Seco Warwick 4D Quench system features gas cooling nozzles and spinning parts


Source: ASM International

Seco Warwick 4D Quench system features gas cooling nozzles and spinning parts

Seco Warwick, Meadville, Pa., introduces 4D Quench, a continuous, single-piece flow vacuum heat treatment system for quenching and distortion control. It is said to be a cost-effective alternative that cools as rapidly as oil but without the issues associated with oil.

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United States Steel invests $700 million in joint venture with Big River Steel

October 10, 2019
Source: ASM International

United States Steel invests $700 million in joint venture with Big River Steel

United States Steel, Pittsburgh, announces that it has formed a joint venture partnership agreement under which it has taken the first step toward acquiring Big River Steel through the purchase of a 49.9% ownership interest at a purchase price of approximately $700 million in cash, with a call option to acquire the remaining 50.1% within the next four years.

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Air Products develops procedures to optimize furnace atmospheres for annealing

October 7, 2019
Source:

Engineers from Air Products and Chemicals Inc., Allentown, Pa., discuss the proper specification, measurement, and control of annealing furnace atmospheres, which are critical to achieving the required metallurgical and microstructural results, at Heat Treat 2019. With proper process control, annealing plants can reduce or eliminate some common problems, such as sooting, oxidation, sticking, and distortion.

 

Usually, an atmosphere control system can help heat treaters improve the quality and consistency of their processes. Air Products has been serving this industry for many years and provides the customers with ideal atmosphere solutions and troubleshooting knowledge/capability.

 

This paper reviews years of field experience with nitrogen and hydrogen-based atmosphere systems, and includes case studies of Air Products’ innovative atmosphere monitoring and control solutions.

 

Title: “Trouble Shooting and Optimization of Nitrogen-Hydrogen Furnace Atmospheres for Annealing.”

 

Authors: Dr. Liang He, Mr. Thomas Philips, Mr. Donald Bowe, Dr. Ranajit Ghos, Mr. Mark K. Weise, Air Products and Chemicals Inc., Allentown, Pa.

 

https://www.asminternational.org/web/heat-treat-2019

Air Products develops procedures to optimize furnace atmospheres for annealing

Engineers from Air Products and Chemicals Inc., Allentown, Pa., discuss the proper specification, measurement, and control of annealing furnace atmospheres, which are critical to achieving the required metallurgical and microstructural results, at Heat Treat 2019.

Continue reading

Nitrex Metal studies influence of standard deviations on nitriding, ferritic nitrocarburizing


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Jack Kalucki, Nitrex Metal Inc., Montreal, Quebec, discusses how standard allowed deviations in control parameters affect actual results in controlled nitriding and ferritic nitrocarburizing, in a presentation at Heat Treat 2019. These technologies have become commonly used to improve wear resistance, mechanical properties, and corrosion resistance. The framework for process control is based on standards such as AMS 2759/10 and 2759/12A. In all cases, these standards allow for a tolerance in control parameters.

 

This work presents the influence of standard allowed deviations in control parameters, for example, nitriding potential and temperature for a given furnace class, on actual results when comparing Iron, carbon steel, 4140, and H13 samples. Comparative results point to interesting variations in white layer thickness.

 

We also discuss other potential factors such as the shift of actual results due to carbon and alloying elements, and the subsequent alteration of results between expected and actual as demonstrated by shifting boundaries on the Lehrer diagram.

 

As a conclusion, the study underlines the fact that while tolerances are allowed, precise control in specific furnace classes is necessary to obtain an ideal repetition of results. Additionally, improved control lowers gas usage and gas flows to a strict minimum, with a direct impact on the cost of quality, cost of treatment, and emissions affecting the environment.

 

Title: “How Does Precise Control Affect the Outcome of Nitriding and Ferritic Nitrocarburizing Cycles?”

Jack Kalucki, Nitrex Metal Inc., Montreal, Quebec

 

Tuesday, October 15, 2019: 11:00 AM

251A (TCF Center), Detroit

https://www.asminternational.org/web/heat-treat-2019

 

Nitrex Metal studies influence of standard deviations on nitriding, ferritic nitrocarburizing

Jack Kalucki, Nitrex Metal Inc., Montreal, Quebec, discusses how standard allowed deviations in control parameters affect actual results in controlled nitriding and ferritic nitrocarburizing, in a presentation at Heat Treat 2019.

Continue reading