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1. 发明专利

JPH1047880A HEAT TRANSFER TUBE WITH INNER SURFACE GROOVE 失效
公开(公告)号：JPH1047880A
公开(公告)日：1998-02-20
申请号：JP20724896
申请日：1996-08-06
申请人： KOBE STEEL LTD
发明人： ISHIKAWA MAMORU , KOSEKI KIYONORI , HINAKO NOBUAKI , NOGUCHI MASATAKA
IPC分类号： F28F1/40 , B21D53/06
摘要： PROBLEM TO BE SOLVED: To permit the obtaining of a high heat exchanging performance even under the condition of energy saving operation, in which the flow rate of refrigerant is small. SOLUTION: A heat transfer tube with inner surface groove is made by a method wherein a plurality of grooves are formed on one side of the strip of a metallic sheet through rolling and a tube is formed so as to keep the surface, on which the grooves are formed, at the inside, then, the abutted ends are connected through welding. Two kinds of groove groups 1, 2 having different pitches in the circumferential direction of the tube, having different twisting directions or having different twisting angles are arranged alternately in areas having different widths W1 , W2 in the circumferential direction of the tube. Further, the grooves having small twisting angle are formed on the area having wide width. When the width of the wider area is represented by a notation W1 and that of the narrower area is represented by another notation W2 , it is specified that W1 /W2 =1.1-3.0. On the other hand, the smaller twisting angle is 40-20 deg. and the larger twisting angle is 15-90 deg..

2. 发明专利

JPH08159605A HEAT-TRANSFER TUBE FOR ABSORBER 失效
公开(公告)号：JPH08159605A
公开(公告)日：1996-06-21
申请号：JP30670394
申请日：1994-12-09
申请人： KOBE STEEL LTD
发明人： ISHIKAWA MAMORU , NOGUCHI MASATAKA , TAKAHASHI HIROYUKI , HIGO TOMIO , ISHIDA MASASHI
IPC分类号： F25B37/00 , F28F1/16
摘要： PURPOSE: To provide a weight-reducible heat-transfer tube for an absorber which is excellent in a heat-transfer ability without lowering in an assembling workability to amount the tube to a refrigerator. CONSTITUTION: Absorber heat-transfer tubes 10 which comprise a plurality of horizontally laid out tubes are provided with a plurality of recessed parts 11 which extend in the tube axial direction and laid out intermittently where the center P of the recessed parts 11 between the rows of adjacent tubes in the tube peripheral direction and the center Q of the other rows between the recessed parts 11 are identical to each other about the tube axial direction while the ration Lo /L between the length Lo of the overlapped areas of the recessed parts in the adjacent rows in the tube peripheral direction and the length L of the recessed parts range from 0.2 to 0.8. The ratio between the width in the tube peripheral direction of the recessed parts and the width of recessed parts 12 between the recessed parts ranges from 0.5 to 1.5mm where the length of the recessed parts ranges from 10 to 50mm. An even area 13 having no recessed part which includes both ends in the longitudinal direction is installed to at least two locations. The ratio between a radius of curvature of a circle comprising an envelop which connects the tops of the projected parts between the recessed parts in the cross section which intersects to the tube axis at a right angle and a radius of curvature of the even area is specified to range from 0.97 to 1.03.

3. 发明专利

JPH05247695A 失效
公开(公告)号：JPH05247695A
公开(公告)日：1993-09-24
申请号：JP5000692
申请日：1992-03-06
申请人： KOBE STEEL LTD
发明人： NOGUCHI MASATAKA
IPC分类号： C25D13/00 , C25D17/12
摘要： PURPOSE:To provide the electrode for a surface treatment which can prevent the corrosion at the end of an electrode body and can be reduced in size and cost in an electrochemical treatment using an electrolyte for metal plating, resin electrodeposition, etc., as a medium. CONSTITUTION:A blind cylindrical member 6 having the corrosion resistance higher than the corrosion resistance of the electrode body 1 is fitted to the end of the electrode body 1 having a copper core material 3 having an electrical conductivity, an outer layer 2a of platinum consisting of a material having the higher corrosion resistance than the corrosion resistance of this copper core material 3 and an intermediate layer 2b of niobium. The above-mentioned electrode is constituted by fitting a cylindrical member 5 onto this blind cylindrical member 6. This cylindrical member 5 extends by a length L to the base end side of the electrode body 1 from the blind cylindrical member 6. This length L is set at >=5 times the spacing (t) between the inside surface of the magnetic cylindrical members 5 and the electrode body 1.

