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61. 发明专利

JPH03184839A MANUFACTURE OF BLACK DAMPING STEEL SHEET 失效
公开(公告)号：JPH03184839A
公开(公告)日：1991-08-12
申请号：JP32497189
申请日：1989-12-15
申请人： KAWASAKI STEEL CO
发明人： HOSODA HIROSHI , SHINOZAKI MASATOSHI
IPC分类号： B32B15/08
摘要： PURPOSE:To enhance both L value of the degree of blackness and appearance by laminating steel sheets to form the damping steel sheet and thereafter performing blackening treatment on the surface thereof. CONSTITUTION:Steel sheets S1, S2 being in a state wherein resin 2 is sandwiched are pressed by a pair of press rolls 3, 3 while the steel sheets are heated, contact-bonded and integrated to form one sheet of damping steel sheet 1a. Then Zn-Ni plating is performed on the surface of this damping steel 1a to form the plated layers 4. This plated damping steel sheet 1b is immersed in a soln. contg. ammonium sulfate and nitric acid. Reverse electrolysis is performed wherein the steel sheet side is regulated to a positive pole and blackened films 5 are formed on the surfaces of the damping steel sheet 1b. Then chromate treatment is performed on the surfaces of the damping steel sheet 1c with the blackened films 5 formed thereon to form the chromate chemical conversion films 6. Furthermore this film 6 is coated with clear resin 7 and thereby corrosion resistance is imparted to the blackened films 5 and also the films are protected.

62. 发明专利

JPH03176133A PREPARATION OF ULTRA-HIGH R-VALUE COMPOSITE STEEL PLATE 失效
公开(公告)号：JPH03176133A
公开(公告)日：1991-07-31
申请号：JP31727289
申请日：1989-12-06
申请人： KAWASAKI STEEL CO
发明人： SHINOZAKI MASATOSHI , HOSODA HIROSHI , SEKINE TOSHIHIRO
IPC分类号： B32B15/01 , B32B15/08
摘要： PURPOSE:To perform ultra-deep drawing processing by rolling and annealing a hot rolled steel plate to obtain a thin steel plate having a specific r-value and bonding two thin steel plates under pressure using an adhesive. CONSTITUTION:A rolled steel plate having thickness of 1.2 - 6.0 mm is rolled in a cooling draft of 80% or more to be reduced to 0.3 - 1.2 mm in its thickness and this rolled steel plate is annealed to form a thin steel plate having an r-value of 2.5 or more. Next, two thin steel plates are bonded under pressure using an adhesive having shearing adhesive strength of 100 kgf/cm or more to prepare a composite steel plate having thickness of 0.6 - 2.4 mm and an ultra-high r-value. At this time, a conductive filler is pref. mixed with the adhesive. Since the obtained composite steel plate has an r-value of 2.5 or more, ultra-deep drawing processing can be performed. Further, since the steel plates are compounded by the adhesive having the above mentioned strength, the shift quantity between two thin steel plates at the time of deep drawing is extremely low. By selecting an adhesive, damping properties can be also imparted to the composite steel plate.

63. 发明专利

JPH03150148A MANUFACTURE OF WELDABLE VIBRATION-DAMPING METAL SHEET USED AT ULTRA-HIGH TEMPERATURE 失效
公开(公告)号：JPH03150148A
公开(公告)日：1991-06-26
申请号：JP28899189
申请日：1989-11-07
申请人： KAWASAKI STEEL CO
发明人： SHINOZAKI MASATOSHI , HOSODA HIROSHI , SEKINE TOSHIHIRO
IPC分类号： B32B15/08 , B32B17/06
摘要： PURPOSE:To manufacture a weldable vibration-damping metal sheet to be used at the ultra-high temperature by interposing glass frit and conductive filler having speci fied value or more of thermal expansion factor or a face on which two metal sheets face each other, dissolving the glass frit by heating and fixing the metal sheets by pressure. CONSTITUTION:A mixture of glass frit 10 or glass slit and conductive filler is sprayed uniformly on a steel belt 1b by a glass frit spraying device 2 and overlapped with a steel belt 1a at the position of a deflector roll 3. Thermal expansion factor of the glass frit 10 to be used should be 8.5 X 10 / deg.C or over. When the factor is smaller than said number, release between the steel belt or warp of vibration-damping steel is generated, as shrinkage factor is different from that of the steel belts in the course of cooling process. The steel belts are heated in a heating oven 4 and the glass frit 10 is melted. Said heating is carried out in inactive gas such as N2 in order to prevent the steel belts from getting oxidized. The steel belts coming out of the heating oven 4 are passed through the pressure rolls 5, fixed by pressure and integrated to form a vibration-damping steel sheet 1c, and passed through between cooling nozzles 6 to be cooled down, wound on a coiler 8, and cut to manufacture a vibration-damping steel sheet coil.

