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1. 发明专利

JPH05329682A WELDING WIRE AND WELDING METHOD FOR GALVANIZED STEEL SHEET 失效
公开(公告)号：JPH05329682A
公开(公告)日：1993-12-14
申请号：JP16039092
申请日：1992-05-26
申请人： SUMITOMO METAL IND , SUMIKIN WELDING IND , KYODO SANSO
发明人： UCHIHARA MASATO , TAKASO MASASHI , KO TAKAO , TSUMURA HIROYASU , KURIMOTO TAKASHI , YOKOYAMA KAORU , MIYAZAKI HISAHIKO
IPC分类号： B23K9/16 , B23K9/173 , B23K9/23 , B23K35/30 , C22C38/00 , C22C38/14
摘要： PURPOSE:To decrease pits, blow holes and spatters in gas shielded arc welding of galvanized steel sheets. CONSTITUTION:A steel wire 2 contg, by weight %, =1% and

2. 发明专利

JPH05329649A WELDING METHOD FOR SURFACE TREATED STEEL SHEETS 失效
公开(公告)号：JPH05329649A
公开(公告)日：1993-12-14
申请号：JP16218792
申请日：1992-05-27
申请人： SUMITOMO METAL IND , SUMIKIN WELDING IND
发明人： UCHIHARA MASATO , TAKASO MASASHI , KO TAKAO , TSUMURA HIROYASU , KURIMOTO TAKASHI , YOKOYAMA KAORU
IPC分类号： B23K9/00 , B23K9/23
摘要： PURPOSE:To prevent the occurrence of a pit and a blowhole even when film thickness is large by cooling the vicinity of a predetermined part to be welded to the specified temperature to perform welding. CONSTITUTION:The surface treated steel sheets are subjected to arc welding. The vicinity of the predetermined part to be welded is cooled to

3. 发明专利

JPH08281383A ROLL FOR CONTINUOUSLY CASTING METALLIC STRIP 失效
公开(公告)号：JPH08281383A
公开(公告)日：1996-10-29
申请号：JP8246395
申请日：1995-04-07
申请人： SUMITOMO METAL IND
发明人： SHIRAI YOSHIHISA , TAKASO MASASHI , KAWAHIGASHI FUMIO
IPC分类号： B22D11/04 , B22D11/059 , B22D11/06
摘要： PURPOSE: To stably and continuously produce a cast strip having good quality while securing slow cooling as the nature of a thermal-sprayed roll and preventing such surface defect on a cast slab as rolled-in waterial and linear recessed defect by forming the thermal-sprayed film of a heat resistant metal, etc., having a specific surface roughness on the surfaces of a nozzle and a slidingly moved cooling roll to the nozzle. CONSTITUTION: In the roll for continuously casting a metallic strip, the thermal- sprayed film of heat resistant metal, cermet or ceramic having >=1μm surface roughness is forven on the surface of the cooling roll 1 slidingly moving to the nozzle. By this constitution, a solidified shell 4a at the tip part of the nozzle is not stuck to the nozzle 2 and this solidified shell is shifted together with the cooling roll 1 as the strip 4. Therefore, the rolled-in waterial and a breakage are not developed. Further, since gas expanded and exhausted from blow hole in the thermal-sprayed layer is escaped through air layer between the strip 4 and the cooling roll 1, the linear recessed defect is not developed. Further, since the thermal-sprayed roll 1 is used, the solidified shell is slowly cooled and the interval defect is not developed, too.

4. 发明专利

JPH05343182A 失效
公开(公告)号：JPH05343182A
公开(公告)日：1993-12-24
申请号：JP17198392
申请日：1992-06-04
申请人： SUMITOMO METAL IND
发明人： NARISEI TORU , TAKASO MASASHI
IPC分类号： H05B7/144 , H05B7/18
摘要： PURPOSE:To rotate arc around an electrode central line to ease the magnetic force causing the curve of the arc, and stabilize the arc by supplying a current to current-carrying passages radially formed around the electrode central line in order. CONSTITUTION:When a current is carried to any of four leads 5 of a radial wiring part 6, the magnetic field generated thereby is generated vertically to an arc A and attracts the arc A closer to the opposite side to the leads 5 by the magnetic force with the lead 5. Currents A-D are carried to the leads 5 in order, whereby the arc A can be rotated around the electrode central line to ease the magnetic force causing its curve, and stabilize the arc. Even when the arc length is extended to increase voltage, the arc is stabilized, and a power source can be highly efficiently utilized. Since no gas is used fro stabilization, operating cost is low, and the electrode peripheral equipment can be simplified.

