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Anti-adhesion surface for rubber die as well as preparation method and application for anti-adhesion surface

A rubber mold and anti-adhesion technology, applied in the direction of surface reaction electrolytic coating, anodic oxidation, electrolytic coating, etc., can solve the problems of high energy consumption and material consumption, expensive equipment, complicated process, etc., to improve performance and service life, and effectively Adsorption and storage, simple and adjustable effect

Active Publication Date: 2021-11-05
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the process involved in the preparation of CrN and DLC coatings is extremely complicated, the required equipment is expensive, and the consumption of energy and materials is high.

Method used

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  • Anti-adhesion surface for rubber die as well as preparation method and application for anti-adhesion surface
  • Anti-adhesion surface for rubber die as well as preparation method and application for anti-adhesion surface
  • Anti-adhesion surface for rubber die as well as preparation method and application for anti-adhesion surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Use 600-2000 mesh sandpaper to grind and polish the surface of 6082 aluminum alloy (Ra=0.05-0.1μm), then put the substrate into absolute ethanol and deionized water for ultrasonic cleaning, and finally put the substrate into the oven Dry in vacuum for later use.

[0033] 2. Put the substrate treated in step 1 as an anode into a 40g / L phosphoric acid electrolyte, the cathode is an aluminum alloy with the same area as the anode, the distance between the two electrodes is 20mm, and the temperature of the electrolyte is 10°C. Set the anodizing current density to 20A / dm 2 , time 10min. Put the anodized metal surface into deionized water for ultrasonic cleaning, and then dry it naturally for use.

[0034] 3. Soak the anodized metal surface treated in step 2 in molten palmitic acid (palmitic acid) for 20 minutes, and then put the soaked surface into absolute ethanol for ultrasonic cleaning for 2 minutes.

[0035] 4. Add Krytox 100 dropwise to the metal surface treated in...

Embodiment 2

[0037]1. Use 600-2000 mesh sandpaper to grind and polish the surface of the metal mold substrate 6082 aluminum alloy to make the surface roughness Ra=0.05-0.1μm, and then put the substrate into absolute ethanol and deionized water for ultrasonication After cleaning, the substrate is put into an oven for vacuum drying for later use.

[0038] 2. Put the substrate treated in step 1 as the anode into a 50g / L phosphoric acid electrolyte, the cathode is an aluminum alloy with the same area as the anode, the distance between the two electrodes is 25mm, and the temperature of the electrolyte is 15°C. Set the anodizing current density to 25A / dm 2 , time 15min. Put the anodized metal surface into deionized water for ultrasonic cleaning, and let it dry naturally for later use.

[0039] 3. Soak the anodized metal surface treated in step 2 in molten palmitic acid (hexadecanoic acid) for 20 minutes, and then put the soaked surface into absolute ethanol for ultrasonic cleaning for 2 minute...

Embodiment 3

[0043] 1. Use 600-mesh to 2000-mesh sandpaper to polish and polish the surface of the metal mold substrate, then put the substrate in anhydrous ethanol and deionized water for ultrasonic cleaning, and finally put the substrate in an oven for vacuum drying for later use .

[0044] 2. Put the substrate treated in step 1 as an anode into a 50g / L phosphoric acid electrolyte, the cathode is an aluminum alloy with the same area as the anode, the distance between the two electrodes is 30mm, and the temperature of the electrolyte is 15°C. Set the anodizing current density to 25A / dm 2 , time 20min. Put the anodized metal surface into deionized water for ultrasonic cleaning, and let it dry naturally for later use.

[0045] 3. Soak the anodized metal surface treated in step 2 in molten stearic acid (octadecanoic acid) for 15 minutes, and then put the soaked surface into absolute ethanol for ultrasonic cleaning for 2 minutes.

[0046] 4. Add all FC-70 dropwise to the metal surface trea...

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Abstract

The invention belongs to the technical field of metal surface treatment and discloses an anti-adhesion surface for a rubber die as well as a preparation method and application for the anti-adhesion surface. For the anti-adhesion surface, a micro-nano pore structure is formed on the surface of a metal matrix and is in an irregular bent laminated shape, the pore diameter of the micro-pore structure is 50-150 nm, and the roughness Ra of the anti-adhesion surface is equal to 1-1.4 microns. For the anti-adhesion surface, the surface of a metal matrix is pretreated through an anodic oxidation method, and then a prepared anodic oxidation metal surface is placed in molten octadecanoic acid or / and hexadecanoic acid for soaking and then is cleaned and aired; and lubricating oil with low surface tension is dropwise added to the soaked anodic oxidation metal surface for vacuum oil carrying treatment, and the anti-adhesion surface is prepared. The surface is of a micro-nano porous structure, has excellent self-cleaning property, adhesion resistance, corrosion resistance, high-temperature stability and reusability and has a good application prospect in the field of rubber dies.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and more specifically relates to an anti-adhesion surface for rubber molds, a preparation method and application thereof. Background technique [0002] Rubber molds are extremely important mechanical equipment in the production process of national economy and industry. However, molds are often adhered to by rubber, compounding agents, and release agents during service. Repeated use of contaminated molds will affect the appearance and quality of tire products, so molds must be cleaned or replaced regularly. Frequent disassembly and cleaning of molds seriously affects production efficiency, increases costs, and also causes waste of resources and environmental pollution. In view of this, the pollution of rubber molds has attracted the attention of the industry. At present, cleaning, mold release agent, polishing, nitriding, Teflon coating, CrN coating and DLC coating are mainly us...

Claims

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Application Information

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IPC IPC(8): C25D11/02C25D11/10C25D11/16C25D11/24B29C33/38
CPCC25D11/02C25D11/10C25D11/16C25D11/246B29C33/3842
Inventor 刘灿森庄明塔揭晓华
Owner GUANGDONG UNIV OF TECH
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