The furnace shown is an example of an ALUMINUM SOLUTION HEAT TREAT FURNACE. Rated at 1200° F, in this application, this furnace processes 9000 lbs. of aluminum per hour. It is a gas fired, 3 zone, 2 drive, 4 lane furnace, with an indexing conveyor, and a custom heater box arrangement. Because of the customer's floor space, and headroom limitations, (2) two of the heater boxes are mounted on the top of the furnace, while (1) one of the heater boxes is mounted on the side. This furnace was optioned with a quench tank, variable frequency conveyor drives, and a PLC. The approximate dimensions of this furnace are 80 feet long X 22 feet wide X 19 feet high. These dimensions can be reconfigured to fit into your facility. This type of furnace can be either gas or electric, and a broad range of handling and processing options are available. Specifications: TEMPERATURE RANGE • 1025°F (552°C) operating temperature, 1200°F (649°C) maximum temperature OVERALL SIZE (approximate - oven only) • 80' long x 22' wide x 19' high HEAT SOURCE • Natural Gas HEATING CAPACITY • 6,000,000 BTUH ( 3 burners) PRODUCTION RATE • 9,000 lbs. of aluminum per hour TOTAL NOMINALWORKSPACE • 988 cubic feet (9'- 5"x 70' x 18") AIR DISTRIBUTION TYPE • Convection - top down AIR CHANGES • 25+ per minute NUMBER OF ZONES • (3) three

The oven shown is a “Conveyorized” oven. The oven has a conveyor of some specific design to carry a specific part through the heat chamber.

Designing the oven with a conveyor takes careful planning to accommodate:

Loading Unloading Heat transfer to productSupport and transport of productExpansion and take-upAccessibility

In applications where a cooler is needed to reduce the temperature of the product prior to the next processing stage, the conveyor design may require being separated into two conveyors with a transfer section between the heat zone and the cool zone.

LOADING can be automatically by robot, pick and place, dumping, or transfer from another conveyor. Manual loading of some parts is also used. The conveyor load end must be long enough and appropriately accessible for whatever method is used to place product on the conveyor to enter thhe oven.

>>UNLOADING can also be automatic or manual. The unload end is designed to present the product to the next stage of operation.

HEAT TRANSFER to product can be from the top down or bottom up with the intent of passing heated air through the product and the conveyor. Some designs use air from one side to the other or both sides to the middle of the conveyed product. If air is not appropriate, radiated heat can also be used.

SUPPORT AND TRANSFER of product depends on the shape and weight of parts and the volume to be processed in a given time. The basic “Time and Temperature” profile for the product determines the number and length of zones that would be used in a conveyorized oven.

EXPANSION AND TAKE-UP are factors that determine design of the conveyor and oven as a system. A multitude of conveying types such as, metal belt, twin chain, chain on edge, fixtures and flights, can be used and each has its own method for driving and accommodating expansion from heat and general wear.

ACCESSIBILITY is an important consideration for maintenance and product inspection purposes. Pre planning for access to certain areas in the heating process can save time and money in the long term effective use of conveyorized ovens.

This is an ELECTRICALLY HEATED COATING CURE OVEN. Precision temperature control through five zones of process to achieve time and temperature characteristics of “High Tech” coatings on ceramic substrates is carried out on a 38 inch wide continuous belt. The oven interior is gas tight welded stainless steel. Process goes to 500° C with maximum 8000 pounds per hour load. Parts are cooled, on the same continuous belt, to less than 75° C in only seven feet of travel. The system is PLC controlled. Due to critical specs on the process this oven is completely "product” tested in our plant prior to shipping. Overall dimensions are approximately 60 ft. long x 16 ft. wide x 14 ft. high, including work platforms and ladders.

Specifications:

TEMPERATURE RANGE

• 932°F (500°C) operating temperature, 1000°F (538°C) maximum temperature

OVERALL SIZE (approximate - oven only)

• 48' long x 12' wide x 17' high

HEAT SOURCE

• Electricity

HEATING CAPACITY

• 1.6 Mw (1,600,000 watt) total of 5 heaters

PRODUCTION RATE

• 8000 lbs. of solids/60 lbs. of water per hour

TOTAL NOMINALWORKSPACE

• 94 cubic feet (33'- 11" x 3'- 2" x 10.5")

AIR DISTRIBUTION TYPE

• Convection - bottom up

AIR CHANGES

• 50+ per minute

NUMBER OF ZONES

• (5) five

INSULATION CONSTRUCTION

• 6-8 inch layered Kaowool, and mineral fiber

Solution Anneal

Solution anneal heat treatment is used to restore both corrosion resistance and ductility to hot worked tubing.

An Ajax TOCCO Magnethermic system provides controlled heating and cooling to dissolve carbides and control grain growth.

Ajax TOCCO and Pillar Brand Names

Advanced  induction melting technology allowing our customers to maintain a competitive edge in today's worldwide market.

Pacer Power The Ajax Tocco Pacer power supply has the ability to melt a wide range of alloys at maximum power without tap changes or capacitor switching. Pacer is the only solid state power supply that utilizes fiber optics to extend component life. Efficiency remains high at all power levels. The Pacer is available in sizes to 16000 kW.

Jet Flow Inductors As the world leader in channel furnace technology, Ajax Tocco continues to refine the design of the world famous Jet Flow inductor. Ajax Tocco has not only broken the 8000 kW barrier, but can also point to the successful start up of the largest channel furnaces in the world.

Melt Control Systems The Magne-Com melt control system enhances the overall melt system making furnace start up, daily melting, and maintenance simpler. This system can also provide access to valuable process information, alarm management, trouble shooting, data logging, trending, and report generation.

Ajax TOCCO Magnethermic seam weld annealing for ERW pipe easily fits into a production line. It is compact and features easy positioning, positive inductor locating and fast installation into today's pipe mills.

A range of technologies allows more effective annealing of thicker wall tubes.

Pipe Heat Quench and Temper Line 15.03.2012

Ajax TOCCO Magnethermic pipe heating lines are known industry wide for producing superior metallurgical and physical properties in the final product. These benefits are achieved with the fast heating rates and temperature control possible only with induction heating.

Seamless and E.R.W. pipe and casing is hardened and tempered at production rates up to typically 120 tons per hour.

Systems are specified to fit customers particular requirements.