公开(公告)号：JP2001156360A

公开(公告)日：2001-06-08

申请号：JP33631099

申请日：1999-11-26

Applicant: LASER ATOM SEPARATION ENG RES ,  TOSHIBA CORP ,  TOSHIBA ELECTRONIC ENG

Inventor： FUKUDA MAKOTO ,  OTANI RYOICHI ,  HIKITA NORIYUKI ,  GOTO FUKUMI ,  SATO MAMORU

IPC: H01S3/03 ,  H01S3/227

Abstract: PROBLEM TO BE SOLVED: To provide a metal vapor laser device for less output fluctuation and a long-period stable operation while down time required for maintenance is reduced. SOLUTION: The metal vapor laser device 1 is fixed to polarization tubes 16 and 17 at both ends of a high-temperature-resistant insulating pipe 11, and provided with a pair of laser windows 20 and 21 which allows transmission of discharged plasma generated inside the insulating pipe and the light generated with the metal vapor from a metal vapor source 10 installed inside the insulating pipe, a pair of mirrors 22 and 23 which is in the axial direction of the insulating pipe for resonance of the light having passed through the laser window, and heat-insulator splash preventing members 24a and 24b which prevent the powdered heat insulator from sticking to the laser window when the heat insulator 18 enclosing the insulating pipe is damaged by the discharged plasma occurring in the insulating pipe to be a powder state. The laser window is separated from the insulating pipe part by such means as a gate valve for washing.

公开(公告)号：JP2000017418A

公开(公告)日：2000-01-18

申请号：JP18243298

申请日：1998-06-29

Applicant: TOSHIBA CORP

Inventor： ITO MASAYUKI ,  WADA KUNIHIKO ,  MAKINO YOSHINOBU ,  KATAOKA MASAKI ,  SATO MAMORU

IPC: F16C33/12 ,  C23C4/02 ,  C23C4/08 ,  C23C4/18 ,  C23C10/28

Abstract: PROBLEM TO BE SOLVED: To obtain a wear resistant coating layer free from segregation and good in adhesion without requiring working for thinning by subjecting a white metal layer with specified thickness and porosity coated on the bearing face of a bearing base material by a thermal spraying method to diffusion adhesion heating treatment at the temperature equal to or below the m.p. thereof. SOLUTION: The bearing face of a bearing base material 1 is roughened to 5 to 50 μm Ra or 30 to 500 μm Rmax, preferably by blasting treatment and is thereafter thermal-sprayed with white metal powder of 10 to 200 μm grain size at a high speed of 350 to 1500 m/sec by a high speed flame spraying or the like. In this way, the bearing face is densely coated with a white metal layer 2 to 1 to 30 mm thickness and

公开(公告)号：JP2001159425A

公开(公告)日：2001-06-12

申请号：JP34235599

申请日：1999-12-01

Applicant: TOSHIBA CORP

Inventor： ITO MASAYUKI ,  WADA KUNIHIKO ,  SENDA ITARU ,  KATAOKA MASAKI ,  SATO MAMORU

IPC: B23K35/28 ,  C22C12/00 ,  C22C13/00 ,  C22C13/02 ,  F16C33/12 ,  F16C33/14

Abstract: PROBLEM TO BE SOLVED: To eliminate machining for reduction in thickness, a degreasing work using an organic solvent and a plating work as a substrate treatment, to prevent segregation of white metal layers and to improve adhesion to a beating base material. SOLUTION: This manufacturing method for a bearing component, having a wear-resistant coating layer composed of the white metal layers on the beating base material comprises the steps of overlaying the white metal layer having a thickenss of 0.2 to 2.0 mm on the beating surface of the beating base material by TIG welding; closely coating the overlaid white metal layer the white metal layer having a thickness of 1.0 to 30.0 mm and a porosity of 20% or less by thermal spraying and subjecting the bearing base material formed with the white metal layers to a diffusion adhesive heat treatment, carried out by heating in a heating furnace at a temperature equal to or lower than the melting point of white metal.

公开(公告)号：JP2000234161A

公开(公告)日：2000-08-29

申请号：JP3245699

申请日：1999-02-10

Applicant: TOSHIBA CORP

Inventor： WADA KUNIHIKO ,  ITO MASAYUKI ,  MAKINO YOSHINOBU ,  KATAOKA MASAKI ,  SATO MAMORU

IPC: F16C33/12 ,  C23C4/02 ,  F16C33/14

Abstract: PROBLEM TO BE SOLVED: To provide bearing parts having a long service life and high reliability by providing the surface of a bearing base material with an intermediate layer of metal and securing mechanical and chemical adhesion between the white metal and the base material, to provide a method for producing the same and to provide a method for repairing the same. SOLUTION: In bearing parts having a wear resistant coating layer composed of white metal 3 applied to a bearing base material 1 by a thermal spraying method, the layer 2 of a metallic element or an alloy having