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Preparation method for nano-coating not sticking to die

A nano-coating and viscoplastic technology, applied in the coating, metal material coating process, etc., can solve the problems of low hardness of the sprayed surface, high labor intensity, rework and redoing, etc., to solve the problem of mold sticking and reduce labor intensity , The effect of improving the yield

Active Publication Date: 2018-05-08
东莞智通模具塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the mold and injection molding industry, the traditional manufacturing process is often labor-intensive, and the yield rate is revealed, which greatly affects the cost control of products in this field
In particular, the injection molding of TPU material is easy to stick to the mold due to the inherent characteristics of the material, causing mold deformation. In the traditional technical industry, Teflon spraying is used to improve the sticking problem of TPU, but Teflon has no effect on plastic molds. The application is not large, because the sprayed coating is too thick and uneven, which affects the dimensional accuracy of the product. At the same time, the processing process will cause the mold to be deformed and must be reworked, and the sprayed surface has low hardness and short life. High surface hardness and wear resistance are widely used in plastic molds, but the existing rice coating process does not solve the type of TPU sticking mold

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] A preparation method of a non-stick plastic mold nano-coating, comprising the steps of: sandblasting the surface of a soft rubber mold to increase the bonding area between the micrometal and the surface of the soft rubber mold; making the sandblasted soft rubber mold ultrasonically Cleaning to remove tiny substances on the surface; put the cleaned soft rubber mold into a vacuum furnace for coating treatment, and wait until the micro metal powder particles are completely bonded to the surface of the soft rubber mold to form a protective layer on the surface of the soft rubber mold; The soft rubber mold after the layer is polished to remove the tiny sticky particles on the surface to reduce the friction of mold release, and obtain a non-stick mold nano-coating.

[0026] The particle range is 10-50 mesh copper ore, 5-10 mesh refined quartz sand, 50-60 mesh corundum, 60-100 mesh iron sand, 100-120 mesh sea sand, according to the mass fraction ratio of 0.1:0.8:0.05: 0.03:0.2...

Embodiment 1

[0039] The sandblasting treatment is obtained by mixing 10-mesh copper ore sand, 5-mesh fine quartz sand, 50-mesh corundum, 60-mesh iron sand, and 100-mesh sea sand according to the mass fraction ratio of 0.1:0.8:0.05:0.03:0.2 Sand source: Use the above sand sources to sandblast the surface of the soft rubber mold. The effective linear distance between the sandblasting device and the surface of the soft rubber mold is 5cm-30cm. The far end is sandblasting from near to far, and the whole sandblasting process lasts for 5-10 minutes. Clean the soft rubber mold after sandblasting with strong ultrasonic waves, and cycle the cleaning for 2-3 cycles to completely remove the tiny substances on the surface; 20-50KHz for 5-10min, 50-100KHz for 20-30min, and 100-130KHz Continuous cleaning for 1-5 minutes is defined as one cycle of cleaning.

Embodiment 2

[0041]The particle range is 20 mesh copper ore, 8 mesh refined quartz sand, 55 mesh corundum, 70 mesh iron sand, and 110 mesh sea sand, and mix them according to the mass fraction ratio of 0.1:0.8:0.05:0.03:0.2 to obtain sandblasting treatment. Sand source: Use the above sand sources to sandblast the surface of the soft rubber mold. The effective linear distance between the sandblasting device and the surface of the soft rubber mold is 5cm-30cm. The far end is sandblasting from near to far, and the whole sandblasting process lasts for 5-10 minutes. Clean the soft rubber mold after sandblasting with strong ultrasonic waves, and cycle the cleaning for 2-3 cycles to completely remove the tiny substances on the surface; 20-50KHz for 5-10min, 50-100KHz for 20-30min, and 100-130KHz Continuous cleaning for 1-5 minutes is defined as one cycle of cleaning.

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Abstract

The invention belongs to the technical field of nanometer materials, mainly relates to a preparation method for nano-coating not sticking to die. The preparation method for the nano-coating not sticking to die comprises the following steps that the surface of a soft rubber die is subjected to sand blasting treatment, and the bonding area of micro metal and the surface of the soft rubber die is added; the soft rubber die after sand blasting is strongly cleaned by ultrasonic waves, and tiny substances on the surface is cleaned up; the soft rubber die after cleaning is put into a vacuum oven to be subjected to coating treatment, and micro metal particles are completely bonded to the surface of the soft rubber die to enable the surface layer of the die to form a protective layer; the soft rubber die after coating is polished by 15# diamond paste to remove tiny particles on the surface to reduce depanning friction, and the nano-coating not sticking to die is obtained. The nano-coating is prepared on the surface layer of the die, the preparation method for the nano-coating not sticking to die solves the problem that the soft die sticks to the die, the labor intensity is reduced, the preparation process is simplified, the use of a release agent is reduced, and the finished product ratio of products is greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of a non-stick mold nanocoating. Background technique [0002] In the mold and injection molding industry, the traditional manufacturing process is often labor-intensive, and the yield rate is revealed, which greatly affects the cost control of products in this field. In particular, the injection molding of TPU material is easy to stick to the mold due to the inherent characteristics of the material, causing mold deformation. In the traditional technical industry, Teflon spraying is used to improve the sticking problem of TPU, but Teflon has no effect on plastic molds. The application is not large, because the sprayed coating is too thick and uneven, which affects the dimensional accuracy of the product. At the same time, the processing process will cause the mold to be deformed and must be reworked, and the sprayed surface has low har...

Claims

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Application Information

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IPC IPC(8): C23C24/00B24C1/06
CPCB24C1/06C23C24/00
Inventor 李世雄龙永书刘新华萧铿城陈鑫
Owner 东莞智通模具塑胶制品有限公司
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