5. 发明专利

JPH05305478A 失效
公开(公告)号：JPH05305478A
公开(公告)日：1993-11-19
申请号：JP10690592
申请日：1992-04-24
申请人： SUMITOMO METAL IND
发明人： TAKASO MASASHI
IPC分类号： B23K35/30 , C22C38/00 , C22C38/26
摘要： PURPOSE:To enable the efficient welding of members of Nb-contg. ferrite steels by large heat input welding without generating welding cracks. CONSTITUTION:The bare welding electrode or wire for gas shielded arc welding of Nb-contg. ferritic stainless steel members is formed of the compsn. consisting, by weight %,

6. 发明专利

JPH0593282A METHOD FOR PADDING SELF-LUBRICATING COMPOSITE MATERIAL 失效
公开(公告)号：JPH0593282A
公开(公告)日：1993-04-16
申请号：JP16871791
申请日：1991-06-12
申请人： SUMITOMO METAL IND
发明人： TAKASO MASASHI
IPC分类号： B23K10/02 , C23C24/00
摘要： PURPOSE:To pad a self-lubricating composite material wherein an inorg. solid lubricant of MoS, WS2, C, BN, etc., is dispersed in a base metal. CONSTITUTION:The base metal powder 31a is melted by a heat source such as a plasma arc A and struck against the surface of a base material 20, and the base metal is welded to the base material 20. A lubricant powder 32 consisting of an inorg. lubricant is charged into the molten metal 31b welded to the surface of the base material 20. The lubricant powder 32 with the surface coated with the metal is not passed through the plasma arc A and charged into the molten metal 31b. The charged lubricant powder 32 is uniformly dispersed in the molten metal 31b without being degenerated, and a padding layer 30 of specified quality is formed.

7. 发明专利

JPH04268071A VAPOR DEPOSITION METHOD WITH ENERGY BEAM 失效
公开(公告)号：JPH04268071A
公开(公告)日：1992-09-24
申请号：JP4892591
申请日：1991-02-21
申请人： SUMITOMO METAL IND
发明人： UCHIHARA MASATO , TAKASO MASASHI
IPC分类号： C23C14/30
摘要： PURPOSE:To obtain a high vapor deposition speed with the same output without increasing the output of an energy beam. CONSTITUTION:An electron beam 5 generated from a cathode 3 for generating the electron beam is converged to >=0.5kW/mm by a converging coil 10. The surface of a material 2 to be evaporated in a crucible 1 is irradiated with the electron beam of a high energy density by a deflecting and scanning coil 11 and is linearly scanned at >=200mm/sec speed. The surface is scanned at

8. 发明专利

JPH03207847A HIGHLY CORROSION RESISTANT COMBINEDLY COATED STEEL AND ITS PRODUCTION 失效
公开(公告)号：JPH03207847A
公开(公告)日：1991-09-11
申请号：JP127690
申请日：1990-01-08
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO , TSUDA TETSUAKI , UCHIDA JUNICHI , SETO HIROHISA , TAKASO MASASHI , KO TAKAO
IPC分类号： C23C4/06 , C23C28/02
摘要： PURPOSE:To obtain a superior highly corrosion resistant combinedly coated steel by subjecting a steel stock to Zn type plating and further to thermal spraying with Al-base metal. CONSTITUTION:After a Zn type plating layer 2 is applied to the surface of a steel 1, thermal spraying with Al or Al alloy is carried out while maintaining this steel at 100-400 deg.C. By this method, the combinedly coated steel where the Zn plating layer 2 is formed on the surface of the steel 1 and further an Al or Al-alloy thermally sprayed layer (thermally sprayed grains) 3 is formed on the above layer 2 can be obtained. This coated steel has extremely superior corrosion resistance.

9. 发明专利

JPH03192697A TEMPERATURE AND SPEED LOWERING PREVENTION METHOD FOR SHIELD PLASMA JET 失效
公开(公告)号：JPH03192697A
公开(公告)日：1991-08-22
申请号：JP33198889
申请日：1989-12-20
申请人： SUMITOMO METAL IND
发明人： NARISEI TORU , KOMIZO YUICHI , TAKASO MASASHI
IPC分类号： H05H1/34 , B23K10/00
摘要： PURPOSE:To prevent temperature and speed of shield plasma from lowering by using an inert gas heated to a prescribed temperature as a shield gas which is so sprayed as to surround the plasma jet. CONSTITUTION:A shield gas is so sprayed through gas spraying outlets 5-5 arranged in the circumference of plasma nozzle 5-3 as to surround plasma jet. An inert gas heated to a prescribed temperature is used as a shield gas. The temperature of the shield gas is not specially limited but within a range of 300-500 deg.C, preferably 400-500 deg.C. In the case of lower than 300 deg.C, heating effect of the shield gas is small and on the other hand, the heating effect becomes the maximum at about 500 deg.C and heating effect becomes saturated even if further heating is carried out, resulting in heating energy loss. In this way, temperature and speed of plasma jet are prevented from lowering.

10. 发明专利

JPH0328272B2 失效
公开(公告)号：JPH0328272B2
公开(公告)日：1991-04-18
申请号：JP6295384
申请日：1984-03-29
申请人： SUMITOMO METAL IND
发明人： TAKASO MASASHI , YAMAUCHI NOBUYUKI , MIURA MINORU
IPC分类号： B23K26/21 , B23K26/26 , B23K101/06

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