CN2566086Y

CN2566086Y - Middle cellular aluminium-cladding plastic pipe

Info

Publication number: CN2566086Y
Application number: CN 02276396
Authority: CN
Inventors: 李曦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-04
Filing date: 2002-09-04
Publication date: 2003-08-13
Anticipated expiration: 2012-09-04

Abstract

The utility model relates to a middle layer hole net aluminium-cladding plastic pipe, which has the structure that the inner layer plastic raw material and the outer layer plastic raw material are fused together with each other through a meshed middle aluminum layer, three layers of materials are tightly combined together internally, and a middle aluminum layer effectively suppresses thermal expansion of the inner and the outer plastics. The middle layer hole net aluminium-cladding plastic pipe not only has the advantages of all plastic pipes, but also solves the problem of excessive thermal expansion of plastic pipes, so that the utility model is a novel composite pipe which has the advantages of corrosion resistance, thermal insulation, heat preservation, no pollution, high intensity, good toughness, no obvious heat expansion and cold contraction phenomena and no peeling.

Description

Middle level cellular aluminium-cladding plastic cement pipe

Affiliated field: the utility model relates to plumbing and gas pipeline technical field, particularly a kind of middle level cellular aluminium-cladding plastic cement pipe.

Background technique: at present, plastic cement plumbing and distribution pressure pipe, be called for short the plastic cement pressure tube, civil building and municipal association area have been widely used in, relative conventional rigid pipeline, advantages such as galvanized pipe, steel pipe, cement pipe etc. relatively, it has, and cost is low, easy for installation, corrosion-resistant, long service life, in light weight, good toughness, in many applications, rigid conduit has been the gesture of replacement.

Mainly contain PP-R, HDPE, aluminium-plastic composite pipe, hole pattern Steel Skeleton HDPE pipe, skin and cover aluminum pipe, UPVC pipe, common middle level and cover aluminum pipe etc. in the plastic cement pressure tube, these plastic cement pipelines also have their shortcoming except having above advantage.A problem that always troubles industry is that plastic cement pressure piping thermal linear expansion coefficient is big, and promptly the longitudinal tensile strain amplitude changes with the big or small proportional example of the temperature difference.The consequence that this shortcoming directly causes is: when the water temperature of carrying changes, because pipe ends is all fixed, do not have the space of compensation, pipelines such as PP-R, HDPE influence construction quality owing to bends takes place in thermal expansion; In addition, aluminium-plastic composite pipe, cover aluminum pipe etc., can take place to peel off between plastic layer and the aluminium lamination, cause Accident due to quality owing to mould different with the thermal expansion coefficient of aluminium.

Summary of the invention: at the above-mentioned shortcoming of plastic cement pipeline, the utility model provides a kind of middle level cellular aluminium-cladding plastic cement pipe, and it is a kind of plastic clip aluminium lamination multiple tube, has both had the advantage of all plastic cement pipelines, has solved the excessive problem of plastic cement thermal expansion of pipeline again.

The middle level cellular aluminium-cladding plastic cement pipe that the utility model proposes is by in perforated with inside and outside layer plastic material

Between aluminium lamination merge mutually.

But described plastic cement pipe cross section is circular, square plastic cement pipe fitting.

The utility model provides covers the plastic-aluminum plastic pipe, can directly use original plastic-aluminum pipe production line during production, on the conventional aluminium leather material, make the hole in advance, during by pipe production line, hole pattern aluminium skin both sides plastic material of the same type can merge mutually by the eyelet on the aluminium skin, and complete Bao Rong gets up with the aluminium skin, thereby plastic-aluminum is really combined together.Utilize the robustness of aluminium, thoroughly suppressed the thermal expansion character of plastic material with physical method.Thereby become the NEW TYPE OF COMPOSITE pipeline that a kind of corrosion-resistant, heat-insulation and heat-preservation, pollution-free, ne-leakage, intensity height, good toughness, nothing obviously expand with heat and contract with cold phenomenon, do not peel off.

Description of drawings:

Fig. 1 is a profile schematic representation of the present utility model.

Fig. 2 is a cross-section structure of the present utility model.

Embodiment: 1 is the internal layer plastic layer; 2 for the middle alclad that hole pattern is arranged, and is equipped with eyelet on this aluminium lamination; 3 is outer plastic layer.

As can be seen from Figure, inside and outside two-layer plastic material merges mutually by the hole on the middle aluminium lamination, three layers of material in inside promptly closely Bao Rong get up, middle aluminium lamination has effectively suppressed the thermal expansion of internal and external layer plastic cement.

The product that the utility model provides still adopts the traditional thermofusible spigot Placement of plastic cement pressure piping in use, in full accord with the traditional operation process in actual applications, be very easy to the user, and have the 70 year working life the same with traditional plastic cement pressure piping.It will become the leading tubing in industry from now on and the civil building.

Claims

1, a kind of middle level cellular aluminium-cladding plastic cement pipe is characterized in that: inside and outside layer plastic layer merges mutually by aluminium lamination in the middle of perforated.

2, plastic cement pipe according to claim 1 is characterized in that: but cross section is circular, square middle level cellular aluminium-cladding plastic cement pipe fitting.