Plastic Injection Tooling

What factors should injection mold materials have

Do you know the basic principles for selecting materials for injection mold? If you still don’t know, let’s hurry up and have a look with us.
1. Wear resistance
During the plastic deformation of the blank in the die cavity, the blank flows and slides along the surface of the die cavity, causing friction between the surface of the die cavity and the blank. Therefore, the wear resistance of materials is one of the most basic and important properties of dies.
The […]

In which period is it better to customize the injection mold

When is it better to start customizing injection molds? What preparations should be made in advance? DJ Molding believes that we should try our best to do a good job in the preliminary work of product patent application at each product exhibition in the first three months.
In the highly competitive business environment, the protection of intellectual property rights has reached an inviolable level. Otherwise, no one will be willing to invest heavily in scientific research and innovative products, because […]

How to maintain the injection mold

Professionals in the injection mold industry know that manufacturing a good mold is not only a good machine, but also requires developing a high-quality mold and skilled producers, and also needs to know how to maintain it.
Doing a good job in the maintenance of injection mold can not only extend the life of mold, improve production efficiency and reduce manufacturing costs through manufacturing and daily maintenance.
A simple and effective maintenance method: clean and polish the mold meat in the […]

Design scheme and heat treatment of injection mold

At present, there are more and more plastic products, so there are more and more injection mold enterprises. However, the quality of molds produced by each enterprise is also different. Some people have doubts. Why is the quality of the same technology and materials so different? Projuni injection mold manufacturers will tell you about the reasons here.
In order to avoid similar problems, first of all, after the injection molding product design scheme is determined, it is necessary to fully […]

Attention must be paid to these points during injection molding

Recently, many friends asked what should be paid attention to in the injection mold. Today, DJ Molding is here to show you what should be paid attention to in the injection mold!
1. The shrinkage coefficient of each material is different, and the injection mold needs a reasonable shrinkage.
2. The injection mold needs to be rigid enough, otherwise it will be deformed during clamping and pressure maintaining, causing “flash”.
3. If the product is ejected while opening the mold, the ejector […]

Criteria to measure whether the die processing is qualified

For manufacturers specializing in mold processing, whether the finished mold products processed are standard and qualified will directly affect the production quality of subsequent products. Therefore, for some enterprises that need to use molds for industrial production, when purchasing molds, it is important to pay attention to whether they can meet the production quality and the subsequent application needs.
When selecting a mold, we can measure whether a mold is up to standard from the following aspects
1. Accuracy. No matter […]

How will injection molding be affected

Mold designers must have rich experience in design and injection molding, and must consider the relationship between these factors and injection molding conditions and their apparent factors, such as injection pressure, cavity pressure and filling speed, injection melt temperature and mold temperature, mold structure, gate type and distribution, and discuss the influence of gate area, wall thickness, filler content in plastic, plastic crystallinity and orientation. The influence of the above factors also varies with plastic materials or other molding […]

Learn about precision parts processing

There is a set of processes for the division and sequence of precision parts processing. In this article, we will introduce the content of precision parts processing.
(1) The connecting rod itself has low stiffness and is easy to deform under external force. The connecting rod is a die forging with large working allowance for machining holes, which is easy to generate residual stress in the cutting process. Therefore, in the process planning, the main surface roughness and finishing processes […]

Reminder about problems of injection molding containers

Injection molding is to inject molten plastic into a closed mold with low temperature through a nozzle under high pressure. Thermoplastic and thermosetting plastics can be molded by injection molding, and can be used to make various box type packaging containers, such as various turnover boxes and small boxes. For box type packaging containers, the following aspects shall be considered in the structural design:
1、 Wall thickness of container
1. Thickness: the wall thickness of the container is mainly determined by […]

Tips on filling of injection molding

Injection molding is a step that many molds need to go through. This step is divided into four stages, and filling is the first stage. This does not mean that filling is more important in the injection molding process. No one can be separated from the four stages. The following is mainly about filling.
First of all, we need to understand that filling is the first step of injection molding. It needs to work at the beginning of mold closure. […]