Plastic Injection molding is what people call the process of filling a plastic mold with liquid plastic and waiting for it to take shape. An injection mold maker is the machine that makes the mold for injection molding. An injection mold maker makes molds from metals, usually steel or aluminum. The process calls for precision because a mistake means a repeat of the process or the part made will not be ale to function well enough and may be substandard.

The process of plastic injection molding relies solely on the accuracy of the injection mold. If the plastic injection mold maker makes a mistake in making the necessary molds needed to produce plastic product, the over all effect will be defective. The mold maker must have the precise measurements of the mold it will make in order to fully meet the standards of the manufacturer and client.

Materials Used in the Process of Plastic Injection Molding:

The usual materials used by plastic injection molding are plastic materials like polystyrene, acrylonitrile butadiene styrene, nylon, polypropylene, polyethylene and PVC. These are the liquid plastics that are usually used by injection molds to produce the plastics that they will then sell. The polystyrene material is lower in cost and in material grade. ABS is a plastic that is hardier than the previous one but not flexible. Nylon can resist mot chemical and is more flexible the previous two. Polypropylene is the plastic usually used to manufacture containers because they are tough and flexible. Plastic Injection molding is also utilized for metal works.

Plastic Mold

Plastic Mold

A Plastic injection mold maker will have to make more molds if the molds are used for metal molding. Metal molding wears out the molds more than plastic molding because the melting temperature of metals is higher than plastics. Despite this additional cost, manufacturers still utilize injection molds for metal molding because the prices of metals that are molded this way are still profitable.

Uses of Plastic Injection Mold:

Plastic Injection molding is a manufacturing technique that is used for making parts from thermoplastic materials in production. After a product is designed by an industrial designer or engineer, the models are then made by a mold maker or toolmaker from metal, usually steel or aluminum.

Plastic Injection Mold is a method of molding in which the molding material is first placed in an open, heated mold cavity. The mold is then closed with a strong top force or plug member, and pressure is put on to force the material into contact with all of the mold areas, and then proper heat and pressure are maintained until the molding material has completely cured.

The injection unit of injection molding machine is much like an extruder. The injection unit melts the polymer resin and injects the polymer melt into the mold. It consists of a barrel that is fed from one end by a hopper containing a supply of plastic pellets. The unit may be: ram fed or screw fed.

The injection unit consists of a granulate hopper, cylinder, screw, nozzle, heating bands and hydraulic drives and serves the purpose of melting and injecting the moulding material.

Injection-molding-machine

Injection-molding-machine

Injection screw

The reciprocating-screw machine is the most common. This design uses the same barrel for melting and injection of plastic.

The alternative unit involves the use of separate barrels for plasticizing and injecting the polymer. This type is called a screw-preplasticizer machine or two-stage machine. Plastic pellets are fed from a hopper into the first stage, which uses a screw to drive the polymer forward and melt it. This barrel feeds a second barrel, which uses a plunger to inject the melt into the mold. Older machines used one plunger-driven barrel to melt and inject the plastic. These machines are referred to as plunger-type injection molding machines.

Plasticizing cylinder

Screw position at the end of the dosage process; the plasticized material is in front of the screw tip. Screw position after the injection process; the plasticized material is injected into the mould. A material cushion is left in front of the screw for injection into the mould during the holding pressure phase.

We are A Plastic Molding Parts Manufacturing Company, ISO 9001:2008 Registered, Cost-Effective Manufacturing Process, High Quality Products, Quality Assurance

Finding the right source for all your injection molded thermoplastic parts is as easy as selecting DONGGUAN SINCERE TECH CO.LTD (SINCER ETECH). If you need quality injected-molded parts from an ISO 9001:2000 Certified supplier, and you need them on time, ACM is the answer.

