plastic injection molding knowledge - Page 13 of 41

How Many Types Of Lathes Are There?

18/12/2022

The lathe is the master machine of all equipment, as is the case for plastic mold factories, so the understanding and classification of lathes is the most basic. First of all, let’s know what a lathe is. A lathe is a machine tool that mainly uses turning tools to turn rotating workpieces. On the lathe, drills, reamers, taps, dies and knurling tools can also be used for corresponding processing. Lathes are mainly divided into nine

What Is An Intelligent Mold?

18/12/2022

What is an intelligent mold? The word “intelligence” is a topic that everyone has been concerned about and curious about. There are intelligent robots, smart phones, intelligent sanitary systems… All intelligent products need to be manufactured on the basis of intelligent molds. So what is an intelligent mold? First, let’s talk about intelligent manufacturing equipment. Intelligent manufacturing equipment is a manufacturing equipment with the functions of perception, analysis, decision-making and control. Intelligent molds also have

What Should Be Paid Attention To When Selecting The Mold Surface In Mold Design?

17/12/2022

What should be paid attention to when selecting the mold surface in mold design? Mold parting surface Mold terminology. Generally speaking, a mold is composed of two parts: movable mold and fixed mold (or male mold and female mold). The parting surface refers to the part that can be contacted when the two parts are in a closed state, and it is also the parting surface that divides the workpiece or mold part into

Where Does The Mold Processing Quality Mainly Depend?

17/12/2022

Most of the materials used for mold accessories are mold steel materials with high hardness, which requires mold accessories processing equipment to have thermal stability and high reliability. Especially for complex cavities and multi-function composite dies, with the complexity of the part shape, it is necessary to improve the design and manufacturing level of the die to ensure the processing quality of die accessories. What are the aspects of mold processing quality? What factors should

Whether The Die Is Scrapped Or Repaired After Damage Should Be Considered As Appropriate!

17/12/2022

Die failure is the most common problem in stamping production, which often causes production stoppage and affects the production cycle. Therefore, it is necessary to find out the cause of mold failure as soon as possible and maintain it reasonably. First of all, we need to take into account the high mold costs of injection molding production. Usually, mold costs account for about a quarter of the total cost of parts. This is mainly

What Are The Requirements For Plastic Raw Materials In Hot Runner Injection Molding?

17/12/2022

Because the hot runner mold has high requirements for plastics, the hot runner must be selected according to the specific plastics and their applications (the replacement of colored plastics is difficult and time-consuming). Different nozzles shall be used according to the type of plastic, and the plastic used shall meet the following conditions: ① Plastic has good thermal stability. Plastic has a wide melting temperature range, small viscosity change, and is insensitive to temperature change.

The Main Reasons For The Appearance Of Flaring Edge In The Processing Of Injection Mold

17/12/2022

Flap edge, also known as flash, overflow, overflow, etc., mostly occurs in the opening and closing position of the mold, such as the parting surface of the mold, the sliding part of the slider, the gap of the insert, the hole of the ejector pin, etc. If the overflow is not solved in time, it will be further expanded, resulting in local collapse of the impression die, causing permanent damage. The flapping edge of the

What Factors Will Affect The Precision Of Injection Mold Processing

17/12/2022

Factors affecting the precision of parts produced by injection mold: 1) Molding materials: plastic shrinkage, fluidity, moisture, volatile content, raw material allocation process, production batch, etc. can affect the precision of plastic parts produced by injection mold. 2) Process conditions: molding temperature, pressure, time, shrinkage.; 3) Part shape: shape, wall thickness, molding shrinkage, demoulding slope, etc; 4) Injection mold: manufacturing precision, wear degree, shape and structure, shrinkage direction; 5) Aging change after forming: post shrinkage,

Main Runner Design Guide

16/12/2022

Main runner: 1. Definitions: The main runner refers to the section from the contact part of the injector nozzle and the mold to the branch runner. 2. Design Guide: (1) The end face of the sprue is usually circular. （2）. In order to facilitate demoulding, the main runner is generally made with a slope. However, if the main runner passes through multiple plates at the same time, pay attention to the slope and size of

What Is Two Color Injection Molding?

16/12/2022

Two color injection molding: refers to the molding method of injecting two kinds of plastics with different colors into the same mold. It can make plastics appear two different colors, and can make plastics present regular patterns or irregular moire patterns, so as to improve the usability and aesthetics of plastics. Characteristics: 1. The core material can use low viscosity materials to reduce the injection pressure. 2. In consideration of environmental protection, recycled secondary materials

Difference Between Two-color Mold And Rubber Coated Mold

16/12/2022

Difference between two-color mold and rubber coated mold A. Two color mold: a mold in which two plastic materials are injected on the same injection molding machine in two times, but the product is only molded once. Generally, this molding process is also called double material injection molding, which is usually completed by a set of molds and requires a special two-color injection molding machine. Basic principles of two-color injection mold design: 1. Hard glue

Process Characteristics Of Insert Injection Molding

16/12/2022

Process characteristics of insert injection molding Injection molding of inserts: insert molding refers to the molding process in which pre prepared inserts of different materials are put into the mold and then resin is injected. The molten materials are joined with the inserts and solidified to make an integrated product. Process characteristics: 1. The pre forming combination of multiple inserts makes the post engineering of product unit combination more reasonable. 2. The combination of the

Notes on Design of Metal Inserts for Injection Molding Products

16/12/2022

INSERT MOLDING is a kind of plastic mould, commonly known as insert mould. This kind of mold is different from ordinary plastic mold in the selection of plastic materials, mold design and development trial stage The inserts in the insert molding mold are generally stamping parts or threaded inserts. Before injection molding, they must maintain a fixed position in the mold, and then after the injection molding is completed, they will be firmly combined with

Advantages Of Insert Molding

16/12/2022

Advantages of insert molding Some large mold enterprises have pursued not to insert parts at the beginning, but in the end, whether to insert parts or not should be analyzed according to specific conditions. The biggest disadvantage of the insert is that it reduces the strength of the mold itself, but it can use different materials to increase the strength of the weak parts separately. 1. Material saving: The sizing of the rear die is

The Characteristics Of Insert Molding Technology

16/12/2022

insert molding is a process where the prepared material is loaded into the mold and the resin is injected, and the molten material is joined and solidified to form the product. Out-of-sert molding refers to the process of molding embedded at a part of the metal surface. The above two forming methods are essentially the same. Its characteristics are as follows. 1. The combination of resin’s formability, bending and metal’s rigidity, strength and heat resistance

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