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A high-performance water-based metal die-casting release agent

A release agent, metal technology, applied in the direction of metal processing equipment, casting molds, casting mold components, etc., can solve problems such as difficult to ensure the residual amount of lubricating components, burrs, pores, etc., to facilitate automated production, solve porous problems, high temperature The effect of strong heat resistance

Active Publication Date: 2020-05-22
上海力太化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the components of the existing release agent are easy to evaporate or become decomposed gas due to heat, and it is difficult to ensure the residual amount of lubricating components in the high-temperature mold, which often results in the formation of porous, burr and other structures on the surface of the die-casting metal.

Method used

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  • A high-performance water-based metal die-casting release agent
  • A high-performance water-based metal die-casting release agent

Examples

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preparation example Construction

[0037] The preparation method of metal die-casting release agent of the present invention comprises the steps:

[0038] Oil phase system mixing: add the functional organic composition and the nonionic surfactant into the multifunctional reaction kettle, and stir to form an oil phase system at the same time;

[0039]W / O water-in-oil: Stir at 1000r / min, and drop water into the oil phase system to form a water-in-oil system. The amount of water added accounts for 1 / 10 of the mass of the oil phase system. The water-in-water system undergoes phase transformation to form an O / W oil-in-water system. After the phase transformation, stop adding water to the oil phase system and continue stirring for 5-10 minutes;

[0040] O / W oil-in-water: continue to inject water into the oil-in-water system for 3-5 minutes, the amount of water injected is 1 / 3-1 / 2 of the oil phase system, and the speed is increased to 1500r / min to make oil-in-water O / W W pre-emulsion, increase the speed to 600r / min, ...

Embodiment 1

[0044] Example 1 is a specific example of preparing a mold release agent suitable for aluminum alloy die-casting. As shown in the following table 1, 1.5 phr high carbonized phenolic resin contained in this example, 20.6 phr high temperature resistant silicone oil, 10.0 phr refined rapeseed oil, 10.0 phr high viscosity mineral oil, 3.0 phr Span-80, 2.0 phr 1310 , 1.0 phr AEO-3, 1.0 phr triethanolamine, 0.03 phr isothiazolinone, 0.01 phr benzisothiazolone and 50.86 phr solvent.

[0045] Concrete preparation process is as follows:

[0046] Add high-carbonized phenolic resin, high-temperature-resistant silicone oil, high-viscosity mineral oil, refined rapeseed oil, Span-80, AEO-3 and 1310 into the multifunctional reaction kettle, and heat and stir to form an oil phase system at the same time. Then stir at a speed of 1000r / min, and add water dropwise into the oil phase system, and the dropwise addition is completed within 20 minutes to form an oil-in-water system. Continue to inj...

Embodiment 2

[0049] Example 2 is a specific example of preparing a release agent suitable for aluminum alloy die-casting. As shown in the following table 1, 1.0 phr high carbonized phenolic resin contained in this example, 24.0 phr high temperature resistant silicone oil, 10.0 phr refined rapeseed oil, 7.5 phr high viscosity mineral oil, 2.6 phr Span-80, 2.0 phr 1310 , 1.0 phr AEO-3, 1.0 phr triethanolamine, 0.03 phr isothiazolinone, 0.01 phr benzisothiazolone and 50.86 phr solvent.

[0050] Concrete preparation process is as follows:

[0051] Add high-carbonized phenolic resin, high-temperature-resistant silicone oil, high-viscosity mineral oil, refined rapeseed oil, Span-80, AEO-3 and 1310 into the multifunctional reaction kettle, and heat and stir to form an oil phase system at the same time. Then stir at a speed of 1000r / min, and add water dropwise into the oil phase system, and the dropwise addition is completed within 20 minutes to form an oil-in-water system. Continue to inject wa...

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Abstract

The invention provides a high-property water-based metal die-casting releasing agent and further discloses a preparation method and application of the metal die-casting releasing agent. The high-property water-based metal die-casting releasing agent comprises the components of a functional organic composition, an assistant and a solvent. The functional organic composition comprises high-temperature-resisting resin, high-temperature-resisting silicone oil, mineral oil, animal and vegetable grease and the like, the assistant comprises a non-ionic surface active agent, a defoaming agent, a preservative, a sterilizing agent and the like, and the solvent is specifically deionized water. The high-property water-based aluminum alloy die-casting releasing agent is light yellow grey emulsion, the kinematic viscosity is 5-38 mm2 / s, the particle size is 200-500 nm, and the emulsion is stable; and in the aluminum die-casting technological process, the good lubricating and die releasing propertiesare achieved, the good cooling and heat-insulating properties are achieved, the good high-temperature wetting and lubricating properties are achieved, die sticking and destruction under pulling are prevented, carbon deposit and coking are avoided, thus a casting is purely white and bright, smoke and pollution are avoided, the clean environment is kept, and use is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a high-performance water-based metal die-casting release agent. Background technique [0002] As a metal forming method using a die, there are a casting method and a die forging method. Examples of the casting method include a low-pressure casting method, a pressure casting method, and the like. In such a casting method, before filling the mold with molten metal, a release agent is used for the purpose of suppressing the reaction (welding) between the mold and the molten metal and also assisting the release of the shaped product. In the low pressure casting method, the squeeze casting method etc. which is one of the pressurized casting methods, due to the low speed of filling the mold cavity with molten metal such as aluminum alloy, the mold temperature and molten metal temperature are kept higher than typical A high-speed pressurized casting method to ensure the fluidit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C3/00B22D17/22
CPCB22C3/00B22D17/2209
Inventor 罗健军曾祥云
Owner 上海力太化学有限公司
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