Solid Welding Wire
There are many difference of solid welding wire at welding technology treatment and selection of materials.
Submerged arc welding wire
Submerged arc can be protect the weld metal and metallurgical processing role when welding. Welding wire is mainly as a filler metal, and adding alloying elements to the weld and participate in the metallurgical reaction.
1. Low carbon steel and low-alloy steel wire submerged arc welding wire
Common using Low-carbon and low-alloy steel wire categories has the following three:
Low-manganese wire (such as H08A): Common with high manganese for low carbon steel and low strength low-alloy steel welding flux.
Medium manganese wire (such as H08MnA H10MnS,): It is mainly used for welding of low alloy steel and also with low manganese flux for welding low carbon steel.
High manganese welding wire (e.g. H10Mn2 H08Mn2Si): Used for the welding of low-alloy steel.
2. High strength welding steel wire
This welding wire contains Mn1%, Mo0.3% ~ 0.8%, as H08MnMoA H08Mn2MoA, used for high strength low alloy high strength steel welding.
3. Stainless steel welding wire
The same with stainless steel welding wire when adopt wire components, welding chromium stainless steel, such as HoCr14 H1Cr13 H1Cr17 such as wire; H0Cr19Ni9 HoCr19Ni9 HoCr19Ni9T.
Gas shielded welding wire
Gas shielded welding wire can be divided into inert gas welding gas shielded arc welding (TIG welding and MIG welding), active gas welding (MAG welding) as well as self-protection welding. TIG welding with pure Ar commonly used MIG welding Ar +2% O2 or Ar +5% CO2. MAG welding is mainly using CO2.
1. TIG welding wire
TIG welding without the filler wire sometimes. Welded materials is heated and melted directly connected together.
TIG welding welding energy, the strength of the weld and plastic, good toughness, easy to meet the performance requirements.
2. MIG and MAG welding wire
MIG method is mainly used for welding stainless steel alloy. In order to improve the arc characteristics, adding the amount of O2 or CO2 gas in Ar gas to become the MAG method of. Alloy steel welding.
When welding, using Ar +5% CO2 can be improved weld anti stomatal capacity. Welding low carbon stainless steel can not be used mixed gas of Ar +5% CO2 but Ar +2% O2 mixed gas to prevent the weld by carbon.