Kerneinführung
The equipment of high-speed extrusion production line for PE PP-R/PP-RT/PP-B pipes adopts advanced technology, high-end configuration and high-torque and low-noise reducer, which fully embodies high quality and high quality.
1.Sucker: used to store, transport, stir and heat raw materials to ensure the uniformity and proper temperature of raw materials.
2.Extruder: The heated plastic raw material is sent to the extruder, and the screw pushes the raw material and melts it at high temperature, and then it is extruded through the die to form a tubular prototype.
3.Die and cooling system: The design of the die determines the diameter and wall thickness of the pipe, and the cooling system is used to quickly cool and solidify the molten plastic to obtain the required size and physical characteristics.
4.Tractor: used to draw thermoplastic pipe from the die to ensure its uniform diameter and keep the required size.
5.Cutting machine: cut the pipe according to the required length, and stack the pipe by conveyor belt or automatic system.
Wissenschaftspopularisierung
The following is a detailed introduction about PE, PP-R, PP-RT and PP-B pipes:
1.PE pipes
PE, that is, polyethylene, is a series of resins produced by various processes, with various structures, characteristics and uses. PE pipes include medium density polyethylene pipes and high density polyethylene pipes, which are divided into SDR11 and SDR17 series according to the wall thickness.
1.Performance characteristics:
-Environmental protection and sanitation: no heavy metal salt stabilizer is added during the processing of PE pipes, and the materials are non-toxic, have no scaling layer and do not breed bacteria, which well solves the problem of secondary pollution of urban drinking water.
-Corrosion resistance: except for a few strong oxidants, it can resist the corrosion of various chemical media without electrochemical corrosion.
-Long service life: PE pipes can be safely used for more than 50 years at rated temperature and pressure.
-Reliable connection: the welding process is simple, and the unique hot-melt butt welding technology ensures the safety and reliability of the interface because the strength of the interface is higher than that of the pipe body.
-Good flexibility: high impact strength, high elongation at break, strong earthquake and distortion resistance, suitable for areas with frequent crustal movements.
-Strong cold resistance: physical changes will not occur at -20℃, and it is suitable for cold regions.
Second, PP-R pipe
PP-R pipe, also known as type III polypropylene pipe, is a new plastic pipe product developed and applied in Europe in the early 1990s, which is made of random copolymer polypropylene by extrusion and injection molding.
Performance characteristics:
-Non-toxic and hygienic: the raw material molecules of PP-R are only carbon and hydrogen, and there are no harmful and toxic elements. It is hygienic and reliable, and can be used in pure drinking water systems.
-Thermal insulation and energy saving: the thermal conductivity of PP-R pipe is low, only 1/200 of that of steel pipe.
-Long service life: under the conditions of working temperature of 70℃ and working pressure of 1.0MPa, the service life can reach more than 50 years; The service life can reach more than 100 years at room temperature.
-Convenient installation: PP-R has good welding performance, and pipes and fittings can be connected by hot melting and electric melting, which is convenient to install and reliable in joint.
Third, PP-RT pipes
PP-RT, namely heat-resistant polyethylene, is a kind of non-crosslinked polyethylene that can be used in hot water pipes.
1.Performance characteristics:
-Light weight and easy transportation, installation and construction.
-Good flexibility. During construction, the pipe can be coiled and bent to reduce the usage of pipe fittings and the construction cost.
-Environmental protection, non-toxic, tasteless, and good sanitary performance.
-Good low temperature resistance, and can be used in winter under low temperature conditions.
-Good chemical resistance, no rust and long service life.
Fourth, PP-B pipe
PP-B (polybutylene) pipe is also a kind of plastic pipe, which has some properties similar to PP-R, such as non-toxicity, corrosion resistance and light weight. However, its specific performance characteristics and application fields may be different due to different production processes and raw materials.
Model DCS63 DCS110 DCS160 DCS250
Pipe diameter 20-63 20-110 40-160 50-250
Host model 60/38 60/40 60/40 75/38
Production capacity 200-400 300-500 400-500 500-650
Main motor power 90 110 110 160
