Soldering fluxes
US4533404A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 1984 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/3612
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The soldering flux of this invention containing a chemical reaction product precipitated when at least one member selected from normally liquid brominated aliphatic hydrocarbons is mixed with at least one member selected from the group consisting of normally liquid amino group-containing aromatic hydrocarbons and normally liquid amino group-containing aliphatic hydrocarbons can not only solder stainless steel or nickel-chromium alloys whose soldering has heretofore been thought impossible, but also does not corrode the soldered metallic material after soldering, has a higher electric insulation resistivity necessary for the soldered areas of parts of electronic and electric devices and appliances, markedly reduces defects due to poor soldering, and can secure a high reliability of soldered joints as compared with conventional fluxes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.