Blog about buying plastic mold, plastic injection molding parts from China Plastic Injection mold and molding companies, advantages and disadvantages buying plastic molds and plastic molding parts from China.

27 12, 2019

Thin Wall Injection Molding

By |2019-12-27T22:57:18+08:00December 27th, 2019|Categories: molds, multiple cavity molds, thin-wall injection mold, thin-wall injection molding, thin-wall molding, thin-wall plastic mold|Tags: , , , , , |Comments Off on Thin Wall Injection Molding

Sincere tech offers thin-wall injection mold/molding manufacturing, our company has been made some thin wall multiple cavity molds, such as Cosmetics injection molding twenty-four cavity mold, eight-six multiple cavity molds, etc. if you have a project that needs thin wall plastic mold/molding services, you have come to the right place, we will solve your issue here and make your project 100% successful.

Thin-wall injection molding rising in status as material costs continue to rise and delivery lead times as squeezed. Thin wall plastic molding provides the chance to decrease material part cost and to raise production output via quicker cycle times.

thin wall molding thin wall molding

This […]

18 12, 2019

OEM Contract Manufacturing China

By |2020-09-22T22:49:35+08:00December 18th, 2019|Categories: China contract manufacturer, China mold, Contract Manufacturing, Contract Manufacturing China, Contract Manufacturing in China, manufacturing, molds, OEM contract manufacturing, OEM Manufacturing in China, plastic injection mold, plastic injection molding|Tags: , , , , , , , , , , , , |Comments Off on OEM Contract Manufacturing China

We offer OEM contract manufacturing services, product assembly, PC board design, electronic components assembly, contract assembly services from China, we assembly your metal parts, aluminum parts, plastic parts, electronic components, PC board, battery component all in one service. if you are looking for OEM contract companies from China, contact us.

What Is Contract Manufacturing? OEM Contract Service

Contract manufacturing is characterized as redistributing or contracting out the manufacturing services of a business to an outer firm, business, or outsider seller. Manufacturing services incorporate manufacturing the item to required particulars, building the item, and structuring and manufacturing the item.

Plastic Injection Molding Contract Manufacturing In China

plastic injection molding is the most widely recognized procedure to acquire plastic parts. This […]

16 10, 2019

Micro Injection Molding

By |2019-10-16T19:51:39+08:00October 16th, 2019|Categories: micro injection molding, micro injection moulding, micro molding, micro molding parts, micro moulding, micro plastic molding, micro plastic moulding, molds|Tags: , , , , , , |Comments Off on Micro Injection Molding

What is Micro Injection Molding

Micro Injection molding ( micro-molding) is small & high-precision thermoplastic injection molding parts and components with tight tolerances ( 0.001mm to 0.005mm).  this type of micro injection molding parts is used in the medical industry, automotive, aerospace, and electronic industry, the microinjection mold is as same as standard injection mold that has sliders, lifter, but the precision and the tolerance are totally different.

Micro injection molding or Micro injection moulding that is the same meanings, No matter how you spell it, the micro-molding size is very small, from 2mm to 20mm, the most important thing to make good quality of micro molding parts is the tolerance and injection molding machine, must […]

2 09, 2019

PE Injection Molding Technology

By |2019-08-30T21:46:45+08:00September 2nd, 2019|Categories: HDPE injection molding, molds, PE Injection Molding, PE Injection Molding Technology, Polyethylene Plastic Molding|Tags: , , , |Comments Off on PE Injection Molding Technology

Polyethylene is PE for short, which has the properties of softness, non-toxic, cheap, and easy to process. It is a kind of typical crystallographic polymer.

