METHOD OF ARRANGING MULTILAYERED ICE COVER FOR CURLING Russian patent published in 2009 - IPC F25C3/02 C09K3/24 

Abstract RU 2364806 C1

FIELD: heating.

SUBSTANCE: proposed method of arranging a multilayered ice cover for curling envisages formation of an ice underlayer characterised by enhanced hardness and similar to monocrystal ice in terms of structure and slip properties. Initially one provides for freezing on a lower adhesive layer at least 1 mm thick with admixture of a composite in an amount no more than 50 ppm which is represented by water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline. Then follows the underlayer formation by way of successively freezing on several clear (containing no admixtures) ice layers each no more than 1 mm. After that one provides for freezing pebble embossments onto the underlayer using water with a temperature no less than 60° C; the pebbles contain admixtures of ammonia in an amount from 0.1 ppm to 100 ppm and water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline in an amount from 50 ppm to 100 ppm.

EFFECT: extended service life of the ice cover structure produced.

3 cl, 1 dwg

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RU 2 364 806 C1

Authors

Goncharova Galina Jur'Evna

Kuznetsov Boris Alekseevich

Kalutskikh Nadezhda Nikolaevna

Dates

2009-08-20Published

2008-07-10Filed