METHOD AND AUTOMATIC BRAZING APPARATUS FOR FLAME BRAZING CONTROL IN COPPER-ALUMINUM WELDING
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United States of America Patent
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May 30, 2024
app pub date -
Dec 30, 2022
filing date -
Feb 21, 2022
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Abstract
Disclosed is a flame brazing control method for copper-aluminum welding, characterized by using a flame generated from the combustion of natural gas, air and oxygen as the heat source, the molar flow ratio of natural gas, air and oxygen is controlled within a range of 1:10-22:0.3-2.2. Further disclosed is an automatic brazing apparatus for copper-aluminum welding, characterized by using a flame generated from the combustion of natural gas, air and oxygen as the heat source, includes three gas delivery systems for natural gas, air and oxygen, a mixer for mixing the three gas, and integrated flow controllers for the electromagnetic valves and flow valves in the three gas delivery systems.
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