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81. 发明专利

JPH0516935B2 失效
公开(公告)号：JPH0516935B2
公开(公告)日：1993-03-05
申请号：JP408185
申请日：1985-01-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： YOSHIHARA AKYO , YAMAMOTO KEIICHI , YAMANE TAKASHI , SEZE SHINJI , TANIE MASAFUNE
IPC分类号： B22D11/06

82. 发明专利

JPH04158959A APPARATUS FOR CONTINUOUSLY CASTING THIN SHEET 失效
公开(公告)号：JPH04158959A
公开(公告)日：1992-06-02
申请号：JP28331590
申请日：1990-10-23
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： MIZUCHI ISAO , TANAKA SHIGENORI , KASAMA AKIO , YAMANE TAKASHI , YAMAMOTO KEIICHI
IPC分类号： B22D11/06
摘要： PURPOSE:To stably produce a thin slab having good surface characteristic by setting scum weirs under regulating dipping depth into molten metal and distance between a cooling drum and meniscus to the scum weir to the specific ranges over the width direction of cooling drums. CONSTITUTION:Main stream of molten steel 5 flows as showing as the solid lines in the upper figure and is interrupted with the scum weir 6, but in the case the dipping depth of scum weir 6 exceeds 15mm the stream is developed as showing as the dotted line, and eddy or waving in between the scum weir 6 and the cooling drum 1 or strong stream to drum axial direction is developed. From the above result, by dipping the scum weir into the molten steel 5 under regulating in the range of a-b-c-d in the lower figure, the stream at the meniscus R becomes

83. 发明专利

JPH03110044A COOLING DRUM FOR CASTING CAST STRIP 失效
公开(公告)号：JPH03110044A
公开(公告)日：1991-05-10
申请号：JP24527989
申请日：1989-09-22
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： FUKUDA YOSHIMORI , TANAKA SHIGENORI , YAMAMOTO KEIICHI , YAMANE TAKASHI
IPC分类号： B22D11/06
摘要： PURPOSE:To grow solidified shell under slow cooling and to obtain a strip product without crack and fold by specifying diameters D1 and D2 of dimples and distances L1 and L2 between adjacent dimples and forming the dimples on circumference of a cooling drum under these conditions. CONSTITUTION:The multiple dimples A having round opening parts satisfying 0.4

84. 发明专利

JPH0390249A METHOD FOR CONTINUOUSLY CASTING CAST STEEL STRIP WITH THIN THICKNESS 失效
公开(公告)号：JPH0390249A
公开(公告)日：1991-04-16
申请号：JP22325289
申请日：1989-08-31
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： KAJIOKA HIROYUKI , MIZUCHI ISAO , FUKUDA YOSHIMORI , YAMAMOTO KEIICHI , YAMANE TAKASHI
IPC分类号： B22D11/06 , B22D11/10 , B22D11/106
摘要： PURPOSE:To restrain vaporization of Mn and to prevent the development of dotted contamination by adjusting contents of O and S in molten steel and concn. of N2 atmosphere to the specific condition. CONSTITUTION:In continuous casting method for a cast steel strip 4, a continuous casting machine providing cooling drums 1, 2, where the molten steel is cooled and the cast steel strip 4 is formed, is used and by restraining the vaporization of Mn contained in the molten steel in pouring basin part 3, the vapor deposition of Mn on the cooling drums 1, 2 is prevented. Therefore, O and S contents in the molten steel is adjusted respectively and N2 concn. is decided so that the sum of the contents of O and S concn. of N2 near the surface of the molten metal satisfies the condition of the inequality 1. In such way, O, S and N2 at the specific value or more is condensed near part of the surface of molten steel in the pouring basin part 3 and acts so as not to vaporize by shutting up Mn in the molten steel. Therefore, it is eliminated that Mn is unevenly deposited on the surface of cooling drums 1, 2 to become MnO by vaporizing of Mn in the molten steel.