Plastic Mold & Plastic Molding Parts Service: Your One-Stop Solution

SINCERE TECH is a “one-stop, one-responsibility” company. our skilled, quality-minded thermoplastics professionals are committed to superior service, providing solutions to customers’ needs from concept to finished product. At our modern plastic molding facility you will be guaranteed:

  • Top quality products
  • The latest in technological equipment
  • Cost-effective manufacturing processes
  • Quality assurance procedures

We are capable of producing a wide variety of plastic parts and components, for industries of all types, including:

  • A / C Vents
  • Actuators
  • Bezels
  • Blood Testers
  • Boat Parts
  • Bobbins
  • Bottle Ties
  • Boxes
  • Brackets
  • Buckles
  • Cases
  • Clips
  • Component Boxes
  • Computer Peripherals
  • Connectors
  • Cosmetic Packaging
  • DVD / VCR Faceplates
  • Faucet Extrusions
  • Flower Pot Bases
  • Fuse Blocks
  • Gear Shift
  • Knobs
  • Gears
  • Housings
  • Junction Boxes
  • Key Fobs
  • Knobs
  • Lenses
  • Light Pipes
  • Motor Housings
  • Name Plates
  • Phone Parts
  • Push Buttons
  • Radiator Tops
  • Seat Belt Parts
  • Shields
  • Spacers
  • Spools
  • Switches
  • Tail Lamp Sockets
  • Toys
  • Trim Plates
  • Typewriter Parts
  • Vents
  • Vials
  • Wedges
  • Window Lift Parts
  • Wire Shields

SINCERE TECH’s Capabilitiesplastic mold manufacturing company

SINCERE TECH’s molding machines range from 60-ton to 2000-ton. We are equipped to mold products from many varieties and grades of resin, each with different properties, including:

  • Thermoplastic commodity resins
  • Engineering grade resins (filled and unfilled)
  • Elastomeric materials

Read more details about our Production Facility and Equipment.

Additionally, our facilities can provide a number of secondary operations, such as:

  • Assembly
  • Pad Printing
  • Painting
  • Drilling
  • Ultrasonic Welding
  • Milling
  • Ultrasonic Insertion

Read more details about our Production Facility and Equipment.

You are welcome to send us your new project, we will quote you with 24 hours, we will offer you the best solution for your new project to save you price, not only the injection molding process, but rubber molding, metal parts etc.

 

SINCERE TECH is  Injection Molding China Company offers injection moulding service to various countries in the world with the best quality and excellent injection moldings services. The company ST which is known to be the leader of the mold manufacturer, with all its dedication, developed and produced varieties of the injection molding parts. The optimal service, leading equipment, and advanced technology are valuable reasons for the success of the company. ST Injection Molding Service Company optimize the design based on the requirements of the customer and they are very attentive while designing the mold as they can save their money, reduces the processing and mould repairing time for their customers.

The plastic mold designing team of the company has 15 experts in making fully complete mold design, four engineers who inspect the mold design and two technical managers to verify the mold structure before mold manufacturing. This team possesses the ability to operate UG and PRO-E software with all their efforts. The engineers of the company have the specialization of the product so that they can provide their customers with worth able suggestions and technical supports. The design engineers of ST  injection mold China and Injection Molding China Company offer DFM( design for manufacturability)  in two business days and within five days they supply fully mold design to the customers.

Mold developments with perfect design, the top processing technologies with constant works are their key to success. The superior emphasis on design, sophisticated working devices, and ideal processing system provide their clients with more satisfaction. ST Injection Mold China Company has launched 3 automatic production outline in the surface treatment and workshop that is dustproof which is used in surface texture, surface spray, IMD, etc. ST Injection Mold Company provides its customers with injection mold making and injection molding services at low cost which could not be provided by their competitors. If you are looking for injection mold or injection molding china partner to support your business, then you could contact with our team, we will reply to you with two business days.

ST, An injection Mold China Company supplies many kinds of injection molds, injection molding parts, plastic materials and several plastic molding technologies based on the requirements of the customers. The R&D department takes the responsibility of analyzing and designing the plastic parts according to the needs of the clients. The project department of the company will perform the foreseen inspection of plastic parts moldings structure, process, and related parts situation. The analysis is also done by the professionals whether the moldings are manufactured according to the design.

The production of the plastic molds is completed by the Professional MOLD FLOW Software, temperature control, gate assignment, cooling time and analyze injection process which would enhance the mould design. The project manager is responsible for the outline process, precision machining, rough machining, machine process, assembly inspection, colliding and assembly and molding test. Molding test is performed to check the dimension of the injection molding parts whether it matches with the mating parts. The QC department of the company will inspect the plastic parts mould on product size, injection process, appearance, and physical performance.

