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1. 发明专利

JPS6313205A CONDUCTOR FOR ELECTRONIC EQUIPMENT 失效
公开(公告)号：JPS6313205A
公开(公告)日：1988-01-20
申请号：JP15599586
申请日：1986-07-04
申请人： FUJIKURA LTD
发明人： MIYAUCHI KENICHI , KAMEDA HIDEKI , WAKABAYASHI MOTOHIKO , OGUCHI SOSUKE
IPC分类号： H01B5/02 , H01B5/08

2. 发明专利

JPS6230866A PRODUCTION OF COATED STEEL WIRE 失效
公开(公告)号：JPS6230866A
公开(公告)日：1987-02-09
申请号：JP16913885
申请日：1985-07-31
申请人： FUJIKURA LTD
发明人： TOMINAGA HARUO , TAKAYAMA TERUYUKI , MIYAUCHI KENICHI , YAMAGUCHI TETSUO
IPC分类号： C23C2/04 , C23C2/38 , C23C28/02
摘要： PURPOSE:To continuously obtain a conductive coated steel wire having excellent resistance to wear and corrosion and high strength by scalping a copper coated steel wire to form a core wire, then passing the core wire through a copper bath and forming a coating layer at a specific coating rate. CONSTITUTION:The steel wire A1 is descaled 2 and pretreated 3 and thereafter the steel wire is fed to a plating device 4 where the copper (alloy) coated steel wire A2 is formed. The steel wire is then subjected to drawing 6 after washing and drying 5. Such coated steel wire A2 is supplied to a dip forming device 10 where part of the coating layer is removed by a scalping die 16 to form the core wire A3. The core wire A3 is supplied to a crucible 20 in an introducing housing 15 in which a reducing atmosphere is maintained to form the coating layer of the copper (alloy) at >=40% coating rate. Such coated steel wire A4 is pulled into an ejection housing 25 where the wire is subjected to rolling 28 and cooling 29; thereafter, the wire is taken up on a coiler 35 by pinch rolls 34.

3. 发明专利

JPS60184461A DIP FORMING METHOD 失效
公开(公告)号：JPS60184461A
公开(公告)日：1985-09-19
申请号：JP3905084
申请日：1984-03-01
申请人： FUJIKURA LTD
发明人： TAKAYAMA TERUYUKI , YAMAGUCHI TETSUO , SAKAI MASAAKI , MIYAUCHI KENICHI
IPC分类号： B22D23/04 , B22D11/00
摘要： PURPOSE:To enable long-time stable operation of a dip forming method by cleaning up the surface of a seed wire and maintaining the atmosphere of the inert gas or weak reducing gas above the atmospheric pressure in the passage atmosphere until the seed wire is dipped into a molten metal. CONSTITUTION:A seed wire 7 to be used as a core is dipped in a molten metal 5 to stick and solidify the molten metal 5 around the wire 7 and to manufacture a casting rod 9. Such rod is continuously hot rolled, by which a clad wire rod is obtd. A passage atmosphere 11 in which the seed wire 7 having the surface cleaned by scalping 6 travels to the insertion port 2 for the seed wire of a crucible 1 is maintained in the atmosphere of the inert gas or weak reducing gas under the pressure above the atmospheric pressure. The product having good quality is thus obtd. without requiring any special mechanism for maintaining airtightness around the machine or jig. The maintenance of the equipment is made simple and the long-term stable operation is made possible.

4. 发明专利

JPS5548458A DIP FORMING METHOD 失效
公开(公告)号：JPS5548458A
公开(公告)日：1980-04-07
申请号：JP12121578
申请日：1978-10-03
申请人： FUJIKURA LTD
发明人： YAMAGUCHI TETSUO , SAKAI MASAAKI , SUGIYAMA NORIO , MIYAUCHI KENICHI
IPC分类号： B22D23/04 , B22D11/01 , B22D19/00
摘要： PURPOSE:To heat efficiently electrolytic copper in a preheating furnace to a desired temperature in a short time in a marking method for manufacture of a roughing- down wire of copper, by previously applying a thermal-absorption facilitating liquid of excellent thermal absorptivity containing neither Pb nor Zn on the surface of electrolytic copper when electrolytic copper is taken in the preheating furnace. CONSTITUTION:On the surfacae of elecrolytic copper 1 in a plate shape, a thermal- absorption facilitating liquid (e.g. China ink, black paint, etc.) of excellent absorptivity containing neither Pb nor Zn is previously applied. Next, electroytic copper 1 is put in preheating furnace 2, preheated up to a fixed temperature by heating method 6 such as a gas burner, and then fused in desolving furnace 3. Next, molten copper 4 is carried to holding furnace 7 and crucible 8. In crusible 8, base material 5 of copper runs from the lower part to the upper part and molten copper 4 sticks to the surface of base material 5 and is then solidified. In this method, even if a component if the liquid would be contained in the molten copper, neither Pb nor Zn is contained in the liquid, so that it will never exert any influence upon the mechanical and electrical properties of copper.

