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1. 发明专利

JPH01287252A SINTERED DISPERSION STRENGTHENED FERRITIC HEAT-RESISTANT STEEL 失效
公开(公告)号：JPH01287252A
公开(公告)日：1989-11-17
申请号：JP11406088
申请日：1988-05-11
申请人： SUMITOMO METAL IND , POWER REACTOR & NUCLEAR FUEL , KOBE STEEL LTD
发明人： HIRANO SUSUMU , ISEDA ATSURO , TERANISHI HIROSHI , SHIBAHARA ITARU , NOMURA SHIGEO , NAKAJIMA MOTOHARU , ENOKIDO YUJI , FUJIWARA MASAYUKI , NISHIDA TOSHIO
IPC分类号： C22C38/00 , C22C38/18
摘要： PURPOSE:To obtain the title steel having excellent high temp. strength and low anisotropy by uniformly mixing specific amounts of one or more kinds of the powder of the oxide such as Y2O3, Al2O3, ZrO2 and MgO to the mixed powder of Fe with specific content of Cr and subjecting the mixed powder to molding and sintering. CONSTITUTION:One or more kinds of target fine powder among Y2O3, Al2O3, ZrO2, MgO, etc., 0.05-1.5wt.%, are added to the mixed fine powder constituted of 8-13wt.% Cr powder having

2. 发明专利

JPS62144805A METHOD FOR CHARGING SUCCEEDING MATERIAL IN COLD PILGER ROLLING MILL 失效
公开(公告)号：JPS62144805A
公开(公告)日：1987-06-29
申请号：JP28834985
申请日：1985-12-20
申请人： SUMITOMO METAL IND
发明人： TAMAISHI ZENICHI , TAZAWA NARIMOTO , NAKAJIMA MOTOHARU
IPC分类号： B21B21/04
摘要： PURPOSE:To prevent the dimensional fluctuation of a product by advancing a pusher rod by the distance satisfying the specific equation by a main driving mechanism then operating an auxiliary driving mechanism to advance the pusher rod by the distance satisfying the prescribed equation. CONSTITUTION:A pusher carriage 13 of the main driving mechanism which travels on a guide way 31 under being connected by a connecting jig to a wire rope 16 is provided and an air cylinder 28 is disposed as the auxiliary driving mechanism 27 therein. The push rod 14 is connected to a piston 29. The auxiliary driving mechanism 27 is preset to satisfy equation I. The rod 14 is advanced by the distance satisfying equation II by the pusher carriage 13, then the rod is ejected by the auxiliary driving mechanism 27 so as to be tightly fitted to the rear end of a preceding material 1. Since idle rolling is prevented by such method, the dimensional fluctuation of the product is prevented.

3. 发明专利

JP2508866B2 失效
公开(公告)号：JP2508866B2
公开(公告)日：1996-06-19
申请号：JP597990
申请日：1990-01-13
申请人： SUMITOMO METAL IND
发明人： TAKADA MAKOTO , NAKAJIMA MOTOHARU
IPC分类号： G01K7/12 , C21D9/08

4. 发明专利

JPH04305302A MANUFACTURE OF HIGH-QUALITY STEEL TUBE 失效
公开(公告)号：JPH04305302A
公开(公告)日：1992-10-28
申请号：JP9291891
申请日：1991-03-29
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA MOTOHARU
IPC分类号： B21B17/08 , B21B21/00 , C21D8/10 , C21D9/08
摘要： PURPOSE:To control the variation of grain size of a steel tube which is manufactured by executing solid solution heat treatment by directly electrically heating the steel tube which is cold-rolled with a Pilger mill. CONSTITUTION:Before the cold-rolled steel tube is directly electrically heated, it is sized by cold plug drawing. By cold plug drawing, fluctuation rate of cross-sectional area in the axial direction of the steel tube is reduced and uniform heating in the axial direction of tube is executed by direct electric heating.

5. 发明专利

JPH03230815A CORRECTING METHOD FOR TUBLAR MATERIAL 失效
公开(公告)号：JPH03230815A
公开(公告)日：1991-10-14
申请号：JP2586490
申请日：1990-02-05
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA MOTOHARU
IPC分类号： B21D3/05
摘要： PURPOSE:To uniformly and speedily correct a pipe over its whole length by connecting a dummy tublar material of specific length and specification with the specific joint at the top end of the most preceding material of this tublar material to be corrected and the rear end of the last successive tublar material, and correcting, on the other hand, while jointing the preceding material to the successive material with the above joint orderly. CONSTITUTION:On the case of correcting the tublar material by utilizing a rotary correcting machine 10 consisting of plural stands 12 combined with a tsuzumi (hand drum) type rolls 11, the top end of the most preceding material of the tublar material to be corrected and the rear end of the last successive material are jointed respectively to the dummy tubular material 40 of the same specification with the tubular material to be corrected having a min. length so as to be able to off-set correct with this rotary correcting machine 10 by utilizing the joint 50 of the same rigidness with the tubular material to be corrected. Next, while the preceding material 40 and the successive material 42-4N are jointed orderly with the above joint 50, the correcting is executed.

