ADAL Offer - Surface engineering - Thermal process

Thermal process

Ovens - general information

The core processes in most finishing plants are heat treatments.

Heat treatment is used for a variety of purposes, e.g.:

    Water drying
    Pre-heating of workpieces
    Paint drying
    Curing of powder coating and/or wet painting
    Technical heat finishing
    High temperature finishing

Most AABO finishing plants include some form of heat treatment. AABO has therefore developed a wide range of ovens for a broad spectrum of uses.  

AABO ovens have all been designed and produced using state-of-the-art technology. They have all been produced to achieve optimum energy efficiency and maximum protection of the environment.

Descriptions and examples of AABO ovens can be found below. It is important to emphasise that AABO always focuses on designing and supplying customer-specific solutions. This means that our ovens can be designed and produced in many different ways.

Some of our solutions are described below. These include:  

    Conveyor ovens
    Box ovens
    Dip ovens

 

There are a large number of applications for ADAL industrial ovens in industrial heating processes.

The most common applications are:

Polymerisation, Drying, Pre-heating, Thermal treatment, Thermoforming processes, Stress-relief, Stabilisation, Curing, Hardening, Vulcanisation, Post-heating, Maintenance.

 

Dip ovens

A dip oven is usually used for manual or automatic crane systems in which dip heat treatment is required during the finishing process.

AABO’s dip ovens are available for use at several temperature levels. This means that we offer them in a variety of different insulation layers and constructions.

    0 -100 °C:           100 mm
    100 - 250 °C:      310 mm
    250 - 550 °C:      450 mm

AABO’s dip ovens are designed as a ‘floating’ internal core, suspended using a minimum of contact points to the bearing external construction. This minimises the development of a heat bridge.

AABO’s dip ovens are all based on the convection principle which ensures optimum energy utilisation.

Heat is injected into the lower section of the oven chamber either through air ducts in the floor or in the walls. The air is recirculated from the top of the oven chamber across a heating unit. This ensures correct and optimum thermal air distribution as well as uniform heat transmission to the production items.

AABO’s dip ovens can be heated using:

    Gas
    Oil
    Electricity

AABO’s dip ovens are available with:

    Direct heating
    Indirect heating

AABO’s dip ovens are available as:

    Door ovens into which production items are transported through sliding doors located at the top of the oven chamber. The doors are available either as manually operated or fully automated doors

 

Box ovens

A box oven is typically used with manual or Power & Free conveyor systems where heat treatment is a part of “step by step” finishing process.

Box ovens are also used as standalone units into which the workpieces are transported for heat treatment using e.g. rollers and pallets or suspended directly from overhead fixture points mounted in the oven chamber.   

AABO’s box ovens are available for use at several temperature points. This means that these ovens are available in a variety of different insulation layers and constructions.

    0 – 100 °C:     100 mm
    100 – 250 °C:  310 mm
    250 – 550 °C:  450 mm

AABO’s box ovens are designed with a ‘floating’ internal core, suspended using a minimum of contact points to the external bearing construction. This minimises the development of a heat bridge.

AABO’s box ovens are all based on the convection principle which ensures optimum energy utilisation.

Heat is injected into the lower section of the oven chamber either through air ducts in the floor or in the walls. The air is recirculated from the top of the oven chamber across a heating unit. This ensures correct and optimum thermal air distribution as well as uniform heat transmission to the production items.

AABO’s box ovens can be heated using:

    Gas
    Oil
    Electricity

AABO’s box ovens are available with:

    Direct heating
    Indirect heating

AABO’s box ovens are available as:

    “Sluice” ovens where workpieces are transported through an air lock located at the entry to/exit from the oven chamber
    Door ovens where workpieces are transported through a revolving or sliding door located at the entry to/exit from the oven chamber The doors are available either as manually operated or fully automated doors