Zinc stearate is used as a release agent for aluminum alloy water-based die-casting
Zinc stearate can be used as a water-based die-casting release agent for aluminum alloys. As a heat stabilizer and lubricant, zinc stearate is widely used in industries such as plastics, rubber, paints, and inks. In the aluminum alloy water-based die-casting release agent, the addition of zinc stearate can play the following roles:
1. Improve de-molding efficiency: Zinc stearate has good lubrication properties and can significantly reduce the friction between aluminum alloy castings and molds, making it easier for castings to come out of the mold, thus improving de-molding efficiency.
2. Enhance the stability of the release agent: Zinc stearate has good thermal stability and can maintain the chemical stability of the release agent during high-temperature die-casting, preventing it from decomposing or deteriorating, thereby extending the service life of the release agent.
3. Improve the surface quality of castings: The addition of zinc stearate can also improve the smoothness and uniformity of the casting surface, making the casting surface smoother and more beautiful.
However, when using zinc stearate as a stabilizer for aluminum alloy water-based die-casting release agents, you also need to pay attention to the following points:
1. Control the addition amount: The addition amount of zinc stearate needs to be controlled within a certain range. Excessive addition may affect the lubrication performance and demoulding effect of the release agent, and may even have a negative impact on the quality of the casting.
2. Compatibility with other components: Zinc stearate needs to have good compatibility with other release agent components (such as water, surfactants, emulsifiers, etc.) to ensure the overall performance and performance of the release agent. stability.
3. Consider the production environment and conditions: Factors such as temperature and humidity in the production environment may affect the performance and effect of zinc stearate, so adjustments and optimizations need to be made according to the actual situation.
In summary, zinc stearate can be used in water-based die-casting release agents for aluminum alloys, and can improve the release efficiency, enhance the stability of the release agent, and improve the surface quality of castings. However, during use, you need to pay attention to controlling the amount of addition, compatibility with other components, and considering factors such as the production environment and conditions.