Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A prefused basic flux for submerged arc welding, under both alternating and direct current, of steels of high elastic limits, consisting essentially of, in weight %: ______________________________________
SiO.sub.2
about 25 to about 35%
Al.sub.2 O.sub.3
about 2 to about 6%
TiO.sub.2
about 3 to about 7%
CaF.sub.2
about 5 to about 11.25%
CaO about 44 to about 52%
MgO about 1 to about 10%
MnO about 0.5 to about 5%
Na.sub.2 O
about 4.5 to about 8%
K.sub.2 O
about 0.5 to about 1.5%
FeO 0 to about 2%
______________________________________ wherein the weight ratio of CaO to CaF 2 is equal to or greater than about 4.
Claim 2
Dependent Claim
107 words
A prefused basic flux for submerged arc welding, under both alternating and direct current, of steels of high elastic limits, consisting essentially of, in weight %: ______________________________________
SiO.sub.2
about 25 to about 35%
Al.sub.2 O.sub.3
about 2 to about 6%
TiO.sub.2
about 3 to about 7%
CaF.sub.2
about 5 to about 11.25%
CaO about 44 to about 52%
MgO about 1 to about 10%
MnO about 0.5 to about 5%
Na.sub.2 O
about 4.5 to about 8%
K.sub.2 O
about 0.5 to about 1.5%
FeO 0 to about 2%
______________________________________ wherein the weight ratio of CaO to CaF 2 is equal to or greater than about 4.
Claim 3
Dependent Claim
47 words
A flux according to claim 1 including one or more of CaCO 3 , fluorinated fluidizer and an ionizing ingredient in an amount of up to about 5 parts by weight of each of the aforementioned per 100 parts by weight of said flux of claim 1.
Claim 4
Dependent Claim
20 words
A flux according to claim 2 wherein said fluorinated fluidizer is CaF 2 and said ionizing ingredient is potassium titanate.
Claim 5
Dependent Claim
45 words
A flux according to claim 3, consisting essentially of, in parts by weight: ______________________________________
SiO.sub.2 33.1
Al.sub.2 O.sub.3 3.1
TiO.sub.2 3.5
CaF.sub.2 9.5
CaO 44.0
MgO 1.1
MnO 0.5
Na.sub.2 O 4.5
K.sub.2 O 0.5
FeO 0.2
CaCO.sub.3 2.5
CaF.sub.2 1.2
potassium titanate 0.8.
______________________________________
Claim 6
Dependent Claim
27 words
In a submerged arc welding process in which ordinary or low-alloy steels are welded utilizing a basic flux, the improvement comprising utilizing the flux of claim 1.
Claim 7
Dependent Claim
27 words
In a submerged arc welding process in which ordinary or low-alloy steels are welded utilizing a basic flux, the improvement comprising utilizing the flux of claim 2.
Claim 8
Dependent Claim
27 words
In a submerged arc welding process in which ordinary or low-alloy steels are welded utilizing a basic flux, the improvement comprising utilizing the flux of claim 3.
Claim 9
Dependent Claim
27 words
In a submerged arc welding process in which ordinary or low-alloy steels are welded utilizing a basic flux, the improvement comprising utilizing the flux of claim 4.