Thermal Process Technology I
72Pages

MORE THAN HEAT 30-3000°C Thermal Process Technology Furnaces and Heat Treatment Plants for Annealing, Hardening, Tempering Forming, Preheating, Forging Conditioning, Drying Heat Cleaning Vacuum Technology, Pyrolysis, Brazing Surface Finishing Plastics, Rubber, Silicone Fiber Composites, GFRP, CFRP Energy Efficiency Technology i Made www.nabertherm.com Germany

Made in Germany Nabertherm with 350 employees worldwide have been developing and producing industrial furnaces for many different applications for over 60 years. As a manufacturer, Nabertherm offers the widest and deepest range of furnaces worldwide. 150,000 satisfied customers in more than 100 countries offer proof of our commitment to excellent design, quality and cost efficiency. Short delivery times are ensured due to our complete inhouse production and our wide variety of standard furnaces. Setting Standards in Quality and Reliability Nabertherm does not only offer the widest range of...

Which Furnace for Which Process? Preheating for Forging Press Hardening Heating of sheet metals Preheating of molds Hardening, Annealing Ageing Austempering Diffusion annealing Pack hardening Recovery annealing Coarse grain annealing Hardening Solution annealing Annealing Recrystallization annealing Stress-relieving Soft annealing under Protective Gases, Reaction Gases or in Vacuum Hot-wall retort furnaces Salt-bath furnaces Quench tanks Air circulation pit-type furnaces page 34 Bogie hearth furnaces gas-fired page 41 Pit-type and top-loading furnaces page 35 Cold-wall retort furnaces Water...

Tempering, Annealing Tempering Precipitation annealing Ageing Recovery annealing Heat Treatment Systems Solution annealing Preheating Reduced hydrogen annealing Solution annealing Quenching Artificial ageing under Protective Gases, Reaction Gases or in Vacuum Chamber dryers Hot-wall retort furnaces Martempering furnaces Air circulation chamber furnaces > 560 liters page 22 Air circulation chamber furnaces with annealing box, page 20 Air circulation chamber furnaces < 675 liters page 20 Air circulation chamber furnaces with annealing box, page 31 Air circulation chamber furnaces with...

Which Furnace for Which Process? Brazing/Soldering Soft soldering Brazing High-temperature brazing Curing, Tempering, Drying Dip brazing of steel Dip brazing of aluminum Composites Molds Adhesive Plastics Lacquers PTFE Silicone Surface Drying Preheating Vulcanizing Conditioning under Protective Gases Solvent Based Water Based Hot-wall retort furnaces Salt-bath furnaces Hot-wall retort furnaces Hot-wall retort furnaces Chamber dryers Cold-wall retort furnaces Cold-wall retort furnaces Chamber dryers Air circulation chamber furnaces page 20 Air circulation chamber furnaces with annealing box,...

MORE THAN HEAT 30-3000°C Surface Treatment Sintering & Debinding Thermal/Thermo-Chemical Processes Carburizing ■ Deoxidizing under hydrogen ■ Debinding Blueing (e.g. with water steam) ■ Heat cleaning ■ MIM Oxidizing Sintering Salt-bath furnaces under Protective Gases, Reaction Gases Hot-wall retort furnaces Cold-wall retort furnaces furnaces with annealing hearth furnaces with Bogie hearth furnaces with Chamber furnaces with annealing boxes Hot-wall retort furnaces Cold-wall retort furnaces Bogie hearth furnaces Bogie hearth furnaces Chamber furnaces Chamber furnaces Lift-top furnaces...

Brazing, Forming, Plastics The furnaces shown in this catalog can be used for various heat treatment processes. Nabertherm has developed interesting solutions for the processes described below as examples: In general, when speaking of brazing we have to distinguish between soft-soldering, brazing and high-temperature brazing. This involves a thermal process for forming substance-to-substance bonds and material coatings during which a liquid phase is generated by the melting of the solder. Based on their melting temperatures, the solder processes are classified as follows: Soft-solders: Tliq...

Tempering, Curing, Vulcanization and Degassing of Plastics, Rubber, Silicone, and Fiber Composite Materials Many plastics and fiber composite materials must be heat-treated for product improvement or to ensure that they have the required product properties. In most cases, chamber dryers or ovens with air circulation are used for the respective process. The following examples outline the processes which these furnaces can perform. PTFE (polytetrafluoroethylene) One application is the heat treatment of PTFE. This process can be used to improve the adhesive properties, the mixture hardness or...

Hot-Wall Retort Furnaces up to 1100 °C NR 75/06 with automatic gas injection and touch panel H 3700 NR 17/06 with gas supply system NRA 17/06 - NRA 1000/11 These gas tight retort furnaces are equipped with direct or indirect heating depending on temperature. They are perfectly suited for various heat treatment processes requiring a defined protective or a reaction gas atmosphere. These compact models can also be laid out for heat treatment under vacuum up to 600 °C. The furnace chamber consists of a gas tight retort with water cooling around the door to protect the special sealing. Equipped...

Basic version Compact housing in frame design with removable stainless steel sheets Controls and gas supply integrated in the furnace housing Welded charging supports in the retort or air-baffle box in the furnace with air circulation Swivel door hinged on right side with open cooling water system Multi-zone control for 950 °C and 1100 °C version, separated by furnace chamber and door. Depending on furnace chamber additionally subdivided into one or several heating zones Temperature control as charge control with temperature measurement inside and outside the retort Gas supply system for...

NR 200/11 H2 for heat treatment under Bayonet quick-lock for the retort, also with electric drive as additional equipment Parallel guided door to open the hot furn- Blueing of drills in water steam atmosphere Charging of the NR 300/06 furnace with a pallet truck H Version for Operation under Hydrogen When hydrogen is used as a process gas, the furnace is additionally equipped with the required safety technology. Only certified and industry proven safety sensors are used. The furnace is controlled by a fail-safe PLC control ■ H2supply at controlled overpressure of 50 mbar relative ■...