Can your current equipment offer:-

• Up to 8 years between retort and heater change?
• Tempering (D2/H13) in air up to 650c, without scale?
• The ability to switch off at any temperature and back on later, with minimal loss of temperature?
• First class surface finish, without post heat treatment cleaning?

This furnace can easily process loads of 2000 kgs. Uniformity of temperature that cannot be matched by any other process technique. Lowest possible cost.

The HTN range can carry out all neutral processes up to 1050 ^oc, and in addition offers nitriding and nitrocarburising with minimal time to change between processes.

State of the art gas and temperature control                                Tooling in the finished condition - no post cleaning required

• Neutral Hardening

• Nitriding

• Nitrocarburising

• Stress Relieving

• Annealing

• Solution Annealing

• Age Hardening

• Precipitation Hardening

• Tempering

• Bright Annealing

• Quenching

Flexibility

• Harden, temper, stress relieve and anneal in the same unit.

• Nitride and nitrocarburise in the upgraded HTN furnace.

• Switch off (saving energy) even for extended periods without significant loss in bed temperature. The subsequent cost of reheating is reduced (see Fig 1 & Fig 2). This allows the user to switch off during peak periods where energy costs are high.

• No disposal of toxic salt waste, aluminium oxide can be reused by simply placing back into the furnace.

• Smaller fluid bed furnaces can be used in the same manner as a standard salt pot, ie: wired components placed on bars. When changing from salt to flluid bed, operator training can be completed in days.

• Rapid transfer by hand will ensure minimum oxidisation. The surface finish, even with oil quenched components, is comparable to other heat treatment processes.

• Automatic start up means the equipment can be at operating temperature by the start of the shift, enabling the user to take advantage of the cheap night rate electricity.

• No washing or shot blasting necessary.

• Unparallelled temperature uniformity at all stages of the process cycle ensures the highest level of quality and guaranteed repeatability, minimising the frequency of rejected work and consequent reprocessing.

• Quench into oil and water, or for a completely dry process, quench into a fluidised bed.

Temperature uniformity is arguably the most important aspect of good heat treatment. Accurate control of temperature not only determines  hardness and structure, but also minimises distortion. This graph illustrates  accuracy that no other technique could match.

Single units designed to your specific requirements, or a full production plant can be supplied. The plant shown here can easily process in excess of 100 000 kilograms per month.