公开(公告)号：JPS61264168A

公开(公告)日：1986-11-22

申请号：JP10566485

申请日：1985-05-16

Applicant: AGENCY IND SCIENCE TECHN

Inventor： KATSUMURA MUNEHIDE ,  UCHIUMI AKIHIRO ,  MATSUDA JUN ,  NAGATA SHIGEYUKI ,  SUGASAKA KAZUHIKO

IPC: B05B7/16 ,  B05B7/22 ,  B23K26/14 ,  C23C4/12 ,  C23C4/137

Abstract: PURPOSE:To form simply a sprayed film having the adhesive degree of a high reliability, by supplying metal or inorganic material to high energy density part where laser beams are converged by a condenser lenses, heating, melting and blasting the material with gaseous flow to a material to be sprayed. CONSTITUTION:The laser beams 1 irradiated from a laser generator 1' are introduced into a spray nozzle 5 having a connecting part 6 for lenses protecting gas, a connecting part 7a for powder and carrier gas thereof and a connecting part 8 for high pressure gas, etc. through the condenser lenses 2, and conveyed to a focus 3 outside a main nozzle 9. A wire 13 of metal or inorganic material or powder is supplied to the focus 3 from a wire supplying apparatus 12' or powder supplying apparatus through a wire supplying tip 12 or a nozzle 7b, heated and melted thereat. The molten material is blasted by gaseous flow jetted from a high pressure gas nozzle 10, to the material 14 to be sprayed, heated by irradiation of the beams 1 and moving in arrow direction, to form the sprayed film 15.

公开(公告)号：JPS63123316A

公开(公告)日：1988-05-27

申请号：JP27148386

申请日：1986-11-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SAKAKIBARA JITSUO ,  NAGATA SHIGEYUKI ,  OGAWA YOJI ,  TANAKA YOSHIO

IPC: A01D46/00 ,  A01D46/24

公开(公告)号：JPS62215313A

公开(公告)日：1987-09-22

申请号：JP6000086

申请日：1986-03-17

Applicant: AGENCY IND SCIENCE TECHN

Inventor： NOBUKAWA HISASHI ,  NAGATA SHIGEYUKI ,  SAKAKIBARA JITSUO

IPC: A01D46/24

公开(公告)号：JPS62177107A

公开(公告)日：1987-08-04

申请号：JP1897986

申请日：1986-01-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MATSUDA JUN ,  UCHIUMI AKIHIRO ,  KATSUMURA MUNEHIDE ,  NAGATA SHIGEYUKI

IPC: B01J19/12 ,  B22F9/08 ,  B22F9/14 ,  B22F9/16

Abstract: PURPOSE:To easily produce pulverized powder having a uniform grain size by wires of various stocks by feeding the wire to a focus where a laser beam is converged by a parabola mirror, passing gas coaxially with the wire and blowing off the top end of the wire melted by the laser beam. CONSTITUTION:The laser beam 1 is converged by the parabola mirror 2 and the metallic wire 5 is fed through a hole 3 provided to the mirror 2 toward the focus of the laser beam 1. Gaseous flow 4 is passed coaxially with the wire 5 at the same instant so that the top end of the wire 5 melted by the laser beam 1 is blown off by the gaseous flow 4. The molten part of the wire 5 is thus pulverized.

公开(公告)号：JPS62177166A

公开(公告)日：1987-08-04

申请号：JP1898086

申请日：1986-01-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： UCHIUMI AKIHIRO ,  KATSUMURA MUNEHIDE ,  MATSUDA JUN ,  NAGATA SHIGEYUKI

