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1. 发明授权

KR810000627B1 PRODUCTION METHOD OF TITANIUM HOT COIL BY CONTINUOUS HOT ROLLING SYSTEM 失效
公开(公告)号：KR810000627B1
公开(公告)日：1981-06-10
申请号：KR780000883
申请日：1978-03-29
申请人： KOBE STEEL LTD
发明人： YOSHII KENTA , TAKISAWA KENSABURO , NISHIMURA TAKASHI , ROYAMA YUUJI
IPC分类号： B21B3/00 , C22F1/18
摘要： A production method of a Ti hot coil by a continuous hot rolling system which comprises: heating a Ti slab to 700 -900≦̸C in a heating furnace; hot rolling the slab by a continuous hot strip mill; and winding the hot rolled strip in a coil from while the strip is kept at a temp. of not lower than 450≦̸C under a condition that at the time of winding the leading end of the resulting hot rolled strip, its trailing end is caught by the final stand roll, of a finishing mill of said continuous hot strip mill

2. 发明专利

FR2381575A1 未知
公开(公告)号：FR2381575A1
公开(公告)日：1978-09-22
申请号：FR7805450
申请日：1978-02-24
申请人： KOBE STEEL LTD
发明人： TAKISAWA KENSABURO , YOSHII KENTA , NISHIMURA TAKASHI , KOYAMA YUUJI
IPC分类号： B21B1/26 , B21B3/00
摘要： In producing a titanium strip using a continuous hot strip mill, the invention discloses a method of producing a titanium hot coil by a continuous hot rolling system characterized by the steps of heating a titanium slab to 700 DEG -950 DEG C. inside a heating furnace, then performing the hot rolling, and winding the hot rolled strip in a coil form while the strip is kept at a temperature of not lower than 450 DEG C. under a condition that at the time of taking up the leading portion of the resulting titanium hot rolled strip after hot rolling, its trailing portion is being caught by the final stand roll of a finishing mill of the continuous hot strip mill.

3. 发明专利

DE2808014A1 未知
公开(公告)号：DE2808014A1
公开(公告)日：1978-09-07
申请号：DE2808014
申请日：1978-02-24
申请人： KOBE STEEL LTD
发明人： TAKISAWA KENSABURO , YOSHII KENTA , NISHIMURA TAKASHI , KOYAMA YUUJI
IPC分类号： B21B1/26 , B21B3/00 , B21B1/22
摘要： In producing a titanium strip using a continuous hot strip mill, the invention discloses a method of producing a titanium hot coil by a continuous hot rolling system characterized by the steps of heating a titanium slab to 700 DEG -950 DEG C. inside a heating furnace, then performing the hot rolling, and winding the hot rolled strip in a coil form while the strip is kept at a temperature of not lower than 450 DEG C. under a condition that at the time of taking up the leading portion of the resulting titanium hot rolled strip after hot rolling, its trailing portion is being caught by the final stand roll of a finishing mill of the continuous hot strip mill.

4. 发明专利

JPH08332571A FLUX CIRCULATOR 失效
公开(公告)号：JPH08332571A
公开(公告)日：1996-12-17
申请号：JP16480895
申请日：1995-06-06
申请人： KOBE STEEL LTD
发明人： OKUBO NORIMASA , NISHIMURA TAKASHI , NAKAO TETSUYA
IPC分类号： B23K9/18 , B23K25/00
摘要： PURPOSE: To sufficiently prevent moisture absorption of flux at operation stop time. CONSTITUTION: An circulator has a first hopper 1 to accommodate a flux, a second hopper 2 which is connected in parallel to the first hopper 1 as communicated state and accommodates dust and a filter 4 arranged in the second hopper and to pass through air only while catching dust, by discharging air from the filter 4 through a discharge piping 7, etc., used flux together with air is sucked through a suction piping 10, etc., and recovered in the first hopper 1 so as to be reused. A first automatic valve 8 and second automatic valve 11, which can shut off for air tightness, are arranged respectively to the discharge piping 7 and suction piping 10. A heater 15 is arranged to the first hopper l.

