Krah Pipe
The performance characteristics of the HDPE winding structure wall tube are as follows: Krah Pipe,Sewer Corrugated Krah Pipe,Hdpe Plastic Krah Pipe,Hdpe Corrugated Krah Pipe Hebei Taiwo Plastic Pipe Co.,Ltd , https://www.taiwocarattube.com
1. The hot state of winding forming welding joint quality is high.
The flat material belt and U-shaped material belt extruded from the mouth die of the extruder in the melting state are evenly wound on the heated roller die according to the predetermined position, which ensures the quality of the fusion joint of the structure wall tube. In particular, in the structural design, the melt joint of the flat material belt is covered by a polyethylene-coated supporting tube, which improves the overall resistance to the external pressure of the product.
2. Good connection quality.
The pipe connection with excellent installation performance adopts the
embedded electric fuse in the socket with the same material socket welding
connection technology. It can achieve zero leakage, ensuring the same life span of the pipeline system and the safety of operation. At the same time, because the product under the condition of the same application as other tubes light weight, and is easy to transport, construction is convenient and quick, and can reduce the construction cost, in the range of applications, without a concrete cushion layer and concrete jaasiel groove can directly apply the tube after qualified, basically, stay do under excavation, side tube, while backfilling, simplifies the construction procedures, shortening the time limit for a project. During the project acceptance, the closed-air test is used instead of the closed-water test, which not only speeds up the acceptance but also saves the complicated work and a lot of test costs in the closed-water test
3. Good flexibility
High-density polyethylene winding structural wall pipe has macro flexibility, and the micro pipe section has strong rigidity and overall resistance to external pressure.
when used under heavy load road surfaces, it can ensure the safety of traffic. Due tothe flexibility of the pipe, it can also reduce the damage loss of the pipe to the minimum in the event of an earthquake, uneven surface settlement, and other geological activities. These characteristics improve the seismic mitigation ability of public facilities.
4. HDPE can be recycled, The main raw material of winding structure wall pipe
is green environmental protection products, such as high-density polypropylene, which doesn`t have any toxicity. There is no dye in the production process. The used pipeline can be 100% recycled. It is a green product of environmental protection.
5. Corrosion resistance, aging resistance, and service life span can be up to 50
years.
High-density polyethylene has the ability to resist chemical corrosion and
erosion. Therefore, when the winding structure wall pipe is conveying corrosive fluid or laying in corrosive soil, it does not need anti-corrosion treatment, and its performance is much better than other pipes. The product in the design process, chooses a reasonable product structure form, to ensure the service life span of the plastic pipe is more than 50 years, and no maintenance is needed in the life span.
6. Tube inner wall roughness, large water transfer around the structure of the
wall tube. Product inner wall roughness N is about 0.010, so the transmission of fluid has lower friction, compared to other products such as cement pipe with a similar diameter the water transfer is greatly improved. Therefore, the smaller HDPE tube can replace the larger cement pipes. In application, under the same conditions, using a wall pipe winding structure can have better reliability compared to the traditional pipe material. The comprehensive benefit is obvious, especially in the narrow construction site, high building density, underground pipeline, complicated traffic busy roads, and acid soil.
Yuchai 4F overhead camshaft high-speed diesel engine developed successfully
Recently, the first 4F overhead camshaft of the electronically controlled Guotai 4 high-speed diesel engine developed on the basis of the 4F platform was successfully ignited in the laboratory of Yuchai Engineering Research Institute, signifying Yuchai’s new breakthrough in the light vehicle diesel engine sector. The industry’s leading technology advantage. It is understood that the YC4F overhead camshaft diesel engine application DCR high pressure common rail system development, the design of the use of overhead camshaft technology, so that the engine's calibration speed of 3800r/min or more, the power can be increased to 90kW or more. In addition, a set of cooling EGR system with ejector function has been carefully designed to improve the EGR rate and uniformity, and particle capture technology has been adopted in post-processing to ensure that the engine has reached the national 4 emission standard. These advanced technologies have been developed and applied. It is at the leading level in the current domestic similar light diesel engine.
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