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1. 发明专利

JP2011177766A Method for using sliding nozzle device 有权
标题翻译：使用滑动喷嘴装置的方法
公开(公告)号：JP2011177766A
公开(公告)日：2011-09-15
申请号：JP2010045770
申请日：2010-03-02
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： TSUZUKI TETSUO , SATO TOSHIYUKI , UEDA KAZUNORI , SHIGENAGA YASUO , FUKUNAGA SHINICHI , HONDA NAOHISA
IPC分类号： B22D41/40 , B22D11/10 , B22D41/28
摘要： PROBLEM TO BE SOLVED: To provide a method for using a sliding nozzle device which can deal with high grade steel and minimize the increase of refractory cost as necessary.
SOLUTION: In the method for using a sliding nozzle device of applying bearing pressure to a space between plates by a bearing pressure variable mechanism, when relatively high bearing pressure is applied, relatively thick plates 5a, 7a are used, and, when relatively low bearing pressure is applied, relatively thin plates 5b, 7b are used, and further, spacers 14 with a thickness corresponding to a degree at which the plates are thinned are arranged at the non-sliding face sides of the plates 5b, 7b.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用能够处理高等级钢的滑动喷嘴装置的方法，并且根据需要最小化耐火材料成本的增加。解决方案：在使用通过轴承压力可变机构将轴承压力施加在板之间的空间的滑动喷嘴装置的方法中，当施加相对较高的轴承压力时，使用相对厚的板5a，7a，当施加相对低的轴承压力，使用相对薄的板5b，7b，并且进一步，在板5b，7b的非滑动面侧布置具有对应于板变薄的程度的厚度的间隔件14。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010207844A Immersion nozzle for continuous casting 有权
标题翻译：连铸喷嘴
公开(公告)号：JP2010207844A
公开(公告)日：2010-09-24
申请号：JP2009055525
申请日：2009-03-09
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： SADANO KENJI , FUKUNAGA SHINICHI , TAKAHASHI SEIICHI , NEHA KEIICHIRO , TSUZUKI TETSUO , MIZOBE ARIHITO
IPC分类号： B22D11/10 , B22D41/50 , B22D41/58
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle for continuous casting capable of suppressing local erosion of a fire resistant material for supplying gas and of uniformly stably carrying out blow-in of an inert gas in a circumferential direction.
SOLUTION: The immersion nozzle 10 for continuous casting carries out flow control of molten steel from a tundish by a stopper 12 arranged at an inlet 11 for molten steel flow formed of the fire resistant material for supplying gas and charges the molten steel in a molten steel passage 13 from a discharge port 14 to a mold while blowing the inert gas into the molten steel from the fire resistant material for supplying gas. When the inner diameter D of the molten steel passage below a position P abutting on the stopper 12 and at the height position of the discharging port 14 is made to be D, at least a part of a working surface 17 within a range R where a length H from the upper end position T1 of the inlet 11 for the molten steel flow to the below is 40 mm or more and (1.1×D+78) mm or less is formed of the fire resistant material for supplying gas, and a fire resistant material 18 for preventing errosion is arranged at a part of the working surface 17 within the range R below the position P abutting on the stopper 12.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制用于供给气体的耐火材料的局部腐蚀并且均匀地稳定地在圆周方向上进行惰性气体吹入的连续铸造用浸渍喷嘴。解决方案：用于连续铸造的浸入式喷嘴10通过设置在用于供应气体的耐火材料形成的钢水流入口11处的塞子12从中间包进行钢水的流量控制，并将钢水充入从用于供给气体的耐火材料吹入惰性气体进入钢水的从出料口14到模具的钢水通道13。当钢水通道的低于位于止动件12上的位置P和排出口14的高度位置的内径D为D时，工作表面17的至少一部分在R的范围内，其中a 从用于钢水流入口的入口11的上端位置T1的长度H为40mm以上，并且由用于供给气体的耐火材料形成（1.1×D + 78）mm以下，在工件表面17的一部分上，在与止动件12邻接的位置P下方的范围R内布置防止磨损的耐磨材料18.（C）2010，JPO＆INPIT

