Plastic Injection Tooling

Many factors affect the quality of finished products in the mold forming stage

In the process of injection molding, whether the finished product quality and accuracy of the mold meet the requirements is the top priority. The formed mold should meet the requirements of size, accuracy and shape, but the injection molding process will be inconsistent due to the difference between heat and shrinkage, so this process should be handled carefully.
Improper injection mold or design will directly affect the shrinkage of plastics, because the size of plastic products plus the estimated size […]

There are many dents when processing parts. How to prevent them

Generally, various errors will occur in the processing of precision parts or precision molds. Shrinkage and dents are very common phenomena. If dents always appear in the processing of parts or molds, we should pay attention to these. The following precision parts processing manufacturers will tell you how to prevent dents during processing.
1、 Dents in precision parts processing
1. When machining precision parts, if the cooling time is short, the parts will also be deformed;
2. During precision mold processing, if […]

Filling knowledge 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. Here is not to say that filling is more important in the injection molding process. No one can leave who in 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 […]

A brief talk on the idea of mold processing

Huizhou Dj molding has been focusing on mold processing and mold making for many years. It is a leader in the mold processing industry. We have advanced equipment, unique processing technology and support of several technicians. We have strong strength. We welcome major customers to consult and rush to buy.
What is the development direction of mold processing?
What are the right ideas?
Do small and medium-sized mold factories need a management system?
What is the automation of mold manufacturing?
Are these problems perplexing […]

Why make molds like this?

At present, many equipment need a mold. Without a mold, it will be very troublesome and can not achieve the desired effect. There are more and more mold manufacturers. Each personnel will have their own shortcomings and shortcomings in the design process. The methods summarized by technicians with 20 years of experience are as follows:
1、 Accept the assignment
The task list of plastic molded parts is usually proposed by the part designer, as follows:
1. Some approved drawings shall be marked […]

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 not the same. Some people have questions. Why is the quality of the same technology and materials very different? Purongni injection mold manufacturer will tell you the reasons here.
In order to avoid similar problems, first of all, after the design scheme of injection molding products is determined, it is necessary […]

These six requirements for the purchase of plastic molds can not be ignored

Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion, injection, blow molding and low foaming molding. A series of plastic parts with different shapes and sizes can be processed by the coordinated change of punch, die and auxiliary forming system. In order to meet the needs of molded parts, we need to pay attention to some matters when selecting plastic molds, and put forward corresponding requirements. Now choose a more suitable plastic mold to […]

Three principles of mold material selection

(1) The mold meets the requirements of working conditions
1. Wear resistance
When the blank is plastically denatured in the mold cavity, it flows and slides along the cavity surface, resulting in severe friction between the cavity surface and the blank, resulting in the failure of the mold due to wear. Therefore, the wear resistance of materials is one of the most basic and important properties of molds.
Hardness is the main factor affecting wear resistance. In general, the higher the hardness […]

Temperature control of plastic mold processing and injection molding

Temperature control plays a very important role in plastic mold processing and injection molding. It can decide whether the product is good or bad. In a big way, even if you make it to the customer, you will lose the customer’s trust in you and cause losses to the company. In a small way, it doesn’t matter. It’s a big deal to redo. Don’t do this, but you should remember that these are actually a waste of the company’s […]

Analysis on strength performance, thermal fatigue resistance and bite resistance of mold steel

1. Strength performance
(1) Hardness
Hardness is the main technical index of mold steel. In order to keep its shape and size unchanged under the action of high stress, the die must have high enough hardness. The hardness of cold working mold steel is generally maintained at about HRC60 at room temperature. According to its working conditions, hot working mold steel is generally required to be maintained in the range of hrc40 ~ 55.
For the same steel, within a certain range […]