5. 发明专利

JPH08144033A PRODUCTION OF PURE TITANIUM OR LOW TITANIUM ALLOY ELONGATION MATERIAL 失效
公开(公告)号：JPH08144033A
公开(公告)日：1996-06-04
申请号：JP28086194
申请日：1994-11-15
申请人： KOBE STEEL LTD
发明人： OYAMA HIDETO , NISHIMURA TAKASHI
IPC分类号： C22F1/18 , C22F1/00
摘要： PURPOSE: To produce a titanium elongation material free from exposure of macrostructure after corrosion by subjecting a slab, composed of pure titanium or low titanium alloy, to plastic working in an α-region and then to reheating to β-region to perform inverse transformation from α-phase to β-phase. CONSTITUTION: A slab composed of pure titanium or low titanium alloy and composed essentially of α-phase in the α-region not higher than the β-transformation temp. is subjected to plastic working in the α-region and then to reheating to the β-region, by which inverse transformation from the α-phase to the β-phase is performed. Further, plastic working in the α-region is performed ordinarily in the temp. region (about 850 deg.C) where hot working for titanium is made possible, at >= about 30% draft. Moreover, as heating conditions up to a temp. not lower than the β-transformation temp., a temp. of >= about 900 deg.C suffices for the inverse transformation from the α-phase to the β-phase because β-transformation temp. is about 882 deg.C. By this method, the titanium elongation material, free from exposure of macrostructure to the surface even if used under a sever corrosive environment, can be obtained.

6. 发明专利

JPH07214217A ROLLED SCREW MADE OF TITANIUM ALLOY AND ITS PRODUCTION 失效
公开(公告)号：JPH07214217A
公开(公告)日：1995-08-15
申请号：JP848094
申请日：1994-01-28
申请人： KOBE STEEL LTD
发明人： OYAMA HIDETO , NISHIMURA TAKASHI
IPC分类号： F16B35/00 , B21H3/02 , C22F1/00 , C22F1/18
摘要： PURPOSE:To obtain an inexpensive rolled screw made of a titanium alloy having excellent mechanical properties by molding a threaded part by cold rolling and suppressing the embrittlement thereof while subjecting the threaded part to precipitation strengthening by an aging treatment after the molding. CONSTITUTION:A blank consisting of the beta type titanium alloy material is subjected to a soln. heat treatment and the threaded part is formed on this blank by applying cold rolling thereto; thereafter, the blank is subjected to the overaging treatment at the temp. within a range from the temp. exceeding a nose temp. at which the aging precipitation of the beta phase takes place, at most short time up to the bate transus temp. at which the precipitation of the beta phase takes place, by which the rolled screw made of the titanium alloy is produced. While the threaded part is subjected to the precipitation strengthening by the overaging treatment after the molding of the threaded part, the coarse alpha phase structure is precipitated in the nonuniform lower structure formed in the threaded part by the cold rolling, by which the precipitation of the fine alpha phase structure to be the start point of destruction is suppressed and the embrittlement is suppressed.

7. 发明专利

JPH03161170A POSTURE CONTROLLER FOR MATERIALS TO BE WELDED 失效
公开(公告)号：JPH03161170A
公开(公告)日：1991-07-11
申请号：JP29639689
申请日：1989-11-14
申请人： KOBE STEEL LTD
发明人： OKUBO NORIMASA , OGASAWARA TAKAAKI , NISHIMURA TAKASHI , OKADA KATSUMI
IPC分类号： B23K9/12
摘要： PURPOSE:To manufacture a welded structure of good quality by driving both elevating devices at the starting and finishing end sides in the welding direction in the opposite directions in receipt of a detection signal and holding material to be welded at the specified position. CONSTITUTION:An inclination detector 8 is arranged in the vicinity of a welding torch 7L of welding equipment and the specified inclination in the welding direction of the material to be welded (box post) 6 is detected by this detector 8 while moving along with the welding torch 7L. The elevating devices (hydraulic cylinders) 10e and 10s are arranged corresponding to the starting and finishing end sides in the welding direction of the material 6 to be welded and support the material 6 to be welded movably in the vertical direction. A controller drives both elevating devices 10e and 10s in the opposite directions in receipt of the detection signal from the detector 8 and the material 6 to be welded is held at the specified position. By this method, the occurrence of weld defects such as lack of penetration can be prevented.

