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Complex parts of forging remold, no cutting and high surface finish,high precision,which are difficult to machine,created a broad application prospect for investment casting process.However,products of military and aerospace industry have high demands on the surface quality,dimensions of investment casting parts.Traditional use of liquid sodium silicate can't meet the requirements.And silica sol is alkaline stable colloidal dispersion system,discontinuous amorphous silica particles as dispersed phase,taking water as dispersion medium,made from dilute sodium silicate solution with special process.Among which,SiO2 could mix with organic polymer and work as adhesive by alkalization and acidification,silicon melt modification.
Tongda casts investment castings as parts of packing machine in China. Nowadays, lots of things require for packing. Some require for basic packing. Some require for beautiful packing. To meet such packing requirements, the equipment factory making various of packing machinery. We've worked with some of such packing machine producer for a long time.
Tongda is a casting factory mainly custom investment castings for customers all over the world.We are a top investment casting foundry located in Ningbo,China.Our management idea is to help our customers to buy cheap investment castings from China on the basis of good quality.Today we would like to talk about how to custom investment castings from our foundry.
We all know one of the most important standard of investment casting quality is the hardness.The hardness value of investment castings will be a factor that affects machining of investment castings.
Ceramic cores are used to produce Intricate Internal Shapes in production of Investment Castings.With the help of Ceramic Cores,critical castings applicated in Power Generation,Automobile,Transmission and other industries can be done in Investment Casting.
Tongda supplies cast iron castings made in lost foam casting process in China. Cast iron is a kind of material used to make lots of machinery components. It's with low production costs, but still good at wear resistance. So, for many industries that require lower strength, but require for good wear resistance, cast iron is widely used.
