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1. 发明专利

JPH05311284A 失效
公开(公告)号：JPH05311284A
公开(公告)日：1993-11-22
申请号：JP14320192
申请日：1992-05-08
申请人： RAILWAY TECHNICAL RES INST , MITSUBISHI MATERIALS CORP
发明人： NAGASAWA HIROKI , SUGAWARA ATSUSHI , GOTO MITSUO , IWAMURA TAKURO , ASAO HARUHIKO , KOSHIBA YUTAKA , YAJIMA KENJI
IPC分类号： B60M1/13 , C22C9/00 , H01B1/02
摘要： PURPOSE:To improve the tensile strength and collecting and sliding wear resistance of a trolley wire as well as its pressure weldability by specifying Cr, Zr, Si, Cu, O or the like. CONSTITUTION:The objective copper alloy trolley wire is formed of a compsn. constituted of, by weight, 0.15 to 0.8% Cr, 0.01 to 0.25% Zr. 0.01 to 0.1% Si and

2. 发明专利

JPH06316735A HANGING OVERHEAD WIRE 失效
公开(公告)号：JPH06316735A
公开(公告)日：1994-11-15
申请号：JP12547193
申请日：1993-04-28
申请人： MITSUBISHI MATERIALS CORP , RAILWAY TECHNICAL RES INST
发明人： NAGASAWA HIROKI , AOKI SUMIHISA , MAE YOSHIHARU , KOSHIBA YUTAKA , YAJIMA KENJI , ISHIBASHI SHUNJI
IPC分类号： C22C9/00
摘要： PURPOSE:To obtain a hanging overhead wire excellent in high temp. creep strength and usable in a severe environment by specifying the oxygen content in a copper alloy to be a certain value or below. CONSTITUTION:The compsn. of a copper alloy contg., by weight, 0.15 to 1% Cr, 0.01 to 0.3% Zr and 1% Cr content and >0.3% Zr content, its hot workability is deteriorated, and its working into wire rod is made hard. On the other hand, both in the case of 10ppm oxygen, high temp. creep strength at >=200 deg.C can not be obtd. By regulating the oxygen content in the copper alloy contg. specified amounts of Cr and Zr to be

3. 发明专利

JPH06154838A PRODUCTION OF COPPER ALLOY TROLLEY WIRE AND HANGING STRINGING 失效
公开(公告)号：JPH06154838A
公开(公告)日：1994-06-03
申请号：JP33102492
申请日：1992-11-17
申请人： MITSUBISHI MATERIALS CORP , RAILWAY TECHNICAL RES INST
发明人： NAGASAWA HIROKI , AOKI SUMIHISA , KAWAKITA SHIZUO , MAE YOSHIHARU , IWAMURA TAKURO , KOSHIBA YUTAKA , YAJIMA KENJI , ISHIBASHI SHUNJI
IPC分类号： B21C1/00 , B60M1/30 , C22C9/00 , C22F1/00 , C22F1/08 , H01B1/02
摘要： PURPOSE:To provide the process for production of the trolley wire and hanging stringing of the tramcar lines of high-speed electric railways. CONSTITUTION:A strand is produced by hot working a copper alloy billet consisting of a compsn., which contains, by weight %, 0.1 to 1.0% Cr, 0.01 to 0.3 Zr, 0.006 to 0.1% Si and 0.006 to 0.1% P and consists of the balance Cu and inevitable impurities, under the conditions of 860 to 1000 deg.C and >=90% working rate, the rapidly cooling this billet right after this hot working or allowing the billet to cool after the hot rolling and further, subjecting the alloy to a soln. heat treatment consisting of rapid cooling after heating at 860 to 1000 deg.C. This strand is then subjected to at least one time of cold working and is thereafter subjected to an aging treatment or is subjected repetitively to >=2 times of the cold working and the aging treatment.

4. 发明专利

JPH11342457A CONTINUOUS CASTING DEVICE 失效
公开(公告)号：JPH11342457A
公开(公告)日：1999-12-14
申请号：JP15030898
申请日：1998-05-29
申请人： MITSUBISHI MATERIALS CORP
发明人： ASAO HARUHIKO , KOSHIBA YUTAKA , WADA MASAHIKO , SHIMODA TETSUYUKI
IPC分类号： B22D11/04 , B22D11/059 , B22D11/10 , B22D11/106
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting device for improving casting velocity by reducing ingot defects and improving contamination of a work circumstance and mold cooling water. SOLUTION: This continuous casting device comprises a tundish 1 for temporarily storing a molten metal 4 supplied from a dissolution furnace, a nozzle 2 extending downwards from the bottom of the tundish 1, and a mold 3 which cools/solidifies the molten metal 5 poured from the nozzle 2 and forms an ingot 6 from the molten metal 5. In this case, a cover 7, which shields the molten metal 5 inside the mold 3 from the outside atmosphere and from which a reducing gas or an inert gas is injected, is provided between the tundish 1 and the mold 3.

