Due to the significant recovery of Japanese demand after the earthquake and the delay of some June delivery to July, Chinese aluminum exports to Japan continued to rise in July.
However, market analysts believe that as most Japanese buyers have already completed procurement of materials in June and July, exports are likely to decline in August. Exports to Japan accounted for 48.9% of the total 64,161 tons of aluminum alloy exports.
HDPE strip spiral reinforced Corrugated Pipe refers to high density polyethylene (PE) as the matrix, with surface coated steel strip of adhesive resin molding for waveform as the main support structure, and wrapped with polyethylene material composite double-wall spiral corrugated pipe of whole called steel belt to enhance PE spiral corrugated pipe.
In this paper, the composite PE material of u-shaped steel belt is adopted to improve the ring stiffness without increasing the cost, and the weight of the tube is greatly improved than that of the wound tube and crack-tube under the same weight.
The composite of each layer is carried out in the plastic melting state;It is completely different from the winding tube (hollow wall tube), so the layers are completely bonded and the fastness is very high.
The steel belt surface is specially pretreatment to enhance the corrosion resistance of the steel and the adhesion of the steel and plastic to improve the peeling strength.
The overall structure of the pipe is solid and reliable.Due to the use of special materials and process, the adhesion of steel plate and PE material is solved, so that the service life of the pipeline is the same as that of pure Plastic Pipe, which is more than 50 years.
It can be used with electric hot melt connection, thermal shrinkage zone connection, internal and external extrusion welding or multiple connection combinations.Reliable connections can lead to zero leakage.
The performance characteristics of
1. The inner and outer wall of the pipe fittings of PE spiral corrugated pipe fittings are smooth and the friction coefficient is small.
2. The steel belt reinforced PE spiral corrugated pipe with high compressive performance: it can withstand the pressure of 750N, so it can be installed in the concrete and can not be crushed.
3, steel belt to enhance PE spiral corrugated pipe resistance to impact and heat resistant performance is good, the casing in the process of concrete pouring, normal tamping won't hit the burst, and by condensation heat effect in the process of construction of the same soft.
4, steel belt to enhance PE spiral corrugated pipe moisture resistant to acid and alkali, moisture can excellent acid-proof alkaline, will not rust, each joint by the regulation with PVC adhesive glue, waterproof can seep into the tube, moisture-proof effect is better.
5. The steel belt enhances PE spiral corrugated pipe from the fire, and the flame will not spread along the pipe.
6. The casing has excellent insulating properties. In the submerged condition, AC2000V and 50Hz are not worn.In case of accidental electric shock, the international trend towards insulation is better than grounding, while PVC sleeve is satisfying this requirement.
7. Due to the addition of special additives in the steel belt reinforced PE spiral bellows, the odor can not be emitted and the insect bite and bite destruction can be attracted.
Connection mode
1. Extrusion welding connection of hot melt belt
2. Clamp (hav sleeve) connection
3. Thermal contraction tube (tape) connection
Apply to
Municipal engineering: buried drainage and sewage pipes;
Road works: the infiltration and drainage of railway and expressway;
Industry: widely used in industrial areas of sewage pipes;
Construction works: building rain water pipes, underground drains, sewage pipes, ventilation pipes, etc.Landfill sewage collection tube;
Large port and wharf works: large airport, port, wharf engineering drainage, Sewage Pipe and so on;
Sports venues: seepage drainage pipes in sports venues such as golf courses and football fields;
Water conservancy projects: water supply pipes, irrigation pipes and hydro-power stations; water supply and drainage;
Mines: ventilation, air supply, drainage, mud pipes;
Communication tube: railway, highway communication, communication cable and cable protection pipe;
Water storage system: water storage system that intercepts slow water flow;
Agricultural engineering: farmland, orchards, tea plantations and forest zones;Sea pipe
Burying Carbon Helical Pipe,Non-Corrosive Helical Pipe,Anti-Seismic Helical Pipe,Carbon Screw Pipe
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