Flux cored arc welding electrode
AssigneeThe Lincoln Electric Company
InventorsKarl J. Kulikowski, Robert P. Munz
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Abstract
A flux cored arc welding electrode of the type used with external shielding gas wherein the electrode comprises an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material including an arc stabilizer, titanium dioxide, calcium fluoride, an alloying system of 0-4.0 percent by weight of electrode selected from the class consisting of aluminum, silicon, titanium, carbon and manganese. Iron powder controls the percentage of the fill of the electrode and 0.2-1.0 percent by weight of electrode is polytetrafluoroethylene powder.
Claims43
A flux cored arc welding electrode of the type used with external shielding gas, said electrode comprising an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material having the following constituents:
- (a) an arc stabilizer;
- (b) titanium dioxide;
- (c) calcium fluoride;
- (d) an alloying system of 0-4.0 percent by weight of electrode selected from the class consisting of aluminum silicon, titanium, carbon and manganese;
- (e) iron to control the percentage of fill;
- and,
- (f) 0.2 to 1.0 percent by weight of electrode polytetrafluoroethylene powder.
An electrode as defined in claimed 1 with an amount less than 0.02% by weight of said electrode being boron.
A flux cored arc welding electrode of the type used with external shielding gas, said electrode comprising an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material having the following constituents:
- (a) an arc stabilizer in the range of 0.2-0.5 percent by weight of said electrode;
- (b) titanium dioxide in the range of 3.0-6.0 percent by weight of said electrode;
- (c) calcium fluoride in the range of 0.08-0.15 percent by weight of said electrode;
- (d) an alloying system of 0-4.0 percent by weight of electrode selected from the class consisting of aluminum silicon, titanium, carbon and manganese;
- (e) iron to control the percentage of fill;
- and,
- (f) 0.2 to 1.0 percent by weight of electrode polytetrafluoroethylene powder.
A flux cored arc welding electrode of the type used with external shielding gas, said electrode comprising an outer ferrous sheath and a particulate fill material comprising an acidic flux system with the fill material having the following constituents:
- (a) an arc stabilizer;
- (b) titanium dioxide;
- (c) aluminum in the amount of at least 1.10 percent by weight of said electrode;
- and,
- (d) 0.2 to 1.0 percent by weight of electrode polytetrafluoroethylene powder.
A flux cored arc welding electrode of the type used with external shielding gas, said electrode comprising an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material having the following constituents:
- (a) an arc stabilizer;
- (b) titanium dioxide;
- (c) an alloying system of 0-4.0 percent by weight of electrode selected from the group consisting of aluminum silicon, titanium, carbon and manganese;
- (d) iron to control the percentage of fill;
- (e) 0.2 to 1.0 percent by weight of electrode polytetrafluoroethylene powder;
- and
- (f) boron.
A flux cored arc welding electrode of the type used with external shielding gas, said electrode comprising an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material having the following constituents:
- (a) an arc stabilizer;
- (b) 3.0-12.0 percent by weight of electrode titanium dioxide;
- (c) an alloying system of 0-4.0 percent by weight of electrode selected from the class consisting of aluminum silicon, titanium, carbon and manganese;
- (d) iron to control the percentage of fill;
- and
- (e) 0.2 to 1.0 percent by weight of electrode polytetrafluoroethylene powder.
A flux cored arc welding electrode of the type used with external shielding gas, said electrode comprising an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material having the following constituents:
- (a) an arc stabilizer selected from the group consisting of sodium compounds and potassium compounds;
- (b) titanium dioxide:
- (c) an alloying system of 0-4.0 percent by weight of electrode selected from the class consisting of aluminum silicon, titanium, carbon and manganese;
- (d) iron to control the percentage of fill;
- and,
- (e) 0.2 to 1.0 percent by weight of electrode polytetrafluoroethylene powder.
Dependencies are inferred from the claim text.