3. 发明专利

JP2009166110A Tundish for continuous casting, and method for preventing penetration of metal into refractory thereof 有权
$Tundish for continuous casting, and method for preventing penetration of metal into refractory thereof$
标题翻译：连续铸造用TNDNDISH和用于预防金属渗透到其中的方法
公开(公告)号：JP2009166110A
公开(公告)日：2009-07-30
申请号：JP2008009533
申请日：2008-01-18
申请人： Astec Irie Co Ltd , Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 株式会社アステック入江 , 黒崎播磨株式会社
发明人： FUKUNAGA SHINICHI , ITAKUSU MOTOKUNI , AMANO JIRO , GOTO TOSHIYUKI , YAMAJI KIYOSHI , KONO KOICHI
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a tundish for continuous casting which can improve the productive efficiency of a slab produced by continuous casting, can reduce the operational working of a refractory material, and can reduce the amount of the refractory material to be used, and to provide a method for preventing the penetration of metals into the refractory material thereof. SOLUTION: The tundish for continuous casting in which a shaped refractory 11 is arranged at the inside of an iron shell 10, and is provided with: a molten steel supply chamber 13 receiving a molten steel from a molten steel pan; a molten steel exhaust chamber 14 having an exhaust port injecting the molten steel to a mold, molten steel flow passages 17, 18 having a refractory material 26, partitioning the molten steel supply chamber 13 and the molten steel exhaust chamber 14, and further communicating them; and a gate 15 provided with an iron core 25 for induction heating the molten steel passing through the molten steel flow passages 17, 18. The iron shell 10 or the shaped refractory 11 is fitted and fixed with a pressing member 16 arranged projectingly to either or both of the inside of the gate 15 and the upper face of the gate 15. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供连续铸造的中间包，其可以提高通过连续铸造生产的板坯的生产效率，可以减少耐火材料的操作工作，并且可以将耐火材料的量减少为并且提供一种防止金属渗入耐火材料的方法。解决方案：用于连续铸造的中间包，其中成形耐火材料11布置在铁壳10的内部，并且设置有：从钢水盘接收钢水的钢水供应室13; 具有将钢水喷射到模具的排气口的钢水排气室14，具有耐火材料26的钢水流路17,18，分隔钢水供给室13和钢水排气室14，并进一步连通 ; 以及设置有用于感应加热通过钢水流路17,18的钢水的铁芯25的门15.铁壳10或成形耐火材料11被装配并固定有按压构件16，该按压构件16突出地布置在任一个或门15的内部和门15的上表面。版权所有：（C）2009，JPO＆INPIT

4. 发明专利

JP2005342761A Upper nozzle for continuous casting and its using method 审中-公开
标题翻译：用于连续铸造的上喷嘴及其使用方法
公开(公告)号：JP2005342761A
公开(公告)日：2005-12-15
申请号：JP2004166109
申请日：2004-06-03
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： UEDA KAZUNORI , FUKUNAGA SHINICHI , TSUZUKI TETSUO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide an upper nozzle for continuous casting and its using method by which the maintenance work after completing the continuous casting can be simplified by preventing the sticking of non-metallic inclusion and metal and also, the quality of a cast slab and the yield of a product can be improved.
SOLUTION: In the whole inner surface or a part of the nozzle hole 14 of the upper nozzle 10 for continuous casting, set by communicating with the upper end part of a flow-out hole 13 of a sliding nozzle 11 for performing the flow-rate control of molten steel, a refractory 15 containing ≥10 mass% dolomite clinker, is lined and MgO contained in the refractory 15 is 20 to 70 mass%. It is desirable to satisfy ≥3 mm thickness T of the refractory 15 and 0.1≤T
2 /L≤10 the relation of the thickness T and a length L of the refractory 15.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于连续铸造的上喷嘴及其使用方法，通过该方法可以通过防止非金属夹杂物和金属的粘附而简化连续铸造完成后的维护工作，并且还可以简化可以改善铸坯和产品的产率。解决方案：在用于连续铸造的上喷嘴10的喷嘴孔14的整个内表面或一部分中，通过与滑动喷嘴11的流出孔13的上端部连通，含有≥10质量％的白云石熟料的耐火材料15是熔融液的流量控制，耐火材料15中含有的MgO为20〜70质量％。希望满足耐火材料15的≥3mm厚度T和耐火材料15的厚度T与长度L的关系为0.1≤T 2 /L≤10。版权所有：（C）2006，JPO＆NCIPI

