Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1981-10-14
1984-10-02
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29 33K, 295274, 29745, 29825, 57 7, 57232, B23P 2500
Patent
active
044739362
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 also the central wire (3) against corrosion achieved, but also it is assured that the annular space between the cable and the tubular sheathing member is filled completely with corrosion protection material.
REFERENCES:
patent: 1630451 (1927-05-01), Ray
patent: 2359532 (1944-10-01), Searle
patent: 2676389 (1954-04-01), Conning
patent: 3703034 (1972-11-01), Eilhardt
patent: 4117582 (1978-10-01), Borelly
patent: 4192057 (1980-03-01), Borelly
Herbst Thomas
Kellner Urs
Langwadt Otmar
Dyckerhoff & Widmann Aktiengesellschaft
Moon Charlie T.
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