CN101871545A

CN101871545A - Steel-plastic (PE: polyethylene) solid-wall thread drainage tube

Info

Publication number: CN101871545A
Application number: CN200910071855A
Authority: CN
Inventors: 杨晶明; 杨显
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-22
Filing date: 2009-04-22
Publication date: 2010-10-27

Abstract

The invention relates to a steel-plastic (PE: polyethylene) solid-wall thread drainage tube which takes cold-rolled steel belt as a steel skeleton and a thermoplastic polyethylene as a raw material. The inner layer and the outer layer of the tube are compounded with polyethylene resin. The drainage tube with the steel-plastic structure overcomes the disadvantages that a steel tube resists pressure but does not resist corrosion and a plastic tube resists corrosion but does not resist pressure and meanwhile has the rigidity of the steel tube and the corrosion resistance of the plastic tube. The steel-plastic (PE) solid-wall thread drainage tube adopts a gomphosis connecting mode and a polyethylene (PE) hot melting connecting mode among steel skeletons in the production technology, thereby enhancing the strength of the tube and effectively avoiding breakage generated on the tube because of misoperation carried out in the load and transport and construction processes of the tube.

Description

Steel is moulded (PE) solid-wall thread drainage tube material

Steel is moulded (PE) solid-wall thread drainage tube material also can be referred to as metal enhancing polyethylene (PE) thread drainage tube material.It is to be the be combined with each other drainage pipe of a kind of steel-plastic structure of making of skeleton and polyethylene (PE) with steel band, and it is widely used in municipal drainage, drainage project, agriculture drinking-water, water saving, engineering irrigation, long-distance water diversion project.Simultaneously again because steel is moulded the draining of (PE) solid-wall thread is to be that liner supports and played reinforing function with the metal frame, its ring stiffness is greatly improved, so can be applied to highway, railway, culvert, cable communication, pipe-networks engineering again, because polyethylene has anti-corrosion function, therefore can also be applied in the chemical anticorrosion engineering again.In polyethylene resin, add an amount of anti-static agent and fire retardant in addition, promptly can be made into special-purpose tubing under the coal mine, be used for down-hole firedamp drainage, draining etc.

At present, worldwide, the plastic tube development is very fast, and it is just constantly replacing the tubing of various metal pipes and other traditional material in every field.Plastic tube is used comparatively universal on engineering, and kind, kind, model are a lot, and the user can select various plastic tubes according to the needs of oneself.Present plastic tube both domestic and external is still taken product as the leading factor with PVC (PVC) and polyethylene (PE) tubing, though plastic tube, just captured building water supply and drainage market rapidly with its distinctive advantage, but I am through long-term observation and investigate discovery, the making of pure-plastics pipe also has 2 deficiencys, one: do the bore of plastic tube big or make big ring stiffness tubing if want, the pipe thickness of plastic tube just must be thickeied, waste valuable raw materials for plastics production, increased cost of production.Its two, if adopt at present traditional extrusion way to produce large-bore plastics tubing, its machinery equipment is very complicated and cost an arm and a leg, generally all millions of units of this machinery equipment even up to ten million unit increase cost of investment and manufacturing expense.So it is imperative to invent a kind of novel tube, this novel tube should be when producing heavy caliber, big ring stiffness tubing, must possess neither wastes raw material, reduces the machinery equipment investment, reduces manufacture cost, can guarantee all advantages that plastic tube possesses again, so steel of the present invention is moulded (PE) solid-wall thread drainage tube material and arisen at the historic moment.

Steel is moulded the making method and the step of (PE) solid-wall thread drainage tube material:

The first step: at first will be through the steel band of hot galvanizing, with plastic extruder each face coating layer of polyethylene adhering resin of steel band, its applied thickness make steel band reach oxygen barrier, waterproof, not after the rustless requirement of burn into, through winder that its rolling is standby.

Second step: the standby steel band of rolling, be similar to after the shaped steel of " U " shape through Lightweight Steel Shape is rolling, pass through Wiring apparatus again, the mode that adopts polyethylene (PE) fusion is twined shaped steel to be combined with each other and is made steel and mould (PE) solid-wall thread drainage tube material

Because it is to be raw material with cold rolled steel on behalf of Steel Skeleton and thermoplastic polyethylene that steel is moulded (PE) solid-wall thread drainage tube material, the all compound polyethylene resin of having gone up of the internal and external layer of tubing, the waste pipe of this steel-plastic structure, overcome the withstand voltage not corrosion-resistant and corrosion-resistant not withstand voltage shortcoming of plastic tube of steel pipe, had the rigidity of steel pipe and the corrosion resistance of plastic tube simultaneously again.

