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

JPH0579731B2 失效
公开(公告)号：JPH0579731B2
公开(公告)日：1993-11-04
申请号：JP5423887
申请日：1987-03-11
申请人： NIPPON KOKAN KK
发明人： ARIIZUMI TAKASHI , YAMAMOTO SADAHIRO , KOBAYASHI YASUO , MATSUO TOSHINORI , OOCHI CHIAKI
IPC分类号： B21B1/22 , B21B3/00 , B21B3/02 , B21B47/00 , C21D8/02

2. 发明专利

JPS6380902A PACK ROLLING METHOD 失效
公开(公告)号：JPS6380902A
公开(公告)日：1988-04-11
申请号：JP22491086
申请日：1986-09-25
申请人： NIPPON KOKAN KK
发明人： MASUDA SADAKAZU , YOSHINO MASAHIKO , KAMATA SHOSEI , ARIIZUMI TAKASHI , MATSUO TOSHINORI , TAMAI JUNZO
IPC分类号： B21B1/22 , B21B1/38 , B21B3/00
摘要： PURPOSE:To permit application of a pack rolling method to an arbitrary stock by selecting a core material and cover material in such a manner that the deformation resistance value of the core material is smaller than the deformation resistance value of the cover material and specifying the ratio between the thickness of the core material and the total thickness of the assembled stock to an adequate value. CONSTITUTION:The top and bottom of the core material on which a release agent is coated are sandwiched by the cover materials 2 and the circumference thereof is enclosed with spacers 3. The core material 1 and the cover material 2 are so selected that the deformation resistance value of the core material is lower than the deformation resistance value of the cover material 2. The thickness is so selected that the ratio between the thickness of the core material 1 and the thickness of the assembled stock attains 0.65-0.85. The laminated stock for rolling assembled in a manner as to satisfy the above-mentioned conditions is rolled hot. Since the cover material and core material are selectable by any methods, the pack rolling method is applicable to the arbitrary stock and the production of a thin sheet is permitted.

3. 发明专利

JPS6352779A STARTING AND FINISHING END PROCESSING METHOD FOR ELECTRON BEAM WELDING 失效
公开(公告)号：JPS6352779A
公开(公告)日：1988-03-05
申请号：JP19406486
申请日：1986-08-21
申请人： NIPPON KOKAN KK
发明人： NAKADA KIYOKAZU , KOSUGE SHIGECHIKA , WATANABE ITARU , TAKANE AKIRA , MATSUO TOSHINORI , YAKO KAZUNORI
IPC分类号： B23K15/00
摘要： PURPOSE:To improve the depth of penetration of the starting and finishing ends by processing the starting and finishing ends to control a feed speed of a filler wire according to the timing of a rise and a fall of a beam current of the starting end and the finishing end of materials to be welded. CONSTITUTION:As to the starting end processing, the beam current is raised gradually from the time when an electron beam is in the outside of the starting end position 10 of the materials to be welded and the beam current is made to 10-70% of the regular welding beam current when it attains the starting end position 10 and at the same time, the feed of the filler wire is started. When the feed speed of the filler wire attains the regular speed, the beam current is made to 80-100% of the regular welding bean current and afterward, the wire is fed at the regular speed to perform the beam welding with the regular beam current. As to the finishing end processing, when the electron beam attains the finishing end part 11 of the materials to be welded and the beam current falls to 80-100% of the regular welding beam current, the feed speed of the wire is reduced. When the beam attains the finishing end position 11, the beam current is made to 10-70% of the regular welding beam current and the wire feed is finished and when the beam is moved to the outside of the finishing end position 11, the beam current is made to zero.

4. 发明专利

JPH0635071B2 失效
公开(公告)号：JPH0635071B2
公开(公告)日：1994-05-11
申请号：JP19406486
申请日：1986-08-21
申请人： NIPPON KOKAN KK
发明人： NAKADA KYOKAZU , KOSUGE SHIGECHIKA , WATANABE ITARU , TAKANE AKIRA , MATSUO TOSHINORI , YAKO KAZUNORI
IPC分类号： B23K15/00

5. 发明专利

JPS6372404A PACKING METHOD FOR PACK ROLLING STOCK 失效
公开(公告)号：JPS6372404A
公开(公告)日：1988-04-02
申请号：JP21600086
申请日：1986-09-16
申请人： NIPPON KOKAN KK
发明人： MASUDA SADAKAZU , YOSHINO MASAHIKO , KAMATA SHOSEI , ARIIZUMI TAKASHI , MATSUO TOSHINORI , TAMAI JUNZO
IPC分类号： B21B1/22 , B21B1/38 , B21B3/00
摘要： PURPOSE:To prevent the seizure flaws on the surfaces of core materials and to improve yield by evacuating the inside of a rolling stock and in turn substituting the air with an inert gas in pack rolling to produce light-gaged nonferrous metals such as pure Ti and Ti and high alloy steels. CONSTITUTION:A release agent is coated on the surfaces of>=1 sheets of/ for example, the respective Ti sheets as a core material 1 to prevent sticking of the Ti to each other and the Ti to steel sheets used as a cover material 2 by rolling. For the above-mentioned purpose, the pack rolling stock is assembled and thereafter, the inside thereof is evacuated to a vacuum through discharge holes 6, then the gas inert to Ti is fed therein to substitute the air with said gas. The holes 6 are closed and the stock is subjected to hot rolling. The oxidation on the Ti surface of the core materials 1, absorption of hydrogen therein and welding thereof are thereby prevented and the core materials having the beautiful surfaces are obtd.

