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

JPH03183752A IN-BATH FLOATER 失效
公开(公告)号：JPH03183752A
公开(公告)日：1991-08-09
申请号：JP32250289
申请日：1989-12-14
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TANIZAKI KEIJI , HIRAI ETSURO , KAMIKAWA SUSUMU , IIDA YOSHIHIRO , KIYASU TETSUYA
IPC分类号： C23C2/00 , C23G3/02
摘要： PURPOSE:To suppress the oxidation effect of a bath surface and to prevent the formation of oxides by enclosing the periphery of the suction port of a pump and the upper part thereof with a sealing box and supplying an inert gas into the sealing box. CONSTITUTION:The peripheral part of the pump suction port 2a of the in-bath floater 1 and the bath surface around the pump 2 are enclosed with the sealing box 7. An inert gas which is pressurized slightly higher than atm. pressure is supplied into the sealing box 7 to prevent the oxidation effect of the bath surface and the consequent formation of the oxides. The wear and damage of an impeller 3 and the suction port 2a and the clogging of a floating port 1a are, therefore, prevented and the degradation in the floater performance and the quality of the product plate is prevented. A baffle plate 9 is freely attachably and detachably mounted to the side face of the pump 2 between the suction port 2a of the pump 2 and the bath surface. The baffle plate 9 prevents the suction of the oxides and impurities suspending near the liquid surface into the pump 2.

2. 发明专利

JPH0344425A METHOD FOR CONTROLLING TEMPERATURE OF STRIP IN HEATING FURNACE 失效
公开(公告)号：JPH0344425A
公开(公告)日：1991-02-26
申请号：JP17707889
申请日：1989-07-11
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TAUCHI KUNIAKI , IIDA YOSHIHIRO , KOHAMA TETSUYA , IDE RYOICHI
IPC分类号： C21D11/00 , C21D9/56
摘要： PURPOSE:To improve heat efficiency at the time of low loading by deciding the set value for furnace temp. and the set value for circulating flowing quantity of furnace gas base on heat load to a strip. CONSTITUTION:The set value for furnace temp. and the set value for hot gas blowing quantity (circulating flowing quantity of furnace gas) according to the load are inputted for each target value of strip temp. and each strip width to a process computer 16. The process computer 16 transmits the furnace temp. set value signal (b) and the hot gas blowing quantity set value signal (c) according to the actual load of each coil to a furnace temp. controller 3 and a pressure controller 10, respectively. In the case the heat load of the strip 20 is higher than the prescribed upper limit value, the permissible min. value is given as the set value for hot gas blowing quantity. In the case the heat load is lower than the lower limit value, the permissible max. value is given. In the case the heat load has a range between the upper limit value and the lower limit value, the set value for hot gas blowing quantity having a range between the permissible min. value and the permissible max. value, is given as function of the heat load. Therefore, the heat efficiency can be kept high over the whole load range.

3. 发明专利

JPH0320450A METHOD FOR CONTROLLING FLOATING DEVICE HAVING SIDE PLATE 失效
公开(公告)号：JPH0320450A
公开(公告)日：1991-01-29
申请号：JP15282289
申请日：1989-06-15
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： SHIGEMOTO HARUMI , IIDA YOSHIHIRO , IDE RYOICHI , HYODO KANAAKI , HIRAI ETSURO
IPC分类号： C23C2/40 , C21D9/63
摘要： PURPOSE:To minimize reduction in the ability of correcting a meandering motion at the time of modifying sheet width by providing side plates freely movable in a sheet transverse direction in the side parts of a traveling strip-like material on a floating device and allowing the side plates to follow the modification of the sheet-width of the strip-like material. CONSTITUTION:Side plates 5 moving in a sheet transverse direction in the side parts of the moving line of a strip 3 are provided on a bend floating device 4 in which the strip 3 is floated and supported in a non-contact state by blowing fluid through nozzles 2 provided to the surface of a chamber 1. Each side plate 5 is constituted of a vertical side plate part 5a and a cover 5b extending from the lower end of the side plate part 5a and covering the surface of the chamber 1. When a modification occurs to the width of the strip 3 traveling by such a constitution, respective intervals between the side plates 3 and the strip 3 are properly regulated according to the modification. By this method, the meandering motion of the strip 3 can be corrected and stable conveyance can be carried out, and contact troubles, such as scuffing of edge, at the time of modifying width in particular can be prevented.

