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Mold for small silicon rubber grid rib reinforced structure composite material cabin section

A silicone rubber and mold technology, applied in metal material coating process, ion implantation plating, coating, etc., can solve problems such as low hardness, difficult demoulding, easy corrosion, etc.

Active Publication Date: 2022-03-25
北京航天天美科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The application provides a diamond-like micro-nano coating for silicone rubber molds, the diamond-like micro-nano coating for rubber molds and its preparation method solve the problem of the surface of rubber molds in the prior art. Corrosion, difficult demoulding, low hardness, and low wear resistance technical problems

Method used

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  • Mold for small silicon rubber grid rib reinforced structure composite material cabin section

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation method of the diamond-like micro-nano coating for silicone rubber mold mainly includes the following steps:

[0015] Use acetone, alcohol, and deionized water to ultrasonically clean the silicone rubber mold to remove surface grease and dirt, and dry it with hot air.

[0016] A dielectric barrier discharge reactor was used for plasma modification at room temperature. A mixture of high-purity silane and methane gas was introduced between the electrodes of the reaction chamber at a flow rate of 20mL / min, and the volume ratio of silane to methane was 0.6:1. A 10kHz, 25kV AC power is applied to the reactor to generate plasma containing Si and C at room temperature, and the mold is treated for 2 minutes.

[0017] Then it was transferred to the sputtering chamber, and the Al target and the graphite target were set opposite to each other. First, Ar ions bombarded the target for 4 minutes to clean and activate the target respectively; the vacuum degree of the sp...

Embodiment 2

[0022] The preparation method of the diamond-like micro-nano coating for silicone rubber mold mainly includes the following steps:

[0023] Use acetone, alcohol, and deionized water to ultrasonically clean the silicone rubber mold to remove surface grease and dirt, and dry it with hot air.

[0024] A dielectric barrier discharge reactor was used for plasma modification at room temperature. A mixture of high-purity silane and methane gas was introduced between the electrodes of the reaction chamber at a flow rate of 35 mL / min, and the volume ratio of silane to methane was 0.8:1. A 10kHz, 20kV AC power is applied in the reactor to generate plasma containing Si and C at room temperature, and the mold is treated for 2 minutes.

[0025] Then it was transferred to the sputtering chamber, and the Al target and the graphite target were set opposite to each other. First, Ar ions bombarded the target for 3 minutes to clean and activate the target respectively; the vacuum degree of the s...

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Abstract

The invention provides a diamond-like carbon micro-nano structure for a silicon rubber mold and a mold with the diamond-like carbon micro-nano structure for a small-sized silicon rubber grid rib reinforced structure composite material cabin section. The preparation method comprises the following steps: respectively carrying out ultrasonic cleaning on a silicon rubber mold with acetone, alcohol and deionized water to remove grease and dirt on the surface, blow-drying with hot air, carrying out normal-temperature plasma modification by adopting a dielectric barrier discharge reactor, transferring into a sputtering chamber, and preparing the Al-doped DLC coating by adopting a sputtering method. According to the diamond-like micro-nano structure for the rubber mold and the preparation method of the diamond-like micro-nano structure, the technical problems that in the prior art, the surface of a rubber mold is prone to corrosion, demolding is not prone to occurring, the hardness is not high, and the abrasion resistance is not high are solved. In addition, the invention further provides a mold with the coating for the small-sized grid rib reinforced structure composite material cabin section.

Description

technical field [0001] The application relates to a surface structure of a silicone rubber mold, specifically a DLC coating prepared by sputtering, and a mold for a cabin section of a composite material cabin reinforced with small silicone rubber grid ribs with the coating. Background technique [0002] Fiber-reinforced composite materials have the advantages of high specific strength, high specific modulus, fatigue resistance, corrosion resistance, strong designability, low density, low thermal expansion coefficient, high dimensional stability, etc., and have been widely used in aerospace, aviation, navigation and other fields ; Composite materials and cabin structure, in order to ensure a certain degree of rigidity of the product, reduce product weight, set grid reinforcement structure is a general design method. Compared with increasing the wall thickness to achieve the same rigidity, designing a reinforced structure with ring grid ribs can greatly save material costs and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29C33/42B29C70/34B29C33/72C23C14/02C23C14/06C23C14/34
CPCB29C33/3842B29C33/42B29C70/342B29C33/72C23C14/0605C23C14/3464C23C14/022
Inventor 修建杨一烁杨红娜
Owner 北京航天天美科技有限公司
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