ST Plastic Mold Company has different inspection tool and inspection standard for different products. The company will make many testing the product withstanding pressure, tensile strength, impulse loading, and impact resistance. The company has as an abundant experience which is applied in the production of plastic part moldings so that the customers will be provided with the products of a superior standard. The plastic parts are subjected to various surface treatments to make the plastic molded parts having an excellent shape which is related to the customers’ need.  According to the order documents, the company will perform a strict inspection before the shipping of the products. If you want to know more information regarding the injection molding parts or if you have any project that needs an injection mold china company to support with injection mold making and injection molding parts production, welcome to send us your RFQ, we will quote you in two working days.

PP injection molding
insert molding

Insert Molding metals and plastics together in a molded part, or multiple metals or materials molded together into a single molding part. we sometimes called metal insert molding or metal screw/brass insert molding, sometimes we call insert molding as over-molding. Insert molding (moulding) can be used in automobile, cooking ware, household equipment, instruments, devices, knobs, electrical components and more industrial, Insert molding is not only reducing assembly and labor costs but also better than assembly part, reduces the size and weight of the part, improves component reliability, and delivers improved part strength and structure with enhanced design flexibility.

Today over 90% of insert molding parts are come from China molding manufacturing, the most important thing is China has low labor cost and high-quality control, and another factor is China can do assembly all of your ending parts together and ship to you, we are professional in plastic mold making and plastic molding manufacturing over 18 years, we have strong engineering, mold maker team, quality control production, we can make your project from start to end, no matter normal molding, 2k injection molding, insert moulding (molding), medical plastic molding, automobile industrial, cosmetic injection molding parts, or home appliances injection molding.

The Process of insert moulding ( molding)

The process is same as injection molding process, and use same injection molding machine to inject molten raw material into a plastic mold – the plastic is then solidified by cooling systems- and then the press opens and the molded parts are ejected, one different is before mold close we need put the metals into the mold and start all of injection molding process as injection molding,

Insert molding uses the same materials as the injection molding process except the metal added into mold before mold close. For intense, the same thermoplastics are used. Same mold steel, same mold structure, same injection molding machine, maybe sometimes need to use vertical injection molding machine for some special case, but all are injection molding machines which are working on thermoplastics

Some injection Molding manufacturers use vertical/vertical injection molding presses that use gravity to help in the insert molding process by maintaining the insert in position during mold closing. Insert in position during mold closing.

Most vertical insert molding machines have a feature that utilizes multiple bottom mould halves to be used with a single cavity half. While one bottom half is molding with the cavity half, the other bottom is available to be loaded together with the metals and other inert molding components.

Since multiple Bottom halves make it possible for inserts to be placed in one bottom half while the other one is in the molding step, cycle time is reduced.

Below are some of the inert molding parts we made before. If you have any project that needs brass insert molding or any metal insert molding, send us your requirement for a quotation.

How the insert molding can improve your molding parts and solve your issues.

Insert molding can be a highly efficient alternative to the assembly of discrete parts using soldering, connectors, fasteners, or adhesives. Its benefits over such methods include:

Insert molding can be an extremely efficient alternative to the assembly of the device, fasteners, connectors, or adhesives. To list all of the advantages there are some benefits for molding part as below:

  1. Reduce molding parts size
    Since molding parts that have a metal insert molded together with plastics, so the part size can be designed smaller compare to assembly parts, and the part weight will be less than the assembly parts, this will reduce the material cost which means save the cost by the better result.
  2. Reduced assembly and labor costs
    Because insert molding made by a single shot but have two or more parts joint together in an ending molding parts, this reduces assembly and labor costs, only need a worker to put the insert part into the mold during the molding production, a single insert or multiple inserts can be molded in one shot, the more complex insert molding part than the more benefits with insert molding
  3. Increased reliability
    Insert molding is molded together by the plastic molding process. So every part tightly molds in thermoplastic, an insert molded component prevents part loosening, mismatch, misalignment, and other problems. The plastic resin provides improved against shock and vibration.
  4. Increased design flexibility
    As a designer should be appreciated that it is a molding process with insert molding. Because we have this insert molding process, the designers will e save time to think about how to assembly the part together. Hot to fasten the metal parts and plastic part tight together. How to save the place for other components, so the process to let them design jobs more efficient.
  5. Save injection molding cost and work more efficient
    When inserts are used during the moulding stage than standard injection molding machines sometimes make it more difficult for operators to put inserts into their correct place in the mold. Like some small metal parts or multiple metal parts or some insert parts are easy to drop done the floor when put the inserts molding into the mold, for this reason, vertical injection machines are most efficient, this will save lots of time and injection molding cost.

