Molten basic welding fluxes low in manganese and with low moisture sensitivity
US3959031A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Dec 23, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/362
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Molten basic welding fluxes low in manganese and having low moisture sensitivity composed as follows: 10 - 18 % by weight of SiO.sub.2 15 - 25 % by weight of Al.sub.2 O.sub.3 0.1 - 2.0 % by weight of FeO and/or Fe.sub.2 O.sub.3 0 - 8 % by weight of TiO.sub.2 0 - 3 % by weight of MnO 1 - 8 % by weight of CaO 0 - 4 % by weight of BaO 16 - 33 % by weight of MgO 0 - 2 % by weight of Na.sub.2 O and/or K.sub.2 O 0 - 8 % by weight of ZrO.sub.2 15 - 28 % by weight of CaF.sub.2 0 - 1 % by weight of Cr.sub.2 O.sub.3 1 - 8 % by weight of CaO + BaO 25 - 37 % by weight of CaO + BaO + MgO 12 - 22 % by weight of SiO.sub.2 + TiO.sub.2. The invention also relates to a process of making the fluxes. The welding fluxes according to the invention have considerably improved welding properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.