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1. 发明专利

JPH06116025A NOZZLE FOR CASTING 失效
公开(公告)号：JPH06116025A
公开(公告)日：1994-04-26
申请号：JP28709892
申请日：1992-10-02
申请人： NIPPON STEEL CORP
发明人： YAMADA YASUHIRO , KANEMATSU KINJI , SUGIYAMA MASAAKI
IPC分类号： B22D11/10 , B22D41/32 , C04B35/48
摘要： PURPOSE:To provide a nozzle for casting capable of preventing blocking due to the sticking of alumina to the inner wall. CONSTITUTION:This nozzle for casting has a compsn. consisting of 50-80wt.% ZrSiO4 and/or ZrO2, 1-20wt.% BaO and/or BaSO4 and 5-30wt.% carbon.

2. 发明专利

JPH0631411A CASTING NOZZLE 失效
公开(公告)号：JPH0631411A
公开(公告)日：1994-02-08
申请号：JP21238892
申请日：1992-07-17
申请人： NIPPON STEEL CORP
发明人： YAMADA YASUHIRO , KANEMATSU KINJI
IPC分类号： B22D11/10 , B22D41/54 , C04B35/16 , C04B35/48
摘要： PURPOSE:To lessen the closure of the casting nozzle by using a compsn. contg. specific ratios of ZrSiO4, ZrO2, steel making slag and carbon in producing the nozzle. CONSTITUTION:The casting nozzle is formed of the compsn. consisting, by weight %, of 50 to 80 one or two kinds of the ZrSiO4 and the ZrO2, 1 to 20 steel making slag and 5 to' 30 carbon. The essential components (CaO+SiO2) of the steel making slag induce a reaction to lower the m.p. by coming into contact with alumina, thereby preventing the adhesion of the alumina. The effect of preventing the adhesion is low if the compounding ratio of the steel making slag is below 1%. The abnormal erosion of the nozzle arises if the compounding ratio exceeds 20%. Zircon or zirconia is compounded with the compsn. in order to impart the corrosion resistance of the nozzle. The corrosion resistance is inferior and the effect of preventing the adhesion is low if the compounding ratio is below 50%. The spalling resistance is inferior when the compounding ratio exceeds 80%.

3. 发明专利

JPS5937707B2 JPS5937707B2 - 失效
公开(公告)号：JPS5937707B2
公开(公告)日：1984-09-11
申请号：JP12302380
申请日：1980-09-05
申请人： Nippon Steel Corp
发明人： FUKUOKA HIROMI , KANEMATSU KINJI , TACHIKAWA MASAAKI , PPONDA KATSUMI
IPC分类号： B22D11/06 , B22D11/10
CPC分类号： B22D11/0642

4. 发明专利

JPS5937706B2 JPS5937706B2 - 失效
公开(公告)号：JPS5937706B2
公开(公告)日：1984-09-11
申请号：JP11923980
申请日：1980-08-29
申请人： Nippon Steel Corp
发明人： FUKUOKA HIROMI , KANEMATSU KINJI
IPC分类号： B22D11/06 , B22D11/10
CPC分类号： B22D11/0642

