1 min read

Welding Preheating with Induction for Rapid Heating & Reduced Time

weld-pre-heating-with-induction

A company that specializes in flow control solutions turned to THE LAB at Ambrell to heat a steel valve to 400 °F (204 °C) for a welding preheating application. This process is new to the customer and they turned to induction because of the potential for rapid heating and reduced cycle times. 

THE LAB determined that an EKOHEAT® 10 kW induction heating system would be right for this welding preheating application, and they designed a multiple-turn internal bore helical coil for the application. Temperature indicating paint was applied to the part and heating began. It was observed that the depth to which the coil was inserted was critical to heating both above and below the weld joint. For this application, heating can occur with a single coil in less than five minutes. 

 

Using induction for preheating results in significantly faster time-to-temperature for users. On some applications with thicker parts, it can literally shave hours from the cycle time. Heating uniformity, quality and safety are among the other reasons companies are increasingly looking at induction heating for this application. 

If you have a heating application you'd like tested, learn about complimentary applications testing from THE LAB at Ambrell. 

More Heating Application Notes

The Art and Science of Coil Manufacturing at Ambrell

The Art and Science of Coil Manufacturing at Ambrell

The coil is a critical component of any induction heating solution. Ambrell designs coils for its own systems and can also manufacture coils for...

Read More
Induction Heating a Tube to Heat Gases

Induction Heating a Tube to Heat Gases

Objective A client needed to heat an Inconel tube in order to heat gases. Induction heating can be a good option for heating fluids transported in...

Read More
Induction Brazing a Copper Tube and Brass Fitting Assembly

Induction Brazing a Copper Tube and Brass Fitting Assembly

Objective A company had been using a torch for a brazing application involving a copper tube and brass fitting, but they contacted THE LAB at Ambrell...

Read More