This post explains important manufacturing methods used to make transformer finwalls. These techniques improve their strength and heat efficiency, making transformers more reliable and effective.
#1 Corrugated Finwall Forming Process
The forming process commences with material preparation, where CRCA sheets are fed into a corrugated finwall forming machine via a hydraulic automatic decoiler, ensuring a smooth feed. The forming process is carried out using a multi-cylinder hydraulic system with PLC controls, synchronised to achieve the desired output. Once the formation process is complete, the edges are precisely cut to the required lengths using a hydraulic shearing machine. In accordance with the specified requirements, embossments are incorporated through the implementation of a spot welding arrangement, ensuring consideration of the finwall’s depth.
Key Features of Forming Process:
– Maximum Height: The corrugated finwall can reach a maximum height of 1600 mm.
– Depth of Wall: The maxmum depth of the wall is 400 mm.
– Embossing: Depending on the size of the finwall, 1 or 2 embossing patterns may be applied to enhance strength and rigidity.
#2 TIG Welding
TIG (Tungsten Inert Gas) welding is a precise welding process that uses a non-consumable tungsten electrode to produce high-quality welds. It is particularly advantageous for welding thin materials, such as those used in transformer finwalls.
Key Features of TIG Welding:
– Precision: Allows for high control over the welding process, ideal for intricate work.
– Clean Welds: Produces strong welds with minimal spatter.
#3 Embossing
Embossing is a forming process used to create raised or recessed designs on metal fins, enhancing the structural properties of transformer finwalls.
Key Features of Embossing:
– Increased Strength: Adds rigidity to metal fins, improving resistance to deformation.
– Oil Flow Directive: Enhances the efficiency of oil distribution by creating defined flow paths.
#4 Spot Welding
Spot welding is a process that joins two or more metal sheets by applying heat and pressure at specific points, widely used in transformer manufacturing.
Key Features of Spot Welding:
– Speed: Fast process suitable for high-volume production.
– Strength: Creates strong welds that can withstand significant stress.
#5 Stiffener Rod Welding:
Stiffener rods are welded to the corrugated finwall to enhance structural integrity. This process involves precise placement and welding of the rods to provide additional support.
#6 Endstrip Welding:
An endstrip is added to improve weldability with the wall plate. This ensures a better connection between the finwall and the wall plate, enhancing the overall strength of the assembly.
Conclusion
We utilise state-of-the-art technology and rigorous process controls to ensure the production of premium finwalls for transformers.
If you have any special requirements, please get in touch: info@visionexim.in.
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