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13 09, 2019

Important Things About Plastic Injection Molding Machine

By |2019-09-10T15:58:32+08:00September 13th, 2019|Categories: china injection molding companies, China mold, china mold company, Chinese mold, Chinese mold company, custom injection molding service, Custom Injection Moulding, custom plastic mold, custom plastic mold making, Injection Mold Maker|Tags: , , , , |Comments Off on Important Things About Plastic Injection Molding Machine

Since the injection moulding process was invented, the plastic industry and the big business opportunity of injection molding have become a commercial enterprise which is potentially thousands to millions of US dollars. Injection molding has given an important role in the development of the economy in the USA. This allows industrial and consumer goods to be important for many industries, with affordable and durable prices.

Injection Molding Machine Function

This machine can be classified into three categories, namely: Multipurpose machine, precision machine/narrow tolerance and high-speed thin-wall machine. These three types require assistive equipment to function. These supporting equipment include dryers (resins), handling equipment, granulators, temperature control and mold cooling, handling equipment and parts extraction robots.

28 08, 2019

Blow Molding Process

By |2019-08-23T16:15:52+08:00August 28th, 2019|Categories: Blow Molding Process, Blowing Molding, bow molded products, China mold, Inject2blow, injection blow molding|Tags: , , , , |Comments Off on Blow Molding Process

Blow molding is kind of molding process of placing the molten preform into the blow mold, injecting the compressed air, and the performance will be stick to the mold cavity wall, after cooling and mold release we got the blow molded products we want. Blow molding can be applied for the production of plastic containers as bottles, pots, barrels, and daily uses, children’s toys, etc.

The major materials for blow moldings are Polyethylene, PVC, polystyrene, linear resin, polycarbonate… The consumption of HDPE takes the first place in blow molding, it is widely used in food, chemical and disposing of liquid packaging. PVC container is more popular in cosmetics and detergent packaging for its good transparency […]

25 08, 2019

Polystyrene PS Injection Molding

By |2019-08-21T16:02:00+08:00August 25th, 2019|Categories: China mold, molds, PS injection moulding, PS plastic moulding|Tags: , , , , , , |Comments Off on Polystyrene PS Injection Molding

Polystyrene (PS, GPS) is commonly known as ordinary styrene hard plastic which is transparent and belongs to translucent plastic (with greater density than water, fragility).

The properties of PS include good optical performance 88%-92%, excellent electrical performance, easily molding and processing and good colorability. Its disadvantages include fragility, low temperature of heat-resisting, high requirements for processing and molding conditions (distinct Aging and great sensitivity to heat) weak acid resistance, easy to burn. If there is no fire source and it will burn continually with yellow color, thick black charcoal, blistering, and monosomy.

PS injection molding

Viscosity is sensitive to the velocity of shear. With the increase of pressure, melt viscosity […]

19 08, 2019

Manufacturing core and cavity insert Guideline

By |2019-08-19T16:05:31+08:00August 19th, 2019|Categories: cavity insert, China mold, core insert, molds|Tags: , , |Comments Off on Manufacturing core and cavity insert Guideline

When we manufacture the core and cavity inserts during the mold manufacturing, there are some dimensions that we need to manufacture with some tolerances so that it fits well in the pocket of the insert plate or cavity/core.

And this will save some work when we will fit the cavity & core, high tolerance, and good manufacturing technology will save lots of time for the moldmaster, below are some manufacturing core and cavity insert Guideline that we need to pay attention to make high quality mold.

When we make the corner radius In the manual milling machine, make a 0.2mm big step there, after hardening, we don’t have to grind on the corner when we fit […]

28 07, 2019

Plastic Moulding

By |2019-08-19T15:54:18+08:00July 28th, 2019|Categories: China mold, china mold company, china mold maker, China mold supplier, Chinese mold, Chinese mold company, Chinese molding company, injection molding, Injection Molding China, mold gate, molds, plastic mold, plastic molding, Plastic Moulding|Tags: , , , , , , |Comments Off on Plastic Moulding

plastic mouldingPlastic moulding is the plastic work through the Injection moulding machine, The melted plastic will automatically molten after erupting out in all of the plastic moulding methods, injection moulding has been the most widely used. The method comprises the following steps: getting the thermoplastic plastic or the thermosetting plastic imported into the heating cylinder of the injection moulding machine, and when it is completely melted, it will produce heat and frictional heat by the pressure of the plunger or the screw, and is injected into the mould cavity of the closed mould, after curing, and then open the mould and take out the finished product.


