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Fluoride-free zinc alloy water-based release agent

A technology of zinc alloy and release agent, which is applied in metal processing equipment, coating, casting and molding equipment, etc., can solve the problems of low dilution multiple, large price fluctuation, uneven quality, etc., to reduce heat and mechanical Shock effect, superior storage stability, and unresponsive effect

Inactive Publication Date: 2019-07-19
广州市蓝化润滑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the aluminum-zinc alloy die-casting release agents used in the die-casting industry generally refer to water-based release agents. There are a few products in the domestic market, with uneven quality and large price fluctuations.
Moreover, in order to maintain the basic release performance of domestic products, they must maintain a relatively high solid content during use, so the dilutable multiples of water are low, generally 50-80 times
[0003] The dilution ratio of foreign release agent brands with water can be maintained at 120 to 200 times in actual use, but the price is higher than that of domestic products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A kind of fluorine-free zinc alloy water-based mold release agent proposed by the present invention comprises the following components by weight fraction:

[0012] 6-7 parts of sodium lauryl sulfate, 15-25 parts of polyethylene wax, 5-10 parts of dimethyl silicone oil, 1-2 parts of hydroxyl silicone oil, 1-2 parts of isomeric alcohol polyoxyethylene ether, emulsifier 4-8 parts, 0.1-0.5 parts of preservative, 0.1-0.2 parts of defoamer, 0.05-0.2 parts of sodium xylene sulfonate and 40-50 parts of water.

[0013] In a specific embodiment, the composite emulsifier is made up of Tween, sodium salt of shuttle acid, polyether type nonionic surfactant and fatty alcohol, and by weight fraction, includes: 40-60 parts of Tween, sodium salt of shuttle acid 25 -35 parts, 7-10 parts of polyether type nonionic surfactant and 4-5 parts of fatty alcohol.

[0014] Further, Tween is selected from Tween 85, Tween 80 or Tween 60.

[0015] Further, the preservative is selected from 2-methy...

Embodiment 2

[0018] A fluorine-free zinc alloy water-based release agent proposed by the present invention comprises the following components by weight fraction: 6 parts of sodium lauryl sulfate, 15 parts of polyethylene wax, 5 parts of dimethyl silicone oil, and hydroxy silicone oil 1 part, 1 part of isomeric alcohol polyoxyethylene ether, 4 parts of emulsifier, 0.1 part of preservative, 0.1 part of defoamer, 0.05 part of sodium xylene sulfonate and 40-50 parts of water.

[0019] In a specific embodiment, the composite emulsifier is made up of Tween, sodium salt of shuttle acid, polyether type nonionic surfactant and fatty alcohol, and by weight fraction, includes: 40-60 parts of Tween, sodium salt of shuttle acid 25 -35 parts, 7-10 parts of polyether type nonionic surfactant and 4-5 parts of fatty alcohol.

[0020] Further, Tween is selected from Tween 85, Tween 80 or Tween 60.

[0021] Further, the preservative is selected from 2-methyl-4-isoproline-3-one or 2-bromo-2-nitropropane-1,3-...

Embodiment 3

[0024] A fluorine-free zinc alloy water-based release agent proposed by the present invention comprises the following components by weight fraction: 7 parts of sodium lauryl sulfate, 25 parts of polyethylene wax, 10 parts of dimethyl silicone oil, hydroxy silicone oil 2 parts, 2 parts of isomeric alcohol polyoxyethylene ether, 8 parts of emulsifier, 0.5 part of preservative, 0.2 part of defoamer, 0.2 part of sodium xylene sulfonate and 40-50 parts of water.

[0025] In a specific embodiment, the composite emulsifier is made up of Tween, sodium salt of shuttle acid, polyether type nonionic surfactant and fatty alcohol, and by weight fraction, includes: 40-60 parts of Tween, sodium salt of shuttle acid 25 -35 parts, 7-10 parts of polyether type nonionic surfactant and 4-5 parts of fatty alcohol.

[0026] Further, Tween is selected from Tween 85, Tween 80 or Tween 60.

[0027] Further, the preservative is selected from 2-methyl-4-isoproline-3-one or 2-bromo-2-nitropropane-1,3-pr...

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PUM

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Abstract

The invention discloses a fluoride-free zinc alloy water-based release agent. The agent comprises the following components of, by weight, lauryl sodium sulfate, polyethylene wax, dimethyl silicone oil, hydroxyl silicone oil, isomeric alcohol-polyoxyethylene ether, a compound emulsifier, a preservative, a defoaming agent, sodium xylene sulfonate and water. The agent has the advantages that the applicability is wide, the original characteristics can still be kept when the temperature is changed hugely, the agent is not easy to oxidize, is not prone to react with most of chemical substances, hasexcellent storage stability and is easy to treat, the agent can still be very stable when the temperature of a mold is high, so that the heat shock effect and the mechanical shock effect of an aluminum alloy liquid on the surface of the mold can be effectively reduced, frictional wear of a casting on the surface of the mold can be reduced, the physical effect and the chemical effect of the aluminum alloy liquid on a mold material can be reduced, the cavity protection effect and the lubrication and mold release effect can be achieved, meanwhile, the pollution on the surface of a product causedby colloid left or residual substances is avoided, the cost is saved, the product quality is improved, and the mold release property is excellent.

Description

technical field [0001] The invention relates to the field of release agents, in particular to a fluorine-free zinc alloy water-based release agent. Background technique [0002] At present, the aluminum-zinc alloy die-casting release agents used in the die-casting industry generally refer to water-based release agents. There are a few products in the domestic market, with uneven quality and large price fluctuations. Moreover, in order to maintain the basic mold release performance of domestic products, they must maintain a relatively high solid content during use, so the dilutable multiple of water is relatively low, generally 50-80 times. [0003] The dilution ratio of foreign release agent brands with water can be maintained at 120 to 200 times in actual use, but the price is higher than that of domestic products. In addition, most of the water-based release agents on the market contain fluorine-containing surface active ingredients, such as perfluorooctylsulfonphthalein ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 曾世伟曾子轩
Owner 广州市蓝化润滑科技有限公司
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