4. 发明专利

JPH02200796A DEVICE FOR SUPPORTING STRIP AFLOAT 失效
公开(公告)号：JPH02200796A
公开(公告)日：1990-08-09
申请号：JP1744689
申请日：1989-01-30
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TANIZAKI KEIJI , SHIGEMOTO HARUMI , UCHIYAMA YUKIHIKO , IIDA YOSHIHIRO
IPC分类号： B65H20/14 , C21D9/63 , C25D7/06 , C25D17/06
摘要： PURPOSE:To prevent a traction plate from coming into contact with floaters at the time of extending the strip by disposing rolls which rotate and support the traction material for a passed material before and behind and between the floaters which are divided in the direction transverse with the traveling direction of a strip in such a manner that the rolls can be advanced to the retreated from the traction material. CONSTITUTION:The rolls 11 are respectively disposed before and behind and between the floaters divided by 90 deg.. The rolls 11 are supported by brackets 12 in such a manner that the rolls can be rotated in the traction direction of the traction plate 6 and can be advanced to and retreated from the traction material 6 by the hydraulic cylinder 13. The respective rolls 11 are projected upward from the floaters 1 and the traction plate 6 is placed on the rolls 1 so that the passed material can be easily pulled at the time of boarding. The respective rolls 11 are retracted and the strip is supported afloat by the floaters 1 during the operation of a continuous plating line. The contact of the traction plate 6 with the floaters 1 is prevented in this way at the time of extending the strip. The failure of the floaters 1 and the cutting of the traction material 6 are thus averted.

5. 发明专利

JPH02200762A METHOD FOR HEATING STEEL STRIP IN ALLOYING FURNACE 失效
公开(公告)号：JPH02200762A
公开(公告)日：1990-08-09
申请号：JP1744889
申请日：1989-01-30
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： SHINYA KENJI , KATO TOSHIO , SHIGEMOTO HARUMI , IIDA YOSHIHIRO , IDE RYOICHI
IPC分类号： C23C2/06 , C23C2/28 , C23C2/40
摘要： PURPOSE:To easily and uniformly apply heating to a steel strip according to width by detecting the width of a steel strip to be treated, interrupting fuel supply to burners disposed in the positions outside the above strip width, and also reducing combustion air supply to minute flow rate. CONSTITUTION:Alloying treatment is carried out by heating a galvanized steel strip 1 continuously traveling through an alloying furnace 2 by means of cup burners 3a-3i disposed so that they face both sides of the steel strip 1. In the above alloying furnace 2, plural cup burne 3a-3i are disposed in the width direction of the steel strip 1. At the time of passing the steel strip 1, the width of the steel strip 1 is detected, and, according to the strip width, fuel supply to the burners 3a, 3i, etc., disposed on the outside of the strip width is interrupted or is substituted by inert gas supply. Simultaneously, combustion air supply is reduced and the combustion air is kept flowing at minute flow rate. By this method, temp. rise at the ends of the steel strip 1 can be controlled and temp. distribution in the width direction can be uniformized, by which the resulting alloyed layer can be uniformized.

6. 发明专利

JPH02166236A FLOATER HAVING SIDE PLATE 失效
公开(公告)号：JPH02166236A
公开(公告)日：1990-06-26
申请号：JP31996788
申请日：1988-12-19
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： SHIGEMOTO HARUMI , IIDA YOSHIHIRO , IDE RYOICHI , HYODO KANAAKI , HIRAI ETSURO
IPC分类号： C23C2/40 , C21D9/63
摘要： PURPOSE:To stably convey a long-sized band-shaped body such as a band steel in a non-contact and levitated state without meandering the body by forming a floater for supporting the body in a non-contact state with a chamber provided with many nozzles for injecting a high-pressure fluid onto the body and a side plate movable on the nozzle forming surface in the cross direction of the body. CONSTITUTION:When the long-sized band-shaped body such as a band steel 3 is conveyed without contacting other equipment in a levitated state, a high- pressure gas is injected from many nozzles 2 in the conveying surface of a chamber 1, and the steel 3 is levitated and conveyed without contacting. In this case, the side plates 5 are provided to surround the steel 3, and the steel 3 is levitated and conveyed regardless of the width of the steel 3 by changing the distance between the plates. The side plate 5 has a side plate part 5a and a nozzle cover part 5b, and a bracket 5c is extended from the upper end of the side plate part 5a to prevent the abnormal levitation of the steel 3.

7. 发明专利

JPH0225554A STRIP FLOATING AND SUPPORTING DEVICE 失效
公开(公告)号：JPH0225554A
公开(公告)日：1990-01-29
申请号：JP17280388
申请日：1988-07-13
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： NORIMATSU YASUFUMI , YANAGI KENICHI , TAKAHARA SHIGERU , IIDA YOSHIHIRO , SHIGEMOTO HARUMI
IPC分类号： C23C2/00 , C23C2/40
摘要： PURPOSE:To improve the floating and supporting efficiency and performance of a strip by providing a jet width adjusting device having a cover to adjust the jet range width of high-pressure fluid in accordance with the strip width. CONSTITUTION:A high-pressure fluid layer is formed between a floater surface 1a and the strip (a) by the high-pressure fluid jetted from nozzle groups 2a, 2b, 2f disposed on the floater surface 1a to the outside. The strip (a) is supported a float and guided by this high-pressure fluid layer without coming into contact with the floater surface 1a. In addition, the jetting of the high-pressure fluid from the nozzle holes at both ends where the strip (a) is not disposed opposite to said holes is stopped by the relative advance and retreat of the cover 11 of the jet width adjusting device covering both ends of the strip. The high- pressure fluid is jetted from only the nozzle holes disposed opposite to the strip (a) at this time and the jet range width of the high-pressure fluid is adjusted in accordance with the strip (a) width. The wasteful useless jetting of the high-pressure fluid is thus obviated and the jetting high-pressure fluid contributes well to the formation of the high-pressure fluid layer, thus stabilizing the floating and supporting performance of the strip.

