Copper Aluminum Tube Assembly is one of the refrigerator parts. We adopt butt-welding technology and get an authorized patent No:10-1925119. No leak risk over 8 years above. working pressure in R410 and R 32 refrigerant.
Refrigerator parts, copper aluminum tube assembly used for freezer system, OEM tube fabrication as your drawings. we use butt-welding technology to keep “o” leak. our patent NO: 10-1925119.
Aluminum-copper butt welding with electricity, we get patent from the Chinese government on the 2002 year.
As we know aluminum melting point 660 ℃, Copper melting point 1083.4℃
How to good welded copper and aluminum tube?
Our butt welding technique balance temperature and make butt-welding on temperature 570℃, aluminum and copper stay in half-solid condition, that is the best temperature for aluminum and copper butt-welding by electrical pulse strong strength.
We will contact you within 1 working day, please pay attention to the email with the suffix “@granahvac.com”.