Eps Shape Molding Lost Foam Casting

Eps shape molding lost foam casting is used together with mould to produce packaging products like electrical packing, vegetable and fruit boxes, seedling trays etc. and construction products like brick insert and ICF etc. With different moulds, the machine can produce different shape.
Machine completes with PLC, touch screen, material hopper, efficient vacuum system, lifting legs

1. This Eps Shape Molding Lost Foam Casting adopts PLC and touch screen technology, automatic feeding, electronic weighing, temperature control, and material level control to realize automatic and continuous production.
2. The electronic weighing system and material level control system ensure the density of the foamed beads, making the beads uniform, and the density tolerance is within 2%.
3. The Japanese original pressure-reducing valve controls the steam pressure in the cavity to ensure a constant output pressure of the valve and a stable temperature in the cavity so that the foaming material is uniform and prevents beads from agglomerating due to poor temperature control.
4. An automatic feeding system to improve efficiency and reduce labor intensity
5. A closed, constant-pressure foaming barrel with high heating efficiency It can save more than 50% more energy than the continuous pre-expanding machine.
6. The pre-expansion machine automatically discharges the material, automatically filters and crushes the spherical material, and transports the foamed material to the silo.
7. Eps Shape Molding Lost Foam Casting most of the main components are from world-renowned brands with reliable performance, stable quality, long service lives, and low maintenance costs.

FAQ

Q: What's your terms of payment?

A: We alwaysaccept the T/T 30% as deposit,and 70% payment before delivery.other payment terms can be discussed. 

Q:Do you have videos for checking the machinery?

A:Yes,we can provide some machinery's videos for reference and also can guide you visiting our customer's factory for the site studying. 

Q:What Is Lost-Foam Casting?

A:Lost-foam casting, also known as evaporative casting or the expanded polystyrene process, is a sophisticated technique for crafting intricate metal components. This procedure makes use of an expanded polystyrene (EPS) foam mold. The foam pattern may be cut from a foam block, carved, or produced using a process akin to injection molding. The foam mold is then given a ceramic refractory covering to isolate it from the sand surrounding it in the mold frame. Sand holds the EPS mold in place as molten metal is poured into it. As the foam evaporates, the required metal shape is left behind. This process of Lost-Foam Casting is carried out using an EPS shape molding machine. We are professional EPS shape molding lost foam casting suppliers.

Q:What is the process used by EPS shape molding lost foam casting factory?

A:First, a foam pattern and gating system is made, in most cases using the foam molding press. The process of pattern making can vary depending on the number of items that will be replicated. In most cases the pattern is molded in polystyrene (2.5% polystyrene and 97.5% air) in a closed mold.
The pattern can be molded with either the risers and gates already in place, or it can be assembled (usually glued) from various molded parts. In the pattern making process, very detailed attention is needed as it will determine the quality and reliability of the final product.
Techniques for making patterns include: Closed die molding, assembly of the pattern from various parts and machining the pattern from a solid piece of polystyrene.
The gating systems and pattern (either one molded piece or assembled from various parts) are glued together to make what is called the cluster. This cluster is now coated with a permeable refractory coating and left to dry under very controlled conditions. A hard shell and supportive outer mass is formed around the pattern.
This 'coating' is very much like the one seen in lost wax casting and manufacturers will make use of various 'coating' materials, depending on the requirements of the final product and, more particularly, the desired finish.
This dried and coated cluster is now invested in a foundry flask with loose, unbounded sand which is vibrated in order to provide a tight compaction, leaving behind the pattern/shape in the sand.
Now the molten metal is poured on to the top of the gating system, which is responsible for directing the molten metal through the cluster. The molten metal being poured causes the the pattern made in the first step to immediately vaporize.
Pouring will continue until the mold is filled and, in cases where the use of risers are not applied, extreme care is taken to ensure that the correct amount of molten material is poured.
Once the mold has been filled, it is left in order for the molten material to solidify. Once solidification has taken place, the sand and shell mold is broken, and risers and gates are removed, leaving behind the final casting/product.
The final product can then also be heat treated or undergo other finishing operations much like what is seen in other casting processes.

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