THE NEW TECHNOLOGY FOR DESCALING

THE FIRST SHOT BLASTING MACHINE WITH A SINGLE WHEEL

DEBLASTER model TR 1 

Deblaster Model TR1       

 

      Deblaster model TR1

=>CAD design

ACID FREE TECHNOLOGY

APPLICATIONS:

Our Technical Department will assist You in the choiche of the best technologies solution for Your specific application.

Design and technical specification deblaster model TR1

Entry 4 rolls box Yes Adjustable rollers
Bending rolls By tungsten carbide Long life time - Replaceble insert
Rolls adjustement Manual to meet rod size and tension requirements
Blastin cabin by manganese steel
Internal protections By Hi-chromium alloy
Turbine: type external diam. Double flange 390 mm
No. of blades 8
Rod distance from blades 60 mm
Blade width 20 mm
Standard projection speed 78 m/s The speed can be varied by means of a frequency inverter (option)
Projection speed range 50 - 90 m/s
Blasting media Metal shot
Motor Direct coupled AC motor Variable speed can be produced by means of frequency inverte (option)
Motor power Up to 25 Hp
PLC Yes included in the standard supply
Feautures Advantages
Number of wheels 1 the rod passes twice under the same wheel, very high efficency and low operating costs
Distances between the 2 rods adjustable by TC guides the machine has a device to adjust the distance beetween the rods to optimise the shot pattern and increase the efficency
Blasting chamber inspection throught a door the front panel of the machine can be inspected to allow easy access to all inside components
Frequency inverter Option Reducing the shot speed when high speed is not reauired, for example for Plating Quality Wire, greatly reduces the operating costs
Wheel maintenance Easy change with a spare wheel In order to reduce the downtime for maintenance a spare complete wheel is supplied
Rod banding All at 90° C the rod is bent through the system always on orthogonal planes by means of special design pulleys to minimise torsion problems
Rod distance from blades 60 mm The distance of the blades and the width of the shot has been optimised for the rod size up to 7.0 mm
Blade width 20 mm

Frequently Asked Question:

Deblasting
Deblasting is a new in-line technology to remove the scale from the rod by means of the a built-in combination of a SOFT-DESCALING and SHOT-BLASTING by means of a SINGLE WHEELED MACHINE.

Purpose
Deblasting has been conceived to provide an "ACID-FREE TECHNOLOGY" to perfectly clean small size rod at greatly reduced operating costs compared to the other conventional Systems, to allow the highest drawing performances.

Bbasic technical concepts
Mechanical descaling effect is obtained by bending the rod on two orthogonal axes: we have used two bending sections to guide the rod twice under the same blasting wheel to cover the rod surface uniformely.

Deblasting Process(see fig. 2)
It is achieved throught the following steps:
- the rod, coming from the pay-off is bent throught 90° from its direction towards the drawing machine, by means of special guide, into the blasting chamber
- the rod enters the blasting chamber a first time and then a second time-after its direction has been reversed by means of two special pulleys.
- the rod is therefore shot blasted, under the same wheel, a first time on one side, and a second time on the opposite side, such that all surface are completely reached by the blasting media.
- the two sections of the same rod are accurately guided side by side in the same plane inside the blasting room, one in the opposite direction of the other in close proximity completely under the action of the jet of metal shots.
- after leaving the shot blasting chamber, the rod is guided in the original direction towards the drawind machine by means of a special pulley.
All the bending is at 90° in order to minimise the rod torsion throught the machine.

Material and sizes
Although Deblasting has been particularly for small size high carbon rod, it can also be applied to low and medium carbon steel with wide range of diameters (1,00 to 8,00 mm) and applications.

Technical advantages compared to the conventional methods
The conventional descaling are: scale breaking by orthogonal rollers, brushing and shot blasting by means of 3-4 wheels.
Scale breaking by orthogonal rollers: is the cheapest method but does not produce complete scale removal.
Brushing: has an inherent inconsistent cleaning, and it can not reach the highest performances due by 3-4 wheels: has high investiment costs, very high operating costs due to waste energy and high maintenance.

Main advantages
- a reduction in investiment
- a large reduction in operating costs in comparison to conventional shot blasters
- a reduction in energy, shots and spare parts consumption
- a large reduction in energy in down-time for maintenance
- small space required for the machine
- easy maintenance