2020 Good Quality Lost Foam Casting Company - Alloy Steel Lost Foam Casting Product – RMC Foundry

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2020 Good Quality Lost Foam Casting Company - Alloy Steel Lost Foam Casting Product – RMC Foundry Detail:

Lost Foam Casting refers to the casting method that combines foam patterns with dry sand molding. The molten metal directly fills and replaces the space occupied by the original plastic mold, and directly obtains the required casting after cooling. The foam pattern is directly vaporized during the metal casting process, so the lost foam casting does not require mold removal. At most lost foam casting foundries, the commonly used pattern material is polystyrene.

The Steps of Lost Foam Casting:
1- Use foam molds to produce foam patterns and casting gating systems
2- Bond the patterns and runners to form a mold bundle module
3- Dip paint on the module
4- Dry the paint
5- Put the module into the sand box and fill it with dry sand
6- Vibrate molding in order to fill the cavity with dry sand and then compact the molding sand
7- Pouring molten metal to vaporize the foam and then forming the desired castings
8- After the castings have cooled, clean the castings. The dry sand can be recycled

Advantages of Lost Foam Casting:
1- Lost foam casting is a near-net shape casting method. The dimensional tolerance of the casting can reach CT6~CT9, and the surface roughness is Ra=6.3~50 μm. The shape of lost foam castings can be comparable to resin sand castings.
2- Lost foam casting can produce castings with complex shapes and complex cavities. Compared with the resin sand process, the more sand cores are replaced, the greater the profit margin of lost foam casting. The core competitiveness of lost foam casting is the production of difficult castings with complex inner cavities, such as engine block, engine head and box, etc. These characteristics make the superiority and economic benefits of lost foam casting fully appear, and realize the lightweight and precise casting.
3- Lost foam casting does not require mold removal, which provides greater freedom for casting design and casting process. In terms of process design, the lost foam casting process is first broken into parts and then spliced into a whole, and then the lost foam process is used for integral casting, so that the lost foam casting has the competitive advantage with the traditional sand casting.
4- The use of lost foam casting process can greatly reduce labor intensity, reduce the generation of solid waste, and the used dry sand can be recycled. This feature meets the requirements of energy saving and emission reduction, and has changed the harsh environment of traditional sand casting.

Item	Lost Foam Casting	Vacuum Casting
Suitable Castings	Small and medium-sized castings with complex cavities, such as engine block, engine cover	Medium and large castings with few or no cavities, such as cast iron counterweights, cast steel axle housings
Patterns and Plates	Foam patterns made by moldings	Template with suction box
Sand Box	Bottom or five sides exhaust	Four sides exhaust or with exhaust pipe
Plastic Film	The top cover is sealed by plastic films	All sides of both halves of sand box are sealed by plastic films
Coating Materials	Water-based paint with thick coating	Alcohol-based paint with thin coating
Molding Sand	Coarse dry sand	Fine dry sand
Vibration Molding	3 D Vibration	Vertical or Horizontal Vibration
Pouring	Negative Pouring	Negative Pouring
Sand Process	Relieve negative pressure, turn over the box to drop sand, and the sand is then reused	Relieve negative pressure, then the dry sand falls into the screen, and the sand is recycled

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That has a positive and progressive attitude to customer's interest, our organization consistently improves our products quality to satisfy the demands of shoppers and further focuses on safety, reliability, environmental specifications, and innovation of 2020 Good Quality Lost Foam Casting Company - Alloy Steel Lost Foam Casting Product – RMC Foundry, The product will supply to all over the world, such as: Jordan , India , Madrid , Our R&D department always designs with new fashion ideas so we could introduce up-to-date fashion styles every month. Our strict production management systems always ensure stable and high quality products. Our trade team provides timely and efficient services. If there are any interest and inquiry about our products, please contact us in time. We would like to establish a business relationship with your honored company.

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