Again because steel is moulded (PE) solid-wall thread drainage tube material, the Placement that combines at the Placement that has adopted inserted type between the Steel Skeleton on the production technology and polyethylene (PE) hot melt, strengthened the intensity of tubing, avoided effectively tubing in shipment and work progress misoperation and tubing is produced rupture.

It is as follows that steel is moulded the concrete characteristics of (PE) solid-wall thread drainage tube material:

1, the intensity height-owing to the effect that the steel band skeleton strengthens, impact resistance and dimensional stability that steel is moulded (PE) solid-wall thread drainage tube material are better than any overall plastic tubing.

2, decay resistance and wear-resisting property good-steel moulds (PE) solid-wall thread drainage tube material, be that to select high density polyethylene (HDPE) for use be raw material, make steel mould tubing and had the wear-resisting property same with full polyvinyl piping materials, the high density polyethylene (HDPE) chemical property is highly stable, the corrosion of anti-most of chemical mediators.

3, inner wall smooth medium transport resistance little-steel moulds (PE) solid-wall thread drainage tube material, inwall is smooth smooth, the conveying capacity under the equal conditions is than steel pipe, materials used for cement pipes height.

4, sanitation performance good-steel moulds (PE) solid-wall thread drainage tube material, adopts fully to meet the special material for tube PE80 of sanitary standard, the polyethylene resin of PE100 level, effectively avoids the pollution of water in course of conveying.

5, prevent that stress is concentrated, Safety performance is reliable-and steel moulds (PE) solid-wall thread drainage tube material, be that steel band, skeleton are coated by polyethylene fully and pass through canoe, make it into as a whole, prevented the stress concentration phenomenon, therefore to mould rigidity, the impact resistance spy of tubing good for steel, and can effectively stop the crackle and the appearance of crackle at a slow speed fast, and pipe-line system is safe and reliable.

6, manufacturing process is simple, and pressure rating is easy to adjust-and steel moulds (PE) solid-wall thread drainage tube material, in working process, only need to adjust the thickness of cold-rolled strip, just can produce the tubing of various different pressures grades easily, technology is simple, the adjustment workload is little, and speed is fast.

7, trackability strong-have the steel band skeleton to exist in (PE) solid-wall thread drainage tube material because steel is moulded, have stronger trackability than pure polyethylene pipe.Thereby pipeline needn't be laid in addition, and trace labelling and protection mark can utilize metal detector to seek track, avoids effectively excavate destroying, for the safe operation of pipeline provides assurance.

8, make the few instant effect of tubing equipment investment, can producing heavy caliber pipe-steel easily, to mould the production technology of (PE) solid-wall thread drainage tube material be to adopt spiral winding form to produce, fairly simple, little investment, and can produce the different heavy caliber pipes of all size very easily, and the equipment more complicated of the pure polyethylene supply pipe of traditional mode of production and other plastic steel composite pipe material, the price comparison costliness, the equipment of particularly producing heavy caliber pipe moves and then needs millions of units even up to ten million unit.

9, save raw material, improve conveyance power of water-steel and mould (PE) solid-wall thread drainage tube material, owing to there is steel band to make skeleton, strengthen the intensity of tubing, thereby can effectively save nearly 1/2 polyethylene materials, also because steel is moulded the thickness of pipe wall of supply pipe to be reduced a lot, effectively the area increasing is blocked in circulation, has improved conveyance power of water simultaneously.

10, easy to connect-steel is moulded (PE) solid-wall thread drainage tube material, can select Placement according to the different needs of engineering.

In sum, steel is moulded (PE) solid-wall thread drainage tube material, no matter is to compare with traditional tubing, still more all has extremely great advantage with pure polyvinyl piping materials, believes in the near future and can be widelyd popularize.

Description of drawings:

Accompanying drawing is the sectional drawing that steel is moulded (PE) solid-wall thread drainage tube equipment structure figure.

Claims

1. steel is moulded the making method and the step of (PE) solid-wall thread drainage tube material:

Second step: the standby steel band of rolling, be similar to after the shaped steel of " U " shape through Lightweight Steel Shape is rolling, pass through Wiring apparatus again, the mode that adopts polyethylene (PE) fusion is twined shaped steel to be combined with each other and is made steel and mould (PE) real wall helical corrugation drainage pipe

2. steel is moulded (PE) solid-wall thread drainage tube material, in Placement that has adopted mutual inserted type between the Steel Skeleton on the production technology and the Placement that polyethylene (PE) hot melt combines, has strengthened tubing intensity.