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31. 发明专利

JPS61204309A METHOD FOR RECOVERING HEAT INSULATING MATERIAL FOR MOLTEN STEEL 失效
公开(公告)号：JPS61204309A
公开(公告)日：1986-09-10
申请号：JP4280485
申请日：1985-03-06
申请人： SUMITOMO METAL IND
发明人： YOSHIDA SHUJI , TATENO MASAKI , OKAMOTO SETSUO , MATSUO SHIGEYOSHI
IPC分类号： B22D1/00 , C21C5/44 , C21C7/00
摘要： PURPOSE:To separate and suck a powdery heat insulating material on the surface of the molten slag on a molten steel in a ladle and to recover the material in a reusable form by sucking said heat insulating material by an ejection type sucking machine. CONSTITUTION:The surface of the molten slag on the molten steel in the ladle is coated with the powdery heat insulaing material consisting essentially of SiO2 to insulate the temp. of the molten steel. A small amt. of the remaining molten steel 8 and the molten slag 7 thereon and further the powdery heat insulating material 6 which is as light as of about 1 specific gravity remain in the bottom of the ladle 11 in the stage of tapping the molten steel into a tundish from a sliding gate 12 in the bottom of the ladle. The top end of a suction pipe 3 of the ejector type sucking machine 1 is disposed above the material 6 apart at a specified space therefrom. High-velocity gaseous flow is ejected from an ejection nozzle 4 of the machine 1 into the pipe 2 and the material 6 is sucked by the negative pressure generated in the pipe. The sucked material is recovered through a recovering pipe 9 into a recovering vessel 10 such as bag filter and is reused as the heat insulating material.

32. 发明专利

JPS61195737A MANUFACTURE OF INTERNAL CHILL CLAD STEEL 失效
公开(公告)号：JPS61195737A
公开(公告)日：1986-08-30
申请号：JP3605085
申请日：1985-02-25
申请人： SUMITOMO METAL IND
发明人： OKAMOTO SETSUO
IPC分类号： B22D19/16 , B22D7/02
摘要： PURPOSE:To improve the interface adhesion of a composite material and a base material by controlling an application quantity of an oxidation inhibitor applied to the surface of the composite material, and a casting speed, in an area shown by a specified expression. CONSTITUTION:A composite material 1 to which an oxidation inhibitor 4 has been applied in advance is suspended in the inside of a casting mold 2, and a base material molten metal 3 is charged by a bottom casting method. A relation of an application quantity (x) (gr/m2) of the oxidation inhibitor 4 which has been applied to the composite material 1, and a casting speed (y) (mm/min) is regulated and controlled within a range shown by an expression (I). The oxidation inhibitor 4 of the surface of the composite material 1 evaporates as soon as it contacts to the molten metal 3, purges a bubble gas cam 5 generated at this time and eliminates a bubble derived from others. Accordingly, contamination of an inclusion of a clad interface, or existence of a bubble is prevented. According to this method, the interface adhesion of the composite material 1 and the base material is improved.

33. 发明专利

JPS61165588A METHOD AND DEVICE FOR SUCKING SLAG 失效
公开(公告)号：JPS61165588A
公开(公告)日：1986-07-26
申请号：JP461485
申请日：1985-01-14
申请人： SUMITOMO METAL IND
发明人： OKAMOTO SETSUO , MATSUO SHIGEYOSHI , TATENO MASAKI , TAKEISHI YOSHIAKI , SHOJI YASUO
IPC分类号： B22D43/00 , B22D37/00 , F27D3/15

34. 发明专利

JPS61157637A MANUFACTURE OF THIN SHEET OF CLAD STEEL 失效
公开(公告)号：JPS61157637A
公开(公告)日：1986-07-17
申请号：JP27484584
申请日：1984-12-28
申请人： SUMITOMO METAL IND
发明人： SUZUKI SADAYUKI , HAMAMATSU SHIGEKI , SHIRAI YASUTA , OKAMOTO SETSUO
IPC分类号： B21B1/22 , B23K20/04 , C21D8/02 , C21D9/46
摘要： PURPOSE:To manufacture inexpensively a thin sheet of clad steel excellent in quality by subjecting clad slab consisting of stainless steel or the like and ultralow-carbon steel to the suitable hot rolling and cold rolling and thereafter performing the heat-treatment holding it soakingly in the suitable conditions. CONSTITUTION:.The following clad slab is heated and thereafter hot-rolled wherein both a ply material such as stainless steel, nickel and nickel-based alloy and a base material of ultralow-carbon steel of

