NITRIDING

Aluminum Extrusion Operations Bring Nitriding In-House

Extral SP. Z o.o., a Polish company specializing in aluminum extrusions, has bolstered its manufacturing capabilities to better serve the construction, automobile, and machinery industries. Alongside acquiring a new aluminum extrusion press, the company ordered a nitriding system to nitride H11 and H13 extrusion dies of various sizes.

Nitriding pit furnace from Nitrex

The Nitrex turnkey nitriding system includes an NX-1015 pit-type furnace with a 2-ton (4410-lb) load capacity and NITREG® technology, offering nitriding treatments that optimize die performance and throughput while concurrently reducing tooling costs.

This investment coincides with Extral’s expansion of its operational footprint in Poland, including the construction of a new building to house the extrusion press and furnace. This expansion enables the company to diversify its range of extruded products while maintaining a focus on sustainability and energy efficiency. The new nitriding installation will contribute to these objectives by providing more efficient use of process gases and electricity.

Marcin Stokłosa
Project Manager
Nitrex Poland
Source: LinkedIn.com

Previously, Extral outsourced its nitriding operations to a local heat treater, due to quality issues encountered with an underperforming in-house nitriding unit. However, this latest investment enables them to bring nitriding operations back in-house, ensuring better control over the quality and consistency of their nitrided dies while also benefiting from expedited turnaround times.

Marcin Stoklosa, project manager at Nitrex, said, “Working with Extral on this project has been a pleasure. . . . Seeing customers invest in their business and achieve their goals, especially when it aligns with our values of innovation and sustainability, is always rewarding.”

This press release is available in its original form here.


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HVAC Manufacturer To Increase CAB Capabilities

An HVAC manufacturer contracted a new controlled atmosphere brazing furnace. With this system, the company anticipates gains in both productivity and energy efficiency and reduction in their plant’s overall carbon footprint.

The contract for the system was awarded to SECO/WARWICK’s American subsidiary.

“Their manufacturing line is not a smooth, even flow of identical parts," remarked Marcus Lord, managing director at SECO/WARWICK USA, "Instead, part flow is intermittent and variable sizes. It is why we made the Active Only® CAB Furnace, to meet just such a demand.”

The operating sequence of the Active Only® CAB furnace is divided into stages, including: loading, drying in the dryer, nitrogen purging in the purging chamber, heating and brazing in a proprietary convection chamber, pre-cooling in the cooling chamber with an air-jacket, and the final direct air cooling in the final cooling chamber.

This semi-continuous furnace system will operate on a part-time basis; it will also allow for variable heating and cooling rates, depending on indexing times. Additionally, the furnace can braze the widest variety of heat exchangers when lower total production requirements are needed.


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Distortion Engineering of Gears

BOTW-50w  Source:  Gearsolutions.com

THE CAUSES FOR DISTORTION OF GEARS are complex and the heat treatment process has been named as a main contributing factor. However, the truth is, all the manufacturing steps prior to and after heat treating also make a contribution to distortion. Nevertheless, any thermal operations carried out on gears may trigger and reveal the hidden distortion potential induced by manufacturing. An interesting approach of “distortion engineering” was established by the Collaborative Research Center (CRC) at Bremen University.

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