Nowadays, mostly all trade produce quantitatively. Injection molding becomes more and more influenced in manufacturing. We use injection molding to mold parts of engine, daily necessaries, plastic water cup or somethings like these. This article will provide information about injection molding. After reading this essay, you will find the answer of how to make injection molding.
Basic Types of Injection Molding
There are some basic types of injection molding.
Thin wall molding: This injection molding technology is widely used in daily necessaries, product packaging. It injects plastic material into a very thin wall. This kind of injection molding technology need considered design and very professional supports to ensure that the finished mold is available without any quality issue.
Gas-assisted injection molding: This injection molding technology is used to solve the problem of the distortion of thin plastic injection-molded objections as cool. It injects air into mold thus you will get a smooth surface plastic products with porous or hollow inside. With this injection molding technology, your injection-molded production is more resistant against deform in a cold situation, either lower cost in produce.
Mental injection molding: Not only plastic can be molded, but mental. This injection molding technology is more expensive than plastic injection molding, and it aim market also narrower than plastic molding.
Liquid silicone injection molding: Liquid silicone injection molding usually take thermoplastic material to make parts. Common plastic injection molding is thermoset, which means plastic injection-molded prats usually can not be melted again. If you products work in an extreme hot environment, liquid silicone injection molding will help you produce parts with the resistance of high temperature.
3D printing: This injection molding technology plays the role as prototyping. It printing a mold for you then make injection molding with plastic or metal material to make products.
Injection Molding Process
The main parts of plastic injection molding machines are nozzle, charge, runner, ejector pins, part cavities. Melted materials injected form charge along nozzle fully fill with runner and part cavities. Finally are pushed by ejector pins to conveyor. This is a complete process of making injection molding.
If you want to make plastic injection molding, you should consider two factors during molding process.
The injection molding maker and plastic resins of injection molding.
Injection Molding Maker
The plastic injection mold company provides injection mold machines for you. Find a reliable injection molding maker is a half of success in your injection mold business. A reliable injection molding maker is a powerful backing of your business. He can help you deal with any problem that may meet during plastic injection molding process.
Plastic Resins of Plastic Injection Molding
There are common plastic reins of plastic injection molding.
ABS: also called acrylonitrile butadien styrene. This kind of resins is widely used in industries and applicants. Plastic injection molding prefer ABC not only for their superior toughness and strength features, but also their impact resistance and temperature resistance. It can easily molded and is colorfast.
Celcon ( Acetal ): This kind of materials has outstanding toughness, excellent wear, creep resistance. It has the resistance of chemical solvent, good heat distortion, low moisture absorption. It also easy to colorize.
Polypropylene: With the feature like chemical resistance, elasticity and toughness, fatigue resistance, insulation properties, polypropylene has become one of the most using plastic injection molding materials in the world. While this kind of materials is flammable, and easily to be degraded by UV radiation.
Hips ( High-impact polystyrene ): This kind of materials has good impact resistance, fine dimensional stability, outstanding aesthetic qualities, it can be easily cut by machine. It also is flammable, while it can be used as flame-retardant varieties.
LDPE: Low-density polyethylene (LDPE) is the most flexible type of plyethylene. It has superior moisture resistance, high-impact strength, good chemical resistance, and translucence, weatherproof. It also can be easily processed with most methods.
What Should You Consider When You Make Injection Molding?
Injection mold is repeatable that is you can use this injection mold many time, create a mass-production, even arrange it in your production line. Lower production cost is its advantage, but it has a huge up front cost. If you take mistake in injection mold making, you may spend other expensive cost to correct it.
Therefore the most considered factor in injection molding is cost. You should consider the profit and cost when you produce products. The products you produced should offset the cost that you spend on the injection mold machine.
Product design is other factor you should consider when you make injection molding. A excellent design will avoid defects during production, and help you minimize cycle time. Part design and tool design you should consider in product.
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