5. 发明专利

JP2011020152A Designing device and designing program of long nozzle for continuous casting, ladle assembly for continuous casting, and method for continuous casting 有权
标题翻译：用于连续铸造的长喷嘴的设计和设计方案，用于连续铸造的连接组件和连续铸造方法
公开(公告)号：JP2011020152A
公开(公告)日：2011-02-03
申请号：JP2009167786
申请日：2009-07-16
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： MIZOBE ARIHITO , TSUZUKI TETSUO , KURISU JOJI , KIDO KOJI , SHIMOKASA TOMOHARU , FUKUNAGA SHINICHI , SADANO KENJI , OKAWA TAKESHI
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide a designing device of a ladle assembly for continuous casting, capable of sufficiently preventing spouting of molten steel from the joint part of the upper edge of a long nozzle when opening an immersed hole. SOLUTION: The designing device of a ladle assembly for continuous casting includes: a sand pole movement calculating means for calculating the temporal changes in the speed and the position of the sand pole and for further calculating the temporal change in the height of the level of pooled molten steel that is pooled on the sand pole, while setting as an initial state the state in which a quantity of plugging sand to be dropped in use is filled onto the level of the molten steel pool in the space in a nozzle tube of which the lower part length d is immersed in the molten steel pool, making a sand pole an integrated elastic body that performs stress transmission with a pressure coefficient of μ w k, and allowing the molten steel to flow in with a volume flow of Q m from the upper part of the nozzle; a minimum nozzle-diameter determining means for calculating the height of the level of the pooled molten steel at the time when all of the sand pole is discharged through the lower edge of the nozzle by using the sand pole movement calculating means while changing a tube inner diameter R step-wise, and for determining the minimum inner diameter of the nozzle so that the height of the level is not higher than the height of the upper edge of the nozzle; and a nozzle volume calculating means for calculating a required in-tube volume in the space in the nozzle tube based on the minimum tube inner diameter R of the nozzle. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于连续铸造的钢包组件的设计装置，其能够充分防止当打开浸入的孔时从长喷嘴的上边缘的接合部分喷出钢水。解决方案：用于连续铸造的钢包组件的设计装置包括：砂柱运动计算装置，用于计算砂柱的速度和位置的时间变化，并且用于进一步计算砂杆高度的时间变化汇集在砂柱上的汇集的钢水的水平，同时将在使用中掉落的一定数量的堵塞砂填充到喷嘴管的空间中的钢水池的高度的初始状态其中下部长度d浸入钢水池中，使砂极成为压力系数μ w K的应力传递的一体化弹性体，并允许钢水流动具有来自喷嘴上部的Q m 的体积流量; 最小喷嘴直径确定装置，用于计算在通过使用砂杆运动计算装置将所有的砂柱通过喷嘴的下边缘排出时，合并钢水的高度高度，同时改变管内直径R分段，并且用于确定喷嘴的最小内径，使得水平高度不高于喷嘴的上边缘的高度; 以及喷嘴体积计算装置，用于基于喷嘴的最小管内径R计算喷嘴管的空间中所需的管内体积。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010221227A Method for applying spraying of coating material to tundish 有权
标题翻译：将涂料涂抹于土耳其的方法
公开(公告)号：JP2010221227A
公开(公告)日：2010-10-07
申请号：JP2009068436
申请日：2009-03-19
申请人： Astec Irie Co Ltd , Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 株式会社アステック入江 , 黒崎播磨株式会社
发明人： MIZUMA YOSHIHIRO , AKAI SATORU , SHIMOKASA TOMOHARU , FUKUNAGA SHINICHI , TAKAHASHI SEIICHI , SADANO KENJI , NISHIKAWA YOSHITO , OTANI SHUJI
IPC分类号： B22D41/02 , B22D11/10 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for applying the spraying a coating material to a tundish which can form a coating layer hard to peel.
SOLUTION: The spraying application method comprises: a stage where, while spraying a coating material to the bottom face of a tundish through a nozzle, the region to be sprayed is scanned within a bottom face so as to form a coating layer at the bottom face thereof; and a stage where the region to be sprayed is shifted to the side face 12 of the tundish, thereafter, provided that the angle between the nozzle 2 and the side face 12 is defined as α° and the expanding angle of the coating material sprayed from the nozzle is defined as β°, the region to be sprayed is made to go around along the side face under the conditions satisfying α-β/2 ≥50, the region to be sprayed is increased every time it rounds, and the cycle is repeated so as to form a coating layer at the side face.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种将涂料喷涂到可形成难以剥离的涂层的中间包上的方法。解决方案：喷涂施加方法包括：在通过喷嘴将涂料喷涂到中间包的底面的同时，在底面内扫描要喷涂的区域，以形成涂层其底面; 以及喷射区域向中间包的侧面12移动的阶段，此后，只要将喷嘴2与侧面12之间的角度定义为α°，并将涂覆材料的喷射角从喷嘴被定义为β°，在满足α-β/2≥50的条件下，使喷射区域沿着侧面环绕，每次循环时喷射区域增加，重复以在侧面形成涂层。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010029895A Refractory for nozzle used for continuous casting and nozzle for continuous casting 有权
$Refractory for nozzle used for continuous casting and nozzle for continuous casting$
标题翻译：用于连续铸造和连续铸造的喷嘴的喷嘴用耐火材料
公开(公告)号：JP2010029895A
公开(公告)日：2010-02-12
申请号：JP2008193734
申请日：2008-07-28
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： MORIKAWA KATSUMI , SASAKI AKINARI , HIRAIWA YOSHITAKA , NEHA KEIICHIRO , SADANO KENJI , FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a refractory for an interlayer of a nozzle for continuous casting, which prevents press crack of an outer circumferential side layer due to thermal expansion difference of an inner hole side layer and an outer circumferential side layer made of a body material, has a shape capable of fixing the inner hole side layer to the outer circumferential side layer at a predetermined interval, and has a function for preventing exfoliation of the inner hole side layer during casting in the nozzle for continuous casting with an improved durability achieved by disposing a layer with high functions such as high corrosion resistance and high antiadhesiveness at the inner hole side. SOLUTION: The refractory contains ≥10 volume% and ≤75 volume% of a hollow refractory aggregate which satisfies the relation of R/t ≥10, wherein R is an average radius of a particle and t is an average wall thickness. The refractory contains one or more kinds of single metals or alloys of Al, Si, and Mg in an amount of ≥0.5 mass% and ≤15 mass% in total in terms of only a metal component, and carbon ≥2 mass% and ≤99.5 mass% of carbon, as a ratio of a residual part other than the hollow refractory aggregate to a total amount. The refractory is arranged between the inner hole side layer 2 and the outer circumferential side layer 3, 4 of the nozzle for continuous casting as the interlayer 1. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于连续铸造的喷嘴的中间层的耐火材料，其防止由于制成的内孔侧层和外周侧层的热膨胀差导致的外周侧层的挤压裂纹具有能够以规定间隔将内孔侧层固定到外周侧层的形状，并且具有防止在铸造中的内孔侧层在用于连续铸造的喷嘴中的剥离的形状通过在内孔侧设置具有高耐腐蚀性和高抗粘性等高功能的层来提高耐久性。解决方案：耐火材料包含满足R /t≥10的关系的中空耐火骨料的≥10体积％和≤75体积％，其中R是颗粒的平均半径，t是平均壁厚。该耐火材料含有一种或多种Al金属或Al的合金，其中Al，Si和Mg的合金量仅为金属成分的总量的≥0.5质量％和≤15质量％，碳≥2质量％≤ 99.5质量％的碳，作为中空耐火骨料以外的残留部分的比例为总量。耐火材料布置在作为中间层1的连续铸造用喷嘴的内孔侧层2和外周侧层3,4之间。（C）2010，JPO＆INPIT

