plastic injection molding knowledge - Page 16 of 41

The Role Of Cutting Oil In Die Manufacturing

08/12/2022

The role of cutting oil in die manufacturing Cutting oil plays an important role in the mold manufacturing process. The excellent refrigeration performance and extreme pressure wear resistance have made a qualitative leap for the service life of NC inserts and the improvement of mold shell manufacturing precision. According to the different workpiece materials, the performance of cutting oil is also different. It is generally determined according to the difficulty coefficient of die

How to choose a suitable and powerful manufacturer from thousands of injection molding manufacturers?

08/12/2022

How to choose a suitable and powerful manufacturer from thousands of injection molding manufacturers? I think the following points should be paid attention to: Price is not unique. Quality, cycle and service are also important There are many types of injection molds. Generally, injection molding manufacturers will choose different processing technologies according to the material, physical and chemical properties, service life, dimensional accuracy requirements, and other factors. Due to the differences of the parts, more

How Many Injection Molds Types Can Be Divided Into According To The Different Types Of Gating System

07/12/2022

Injection mold is composed of several steel plates and various parts, basically divided into: A Forming device (female die, male die) B Positioning device (guide post, guide sleeve) C Fixing device (I-shaped plate, code mold pit) D Cooling system (water delivery hole) E Constant temperature system (heating pipe, generator) F Flow passage system (nozzle hole, flow passage groove, flow passage hole) G Ejection system (ejector pin, ejector rod) The molds can be divided into three

Advantages And Disadvantages Of Hot Runner System

07/12/2022

Hot runner system, also known as hot runner system, is mainly composed of hot runner sleeve, hot runner plate and temperature control electric box. The common hot runner system includes single point hot runner and multi-point hot runner. Single point hot gate is used to directly inject molten plastic into the mold cavity with a single hot gate sleeve, which is applicable to the plastic mold with a single cavity and single gate; The multi-point

Type and Application of Hot Runner System for Injection Mold

07/12/2022

Type and Application of Hot Runner System for Injection Mold In the application of hot runner technology, the correct choice of gate type is very important. Gate type directly determines the selection of hot runner system components and the manufacture and use of molds. Therefore, according to the different gate types, the hot runner system can be divided into three types: hot tip hot runner system, sprue type hot runner system and valve type

How To Design The Gate Of Injection Mold?

07/12/2022

How to design the gate of injection mold? Gate design is related to size, shape, mold structure, injection process conditions and properties of the plastic parts. But in terms of basic functions, the gate section should be small and the length should be short, because only in this way can we meet the requirements of increasing the flow rate, fast cooling and sealing, facilitating the separation of plastic parts, and minimizing the gate residue. 1.

What Parameters Should Be Paid Attention To When Designing Injection Mold

07/12/2022

What parameters should be paid attention to when designing injection mold There are two templates on the injection molding machine, one of which is incomprehensible, which is called fixed template; The other one can be moved, which is called movable template. The mould is fixed on the two formworks by screws and pressing plates respectively. When the mold is opened, the moving template of the injection molding machine moves to open the mold. After the

Precautions For Injection Mold Assembly

06/12/2022

Mold assembly is like assembling a machine. Each component and each screw must be free from errors. Otherwise, the consequences will be very serious. It will lead to product defects, affecting production, and the worst is to damage the mold and lead to scrap. Therefore, assembly work must be carried out very carefully. In the process of assembly, pay special attention to the cleaning of molds such as waterways and screw holes. Before assembly, carefully

Factors Affecting the Quality of Precision Injection Mold in the Manufacturing Process

06/12/2022

Factors Affecting the Quality of Precision Injection Mold in the Manufacturing Process Mold design, mold design will directly affect the quality of plastic products. Because the mold cavity size is obtained from the required size of plastic products plus the shrinkage of the materials used, and the shrinkage is often a value within the range recommended by the plastic manufacturer or engineering plastics manual, it is not only related to the mold gate form, gate

Main Process Of Customized Injection Mold

06/12/2022

For the production of plastic mold, the customer’s engineering personnel first provide the product drawings to the mold manufacturer. The manufacturer collects, analyzes and digests the product data through the task requirements of molding plastic production, which is customized for customers. The plastic mold customization steps mainly include: Foreign trade inquiry – issuing test article or 3d diagram – calculating price – determining mould steel – determining batch raw materials – defining appearance processing technology

How To Maintain Injection Mold After Production?

06/12/2022

Injection mold maintenance and mold repair are more important. The more times of maintenance, the shorter the mold life. On the contrary, the better the maintenance, the longer the mold life. Injection mold is just like a human body. If you do not maintain it regularly or reasonably, there will be various problems in the production, leading to no guarantee of product quality. In addition to the maintenance of injection molds, we need to know

How To Make Use Of Back Pressure in Injection Molding Process

06/12/2022

In the injection molding process, it is often difficult to solve the shrinkage of a certain part of the product. In this case, only by using the back pressure and adjusting the back pressure parameters properly can we solve the problem. The reason for using back pressure is that when the screw rotates, the hot plasticized plastic is pushed forward under the action of the screw and reaches the front of the screw through the

Precautions For Injection Mold Processing

05/12/2022

The application of new injection molding technology in injection molding processing, although there are many similarities between the injection molding principles and processes of thermosetting and thermoplastic plastics, there are also great differences between them due to their different chemical properties. The injection principle of thermosetting plastics is to heat the molding materials from the hopper of the injection machine into the barrel and melt and plasticize them under the rotating action of the screw,

Main Composition and Analysis of Advantages and Disadvantages of Mold for Hot Runner System

30/11/2022

Composition of hot runner system Although there are many hot runner manufacturers and various hot runner product series in the world, a typical hot runner system consists of the following parts: Hot runner plate NOZZLE Temperature controller Auxiliary parts Advantages of Hot Runner Mold Hot runner die is widely used in the developed countries and regions in the world. This is mainly because the hot runner mold has the following significant features: Shorten

Some Precautions for Plastic Mold Making

22/06/2022

Some Precautions for Plastic Mold Making 1、 Don’t just focus on product planning and neglect plastic mold making. When developing products or trial production of new products, some users tend to focus on product development and development at the initial stage, ignoring the communication with plastic mold manufacturers. After the product planning scheme is confirmed, early contact with the mold manufacturer has some advantages: 1. It can ensure that the planned products

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