5. 发明专利

JPH01231213A COPPER COVERED STEEL WIRE 失效
公开(公告)号：JPH01231213A
公开(公告)日：1989-09-14
申请号：JP5789588
申请日：1988-03-10
申请人： FUJIKURA LTD
发明人： TAKAYAMA TERUYUKI , TOMINAGA HARUO , NISHIYAMA SADAYOSHI , MIYAUCHI KENICHI
IPC分类号： B21F19/00 , H01B5/02 , H01B5/08 , H01B7/00
摘要： PURPOSE:To enable obtaining a stranded wire superior in both flexing resistance and solderbility by covering the core of a steel wire having a specific carbon content with a copper layer. CONSTITUTION:The core of a steel wire containing 0.005 to 0.06 weight percentage of carbon is covered with a copper layer. When the carbon content exceeds 0.06 weight percentage, the degree of work hardening of the steel wire increases so much that the steel wire is liable to fracture when subjected to a bending and twisting processes. Also, when the carbon content drops below 0.005 weight percentage, the steel wire is frequently fractured due to an intervening material. Preferably. the coverage ratio of the copper is 20 to 60% by a volume ratio. According to the aforesaid construction, it is possible to obtain a wire for stranding superior in solderbility and platability on the surface and in strength against repeated and remarkable bending processes.

6. 发明专利

JPS62279067A FORMING APPARATUS FOR IMMERGED COATING 失效
公开(公告)号：JPS62279067A
公开(公告)日：1987-12-03
申请号：JP12032586
申请日：1986-05-27
申请人： FUJIKURA LTD
发明人： TOMINAGA HARUO , TAKAYAMA TERUYUKI , MIYAUCHI KENICHI , YAMAGUCHI TETSUO
IPC分类号： B22D23/04
摘要： PURPOSE:To produce the clad material having high quality without any sticking broken pieces to a core material caused to breaking of wire at wire drawing work by coating the slipping part of the core material for a bushing member by ceramic material in a forming apparatus for immersed coating. CONSTITUTION:In the upper part of introducing chamber, the bushing member 4 is inserted, and coated on the whole base material 4A composing of heat resistant alloy having almost hollow pipe state by the ceramic material 4B, having substancially at least one or more among carbide kind ceramic, oxide kind ceramic and nitride kind ceramic, as main composition. A guide hole of the core material is formed in the center part of the base material 4A, in which has a tapered part 4C formed as tapering state from inlet to outlet of the core material and the cylindrical sliding part 4D of core material formed as connecting to the tapered part 4C.

7. 发明专利

JPS62112767A DIP COATING FORMING DEVICE 失效
公开(公告)号：JPS62112767A
公开(公告)日：1987-05-23
申请号：JP25318585
申请日：1985-11-12
申请人： FUJIKURA LTD
发明人： TOMINAGA HARUO , TAKAYAMA TERUYUKI , MIYAUCHI KENICHI , YAMAGUCHI TETSUO
IPC分类号： B22D11/00 , C23C2/04 , C23C2/14 , C23C2/38
摘要： PURPOSE:To provide the titled device which decreases the displacement of the amt. of the molten metal in a crucible in spite of a fluctuation in the molten metal level on the upper stream side of the molten metal supply of the crucible which allows the passage of a seed wire from an insertion hole through the inside of the molten metal and yields a coated wire having stable strength and dielectric constant at a stabilized coating rate by providing a partition wall having a small hole on the above- mentioned upper stream side. CONSTITUTION:A reducing gas is supplied 18 to a pressure furnace 15 to pressurize the molten metal Y in the furnace 15 with a prescribed pressure and to increase the molten metal level in a tapping furnace 16 so that the molten metal Y is supplied into the crucible 2. The seed wire B is passed in this state through the molten metal Y in the crucible 2 and is cooled 7 to obtain the coated wire C. The small hole 31 of the partition wall 30 controls the movement of the molten metal Y eve if the molten metal level in the crucible 2 is fluctuated by the minor fluctuation generated in the pressure to be exerted to the furnace 15. The fluctuation rate of the molten metal level in the partition wall 30 is, therefore, controlled to the value smaller than conven tional practice. The thickness of the coating layer to be formed on the outside of the seed wire B is thus made uniform and the fluctuation of the coating rate is suppressed. The coated wire C having stable quality is thus obtd.

