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19 08, 2019

Plastic Injection Molding Defect Weld Lines

By |2019-08-19T00:14:52+08:00August 19th, 2019|Categories: molding part defect, Weld Lines|Tags: , |Comments Off on Plastic Injection Molding Defect Weld Lines

Weld Lines is a molding part defect that will reduce the part lifetime or even broken. Before massive production, function testing is very important,

Several years ago a customer transferred an old single cavity mold to our facility. The part was a very simple rectangular ring. It had two sub-gates, one at each end of the part on the short side of the rectangle. The material was glass filled and made a very strong part.

We made our first sample submission and were approved for production immediately. The next day we delivered the first parts for their order. A couple of weeks after the plastic parts were delivered I received an email from our customers General Manager thanking us […]

16 08, 2019

PBT Injection molding

By |2019-08-01T16:43:00+08:00August 16th, 2019|Categories: PBT Injection Molding, PBT Injection Moulding|Tags: , |Comments Off on PBT Injection molding

Polybutylene terephthalate (PBT) has advantageous combination properties such as a convenient source of raw materials, and mature polymerization process has gotten easier, low cost and easily forming and processing. Nylon, polycarbonate (PC), polyoxymethylene and modified polyphenylene oxide are five major engineering plastics.

PBT Injection Molding (Moulding):

PBT is a kind of crystalline polymer with a sharp melting point (225-235 Celsius degree). Crystallinity can reach 40%. When the temperature rises above the melting point, the liquidity of melt will become obvious. However, when changing from the molten state to the gruel state, it not only has the fast rate of cooling rate but has a fast crystalline speed.

PBT injection moldingIn […]

13 08, 2019

PA (Nylon) Injection Molding

By |2019-08-01T14:51:20+08:00August 13th, 2019|Categories: ABS injection molding, ABS injection moulding, Nylon injection molding, PA injection molding, PA66 injection molding|Tags: , , , , , |Comments Off on PA (Nylon) Injection Molding

Information about PA (Nylon) Injection Molding

Characteristic:
Nylon has tenacious and wearable, self-lubricious and smooth characteristic with non-toxic and antibiosis and high water absorbability. In addition, its tensile strength and stiffness will be sharply decreased with the moisture-absorbing. Then, the size of finished pieces changes greatly. If in the high-temperature environment for a long time, it will be resolved.

It will not soften gradually with increasing high temperature until closing to the extent of melting-point. Once reaching the proper temperature, it will flow. It is soluble in many chemicals. However, gas, lubricating oil, developer, detergent and grease have no effect on nylon.PA injection molding

Advantages:
It has high mechanical strength, good tenacity […]

10 08, 2019

Rapid Injection Molds

By |2019-07-28T12:19:57+08:00August 10th, 2019|Categories: Rapid Injection Molds, rapid mold|Tags: , , |Comments Off on Rapid Injection Molds

When discussing production processes like how injection molded plastics are made, there will obviously be short-cut processes that utilize the basics of the original but are able to do it faster and for smaller quantities. There are a number of reasons that a method like this, such as Rapid Injection Molds or rapid prototype injection molding, is necessary. When a company is developing a new product, they need to create prototypes to test before they run a full-line production. Sometimes a company needs a limited supply of products that are significantly fewer than the average number in normal mass production. With situations like these, the quickness and cheapness of rapid injection molding for […]

8 08, 2019

Injection Molding China

By |2019-08-12T13:41:36+08:00August 8th, 2019|Categories: china mold company, china mold maker, China mold supplier, China plastic injection molding companies, China Plastic Injection Molding Company, Injection Mold China, Injection Mold China company, Injection Mold Cooling System, injection mold maker china, Injection Mold Making, Injection Molded Components, injection molded parts, Injection Molded Plastic, Injection Moulding China|Tags: , , , |Comments Off on Injection Molding China

Injection Molding ChinaSincere Tech, funded in 2005, located in Dongguan city, Guangdong province, China, is a professional injection molding china manufacturer, specializes in making injection Mould & moulding service to the oversea customer,

If you have a project that needs an injection molding China manufacturer to support, you are welcome to send us your requirement for quotation, you will not lose anything but have our competitive price for your reference,

Worry about your project data being shared by others, no worry, we can sign an NDA document to protect your project.