4. 发明专利

JPH04264378A EARTH ELECTRODE FOR SPARK PLUG 失效
公开(公告)号：JPH04264378A
公开(公告)日：1992-09-21
申请号：JP4551991
申请日：1991-02-20
申请人： NGK SPARK PLUG CO , KOBE STEEL LTD
发明人： OSHIMA TAKAFUMI , NOGUCHI MASATAKA
IPC分类号： H01T13/32
摘要： PURPOSE:To obtain earth electrode having excellent heat emitting property, high temperature oxidation corrosion resistance and spark durability by forming an earth electrode with multiple layers of clad material, and specifying the number of each layer and thickness thereof. CONSTITUTION:The most outer layer 10 of an earth electrode 9 is made of corrosion resistance nickel alloy having a room temperature heat conductivity less than 20W/mK, and a central part 11 is made of pure nickel having a room temperature heat conductivity more than 80W/mK. Multiple layers of pure nickel layer 12 and corrosion resistance nickel alloy layer 13 having a room temperature heat conductivity less than 20W/mK are located between the most outer layer 10 and the central part 11. When t1 means thickness of the most outer layer 10, t2 means thickness of the multi-layer part 14, and T means sum of thickness of the most outer layer 10 and the multi-layer part 14, 0.02

5. 发明专利

JPH04206377A GROUND ELECTRODE FOR SPARK PLUG 失效
公开(公告)号：JPH04206377A
公开(公告)日：1992-07-28
申请号：JP33046890
申请日：1990-11-30
申请人： NGK SPARK PLUG CO , KOBE STEEL LTD
发明人： OSHIMA TAKAFUMI , NOGUCHI MASATAKA
IPC分类号： H01T13/16 , H01T13/32
摘要： PURPOSE:To improve the anti-corrosive property of a ground electrode without lowering the coefficient of heat conductivity by forming the ground electrode with a core material and a covering layer to cover the core material, forming the core material of specific low nickel alloy or pure nickel and providing a covering layer of pure chrome on the outer surface of the core material. CONSTITUTION:A core material 10 which constitutes a ground electrode 9 arranged opposite to the end of a center electrode 4 is formed of low nickel alloy or nickel with the total amount of additive element being 7wt.% or less and the coefficient of heat conductivity in room temperature being 25w/mk or more, and on the outer surface of the core material 10 at least one covering layer 11 formed of pure chrome or chrome base alloy is provided. It is thus possible to improve the anti-corrosive property of the ground electrode 9 in a high temperature condition and prevent preignition due to the lower coefficient of heat conductivity.

6. 发明专利

JPH0361553B2 失效
公开(公告)号：JPH0361553B2
公开(公告)日：1991-09-20
申请号：JP17298785
申请日：1985-08-05
申请人： KOBE STEEL LTD
发明人： NOGUCHI MASATAKA , MATSUSHITA TOMIHARU , ARIMURA KAZUO , IWAI AKIRA , FURUYA MASAHARU
IPC分类号： B23K20/00

