ppr pipe sizes in mm and inches

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FAQ

Aluminum foil tape insulation principle, why insulation?
It has the functions of heat insulation, waterproof, moisture-proof and so on. Its solar radiation absorption coefficient is very low, which can insulate most of the heat transfer.
Why should single core cable be armored with aluminium tape?
The current flowing in the three-phase three core cable in magnetic field, they produce offset each other, only a few of the unbalanced current magnetic field generated by an electric current in the metal will be released, so the heating field is not too serious, can use the steel jacket.
What gas is best for welding aluminum strip?
If you are using the gas, liquefied gas gun can be used separately burning liquefied petroleum gas welding, then burning gas is liquefied gas, but this time need to use low temperature welding wire, such as the WEWELDING M51 with WEWELDING M51-F solder welding wire.
Why is the president of aluminum strip mildew, will affect the performance of the transformer?
Aluminum with long mildew is actually aluminum is oxidized, the conductivity of alumina is lower than aluminum, so the resistance increases, resulting in increased contact surface heating, may endanger the insulation of the transformer will reduce the performance.
Would you like to buy a sensor for measuring the thickness of aluminum ribbon?
The thickness of the measuring aluminum sensor usually can use ZTMS08, there is still true
Aluminum tape spraying process, please?
Preheat. Generally without preheating. If the coating is thicker, the workpiece can be preheated to 180~20 degrees, which can increase the coating thickness(5) spraying. Under the high voltage electrostatic field, the powder gun is connected to the negative pole, and the workpiece is grounded (Zheng Ji) to form a circuit. The powder is ejected by the spray gun with the compressed air, that is, the negative charge is applied to the workpiece according to the principle of the opposite phase suction
Can the high frequency of aluminum band replace the high frequency of professional high-power loudspeaker box?
Can not be replaced, professional speakers generally use the horn loudspeaker, the sound directivity and speaker sensitivity are high, with a sound tweeter transient, clear, but the power and sensitivity of traditional voice Miss horn loudspeaker
Which brand of aluminium band for dry transformer?
Personal feeling 1070 should be better, because a higher proportion of content, electrical conductivity must be better, but at present, the market is indeed everyone's use.