Plasma cutting

Dec 29, 2009 at 02:52 o\clock

Plasma cutting is a process

by: sanben   Keywords: Plasma, Cutting, Machine

Plasma cutting is a process that is used to cut steel and other metals of different thicknesses (or sometimes other materials) using a plasma torch. In this process, an inert gas (in some units, compressed air) is blown at high speed out of a nozzle; at the same time an electrical arc is formed through that gas from the nozzle to the surface being cut, turning some of that gas to plasma. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut. Plasma can also be used for plasma arc welding and other applications.

Plasma Cutting Machine
use a number of methods to start the pilot arc, depending on the environment the unit is to be used in and its age. Older cutters use a high voltage, high frequency circuit to start the arc. This method has a number of disadvantages, including risk of electrocution, difficulty of repair, spark gap maintenance, and the large amount of radio frequency emissions. Plasma Cutting Machine working near sensitive electronics, such as CNC hardware or computers, use the contact start method. The nozzle and electrode are in contact. The nozzle is the cathode, and the electrode is the anode. When the plasma gas begins to flow, the nozzle is blown forward. A third, less common method is capacitive discharge into the primary circuit via a silicon controlled rectifier.

Plasma gouging is a related process, typically performed on the same equipment as plasma cutting. Instead of cutting the material, plasma gouging uses a different torch configuration (torch nozzles and gas diffusers are usually different), and a longer torch-to-workpiece distance, to blow away metal. Plasma gouging can be used in a variety of applications, including removing a weld for rework. The additional sparks generated by the process requires the operator to wear a leather shield protecting their hand and forearm. Torch leads also can be protected by a leather sheath or heavy insulation.

In the past decade plasma torch manufacturers have engineered new models with a smaller nozzle and a thinner plasma arc. This allows near-laser quality on plasma cut edges. Several manufacturers have combined precision CNC control with these torches to allow fabricators to produce parts that require little or no finishing.

from:wiki

Dec 22, 2009 at 07:48 o\clock

Spiral Tubeformer Machine for Tube forming

by: sanben   Keywords: Tube, forming

 

 Spiral Tubeformer   Machine for Tube forming
 
 

 

Description
The module technique gives the customer the possibility to choose
between a number of options, allowing him to create a machine a number of options, allowing him to create a Tube forming  machine for his specific needs.
The frequency controlled main drive ensures a smooth acceleration and an almost noiseless operation.
 The outstanding patented flying slitter cuts the tubes to lengthwithout noise or hot sparks as known from the saws and provides smooth tube ends without deburring.
The design and options fulfill the needs in HVAC to produce in mild steel, galvanized steel, stainless steel or aluminum
 The corrugation unit allows a reduction in material costs and makes the bigger diameter tubes more rigid.
 
Main Technical Date:

 

Diameter range
80 – 1600mm
Thickness of strip
0.4 -1.3mm Glvanized steel
0.8mm Sinless steel
0.4-1.2mm Auminum
 
Strip Width
standard 137mm up to 1mm
thickness, 140mm above. Other widths on request.
Lockseam
Outside tube, on the inside on request.
Production speed
Max. 60 meters/min. depending on material
Cutting system
The pqtented flying slitter
Net weight
2900kg
Gross weight
3200kg
Machine dimension
3000mm*1950mm*1700mm,
Package dimension
3050mm*2000mm*1800mm
Options
Automatic length control system, controlled corrugation unit.METU flange slitter Saw blade cutter

 

from:sbkj

Dec 15, 2009 at 09:56 o\clock

hydraulic notch and punch square machine

by: sanben   Keywords: Square, Duct

 Line Ⅲ consists of a feeding metal frame, leveler grooving roller, hydraulic notch and punch Square Duct machine, hydraulic shearer and folder. The electrical control system uses a computer with a closed-loop servo-system to increase the precision and reliability of the line. The maximum working speed is 10m/min. The length tolerance is ±0.5mm.The diagonal line tolerance is ±0.8mm. The capacity of the manufacturing process will produce 1000m2 of Square Duct.
 
    
1. Four power metal feeding frame
2. One leveler grooving roller machine
3. Four hydraulic notch and die
4. Hydraulic shearer and folding machine,Fold
5. Industrial computer and specific software
main component
instruction
1.    Fixed size cut metal that can be used with a plasma cutting machine together
2.    a.punch "C","S" insert cleat notch, which can be used with "C" cleat and “S”insert flange machine
       b.Different connecting methods can be used with TDF flange machine and TDF connecting machine.
       c.It is able to punch all kinds of notch in angle steel flanges and "Z" shape It flanges.can also form "","" and ""shape, and be used with machine to produce a complete set of ducts.
3.    Able to punch TDC notch and press to form insert flange to produce "" shape duct; able to be used with connecting machine and insert flange to give a complete set of ducts. can be used with plasma system.can use with plasm。

From:sbkj

Dec 8, 2009 at 08:55 o\clock

Tube Forming Machine Main Technical Date

by: sanben   Keywords: Tube, Forming

TDC unit is one of the two universal flange making systems in the world. It can save time and material drastically with its wel-seal, strong and durable joint structure. So it is specially suitable for producing a duct with a large sectional area. Today many famous buildings in the world utilize this kind of structure in the ventilation system such as the American Kennedy Space Center, Guangzhou CITIC Plaza etc. The unit consists of a feeding frame, main tube forming machine and a shearing unit, which includes grinder and hydraulic shearing unit. The hydraulic shearing unit makes fixed cutting available with very little burr, and may be operated automatically with a maximum work speed of 6 m/min. It is divided into four types: T-20、T-30、T-35、T-40 with their corresponding duct corner T-20DC、T-30DC and T-40DC.TDC made by SBKJ may match and produce all the ducts in the DW144 standard, and has passed the HVAC PW/TMI(1987) pressure test, which is a speciality test for the intensity and sealed condition of a duct.

 

 

 

 

Tube Forming Machine Main Technical Date:
 
Type
Rolls Shape
Edge wide
Capacity
Motor
Weight
Dimension
SBTDC-20A
88mm
0.8mm
3kw
2000kg
2800×600×1150mm
SBTDC-30A
120mm
1.0mm
3kw
2200kg
3000×600×1150mm
SBTDC-35A
131mm
1.0mm
3kw
3000kg
3200×600×1200mm
SBTDC-40A
141mm
1.2mm
4kw
3000kg
3200×600×1200mm
 
Type
Rolls Shape
Edge wide
Capacity
Motor
Weight
Dimension
SBTDC-20B
 
86.5mm
0.8mm
3kw
2000kg
2800×600×1150mm
SBTDC-30B
118mm
1.0mm
3kw
2200kg
3000×600×1150mm
SBTDC-40B
176mm
1.2mm
4kw
3000kg
3200×600×1200mm
 
Type
Name
Capacity
Size
Shape
T-20DC
Duct comer
2.5mm
a=95mm
 
T-30DC
Duct comer
3mm
a=105mm
 
T-40DC
Duct comer
3.5mm
a=123mm
 
LT-30
Duct comer
3mm
a=105mm
 
T-35DC
Duct comer
3mm
a=106mm
 
BC-10
Duct clip
5mm
 
 

 

From: SBKJ