6. 发明专利

JPS6352784A MANUFACTURE OF CLAD METAL PLATE 失效
公开(公告)号：JPS6352784A
公开(公告)日：1988-03-05
申请号：JP19406986
申请日：1986-08-21
申请人： NIPPON KOKAN KK
发明人： NAKADA KIYOKAZU , KOSUGE SHIGECHIKA , WATANABE ITARU , TAKANE AKIRA , MATSUO TOSHINORI , YAKO KAZUNORI
IPC分类号： B23K15/00 , B23K20/04
摘要： PURPOSE:To manufacture the metal plate having a good adhesion of a base metal and clad material even in case of a thin clad material by performing the assembly welding of prior to rolling by an electron beam or laser beam in manufacturing the title metal plate whose whole products thickness of after rolling is more than constant and whose clad material thickness is less than constant. CONSTITUTION:The clad metal plate that the whole product of after rolling is >=60mm and the clad material thickness prior to rolling in

7. 发明专利

JPS6284223A TEMPERATURE CONTROL METHOD FOR HEATING FURNACE 失效
公开(公告)号：JPS6284223A
公开(公告)日：1987-04-17
申请号：JP22375285
申请日：1985-10-09
申请人： NIPPON KOKAN KK
发明人： YAKO KAZUNORI , MATSUO TOSHINORI
IPC分类号： F23N5/02
摘要： PURPOSE:To provide a uniform heating of an item inserted into a furnace to be heated by a method wherein several points temperature in a furnace in a width direction of the furnace are detected and a ratio of inner to outer flows of a burner is controlled in such a way as each of the temperatures at each of the locations in the furnace may kept at a desired value. CONSTITUTION:Slabs 3a and 3b in a furnace are controlled in such a way that a temperature at each of the points in the furnace may fulfill the condition of equations (1)-(6) in order to heat them to the same temperature. That is, the values TA and TB are inputted into temperature adjusters TIC-a and TIC-b together with a target temperature Tp. Air flow rate adjusters FIC.A-b are controlled in such a manner as a value of TA-TP and a value of TB-TP are zero. Further, fuel flow rate control valves 6a and 6b and air flow rate control valves 7a and 7b are adjusted so as to control an amount of fuel to be supplied to a burner. Subsequently, inner and outer flow ratio adjusters FIC.41a and FIC.41b are controlled in such a manner that a value of TA-TC becomes equal to deltau and a value of TB-TC becomes equal to deltau, and further the inner and outer flow ratio control valves 8a and 8b are controlled to adjust a flame length.

8. 发明专利

JPS5913308B2 JPS5913308B2 - 失效
公开(公告)号：JPS5913308B2
公开(公告)日：1984-03-28
申请号：JP1961878
申请日：1978-02-24
申请人： Nippon Kokan Kk
发明人： TERUNUMA TOSHIKATSU , TOMA HIDEO , MATSUO TOSHINORI
IPC分类号： B23K9/18 , B23K35/40 , B23K37/00

9. 发明专利

JPH08246094A BUILDING STEEL FOR LOW TEMPERATURE USE 失效
公开(公告)号：JPH08246094A
公开(公告)日：1996-09-24
申请号：JP4453095
申请日：1995-03-03
申请人： NIPPON KOKAN KK
发明人： WADA NORIMI , MURAOKA RYUJI , MATSUO TOSHINORI , TANI SABURO , ISHIKAWA HIROSHI
IPC分类号： C22C38/00 , C22C38/06 , C22C38/50 , C22C38/58
摘要： PURPOSE: To produce a building steel having stable low temp. toughness and low yield ratio at a low temp. and satisfying low temp. low yield ratio capable of new earthquake-resistant design. CONSTITUTION: This building steel for low temp. use is the one composed of an iron-base alloy having = two kinds among 0.005 to 0.015% Ti, 0.005 to 0.04% Nb, 0.005 to 0.1%, V, 0.05 to 0.6% Cu, 0.05 to 0.6% Ni, 0.05 to 1.0% Cr and

10. 发明专利

JPS63104702A METHOD FOR CONTROLLING THICKNESS OF PACK ROLLED STOCK 失效
公开(公告)号：JPS63104702A
公开(公告)日：1988-05-10
申请号：JP24831286
申请日：1986-10-21
申请人： NIPPON KOKAN KK
发明人： MASUDA SADAKAZU , YOSHINO MASAHIKO , KAMATA SHOSEI , ARIIZUMI TAKASHI , MATSUO TOSHINORI , TAMAI JUNZO
IPC分类号： B21B1/22 , B21B1/38 , B21B3/00 , B21B47/00
摘要： PURPOSE:To exactly predict the thickness of core materials and to improve the finishing accuracy of the core materials by executing pack rolling after selection of the core materials in such a manner that the ratio in he deformation resistance values of the core materials and cover materials attains a specific value, determining the length of the core materials from a change in rolling load, etc., and calculating the thickness of the core materials. CONSTITUTION:The top and bottom of the core materials 1 are sandwiched by the cover materials 2 and the periphery thereof is covered with spacers 3. The pack stock assembled by welding the cover materials 2 and the spacers 3 over the entire periphery is rolled hot and thereafter, the pack stock is disassembled. The core materials 1 are so selected that the ratio in the deformation resistance values of the core materials 1 and the cover materials 2 attains >=1. The length of the core materials 1 is determined from the change in the rolling load or the change in the output of a gamma ray thickness gage and the thickness of the core materials 1 is determined from the volume constant rule of the core materials 1. The rolling is ended if the thickness of the core materials 1 is within the tolerance of the target thickness and the rolling of the ensuing pass is set if the thickness is larger than the target thickness.

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