Wear-resistant hard-surfacing for the rolls of high-pressure rol

Details Wear-resistant hard-surfacing for the rolls of high-pressure rol Wear-resistant hard-surfacing for the rolls of high-pressure rol

1994-07-11

1997-02-11

Smith, Scott A.

Roll or roller

With specific roller exterior surface structure

Surface projections, indentations, or slits

492 36, 241293, 241300, 100155R, B02C 430

Patent

active

056015208

ABSTRACT:
In order to create a wear-resistant hard-surfacing for the rolls of high-pressure roll presses for the compressive size reduction of granular material, which is suitable for autogenous wear protection and which is simple from the fabrication standpoint and also exhibits a long potential surface life with minimized danger of cracking, even under the action of high pressing compressive loads, it is proposed in accordance with the invention that a multitude of profiles, such as, in particular, nub pins (17), arranged at intervals from one another, be welded onto the roll surface by mold welding, specifically with the assistance of a mold (11) laid on the roll body (10), which mold is provided with radial through openings (12, 13, 14), which are filled with surface weld metal, after which, after solidification of the weld metal, the preferably water-cooled mold (11) is lifted off the roll (10).

REFERENCES:
patent: 4915 (1872-05-01), Daniels
patent: 412558 (1889-10-01), Stephens
patent: 3156968 (1962-03-01), White, Jr.
patent: 3412946 (1968-11-01), Gabler et al.
patent: 3608477 (1969-03-01), Weber et al.
patent: 3667584 (1972-06-01), Karlsson
patent: 5203513 (1993-04-01), Keller et al.

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