专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH08225917A THERMAL SPRAYING METHOD ONTO MOLD FOR CONTINUOUS CASTING 失效
公开(公告)号：JPH08225917A
公开(公告)日：1996-09-03
申请号：JP15493395
申请日：1995-06-21
申请人： NIPPON STEEL CORP , DAIICHI METEKO KK
发明人： HAMAYA HIDEKI , ICHIYAMA YASUTOMO , KITAGUCHI SABURO , OBARA MASAHIRO , YURIOKA NOBUTAKA , KUROKI MASATSUGU , SHIMA TETSUO , KASAI YOSHINORI , TANNO HITOSHI , SAKAMOTO TOKUHACHIROU , SASAKI MITSUMASA , NAKAGAWA MASAHIRO , ISHIDA MAKOTO
IPC分类号： C23C4/12 , B22D11/04 , B22D11/059 , C23C26/02 , C23C28/00
摘要： PURPOSE: To provide the thermal spraying technique to a mold for continuous casting, particularly to the long sides thereof, in which even if fusing treatment after the thermal spraying is not executed, the high adhesion is obtained without exfoliating the film. CONSTITUTION: After forming Ni-electroplating having 0.1-2mm thickness to a part or the whole of the mold surface composed of copper or copper alloy, blast treatment is executed onto this plated surface so as to become 2-8 Ra roughness. Successively, after heating the mold at 50-100 deg.C, the thermal spraying of an Ni base self-fluxing alloy composed of (1) 60-80% Ni, 15-25% Cr, 1.5-5% B, 2-6% Si, 0.5-1% C, 3-4% Fe or (2) 5-10% Cr, 1.5-3.0% B, 2-4% Si, 0.09-0.60% C, 1.5-3.5% Fe and the balance Ni, and having 10-60μm grain diameter, is executed by using oxygen/hydrogen flame at 1300-2300m/s flame speed and thereafter, the film surface is finished to 1.6-6.3S Rmax.

2. 发明专利

JPH0846125A LEAD FRAME 失效
公开(公告)号：JPH0846125A
公开(公告)日：1996-02-16
申请号：JP17844094
申请日：1994-07-29
申请人： NIPPON STEEL CORP
发明人： SHIMODA NOBUYUKI , KITAGUCHI SABURO , YURIOKA NOBUTAKA
IPC分类号： C23C4/10 , C23C30/00 , H01L23/50
摘要： PURPOSE:To prevent crack at the time of reflow mounting and during actual use by forming a mixture film of a metal and a metal oxide having a specified thickness on the surface and the rear of a die pad surrounded by leads thereby enhancing the bonding strength between a lead frame and a seal resin. CONSTITUTION:A die pad 3 surrounded by leads 15 is coated, on the surface and rear thereof, with a mixture film or an inclination film 21. the thermal spraying method is most effective as a method for forming the film. The film material being employed is based on Al-Al2O3, Si-SiO2, Si-Al2O3 or Al-SiO2. In case of the mixture film, the mixing ratio of metal is preferably set in the range of 30-70% in order to satisfy the adhesion between the metal and die pad and between the metal oxide and resin. Since the adhesion effect is not achieved when the coating is too thin, the thickness of the coating is set at 1mum or above and the upper limit is set at 30mum in viewpoint of cost and labor.

3. 发明专利

JPH081268A FORGING TOOL HAVING GRADED FUNCTION AND ITS PRODUCTION 失效
公开(公告)号：JPH081268A
公开(公告)日：1996-01-09
申请号：JP16075094
申请日：1994-06-21
申请人： NIPPON STEEL CORP
发明人： MIKI TAKESHI , TODA MASAHIRO , KADA OSAMU , KITAGUCHI SABURO
IPC分类号： B21J13/02 , C23C4/04 , C23C4/10 , C23C4/12
摘要： PURPOSE:To provide the above tool having the high strength to withstand repetitive use by consisting of its inside of steel or cast iron and specifically and continuously changing the weight mixing ratios of ceramics to the material components in its inside and extreme surface between the specific parts of surface layer parts which come into contact with a work piece. CONSTITUTION:The tool steel having both of strength and toughness is preferably used as the internal material of dies and the cast iron is equally usable for the dies with which the load is lower. The dies 2, 4 and the punch 5 are formed to the mixed state of the ceramics from 0.5 to 3mm in their surface layer parts. The range of the depth is determined from the lower limit at which an effect of heat insulation is exhibited and the upper limit at which the strength and toughness are assured. The mixing ratios of the ceramics are continuously changed in such a manner that the range of 0.6 to 1.0 by weight is attained at the extreme surface. The kinds of the ceramics are ZrO2, SiC, Al2O3, etc., having a heat insulating effect and strength. As a result, intricate die forging is made possible and stages are shortened.

