Plastic extruder after 100 years of development, has been derived from the original single screw twin screw, multi-screw, and even no screw and other models. Plastic extruder (host) can be with the pipe, film, holdings, single Silk, flat wire, packing belt, squeeze network, plate (film), profile, granulation, cable coating and other plastic molding auxiliary equipment to match the composition of a variety of plastic extrusion molding production lines, producing all kinds of plastic products.
Development Trend of Plastic Extruder
1, extruder towards large-scale, high-speed, high-direction development
Foreign screw diameter of 200-250mm extruder has been very common, the screw diameter greater than 400mm special extruder is also not uncommon.Implementation of screw diameter, can improve the production capacity of the extruder, when the screw diameter doubled , The production capacity of the extruder can be increased several times.
The speed of 300r / min above the high-speed and ultra-high-speed extruder, so that the production capacity of the extruder is greatly improved.But the speed increase will bring plasticization and other problems, which appeared a lot of new screw, Such as separation type, mixing type, barrier type, shunt type, combination type, etc. The aspect ratio of screw is also developed from 20: 1 to 36: 1, and up to 43: 1.
2, modular
Extruder auxiliary equipment has also been improved, the standard standardized to meet the requirements of different plastic products.Modular production can meet the special requirements of different users, shorten the development cycle of new products, for greater market share; and Specialized production can be out of the molding equipment of the various system modules to organize production and even global procurement, which to ensure the quality of the whole, reduce costs and accelerate cash flow are very favorable.
3, intelligent and network
Developed countries have been widely used in modern electronic and computer control technology, the entire extrusion process parameters such as melt pressure and temperature, the body temperature, the main screw and feed screw speed, feed volume, the The ratio of raw materials, the motor current and voltage parameters such as on-line detection, and the use of computer closed-loop control.Some companies have been using online remote monitoring, diagnosis and control of the extrusion molding line for network control. Stability, improve product accuracy are extremely favorable.
4, customization
In order to meet the requirements of new materials and new processes, new or special extruders are emerging, such as three screw extruders and planetary multi-screw, screw extruder, reactive extruder, two-color extruder, hair Bubble extruder and so on.
What is the industry outlook for plastic extruders?
As China's extruder products and strategic new industries are closely linked, with high efficiency, energy-saving advantages and high cost, the developed countries in the low-end exports, this part of the consumer demand is rigid.Therefore, the plastics machinery industry Will have a broad market prospects. At the same time, we also need to see the challenges facing!
Industry demand:
(1) from the development of plastic products, plastic machinery to provide users from the products, process recipes, equipment and after-sales service, such as full-service.
(2) in accordance with the requirements of users, designed and manufactured for users to solve their difficult process of the application of equipment.
(3) timely reference to the technological development of related industries, the latest scientific and technological achievements applied to the industry, such as electronics, communications industry and the automotive industry, aerospace industry scientific and technological achievements.
(4) keep up with the progress of materials science, so that new equipment to adapt to the processing of new raw materials.
(5) to strive for high-speed operation, high efficiency and energy saving.
preventive solution:
(1) to break the boundaries of the original industry, to achieve plastic machinery services in the larger market.
(2) continue to learn from foreign advanced products and equipment and equipment to develop China's presses, improve the technical level.
(3) to avoid domestic vicious competition and then open up foreign markets.
(4) focus on a local market will be big business.
(5) to increase investment in science and technology, to accelerate the absorption of high-quality management and scientific and technological personnel, in order to further develop and strive to achieve the international advanced level.