8. 发明专利

JPS62156234A PURIFYING METHOD FOR SPONGY ACTIVE METAL 失效
公开(公告)号：JPS62156234A
公开(公告)日：1987-07-11
申请号：JP29935385
申请日：1985-12-27
申请人： KOBE STEEL LTD
发明人： MURAOKA TETSUHIRO , ONOE TOSHIO , NISHIMURA TAKASHI , KANAYAMA HIROSHI , SODO TATSUHIKO
IPC分类号： C22B9/22
摘要： PURPOSE:To remove chlorides existing as a mixture in high efficiency, by laying a spongy active metal into a single layer in a heat-resisting vessel and, with rolling the above metal, projecting an electron beam with limiting the extent of irradiation to the range where the above metal does not start melting. CONSTITUTION:The spongy active metal is layed into a single layer in the heat-resisting vessel 1 and a shaking appliance 3 connected to the heat-resisting vessel 1 is driven, so that above-mentioned spongy active metal is rolled as is shown by each arrow. Simultaneously, an electron beam is projected in the direction of an arrow from an electron beam-irradiation apparatus and the above metal is heated while the extent of irradiation is limited to the range where the metal does not start melting.

9. 发明专利

JPS6274004A SURFACE ROUGHENING METHOD FOR TITANIUM OR TITANIUM ALLOY 失效
公开(公告)号：JPS6274004A
公开(公告)日：1987-04-04
申请号：JP21593485
申请日：1985-09-27
申请人： KOBE STEEL LTD
发明人： NISHIMURA TAKASHI , ITO YOSHIMASA
IPC分类号： C23C24/08 , B22F7/04
摘要： PURPOSE:To form ruggedness which provides an excellent anchor effect on the surface a Ti artificial bone, etc. by diffusively joining a powder mixture composed of Ti or Ti alloy powder and acid soluble metallic powder to the surface of a metallic material such as Ti or Ti alloy and dissolving away the acid soluble metallic powder. CONSTITUTION:The powder mixture composed of the powder consisting of the Ti or Ti alloy and the metallic powder soluble in nitric acid, sulfuric acid and hydrochloric acid, for example, steel powder and a alumina powder is diffusively joined at 750-1,300 deg.C to the surface of the metallic material consisting of the Ti or Ti alloy. The material is then treated with nitric acid, sulfuric acid, hydrochloric acid or the mixed acids composed thereof to dissolve away the acid soluble metallic powder, by which the surface of the metallic material consisting of the Ti or Ti alloy is roughened. Hydrofluoric acid is not usable in this stage as said acid acts on the Ti or Ti alloy as well.

10. 发明专利

JPS61270343A ELECTRON BEAM MELTING METHOD FOR RAW MATERIAL CONTAINING SPONGE TITANIUM 失效
公开(公告)号：JPS61270343A
公开(公告)日：1986-11-29
申请号：JP11286685
申请日：1985-05-24
申请人： KOBE STEEL LTD
发明人： ONOE TOSHIO , NISHIMURA TAKASHI , KANAYAMA HIROSHI , SODO TATSUHIKO , MURAOKA TETSUHIRO
IPC分类号： C22B9/22 , C22B34/12
摘要： PURPOSE:To manufacture Ti ingot stably at a high yield without causing splash, by heat treating sponge Ti at a specified temp. range in vacuum, then electron beam melting it, when Ti ingot is produced by melting sponge Ti using electron beam. CONSTITUTION:Since MgCl2 and unreacted Mg are contained as impurities in sponge Ti produced by Mg reduction of TiCl4, Ti yield is decreased due to splash phenomenon caused by the impurities during casting high purity Ti ingot by melting sponge Ti using electron beam. In this case, sponge Ti is heated at 1,200 deg.C-Ti m.p. range in vacuum, MgCl2 and Mg are vaporized and removed, then melted by electron beam. High purity Ti ingot is produced without decreasing Ti yield due to splash phenomenon.

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