Plastic injection mould

Effect of Five Systems of Injection Molding Machine

Injection system

 
Injection system is one of the main components of injection molding machine, generally there are three main methods: plunger, screw, screw pre-plastic plunger injection. Now widely used is screw type. The effect is that in a cycle of the injection machine, a certain amount of plastic can be heated and plasticized within a specified time, and the molten plastic can be injected into the mold cavity through a screw under a certain pressure and speed. After the injection, […]

How to Distinguish Mold Grades? Take A Look at The Five Major American Mold Standards

The price of the export mold will be more expensive, but it is expensive because the standard is different. The American Plastics Industry Association (SPIAN-102-78) divides the molds into five categories. Each of these five types of molds has its own requirements, and this classification of molds can only be applied to molds with 400 tons or less of injection molding machines.
mold making
101 type
 
The cycle can be up to 1 million times for high production. The best mold material is […]

What Are The Main Reasons Affect Mold Failure?

Failure often occurs in the use of molds, from the actual point of view, we focus on several failure modes. There are five main types:
 

Failure of plastic deformation

The main reason is that the strength level of the mold material is not high; or the heat treatment process is not correct, not to achieve the best strength and toughness of steel; improper use of the die causes local overload; for hot-working mold softening at high temperature will also lead to mold thermoplastic deformation […]

Injection Molding Design – Summary of Requirements on Mold Design Process

The mold design is different from product design, because it is a process design itself. The basic requirements for mold design are: 

The mold shall be able to complete the process of parts processing.

 

The equipment on which the mold is used shall be specified; and the technical parameters of the equipment shall be complied with.

 
 

The parts molded during the validity period of the mold shall have the dimension tolerance within the allowed range of parts drawings.

 

For prototype mold, the mold […]

Sharing Specific Mold Processing Methods

(1) Determine the type of mold.
Such as pressing die (open, semi closed, closed), casting die, injection mold, etc.
mold making
(2) Determine the main structure of mold type.
The ideal die structure is to determine the necessary molding equipment, the ideal cavity number, under absolutely reliable conditions can make the mold itself work to meet the technical and economic requirements of the plastic parts. The technical requirements for plastic parts are to ensure the geometry, surface finish and dimensional accuracy of plastic […]

What Needs to be Determined before Plastic Mold Design?

Before designing the plastic mold, we must find out the required plastic parts and production conditions. For this reason, we need to do the following work.
 
(1) Acceptance of mission documents
 
The task document for molded plastic parts is usually presented by the designer of the product.
 

the formal drawing of the specimen is signed, and the grade and transparency of the plastic are specified.
Specifications or technical requirements for plastic parts.

3.Production output.

samples of plastic products.

 
Usually the mold design task statement is put […]

Application of Two Color Mold in Automotive Mold Industry

In our demand for molds, there is a kind of called two-color mold, generally like a car lampshade, you can see, there are white and red connected, that belongs to the two-color mold. Some people will be curious, how can mold products come out on both sides of the red intermediate white? Two-color mold is generally used by injection molding, but two-color mold we need to inject two colors of materials. Today, we will introduce the use of two […]

Aspects of Mold Technology Level

The level of mold technology ultimately manifests in the mold manufacturing cycle, mold life, mold precision and stiffness, mold manufacturing costs, mold standardization and other aspects. These are also the basis for evaluating the economic and technical indicators of die and mold.
 

Mold manufacturing cycle

 
The mold manufacturing cycle reflects the production technology level and organization management level of the mold and mould enterprise. In manufacturing mold, we should try to shorten the mold manufacturing cycle. At present, in order to shorten […]

Acquaintance of Plastic Injection Mold

In daily life, plastic products are ubiquitous, and the requirements for plastic products are becoming higher and higher, including material, shape and so on.

How do we make plastic products? There is one way for injection molded plastic products, where the most important part includes the design and development, injection mold, injection materials, the following will be for injection mold this aspect of a brief introduction.
First, what is mold? Mold is a model, according to the model to make products, […]

What Kind of Material Can Make A Good Mold?

(1). Meetsthe requirements of working conditions
 

Wear resistance

When the blank is plastic in the mold cavity, the surface of the cavity flows and slides along the surface of the cavity, which causes the friction between the surface of the cavity and the blank, which causes the die to fail because of the wear. So the wear resistance of the material is one of the most basic and important properties of the mold.
 
Hardness is the main factor affecting the wear resistance. […]