Good aluminium tube identification tips

Chinese aluminum tube market prospect is very wide, it also brings bad atmosphere to the entire market, in order to avoid consumer loss, today we taught you a simple four words identification of official tubes and the defective.

aluminium round tube

I. by look and touch

The surface of aluminum tube were identified through the words and internal and external surface observation and touch.

1, authentic aluminum tube surface words generally adopt imported printing printing, the handwriting is clear, and the trademark, manufacturer, address and telephone general label is clear, true; fake aluminum tube surface words using ordinary printing presses, illegible, the factory general is unknown or not marked logo.

2, good aluminium tube using high quality raw materials production, the processing precision is high, the surface and the inner feeling smoothly, smooth without clutter; while the inferior aluminium tube products due to shoddy work relatively poor.

3, authentic aluminum tubes and aluminum with uniform thickness, tube are combined tightly, quality and thickness of the tube and aluminum strip can reach the national standard; and bad and inferior product wall thickness deviation a lot, aluminum sheet is thin, and the tube joint clearance.

II, by burn

 

Using bright flame ignition the aluminium tube. good aluminum-plastic tube by ultrasonic welding or by hydrogen arc welding butt welding and its interface mainly quite closely, ignited the fire tube aluminum sheet will not appear off phenomenon; and the aluminum tubes of counterfeit and other composite pipe because of the aluminum plate without welding, the interface is not close, after light will appear after the aluminum sheet off phenomenon.

III, by shear

By shear of the aluminium tube in the shape of a spiral cut into strip, hand stripping aluminum layer and the PE layer. So the aluminum plastic pipe as the 5 layer composite structure, the aluminum layer and the PE layer with more closely, from hand stripping aluminum layer and the PE layer is not easy; and false and inferior product due to shoddy work, the aluminum layer and the PE layer does not close fitting, easy to peel off.

IV, by test

Pressure performance with small pressure pump detection tube. Pressure blasting is high of good aluminum-plastic pipe, general can meet or exceed the national standards requirements; but the blasting pressure is low and difficult to meet the standard of shoddy products .


Post time: May-16-2018