35. 发明专利

JPS6056469A PRODUCTION OF LONGITUDINALLY SHORT CASTING INGOT 失效
公开(公告)号：JPS6056469A
公开(公告)日：1985-04-02
申请号：JP16616983
申请日：1983-09-08
申请人： SUMITOMO METAL IND
发明人： OKAMOTO SETSUO , KIGUCHI HIROSHI
IPC分类号： C21C7/00 , B22D7/10 , B22D27/04
摘要： PURPOSE:To produce a longitudinally short steel ingot having less hydrogen blownholes and good quality at a high yield by interposing a molten slab having an adequate thickness in the head part of the cast molten metal, holding the same with a holding material and solidifying unidirectionally the same upward from the base part. CONSTITUTION:Molten slag 6 having >=3mm. thickness and a holding material 5 such as a heat insulating flux or the like having meltability for preventing the solidification from the head part of a molten metal and further carbonized chaff 7 are successively packed atop the molten metal 3 in a casting mold constituted to prevent cooling and solidifying of the molten metal 3 from the side wall as far as possible by adhereing a heat insulating material 4 such as ceramic fibers or the like to the inside circumferential wall of a casting mold 2 placed on a molding board 1. The unidirectional solidification upward from the base part is thus caused in the molten metal 3 to prevent generation of a defect such as segregation as well as to prevent the hydrogen generated from the material 4 and the material 5 from entering the inside of the molten metal 3.

36. 发明专利

JPS59226860A METHOD AND DEVICE FOR HOT EDDY CURRENT FLAW DETECTION 失效
公开(公告)号：JPS59226860A
公开(公告)日：1984-12-20
申请号：JP10242883
申请日：1983-06-08
申请人： SUMITOMO METAL IND
发明人： KATOU HIROMASA , OKAMOTO SETSUO , KOIDE MASAKAZU
IPC分类号： G01N27/90
摘要： PURPOSE:To attain effectively flaw detection of a horizontal crack and a corner crack of the side end part of a casting piece of continuous casting by executing an eddy current flaw detection by heating to a magnetic transformation point or above after removing a scale. CONSTITUTION:A casting piece M which in cast continuously is descaled by a gas jet type descaling device 5 provided on the upstream of an eddy current flaw detecting probe 4, and attains to a state that there is no disturbance operation by a scale at the time of an eddy current flaw detection.Subsequently, by a heating device 6 provided immediately before the probe 4 between the device 5 and the probe 4, the side end part of the casting piece M is heated to a magnetic transformation point or above, and it is prevented that a flaw detection finds difficulty in a magnetic transformation point area. In such a way, with respect to a horizontal crack and a corner crack, etc. of the side end part of a casting piece of continuous casting, a hot eddy current flaw detection can be executed effectively.

37. 发明专利

JPS5934206B2 JPS5934206B2 - 失效
公开(公告)号：JPS5934206B2
公开(公告)日：1984-08-21
申请号：JP7245078
申请日：1978-06-14
申请人： Sumitomo Metal Ind
发明人： MARUKAWA JUJO , HASHIKUMADA HIRONAGA , YAMAZAKI ISAO , OKAMOTO SETSUO
IPC分类号： C21C7/00 , C21C5/32 , C21C5/46
CPC分类号： C21C5/32