8. 发明专利

JP2010029894A Refractory for interlayer of nozzle for continuous casting and nozzle for continuous casting 有权
$Refractory for interlayer of nozzle for continuous casting and nozzle for continuous casting$
标题翻译：用于连续铸造的喷嘴和连续喷射喷嘴的中间层的耐火材料
公开(公告)号：JP2010029894A
公开(公告)日：2010-02-12
申请号：JP2008193730
申请日：2008-07-28
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： MORIKAWA KATSUMI , SASAKI AKINARI , HIRAIWA YOSHITAKA , NEHA KEIICHIRO , SADANO KENJI , FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a refractory (mortar) for an interlayer of a nozzle for continuous casting, which prevents press crack of an outer circumferential side layer due to thermal expansion difference of an inner hole side layer and the outer circumferential side layer made of a body material and has a shape capable of fixing the inner hole side layer to the outer circumferential side layer (a body of the nozzle for continuous casting) at a predetermined interval in the nozzle for continuous casting with an improved durability achieved by disposing a layer with high functions such as high corrosion resistance and high antiadhesiveness at the inner hole side, and also to provide a nozzle for continuous casting using the refractory for the interlayer.
SOLUTION: The refractory for the interlayer of the nozzle for continuous casting contains ≥10 volume% and ≤75 volume% of a hollow refractory aggregate which satisfies the relation of R/t≥10, wherein R is an average radius of a particle and t is an average wall thickness. The refractory is arranged between the inner hole side layer 2 and the outer circumferential side layer 3, 4 of the nozzle for continuous casting as the interlayer 1.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于连续铸造的喷嘴的中间层的耐火材料（砂浆），其防止由于内部空气侧层和外周侧层的热膨胀差引起的外周侧层的冲压并且具有能够以提高的耐久性在连续铸造用喷嘴中以预定间隔将内孔侧层固定到外周侧层（用于连续铸造的喷嘴的主体）的形状通过在内孔侧设置具有高耐腐蚀性和高抗粘性等高功能的层，并且还提供使用中间层的耐火材料进行连续铸造的喷嘴。解决方案：用于连续铸造用喷嘴的中间层的耐火材料包含满足R /t≥10的关系的中空耐火骨料的≥10体积％和≤75体积％，其中R是平均半径颗粒和t是平均壁厚。耐火材料布置在作为中间层1的连续铸造用喷嘴的内孔侧层2和外周侧层3,4之间。（C）2010，JPO＆INPIT