85. 发明专利

JPS6440149A POURING METHOD IN TWIN BELT TYPE CONTINUOUS CASTING EQUIPMENT 失效
公开(公告)号：JPS6440149A
公开(公告)日：1989-02-10
申请号：JP19436487
申请日：1987-08-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： ITANO SHIGEO , YOKOTE HIROMI , AKITA HIDEKI , YAMANE TAKASHI , NISHIMURA OSAMU
IPC分类号： B22D11/06 , B22D11/10 , B22D11/103
摘要： PURPOSE:To prevent development of solidified phenomenon of molten metal between belts and outside wall of a nozzle and nozzle clogging phenomenon by arranging a refractory in gap between mold pouring metal surface at space between one pair of belts and a tundish. CONSTITUTION:The molten metal in a ladle 20 is introduced to a tundish nozzles 12, 12' through a tundish 13 and flowed out on surface of inclined plates 11, 11' from a notching part 12a, 12a' at lower end of the nozzles 12, 12'. This molten metal flowed out is flowed out is flowed against the refractory plate 10 on the inclined plates 11, 11' while spreading the molten metal to layer-state toward width direction of a slab on the inclined plates 11, 11'. After being brought into contact with the refractory plate 10, the molten metal is dropped along both surface thereof and introduced to the pouring surface. The flow of the molten metal along both surface of the refractory plate 10 becomes laminar flow, and uniform pouring of the molten metal is executed to the width direction of the pouring surface 8. Further, as the refractory surface 10 is submerged into the pouring surface 8 at some depth, the casting preventing spattering of the molten metal is executed.

86. 发明专利

JPS6221443A CONTINUOUS CASTING DEVICE FOR THIN SHEET 失效
公开(公告)号：JPS6221443A
公开(公告)日：1987-01-29
申请号：JP16005085
申请日：1985-07-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMANE TAKASHI
IPC分类号： B22D11/06
摘要： PURPOSE:To obtain an ingot having a good surface characteristic by disposing refractories to the meniscus part of the molten metal surface of a continuous casting device for a thin sheet and disposing electromagnetic stirrers to the upper part of the molten metal surface thereby forming solidified shells under the molten metal surface and maintaining the uniform temp. of a molten metal. CONSTITUTION:The refractories 10, 10' are disposed to the meniscus part of the surface of the molten metal 4 poured from a tundish 5 into the space formed of water-cooled casting drums 1, 1' and stationary gates 2, 2' so that the solidified shells grow from below the meniscus. Since the molten metal 4 is stirred by using the electromagnetic stirrers 9, 9', the temp. of the molten metal 4 is made uniform and the solidification on the molten metal surface is prevented; at the same time, the fluctuation of the molten metal surface is suppressed by the refractories 10, 10'.

87. 发明专利

JPS61165257A POURING DEVICE IN CONTINUOUS CASTING DEVICE 失效
公开(公告)号：JPS61165257A
公开(公告)日：1986-07-25
申请号：JP408185
申请日：1985-01-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： YOSHIHARA AKIYO , YAMAMOTO KEIICHI , YAMANE TAKASHI , SEZE SHINJI , TANIE MASAFUNE
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the disturbance of meniscus and to obtain an ingot having a good surface characteristic by disposing a baffle plate and receiving plate in a pouring nozzle, forming a discharge port into a slit shape and immersing the top end thereof into a molten steel. CONSTITUTION:The molten steel flowing out of a restrictor 5 collides against the baffle plate 6 and the molten steel is dispersed by the receiving plate 7 uniformly in the transverse direction of drums 3, 3' and is accumulated in the nozzle. The molten steel overflows from the receiving plate into the discharge port 8. The pouring nozzle is immersed below the meniscus and a pool 10 is formed at the port 8. The sectional area of the port 8 is made extremely larger than the sectional area of the restrictor 5 and therefore the molten steel flow gently out of the port 8.