Looking for insert molding service for your business? Please contact us and send us your 3D drawing, and the requirement for quotation, we will send you the price with 24 hours, to work with us we will solve your issue with part design, mold making, massive production, and part assembly. Get a quote now.

 Injection Molding & Injection Molding China

We are an Injection molding China Company, professional in Injection mold and injection molding manufacturing, Sell plastic parts from China to the world, we have been provided with the best quality the over 40 happy customers which they are fully satisfied by our quality and service, you are welcome if you need our supporting, we sincerely hope we could service in the near future and you will be surely happy as same as our other happy customers.

A variety of commercial methods are used to produce thermoplastic plastic products. Each has its specific design requirements, as well as limitations. Usually, part design, size, and shape clearly determine the best process. Occasionally, the part concept lends itself to more than one process. Because product development differs depending upon the process, your design team must decide which process to pursue early in product development. This section briefly explains the common processes used for thermoplastics from Bayer Corporation. Injection Molding, today lots of companies buy molding parts from injection molding China companies, if you need injection molded parts for your business, you need really think about this.

Do you need injection molding or are you looking for injection mold china partner to make plastic molds and produce the parts for you? Send us an email we will reply to you with two working days.

If you want to know more knowledge, please go to our other injection moulding page.

 

Plastic Injection molding China

We have over 15 years of experience in offering high quality plastic mold and plastic Injection molding production  in different shapes and sizes.

We have a team that supports you from part design, mold making and massive production.

To save your cost we provide professional technical expertise and advice to enable you to decide the kind of mold that suit your product.

Over the years we have been able to deliver high quality services with guaranteed satisfaction and we hope to deliver same to you.

Send us your requirement for quotation we will quote you within 24 hours.

What is plastic Injection Molding

Plastic Injection molding can be defined as a procedure, which can help in shaping plastic, in its requisite fold. Moreover, for the better shape, you might want to take help of rigid mold or frame. This technique can also be used to deal with the objective creations, associated with the various shapes and sizes. Moreover, the products comprise of both highly and simple designs. On the other hand, some companies can even offer complex designs, to match the growing demands of the clients.

Plastic molding process

For the primary step, you need to go through the plates of sheets, where the liquid material will be placed. The high melting point is used to deal with the right melting the plastic or other raw materials. After placing the liquid in the structure, high pressure is incorporated from outside, for availing the right shape of the dice. After a mold is cooled down completely, you can remove the molded parts and use for the final manufacturing services. However, you need to determine the material’s amount along with minimum energy requirement, associated with the heated melting point.

Underlying concept available

When you are Looking for China Injection Molding manufacturer, you are easily to get hold of correct underlying concept, associated with the plastic injection molding . The main aim is to take a look at the dice first, to produce the exact shape, as per the requirements. To match up with the growing demands of clients

More on injection molding

Whenever the main area relates to injection molding service, you are in urgent need of the mold cavity. After cooling down the product, the mold can be removed from this place, with ease. This procedure of plastic mold China is primarily associated with the prototyping or mass production service, of the related products. The first use of this procedure can be observed in the year 1930’s. From that time on wards, various advancements make this product a leading choice for all. This method can be used for manufacturing various objects, like bottle caps,automotive parts, utensils for the kitchen, cell phone stands and more.

Most polymers can be used in the process, and products produced by injection molding include bottle lids, plastic combs, small pieces of furniture and even car door panels. Essentially, the injection moulding process involves feeding plastic polymers in a pelletized form through a hopper into a chamber.

As the material passes through the chamber a rotating screw mixes and melts the material. Once sufficient molten plastic material has collected at the end of the chamber the screw acts as a plunger and the material is injected into a mold, usually made of metal. Molds are carefully designed to reflect the exact requirements of the product being produced. Finally, the plastic solidifies into a shape that has conformed to the shape of the mold. Once cooled slightly, sometimes a robotic arm is used to remove the molded components, but it is more common for the freshly-made items to drop out of the mold into a chute leading to a collection container.

An injection molding machine is used to manufacture plastic products by the injection molding process detailed above. There are two main parts to the machines – the injection unit and the clamping unit. Please go to our injection molding section area to know more information

Injection Mold Company