metal casting companies

Introduction The lost foam process molding equipment originated in 1958 when H.F. Shroyer was granted a patent for a cavity-less casting method, using a polystyrene foam pattern embedded in traditional green sand. The polystyrene foam pattern left in the sand is decomposed by the poured molten metal. The metal replaces the foam pattern, exactly duplicating all of the features of the original pattern. Like other investment casting methods, this requires that a pattern be produced for every casting poured because it is evaporated ("lost") in the process. Process Steps 1.Mold foam pattern sections. 2.Age pattern to allow dimensional shrinkage. 3.Assemble pattern if it is a multiple piece pattern. 4.Build cluster (multiple patterns per cluster). 5.Coat cluster. 6.Dry coating. 7.Compact cluster in flask. 8.Pour metal. 9.Extract cluster from flask. Black area------sand preparation and molding system 1. manipulator 2. winnowing Magnetic separators 3. sanded-up equipment 4. vibrating conveying screen classifier 5. chain elevator 6. water-cooled sand cooling equipment 7. tri-dimensional vibrating table 8. vacuum system 9. dust collector White area------make the foam mould 1. batch-type pre-foaming machine 2. vertical type mould forming machine 3. bonder machine 4. coating stirring mill 5. hot gas far infra red drying oven

Other supplier products

	Vibrating Sand Conveyor Machine&screening Machine	Vibrating Sand Conveyor Machine&screening Machine,Lost Foam Molding Machine
	vacuum process flask	The history Vacuum seal modeling technology (also called V method modeling) is the 1970s Japan invented and the successful development of a specia...
	Lost Foam Eps Pattern Coating Drying Room&coaing Drying Chamber	Lost Foam Eps Pattern Coating Drying Room&coaing Drying Chamber,Website: Foam Molding Machine
	Lost Foam Molding line	Product Description Introduction The lost foam process molding equipment originated in 1958 when H.F. Shroyer was granted a patent for a cavity-l...
	Movable Vibrating Table&vibrator	Movable Vibrating Table&vibrator,Vibration Table

Same products

	RIELLO Original Gas Burner 40 RHE FS10 Burner	Seller: Hebei QianYue Heat Energy Technology Co., LTD	RIELLO Original Gas Burner 40 RHE FS10 Burner The Riello 40 FS series of one-stage gas burnersis...
	Nitrous Oxide, N2O Specialty Gas	Seller: Chengdu Taiyu Industrial Gases Co., Ltd	, also known as nitrous oxide, is an inorganic substance that is stable at room temperature, has ...
	Sulfuryl Fluoride, SO2F2 Industrial Gas	Seller: Chengdu Taiyu Industrial Gases Co., Ltd	is an inorganic compound. It is a colorless, odorless and toxic gas under normal temperature and ...
	Ammonia, NH3 Industrial Gas	Seller: Chengdu Taiyu Industrial Gases Co., Ltd	is a colorless gas with a strong pungent odor and is corrosive. Ammonia is an important chemical ...
	Ethylene, C2H4 Specialty Gas	Seller: Chengdu Taiyu Industrial Gases Co., Ltd	Ethylene is a colourless,with a sweet odour. Ethylene is one of the chemical products with the la...