtain premixed slurry, the mixed solution comprises a humectant and a coupling agent, the mass of the humectant accounts for 0.2%-0.8% of the mass of the ceramic material, and the mass of the coupling agent accounts for 0.2%-1% of the mass of the ceramic material; defoaming the premixed slurry, and adding a catalyst and an initiator to obtain mixed slurry; carrying out gel casting on the mixed slurry, and drying to obtain a ceramic green body; the ceramic green body is subjected to glue discharging and sintering to obtain a ceramic substrate, and the shell is prepared. According to the preparation method, the surface quality of the ceramic green body is improved, it is guaranteed that the ceramic material is not prone to agglomeration or sedimentation in the ceramic green body preparation process, the strength of the ceramic green body and the uniformity of volume density distribution are improved, and therefore the surface performance and mechanical strength of a ceramic substrate and a shell are improved. The invention further provides the shell and the electronic equipment.

Description

technical field [0001] The present application belongs to the technical field of electronic products, and particularly relates to a casing, a preparation method thereof, and an electronic device. Background technique [0002] Ceramic materials have the advantages of high hardness, good toughness, wear resistance, etc., and are often used in electronic equipment in recent years. Ceramic materials are often made into green bodies first, and then dried and sintered to form ceramic products. During the preparation process, green bodies are prone to cracking, and their strength needs to be improved, which affects the production yield and performance of ceramic products. SUMMARY OF THE INVENTION [0003] In view of this, the present application provides a casing, a preparation method thereof, and an electronic device. [0004] In a first aspect, the present application provides a method for preparing a casing, comprising: [0005] The ceramic material and the mixed solution ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622C04B35/488C04B35/632C04B35/634C04B35/636H05K5/00
CPCC04B35/622C04B35/4885C04B35/632C04B35/63488C04B35/6325C04B35/63424C04B35/6365H05K5/00C04B2235/6023C04B2235/3225C04B2235/3244C04B2235/3232C04B2235/3418C04B2235/3287C04B2235/3284C04B2235/3275C04B2235/3272C04B2235/5454C04B2235/5445C04B2235/77C04B2235/96Y02P40/60
Inventor 张文宇
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD