Title:
PEENING DEVICE
Document Type and Number:
Japanese Patent JP2824610
Kind Code:
B2
Abstract:
PURPOSE: To perform a peening process while holding a distance between a processing objective connection part and a liquid injection nozzle to a fixed value.
CONSTITUTION: In a connection part 3 formed by connecting a curved surface- shaped metal member 1 to a cylindrical metal member 14 at a fixed angle, high pressure liquid 13 is jetted from a nozzle 12 into liquid, to apply peening to a surface of the connection part 3 by generated cavitation bubbles. Here is adjusted the nozzle 12 for its position and attitude by a control unit 8 through nozzle driving gears 15, 16, 25, 26, 27, 28, 29, 30. In the control unit 8, based on a distance from the nozzle 12 to a surface of the metal member 1 measured by an axial directional distance sensor 20 and based on a distance from the nozzle 12 to a surface of the metal member 14 measured by an axial diametric directional distance sensor 19, a distance L reaching a surface of the connection part 3 from the nozzle 12 is obtained by calculation. The distance L is controlled so as to hold a fixed value, and an effective peening process is applied by holding a position of generating vortex filament cavitation of the highest water hammering pressure in the objective processing connection part 3.
More Like This:
Inventors:
Fujio Yoshikubo
Koichi Kurosawa
Kunio Enomoto
Yuji Hosoda
Kazunori Sato
Koichi Kurosawa
Kunio Enomoto
Yuji Hosoda
Kazunori Sato
Application Number:
JP26119392A
Publication Date:
November 11, 1998
Filing Date:
September 30, 1992
Export Citation:
Assignee:
株式会社日立製作所
日立ニユークリアエンジニアリング株式会社
バブコック日立株式会社
日立ニユークリアエンジニアリング株式会社
バブコック日立株式会社
International Classes:
B24C1/10; C21D7/06; (IPC1-7): B24C1/10; C21D7/06
Domestic Patent References:
| JP4362124A | ||||
| JP2152771A | ||||
| JP627063U |
Attorney, Agent or Firm:
Unuma Tatsuyuki