Lost foam sand casting machine

 

LFC casting process is advantageous for very complex castings that would regularly require cores, to very simple castings saving environment and is more efficient, eventually better profits.

It is also dimensionally accurate, maintains an excellent surface finish, requires no draft, and has no parting lines so no flash of fins are formed. The finish accuracy is so good that even machining in many cases is not required.

 

As compared to investment (Lost Wax) casting, it is cheaper because it is a simpler process and the foam is cheaper than the wax.

 

Risers are not usually required due to the nature of the process; because the molten metal vaporizes the foam the first metal into the mold cools more quickly than the rest, which results in natural directional solidification.

 

Foam is easy to manipulate, carve and glue, due to its unique properties. The flexibility of LFC often allows for consolidating the parts into one integral component; other forming processes would require the production of one or more parts to be assembled.

 

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.

 

 

Product performance and characteristics

1. After aging treatment using cast iron plate and quenched by 45 # steel columns, structural design is reasonable, strength, corrosion;

2. By clicking on the belt, worm, silk cap screw drive, both overload protection, and a relatively high clamping force;

3. Standard screw pitch, both to ensure speed and can effectively prevent the rise in the board;

4. The machine is  easy to maintain and simple.

 

  

 

  

About Qingdao Shengmei Machinery Co., Ltd

 

We represents some of the world leaders in Vacuum Process and Lost Foam Molding Technologies. Provides Consultancy and Turnkey solutions for Foundry Modernization and Iron & Steel Projects. Operating Old Foundries eats away your profit margins as they are not Energy Efficient and technologies and methods being followed are mostly obsolete.

 

Lost foam molding equipment adopts Mechanical turbo regeneration methods to achieve the reclamation of used sand. The machines of shakeout, crushing, reclamation, cooling, transporting, molding and dust collection are in good quality and wonderful service.