6. 发明专利

JPS62214127A PRODUCTION OF STAINLESS STEEL CLAD PIPE FOR FAST BREEDER 失效
公开(公告)号：JPS62214127A
公开(公告)日：1987-09-19
申请号：JP5539786
申请日：1986-03-13
申请人： SUMITOMO METAL IND
发明人： ABE HIDEAKI , KOJIMA TATSUHISA , NAKAJIMA MOTOHARU
IPC分类号： C21D8/10
摘要： PURPOSE:To obtain a stainless steel clad pipe for a fast breeder having a desired crystal gain size without hindering the ultrasonic flaw detection of a product by subjecting the stock of an austenitic stainless steel to cold working just prior to a soln. heat treatment and the soln. heat treatment by the combination of the reduction ratio and temp. within a specific range. CONSTITUTION:The stock of the austenitic stainless steel pipe is subjected to the cold working just prior to the soln. heat treatment and the soln. heat treatment by the combination of the reduction ratio and temp. within the range connecting codes A-H shown in the figure. The shower echo in the stage of the ultrasonic flaw detection is thereby kept in the range where a flaw detection layer is not given ill effect, i.e.,

7. 发明专利

JPS61229410A MATERIAL CHARGING METHOD FOR COLD PILGER ROLLING MILL 失效
公开(公告)号：JPS61229410A
公开(公告)日：1986-10-13
申请号：JP7180385
申请日：1985-04-04
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA MOTOHARU , KOJIMA TATSUHISA
IPC分类号： B21B21/00 , B21B21/04
摘要： PURPOSE:To prevent dimensional variation of products by making a charging load smaller than the total fixing force for a previously charged material and setting a charging velocity which restricts an impact energy generated by material charging within a specified range. CONSTITUTION:The total fixing force N for a previously charged material is given by the total of the roll chucking force and the material chucking force of rolling rolls 4 and 4'. The charging load F for the next charging material 24 is made smaller than the total fixing force N. The charging velocity V of the material 24 is restricted within a range in which the total kinetic energy of the material 24 and a moving part 25 of a charging system is smaller than the product of the total fixing force N and a shrinkage allowance S. By the above method, a kinetic energy of the material charging device is absorbed by a shrinkage energy of the abutted material, so that compressive deformation of the materials 23 and 24 is prevented and dimensional variation of products is prevented too.

8. 发明专利

JPH062287B2 失效
公开(公告)号：JPH062287B2
公开(公告)日：1994-01-12
申请号：JP7180385
申请日：1985-04-04
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA MOTOHARU , KOJIMA TATSUHISA
IPC分类号： B21B21/00 , B21B21/04

9. 发明专利

JPS62130704A MATERIAL FEEDING METHOD FOR COLD PILGER MILL 失效
公开(公告)号：JPS62130704A
公开(公告)日：1987-06-13
申请号：JP26990085
申请日：1985-11-30
申请人： SUMITOMO METAL IND
发明人： TAMAISHI ZENICHI , TAZAWA NARIMOTO , NAKAJIMA MOTOHARU
IPC分类号： B21B21/04
摘要： PURPOSE:To execute automatic material feeding by subjecting a feed carriage with which the rear end of the final tail material is gripped by a chuck after loading of plural materials to feeding in, releasing of the grip and retreating in synchronization with rolling so that the fresh materials are loaded at every rolling of one material. CONSTITUTION:The materials 6 are loaded to the feed carriage up to the limit number of loading prior to rolling. The feed carriage 21 and attached chuck are retreated by as much as the length of the freshly loaded final tail material 6 from the position where rolling of one material 6 ends so as to be ready for the next rolling. The position where the material can be chucked at the rear end of the final tail material 6 is estimated from the total sum of the unrolled materials 6 which are loaded at the point of the time when the rolling of the loaded materials end at every end of rolling upon ending of rolling of said material 6. The feed carriage 21 is then retreated to bring the chuck to said position so as to be ready for the next rolling. The material feeding method including these means is automatically executed.

10. 发明专利

JPH054634A BAR CODE LABEL FIXATION AND FIXING PLUG 失效
公开(公告)号：JPH054634A
公开(公告)日：1993-01-14
申请号：JP3911891
申请日：1991-02-08
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA MOTOHARU
IPC分类号： G09F3/00 , B65C3/02
摘要： PURPOSE:To provide a bar code label fixation by which a bar code label can be easily mounted to and dismounted from a tube, the bar code label mounted on the tube is prevented from dropping off the tube inadvertently, and a fixing plug used for mounting the bar code label can be used repeatedly. CONSTITUTION:A fixing plug 20 the outer peripheral surface of which is tapered to have a smaller diameter toward one end so as to be inserted into an end of a tube 10 is used. A bar code label 30 is fixed on the tube 10 by winding the bar code label 30 around the fixing plug 20, and pushing the one end of the fixing plug 20 into the tube 10 so that a bar code printing part 31 of the bar code label 30 is made to protrude out of the tube 10. If the fixing plug 20 is drawn out of the tube 10, the bar code label 30 is removed from the tube 10 without leaving any traces on the tube 10. The fixing plug 20 drawn out can be used repeately for fixation of the bar code label 30 onto other tubes 10.

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