Furra derdhëse BBC Brown Boveri XCQ 44

BBC Brown Boveri XCQ 44

BBC BROWN BOVERI (nowadays ABB) – Pouromat, pouring furnace, type XCQ 44

TECHNICAL DATA

- tub capacity: 4.4t
- tiltable furnace
- inductor 120kW
- inductor voltage 380/425V
- 2 operating modes: preheating, heating mode I
- pouring efficiency 1-20kg/s
- dimensions:

 height: approx. 2700mm
 length: 2745mm
 width: 2360mm

- weight: approx. 10,000kg
- furnace equipped with a bottom-pour stopper
- average inductor lifespan: 12 weeks
- average bottom-pour stopper lifespan: 1 week
- average tub lifespan: 4 – 6 months
- furnace equipped with an additional device used to modify liquid metal with ferrosilicon

CONSTRUCTION

The pouring furnace consists of four basic groups:

- First group – longitudinal travel (orbit motor)
- Second group – transverse travel, including bottom-pour stopper
- Third group – inductor with power 120 kW, voltage 380 V 50Hz, whose main function is to heat the liquid metal. The inductor is continuously air-cooled during operation.
- Fourth group – switchboard with built-in transformer, contactors, and control station.

POURING PROCESS

The pouring process proceeds as follows: The DISAMATIC 2032 A positions the molds on the conveyor in the correct orientation. The correct position ensures that the open pouring basin in the mold is aligned with the bottom-pour stopper on the bottom of the tub. When the desired position is reached, the operator manually lifts the bottom-pour stopper (using a lever) to fill the mold until the liquid metal is visible in the overflow.
The pouring speed of the molds can be adjusted depending on the diameter of the ceramic block and the orientation of the bottom-pour stopper towards the ceramic block.

CERAMICS

The manufacturer, BBC, recommends using a two-layer fire-brick lining, where one layer is permanent and the other is expendable.
The permanent lining consists of an insulating layer, which is lightweight, burnt stone, and a sillimanite layer.
The expendable layer consists of corundum material, i.e., concrete with a high clay content (94%). Both parts are connected by a special cement.
The tub inductor is located within a lining made of Al₂O₃ or MgO and SiO₂, depending on the needs.
The material used for the bottom-pour stopper is chamotte with varying clay content.
The inductor is attached to the pouring furnace with screws and a sealing compound that has adequate plasticity and heat resistance.
The entire device consists of three stopper rod sleeves, a bot, and a ceramic block, where the bot and stopper rod sleeves are connected. The bottom-pour stopper is seated on a threaded bar. The bottom-pour stopper is continuously air-cooled. Recommended air pressure: 6 atm.

CERAMICS LIFESPAN

1. tub: approx. 4 – 6 months
2. inductor: approx. 12 weeks

Ceramics lifespan depends on many factors. The most important are: production frequency, pouring temperature, cleanliness of the liquid metal, and alloy type.
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The lifespan of the upper cover and rotating cover is much longer because these parts do not have direct contact with the liquid metal.

PRICE

*49,000 EUR

*disassembly of the furnace, transportation costs, and assembly at the customer's location are the responsibility of the Buyer; the price includes the following additional equipment:
- additional (replaceable) inductors (without induction coil): 2 pcs.

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