FIELD: sealings.
SUBSTANCE: method comprises squeezing the sealing rings on the article by means of yokes until the rings are locked in the grooves, heating the article up to a temperature that exceeds the melting temperature of the lead-bismuth alloy, submerging the article in the melted heating agent so that the grooves with rings underlie the level of heating agent that fill all spaces of the seal, removing the article, cooling the article down to the ambient temperature, and dismounting the squeezing yokes keeping the sealing rings compressed.
EFFECT: enhanced reliability and convenience.
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