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2 458 779

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(51)

IPC

B24C5/04(2006-01-01)

B82B1/00(2006-01-01)

(21) (22)

Application

2011133286/02, 2011-08-09

(24)

Start date

2011-08-09

(22)

Actual filing date

2011-08-09

(45)

Published

2012-08-20

(72)

Inventor

Polushin Nikolaj IvanovichEljutin Aleksandr VjacheslavovichSorokin Evgenij NikolaevichZhuravlev Vladimir Vasil'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Issledovatel'Skij Tekhnologicheskij Universitet

METHOD OF MAKING DIAMOND NOZZLE Russian patent published in 2012 - IPC B24C5/04 B82B1/00

Abstract RU 2458779 C1

FIELD: process engineering.

SUBSTANCE: invention relates to making diamond nozzles, particularly, to machining jet-forming channels for gaseous and hydroabrasive devices. Proposed method comprises fitting diamond discs with central bore into nozzle case to produce nozzle working part and jet-forming channel of required length. Thereafter, channel is subjected to machining. Microprofile is produced on machined surface made up of intersecting scores produced by processing said channel by coarse diamond micropowder. Then, channel surface is rubbed by rubbing paste containing nanodiamond powder, iron powder and those of aluminium-copper alloy or aluminium-nickel alloy at the following ratio of components, in wt %: nanodiamond powder 2.0-3.0, iron powder 10-13.0, powder of aluminium-copper alloy or aluminium-nickel alloy 85.0-88.0.

EFFECT: decreased labor input, higher wear resistance, higher jet speed and reduced jet power loss.

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RU 2 458 779 C1

Authors

Polushin Nikolaj Ivanovich

Eljutin Aleksandr Vjacheslavovich

Sorokin Evgenij Nikolaevich

Zhuravlev Vladimir Vasil'Evich

Dates

2012-08-20—Published

2011-08-09—Filed