plastic injection molding knowledge - Page 8 of 41

Differences between hot runner mold and cold runner mold

03/01/2023

Differences between hot runner mold and cold runner mold The mold is a kind of molding equipment, with good molding effect and basically no deformation after molding. Now there are more and more types of molds. The main reason why the hot runner mold is widely used is its hot runner system. What is the difference between it and cold runner mold? In fact, the difference between the two is mainly in hot runner and

How to maintain the hot runner system?

03/01/2023

How to maintain the hot runner system? The hot runner system is a kind of widely used plastic molding gating system, which mainly uses the heating device and electronic temperature control system to prevent the molten plastic in the gating system from solidifying, so as to smoothly and orderly fill the plastic into the mold cavity. In the absence of injection pressure, the molten plastic will not flow automatically, nor will wire drawing, overflow and

How to ensure the service life of the hot runner?

03/01/2023

How to ensure the service life of the hot runner? The hot channel is used in the injection mold to inject molten plastic particles into the heating part system in the mold cavity. The hot channel mold is a new structure, which heats the runner and runner of the traditional mold or three plate mold, and it is unnecessary to take out the runner and runner during each molding. The advantages, use and precautions of

How to reasonably select cold runner and hot runner from an economic point of view

03/01/2023

How to reasonably select cold runner and hot runner from an economic point of view In the injection molding process, one of the most important functions of the mold is to transport the melt from the barrel to the mold cavity. Melt conveying management has an important influence on the final quality of parts and the final success of the production line. The precise control of resin flow, pressure and temperature is very important

Various requirements for two-color injection molding

03/01/2023

Various requirements for two-color injection molding Material requirements The matching materials for two-color injection molding must meet two basic compatibility conditions, namely, adhesion compatibility and processing compatibility. technological requirements Soft and hard glue dual radiation design There must be a certain temperature difference between the melting points of the two materials, generally 60 ℃ is recommended, and at least 30 ℃ is recommended. The melting point temperature of the first shot material is high, generally

Application of New Hot Runner Flow Regulation System Technology

03/01/2023

Application of New Hot Runner Flow Regulation System Technology 1、 Traditional problems: There are some problems in the traditional production mode of centrifugal fan blades, such as serious waste of runner materials, low product qualification rate and poor dynamic balance of products· The fine nozzle cold runner is adopted for glue feeding, which produces a lot of waste materials and wastes raw materials seriously· After pressure maintaining, one chamber is overweight, the product qualification rate

Process characteristics of two-shot injection molding

03/01/2023

Process characteristics of two-shot injection molding Two shot injection molding refers to the molding method of injecting two kinds of plastics with different colors into the same mold. It can make the plastic parts appear two different colors, and can make the plastic parts appear regular patterns or irregular moire patterns, so as to improve the practicality and beauty of the plastic parts. Two color injection molding is a process of injection molding. It

Application Advantages of High Speed Machining Process for Automobile Dies

02/01/2023

Application Advantages of High Speed Machining Process for Automobile Dies High speed cutting is the development trend of automobile die manufacturing High speed machining technology is an advanced manufacturing technology in the 21st century, which has strong vitality and broad application prospects. High speed machining technology can solve a series of problems that have been perplexed in the conventional machining of automobile dies. In recent years, in the United States, Germany, Japan and other industrial

Selection Technique of Gate Position for Automobile Die

02/01/2023

Selection Technique of Gate Position for Automobile Die 1. Place the gate at the thickest part of the product, and pouring from the thickest part can provide better filling and pressure maintaining effect. If the pressure is insufficient, the thinner area will solidify faster than the thicker area, so as to avoid placing the gate at the sudden change of thickness, so as to avoid the occurrence of hysteresis or short shot. 2. If

Nine Reform Trends of Automobile Moulds

02/01/2023

Nine Reform Trends of Automobile Moulds At present, there are nine major development trends in the global automobile die industry, namely: the CAE effect of the stamping forming process is becoming more prominent, the three-dimensional planning position of the die is stabilized, the digital die technology has become the mainstream direction, the rapid development of die processing automation, the high strength steel sheet stamping technology is the future development direction, the new mold commodity is

Development trend of automobile die manufacturing technology

02/01/2023

Development trend of automobile die manufacturing technology In the future, automobile die manufacturing technology will have the following development trends: ◆ Accelerate information drive ◆ Improve manufacturing flexibility ◆ Agile manufacturing ◆ Systematic integration Its specific performance can be divided into the following two parts: First, the digital technology of mold design, manufacturing and management: such as C4P (CAD/CAPP/CAM/CAE/PDM), ERP, PLM and other technologies will continue to expand their applications; Second, new technologies for mold

How to increase the brightness of ABS plastic products

02/01/2023

How to increase the brightness of ABS plastic products When producing plastic products, how can we meet customers’ needs for high brightness ABS plastic products? I. Plastic mold 1. If the mold cavity is poorly processed, such as scars, micropores, wear, roughness and other deficiencies, it is bound to reflect on the plastic parts, making the plastic parts have poor luster. For this, the mold should be carefully processed to make the cavity surface as

Successful T1 Mold Sampling

31/12/2022

Another successful project has been done by Win Win Mold recently. We are very happy to share this good news! The first mold trial is very successful! The plastic material is NORYL GFN3 PPO Grey with shrink rate of 0.003 inch/inch (shrinkage:3/1000). Good venting is very important for this mold to run PPO material. And there are 5 sets interchangeable inserts to form 5 versions of plastic molded parts. Thanks for all our Win Win

Terminology Of Heat Treatment Of Plastic Moulds

31/12/2022

Terminology of heat treatment of plastic moulds 1. Annealing (1) Concept: the heat treatment process of heating the steel to an appropriate temperature, holding it for a certain time, and then slowly cooling (generally cooling in the furnace). (2) Purpose: a. Improve the hardness and plasticity of low steel (to facilitate cutting); b. Refine the grain and even the structure and composition of the steel; C. Eliminate residual internal stress in steel to prevent

Essential Skills For Plastic Mold Repair Personnel

31/12/2022

Essential skills for plastic mold repair personnel As we all know, with the accumulation of mold production times on site, mold life is a process of gradual decline, from running in of new mold to normal production to the end of life. When the new mold is produced in small quantities, some problems may be exposed. Whether the mold design is reasonable and the mold processing precision meets the product requirements, the mold manufacturer will

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