Process for manufacturing a protection against corrosion for cables of high-strength steel wires
US4473936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1981 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Oct 14, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/532
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
For their protection against corrosion, cables of high-strength steel wires, principally for use as tension members for post-stressable earth anchors or rock anchors, are treated with a corrosion protection material and furnished with a tubular sheathing member. In order to be able to surround completely all wires (3, 4) of the cable (2) with corrosion protection material, according to the invention the interior open spaces between the individual wires of the cable are in a first work operation filled with corrosion protection material, and in a second work operation immediately thereafter, when the strand is inserted into the tubular sheathing member, the annular interior open space between the cable and the tubular sheathing member is filled with corrosion protection material. For this purpose, the corrosion protection material is brought into a state of low viscosity and is kept in that state while the interior open spaces are being filled up, whereas afterward it passes over into a state of high viscosity. By this means, not only is the complete filling of the central channels between the interior wire (3) and the exterior wires (4) and consequently a complete protection of als…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.