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公开(公告)号：KR100825635B1
公开(公告)日：2008-04-25
申请号：KR1020010072371
申请日：2001-11-20
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC: C04B35/101 , C04B35/66
Abstract: 본 발명은 고로 출선통의 손상부위에 사용되는 긴급보수용 내화물에 관한 것으로, 그 목적은 작업성과 조기강도가 우수한 고로출선통 보수용 내화 조성물을 제공하는 것이다.
상기 목적을 달성하기 위한 본 발명은
전융질 알루미나가 5-3mm :3-6중량%, 3-1mm: 16-22중량%, 1-0.5mm: 14-18중량%, 0.5-0.074mm: 15-17중량%,
(b) 탄화규소: 7-12중량%, (c) 흑연분말: 3-4중량%, (d) 카본블랙: 5-7중량%, (e) 코크스분말: 6-8중량%, (f) 금속실리콘: 3-4중량%, (g) 타 르: 13-14중량% 및 외삽으로 유기섬유 3중량%로 구성되는 고로 출선통 보수용 내화물에 관한 것을 그 기술적요지로 한다.
본 발명의 내화조성물은 출선통의 국부적인 손상부위를 열간에서 긴급보수할 수 있어 출선통의 보수시간 단축 및 수명향상에 효과가 있다.
열간보수 내화재, 전융질 알루미나, 탄화규소, 흑연분말, 타르-
公开(公告)号：KR100461737B1
公开(公告)日：2004-12-13
申请号：KR1019990033162
申请日：1999-08-12
Applicant: 재단법인 포항산업과학연구원 , 주식회사 포스코
Inventor： 김효준
IPC: C04B35/101 , C04B35/622
Abstract: PURPOSE: A ramming refractory for covering blast furnace is provided for maintaining high corrosion resistance against melted iron and slag by recirculation of waste refractory and production of ramming refractory. CONSTITUTION: A ramming refractory for covering blast furnace comprises Al2O3-SiC-C waste refractory containing at least 60 wt.% of alumina based on total weight percent of composition. The ramming refractory consists of 10-15 wt.% of the waste refractory having particle size of 10-5mm, 20-30 wt.% of the waste refractory having particle size of 5-3mm, 15-20 wt,% of the waste refractory having particle size of 3-1mm, and 20-25 wt.% of the waste refractory having particle size of 1mm or less. Also, the ramming refractory is produced by recirculating the waste refractory by directly using all of broken waste refractory as aggregates and mixing them.
Abstract translation: 目的：提供一种用于覆盖高炉的捣碎耐火材料，用于通过废物耐火材料的再循环和捣实耐火材料的生产来保持对熔融铁和炉渣的高度耐腐蚀性。 构成：一种用于覆盖高炉的捣解耐火材料，包含基于组合物总重量百分比含有至少60重量％氧化铝的Al2O3-SiC-C废物耐火材料。 捣实耐火材料由10-15重量％的粒度为10-5mm的废物耐火材料，20-30重量％的粒度为5-3mm的废物耐火材料，15-20重量％的废物 具有3-1mm粒度的耐火材料和20-25重量％的具有1mm或更小粒度的废物耐火材料。 此外，通过直接使用全部破碎的废物耐火材料作为聚集体并将它们混合，再循环废物耐火材料来生产捣碎耐火材料。
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公开(公告)号：KR100450222B1
公开(公告)日：2004-09-24
申请号：KR1020000051478
申请日：2000-09-01
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Inventor： 김효준
Abstract: PURPOSE: A refractory for repairing damaged hot iron runner of blast furnace rapidly is provided, which are excellent in attachment, corrosion-resistance and strength by using fused alumina as a main material and excluding water unlike a conventional repairing refractory. CONSTITUTION: The repairing refractory comprises 5-10wt.% of fused alumina, containing more than 90wt.% of alumina, being 1-3mm in size, 25-35wt.% of fused alumina being 0.5-1mm, 10-15wt.% of fused alumina less than 0.044mm, 7-15wt.% of SiC, being 0.074mm in size and 80 % in purity, to increase corrosion-resistance, 7-13wt.% of calcined alumina less than 0.044mm, 7-10wt.% of clay, 3-6wt.% of borax, 3-5wt.% of Si and 5-7wt.% of ferro silicon nitride to accelerate sintering, 5-10wt.% of pitch, and 5wt.% of phenol resin as a binder.
