HDPE double wall corrugated pipe Appearance, standard and Application
Black. Implementation of GB / T1942.1-2004 "buried HDPE structural wall pipeline system section 1; polyethylene double wall corrugated pipe", the elastic ring meet the requirements of HG / T3091-2000. Products are widely used in urban drainage, sewage engineering, agricultural irrigation, drip irrigation, water-saving irrigation projects, drainage, sand control projects.
HDPE double wall corrugated pipe Specification
1. N4(ID 200 mm.300 mm.400 mm.500 mm.600 mm.800 mm)
2. N8 (ID 200 mm.300 mm.400 mm.500 mm.600 mm.800 mm)
HDPE double wall corrugated pipe Features
n Unique structure, high impact strength ;
n Smooth inner wall,small water flow resistant.large fluid flow;
n Easy to connect,good joint seal,No infiltration;
n Extremely light weight ,hence easy to handle and reduce cost;
n More than 50 years` service life in buried condition.
n High-density polyethylene is a hydrocarbon polymer, non-polar, high acid and alkali corrosion resistance.
n Eco-environment materials, non-toxic, non-corrosive, non-scaling, recyclable;
n Temperature range,-60℃ the pipeline no breakage, the maximum temperature of the transmission -medium is 60℃
n Comprehensive project cost basically same as the concrete pipe, low operating costs
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HDPE Double Wall Corrugated Pipe
The country has begun to lay out the high-end tractor market with independent property rights.
[China Agricultural Machinery Industry News] "Made in China 2025" agricultural equipment field technology roadmap for the next 10 years of tractor development pointed out the direction: new tractors 200 horsepower and above, 8 speed and above power shift tractor, main speed electronic control, CVT stepless variable speed tractor with main clutch electro-hydraulic control. Key components such as engine, transmission system and control system are self-supporting domestically.
The country has begun to lay out the tractor market with independent property rights.
At the same time, the market share and the no-failure rate of the tractor at the corresponding time nodes are also clear: in 2020, the market share of large tractors with a capacity of more than 200 horsepower is 30%, and the average time between failures of tractors is increased to 250 hours; in 2025, The market share of large tractor products above 200 horsepower is 60%. The average time between failures of the tractor is 350 hours.
The roadmap also provides clear indicators for tractor parts, performance, and technology: non-road country IV emissions, torque reserve of more than 35%, power output interface of 3 or more, noise power level not higher than 114 decibels, electronic control system, after The processing system is self-supporting domestically. Tractor intelligent control operation, navigation and positioning, object tracking, positioning accuracy is not less than centimeter level; break through the reliability test methods, detection and control technologies of tractor key products, and realize the application of active reliability design technology in service environment.
It can be seen that the country has begun to lay out the tractor market with independent property rights. It is possible for agricultural machinery manufacturers that can seize this opportunity to obtain more development opportunities and policy inclinations, otherwise they will be “shuffledâ€. For example, the agricultural machinery emission standard was upgraded to “National Threeâ€. On April 1st of the second year, the “National Second†machine could not be sold. However, during the National Agricultural Machinery Exhibition at the end of October this year, the production lines of many enterprises have not been debugged. It is not necessary to say that the supporting "National Three" machine is in mass production. This dangerous manufacturing management mode is likely to bring disaster to the enterprise; some second- and third-line brand tractor manufacturers even even the "National Three" machine The stability has not been tested and run-in, and there is no guarantee for the quality of the whole machine in 2016. It will undoubtedly be destined to be eliminated by the market.
(Original title: China's tractor research direction and goals in the next 10 years)