plastic injection molding knowledge - Page 14 of 41

Design Methods And Techniques For Parting Surface Of Injection Moulds

15/12/2022

The so-called parting surface is the surface where the die is opened to take out the product. The selection of parting surface is also the first step in die design, which is affected by many factors such as shape, appearance, wall thickness, dimensional accuracy, number of die holes, etc. The general product is in hand, and the large parting surface is sure you have no problem with it. For many side core pulling, or referring

Application Technology of Intelligent Die Manufacturing in Automobile Production

15/12/2022

Since the 21st century, China’s automobile industry has achieved full development and rapid growth. It has become a leader in automobile production and sales, all thanks to the intelligent automobile manufacturing and design brought by the digital process and computer development. Looking at the whole body, it is not difficult to find that more than 90% of auto parts are manufactured and produced by stamping method, and their design level can directly affect the performance

The Main Design Points Of Automobile Lamp Reflector Mold

15/12/2022

For the automobile lamp reflector mold, the main design points are: (1) Special injection molding process equipment is required, and injection molding machines specialized in producing BMC plastics are used. The requirements for injection molding process equipment are very strict. (2) BMC material belongs to super hard plastic. In mold design, heating system and parting surface layout system need to be designed. Molding parts must be quenched to improve wear resistance and mold life. (3)

Daily Precautions For Injection Molding Staff

15/12/2022

Daily precautions for injection molding staff 1: In daily production, we will have environmentally friendly products, and the corresponding labels shall be marked with “ROHS”. If personnel need to leave the machine in the daily production process, they must be replaced or watched. 2: Shutdown for more than 30 hours (more than 10 minutes in summer): A. Block the discharge opening of the barrel 10 to 15 minutes before the shutdown and measurement (depending

Classification Of Automobile Die Sizes

15/12/2022

Classification of automobile die sizes 1. Small mold ≤ 1000mm Other small accessories such as A pillar and B pillar in the interior of the car, as well as threshold strip, door panel guard board, and rear-view mirror in the exterior decoration belong to the scope of small molds. 2. 1000mm ≤ medium mold ≤ 1500mm The C-pillar, center console, front and rear door panels, trunk guard, exterior middle lights, grille, etc. in the interior

What Is The Gating System(Runner System) Of Plastic Injection Mold?

15/12/2022

Although the structure of the mold may vary greatly due to different types and properties of plastics, shapes and structures of plastic products, and types of injection machines, the basic structure is the same. The mold is mainly composed of gating system, temperature regulating system, molding parts and structural parts. Among them, the gating system and molding parts are the parts that directly contact with the plastic and change with the plastic and products. They

Production Process Characteristics Of Injection Molding Two-color Products

14/12/2022

Production Process Characteristics Of Injection Molding Two-color Products Two-color injection molding usually refers to the molding of two colors or different kinds of plastics. Because the two groups of injection units and nozzles of the two-color machine are independent, the color of the finished product is mostly two-color and distinct, not mixed together. The biggest difference between two-color injection molding machine and general injection molding machine lies in the design of movable template of

Difference Between Plastic Mould And Two-color Mould.

14/12/2022

Difference between plastic mould and two-color mould 1. Two-color mold: a mold in which two kinds of plastic materials are injected on the same injection machine and molded twice, but the product is only molded once. Generally, this molding process is also called double injection molding, which is usually completed by a set of molds and requires a special two-color injection molding machine. Two-color mold can make two resins and colors with different characteristics

Several Factors That Determine The Price Of Mould

14/12/2022

Several factors that determine the price of mould. Mould is also a commodity. The common requirements of objective conditions for moulds, that is, the technical and economic indicators of moulds, can be summarized in four aspects: the precision and rigidity of moulds, the production cycle of moulds, the production cost of moulds and the life of moulds. In all aspects of the mold manufacturing process, attention should be paid to the four requirements of

24 Kinds Of Metal Materials Commonly Used In Mold Processing And Their Characteristics

14/12/2022

24 kinds of metal materials commonly used in mold processing and their characteristics There are more than a hundred kinds of materials that can be used for mold processing, including metal, plastic, inorganic nonmetal and paraffin, etc. However, according to the actual needs, the uses and demands of each material are different. Today, let’s talk about the most commonly used 24 kinds of metal materials in mold processing. 1. 45—— High-quality carbon structural

What Are The Factors That Affect The Quality Of Injection Mold?

14/12/2022

What are the factors that affect the quality of injection mold? Injection mold manufacturing is a very complex process. From injection mold design, processing, assembly, mold testing to mass production, any point in the whole process may affect the quality of injection mold. So what are the factors that affect the quality of injection mold? 1、 Selection of die steel The choice of steel is the decisive factor for mold quality. The first task is

Basic Composition And Structure Of Injection Mold

14/12/2022

Basic composition and structure of injection mold 1. Gating system: the channel for molten materials to flow into the mold cavity from the injector nozzle, including the main runner, splitter, gate, cold feed well, pulling rod, etc. 2. Molding parts: parts for molding plastic parts, such as core, cavity and other auxiliary parts. 3. Temperature control system: used to adjust the temperature of the mold. 4. Plastic part ejection system: including

Principle And Main Structure Of Injection Mold

14/12/2022

Principle and main structure of injection mold Injection mold is a part that gives shape and size to plastics during molding. Although the structure of the mold may vary greatly due to different types and properties of plastics, shapes and structures of plastic products, and types of injection machines, the basic structure is the same. The mold is mainly composed of gating system, molding parts and structural parts. Among them, the gating system and molding

Brief Introduction To Process Parameters Of Injection Molding

13/12/2022

Brief introduction to process parameters of injection molding Five elements of control in injection molding: Temperature: including drying temperature, barrel temperature, mold temperature and machine oil temperature Pressure: including clamping pressure, opening pressure, injection pressure, holding pressure, seat in and seat out pressure, jacking in and jacking out pressure, cable inversion pressure and back pressure Speed: including mold locking speed, mold opening speed, injection speed, pressure maintaining speed, seat in and seat out speed,

Main Steps Of Injection Molding

13/12/2022

The so-called injection molding is that the plastic materials in the barrel of the injection molding machine undergo external heating and the shear heat generated by the rotation of the screw to plasticize the resin materials into a melt, and then apply a certain pressure to inject the melt into the cavity with a certain shape. After cooling and shaping, the products produced are injection molding. 1. Injection molding process The injection molding process of

Blog