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Flux-cored arc
welding (FCAW) with shielding gas is certainly not new to industry. With
Fonmatic self shielding flux-cored wires and Fonmatic semiautomatic
welding wire feeders, you can now lead in production with higher
deposition rates and better economy.
In self
shielded flux-cored arc welding, continuous tubular wire filled with flux
is used in a spool form. The wire is fed continuously into the arc by
means of a special wire feeder. The arc is struck by touching the wire to
the job. The heat of the arc melts the wire and forms a weld puddle. The
flux core essentially has the same functions as the external coating on a
stick electrode. The other alloying elements added in the flux, provide
desired mechanical properties to the weld metal. To obtain sufficient
protective shielding gases, normally a longer stickout (electrode
extension approx. 30 to 40 mm) is required in self-shielded flux-cored arc
welding.
The
self - shielded flux-cored arc welding process is popularly used for
fabrication, reclamation welding, hardfacing and surfacing
applications. Salient
Features: The KROSS - 500
open arc welding outfit is fully equipped to tackle your problems in
reclamation welding. The power source is a three-phase air cooled,
transformer-rectifier unit with 'constant current' or 'drooping' type
output characteristics. It is an ideal DC power source for SMAW, GTAW or
other welding processes which need such dynamic characteristics. The use
of KROSS - 500 can lead to a significant increase in
productivity.
INTRODUCTION
THE
CONCEPT
FONMATIC WIRE
FEEDER : WF - 90
Suitable
for AC or DC Constant Potential or Drooping Characteristic welding
power source (Min. OCV for AC power source should be 80
volts)
Sturdy and
reliable 4 grooved gear roll drive system to get smooth wire feeding
without slippage
Portable,
light weight and compact
Very easy
and fast installation. No auxiliary voltage
required
Facility
for wire inching by a separate push
button
Fine
tuning regulator knob for the most optimum parameter
setting
Will also
work with 'constant potential' power sources as used with MIG
welding sets
THE KROSS -
500
THE
FONMATIC RANGE OF WIRES
__________
O-1040
:
General
purpose mild steel wire for surfacing & single layer
joining.
O-1044 :
Mild Steel
wire for heavy section joining and Fabrication. (Wire confirms to
AWS-E 70 T4).
O-2060
:
Austeno-Ferritic high chrome Nickel base alloy for extreme
crack resistance joints with high strength. Used for joining
components in heavy machinery parts.
O-2308
:
Suitable
for joining SS materials of similar compositions like AISI 301, 302,
304 etc.
O-2310
:
AISI- 310
type deposit suitable for high temperature
applications.
O-2316
:
Weld
metal has excellent corrosion resistance AISI 316 type
deposit.
O-2347
:
Weld metal
has excellent resistance to Inter granular
corrosion.
O-7015
:
An
18/8/SMn type wire for joining Manganese Steel, armour steel &
dissimilar steel. Weld deposit having work hardening
properties.
O-7020
:
For
'Hadfield-Manganese Steel' components, having good impact
properties.
O-7025
:
A
Chrome-Manganese deposit for Austenitic Mn-Steel, Carbon and low
Alloy Steel. Excellent work hardening with maximum impact resistance
properties.
O-7030
:
A low
alloy air hardening machinable deposit. Ideal for rebuilding of
profiles on difficult to weld steel. No limitations on deposit
thickness
O-7050
:
A chromium
carbide deposit for wear facing of parts subject to extreme wear and
moderate impact like excavator bucket, tooth points and crusher
hammers.
O-7055
:
For
hardfacing parts subject to abrasion and impact at elevated
temperature. Weld metal is a ferritic- alloy. Hardness: 52-56
RC
O-7060
:
For
hardfacing of parts subject to extreme abrasion. Deposit should be
kept to one-pass, unless impact loading is small. Hardness of
deposit is 60-62 RC. Use buffer layer for heavy
deposits
O-7061
:
For hard
facing of parts subject to extreme abrasion. Hardness of deposit 60-
62 HRC/ use buffer layer for heavy
deposits
O-7062
:
A complex
carbide deposit for extreme abrasive wear. One layer application on
bucket and tooth of earth moving equipment. Hardness 62-64
RC
O-7063
:
Chromium
Boride deposit for extreme abrasion and low impact
applications
O-7065
:
For wear
resistance at elevated temperature. Retains high hot-hardness even
at 600°C. For blast furnace bells in steel plants, ventilator
blades, etc., Hardness 63-67 RC
O-7067
:
For parts
subject to metal-to-metal wear. Weld deposit has good crack
resistance. Can be deposited without buffer layer. Hardness 42-44
RC
O-7068
:
For parts
subjected to metal-to-metal wear deposit. Thickness to be limited to
8 mm unless, preheat is used and parts are slow cooled. Recommended
for tractor Rollers, idlers,
etc.
O-7069
:
For parts
subject to wear and corrosion for hydraulic plungers, brake drums,
etc.
O-7070
:
For hard
facing of parts subject to extreme abrasion at elevated
temperatures. Ferritic Martensitic deposit that retains high
hardness upto 600° C
O-7075 :
Tungsten
Carbide deposit to have hardness of 60-65 RC. Hardness can be
modified on heat treatment. Weld deposit is not
machinable.