4. 发明专利

JPS61286077A CORE METAL FOR STEEL TUBE ROLLING MILL 失效
公开(公告)号：JPS61286077A
公开(公告)日：1986-12-16
申请号：JP12597985
申请日：1985-06-12
申请人： NIPPON STEEL CORP
发明人： KITAGUCHI SABURO , HONMA HIROYUKI , WATANABE KAZUO
IPC分类号： B23K20/00 , B21B25/00
摘要： PURPOSE:To obtain the core metal for steel tube rolling having excellent heat and impact resistances by performing a hot isotropic pressing treatment after forming a metallic thermal spraying film on the surface of the core metal to cover an expensive surface layer on inexpensive core metal material. CONSTITUTION:The core metal 1 of carbon steel covered by the thermal spraying film 2in metallic powder of heat and wear resistance is contained in the container 3 of similar shape to the core metal, covered by a bottom plate 4 and the container 3 and bottom plate 4 are subjected to enclosing treatment by the welding of electron beam 5. The coating layer having extremely highjoinability is obtd. by enhancing the density of the thermal spraying layer simultaneously with promoting the diffusion on the joining interface of the film layer and core metal by performing the hot isotropic pressing treatment for a fixed time under the atmosphere of high pressure and high temp. with inert gas as the pressure medium.

5. 发明专利

JPS61194186A PRODUCTION OF COMPOSITE STEEL PIPE 失效
公开(公告)号：JPS61194186A
公开(公告)日：1986-08-28
申请号：JP3463285
申请日：1985-02-25
申请人： NIPPON STEEL CORP
发明人： KITAGUCHI SABURO , HONMA HIROYUKI
IPC分类号： C23C2/02 , C23C28/00 , C23D13/00
摘要： PURPOSE:To produce easily a composite steel pipe having a different metallic layer on the surface by coating and calcining preliminary glaze for enamel on the surface of a steel plate then immersing the pipe into the melt of the different metal in the stage of coating the different metal on the surface of the steel pipe. CONSTITUTION:The glaze for enamel consisting essentially of SiO2, B2O3, Na2O, CaO, Al2O3 or K2O is coated on the surface of the steel pipe 2 by spraying, etc. to 0.5-20mm thickness in the stage of coating the different material such as, for example, 'Hastelloy(R)' on the outside surface of the pipe 2. While the glazed steel pipe 2 is held and rotated by a holding mechanism 1, the coating layer is calcined at 600-900 deg.C in the atm. by a heating coil 6 to melt the iron oxide on the surface of the pipe 2 and to melt the same in the glaze by which the surface of the steel pipe is cleaned. A plug 3 for preventing the intrusion of the molten metal is attached to the top end of the pipe 2 and the pipe is immersed into the molten 'Hastelloy(R)' metal in a heating furnace 7, by which the composite steel pipe having the 'Hastelloy(R)' layer is produced on the surface of the pipe 2.

6. 发明专利

JPS512640A 失效
公开(公告)号：JPS512640A
公开(公告)日：1976-01-10
申请号：JP7267174
申请日：1974-06-25
申请人： NIPPON STEEL CORP
发明人： HAGIWARA TOMOO , HASEBA SUMICHIKA , KITAGUCHI SABURO , TAKEI SHIN , MORISHITA SHIGERU
IPC分类号： B23K31/00 , B23K9/095

7. 发明专利

JPH10313214A ANTENNA AND ITS MANUFACTURE 失效
公开(公告)号：JPH10313214A
公开(公告)日：1998-11-24
申请号：JP12254197
申请日：1997-05-13
申请人： NIPPON STEEL CORP
发明人： KITAGUCHI SABURO , FUJI MASAO , UEMATSU MASAHIRO , TAKAHASHI SHINJI
IPC分类号： H01P11/00 , H01Q13/22
摘要： PROBLEM TO BE SOLVED: To provide a waveguide antenna in which a slot plate and a board are bonded surely with high precision. SOLUTION: A slot plate 1 and a board 2 are made of an Mg aluminum alloy, and a junction plane of the slot plate 1 and the board 2 is diffused and bonded by being heated and pressed at a temperature at or around a solid-liquid coexistent region of the aluminum alloy. Or the slot plate 1 or the board 2 is made of an Mg aluminum alloy and the other is made of an Si aluminum alloy. Or the slot plate 1 or the board 2 is made of a Cu aluminum alloy and the other is made of an Si aluminum alloy.