PE-LD has the lightest density in its own kind and is easy to ventilate and soak. It has good dielectric properties and chemical resistance properties, softness, elongation, impact force resistance. Its translucency is better than the middle and low LDPE but it has the bad performance of mechanical properties, which can apply for softness injection molding and extrusion molding. PE plastic mold molding

PE-HD also has good dielectric properties, abrasive resistance, and water tightness. In terms of chemical medicine resistance, HDPE is better […]

31 08, 2019

POM Injection Molding Technology

By |2019-08-23T16:42:46+08:00August 31st, 2019|Categories: molds, POM, POM Injection Molding, POM Injection Molding Technology|Tags: , , |Comments Off on POM Injection Molding Technology

POM (also called acetal) is polymerized by formaldehyde and other raw materials, etc. POM-H (Polyoxymethylene homopolymer), POM-K(Polyoxymethylene copolymer) are thermoplastic engineering plastic with high density and crystallinity. It has good physical, mechanical and chemical properties, especially excellent rub resistance.

POM Injection Molding Technology is a crystalline plastic with an obvious melting point. Once it reaches the melting point, the melt viscosity will rapidly decrease. When the temperature exceeds a certain limit or the melt is heated too long, it will cause decomposition. Copper is POM’s degradation catalyst, the areas contacting with POM melt should avoid the use of copper or copper materials.POM INJECTION MOLDING

  1. Processing of […]
30 08, 2019

Mold Cooling Channel Manufacturing

By |2019-08-30T21:21:51+08:00August 30th, 2019|Categories: Mold Cooling Channel Manufacturing, molds|Tags: , |Comments Off on Mold Cooling Channel Manufacturing

This manufacturing tip is for plastic injection molds that have round inserts with o-rings and cooling channel on the outside.

When we put the insert with the o-ring into the hole in the insert sometimes we damages the o-ring, because the edge in the cooling hole is too sharp and the edge cuts away a part of the o-ring and damaged the o-ring, to avoid this issue we need to add small chamfer to the edge of the cooling hole in the insert plate, when the o-ring comes to the cooling hole the o-ring will not be damaged since the edge area is smoothly.

Below red cycle area, the edge is too sharp, it will damage the […]

28 08, 2019

Blow Molding Process

By |2019-12-23T22:56:45+08:00August 28th, 2019|Categories: Blow Molding Process, Blowing Molding, bow molded products, China mold, Inject2blow, injection blow molding, molds|Tags: , , , , , |Comments Off on Blow Molding Process

Blow molding is a 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 molding 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 […]

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 […]

23 08, 2019

PET Injection Molding

By |2019-08-19T15:54:06+08:00August 23rd, 2019|Categories: molds, PET injection molding, PET plastic molding, PET plastic moulding|Tags: , , , |Comments Off on PET Injection Molding

The injection techniques of poly terephthalic acid alcohol ester (PET)

The chemical name of PET is poly terephthalic acid alcohol ester, also called polyester. At present, GF-PET is used by most clients. PET injection molding parts are mostly used in the bottle preform products

PET has a good rheological property in molten condition and pressure has more effects on viscosity than temperature does. Therefore, we change the rheological property mainly from the pressure.

Plastic drying

Due to PET macromolecule contains an aliphatic base, it has certain hydrophilicity. The aggregate is very sensitive to water when it’s at a high temperature. When the water content exceeds the limit, the molecular weight of the PET will drop during the processing, […]

22 08, 2019

Die Casting Mold Design Guideline

By |2019-08-21T20:16:54+08:00August 22nd, 2019|Categories: Die Casting Mold, Die Casting Mold Design Guidelines, molds|Tags: , |Comments Off on Die Casting Mold Design Guideline

In order to be able to think in the same way within SinereTech, and to be able to use dimensions that are suitable for all applications we have created the following guidelines. Those guidelines will be used by the calculation engineers as well as a base for our designers in case of any die casting mold project.

  1. Injection gate and overall layout.
    1. Generally, the injection gate will be placed along the longest side of the part and the injection gate cylinder will be on the closest distance to that side (runner will normally not go around the cavity like a banana).
    2. If sliders are used or if other factors may influence the placement of […]
Go to Top