V Process Molding System and Sand Reclamation Line
|FOB Price:||US $71,000-111,000 / Set|
|Min. Order:||1 Set|
|Min. Order||FOB Price|
|1 Set||US $71,000-111,000/ Set|
|Production Capacity:||50 Sets/Year|
|Payment Terms:||L/C, T/T|
- Type: Clay Dry Sand
- Sand Core Type: Clay Sand Core
- Machining: Boring Machine
- Surface Treatment: Sand Blast
- Control Type: PLC
- Transport Package: Bulk
- Casting Method: Vacuum Aspirated Casting
- Application: Machinery Parts
- Material: Steel
- Surface Roughness: Ra1.6
- Capacity: 10t/H
- Origin: China
V method casting
V method casting, because the English Vacuum (Vacuum) of the word "" V" for the name. It different from traditional sand casting's biggest advantage is that do not use glue, V method casting is the use of plastic film sealing sand box, the air inside by draw out type vacuum extraction system, mold, both inside and outside differential pressure, the density of dry sand, the formation of the cavity and the core, box, pouring vacuum casting solidification, remove negative pressure, casting sand with the pieces.
Put like on a piece of hollow plate, like on a large number of vent, when the vacuum effect, these holes will help make the plastic film is clingy on appearance.
(2) thin film heating
Stretching rate and high plastic deformation rate of the plastic film heater heating softening. The heating temperature is in commonly 80 ~ 120 ºC.
(3) thin film forming
Will soften the mulch in shape on the surface, through the air hole, under 200 ~ 400 MMHG vacuum suction, make the film close to on the model surface.
(4) put sand box
(after spray coating and drying process does not need to also can be), will be dedicated sand box on the covered with a thin film of the model.
(5) the sand compaction
Will fill better efficiency, dry sand particle size is 100 ~ 200 purpose to join the sand box, then carries on the micro vibration, make the sand compaction to higher density.
(6) cover mould
Cast starting koubei, sand surface leveling, cover with plastic film, in a closed flask.
Sand box vacuum with cover in the thin film on the surface of the sand box, under the action of atmospheric pressure, make the mould hardening. Draw, release the vacuum negative pressure, remove templates for film adsorption force, and then draw roof-box, completed a cast.
(8) tanks on pouring
Before the tanks according to process needs iron core and cold, the box up and down together, forming a gate riser and cavity mould, casting in vacuum condition.
(9) to take off the box shakeout
Properly canceled after vacuum cooling time to restore normal pressure condition, make the free flow of sand flow, save a chunk, clean without mechanical adhering sand castings. The sand after cooling can be used again.
Advantage of our product and our company:
1. V process Do not need any glue, and recovery rate can reach at 95%.
3.save cost, save labor
6. We have our own independent exporting&importing right
V method casting and epc compared with the traditional sand casting, has the following advantages:
The first, because of the suction pouring casting sand holes stomata, product high compactness, smooth surface, less size outline clear and accurate;
Second, the energy conservation and efficient cleaner production. V method and mold technology can make the dry sand repeatedly use, need not drying type, coal consumption is reduced, but due to long vacuum machine operation, power consumption increases slightly, but greatly reduce dust, save human capital, and make the casting work more efficient, save labor and greatly reduce the labor intensity, less harmful gas in the process of casting, truly realizing green production.
V key point is to select the vacuum extraction system, method of production at the time of use vacuum extraction system, the first thing to determine the capacity of vacuum pumps, mainly consider the following factors:
1, needs to work under vacuum at the same time, the size and number of the sand box;
2, at the same time, the number of mold casting;
3, the size and shape of the casting;
4, close to the membrane permeability on the surface of the mold, it controls through the plastic film on the gap amount of air into the mold, thus when pouring, it is necessary to use a small amount of mold coating, it helps to provide vacuum machine with a "secondary seal layer".