5. 发明专利

JPH1017956A METHOD FOR INOCULATING C INTO MOLTEN FERRUM-CONTAINING COPPER ALLOY 失效
公开(公告)号：JPH1017956A
公开(公告)日：1998-01-20
申请号：JP16726796
申请日：1996-06-27
申请人： MITSUBISHI MATERIALS CORP
发明人： TAKUNO NAOKI , YAJIMA KENJI , KOSHIBA YUTAKA
IPC分类号： C22C1/02 , C22C9/00
摘要： PROBLEM TO BE SOLVED: To provide a method for inoculating C in melting an Fe-containing copper alloy for producing a copper alloy ingot having fine casting structure containing Fe and C as essential components by melting a lead frame scrap for semi-conducting device. SOLUTION: The copper alloy such as the lead frame scrap, is melted with a non-graphite crucible 1 and adjusted to the component so that the Fe content becomes 2.0-2.3wt.%. The obtd. molten alloy 3 is held in the non-graphite crucible 1 while being in contact with a graphite block 4 for a fixed time or held in a graphite crucible for a fixed time to sufficiently form the C into the molten copper alloy as solid-solution.

6. 发明专利

JPH08218155A PRODUCTION OF ZIRCONIUM-COPPER ALLOY SHEET HAVING FINE CRYSTAL GRAIN 失效
公开(公告)号：JPH08218155A
公开(公告)日：1996-08-27
申请号：JP4910795
申请日：1995-02-14
申请人： MITSUBISHI MATERIALS CORP
发明人： MAE YOSHIHARU , TAKUNO NAOKI , KOSHIBA YUTAKA
IPC分类号： C22F1/08 , C22C9/00 , C22F1/00
摘要： PURPOSE: To produce a Cu-Zr alloy sheet free from a white line pattern structure and having fine crystal grains by subjecting a Cu-Zr alloy having a specified compsn. to hot rolling at a specified temp. and draft and thereafter repeating cold rolling with annealing interposed. CONSTITUTION: The ingot of a Cu-Zr alloy contg., by weight, 0.01 to 0.2% Zr, and the balance Cu is heated at 400 to 700 deg.C and is subjected to primary hot rolling at 10 to 50% draft to work into a sheet material, which is thereafter annealed at 700 to 800 deg.C. Successively, it is subjected to secondary hot rolling at >=90% total draft, and this hot rolled sheet is faced, is cooled and is thereafter repeatedly subjected to cold rolling and process annealing to work into a thin sheet e.g. having 0.25mm sheet thickness. The Cu-Zr alloy thin sheet having fine crystal grains and free from the generation of cracking, breaking or the like at the time of bending and twisting can be obtd.

7. 发明专利

JPH11350055A COPPER ALLOY EXCELLENT IN WEAR RESISTANCE OF BLANKING DIE REPEATED BENDING FATIGUE RESISTANCE AND SOLDERABILITY 失效
公开(公告)号：JPH11350055A
公开(公告)日：1999-12-21
申请号：JP15454598
申请日：1998-06-03
申请人： MITSUBISHI SHINDO KK , MITSUBISHI MATERIALS CORP
发明人： MORI TETSUTO , SUZUKI TAKESHI , SAKAKIBARA TADAO , MAE YOSHIHARU , NOGAMI TAKASHI , KOSHIBA YUTAKA
IPC分类号： C22C9/00 , H01L23/48 , H01L23/50
摘要： PROBLEM TO BE SOLVED: To provide a copper alloy and a copper alloy thin sheet excellent in all of wear resistance of, a blacking die repeated bending fatigue resistance and solderability and moreover excellent in resin adhesion. SOLUTION: This alloy has a compsn. contg., by weight, 1.5 to 2.4% Fe, 0.008 to 0.08% P, 0.01 to 0.5% Zn, 0.003 to 0.5% Ni, 0.003 to 0.5% Sn and 0.0005 to 0.02% C, furthermore contg., at need, one or >=two kinds among Al, Be, Ca, Cr, Mg and Si by 0.0007 to 0.5%, and the balance Cu with inevitable impurities. In this case, the total content of one or >=two kinds among Nb, Ti, Zr, Ta, Hf, W, V and Mo contained in the copper alloy is limited to

