METHOD OF MAKING HEXAGONAL TUBE BILLETS SIZED TO 257+2,0/-3,0×6,0+2,0/-1,0×4300+80/-30 mm INTENDED FOR STORAGE AND TRANSPORTATION OF SPENT NUCLEAR FUEL Russian patent published in 2012 - IPC B21B21/00 

Abstract RU 2470724 C1

FIELD: process engineering.

SUBSTANCE: proposed method comprises making hollow ingots by electroslag remelting from low-ductile steel "04Х14Т5P2Ф-Ш" with boron content of 2.0 to 3.0%, boring and turning said ingots to hollow ingots and be heated and rolled to tube stock and cutting off process wastes, i.e. Pilger heads and seed ends. Thereafter, tube stock is hot-sawn into multiple tubes and ends, and straightened. Multiple tubes are cut into two billets to be bored and turned into tube billets to be shaped to preset size hexagonal tubes. Note here that billet sizes and machining conditions are specified for all machining stages.

EFFECT: decreased wastes rules out cracks and flaws.

3 cl, 1 tbl

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RU 2 470 724 C1

Authors

Dub Aleksej Vladimirovich

Durynin Viktor Alekseevich

Skorobogatykh Vladimir Nikolaevich

Mukhanov Evgenij L'Vovich

Gordjuk Ljubov' Jur'Evna

Fedorov Aleksandr Anatol'Evich

Saf'Janov Anatolij Vasil'Evich

Dates

2012-12-27Published

2011-06-03Filed