Gas-shielded flux-cored welding wire was gradually developed in
the ***0s. Due to its high efficiency, energy saving, excellent
welding performance, high quality, low comprehensive cost (only 1/2
of that of manual electrode, 1/3 of that of submerged-arc welding
wire and *0% of that of CO2 solid welding wire) and less spatters,
it has become a new generation of welding materials in the *1st
century. It is worth mentioning that the chemical composition can
be adjusted according to the requirements. Even low-carbon steel
strips can be made into stainless steel flux-cored welding wires
with alloying constituents of flux core, which is almost impossible
for other welding materials. The following charts on the
comparisons of costs, deposition rates and spatters of flux-cored
welding wires and other welding materials are presented as a
reference:
Deposition Rates of Welding Materials
|
Position
|
Category
|
Deposition Rate
|
Welding Current
|
Current Range
|
|
Downhand Welding
|
>
|
*5
|
**0
|
******0
|
|
>
|
*0
|
**0
|
******0
|
|
>
|
*0
|
**0
|
******0
|
|
Vertical Upward
|
>
|
*2
|
**0
|
******0
|
|
>
|
*0
|
**0
|
******0
|
|
>
|
*8
|
**0
|
******0
|
|
Vertical Downward
|
>
|
*8
|
**0
|
******0
|
|
>
|
*0
|
**0
|
******0
|
|
Horizontal Welding
|
>
|
*8
|
**0
|
******0
|
|
>
|
*5
|
**0
|
******0
|
|
>
|
*8
|
**0
|
******0
|
|
Overhead Position Welding
|
>
|
*3
|
**0
|
******0
|
|
>
|
*0
|
**0
|
******0
|
|
>
|
*6
|
**0
|
******0
|
|
Horizontal Fillet Welding
|
>
|
*6
|
**0
|
******0
|
|
>
|
*3
|
**0
|
******0
|
|
>
|
*8
|
**0
|
******0
|
Note: ux-cored Welding Wire,1.2mm;lid Welding Wire, 1.2mm;lding
Electrode, 5.0mm
The welding wire of Golden Bridge Welding
Materials can be divided into two kinds, gas-shielded flux-cored
welding wire and self-shielded flux-cored welding wire. Their
characteristics are as follows:
1. Gas-shielded flux-cored welding wire
(1) Under certain parameters, all-position welding is
available.
(2) High deposition rate. Convenient to adjust alloying
constituents.
(3) The flux core can change the characteristic of metal transfer
so as to decrease spatters and improve the weld molding.
(4) Because it is semi-volatile with CO2 and slags, blowholes can
be avoided effectively.
(5) Almost spatter-free.
2. Self-shielded flux-cored welding wire
(1) Under certain parameters, all-position welding is
available.
(2) High deposition rate. Convenient to adjust alloying
constituents.
(3) Strong penetration power. One-side welding with back
formation.
(4) Shielding gas is not needed in outdoor construction.
(5) Excellent mechanical properties, especially excellent low
temperature impact toughness. |
| |
|
| Summary Table of Gas-shielded Flux-cored Welding
Wire |
| Model |
GB |
AWS |
Current |
Main Applications |
| HY.YD****1 |
|
|
DC+ |
It is a kind of titania type CO2 gas-shielded
flux-cored welding wire used for surfacing welding. Suitable for
the situation of impact-resistance and medium wear. Used for
repairing the surfaces of low-carbon steel, medium-carbon steel or
low-alloy steel parts, such as the surfacing welding and repairing
of mining machinery and agricultural machinery. |
| HY.YD****1 |
|
|
DC+ |
Suitable for the situation of impact-resistance
and medium wear. Used for surfacing welding on some worn-out gears,
dredge buckets, tractor blades, deep digging blade ploughs, mining
machinery, etc. |
| HY.YD****1 |
|
|
DC+ |
Suitable for the situation of impact-resistance
and medium wear. Used for single layer or multi-layer surfacing
welding and repairing of the surfaces of all kinds of worn-out
parts, such as gears, dredge buckets, mining machinery, etc. |
| HY.YJ****1 |
E**1T*1 |
E*1T*1 |
DC+ |
Used for welding structures made of carbon steel
and low-alloy structural steel with tensile strength higher than or
equal to **0MPa. Most widely used for welding some key structures
like shipbuilding, mechanical manufacture, pressure vessels,
boilers, petroleum machinery, chemical machinery, hoisting
machinery, etc. |
| HY.YJ**1Ni*1 |
E**1T*-G |
