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Environmentally-friendly casting mold-releasing agent and preparation method thereof

A release agent, an environmentally friendly technology, applied to casting molding equipment, casting molds, cores, etc., can solve the problems of large environmental pollution, poor oxidation stability, easy wax formation at low temperature, etc., to achieve pollution reduction, economical use, excellent quality The effect of the release effect

Active Publication Date: 2011-10-05
SUZHOU XINGYE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an environmentally friendly die-casting release agent, which solves the problems in the prior art that mineral oil is used as a die-casting release agent to pollute the environment, animal and vegetable oils are used as a die-casting release agent at low temperature, easy to wax, and have poor oxidation stability.

Method used

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  • Environmentally-friendly casting mold-releasing agent and preparation method thereof
  • Environmentally-friendly casting mold-releasing agent and preparation method thereof
  • Environmentally-friendly casting mold-releasing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The preparation of embodiment 1 environment-friendly die-casting release agent

[0046] The raw material formula that present embodiment adopts is:

[0047]

[0048]

[0049] Concrete preparation steps:

[0050] (1) Add 350kg of epoxy methyl stearate into the emulsification tank, slowly heat to 70°C, then add 120kg of polyoxyethylene sorbitan monooleate, stir and disperse at 200 rpm for 1 hour.

[0051] (2) Add 79kg of water to the above system first, keep the condition of 70°C unchanged, stir and disperse at the speed of 1000-1500 rpm for 2 hours. Add deionized water slowly, in batches, and in small amounts under stirring. It is required that the added water must be fully miscible with the system before adding water. When the viscosity of the system suddenly becomes significantly smaller, you can add all the remaining deionized water at once, continue stirring for 30 minutes to make A, and cool to 30°C.

[0052](3) While stirring and dispersing, use a small am...

Embodiment 2

[0053] Embodiment 2 Preparation of environment-friendly die-casting release agent

[0054] The raw material formula that present embodiment adopts is:

[0055]

[0056] Concrete preparation steps:

[0057] (1) Add 300kg of epoxy ethyl stearate into the emulsification tank, slowly heat to 70°C, then add 100kg of polyoxyethylene sorbitan monooleate, stir and disperse at 200 rpm for 1 hour.

[0058] (2) Add 90kg of water to the above system first, keep the condition of 70°C unchanged, stir and disperse at the speed of 1000-1500 rpm for 2 hours. Add deionized water slowly, in batches, and in small amounts under stirring. It is required that the added water must be fully miscible with the system before adding water. When the viscosity of the system suddenly becomes significantly smaller, you can add all the remaining deionized water at once, continue stirring for 30 minutes to make A, and cool to 30°C.

[0059] (3) While stirring and dispersing, use a small amount of water to...

Embodiment 3

[0060] Embodiment 3 Preparation of environment-friendly die-casting release agent

[0061] The raw material formula that present embodiment adopts is:

[0062]

[0063] Concrete preparation steps:

[0064] (1) Add 400kg of ethyl formyl stearate into the emulsification tank, slowly heat to 70°C, then add 130kg of polyoxyethylene sorbitan monooleate, stir and disperse at 200 rpm for 1 hour.

[0065] (2) Add 68kg of water to the above system first, keep the condition of 70°C unchanged, stir and disperse at the speed of 1000-1500 rpm for 2 hours. Add deionized water slowly, in batches, and in small amounts under stirring. It is required that the added water must be fully miscible with the system before adding water. When the viscosity of the system suddenly becomes significantly smaller, you can add all the remaining deionized water at once, continue stirring for 30 minutes to make A, and cool to 30°C.

[0066] (3) While stirring and dispersing, use a small amount of water t...

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Abstract

The invention discloses an environmentally-friendly casting mold-releasing agent which comprises the following components by weight percent: 30-45% of modified plant grease, 8-40% of emulsifying agent, 0.3-2% of preservative, 0.5-2% of antioxidant, 2-5% of ethanol, 1-3% of triethanolamine, and the balance of deionized water. The casting mold-releasing agent has an excellent mold-releasing effect and is used for greatly reducing the environmental pollution and saving the usage of petroleum non-renewable resources.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal processing, and relates to an environment-friendly die-casting release agent and a preparation method thereof. Background technique [0002] Most of the existing die-casting release agents are emulsified with mineral oil such as mechanical oil, hydraulic oil, diesel oil, silicone oil, paraffin wax and water, and then diluted and sprayed on the surface of the mold during the die-casting operation, and the mold is cooled by the evaporation of water, reducing the The deformation of the small mold forms a thin film on the surface of the mold at the same time to reduce the demoulding resistance between the mold and the casting and facilitate demoulding. The mineral oil present on the mold in the form of a film adheres to the casting and enters the next process (entering the environment), and the biodegradability of the mineral oil is very poor, and its degradation rate is only 10-30%, thus cau...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 王进兴陈亚东
Owner SUZHOU XINGYE MATERIALS TECH
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