POT FURNACE POT FURNACE POT FURNACE --- PIT FURNACEPIT FURNACEPIT FURNACE

FORFORFOR HEATHEATHEAT TREATMENTTREATMENTTREATMENT

UNDERUNDERUNDER ATMOSPHEREATMOSPHEREATMOSPHERE

Hardening

Carburizing

Carbonitriding

Quenching

(in oil/ water/ salt)

Tempering

Brazing

Nitriding

Nitrocarburizing

Oxynitriding

SYSTEM 230

SWITZERLAND INDUSTRIAL FURNACES

SA

70 90 150 200 120

Type 70/100 70/150 90/100 90/150 90/200 120/150 120/200 120/250 120/300 150/200 150/250 200/250 200/300

Maximum load weight [kg] 800 1200 1000 1600 2000 2500 3000 3500 4500 4000 5000 10000 12000

Useful diameter [mm] 700 700 900 900 900 1200 1200 1200 1200 1500 1500 2000 2000

Useful height [mm] 1000 1500 1000 1500 2000 1500 2000 2500 3000 2000 2500 2500 3000

Volume of load [dm3] 385 577 636 954 1272 1696 2262 2827 3393 3534 4418 7854 9425

Max temperature pot furnace [°C] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1100 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Max temperature pit furnace [°C] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1000 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Technical data

INDUSTRIAL FURNACES SWITZERLANDINDUSTRIAL FURNACES SWITZERLANDINDUSTRIAL FURNACES SWITZERLAND

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LLLAAA FFFENATTEENATTEENATTE | CH | CH | CH --- 2942 A2942 A2942 ALLELLELLE | S| S| SWITZERLANDWITZERLANDWITZERLAND T +41 32 465 10 10 | F +41 32 465 10 11 T +41 32 465 10 10 | F +41 32 465 10 11 T +41 32 465 10 10 | F +41 32 465 10 11 INFOINFOINFO@@@CODERECODERECODERE...CHCHCH | | | WWWWWWWWW...CODERECODERECODERE...CHCHCH

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Functioning

Loading

Parts can be either suspended on a loading support or either placed in fixtures/ baskets. Handling

Loading occurs either with a crane or transfer bell, which can be seen on the photo on the left.

After the treatment cycle in the furnace, the load can also be transferred to the quench tank either by crane or transfer bell.

Advantages of our transfer bell

Automatic transfer to all stations within your line Quenching cycle is entirely automatic

Improvements in the working conditions: No human intervention in hot working zones No radiation of the load when it is transferred in workshop Eliminates risk of accident while handling

No sign of flames or fumes during oil quenching operation contained in the fume extraction system and filtration

Conception

Pit furnace is equipped with the following elements :

Light insulation

System of heating either by electric or gas

Cylinderic metallic retort installed within the furnace

Moveable plug with motorised opening and closing devi-

ce, supplied with convection fan and gas feeding injector.

The load is supported on a inferior plug , that avoids ten-sile stress of the retort and perfectly adapted for a useful

load weight of several tonnes

POT FURNACE

For heat treatment under atmosphere with cooling under protective gas

PIT FURNACE

For heat treatment under atmosphere with quenching in liquid or gas

SWITZERLAND INDUSTRIAL FURNACES

Conception

There are 2 different models of pot furnace:

a) Pot without convection fan of atmosphere, temperature max. 1100°C

This pot is suitable for heat treatment when it is not necessary to have high temperature precision such as bright annelaing of mechanic parts, wire or band coils.

b) Pot with convection fan of atmosphere,

temperature max. 1000°

This pot is fitted with a turbine and system of gas gui-ding, which assures an efficient convection of the at-

mosphere

We obtain an excellent heat transfer and reliable ther-mochemical homogeneity of the complete load. These conditions are necessary for treatments such as carbu-rizing and nitriding.

Functioning

Loading

Parts can be either suspended on a loading support or either placed in fixtures/ baskets, which are loaded in the pot.

Handling

After loading the parts in the pot, this unit is closed and purged under vacuum or neutral gas. This chamber is filled with gases to achieve suit-bale working parameters.

Pot is then loaded in a hot or cold furnace. When the treatment cycle is completed, there are 2 ways to proceed: a) Pot is cooled in the furnace with the help of a cooling fan b) Pot is transferred to a specific cooling station

Transfer crane

Furnace Cooling station

Isolated transfer bell

Furnace

Quench tank