38. 发明专利

JPS58107288A PRODUCTION OF CLAD STEEL PLATE 失效
公开(公告)号：JPS58107288A
公开(公告)日：1983-06-25
申请号：JP20758581
申请日：1981-12-22
申请人： SUMITOMO METAL IND
发明人： YAMANAKA SHIZUO , OKAMOTO SETSUO
IPC分类号： B23K20/04 , B23K20/227
摘要： PURPOSE:To produce clad steel free from peeling of cladding materials and base material in good yields in the stage of producing a clad steel plate by cutting away the circumferential parts of cladding material slabs then coating heat resistant adhesive agents on the adhering lines of the cladding materials and the base materials and rolling both materials. CONSTITUTION:A clad steel ingot by insert casting is bloomed to a slab 4 consisting of cladding materials 2, 2 and base materials 3, 3 sandwiching a release material 1. The circumferential parts 5 of the slab 4 are cut away and the slab is separated to clad slabs 6, 7 from the material 1. In the stage of producing clad steel by rolling such clad slabs, heat resistant adhesive agents 12 are coated on the adhering lines 11 of the cladding materials and the base materials of the slabs 6, 7; thereafter, the slabs are heated to rolling temp. in a heating furnace and are rolled. The peeling of the cladding materials and base materials of the clad slabs in the peripheral parts of the adhered parts thereof is obviated, and the defective adhesion in the peripheral part of the clad steel is prevented by formation of oxide by the peeling.

39. 发明专利

JPS5785646A METHOD FOR PERFECT PRODUCTION OF RESIDUAL MOLTEN KILLED STEEL 失效
公开(公告)号：JPS5785646A
公开(公告)日：1982-05-28
申请号：JP16054080
申请日：1980-11-14
申请人： SUMITOMO METAL IND
发明人： OKAMOTO SETSUO , MARUKAWA YUUJIYOU , TOKUDA MAKOTO , HASHIO MORINORI
IPC分类号： B22D7/00 , B22D7/06
摘要： PURPOSE:To obviate the production of scraps by treating residual molten metal by the use of a prescribed vertically short mold. CONSTITUTION:A vertically short mold A is beforehand disposed near the array of vertically long molds 8, and molten steel is charged successively into the molds 8 through a nozzle provided in the bottom part of a ladle 6, after which only the molten steel that will be the residual molten steel is charged into the mold A and is made into an ingot as a vertically short steel ingot by an ingot making method for vertically short mold. The ingot making method for vertically short mold refers to a method of making ingots by using a mold having the short side size of the section in the horizontal direction larger as compared to the size in the height direction of the mold, covering the inside side walls of said mold with heat insulating materials, top-pouring molten steel into sald mold through a nozzle provided in the bottom part of a ladle, covering the top surface of the molten steel with a heat insulating material and accelerating unidireactional solidification from the bottom part of the steel ingot.

40. 发明专利

JPS5741804A Manufacture of thick steel plate 失效
标题翻译：厚钢板的制造
公开(公告)号：JPS5741804A
公开(公告)日：1982-03-09
申请号：JP11680580
申请日：1980-08-25
申请人： Sumitomo Metal Ind Ltd
发明人： OKAMOTO SETSUO , MARUKAWA YUUJIYOU , TOKUDA MAKOTO , HAMANA TAKATOSHI
IPC分类号： B21B1/38 , B22D27/04
摘要： PURPOSE: To omit a blooming process in order to directly roll a thick steel plate, and to improve the interior quality of the thick steel plate, by limiting the height of the poured molten steel in a low heat type ingot casting method.
CONSTITUTION: A molten steel 5 is poured into a mold 2 whose inner wall surface is lined with a heat insulating material 3, to a ≤400mm height, and then, the upper surface of the poured molten steel 5 is covered with a heat insulating material 4. Hereby, the solidification of the molten steel 5 is caused artificially from the bottom to the upside in one way and an ingot is obtained with a horizontal cross section having a large short side as compared with the height. Then this ingot is soaked at a prescribed temperature, and is directly rolled into a thick plate without passing a blooming process; hereby, a clean thick plate having no segregation layer in its core is obtained.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了直接轧制厚钢板，为了提高厚钢板的内部质量，通过以低热铸锭铸造法限制浇注钢水的高度，省略了喷砂工序。构成：将钢水5注入到内壁表面隔着绝热材料3的模具2中，至<= 400mm。高度，然后，浇注的钢水5的上表面被隔热材料4覆盖。因此，钢水5的固化是以人为因素从底部到上面以一种方式产生的，并且用与高度相比具有大的短边的水平横截面。然后将该锭浸泡在规定的温度下，直接卷成厚板，不经过开花过程; 因此，得到其核心中没有偏析层的干净的厚板。

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