Refractory materials reinforced composites for the GMAW contact tips
US8304693B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 2010 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 5, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2212/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A contact tip for a welding torch includes a refractory material reinforced copper composite including approximately 10 to 50% by volume of a refractory material and at least one of copper and a copper alloy. The refractory material is one of a metal and a ceramic material. The contact tip may include an elongated, generally cylindrical body having a front contact end, an opposite rear retaining end, and a passageway extending from the rear retaining end to the front contact end. A portion of the passageway may be defined by the refractory material reinforced copper composite. The portion may have a diameter that is approximately 3 to 8% larger than an outer diameter of a consumable electrode wire, and the portion may have a length of approximately 0.2 to 0.6 inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.