Self-shielded flux-cored welding wire with special protective slag coating formed in situ and manufacture method thereof
US11534873B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 8, 2020 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Sep 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/54
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A self-shielded flux-cored welding wire with a special protective slag coating formed in situ and a manufacture method thereof. The self-shielded flux-cored welding wire includes a low-carbon steel belt and a flux core powder, the flux core powder is filled in the low-carbon steel belt, the flux core powder includes the following ingredients in percentage by mass: 60-80% glass powder, 2-8% zirconium oxide powder, 0.05-0.85% graphene powder, 2-8% potassium carbonate sodium powder, 1-3% potassium titanate powder, 2-5% rutile powder, 1-5% corundum powder, 1-3% sodium fluorosilicate powder, and the balance of iron powder, and a weight of the flux core powder accounts for 13-25% of a total weight of the welding wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.