Plastic signs need to pay attention to three important links

Plastic plate production need to be aware of three important links in the process of plastic plate processing in a single manger make a big waste, is sometimes double groove to the multimode cavity feeding. At this time although two do vary slightly, the weight of the manger still need a rung to balance each material the pressure in the tank. Part one: the pressure rod die casting mould is also called note material bar type mold, it USES an auxiliary pressure plunger forced injection rod into the material tank ( Or cylinder) , is expected to take out from the trough to the cavity; Pressure die casting and die casting speed is easy to control, has nothing to do with the clamping pressure. Material plug type pressure die casting mould in the size of the manger ( Decide the size of waste plastic sign) Only need to big and deep enough to meet the right shoes. Wait part 2: the aniseed trough area by the die casting machine auxiliary plunger give force ( In tons) Divided exactly by 5 to determine. 5 tons/inch 2 is used as the molding pressure, pressure level for most die-casting material formula, the pressure is enough; Auxiliary plunger is usually installed on the upper part of the fixed clamp, downward; Punching plunger to move up the lower mold closing, when after the mould clamping, raw materials into the chute, auxiliary piston force f, clamping plunger and auxiliary force than the plunger, general 3:1 or 4:1; After curing, auxiliary piston back, open the die casting machine. Part three: mold plastic signs, waste parts, cold runner material was carried out a knockout pin at the same time, the casting mold of a deformation is three board material bar type injection die casting mould, there was a floating runner plate will be allocated directly to the cavity of the feed material feeding. The method is suitable for moulding line can't open port, or in the clamping plane moving core, plastic signs very irregular and ten one kan mai decorate. Special design of the die casting machine has the following several types: 1. Bottom squeeze rod die casting mould in die casting machine, the auxiliary plunger is installed in the main clamping plunger, if one or more of the die-casting unit, there is enough space between is the auxiliary piston installed on a pressure plate. The advantage of this approach is that the mould is opened to pack material manger. This design than before to charging manger faster wait for die design; And auxiliary piston stroke can be shortened, each cycle can save several seconds of time; With the die casting machine needle plug injection material rod die casting mould is available, but the preloading ingot to alignment, in order to ensure the material well into the trough, or die hard. 2. With to multiple chute feed many auxiliary plunger die casting machine, a rechargeable multiple cavity, does not produce waste, and don't need to low efficiency of long, curved flow channel. 3. Small with powder of die casting machine can automatic die casting, can level can also be a vertical operation, with clamping auxiliary plunger plunger vertical, moulding line note material for raw materials. 4. For precast overall molding compound ( BMC) , usually in the form of glass fiber polyester, horizontal die casting machine, with feeding accessories can be material compaction, and then sent to the die casting cylinder. 5. Die casting machine was the prototype of the thermosetting resin injection mould machine, the machine will screw plasticization and preheating mold together, after preheating material sent to moulding moulding line or tight lattice mold die casting in the cylinder. Above is our long-term experience in the manufacturing process of plastic plate making needed to pay attention to several key links, offer reference only.