High Frequency Post Weld Heat Treatment Equipment

Brief introduction of Canroon high frequency post weld heat treatment equipment:

Induction post weld heat treatment machine is designed and manufactured by Canroon fused for pipes PWHT/post weld heat treatment (DHT dehydrogenation heat treatment, ISR intermediate stress relief), widely applied and welcomed by oil&gas piping, offshore platform construction, and power plant construction & repair.

For PWHT, the suitable pipe size with Diameter of 200-1600mm and Thickness of 25-120mm, heating temperature will reach 788℃ at most.

Besides, application of welding preheat, joint anti-corrosion coating and shrink fitting are also very efficient.

Overall pictures of Canroon high frequency post weld heat treatment equipment:

Technical parameters of high frequency post weld heat treatment equipment:

Application details of high frequency post weld heat treatment equipment:

our induction heating equipment can be used in offshore platform, oil & gas pipeline construction, power station, etc

1, post weld heat treatment for steel pipes.






2, post weld heat treatment for stainless steel pipes.



PWHT curve:

Features of high frequency post weld heat treatment equipment:

• precise control

• The heat is induced within the part itself by alternating electrical current, thus uniform temperature throughout the heating zone is realized.

  This uniquely energy-efficient process converts up to 90% of the expended energy into useful heat, and time-to-temperature is faster than conventional processes due to the method of applying heat, reducing cycle time.

• Uniform Heating

• Once fault occurs, CR2000 will act with display of fault code, which was detailed explained in the manual book.

• High Efficiency

• Due to modular design, the maintance will be easy and low-cost.

• Self Diagnosis

• Fault codes will display and be recorded for reference, and system will respond with protection action like shutdown once fault occurs such as open-loop output or short out.

• Easy Maintenenace

• The interface offers two basic control mode to choose including temperature control and power control. The former one has 4 modes of preheat, bake-out, PWHT, custom. The last one has 2 modes ofconstant power and power VS time. Each mode offers different parameters to set. Thus brings the benefit of wide applicability and precise control.

• Fault Record

• We have display board to show working parameters, and temperature recorder can feedback PWHT curve, you can print it.

Accessories of high frequency post weld heat treatment equipment:

We offer multiple accessaries like thermocouple, thermocouple welding machine, digital temperature-recorder, remote switchgear, output extension cable, insulation blanket, etc. Complete solution saves your time and ensures you to start work soon after received our delivery.

Company information:

Canroon is a remarkable energy saving solutions provider, whose products and solutions are widely used in industries including shipbuilding, aviation, automobile, metallurgy, chemical engineering, petroleum pipeline construction, new materials, new energy, etc.

Canroon has a professional R&D team dedicated to convert wisdom into leading products and services to meet needs of different customers, and create sustaining value.

By virtue of comprehensive advantages in the field of power electronics, and sticking to the idea of energy-saving and emission reduction, we have been offering reliable and environmental friendly engineering solutions to maintain a leading edge.

"We create, we share". We will join our partners to work with innovation and provide users with reliable products and advanced solutions, with a vision of better harmony between mankind and nature.