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    Investment stainless steel casting food machinery parts

    process:silica sol casting usage: food machinery parts parts material: AISI 304
  • Category:
    SILICA SOL CASTING
  • Browse number:
    233
  • Release time:
    2019-05-22 14:11:31
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process:silica sol casting                      

usage: food machinery parts                          

parts material: AISI 304   

Investment casting

Investment casting is an industrial process based on lost-wax casting, one of the oldest known metal-forming techniques.The term "lost-wax casting" can also refer to modern investment casting processes.

Investment casting has been used in various forms for the last 5,000 years. In its earliest forms, beeswax was used to form patterns necessary for the casting process. Today, more advanced waxes, refractory materials and specialist alloys are typically used for making patterns. Investment casting is valued for its ability to produce components with accuracy, repeatability, versatility and integrity in a variety of metals and high-performance alloys.

Silica sol castings is one of investment casting, are mainly used for products with high corrosion resistance and precision dimensions, since silica sol steel casting can have much better surface quality and less geometrical deviation of dimensions. The main silica sol steel castings we ever made include meat grinder parts, valve castings, pump castings, marine hardware, and furniture decoration etc.

Both silica sol casting and water glass casting belong to investment casting or lost wax casting. So process of silica sol casting is almost the same as water glass casting. But silica sol investment casting process uses silica sol zircon sand as the molding material, which can stand temperature up to 2000 degree. 

The silica sol investment castings have better dimensions and surface quality, but just more expensive than water glass casting. Cost of silica sol casting is almost twice than the cost of water glass casting. Below are the main differences between solica sol casting and water glass casting.


Process

Silica sol castingWater glass casting
Size tolerancesCT5-6CT7-8
MachiningNo or less machiningMore machining
MaterialStainless steelCarbon steel & alloy steel
CosthighLow


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