Injection Mould Construction

A molding according to the function of each of its parts can be divided into four sections 1. Introductory part of the plastic nozzle into the cavity cavity 2. penunjuang system (support system) 3. demolding system 4. heat transfer system

Thursday, March 8, 2007

Assembly Inspection New Mold

Pre-Assembly Inspection for a New or Reworked Mold there are following important point to check list when assembly a new or reworked mold, following pinture below show three plate mold when all parting line open• Check all shutoff areas with spotting blue. Tryout any pieces to be insert molded in assembly,...

Assembly and Disassembly Mold

The following is a good checklist for disassembly and assembly of a plastic injection mold. Some of our customers to not have trained moldmakers on staff to perform this kind of assembly and disassembly so we have listed a procedure here to help give your tooling room staff a good start, HOWEVER, this...

Wednesday, March 7, 2007

Hot runner construction and method

Hot runner is a method in plastic injection molding with a mold suitable for use insimultaneous molding of a large number of articles at a time by hot-runner molding technique. The mold has a hot-runner block in which disposed are a plurality of gates through which the molten resin is delivered to the...

Mold part and construction

Many type of mold in the platic industry but generally mold devide in 3 big section there are :Two plate moldTwo plate mold basically when opening the product after plastic injection process mold just devide in two parts core side and cavity side, this type molding only have one parting line, product...

Monday, March 5, 2007

Polystyrene Injection Process

Polystyrene is one of the best materials for injection moulding. Cycle times with polystyrene are usually short due to ease of melting, fluidity and reasonable set up times. Complex tooling can be used.The surface finish of the final product is also good, and the low mould shrinkage of polystyrene is a useful factor.Moreover, due to good inherent thermal stability, polystyrene can easily be recycled.Finally, polystyrene can be easily compounded...

Injection moulding preparation

Each mold works starts with preparation of the molding machine and peripheral device and check of the mold and material, This basic injection mold preparation is Preparation of moldPreparation of plastic materialInstallation of moldSetting temperatureSetting molding conditionStarting molding Those a step by step to prepare moulding, the explanation each step can read below 1. Preparation of mold Before installing a mold, check the...

Sunday, March 4, 2007

Blow Molding

Blow Molding is a highly developed molding technology developed back in the late 1800's to produce celluloid baby rattles. It is best suited for basically hollow parts (such as plastic bottles) with uniform wall thicknesses, where the outside shape is a major consideration. The first polyethylene bottle was manufactured using the blow molding process in December of 1942. This was the real beginning of a huge industry which currently produces 30...

Saturday, March 3, 2007

Injection Molding Basic Knowledge

So, what is injection molding?To put is basically, injection molding is the process of forcing melted plastic in to a mold cavity. Once the plastic has cooled, the part can be ejected. It is useful when the parts are too complex or cost prohibitive to machine. With this process, many parts can be made at the same time, out of the same moldInjection Molding is the process of forcing melted plastic in to a mold cavity. Once the plastic has cooled,...

Molding Methode

1. Injection moldingis a manufacturing technique for making parts from thermoplastic material. Molten plastic is injected at high pressure into a mould, Injection mouldings count for a significant proportion of all plastics products from micro parts to large components such as bumpers and wheelie bins. Virtually all sectors of manufacturing use injection moulded parts - the flexibility in size and and shape possible through use of this process have...