8. 发明专利

JPS62290831A METHOD FOR OPERATING HEATING AND COOLING ROLLS FOR METALLIC STRIP 失效
公开(公告)号：JPS62290831A
公开(公告)日：1987-12-17
申请号：JP13374086
申请日：1986-06-11
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： MAKIHARA KATSUMI , MIHARA KAZUMASA , IIDA YOSHIHIRO , HASHIME TOSHIYUKI
IPC分类号： C21D9/56 , C21D9/573
摘要： PURPOSE:To execute operation of heating and cooling rolls without solidifying the residual heat medium in the rolls and without thermally deforming the rolls by adding a proper volume of water to a fused salt of the heat medium remaining in the rolls and allowing the same remain in the form of an aq. soln. during the shutdown of the heating and cooling rolls for a metallic strip. CONSTITUTION:A shotdown operation is carried out by the following procedure to stop the operation of the roll 2 from the operating state thereof in order to execute, for example, the periodic inspection, periodic repair, etc. of an installation: While the roll 2 is kept operated, a press feed pump 8 is stopped and the fused salt in the upper part from the open and part of a revolving shaft 4 among the fused salt in a feed path 11 and a return path 12 and the fused salt in the roll 2 is dropped and recovered into a tank 7. A pump 15 is then started and a valve 13 is opened. The flow rate of the supply water is checked by an integrating flow meter 16, then the valve 13 is closed and the pump 15 is stopped. The supplied water is stirred by the rotation of the roll 2 and the residual fused salt is made into the uniform aq. fused salt soln. by the effect of such stirring. The aq. soln. is discharged from the shaft 4 to the outside of the roll 2 and is returned into the tank 7, where the moisture is evaporated and only the fused salt is eventually recovered.

9. 发明专利

JPS60221531A METHOD FOR CONTROLLING STRIP TEMPERATURE OF COOLING FURNACE FOR CONTINUOUS ANNEALING INSTALLATION 失效
公开(公告)号：JPS60221531A
公开(公告)日：1985-11-06
申请号：JP7580784
申请日：1984-04-17
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TAUCHI KUNIAKI , HIYOUDOU KANAAKI , IIDA YOSHIHIRO , SHIRAISHI NORIHISA
IPC分类号： C21D9/573 , C21D11/00
摘要： PURPOSE:To prevent troubles such as defective shape, sheet breakage, etc. by setting and changing stepwise gas jet pressures in such a way that the temp. decreasing rate of the strip for each one cooling roll attains a prescribed value when strip conditions change. CONSTITUTION:The strip 1 is introduced into a cooling furnace 5 and is cooled by a gas jet cooler 8 and a roll cooler 9. When the strip conditions change, the required cooling rate of the gas jet is calculated from the detected values of the strip temp. by a temp. detector 19 and the surface temp. of the rolls 10 and the strip conditions in such a way that the temp. decreasing rate of the strip for each one cooling roll attains the prescribed value or below. The gaseous pressure is set by the calculated value. The set value is maintained till the next timing. The calculation is repeated at every specified period and the set value is changed stepwise until finally the set temp. at which the prescribed strip temp. in the outlet of the cooling furnace is attained.

10. 发明专利

JPS60128220A METHOD FOR CONTROLLING TEMPERATURE OF STRIP IN COOLING ZONE OF CONTINUOUS ANNEALING FURNACE 失效
公开(公告)号：JPS60128220A
公开(公告)日：1985-07-09
申请号：JP23498683
申请日：1983-12-15
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TAUCHI KUNIAKI , HAYAMA YASUNOBU , FUKUSHIMA TAKEO , IIDA YOSHIHIRO , SHIRAISHI NORIHISA
IPC分类号： C21D9/573 , C21D11/00
摘要： PURPOSE:To improve yield as well when changing annealing conditions in the stage of determining set values for plural operation items for the purpose of obtaining the prescribed cooling temp. for the succeeding coil by making the operation items having responsiveness as constant as possible and changing the setting of the operation items having good responsiveness thereby changing the cooling rate. CONSTITUTION:A cooling installation is combined with gas jet cooling installations 26, 27 for blowing a cooling gas to a strip 1 and a roll cooling installation which brings the strip 1 into contact with the outside circumferential surface of cooling rolls 2-5 in which a refrigerant is passed. The prescribed cooling temp. is obtd. by changing the set values in order of the flow rate for blowing the gas jets, the contact length with the rolls 2-5, i.e., the winding angle with the roll and the refrigerant temp.

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