8. 发明专利

JPH10286651A MOLD FOR CONTINUOUS CASTING 失效
公开(公告)号：JPH10286651A
公开(公告)日：1998-10-27
申请号：JP9682897
申请日：1997-04-15
申请人： MITSUBISHI MATERIALS CORP
发明人： KOSHIBA YUTAKA
IPC分类号： B22D11/04 , B22D11/055 , B22D11/059
摘要： PROBLEM TO BE SOLVED: To prevent the development of fine shrinkage hole and crack in the center part of a cast billet by shaving grooves extended in the axial direction on the fitting surface of a mold constituted by fitting an inner and an outer cylinders and forming gaps at a part of the fitting surface to reduce the heat conductive area between the inner and the surface cylinders and molten metal extracting heat in a primary cooling. SOLUTION: The mold 11 used to continuously casting copper, etc., is formed by fitting the copper-made outer cylinder 11b by shrinkage-fitting, pressing-in, etc., to the graphite-made inner cylinder 11a of a refractory having bad wettability with the molten metal. Many grooves 12 extended in the axial direction and having a fixed width are arranged on the outer peripheral surface of the inner cylinder 11 of this mold at the same interval to form the gaps at a part of the fitting surface of the inner and the outer cylinders 11a, 11b. Further, the lower end side of the grooves 12 are closed to prevent the invasion of secondary cooling water or steam from the lower part of the mold 11 into the grooves 12. The grooves can be arranged on the inner peripheral surface of the outer cylinder 11b and in some case, the grooves are arranged on both of the inner and the outer cylinders 11a, 11b. Further, it is desirable to form such wedge shape that the width is gradually narrowed from the upper end of the mold 11 toward the lower end side.

9. 发明专利

JPH0987815A PRODUCTION OF COPPER ALLOY MOLD STOCK FOR CONTINUOUS CASTING FOR STEELMAKING, AND MOLD PRODUCED BY USING THE SAME 失效
公开(公告)号：JPH0987815A
公开(公告)日：1997-03-31
申请号：JP24498595
申请日：1995-09-22
申请人： MITSUBISHI MATERIALS CORP
发明人： NOGAMI TAKASHI , KOIDE MASATO , MORIMOTO TAKASHI , KOSHIBA YUTAKA
IPC分类号： B22C9/06 , B22D11/04 , B22D11/059 , C22C9/00 , C22F1/00 , C22F1/08
摘要： PROBLEM TO BE SOLVED: To produce an alloy mold stock for continuous casting for steelmaking, resistant thermal fatigue and hardly causing cracking, by subjecting a Cr-Zr type copper alloy of specific composition to specific hot working and then to respectively specified cooling and aging treatments. SOLUTION: An ingot of a Cr-Zr type copper alloy containing, by weight, 0.2-1.5% Cr and 0.02-0.2% Zr is heated at 920-1000 deg.C for >=30min and subjected to hot working such as hot rolling. This hot working is performed at >=60% draft at >=900 deg.C working finishing temp. Subsequently, the temp. of the ingot is dropped, without delay, to =10 deg.C/sec, preferably about (12 to 18) deg.C/sec. Then, the ingot is aged at 400-520 deg.C, preferably about 440-490 deg.C, for 1-5hr. The resulting stock is worked by machining, etc., by which a copper alloy mold for continuous casting for steelmaking, having

10. 发明专利

JPH08117971A TROUGH DEVICE FOR METAL SOLUTION 失效
公开(公告)号：JPH08117971A
公开(公告)日：1996-05-14
申请号：JP26425694
申请日：1994-10-27
申请人： MITSUBISHI MATERIALS CORP
发明人： HORI KAZUMASA , SUZUKI AKIO , NOGAMI TAKASHI , KOSHIBA YUTAKA
IPC分类号： B22D35/00
摘要： PURPOSE: To prevent or lessen the fixation of metal in the interior of a trough or the growth of the metal fixed therein by transferring a metal soln. downward at a steep angle. CONSTITUTION: The soln. flows continuously into the vertical trough 30 and falls by gravity. The falling soln. collides against the base in the lower trough 30 and rises by reaction of this time. The rising soln. collides nearly continuously against an extended surface 50. The splash of the soln. outside is prevented by this extended surface 50. The soln. rises at all times by a certain specified distance if conditions, such as the flow rate of the soln., are assumed to be nearly constant. The rising soln. comes nearly continuously into contact with the extended surface 50. The soln. coming into contact with the extending surface 50 is, therefore, heated by the succeeding soln. coming to flow continuously and is forced to flow downstream. As a result, the fixation of the soln. on the extended surface 50 is prevented.

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