E*1T*-G |
DC+ |
Used for welding structures made of low
temperature steel and low-alloy structural steel. Widely used for
welding some key structures like shipbuilding, mechanical
manufacture, pressure vessels, storage tanks, petroleum machinery,
chemical machinery, ocean structures, etc. |
| HY.YJ**1NiCrCu*1 |
|
|
DC+ |
Suitable for welding some steel structures like
railway locomotive vehicles, containers, etc. made of *9CuPCrNi,
*9CuTiRe and *9CuPRe steel. |
| HY.YJ****1 |
E**0T*1 |
E*0T*1 |
DC+ |
Used for welding structures made of carbon steel
and low-alloy structural steel with tensile strength higher than or
equal to **0MPa. Most widely used for welding some key structures
like shipbuilding, mechanical manufacture, pressure vessels,
boilers, petroleum machinery, chemical machinery, hoisting
machinery, etc. |
| HY.YJ**2Ni*1 |
E**0T*-Ni1 |
E*0T*-Ni1 |
DC+ |
Used for welding structures made of low
temperature steel and low-alloy high strength steel. Widely used
for welding some key structures like shipbuilding, mechanical
manufacture, pressure vessels, storage tanks, petroleum machinery,
chemical machinery, ocean structures, etc. |
| HY.YJ****1 |
E**0T*5 |
E*0T*5 |
DC+ |
Used for welding carbon steel and low-alloy
structural steel with tensile strength higher than or equal to
**0MPa. Used for welding some key structures like shipbuilding,
vehicles, mechanical manufacture, pressure vessels, petrochemical
machinery, hoisting machinery, etc. |
| HY.YJ**1Ni*1 |
E**1T*-Ni1 |
E*1T*-Ni1 |
DC+ |
Used for welding structures made of low
temperature steel and low-alloy structural steel. Widely used for
welding some key structures like shipbuilding, mechanical
manufacture, pressure vessels, storage tanks, petroleum machinery,
chemical machinery, ocean structures, etc. |
| HY.YJ**1Ni**1 |
E**1T*-Ni2 |
E*1T*-Ni2 |
DC+ |
Used for welding structures made of **0MPa
low-alloy high strength steel. Widely used for welding some key
structures like hoisting machinery, bridges, storage tanks,
steel-frame structures, etc. |
| HY.YJ**1NiCrCu*1 |
E**1T*-W |
E*1T*-W2 |
DC+ |
Used for welding **0MPa atmospheric
corrosion-resistant steel structures, such as railway locomotive
vehicles, offshore engineering, bridges, etc. |
| HY.YJ**1Ni*1 |
E**1T*-Ni1 |
E*1T*-Ni1 |
DC+ |
Used for welding structures made of **0MPa
low-alloy high strength steel. Widely used for welding some key
structures like hoisting machinery, bridges, storage tanks,
steel-frame structures, etc. |
| HY.YJ**1Ni1.**1 |
E**1T*-K2 |
E*1T*-K2 |
DC+ |
Used for welding structures made of **0MPa
low-alloy high strength steel. Widely used for welding some key
structures like hoisting machinery, bridges, storage tanks,
steel-frame structures, etc. |
| HY.YJ**1Ni**1 |
E**1T*-Ni2 |
E*1T*-Ni2 |
DC+ |
Used for welding structures made of **0MPa
low-alloy high strength steel. Widely used for welding some key
structures like hoisting machinery, bridges, storage tanks,
steel-frame structures, etc. |
| HY.YR**2 |
E**1T*-B2 |
E*1T*-B2 |
DC+ |
Suitable for welding 1Cr0.5Mo (such as *5CrMo)
steel below **0 |
| HY.YR**2 |
E**1T*-B3 |
E*1T*-B3 |
DC+ |
Suitable for welding 2.*5 Cr1Mo steel below
**0 |
| HY***8L |
E**8LT**1 |
E**8LT**1 |
|
Used for welding corrosion-resistant 0Cr*9Ni9 and
0Cr*9Ni*1Ti stainless steel structures below **0 Used for welding
some stainless steel materials like **1, **2, **4, **4L, **8, **8L,
etc. |
| HY***9L |
E**9LT**1 |
E**9LT**1 |
|
Used for stainless steel structures of the same
types, composite steel, dissimilar steel, etc. in the production of
equipment of synthetic fiber, petrochemical industry, etc., and
also used for surfacing welding on nuclear reactors and transition
layers of pressure vessel inner surfaces and welding inner parts of
synthesis towers. |
| HY***6L |
E**6LT**1 |
E**6LT**1 |
|
Used for welding ultra-low-carbon *0Cr*8Ni*2Mo3
stainless steel, and also used for welding Cr stainless steel which
does not need heat treatment after welding, composite steel and
dissimilar steel. |
|
|
