Pipes and Properties Used in Cooling Systems
Updated: Oct 1, 2020
Copper pipes have wide usage areas especially in their installations such as cooling, heating, natural gas, and ice machines. On the other hand, apart from the installation, it is used in condenser and evaporator manufacturing, cooling, capillary pipes and heat exchangers in the cooling industry. It is used in the heating industry to manufacture various types of radiators, boilers, and heat exchangers.
Copper pipes have a wide usage area. If we list some of its features;
High thermal conductivity,
Soldering, brazing, and welding
High corrosion resistance,
Easy to be shaped,
High sealing property in joints,
Suitability for union type joints,
It is economical material and workmanship.
Copper pipes, which gather all of these features together, have become the basic pipe material of the systems used in home and commercial type refrigerators, air conditioning, and ice machines.
Before introducing the tools used in the processing of copper pipes, it will be useful to determine the method used in the joining technique. In the cooling industry, where different types of bonding techniques are developed, two main methods are widely used. These are the brazing technique and mechanically removable, partly brazed flare compression fittings.
In a joint to be made using heat energy, the soldering or welding technique can be selected by taking into account the structure of the material of the pipe or interconnecting element, the size of the joint surface and the pressure, temperature values at the place to be used.
One of the main differences between welding and soldering techniques is that there is no need for another binding metal to join the two metals used in welding. Metal pipe ends to be welded are melted after being heated up to a certain temperature point. The ends of the pipes that are in contact during melting are welded together and form a homogeneous, complete structure that the welding process is completed.
In the soldering technique, apart from the two metals to be joined, a third metal or metal alloy that melts at lower temperatures is needed. The melting temperature of the metal or metal alloy used as soldering wire in soldering is always lower than the melting temperature of the metals to be joined.
Another important difference between the soldering technique and welding technique is that two different metals can be safely combined in soldering. However, it is not possible to join two different metals in welding technique.
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