Quenching Systems

Nutec Bickley is an industrial Quenching Systems manufacturer, among other products for metals industry, in custom designs and dimensions to match customer production and process requirements for the heat treating facility

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Systems we manufacture for the Quenching process

Batch Quenching Systems Water – Polymer - Oil

Nutec Bickley manufactures and supplies quenching tanks. They are used for cooling the parts in water, oil or polymer after the heat treatment processes has ended. These are typically paired with a batch style furnace. In a box furnace operation the quench would be placed directly in front of the furnace and the system is comprised of and elevator platform with a roller conveyor.

The same system can be paired with a roller hearth or pusher furnace for continuous operation. Large quench systems can be designed to be partnered with car bottom furnaces. In this arrangement the quenching systems are offset to allow the furnace car to travel and then unloaded by overhead crane or fork transfer mechanisms. They are manufactured in a wide variety of sizes and intended for intensive use.

The size of a batch immersion quench tank depends on the dimensions of the workload, as well as the allowable temperature rise.

The temperature rise permitted is dependent on whether the quenchant is oil, water, or polymer. Care should be taken in a batch operation to ensure that a sufficient amount of quenchant covers the top of the workload.

The physical dimensions of the tank should be large enough to ensure full immersion of the quench load and fixtures, and, at the same time, should allow enough space for agitators and manipulators.

When using hot quenching oils, it is necessary to make an allowance for thermal expansion of the oil, either by making provision for an overflow system, or by manual adjustment of the fluid level.

A quench tank must contain sufficient fluid to quench the load without an excessive rise in temperature of the quenching fluid.

To obtain maximum efficiency from cooling systems, the direction of circulation should be such that hot quenchant is removed from the top of the tank and then passed through the heat exchanger.

Industries and applications of Quenching Systems

The design is based on the customers requirements, in many cases these Quench Systems are integrated with load and unload Robots or custom manipulators to ensure specifications are met.

Nutec Bickley simulation tools (computational fluid dynamics CFD) is used in order to select the best quenchant agitation systems and flow distribution technology.

Our quenching systems are provided for the following main process applications:

  • Quench tanks for steel castings and forgings

  • Air quenching for steel castings and forgings

  • Tank elevator systems

  • Batch With Agitation

  • Quench tanks for aluminum casting

  • Spray

  • Air quenching chambers for aluminum castings

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Air Quenching Systems

Nutec Bickley also manufactures air quenching systems. This mechanism is used to limit the residual stresses as well as the brittleness that occurs during the quenching process. Rapid quenching also has a tendency to create distortions due to the stresses, especially if the cooling is non-uniform over the surface of the part, air quenching may be used to remedy this.

Air quenching is a good choice when quenching parts with dissimilar metals such as aluminum engine blocks with cast iron bore liners. Another advantage to implementing an air quench is the low distortion rate. Water quenching is very aggressive on thin walled casting such as shock towers for example. Air quenching can provide aggressive cooling rates without the side effect of distortion and eliminate the need for subsequent straightening processes.

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Value added by Nutec Bickley

Nutec Bickley is focused on understanding our customer’s thermal equipment needs and working to supply the best equipment to meet those needs at the most competitive price. By applying the latest proven technology, Nutec Bickley is able to provide innovative solutions that meet or exceed our customer’s expectations in equipment quality, production efficiency and operational economy.

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