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1. (WO2019049815) MONOLITHIC REFRACTORY
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Pub. No.: WO/2019/049815 International Application No.: PCT/JP2018/032553
Publication Date: 14.03.2019 International Filing Date: 03.09.2018
IPC:
C04B 35/66 (2006.01) ,B22D 11/10 (2006.01) ,B22D 41/54 (2006.01) ,C21C 7/072 (2006.01) ,C21C 7/10 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
66
Monolithic refractories or refractory mortars, including those whether or not containing clay
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
D
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11
Continuous casting of metals, i.e. casting in indefinite lengths
10
Supplying or treating molten metal
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
D
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
41
Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
50
Pouring-nozzles
52
Manufacturing or repairing thereof
54
characterised by the materials used therefor
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
7
Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/-C21C5/118
04
Removing impurities by adding a treating agent
072
Treatment with gases
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
7
Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/-C21C5/118
10
Handling in vacuum
Applicants:
黒崎播磨株式会社 KROSAKIHARIMA CORPORATION [JP/JP]; 福岡県北九州市八幡西区東浜町1番1号 1-1, Higashihama-machi, Yahatanishi-ku, Kitakyushu-shi, Fukuoka 8068586, JP
Inventors:
辻 陽一 TSUJI, Youichi; JP
神尾 英俊 KAMIO, Hidetoshi; JP
細木 亮太 HOSOGI, Ryouta; JP
Agent:
特許業務法人 英和特許事務所 EIWA PATENT FIRM; 福岡県福岡市博多区博多駅前一丁目1番1号 博多新三井ビル 4階 Hakata-Shin-mitsui bldg., 4F, 1-1-1, Hakataekimae, Hakata-ku, Fukuoka-shi, Fukuoka 8120011, JP
Priority Data:
2017-17423311.09.2017JP
Title (EN) MONOLITHIC REFRACTORY
(FR) MATÉRIAU RÉFRACTAIRE MONOLITHIQUE
(JA) 不定形耐火物
Abstract:
(EN) The purpose of the present invention is to improve the thermal shock resistance of a monolithic refractory containing magnesia. Provided is a monolithic refractory which comprises, relative to 100 mass% of a refractory material, 15-50 mass% inclusive of a magnesia material having a particle diameter of 1 mm or more, 2-15 mass% inclusive of a fine alumina powder having a particle diameter of 1-10 μm inclusive, and 1-8 mass% inclusive of an ultrafine silica powder having a particle diameter of less than 1 μm, wherein, when the content of the magnesia material having a particle diameter of 1 mm or more is referred to as A mass%, the content of a magnesia material having a particle diameter less than 1 mm is A/10 mass% or less (including 0) relative to 100 mass% of the refractory material.
(FR) La présente invention concerne l’amélioration de la résistance aux chocs thermiques d’un matériau réfractaire monolithique contenant de la magnésie. La présente invention concerne un matériau réfractaire monolithique qui comprend, par rapport à 100 % en masse de matériau réfractaire, de 15 à 50 % en masse inclus d’un matériau de magnésie ayant un diamètre de particule de 1 mm ou plus, de 2 à 15 % en masse inclus d’une fine poudre d’alumine ayant un diamètre de particule de 1 à 10 µm inclus, et de 1 à 8 % en masse inclus d’une poudre de silice ultrafine ayant un diamètre de particule inférieur à 1 µm, où, lorsque la teneur du matériau de magnésie ayant un diamètre de particule de 1 mm ou plus est désignée par A % en masse, la teneur d’un matériau de magnésie ayant un diamètre de particule inférieur à 1 mm est de A/10 % en masse ou moins (incluant 0) par rapport à 100 % en masse du matériau réfractaire.
(JA) 本発明は、マグネシアを含有する不定形耐火物の耐熱衝撃性を向上させることを目的として、耐火原料100質量%に占める割合で、粒径1mm以上のマグネシア原料を15質量%以上50質量%以下、粒径1μm以上10μm以下のアルミナ微粉を2質量%以上15質量%以下、粒径1μm未満のシリカ超微粉を1質量%以上8質量%以下、それぞれ含有し、前記粒径1mm以上のマグネシア原料の含有量をA質量%としたとき、耐火原料100質量%に占める割合で、粒径1mm未満のマグネシア原料の含有量はA/10質量%以下(0を含む。)である不定形耐火物を提供する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)