The fluid dynamics law of differential pressure vacuum injection process was studied, and the corresponding reaction kinetic model, reaction molding viscosity model and chemical rheological model were established to analyze the forming mechanism. Secondly, combined with orthogonal experimental design theory and CAE technology to design and simulate orthogonal experiments, and use MPI software to simulate the injection molding process and computer-aided analysis of the quality of the cast parts, explore the influence of the main process parameters on the quality of the cast parts, determine the key process parameters affecting the quality, summarize the adjustment law of key process parameters, determine the optimized process parameter combination, and provide theoretical support for the actual injection process parameters.

In view of the problems existing bubble detection and elimination methods of vacuum injection equipment, combined with machine vision and image processing technologies, the real-time monitoring method of bubbles is studied. Firstly, the direct image (DI) method is used to realize the vacuum injection bubble detection by CCD digital camera, and the continuous acquisition of bubble images is realized through VC++ thread technology. Then, the image processing algorithm suitable for vacuum injection bubble is studied, especially for the bubble feature extraction with high overlap and large distortion, a bubble edge pixel ratio calculation method is proposed, which better solves the problem of information loss of overlapping bubbles. Finally, the specific implementation process of the method is given, and its feasibility and effectiveness are verified through experiments.

It is mainly engaged in the design, production and sales of intelligent mechatronics production equipment and its parts. Since its establishment, the company has provided customers with a full set of services from product design to rapid manufacturing with the advantages of its advanced technology and equipment, and agent imported PU materials (similar to ABS, PP, PC, soft rubber, etc.).

Vacuum injection machine equipment
The TOP series vacuum injection molding machine produced by our company adopts advanced differential pressure vacuum silicone mold technology, which can provide customers with trial production of small batches of plastic parts for assembly verification, prototype and functional testing. Suitable for home appliances, electronics, automotive, medical and other industries. TOP series vacuum injection equipment features:
l Negative pressure is used to automatically adjust the vacuum pump to form a stable vacuum negative pressure;
l Electronic safety pressure valve is adopted to ensure the safety of equipment operation;
l The speed of the agitator is continuously adjustable, which is suitable for materials of different components;
l Special structure agitator, small stirring resistance, uniform stirring;
The equipment has a fast vacuum speed and can reach a negative pressure of -0.06Mpa within 5 seconds
Vacuum injection machine, also known as vacuum remoulding machine, that is, the cost and risk of mold extraction under vacuum conditions. Three-dimensional design products can be obtained by various processing methods CNC, SLA, etc.) to obtain prototypes, and products can be obtained by prototype replication. The reproduced products have high precision and good quality, and are a complete whole, fully meeting the various functions of the design requirements. A machine that directly replicates product materials from prototypes. Especially suitable for the trial production of small batches of functional parts, reduce the direct steel opening performance can simulate most of the existing engineering material properties, PU, ABS, PP, PVC, POM, nylon, etc., while can copy transparent parts such as PC, plexiglass, etc., thermoplastic elastomers TPR, TPR, TPU, etc. and various soft materials such as silicone, rubber, etc. At the same time, various colors can be added to the replica product to meet various appearance needs. Product replication is not affected by volume, complexity, various structures, etc., easy mold opening, short cycle, fast effect. Haywest Technologies is committed to recommending state-of-the-art RT equipment to customers. The products have served many well-known enterprises at home and abroad, such as: Changchun FAW, Johnson Sen, Shanghai GM, Yanfeng, Shenyang Brilliance Jinbei, Huawei, ZTE, PHILLPS, FLEXTRONIC, Yinhua, Guangzhou Productivity, Shenzhen Productivity, Chongqing Productivity, Harbin Institute of Technology, Central South University, Guizhou Everyone, etc. Well-known enterprises and institutions and colleges and universities. And exported to Japan, Thailand and other countries and regions.

Low pressure infusion molding machine
The latest generation of RIM low-pressure infusion molding machine developed by the company is the production of polyurethane elastomer, rigid, semi-rigid,
Special equipment for soft PU plastic products. The new generation of low-pressure perfusion machine adopts fully sealed & fully open shape design,
Beautiful and generous, the new low-pressure perfusion machine has superior performance, stable quality, supports all-electric operation mode, mixes evenly, and the proportion, flow rate and temperature are precisely adjustable. (According to customer needs, we can provide different specifications of low-pressure perfusion equipment) Low-pressure perfusion machine is a equipment that adopts polyurethane low-pressure infusion technology to quickly and reliably produce various small batches of high-quality plastic samples.