8. 发明专利

JPS60127068A DIP FORMING METHOD 失效
公开(公告)号：JPS60127068A
公开(公告)日：1985-07-06
申请号：JP23526283
申请日：1983-12-14
申请人： FUJIKURA LTD
发明人： TAKAYAMA TERUYUKI , YAMAGUCHI TETSUO , SAKAI MASAAKI , MIYAUCHI KENICHI
IPC分类号： B22D23/04 , B22D11/00
摘要： PURPOSE:To enable easy production of a clad material having different cladding rates with a dip forming method in which a metallic wire rod is passed through the inside of molten copper and a copper cladding material is produced by preheating the metallic wire rod and passing the same through the inside of the molten copper. CONSTITUTION:The melt of the copper melted in a melting furnace 3 is put into a graphite crucible 2 and a metallic wire 6 such as a copper wire or steel wire is inserted into the crucible from the inlet 1 in the bottom thereof and is pulled up in the molten copper 5. The wire is cooled in a cooling column 7 to solidify the molten copper sticking on the surface of the wire 6. The clad material is thus produced. The amt. of the molten copper sticking and solidifying on the surface of the wire 6, i.e., cladding rate is determined by the quantity of the heat reception and transmission generated between the wire 6 and the molten copper in the crucible. The cladding rate of the clad material is adjustable freely by preheating the wire 6 to a specific temp. with an electrical heater 12 in a vessel 8 in which a nonoxidizing atmosphere of a vaccum or Ar or the like is maintained prior to insertion of the wire 6 into the crucible 2.

9. 发明专利

JPS59177809A Copper roughly drawing wire by dip forming 失效
标题翻译：通过DIP形成铜箔粗线
公开(公告)号：JPS59177809A
公开(公告)日：1984-10-08
申请号：JP5300083
申请日：1983-03-28
申请人： Fujikura Ltd
发明人： TAKAYAMA TERUYUKI , MIYAUCHI KENICHI , SAKAI MASAAKI
IPC分类号： B22D23/04 , H01B5/00 , H01B5/02 , H01B13/00

10. 发明专利

JPH0687066A PRODUCTION OF COPPER-COATED STEEL WIRE 失效
公开(公告)号：JPH0687066A
公开(公告)日：1994-03-29
申请号：JP24163992
申请日：1992-09-10
申请人： FUJIKURA LTD
发明人： TOMINAGA HARUO , TAKAYAMA TERUYUKI , MIYAUCHI KENICHI
IPC分类号： B05C3/12 , B22D23/04 , C23C2/02 , C23C2/04 , C23C2/38
摘要： PURPOSE:To produce a copper-coated steel wire capable of evading the breakage of a nozzle inserted with a seed wire arranged at the bottom part of a crucible and the breaking of the seed wire, uniform in the thickness of the coated layer and excellent in the adhesion of the coated layer and the seed wire. CONSTITUTION:The hole diameter of an equal diameter straight part 21b in a hole provided in a nozzle 21 arranged at the bottom part of the crucible 1 for holding molten copper is set at larger than the diameter of the steel wire as the seed wire 7 by 0.05-0.40mm and the length of this equal diameter straight part 21b is made to be 5-30mm. Further, the atmosphere of passage where the seed wire 2 enters to the crucible 1 after cleaning the surface of the steel wire is made to be inert gas or weak reducing gas atmosphere at 160-600mmHg absolute pressure.

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