Company News | China Plastic Injection Molding Companies With Tooling And Injection Moulding Die Makers

23 Mar

How to make high quality injection parts

Although in the plastic injection mold technology, to produce high gloss, high aesthetic requirements, not subject to the stress generated in the molding process, with high stability of parts, as well as reliable filling of thin-walled materials, are facing great challenges. However, hot / cold forming is being rapidly accepted in automotive interiors and many other consumer applications requiring high surface aesthetics. Let’s take a look at the production process plan of high-quality injection parts with high gloss;
Change of […]

19 Feb

The advantages of spray painting on the surface of plastic parts

The surface of the plastic part can be sprayed to ensure the brightness of the product. Because plastic is so hard to embody, plastic parts look darker, and even darker if they are covered in leather. Therefore, in the pursuit of a beautiful surface, Some customers requires to spray a layer of painting on the surface of plastic parts. This will ensure the brightness of the product.
Spraying the surface of plastic parts can reduce the scrap rate of parts. […]

17 Feb

Factors affecting the number of cavities in Plastic Injection Molds

The cavities in Plastic injection mold is not the more the better, also not all molds can be done with 4 cavities or 8 cavities. So what are the factors affecting the numbers? Let’s have a look below:

Relationship between the product size and equipment.

When the part belongs to large or medium size, generally speaking, single cavity is used. On the one hand, it is necessary to consider the fluidity of plastic material filling mold when injection molding, so as […]

17 Feb

To standardize the management of mold factory

(1) Standardized management of product and drawing data
Effective management can ensure the comprehensiveness and consistency of data, and make the data share and query effectively. To prevent problems caused by data inconsistency and drawing non-standard from being found and corrected in time, resulting in rework and maintenance of the mold, increasing the manufacturing cost of the mold, and affecting the delivery time
(2) Establish the company’s own quality inspection mold department, standardize various inspection methods. Get rid of fluke. Strengthen […]

13 Feb

Forming characteristics of ABS in plastic injection molding

Today, we would like to introduce the forming characteristics of ABS in plastic injection molding.

1.ABS is easy to absorb water, and should be dried before forming. Plastic parts with high surface gloss requirements should be preheated and dried for a long time

Medium liquidity, about 0.04mm overflow edge.

The wall thickness and melting temperature have little effect on shrinkage, and the size of plastic parts has high precision.

4.ABS has low specific heat capacity, high plasticization efficiency and fast solidification, so the […]

11 Feb

How to prevent stripe defects in precision injection molding?

As we all know, the stripe defect in mold is a very serious matter, it will directly affect the accuracy of injection molding, and will also lead to product scrap, so we must pay attention to. So, how can we avoid this defect?
Proper design, careful processing, reasonable mold repair and timely nitriding are the key measures to prevent the occurrence of stripe defects in precision injection molding.
It should be processed in strict accordance with the requirements of the drawing, […]

14 Jan

What will be caused when injection mold testing in many times?

The design of the injection mold was not fully collectively reviewed, and the structure of the injection mold was unreasonable, which caused the injection mold to undergo multiple improvements after the test, which made the injection mold cost exceed the budget.
If it can be solved after several improvements, it is relatively fortunate. There are many cases that are unsatisfactory, and even the injection molds have to be scrapped and reworked. This cost cannot be controlled.
There are also cases where […]

08 Jan

Why plastic parts have deformation when processing

In order to ensure the normal processing of plastic parts, operators need to understand the cause of the abnormal appearance in this process, the better to avoid the abnormal appearance during processing. Below, JasonMould share you the causes of deformation in processing:

During the process of molding, the surplus material is spilled into the gap between the mold and the mold surface and retained on the plastic part. A kind of linear trace on the surface of plastic parts, is […]

03 Jan

How to solve the surface sag in 2K mold

The basic reason for surface sag: from the perspective of plastics, when the plastic cools and shrink, insufficient filling will lead to product surface sag or internal cavity.

The causes and solutions of defects are different depending on the location of sag.

When the sag occurs at the final cooling position of the thick-walled product, or at a distance from the sprue:

Cause analysis: The typical thick wall and the surface sag or hole far from the sprue are usually due to […]

23 Dec

Causes and solutions for swelling and bubbling of injection molding parts

Some plastic parts after demoulding, have swelling or bubbling on the back of metal insert or in the extra thick parts. This is due to the expansion of the released gas under the action of internal pressure on the plastic which has not been completely cooled and hardened. JasonMould works with you for details.

Solutions:

Effective cooling. Reduce mold temperature, prolong tooling time, reduce drying and processing temperature.

Reduce the filling speed, reduce the forming cycle and reduce the flow resistance.

Increase the […]