(1) First make the lap-welded longitudinal aluminum tube, and then make the inner and outer plastic tubes on the formed aluminum tube, which is called the lap joint production process
(2) First make the inner plastic tube, then make the butt-welded aluminum tube on it, and finally wrap the plastic layer on the outside, which is called the butt joint production process
The main advantages of PPR aluminum-plastic composite pipe:
In the past, most of the waterway pipes used galvanized pipes, aluminum-plastic pipes, copper pipes and other materials for waterway connection. However, these materials have the following disadvantages in construction: some galvanized pipes have blisters, and the inner wall is easy to rust. The construction is more complicated and the degree of difficulty is greater; the wall of the aluminum-plastic pipe is thin, and the bending joint is usually not used when bending, and the radius is increased by random bending.
There is no standard for the pipe wall, and it is getting thinner and thinner. Generally, PPR aluminum-plastic composite pipes are used to replace traditional pipes, which not only have the pressure resistance of metal pipes, but also have the resistance of plastic pipes. The main advantages of PPR aluminum-plastic composite pipe are: it has the same strength as metal pipe, easy to bend and does not rebound; high temperature resistance, high pressure resistance, corrosion resistance; Good thermal insulation performance; due to the use of aluminum core, it can completely isolate oxygen, inhibit bacterial reproduction, light weight, easy processing, and the service life can reach more than long-term durability according to standards.