9. 发明专利

JP2008023574A Method for applying porous plug for tundish 审中-公开
标题翻译：应用多孔插管的方法
公开(公告)号：JP2008023574A
公开(公告)日：2008-02-07
申请号：JP2006201446
申请日：2006-07-25
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： HARA SHUICHI , TSUZUKI TETSUO , TAKANO KAZUHISA , AMANO JIRO , FUKUNAGA SHINICHI
IPC分类号： B22D11/11 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a method for successively using a porous plug to a plurality of tundish castings without exchanging the porous plug in each tundish cast with which conventionally, the porous plug repaired and maintained through cooling process with water-cooling at each tundish cast is fitted to the tundish and used.
SOLUTION: In a continuous casting operation for tundish which is water-cooled at each tundish cast from the starting of the filling of molten steel into the tundish 10 to the completion of the discharging of the molten steel and performs the repair and the maintenance of the tundish after water-cooling; under the fitting state of the porous plug 2 after using as wetting state with the water-cooling, the moisture in the porous plug 2 is vaporized and removed by supplying and flowing combustion waste gas 6 after burning the gas for heating supplied in the tundish 10 for drying or preheating the tundish 10 by supplying and making flow into the porous plug 2 from the inner part of the tundish 10 and thereafter, the porous plug 2 is successively used by supplying the next tundish cast.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种连续使用多孔塞子到多个中间包铸件的方法，而不是在每个中间包铸件中更换多孔塞子，其中通常通过冷却过程通过水冷而修复和保持多孔塞子在每一个中间包浇铸中都使用中间包。
解决方案：在中间包的连续铸造操作中，在从钢水充填到中间包10开始的每个中间包浇铸中水冷，完成钢水的排放，并执行修理水冷后中间包的维护; 在使用水冷却后的多孔塞2的装配状态下，通过供给和流动燃烧废气6，在供给中间包10的加热气体后，多孔塞2中的水分蒸发除去用于通过从中间包10的内部供应和流入多孔塞2中来干燥或预热中间包10，之后通过供应下一个中间包浇铸而连续使用多孔塞2。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2006068799A Hardly adhesive continuous casting nozzle 有权
标题翻译： HARDLY粘合连续铸造喷嘴
公开(公告)号：JP2006068799A
公开(公告)日：2006-03-16
申请号：JP2004258092
申请日：2004-09-06
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： OGATA KOJI , KOGA SAEKO , FUKUNAGA SHINICHI
IPC分类号： B22D11/10 , B22D41/54 , C04B35/06
摘要： PROBLEM TO BE SOLVED: To prevent the sticking of alumina in molten steel onto the working surface in a long time casting of the molten steel and also, to improve the erosion, in a continuous casting nozzle disposing a refractory comprising a dolomite clinker on the surface in contact with the molten steel. SOLUTION: The refractory comprising only the dolomite clinker or the composition of the dolomite clinker and magnesia clinker, formulated so as to become 0.33-3.0 mass ratio of W1/W2 of the content W1 of CaO component and the content W2 of MgO component, mixed with a binder, impregnated with pitch or tar after kneading, forming and heat-treating, is disposed at a portion at least in contact with the molten steel. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题为了防止在长时间铸造钢水中将钢水中的氧化铝粘附到工作表面上，并且为了改善侵蚀，在设置包含白云石熟料的耐火材料的连续铸造喷嘴中在与钢水接触的表面上。解决方案：仅包含白云石熟料或白云石熟料和氧化镁熟料的组合物的耐火材料，配制成为CaO成分的含量W1的W1 / W2和MgO的含量W2的0.33〜3.0质量％在与钢水至少接触的部分设置在捏合，成型和热处理之后用沥青或焦油浸渍的粘合剂的组分，与粘合剂混合。版权所有（C）2006，JPO＆NCIPI

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