China Plastic Pipe Production Line Enterprise Survivability
China s Plastic Pipe Production Line enterprise survivability
From the domestic perspective, China is still in the industrialization, information, urbanization, marketization, internationalization in-depth development stage, is still in the development of an important strategic opportunity period, which will give the Plastic Pipe Production Line industry to provide an inexhaustible development momentum. China's Plastic Pipe Production Line market is developing rapidly, but the proportion of extruder export is still low. Rising raw material costs and energy costs pressure, so that energy saving, materials become the focus of extrusion processing industry. At the same time, extrusion technology suppliers can develop a variety of different angles from the rich energy-saving programs to maximize the user's energy needs to meet.
The current domestic Plastic Pipe Production Line industry development status is the existence of independent innovation capacity is low, high-grade and personalized special varieties less, low concentration of these issues. The existence of these problems led to China's plastics machinery industry is not as soon as possible to catch up with the level of foreign plastic machinery. As China's Plastic Pipe Production Line products and strategic new industries are closely linked, with high efficiency, energy-saving advantages and high cost, the developed countries to the low-end exports, this part of the consumer demand is rigid, so the extruder Industry development still has a larger market space.
China's Plastic Pipe Production Line 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, and therefore, Plastic Pipe Production Line industry Development still has a larger market space.
New Plastic Pipe Production Lines and production lines in the future market will be high technical content, the direction of price reduction. Domestic Plastic Pipe Production Line is now basically tapered twin-screw extruder and single screw extruder-based, more mature technology, the market is also the largest sales, but the general specifications of such products have been oversupply, can only maintain the market peak Period of about 50% to 60%.
Plastic Pipe Production Line in the future focus on the development of parallel to the twin screw extruder, suitable for large extrusion molding extrusion. Parallel to the same twin screw extruder to the sixth generation, the seventh generation of high-speed, large aspect ratio direction. Single screw extruder is the direction of development of large diameter, large diameter ratio, exhaust smoothly. In fact, the single screw extruder is a low-power, low-cost models, as long as the technology properly, it is basically able to achieve the effectiveness of twin-screw extruder, such as the United States is now using the Plastic Pipe Production Line is mostly single The screw, due to the high technological content, replaces the twin screw extruder.
The new high-end Plastic Pipe Production Line has the advantages of high efficiency and high yield, which can make investors with relatively low input and high output, but the auxiliary device and control system must improve the accuracy of the screw and barrel Wears need to wear high wear and ultra-high wear-resistant materials, reducer and bearings in the mature high-speed operation to improve its life.
Production capacity and Plastic Pipe Production Line screw speed relationship, with the screw speed increases, the production capacity increases, but the Plastic Pipe Production Line screw speed is too high, the production capacity increased little, and the material is easy to burn. Power and Plastic Pipe Production Line screw speed relationship, with the screw speed increases, the power also increased, but the power with the Plastic Pipe Production Line screw speed increase rate is gradually decreased. The relationship between the head pressure and the screw speed of the Plastic Pipe Production Line is that the head pressure increases as the screw speed increases. Rubber and barrel: speed and rubber in the barrel of the cut, pinch refining, plastic, heating the relationship. Transmission system: The relationship between the transmission system and the screw speed of the Plastic Pipe Production Line is that the lower the screw speed, the greater the reduction ratio of the transmission system, and complicate the transmission system.
Plastic Pipe Production Line barrel of the inner surface hardness is higher than the Plastic Pipe Production Line screw, it is more damage than the Plastic Pipe Production Line screw late. Plastic Pipe Production Line barrel scrapped is the diameter of the diameter due to wear and increase. If the Plastic Pipe Production Line barrel has a certain nitriding layer, the barrel can be directly bore, This diameter is formulated for the new extruder screw.
Plastic Pipe Production Line barrel diameter by machining finishing re-cast alloy, the thickness of 1 ~ 2mm, and then finishing to the size. Under normal circumstances, the Plastic Pipe Production Line barrel of the homogenization section wear faster, this section (take 5 ~ 7D long) by boring finishing, with a nitriding alloy steel bushing, Plastic Pipe Production Line barrel diameter Refer to the extruder screw diameter, Plastic Pipe Production Line barrel and Plastic Pipe Production Line screw to stay in the normal fit gap, for processing preparation.