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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 […]

Analysis on the origin and development of injection mold processing

Since modern times, all kinds of tools and products, ranging from screws to machinery, have filled people’s daily life, and these products are closely related to mold processing. Mold, as the name suggests, is a special tool used in various presses and installed on presses, and then metal or non-metal materials are made into parts or products of the required shape through pressure. Especially since the new century, plastic products, as a great invention, have been widely used by […]

What is the reason for the wide application of injection molding

In our daily life, we need to use injection molding technology for toys, bottles, containers and other materials we buy for our children. More products we don’t know are manufactured and processed by injection molding industry. Why do so many products use injection molding? It has several advantages.
1. suitable for producing precision products
One of the main advantages of plastic injection molding technology is that it can easily design a complex plastic precision parts and components through teaching. Compared with […]

Key points of molding dimension control for injection mold products

With the rapid development of mold industry in recent years, and the continuous expansion and progress of the application scope of new technologies and processes, there has been a qualitative change from the accumulation of traditional experience to the application of software development.
The wide application of CAD, cam and CAE has opened up a space for the rise of the geometric dimension control technology of our molds and mold products. Due to the great difference in the market demand […]

Which mistakes are easy to make in the injection mold process?

In fact, injection mold engineering is often used to make plastic products. It also uses a technology to make the structure and size of plastic into a workpiece, so the structure and quality of injection molding can directly affect the quality of finished products. What are the problems that are easy to occur in the work of injection mold? Let’s have a look.
1. difficult sprue stripping
In the injection molding process, the grid electrode of the grid electrode is glued […]