Low Volume Manufacturing Service | China Plastic Injection Molding Companies With Tooling And Injection Moulding Die Makers

17 Sep

Why does plastic injection mold burst during operation?

In recent years, The development of domestic plastic injection mold is very fast, and the technology has also been greatly improved. However, there is still a certain gap between the domestic and foreign plastic injection mold manufacturing level. In the process of plastic injection mold operation, there will still be some failures. For example, during the operation of plastic injection mold, the mold will burst, which is a very serious mold table defect What are the causes of the […]

18 Aug

What causes short shot of plastic mold in injection molding?

Short shot refers to the phenomenon that the cavity of plastic mold is not completely filled due to the insufficient fluidity of plastic, resulting in incomplete plastic products. The main reason is improper injection pressure and speed (including excessive pressure loss caused by resistance), which is mainly affected by the following aspects:

1、 Injection molding machine
(1) Insufficient injection molding capacity – this is caused by the high capacity of the injection molding machine, which may also be caused by insufficient […]

28 Jul

Customized processing of plastic injection mold for JasonMould automobile

The automobile industry has developed rapidly in the past ten years, and more and more new products have entered the market, such as new energy vehicles. A large number of automatic parts are made of plastic. As a new material of automobile parts, plastic parts can reduce the weight of automobile and save energy, so they are widely used in automobile industry. This means that a large number of plastic injection molds are needed to produce the required plastic […]

02 Mar

How to finish the mold processing order on time

How to ensure that the mold processing orders can be completed successfully?

Size

Each customer if wants to choose, to ensure their own mould processing orders can be smoothly in a short period of time, it is best to also will be able to determine the size of each enterprise, that is to say as far as possible the choice of more large-scale enterprises, because of massive basically in this aspect of an enterprise is not likely to be some delay, […]

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. […]

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 […]