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Standards for mirror polishing of mold, methods and precautions for mold polishing

Polishing is a very important process in the process of making plastic molds. Generally, it is a process of polishing the mold cavity surface with oilstone, sandpaper, polishing paste, etc., so that the working surface of the mold can be as bright as a mirror.
Mold polishing can make the surface of the product smooth and beautiful. In addition, it can make the product easier to demould on the mold.
The standards for mirror polishing of molds are divided into four […]

What are the bases for evaluating the economic and technical indicators of molds

The level of mold technology is ultimately reflected in mold manufacturing cycle, mold service life, mold accuracy and stiffness, mold manufacturing cost, mold standardization and other aspects, which are also the basis for evaluating mold economic and technical indicators.
Mold manufacturing cycle: mold manufacturing cycle reflects the production technology level and organization management level of mold enterprises. Try to shorten the mold manufacturing cycle when manufacturing the mold. At present, in order to shorten the mold manufacturing cycle, the method […]

Regulations on independent inspection of injection molding workshop

1、 Purpose
To strengthen process quality control, improve product quality, improve production efficiency, effectively control the number of rework, and supervise the self inspection of operators.
2、 Scope of application
All injection workshop operators.
3、 Content
1. Before continuous production, the operator must send the first piece of quality inspection for confirmation, and the first piece can be produced only after it is qualified and sealed. The label of the sealed sample must have the article number, name, sample sealing person and sample sealing […]

How to solve the problem of flow marks on the surface of injection molded products?

Flow mark is a common appearance defect of injection molded products. It will have a great impact on production, so how to solve it? Now let’s talk about how to solve the problem of flow marks on the surface of injection molded products?
Fault analysis and troubleshooting
1. The poor flow of molten material leads to the annual ring shaped ripple flow mark centered on the gate on the surface of plastic parts. It can be adopted to increase the temperature […]

Finishing process of mold manufacturing

A mold is composed of many parts. The quality of the parts directly affects the quality of the mold, and the final quality of the parts is guaranteed by finishing. Therefore, it is important to control the finishing. In most domestic mold manufacturing enterprises, the methods used in the finishing stage are generally grinding, electric machining and fitter treatment.
At this stage, it is necessary to control many technical parameters such as part deformation, internal stress, shape tolerance and dimensional […]

Several characteristics of precision mold processing

The most important thing in precision mold processing is precision. Therefore, the size of the workpiece has high requirements, and the error is about +-0.005. In addition, many precision molds cannot have a slope during production. It is precisely because of the operability and controllability of processing that the whole process can be carried out smoothly. Here are some features of precision mold processing.
1. Abrasion resistance
When plastic deformation occurs in the female mold of the injection mold, the raw […]

Injection mold is different from other processing technologies

Injection mold is a technical work, which is different from other processing technologies. When using injection technology, different materials should be selected according to different molds and different injection molding processes should be used. This is the difference of injection mold. There are different regulations on raw materials, characteristics and molds.
1. with the emergence of high-speed forming machinery and equipment, the production speed of plastic products has accelerated. As the injection mold temperature is usually between 165-300 ° C, […]

These three processing technologies should be considered for injection mold

In the process of injection mold processing, the complete professional technology is an indispensable project, which involves the transformation of plastics into products that retain the original system performance. The important production process design conditions of injection molding are the temperature, pressure and corresponding different effects that affect the plasticizing flow and cooling. Here, our analysis can be roughly divided into three aspects: first, temperature and control, second, pressure management and control, and third, forming cycle. There are 3 […]

How much do you know about mold design

1. Batch size test, mold production hours, can be made into wood or resin. However, if a die is used to obtain data such as shrinkage, dimensional stability and cycle time, a single cavity die should be used for experiment and can be used in production. Molds are generally made of gypsum, copper, aluminum or aluminum steel alloy, and aluminum resin is rarely used.
2. Geometric design: dimensional stability and surface quality shall be considered during design.
3. Dimensional stability. In […]

What should be done to make the injection mold better

I believe everyone should know something about injection mold. The main content of this article is the polishing of injection mold, why to polish and what should be paid attention to in polishing.
Polishing injection mold has two main purposes; One is to increase the smoothness of the mold to make the surface of the products produced by the mold smooth, beautiful and beautiful. The other is that we can improve the mold, which is easy to lead to demoulding, […]