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Tips for identifying the advantages and disadvantages of aluminum tubes

source:[seo:selfurl]    release time : 2018-11-18 11:37

First, the surface of the aluminum tube and the inner and outer surface layers are observed and hand-touched.
a. The genuine aluminum tube is made of high-quality raw materials, the process precision is high, the surface layer and the inner layer feel smooth and smooth, and there is no speckle; and the fake and inferior aluminum-plastic pipe products are relatively poor due to work-saving.
b. The thickness of the genuine aluminum-plastic pipe mouth and aluminum strip is even, the aluminum pipe is tightly combined, and the quality and thickness of the pipe and the aluminum strip can reach the relevant national standards; while the counterfeit products have larger wall thickness deviation and thinner aluminum sheets. And the gap between the aluminum pipe joints is large.
c. The surface of genuine aluminum pipe is generally printed with imported code, its writing is clear, and the general labeling of trademark identification, manufacturer, address and even telephone is clear and true; the surface of counterfeit and inferior aluminum pipe is printed by ordinary printing machine. The writing is ambiguous, and its manufacturers, logos, etc. are generally unknown or not marked.
1, burning
Use an open flame to ignite the pipe. The true aluminum-plastic pipe is made by ultrasonic lap welding or hydrogen arc welding, and its interface is quite tight. After the open flame ignites the pipe, the aluminum piece will not fall off; and the fake and inferior aluminum-plastic pipe and other combination pipe The aluminum sheet is not welded, the interface is not tight, and the aluminum sheet will fall off after ignition.
2, cut
The aluminum tube was spirally cut into a strip shape by pipe shear, and the aluminum tube layer and the PE layer were peeled off by hand. The true aluminum-plastic pipe is a 5-layer composite structure. The aluminum layer and the PE layer are closely attached. The aluminum pipe layer and the PE layer are not easily separated by hand. The fake and inferior products are not tightly bonded due to the cutting of the aluminum layer and the PE layer. Very easy to peel off.
3, measurement
The pressure resistance of the aluminum tube is detected by a small pressure pump. The pressure of the blasting of the true aluminum-plastic pipe is high, and generally can meet or exceed the requirements of the relevant national regulations; while the pressure inside the blasting of the counterfeit product is generally low or even low, it is difficult to meet the requirements of use.


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