What is Precision Casting (Silica Sol Casting)?
In the page of investment casting, we indroduce the characteristics and application of investment casting technology. However, investment casting is divided into water glass casting and silica sol casting. It’s significant for us to fully understand which technical process is right choice for specific parts.
Silica sol (colloidal silica), also known as silicic acid solution, is a colloidal dispersion of amorphous silica aggregate particles in water. Silica sol has a wide range of dehydration temperature, which will not only destroy its bonding strength, but also make its three-dimensional structure more stable and produce higher bonding strength. It is a good inorganic binder for precision casting
Silica sol is used in precision casting. Because of its good adhesion and filling properties, the shell made of high strength, high gloss and easy demoulding has been widely used in this field.
Why choose precision casting?
Firstly, the parts casted by precision casting process has high accuracy, low surface roughness, small machining allowance, and even can realize non finish machining;
Secondly, the precision casting can also produce castings with more complex design. The minimum wall thickness of the casting can reach 2.5mm and the minimum pore diameter can reach 1mm;
Precision castings are mainly used for parts with high corrosion resistance and precision dimensions, since precision steel casting can have much better surface quality and less geometrical deviation of dimensions. The main precision steel castings we ever made include meat grinder parts, valve castings, pump castings, marine hardware, and furniture decoration etc.
Lead foundry in China
Maple is a leading supplier of precision castings in China, our professional technical department can provide you with perfect casting solutions and reliable technical services, whether raw materials, mechanical properties, casting process or end application, and always provide the most professional advice for you.
Investment casting is one of Maple’s main businesses. Our advantages are not only that we can provide customer with high-quality casting parts, in-time delivery and professional order management help customers save a lot of time.
Anyway, purchasing parts in Maple is the simplest thing. Tell us the requirements, place an order, and after a period of time, we can deliver parts that meet or even exceed your expectations.