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Borli Group SpA

[Italy]Proportional valve for low pressure casting machines

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It is available also as an accessory for all other existing holding furnaces.


Fornace pressurisation control composed of a proportional command valve, analogical pressare transducer and regulating instrument.

Possibility of setting cycles with 8 fields of pressure variation.

PID control and automatic compensation of the reduction of the metal level in the furnace.

Graphic display of work conditions and of the deviation of the real furnace pressure from the theoretical value. File containing 20 recipes that can be loaded and modified from the dispay.

Valve: proportional with pneumatic actuator

Instrument: 96x96 mm (1/4 DIN) for flush fitting in the panel

Transducer: PID

Display: graphic

Power supply: 100 – 240 VAC 50-60Hz

One of the main requirements of the low-pressure casting system is the repeatability of the cycle for injecting the metal in the constant characteristics it is necessary the cycle always remains the same.

The furnace pressurisation curve, necessary for filling the mould, must not be ingluenced by any air leaks nor by air leaks nor by pressure variations in the air supply line or the level of metal in the furnace.

All this can be achieved using the Borli BPS” pressurisation system.

The pressurisation of the furnace, obtained by means of a series of pressure ramps, is made possible by a proportional command valve controlled by an instrument that can be easily programmed, which acquires the pressure value inside the furnace and processes the valve command signal.

All the components are quick and easy to install; even on existing plants, only a few operations are needed to make the Borli BPS2 system immediately operative.

Programming is equally simple, thanks to the graphic dispay of the parameters that can be set and to the access menus.

The Borli BPS2 system can work in three operative modes:

:: Normal mode: the pressurisation ramps are always realised in the same way, without considering the variation of the metal level in the furnace;

:: Sensor mode: a sensor positioned in the mould may be used, which detects the presence of metal. When this happens, the syste passes from the current step to the second-last step, that is the one before the holding phase; in this way the cycle time is optimised.

:: Compensation mode: as the level of the metal in the furnace falls lower at each casting, to guarantee the repeatability of the cycle it is necessary to increase the first pressurisation ramp by the pressure variation corresponding to the variation of corresponding to the variation of the level of aluminium in the furnace which is the equivalent of the volume of the casting made.

This is done automatically by the BPS2 system with a value that can be set by the operator.
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Additional information:

Model/Article number:BPS2
Place of origin:Italy
Brand:Borli
Price:6000 EUR
Price Terms:exw
Packing:box
Delivery time:90 days
Minimum order:1
Quality/Certifications:ISO 9000:2000

 

Related products: Machines & Tools ->Metallurgy machinery

 
     
 

Borli Group SpA

Street:Via Noventana, 191
City:Padova
Postal code:35027
Country:Italy
Phone: +39 49 8959109
Fax: +39 49 8959128

Contact person

Name and Surname: Alessandro Varese
Phone: +39 49 8959109
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