If you work with us. You will be fully satisfied with our excellent service, quality and reasonable […]

7 08, 2019

Plastic Injection Molding Toys for Christmas

By |2019-08-13T20:54:48+08:00August 7th, 2019|Categories: molds, plastic molding toys|Tags: , , , , |Comments Off on Plastic Injection Molding Toys for Christmas

If Santa’s workshop really existed, it would be full of elves with excellent industrial and commercial manufacturing expertise. Particularly because our modern society has demands beyond wooden toy soldiers and cloth dolls with yellow yarn hair and the population continue to rise, mass production would be vital for the survival of the North Pole. A system that would be working on overtime this close to Christmas would be the equipment for Plastic Injection Molded Christmas Toys and plastic molding toys from plastic injection molding manufacturing. Plastic injection molding is one of the most common techniques for producing basic children’s toys, Plastic Christmas Toys, such as dolls, action figures, game pieces, outdoor game equipment and a variety […]

6 08, 2019

5 Axis CNC Machine

By |2019-08-06T21:37:57+08:00August 6th, 2019|Categories: 5 Axis CNC Machine|Tags: , |Comments Off on 5 Axis CNC Machine

5 axis CNC machine is used in modern industry for not only reducing the production cost, but also it saves time and increase the profit and accuracy of the job. Actually, 5 axis CNC is most useful for complex machining. We will explain it later.5 Axis CNC Machine

The most number of CNC machine is operated under 3 axis movement which is X, Y, and Z. Those movements are mainly up-down, right-left side and front-back movement. Maximum simple machining operation is performed quite completely under these three movements. But for some special type of machining (turbine impeller) or machining, a critical surface needed some more attention. Sometimes we […]

5 08, 2019

PMMA

By |2019-08-05T17:11:14+08:00August 5th, 2019|Categories: acrylic injection molding, acrylic injection moulding, PMMA injection, PMMA injection moulding, PMMA molded parts, PMMA plastic moulding|Tags: , , , , , , , , , |Comments Off on PMMA

Injection Molding Technology of Polymethyl Methacrylate (PMMA)

PMMA is commonly known as polymethyl methacrylate, acrylic and so on and its chemical name is polymethyl methacrylate. PMMA has some defects such as low surface hardness, easy to snag, low impact resistance, poor molding liquidity performance, so PMMA’s modification appears one after another such as copolymerization between methyl methacrylate and styrene and butadiene, a blend of PMMA and PC, etc. 372 PMMA is the copolymer of methyl methacrylate and styrene. If you add a small amount of nitrile rubber (about 50%) in the 372 PMMA, it will become 373 PMMA.PMMA injection molding parts

The fluidity of PMMA is poorer than […]

3 08, 2019

How To Convert machined parts to molded parts

By |2019-08-01T13:25:53+08:00August 3rd, 2019|Categories: plastic components|Tags: , |Comments Off on How To Convert machined parts to molded parts

Millions of plastic components are machined.  If the annual volume is high enough, converting it to a molded part could be of advantage. With machining, you pay for the full rod or sheet and then machine a fair amount of the plastic onto the floor as waste. Extruded sheet and rod is usually more expensive per pound than injection molded pellets.  For example, if molded pellets are $5.00/lb. extruded rod of the same material will cost around $10.00/lb.  Then, you have the cost of machining on top.

Machined components don’t just have to be plastic to become an injection molded part.  Many parts International Plastics produces were originally machined metal parts.  Be it brass bushings, aluminum, zinc castings, machined […]

1 08, 2019

Custom Silicone Rubber Products

By |2019-08-01T13:35:09+08:00August 1st, 2019|Categories: Custom Silicone Rubber Products, liquid silicone injection molding, Rubber molding, rubber molding china, rubber molding parts, Silicone injection molding, Silicone molding, silicone molding parts|Tags: , , |Comments Off on Custom Silicone Rubber Products

Our company produces all kinds of specifications of different grades of vulcanized pressed and liquid silicone injection molding rubber products, such as silica gel covers, infant pacifiers, silicon rubber key-presses, slip-preventing pads, quakeproof pads, sealing ring and other series products as well as silicone rubber molds.

Custom Silicone Rubber ProductsVulcanized silicone rubber products have the following characteristics:

(1) the property resistant to high and low temperature: with long-term use at 200 ℃and flexibility at -60 ℃;
(2) Electrical insulation property: silicone rubber affords excellent dielectric property which is much higher than the general organic especially under high temperature with dielectric strength almost independent of temperature in the range of 20-200 […]