5. 发明专利

JPS59127956A Preheating method of nozzle for continuous casting 失效
标题翻译：用于连续铸造的喷嘴预热方法
公开(公告)号：JPS59127956A
公开(公告)日：1984-07-23
申请号：JP204583
申请日：1983-01-10
申请人： Nippon Steel Corp
发明人： FUKUOKA HIROMI , KANEMATSU KINJI , IDE HIDEO , NARITA NOBUHIKO
IPC分类号： B22D11/10 , B22D41/60
CPC分类号： B22D41/60
摘要： PURPOSE:To heat uniformly a nozzle to a high temp. in a short time by preheating the nozzle by the Joule heat generated by the electricity conducted at both ends of the nozzle in the longitudinal direction thereof. CONSTITUTION:An upper electrode 3 and lower electrode 4 which are respectively carbonaceous are disposed on both top and bottom end faces of a nozzle 1 for continuous casting in order to conduct electric current from a power source 2 to the top and bottom end faces of the nozzle 1 prior to mounting of the nozzle 1 to the tundish or ladle. The electrodes are sandwiched and fixed between an upper stationary plate 5 and a lower lifting base 6 and AC current is conducted from the AC power source 2 through the electrodes 3, 4. Since the material of the nozzle contains carbon and is conductive, heat is generated in the nozzle 1 by the Joule's, law and the nozzle is heated up to about 900-1,200 deg.C in 10- 20min.
摘要翻译：目的：将喷嘴均匀加热至高温。在短时间内，通过在喷嘴的两端沿其长度方向传导的电产生的焦耳热预热喷嘴。构成：分别含碳的上电极3和下电极4设置在用于连续铸造的喷嘴1的顶端面和底端面上，以便将电流从电源2传导到电源2的顶端和底端面在将喷嘴1安装到中间包或钢包之前的喷嘴1。电极被夹持并固定在上固定板5和下提升基座6之间，并且AC电流从AC电源2通过电极3,4传导。由于喷嘴的材料含有碳并且导电，所以热量为在喷嘴1中由焦耳的法律产生，并且喷嘴在10-20分钟内被加热到约900-1200℃。

6. 发明专利

JPS5747559A Nozzle for production of amorphous metal 失效
标题翻译：用于生产非晶金属的喷嘴
公开(公告)号：JPS5747559A
公开(公告)日：1982-03-18
申请号：JP12302380
申请日：1980-09-05
申请人： Nippon Steel Corp
发明人： FUKUOKA HIROMI , KANEMATSU KINJI , TACHIKAWA MASAAKI , HONDA KATSUMI
IPC分类号： B22D11/06 , B22D11/10
CPC分类号： B22D11/0642
摘要： PURPOSE:To provide a titled nozzle of improved dimensional accuracy which permits easy precision working with specular polishing by constituting a nozzle tip having a slit opening of two or more split bodies and forming the side wall surfaces of the slit as open outside surfaces. CONSTITUTION:A nozzle tip is constituted of approximately semicircular split bodies 1, 2 of the same shape on the right and left, and a slit opening 9 is formed in the central part. Namely, the respective surfaces enclosing the opening 9 are formed into the open outside surfaces of the respective split bodies 1, 2. Hence, despite the use of a material of superior abrasion resistance but poor workability such as high purity alumina or silicon nitride for the bodies 1, 2, the high dimensional accuracy by the specular working of the side wall surfaces of the opening 9 is obtained. The yield of working is considerably improved as well. In the figure, 3, 4 denote diametral parts, 5, 6 projecting parts, 7, 8 stepped shoulder parts, 10 a nozzle body and 10' a tapered surface, respectively.
摘要翻译：目的：提供一种改进的尺寸精度的标题喷嘴，其通过构成具有两个或多个分裂体的狭缝开口的喷嘴头，并且将狭缝的侧壁表面形成为敞开的外表面，从而容易地进行镜面抛光的精密加工。构成：喷嘴尖端由左右相同形状的大致半圆形分割体1,2构成，在中央部形成狭缝开口9。也就是说，包围开口9的各个表面形成为各个分体本体1,2的开放的外表面。因此，尽管使用具有优异耐磨性的材料，但是加工性差的材料，例如高纯度氧化铝或氮化硅，用于主体1,2通过开口9的侧壁表面的镜面加工获得高尺寸精度。工作的收益也大大提高。在图中，3,4分别表示直径部分5,6个突出部分，7,8个台肩部分，10个喷嘴体和10'个锥形表面。

7. 发明专利

JPH1161219A METHOD FOR REFORMING SLAG OF STAINLESS STEEL 失效
公开(公告)号：JPH1161219A
公开(公告)日：1999-03-05
申请号：JP23912797
申请日：1997-08-21
申请人： NIPPON STEEL CORP
发明人： IDE HIDEO , KANEMATSU KINJI
IPC分类号： C21C5/28 , F27D15/00
摘要： PROBLEM TO BE SOLVED: To prevent the powdering by reducing the consumption of a borate compound as much as possible without giving adverse effect on molten steel quality to reform slag of stainless steel. SOLUTION: The borate compound, silica base material having