64. 发明专利

JPH0313332A COMPOSITE METAL PLATE EXCELLENT IN BENDING PROCESSABILITY 失效
公开(公告)号：JPH0313332A
公开(公告)日：1991-01-22
申请号：JP14863389
申请日：1989-06-12
申请人： KAWASAKI STEEL CO
发明人： MANO JUNICHI , SHINOZAKI MASATOSHI
IPC分类号： B32B15/08 , B32B7/02
摘要： PURPOSE:To obtain a composite metal plate generating no gull-wing at the time of bending processing in the composite metal plate wherein a resin layer is sandwiched between a pair of metal plates, by bringing the thickness of a metal plate on a bending inside and that of a metal plate on a bending outside to specific relation. CONSTITUTION:When the thickness t1 of a metal plate on a bending inside is t1 =t2/t1>=5, the thickness of the metal plate on the outside is larger than that of the metal plate on the inside and, as a result, a bending neutral axis moves toward the metal plate on the outside and the shearing stress applied to a resin layer becomes small and the shift quantity of the resin layer is reduced. Therefore, the generation of gull-wing at the time of bending processing can be prevented. Herein, when t2/t1 is below 5, in such a case that a hard material is used as an inside steel plate, the shift quantity of the resin layer is large and, when t1 exceeds 0.25mm, even if t2/t1>=5 is formed, the shearing stress applied to the resin layer can not be reduced and the generation of gull-wing can not be prevented in both cases. When t2 exceeds 0.25mm or t2/t1 exceeds 20, the total thickness increases and bending processing becomes difficult.

65. 发明专利

JPH02173548A DETECTING METHOD FOR FATIGUE CRACK IN RADIAL DIRECTION LOAD ENDURANCE TEST OF WHEEL FOR AUTOMOBILE 失效
公开(公告)号：JPH02173548A
公开(公告)日：1990-07-05
申请号：JP32836588
申请日：1988-12-26
申请人： KAWASAKI STEEL CO
发明人： YAMAMOTO ATSUYUKI , SHINOZAKI MASATOSHI , SUGAI MINORU
IPC分类号： G01M99/00 , G01M17/02 , G01N3/32 , G01N21/88
摘要： PURPOSE:To easily and exactly detect a crack without interrupting a rotation of a wheel by observing continuously a reflected light of a thin flux light beam irradiating a fatigue crack generation predicted part of a wheel disk. CONSTITUTION:This system is provided with a reflected light detecting device 20 for pressing a wheel 14 in which a tire 12 is installed against a rotary drum 10, irradiating a fatigue crack generation predicted part of a wheel disk with a beam spot of, for instance, 2 - 10mm phi from a thin flux light beam generating device 18, and detecting continuously a reflected light from the surface of the wheel disk. In this state, by observing continuously the intensity of the reflected light photodetected by the device 20, while rotating the wheel 14, and outputting an intensity variation of the reflected light as a variation of an electric signal to a meter 22, the generation of a crack is detected. In such a way, a fatigue crack at the time of a radial direction load endurance test can be detected with high accuracy without stopping the wheel 14 at every prescribed revolution speed.

66. 发明专利

JPH02160177A BUTT WELDING METHOD 失效
公开(公告)号：JPH02160177A
公开(公告)日：1990-06-20
申请号：JP31188788
申请日：1988-12-12
申请人： KAWASAKI STEEL CO
发明人： YAMAMOTO ATSUYUKI , SHINOZAKI MASATOSHI , ABE HIDEO
IPC分类号： B23K11/02
摘要： PURPOSE:To perform butt welding without a third lip at the time of butt-welding steel sheets by coating both welding end faces of the steel sheets with electrically conductive materials with specific thickness and then, performing butt welding thereon. CONSTITUTION:Both welding end faces of the steel sheets are coated with the electrically conductive materials with 1-100mum thickness and then, subjected to butt welding. Or, in addition, electrically conductive filmy material with 1-100mum thickness can be inserted thereinto. When the third lip 3 is formed on a wheel rim at an unstationary part being generated on the inside by several cm from the end in the cross direction of a welded zone, the third lip 3 is formed on the vicinity of just a corner part on several occasions and a hair crack takes place and air leakage is caused on occasions. There are copper plating, electrically conductive coating application, Cu foil insertion, Ag foil insertion, pure Fe foil insertion, stainless steel foil insertion, etc., as the coating method of the electrically conductive materials. In butt welding, only in case no coating is processed, the third lip is generated and no third lip is generated in any other cases. By this method, butt welding without third lip can be performed and since the air leakage is not caused, quality of the wheel rim is improved.

67. 发明专利

JPH02159537A DETECTION FOR GENERATION OF FATIGUE CRACKING IN RADIAL LOAD ENDURANCE TEST FOR WHEEL OF AUTOMOBILE 失效
公开(公告)号：JPH02159537A
公开(公告)日：1990-06-19
申请号：JP31292988
申请日：1988-12-13
申请人： KAWASAKI STEEL CO
发明人： YAMAMOTO ATSUYUKI , SHINOZAKI MASATOSHI , SUGAI MINORU
IPC分类号： G01M17/02
摘要： PURPOSE:To enable the detecting of a generation timing of a fatigue cracking by measuring a change in a distance between a wheel and a rotary drum during a endurance test. CONSTITUTION:When a wheel 18 having a tire 17 mounted thereon is pressed by a load of 500-2,000kgf on a rotary drum 13 rotating at a speed of 60-100km per hour with the driving of a hydraulic cylinder 15, an air pressure of the tire rises remarkably with thermal expansion of air within the tire so that a distance between the wheel and the drum expands to be stabilized. Here, wheel position detectors 19 and 20 are set to measure a distance between the wheel 18 and the drum 13 and a change in the distance is measured with a cracking generation detector 21. Then, the detector 21 detects the timing of generation of even a fine fatigue cracking precisely based on a change from a reference state at which the distance between the wheel and the drum with the thermal expansion of the air within the tire. Then, a radial load endurance can be evaluated depending on a total of revolutions or a total of running distance until a fatigue cracking occurs.

