Copper tube refers to a copper material made by pressing or drawing copper. Due to its strong and wear-resistant properties, copper pipes are often used in the electrical, industrial, and construction industries. Copper pipes can be produced through methods such as extrusion, continuous casting and rolling, and upward drawing. Copper pipes are important raw materials for the processing and manufacturing of refrigeration equipment, and they have two main uses:
Manufacturing heat exchangers;
Produce connecting pipes and fittings.
1, Classification of copper pipes
1. Air conditioning copper pipes can be roughly divided into ordinary air conditioning copper pipes and degreased air conditioning copper pipes:
Ordinary air conditioning: The thickness is generally 0.5mm for pipes 2 and 3, 0.6mm for pipes 4, and 0.7mm for pipes 5 and 6. Mainly used for R22.
Degreasing air conditioning copper tube: also known as "degreasing air conditioning copper tube", with 2 and 3 tubes being 0.8mm thick, and 4, 5, and 6 tubes being 1.0mm thick. Mainly used for refrigerants such as R410.
2. Specific classification of copper pipe materials for air conditioning:
Oxygen free copper: including high-purity oxygen free copper (TU0, TU1, TU2) and phosphorus deoxidized copper (TUP, TP1, TP2, etc.), characterized by extremely low oxygen content and residual small amounts of deoxidizer in deoxidized copper;
Aerobic copper: mainly includes ordinary pure copper (T1, T2, T3, etc.) and tough copper, characterized by high oxygen content;
Special copper: There are arsenic copper, silver copper, tellurium copper, etc., which are characterized by the addition of different trace alloying elements to improve the overall performance of the material.
Formula for calculating the weight and length of TP2 copper pipes for air conditioning:
Weight per meter (kg/m)=0.02796 × Wall thickness (mm) × (Outer diameter wall thickness) (mm)
Length per kilogram (m/kg)=1/weight per meter