8. 发明专利

JPH06142861A NOZZLE FOR CASTING 失效
公开(公告)号：JPH06142861A
公开(公告)日：1994-05-24
申请号：JP32382192
申请日：1992-11-10
申请人： NIPPON STEEL CORP
发明人： YAMADA YASUHIRO , KANEMATSU KINJI , SUGIYAMA MASAAKI
IPC分类号： B22D11/10 , B22D41/54 , C04B35/48
摘要： PURPOSE:To prevent the clogging of a nozzle by adhesion of alumina to the inside wall of the nozzle by using the nozzle for casting consisting of a compsn. composed of specific weight ratios of CaO, ZrO2, BaO or BaSO4 and carbon. CONSTITUTION:This nozzle for casting is constituted of the compsn. composed of 50 to 95wt.% particles of the compsn. consisting of 5 to 35:65 to 95 ratios of the CaO and the ZrO2 by weight, 1 to 20wt.% one or two kinds of the BaO or the BaSO4 and 5 to 30wt.% carbon. So-called inclusions mainly composed of the alumina coexisting in molten steel come into contact with the inside layer part of the nozzle and temporarily stick thereto if the molten steel is cast. The ZrO2 and the CaO dissociate to C2O and ZrO2 and the BaSO4 is oxidized by the oxygen in the steel to BaO in the surface layer part of the nozzle. The CaO and BaO react with the alumina sticking to the surface layer part of the nozzle and form a low melting product which flows without sticking. The carbon exhibits effect in thermal impact resistance and slag swellability.

9. 发明专利

JPH05302704A 失效
公开(公告)号：JPH05302704A
公开(公告)日：1993-11-16
申请号：JP10721992
申请日：1992-04-27
申请人： NIPPON STEEL CORP
发明人： ASO TATSUJI , KANEMATSU KINJI , YOSHIMURA TAKASHI , TAMURA MICHIO
IPC分类号： F23D14/12 , F23C3/00
摘要： PURPOSE:To unify temperature at the surface of an outer tube by providing a first burner having a number of fuel gas holes in the longitudinal direction of the tube and a second burner having fuel gas holes in tangential direction circumferentially. CONSTITUTION:To supply a first burner, pipes are extended from outlet ports 21 in a fuel gas header and the fuel gas holes 26 at their downstream ends are formed in the longitudinal direction of the tube and at regular intervals of 40 deg. circumferentially; air holes 25 are formed one between adjacent fuel gas pipes, i.e., at regular intervals of 40 deg.. To supply a second burner, a fuel gas hole 29 is formed to feed a flow of fuel gas 8 and air 9 passing an ignition plug 16 and designed to send the flow in a direction tangent to a circumference of a heat-insulating ring 12 and another fuel gas hole 29 is formed exclusively to feed fuel gas 8 and designed to send its flow in a direction tangent to the circumference of the heat-insulating ring 12. Consequently, uniformity can be attained in the temperature in the longitudinal direction of the tube.

10. 发明专利

JPH0437674A CERAMIC BREAK RING 失效
公开(公告)号：JPH0437674A
公开(公告)日：1992-02-07
申请号：JP13709390
申请日：1990-05-29
申请人： NIPPON STEEL CORP
发明人： KANEMATSU KINJI , ASO TATSUJI
IPC分类号： B22D11/04 , C04B41/85
摘要： PURPOSE:To inhibit the wear of a ceramic break ring near a mold and to prolong continuous casting time by incorporating CaO and B2O3 into the pores in BN-contg. sintered ceramics forming the ring. CONSTITUTION:CaO and B2O3 are incorporated into the pores in BN-contg. sintered ceramics forming a ceramic break ring. The diameter of the pores is reduced and the wear of the ring is inhibited. Since CaO and B2O3 have low reactivity with molten steel, the expansion of the pores is prevented.

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