7. 发明专利

JPS6431535A METHOD AND DEVICE FOR WORKING HEAD OF LEAD PIN 失效
公开(公告)号：JPS6431535A
公开(公告)日：1989-02-01
申请号：JP18733687
申请日：1987-07-27
申请人： KOBE STEEL LTD , AYASE SEIKI KK
发明人： NOGUCHI MASATAKA , MIZOGUCHI MASAO , NAKANISHI SHIGERU , ISHIKAWA TAKESHI
IPC分类号： B21G5/00
摘要： PURPOSE:To cover the whole head face with a brazing filler metal and to prevent the peeling by placing a brazing filler metal on the tip by deferring a pin blank on a lower die and after pre-working the tip part by pressing and heading it by punch heading the head to which a brazing filler metal is sticked. CONSTITUTION:A lead pin blank 5 is deferred in the hole of a lower die 3 and the brazing filler metal 4 in larger diameter than that of the blank 5 is inserted to the hole of the upper die 2 having a header gap part 6. It is then pressed by the punch 1 of the same diameter as that of the brazing filler metal 4 and subjected to heading as well, the brazing filler metal 4 is press-welded to the tip of the blank 5 with the header gap part 6 coming into contact of the upper and lower dies 2, 3 and the head is preworked to the lead pin blank 5. Then, a heading is executed by the punch 9 having larger diameter than that of a head 5'' and simultaneously with finishing the head 5'' of the lead pin 5' a brazing filler metal 4' is coated on the whole head 5''.

8. 发明专利

JPS6356003B2 失效
公开(公告)号：JPS6356003B2
公开(公告)日：1988-11-07
申请号：JP15471485
申请日：1985-07-12
申请人： KOBE STEEL LTD
发明人： NOGUCHI MASATAKA , FURUYA MASAHARU
IPC分类号： B21C23/22 , B21B1/08 , B21C23/00

9. 发明专利

JPS6376776A MANUFACTURE OF BAR MATERIAL FOR DISSIMILAR METAL COMPOSITE PLATE 失效
公开(公告)号：JPS6376776A
公开(公告)日：1988-04-07
申请号：JP22288186
申请日：1986-09-19
申请人： KOBE STEEL LTD
发明人： IWAI AKIRA , MIZOGUCHI MASAO , NOGUCHI MASATAKA , ONODA KAZUYOSHI
IPC分类号： B23K20/00
摘要： PURPOSE:To improve a joining strength, etc., by activating the surfacers of the sheath material and core material consisting of dissimilar metals, press- fitting a joining interface by a cold drawing, then, performing a hot rolling by sealing both ends of the press-fitted boundary. CONSTITUTION:The sheath material 1 and core material 2 consisting of dissimilar metals are activated by an acid liquid, etc., and engaged. After performing the clearance fit of the sheath material 1 and core material 2 in this state with their cold drawing the joining interface of the sheath material 1 and core material 2 is press-fitted with a cold drawing. In succession, the fitted material is cut in the necessary length, a machining 3 is performed at the center of the core material 2 on both end faces as well and the peripheral edge thereof is sealed by a TIG welding, etc. A composite plate bar material is obtd. with the hot rolling of this material finally. Owing to the dissimilar metal being cleanly activated and press-fitted, then, subjected to a diffused junction in hot treatment, the improvement of the joining strength and the optional setting of the unit weight of a product are enabled.

10. 发明专利

JPS6376775A CLAD MATERIAL FOR SPECTACLES FRAME 失效
公开(公告)号：JPS6376775A
公开(公告)日：1988-04-07
申请号：JP22339986
申请日：1986-09-19
申请人： KOBE STEEL LTD
发明人： IWAI AKIRA , NOGUCHI MASATAKA , ONODA KAZUYOSHI
IPC分类号： B23K20/00 , B32B15/01
摘要： PURPOSE:To improve the high-temp. strength and workability of a product by cladding a Ti sleeve material on the surface of a Ti alloy core material. CONSTITUTION:The core material is formed of the Ti alloy formed by adding one or >=2 kinds of additive elements such as Al, V and Mo to Ti. The Ti alloy core material is clad with the Ti sleeve material, then the stock is extruded by the hot isostatic extruder, thus a wire rod is manufactured. Such a wire rod is subjected to cold drawing, annealing and softening treatment, and cold drawing successively to obtain a Ti-Ti alloy clad wire rod having a prescribed size. Since the Ti alloy material having high strength is used in the core wire part, the core material has the strength and the sleeve material part is made of low-strength Ti to permit the easy plastic deformation thereof. Both the high-temp. strength and workability of the spectacles frame product are, therefore, improved by the above-mentioned method.

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