- Preparation of Silicate Gel: The process begins by preparing a molding material called silicate gel. Silicate gel is a mixture of sodium silicate (water glass) and a hardener. The hardener is often made of CO2-absorbing material, such as amine compounds or sodium bicarbonate.
- Molding: The silicate gel is used to create molds for casting. The molding material is mixed with sand and other refractory materials to enhance its properties. The sand mixture is then compacted around a pattern to create the mold cavity.
- Hardening with CO2: Once the mold is formed, carbon dioxide (CO2) gas is introduced into the mold cavity. The CO2 reacts with the hardener in the silicate gel, causing it to set and harden. This process happens quickly, allowing for a faster production cycle compared to traditional sand casting, where curing often takes much longer.
CO2 + Silicate Gel Casting
The CO2 + Silicate Gel Casting process offers several advantages. It allows for the creation of complex and detailed components with high dimensional accuracy. The rapid solidification of the mold reduces the likelihood of defects and improves the overall surface finish of the castings. This process also eliminates the need for binders or additives commonly used in other casting methods, simplifying the casting process and reducing costs.
At our facility, we have expertise in CO2 + Silicate Gel Casting and utilize advanced equipment to ensure precise and high-quality castings. We work closely with our clients to understand their specific requirements and deliver custom solutions. Whether you need prototypes, small-scale production, or large-volume manufacturing, our CO2 + Silicate Gel Casting process provides efficient and reliable results. Contact us today to discuss your casting needs and explore the possibilities of this innovative casting technique.
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