8. 发明专利

JPH08186203A HEAT SPREADER FOR SEMICONDUCTOR DEVICE, SEMICONDUCTOR DEVICE WHEREIN IT IS USED AND MANUFACTURE OF THE HEAT SPREADER 失效
公开(公告)号：JPH08186203A
公开(公告)日：1996-07-16
申请号：JP2574095
申请日：1995-02-14
申请人： NIPPON STEEL CORP
发明人： OKIKAWA SUSUMU , KITAGUCHI SABURO
IPC分类号： H01L23/373
摘要： PURPOSE: To improve heat dissipation property, to reduce thermal expansion difference with an Si chip and to realize further high integration by forming a heat spreader of a stripe-like metallic body wherein Fe-Ni alloy and Cu metal are laminated alternately and arranged in stripes in one direction inside a chip mounting surface. CONSTITUTION: In a heat spreader 2, a stripe-like metallic body 28 is formed wherein Fe-Ni alloy 21 and Cu metal 22 are laminated alternately and arranged in stripes in one direction inside a chip mounting surface. An interval (d) of the stripe is made 0.1 to 2.0mm and a width (a) of the Fe-Ni alloy 21 is made 0.05 to 1.0mm and a width (b) of the Cu metal 22 is made 0.05 to 1.0mm. Thereby, good heat dissipation property is realized, high integration of a circuit is possible, and low frequency of defect generation and high reliability can be realized.

9. 发明专利

JPH08107177A LEAD FRAME FOR PLASTIC PACKAGE, MANUFACTURING METHOD THEREOF, AND PLASTIC PACKAGE USING THIS LEAD FRAME 失效
公开(公告)号：JPH08107177A
公开(公告)日：1996-04-23
申请号：JP24042794
申请日：1994-10-04
申请人： NIPPON STEEL CORP
发明人： OKIKAWA SUSUMU , KITAGUCHI SABURO
IPC分类号： H05K1/18 , H01L23/50
摘要： PURPOSE: To improve the heat radiation of a lead frame for plastic packages, reduce the thermal expansion difference from an Si chip and avoid peeling and cracking the resin by cutting out a stripe-like thin metal sheet composed of two specified metals alternately laminated and disposed like a unidirectional stripe in the plane of the sheet. CONSTITUTION: The title lead frame is made by cutting out a stripe-like thin metal sheet composed of Fe-Ni alloys 2 and Cu-contained metals 3 alternately laminated and disposed like a unidirectional stripe in the plane of the sheet. The alloy 2 may use an alloy having a low thermal expansion coefficient such as 42% Ni alloy or 35-37% Ni alloy called 'Invar', and the metal 3 may use Cu or Cu alloy such as Cu-Pb alloys and Cu-Sn alloys having a thermal conductivity as good as Cu's thermal conductivity of 393W/mK+10%. As for a LOC structured plastic package, inner leads 5 are cut out parallel to stripes and bus bars 7 are cut out parallel to the stripes.

10. 发明专利

JPH0867957A NON-MIGRATION TYPE PLASMA SPRAYING CLADDING METHOD 失效
公开(公告)号：JPH0867957A
公开(公告)日：1996-03-12
申请号：JP20397094
申请日：1994-08-29
申请人： NIPPON STEEL CORP
发明人： HAMAYA HIDEKI , ICHIYAMA YASUTOMO , KITAGUCHI SABURO , OBARA MASAHIRO , SAITO TORU , YURIOKA NOBUTAKA , INMAKI YOSHIHIRO
IPC分类号： C23C4/02 , C23C4/06 , C23C4/12
摘要： PURPOSE: To form thermal spraying films having high intergranular strength without having pores in these films by forming a specific amt. of the films on a substrate heated to its m.p. or below, then forming the films of a specific thickness by plasma spraying while heating the film surface to the b.p. of the films or below. CONSTITUTION: The substrate (low-carbon steel, etc.) is heated to a temp. range of 100 to the m.p. of the substrate or below prior to thermal spraying and the film (Ni-base alloy, etc.) of a thickness of 0.1 to lmm is formed on the substrate. While the film surface is heated to a temp. range from the m.p. of the film up to the b.p. or below by a high frequency plasma, the molten layer is subjected to thermal spraying, by which the films are formed to a thickness of 2 to 20mm. As a result, the thick thermal spraying films which have no reaction layers at the boundary of the base material and the films, are dense, have high strength and have excellent wear resistance are formed.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式