68. 发明专利

JPH01127182A COMPOSITE TYPE DAMPING MATERIAL EXCELLENT IN SPOT WELDABILITY AND ADHESIVE PROPERTY 失效
公开(公告)号：JPH01127182A
公开(公告)日：1989-05-19
申请号：JP28466987
申请日：1987-11-11
申请人： KAWASAKI STEEL CO
发明人： UCHIDA YASUNOBU , WAKUI MASAHIRO , MATSUMOTO YOSHIHIRO , SHINOZAKI MASATOSHI
IPC分类号： B23K11/16 , B32B15/08
摘要： PURPOSE:To improve the characteristic and quality of a damping material by dispersing metallic fillers forming coupling-treated layers on the surfaces in a viscous resin layer having the specific constitution and characteristic. CONSTITUTION:The viscous resin layer 2 wherein the metallic fillers 3 having the coupling-treated layers 4 on the surfaces are dispersed is held between metal plates 1 and 1 forming the composite type high damping material to form the high damping material. At this time, the fillers 3 are constituted of copper powders and iron powders, etc., and the particle diameters have a value of 0.5-5.0 at the thickness ratio of the resin layer 2 and set at 5-30vol.% of the resin layer 2 as the volume. The metallic fillers 3 are subjected to coupling treatment and wettability between the fillers 3 and the resin layer 2 is improved and the viscous resin layer 2 is constituted of saturated copolymerization polyester, etc., having characteristics of weight average molecular weight >=5,000 and a softening point of 50-150 deg.C. By this method, the characteristics such as high damping property, adhesive strength and weldability and the quality of the high damping material are improved.

69. 发明专利

JPS63317649A DEAD-SOFT CARBON COLD-ROLLED STEEL SHEET EXCELLENT IN SPOT WELDABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPS63317649A
公开(公告)日：1988-12-26
申请号：JP15297887
申请日：1987-06-19
申请人： KAWASAKI STEEL CO
发明人： OKADA SUSUMU , OBARA TAKASHI , IMANAKA MAKOTO , SHINOZAKI MASATOSHI , SUMIYAMA KOZO
IPC分类号： C21D8/04 , C21D9/48 , C22C38/00 , C22C38/14
摘要： PURPOSE:To obtain a dead-soft carbon cold-rolled steel sheet having superior spot weldability without deteriorating formability, by providing a composition which contains respectively prescribed amounts of C, Si, Mn, P, S, N, Al, Ti, Nb, and B and in which four specific inequalities are satisfied. CONSTITUTION:A dead-soft carbon steel sheet consisting of, by weight,

70. 发明专利

JPS62108035A MANUFACTURE OF COMPOSITE LAMINATED STEEL PLATE AND ITS MANUFACTURING DEVICE 失效
公开(公告)号：JPS62108035A
公开(公告)日：1987-05-19
申请号：JP24856185
申请日：1985-11-06
申请人： KAWASAKI STEEL CO
发明人： SHINOZAKI MASATOSHI , MATSUMOTO YOSHIHIRO , SUMIYAMA KOZO , HATTORI MITSUTAKA
IPC分类号： B32B15/01 , B29C65/46 , B29L9/00 , B32B15/08
摘要： PURPOSE:To constitute the titled method so that a temper color is not generated on the surface of a steel plate, by a method wherein the titled device possesses a high-frequency induction heating furnace and press bonding roll in a down stream in a running direction of the steel plate, resin is fused without raising the temperature of the surface of the steel plate by the high-frequency induction heating furnace and press bonding is performed by the press bonding roll. CONSTITUTION:A composite laminated steel plate 1 which has been obtained by pinching resin 3 between steel plates 2, 2 through pinch rolls 6, 6 enters a high-frequency induction heating furnace 8, high-frequency heating is applied to the same with the steel plates 2, 2 used as electrodes. In this instance, as the temperatures of the surfaces of the steel plates 2, 2 hardly increase by fusing only the resin 3 and temper color does not generate on the surfaces of the steel plates 2, 2. As the resin 3 to be placed between the steel plates 2, 2, a resin which contains a filler 12 whose dielectric constant is three or more is preferable. As the resin 3 is made into three-layer structure, the similar filler 12 is contained in resin layers 3a, 3a coming into contact with steel plates 2, 2, efficiency of the filler is improved, and the resin layers 3a, 3a in the vicinity of the interface are fused preferentially, far rapid fusion of the resin is possible.

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