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Automatic Molding Castings

Dandong Foundry uses FBO automatic molding line to produce iron castings parts for vehicles, cars, trucks, tractors, plow points etc.

The advantages of automatic molding are high production rate, good dimensional tolerance, good surface quality, and very stable casting quality.

However, the disadvantages are high metal pattern cost, high min. order quantity, the limitation of size and unit weight of castings.

Products Show

ductile iron fly disc

ductile iron tractor parts

auto parts

pump shell

small wheel hub of vehicle

ductile iron vehicle parts

automatic molding casting parts

small pulley for cars

Automatic Molding Production Process
1. Making Metal Pattern

Iron patterns are the necessary tooling for automatic molding line, so the pattern cost is high comparatively. The metal patterns are made by CNC milling machine, so the dimensional tolerance and surface quality are very good.

2. Automatic Molding

The automatic molding line can perform the molding process automatically, only need one worker to operate the machine.

3. Melting Iron

During molding, the electrical furnaces will start to melt the irons. The raw materials for ductile iron and grey iron include pig iron, scrap returns, and alloy agents. Dandong Foundy has four 1.5 tons furnaces.

4. Inoculation Treatment (Nodulizing)

After melting, the workers will move the large pouring ladle to the ductile iron inoculation treatment station. After automatic nodulizing, the raw iron will become ductile iron. Dandong Foundry uses this station to guarantee the stable inoculation quality. The traditional inoculation method can not reach high nodulizing quality.

5. Pouring

After nodulizing treatment, the workers will pour the liquid iron in the large pouring ladle into small pouring ladles. Then, each worker takes one small ladle to pour into the sand molds.

6. Sand Blasting and Grinding

When the castings removed out of sand molds, the iron castings will be cleaned by sand blasting equipments. Then, the workers will grind the gating heads, and parting lines.

7. Machining

After cleaning and grinding, the castings will be taken to the machining workshop. The workers will machine them according to the machining drawings and requirements. Dandong Foundry can complete the rough and finish machining works in-house.

8. Machined Casting Parts

After machining, the casting parts will be completed. Then, they will be inspected and packed for delivery and shipment.

 


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