When it comes to copper brazing, the temperature of your furnace is crucial. The optimal temperature for copper brazing in a furnace is usually between 1,100 and 1,500℉. However, this temperature can vary depending on the specific copper alloy you are working with.
What Temperature Should a Copper Brazing Furnace Be? (7 Key Points)
1. Initial Furnace Preparation
Before brazing copper, the furnace atmosphere should be slightly positive when using hydrogen. This helps prevent contamination.
2. Evacuation Process
The furnace is first evacuated to a low pressure of 10-2 to 10-4 mbar (10-2 to 10-4 Torr) to remove residual air.
3. Preheating Stage
The temperature is then raised to approximately 955°C (1750°F) to allow outgassing and remove any surface contamination.
4. Brazing Temperature
The furnace is heated to the brazing temperature, which is normally 1100–1120°C (2000–2050°F), under an inert-gas partial pressure up to 1 mbar (0.75 Torr) to inhibit evaporation of the copper.
5. Gradual Temperature Increase
The furnace temperature should be gradually increased to the brazing temperature, usually between 500°C and 1200°C, to ensure proper heat distribution and minimize thermal stresses.
6. Maintaining the Brazing Temperature
The brazing temperature should be maintained for a specified amount of time to allow the filler metal to melt, flow, and wet the base metals, creating a strong joint.
7. Cooling Process
After the brazing process is complete, the furnace should be slowly cooled to room temperature to minimize thermal stress and distortion.
Continue Exploring, Consult Our Experts
Looking for high-quality laboratory equipment for copper brazing? Look no further than KINTEK! Our range of furnaces and brazing equipment ensures optimal temperature control and atmosphere for efficient and precise brazing. Trust KINTEK for all your copper brazing needs. Contact us today for a quote!