Plastic […]

21 07, 2019

Cosmetics Molding Parts And Personal Care Plastic Products

By |2019-07-16T22:47:45+08:00July 21st, 2019|Categories: China mold, compact molding product, Plastic deodorant containers|Tags: , , , , , , , |Comments Off on Cosmetics Molding Parts And Personal Care Plastic Products

Sincere Tech plastic molding company has the expertise to provide a single-source solution for the molds and the plastic injection molding needs for a wide variety of industries. We provide services for a variety of specialty manufacturers, including cosmetics molds/molding parts and other personal care molded products.

Our team, provides the parts design, mold design, mold making, engineers and plastic injection molding service to complete any project to your industry’s specifications and requirements.compact molding product

Cosmetics molding parts and Personal Care Plastic Product packaging

Hundreds of new cosmetics products and personal care products are introduced every year. And of course, every new product requires new plastic cosmetics packaging. Sincere […]

18 07, 2019

Plastic Product Design Service

By |2019-07-05T22:58:30+08:00July 18th, 2019|Categories: China mold, Custom Plastic injection moulding service, custom plastic mold, Custom Plastic Molding, Injection Mold China, injection molding, molds, plastic injection mold, plastic injection molded parts, Plastic Injection Molder, Plastic Injection Molding Companies, Plastic Product Design Service|Tags: |Comments Off on Plastic Product Design Service

Plastic product design service according to your sketch or samples, Change Draft Directions, Initial Design Consultation, Improve Efficiency, Change Draft Directions, Eliminate Undercut, Eliminate Sink Marks

SINCERE TECH can produce a product design from your concept, sketch, samples or modify your product designs for required changes on most plastic parts.

SINCERE TECH, one of the most trusted China plastic mold/molding manufacturing companies in mold design, injection molding service, injection mold making, and engineering, will consult on the initial design, or design enhancements to help improve efficiency in the  manufacturing process, including:Plastic Product Design Service

  • Changing draft directions
  • Design concessions for radii and step-throughs
  • Undercut elimination
  • Coring to eliminate sink […]
12 07, 2019

Plastic Mold and Mold Maintenance

By |2019-07-16T22:49:35+08:00July 12th, 2019|Categories: China mold, mold gate, molds, plastic injection mold, plastic moldmaker, two shot mold, Two shot molds|Tags: , , , , , , , , |Comments Off on Plastic Mold and Mold Maintenance

Mould, indispensable in modern industry development and technological level improvement, is one kind of widely-used process equipment during mid-period of industrial production. According to statistics, moulding accounts for 75% of rough machining of industrial parts and 50% of precision machining. Mould can be classified as cold-punching mold, injection mold (or plastic injection mold), die casting mold, rubber mold and so on.plastic mold

1. Introduction of Injection Mould

1.1 Range of Application:

Injection mould is suitable for thermoplastic like ABS, PP, PC, POM, etc. while rubber mould is fit for thermosetting plastic, such as phenolic plastic, epoxy plastic and so on.

1.1.1 Classification of Injection Mould:

By structure: two-plate mould, three-plate mould

By […]

9 07, 2019

The best Cooling Channels for the plastic mold

By |2019-07-16T22:51:53+08:00July 9th, 2019|Categories: China mold, cooling channels|Tags: , , |Comments Off on The best Cooling Channels for the plastic mold

A single fundamental rule of injection molding is that hot material enters the mould, where it cools rapidly by cooling channels in the mold to a heat at which it stiffens enough to keep the pattern of them. The heat of the plastic mold tooling is for that reason important as it governs a portion of the general molding cycle. While the melt runs more freely with a hot injection mould tools, a better cool period is required in advance of the solidified molding can be ejected. Alternatively, while the melt stiffens quickly in a cold tool, it might not exactly achieve the extremities of the cavity. A compromise among the 2 opposites […]

8 07, 2019

Polycarbonate Injection Moulding

By |2019-07-16T22:49:47+08:00July 8th, 2019|Categories: China mold, molds, Polycarbonate Injection Moulding, polyurethane molding|Tags: , , , , , |Comments Off on Polycarbonate Injection Moulding

Sincere Tech is an injection mold maker in China, offer custom plastic mould & injection moulding products, not only custom Polycarbonate molds, PMMA, ABS, but also any custom plastic mold & molded parts.

If you have Polycarbonate molding project or any other custom plastic molding requirement, you are welcome to send us your requirement for quotation, we will quote you the best price, save you up to 40% of your mold cost.

What is a Polycarbonate (PC) Injection Moulding?

Polycarbonates are an amorphous thermoplastic. These polymers allow transmission of light; like as in a glass. An important feature is that they can be heated to their melting point, cooled and heated again without degrading itself. As […]