IPC: B23K26/00 ,  B23K26/14 ,  B23K26/34 ,  C23C4/12

Abstract: PURPOSE:To form various kinds of thermally sprayed films having excellent adhesiveness by melting a metallic wire by a laser beam and spraying the same by various gases onto the surface of a stock heated by the laser beam in the stage of forming the thermally sprayed films of metals and metallic compd. by utilizing the laser beam into the surface of the stock. CONSTITUTION:The laser beam 1 is condensed by a condenser lens 2 and the top end of the metallic wire 6 to be thermally sprayed is fed to the focal position thereof where the top end of the wire is melted by heating. A nonreactive gas such as Ar or reactive gas 8 such as O2, N2, NH3 or hydrocarbon is ejected from a gas nozzle 7 provided above said position and the thermally sprayed films are formed on the stock 9 in the form of a molten metal or fine particles 10 of the oxide, nitride or carbide of the metal. The metallic wire 6 to be thermally sprayed is advanced through a hole 5 of a parabola reflecting mirror 4 to the laser beam to the focal point 3 of the laser beam and the surface of the stock 9 is irradiated and heated by the laser beam 13 reflected by the reflecting mirror 4, by which the thermally sprayed film 12 of the metal or metallic compd. having the excellent adhesiveness is formed on the stock 9.

公开(公告)号：JPS626877A

公开(公告)日：1987-01-13

申请号：JP14620985

申请日：1985-07-02

Applicant: AGENCY IND SCIENCE TECHN

Inventor： NOBUKAWA HISASHI ,  SUGASAKA KAZUHIKO ,  NAGATA SHIGEYUKI ,  SAKAKIBARA JITSUO

IPC: B62D55/075 ,  A61K31/35 ,  A61K31/715 ,  B62D55/10 ,  B62D55/116

Abstract: PURPOSE:To Enhancing the traveling capability of a crawler vehicle on an uneven and weak off-road area, etc. by coupling a plurality of rectangular frames longitudinally arranged, foldably with each other to form a flexible vehicle frame and by stretching crawler belts between crawler wheels provided to the vehicle frames. CONSTITUTION:A flexible crawler comprises a flexible vehicle frame 10 composed of flat plate-like rectangular frames 10a, 10a which are arranged parallelly in the longitudinal direction and which are foldably coupled with each other by means of horizontal coupling shafts 11. Each rectangular frame 10a is proviced on the lower surface thereof with right and left bearings 15 for the axles of crawler wheels 12, and the rectangular frames 10a are hinged together through stepped sections formed by cutting out one flat end section of the vehicle frames 10a by one half of the width of the vehicle frames, alternately, through-holes for receiving the horizontal coupling shafts 11 being formed piercing through the stepped sections. In order to use rear wheels 12 as drive wheels, gears 16 are fitted on the axles of the rear wheels 12 which are therefore rotated thereby. The axles of auxiliary wheels 14 are supported on the axles of the intermediate section wheels 12 through the intermediary of joint members 17 with the auxiliary wheels 14 being made to abut against the outside surface of the crawler belts 13 stretched between the front and rear wheels 12.

公开(公告)号：JPS61264108A

公开(公告)日：1986-11-22

申请号：JP10532985

申请日：1985-05-17

Applicant: AGENCY IND SCIENCE TECHN

Inventor： KATSUMURA MUNEHIDE ,  UCHIUMI AKIHIRO ,  SUGASAKA KAZUHIKO ,  MATSUDA JUN ,  NAGATA SHIGEYUKI

IPC: B23K26/14 ,  B22F9/02 ,  B22F9/08 ,  B22F9/14

Abstract: PURPOSE:To produce pulverous powder which has various forms of structure and is excellent in practicability by a simple method by irradiating an inorg. wire with the condensed laser beam to melt the wire and blowing various gases to the molten part of the wire thereby forming the pulverous particles. CONSTITUTION:The laser beam 1 is converged by a condenser lens 2 and the metallic wire which is stock for forming the pulverous powder is fed from a wire feed nozzle 3 to the converged part thereto so that the wire is heated and melted. The high pressure gas is blown from the tip of a gas nozzle 4 to the molten metal to pulverize the molten part of the metallic wire, by which the pulverous powder is obtd. The kind of the gas to be blown to the wire is properly selected according to the kind of the pulverous powder to be produced.