88. 发明专利

JPS6149755A Apparatus for continuous casting of thin sheet 失效
标题翻译：连续铸造薄板的设备
公开(公告)号：JPS6149755A
公开(公告)日：1986-03-11
申请号：JP17046884
申请日：1984-08-17
申请人： Mitsubishi Heavy Ind Ltd , Ryomei Eng Corp Ltd
发明人： YAMAMOTO KEIICHI , YAMANE TAKASHI , HANANAKA KATSUYASU
IPC分类号： B22D11/06
CPC分类号： B22D11/066
摘要： PURPOSE:To provide a titled device which prevents the leakage of a molten metal, allows the easy stripping of a solidified material and produces a stable and non-defective thin sheet in continuous casting of the thin sheet by using opposed water-cooling drums by interposing and supplying continuously L- or T-shaped thin elastic metallic strips between the ends of the water-cooling drums and stationary gates. CONSTITUTION:The thin elastic metallic strips 7 having the L- or T-shaped section are interposed to te respective surface ends of the water-cooling drums 1, 1' which face horizontally each other and rotate in the directions opposite from each other in a manner as to be wound on said drums. Said strips are pressed to the stationary gastes 2 as well and are continuously supplied in synchronization with the rotation of the drums 1, 1'. The leakage of the molten metal is thoroughly prevented by the elasticity with the shape of the strips 7. The stripping of the solidified metal flowing to the strips 7 is made easy and the thin metallic strip 3 is produced stably as the non-defective product.
摘要翻译：目的：为了提供一种防止熔融金属泄漏的标题装置，允许容易地剥离固化的材料，并且通过使用相反的水冷鼓通过插入来产生连续铸造薄片的稳定且无缺陷的薄片并且在水冷滚筒的端部和固定的浇口之间连续供应L形或T形的薄弹性金属条。构成：具有L形或T形截面的薄的弹性金属带7被插入到相互水平面相对的水冷滚筒1,1'的相应表面端部，并以相反的方向在在所述鼓上缠绕的方式。所述条也被压到静止的气体2上，并且与鼓1,1'的旋转同步地连续供给。通过带材7的弹性彻底地防止熔融金属的泄漏。流动到条带7的固化金属的剥离变得容易，并且作为无缺陷产品稳定地生产薄金属带3。

89. 发明专利

JPS60170559A CONTINUOUS CASTING DEVICE 失效
公开(公告)号：JPS60170559A
公开(公告)日：1985-09-04
申请号：JP2287784
申请日：1984-02-13
申请人： MITSUBISHI HEAVY IND LTD , RYOMEI GIKEN KK
发明人： YAMAMOTO KEIICHI , YAMANE TAKASHI , KANAKA KATSUYASU
IPC分类号： B22D11/06
摘要： PURPOSE:To provide a continuous casting device which enables stable continuous casting without spoiling the characteristic of a billet by the constitution in which stationary gates are oscillatably disposed and the solidified shells formed by the wall surfaces thereof can be stripped as far as possible. CONSTITUTION:This continuous casting device consists of main constituting members including water cooled casting drums 1, 1' for casting a thin billet 3, stationary gates 2, 2' for preventing leakage of the molten metal 4 between the drums 1 and 1' a tundish 5 for supplying the molten metal 4 such as a molten steel at a constant rate, etc. The molten metal 4 is poured into the space formed of the drums 1, 1' and the gates 2, 2' and is cooled by the surfaces of the drums 1, 1'. The solidified shells formed in such a way are united to form a billet 3. Each gate 2 is formed of a refractory material 8 such as SiN and is so constituted that the gate can be preheated from the rear side and can also be heated even during casing operation. The gate 2 has a mechanism for lateral oscillation using a hydraulic cylinder 11. Such gates are pressed under specified face pressure to the end faces of the drums 1, 1' and are moved laterally to strip the solidified materials formed on the surfaces of the gates 2. The stripped materials are carried away downward together with the solidified shells on the surfaces of the drums 1, 1'.

90. 发明专利

JPS60111743A CONTINUOUS CASTING METHOD OF THIN SHEET 失效
公开(公告)号：JPS60111743A
公开(公告)日：1985-06-18
申请号：JP21957583
申请日：1983-11-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMAMOTO KEIICHI , YAMANE TAKASHI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent leakage of a molten from the end of a billet and to cast stably the billet by controlling the heating areas in the upper part of stationary gates pressed to both end faces of two water-cooling rolls and the cooling areas in the lower part according to the thickness of the billet and the radius of the water-cooling rolls. CONSTITUTION:The upper parts of the refractory materials 7 on the front surfaces of stationary gates 2, 2' are heated to a high temp. by electric heaters 8 at the rear side and the lower parts are cooled by the cooling water passing through the inside of water cooling chillers 9 at the rear side. When a molten metal 4 is poured into the space formed of water cooling rolls 1, 1' and the gates 2, 2', the molten metal 4 is cooled by the rolls 1, 1' to form a billet 3. The position of the chillers 9 in the lower parts of the stationary gates is so controlled as to have the distance (l) satisfying the equation I where the distance between the neutral point of the water cooling rolls and the top end of the chillers 9 is designated as l(mm.), the radius of the casting rolls as R(mm.) and the thickness of the billet as t(mm.) thereby controlling the formation of the solidified metal on the wall surfaces of the stationary gates.

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