ABS,PP,PC,PA,PE Automotive Plastic Injection Tooling & Molding
Parts
1. 3d Design/Samples for quotation: According to 3D drawing or
samples for quotation.
2. Negotiations: Including the price of moulds, moulds sizes,
material for cores & cavities, weight of product, product color,
payment, moulds lifetime, delivery, etc.
3. Purchasing Order : After the customer confirming the mould
design and quotation.
4. Making mold(moulds): Confirm drawing, start to do DFM, mold
flows and mold detail agreed with the customer, start producion.
5. Production schedule: Every week we will feedback to the customer
about the mold progress(picture).
6. Sample shoot: We provide the moulds test samples for
confirmation(about 10-15 piece), we will start mass
Pproduct Info
| Plastic Material | PP,ABS,PA66,PA6,PC,POM,PBT, PMMA, PPS, PPU,PPE,TPE, or other you
want. |
| Plastic Surface finish | Polishing finish,Texture Finish,Glossy Finish, Wooden finish,
Painting,Slik print, VDI-3400 |
| Drawing format | UG, IGES, STEP,x_t, AutoCAD, Solidworks,Catia, PTC Creo, DWG, PDF,
etc.. |
| Certificated | ISO 9001, IATF 16949, ISO 14001 |
| Range of markets | Radiator grille,Hood,Pillar,Outer mirror,Door moulding,Door
trim,Inner panel,Seat, fuel tank valve, Air conditioner, housing,
center console,Instrument panel, Horn,Air bag system, Cup holder,
Key switch, Grating. |
| Mould Material | 2343, 2344, S136, 2085, 2738,M310,M333,W300,DC53,S-7, 8407, Unimax,
Viking, SKD61, NAK80,H13,P20, 718,2767 |
| Hot runner | Synventive, Incoe, HRS, moldmasters, HUSKY, EWIKON, Guenther. |
| Injection machine size | 45 ton, 80 ton, 120 ton, 160 ton, 220 ton, 300 ton, 400 ton, 650
ton, 850 ton, 1000 ton, 1750 ton |
| Cavity | 1,2,4,8,16,32 |
About Injection Molding
Injection molding is the most common modern method of manufacturing
plastic parts. It is used to create a variety of parts with
different shapes and sizes, and it is ideal for producing high
volumes of the same plastic part. Injection molding is widely used
for manufacturing a variety of parts, from the smallest medical
device component to entire body panels of cars. A manufacturing
process for producing plastic parts from both thermoplastic and
thermosetting materials, injection molding can create parts with
complex geometries that many other processes cannot.
The first step of getting a plastic part injection molded is to
have a computer-aided design (CAD) model of the part produced by a
design engineer. The three-dimensional (3D) CAD model then goes to
an injection molding company where a mold maker (or toolmaker) will
make the mold (tool) that will be fitted into an injection molding
machine to make the parts.
Molds are precision-machined usually from steel or aluminum, and
can become quite complex depending on the design of the part.
Plastic materials shrink at different rates when they cool, so the
mold has to be constructed with consideration for the shrinkage
rate of the material being used for the parts. In other words, a
formula is applied in the construction of the mold to slightly
increase the size so that when the plastic shrinkage occurs, the
part will be to the dimensional specifications of the CAD model.
The Process
Plastic injection molding is a manufacturing process where resin in
a barrel is heated to a molten state, then shot into a mold to form
a part in the shape of the mold. The resin begins as plastic
pellets, which are gravity fed into the injection molding machine
through a funnel-shaped hopper. The pellets are fed from the hopper
into a heated chamber called the barrel where they are melted,
compressed, and injected into the mold’s runner system by a
reciprocating screw.
As the granules are slowly moved forward by a screw-type plunger,
the melted plastic is forced through a nozzle that seats against
the mold sprue bushing, allowing it to enter the mold cavity
through a gate and runner system. The injection molded part remains
at a set temperature so the plastic can solidify almost as soon as
the mold is filled.
The part cools and hardens to the shape of the mold cavity. Then
the two halves of the mold (cavity or “A” side and core or “B”
side) open up and ejector pins push the part out of the mold where
it falls into a bin. Then the mold halves close back together and
the process begins again for the next part.