Abstract translation: 目的：提供一种耐火材料，用于快速修复高炉损坏的热铁流道，与传统的修补耐火材料不同，它通过使用熔融氧化铝作为主要材料并排除水分而具有优异的附着性，耐腐蚀性和强度。 本发明的修复耐火材料包括5-10wt％的熔凝氧化铝，含有90wt％以上的氧化铝，尺寸为1-3mm，25-35wt％的熔凝氧化铝为0.5-1mm，10-15wt％的 小于0.044mm的熔凝氧化铝，7-15wt％的SiC，尺寸为0.074mm和80％的纯度，以增加耐腐蚀性，7-13wt。％的煅烧氧化铝小于0.044mm，7-10wt％ 的硼砂，3-6重量％的硼砂，3-5重量％的Si和5-7重量％的氮化硅铁以加速烧结，5-10重量％的沥青和5重量％的作为粘合剂的酚醛树脂 。
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公开(公告)号：KR1020040022260A
公开(公告)日：2004-03-12
申请号：KR1020020052710
申请日：2002-09-03
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Inventor： 김효준
IPC: C04B35/10
CPC classification number: C04B35/66 , C04B35/62839 , C04B35/74 , C04B2235/425
Abstract: PURPOSE: A refractory for plugging blast furnace tap hole is provided, which has excellent corrosion resistance, abrasion resistance and adhesion to original materials by coating the surface of alumina with pitch and graphite powder. CONSTITUTION: The refractory for plugging blast furnace tap hole comprises 15-28wt.% of silicon carbide for corrosion resistance against slag and the prevention of oxidation of carbon, 3-7wt.% of calcined alumina, 2-5wt.% of magnesia to control expansion of plugging materials, 7-12wt.% of clay for plasticity, 7-12wt.% of cokes for increase of porosity, 2-5wt.% of metal silicon, 4-10wt.% of silicon nitride iron, the balance of graphite-coated fused alumina for corrosion-resistance and adhesion, and inevitable impurities.
Abstract translation: 目的：提供用于堵塞高炉煤气孔的耐火材料，通过涂覆沥青和石墨粉末的氧化铝表面，具有优异的耐腐蚀性，耐磨性和与原料的粘合性。 构成：用于堵塞高炉矿井的耐火材料包括15-28wt。％的碳化硅，用于防止炉渣腐蚀，防止碳氧化，3-7wt。％的煅烧氧化铝，2-5wt％的氧化镁控制 堵塞材料膨胀，可塑性粘土7-12wt％，增加孔隙率7-12wt％的焦炭，金属硅的2-5wt％，氮化硅铁的4-10wt％，石墨的余量 涂层的熔融氧化铝具有耐腐蚀性和附着力，以及不可避免的杂质。
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公开(公告)号：KR1020040022259A
公开(公告)日：2004-03-12
申请号：KR1020020052709
申请日：2002-09-03
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Inventor： 김효준
IPC: C04B35/565
CPC classification number: C04B41/5001 , C04B41/5096 , C04B2111/00551
Abstract: PURPOSE: A carbon injection refractory composition used for the crack between hearth bottom and furnace shell is provided, which has excellent injection property and thermal conductivity by comprising amorphous graphite, silicon carbide and carbon black. CONSTITUTION: The carbon injection refractory composition comprises 9-17wt.% of amorphous graphite with less than 0.048micrometer in size for thermal conductivity, 7-12wt.% of carbon black for increase of injection property, 7-10wt.% of pitch for adhesion improvement, 24-27wt.% of tar as a liquid binder, the balance of silicon carbide with a size less than 0.048micrometer, and inevitable impurities.
Abstract translation: 目的：提供一种用于炉底和炉壳之间裂纹的碳注射耐火材料组合物，其包括非晶石墨，碳化硅和炭黑，具有优异的注射性能和导热性。 构成：碳注射耐火材料组合物包括9-17重量％的无定形石墨尺寸小于0.048微米的热导率，7-12重量％的炭黑用于提高注射性能，7-10重量％的粘附间距为7-10重量％ 改进了24-27重量％的作为液体粘合剂的焦油，余量的碳化硅的尺寸小于0.048微米，以及不可避免的杂质。
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Patent Agency Ranking
公开(公告)号：KR1020010018902A
公开(公告)日：2001-03-15
申请号：KR1019990035043
申请日：1999-08-23
Applicant: 재단법인 포항산업과학연구원 , 주식회사 포스코 , 조선내화 주식회사
IPC: C04B35/10
CPC classification number: C04B35/66 , C04B35/101 , C04B35/6303 , C04B2235/3418 , C21B7/12
Abstract: PURPOSE: An intruding refractory composition for repairing around iron tapping outlet is provided, which has high intrusion property and adhesive strength, resulting in prevention of gas outflow. CONSTITUTION: The composition comprises 5-10wt.% and 20-30wt.% of sintered Al2O3 (purity≧98%) having a particle size of 1-3mm and up to 0.004mm, respectively, 55-60wt.% of bauxite(containing Al2O3 more than 60%) having a particle size of 0.047mm, 5-7wt.% of ultrafine SiO2 as a sintering aid, 3-7wt.% of Al2O3 cement and 0.1wt.% of sodium hexametaphosphate as a dispersant.
Abstract translation: 目的：提供一种用于在铁出口周围进行修复的入侵耐火材料组合物，具有高侵入性和粘合强度，从而防止气体流出。 构成：该组合物包含5-10重量％和20-30重量％的烧结Al 2 O 3（纯度≥98％），其粒度分别为1-3毫米和高达0.004毫米，55-60重量％的铝土矿（含 Al 2 O 3大于60％），作为烧结助剂的超细SiO 2为5-7wt％，Al 2 O 3水泥为3〜7wt％，作为分散剂的六偏磷酸钠为0.1wt％。
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公开(公告)号：KR1020000043668A
公开(公告)日：2000-07-15
申请号：KR1019980060073
申请日：1998-12-29
Applicant: 재단법인 포항산업과학연구원
Inventor： 김효준
IPC: C04B35/44
Abstract: PURPOSE: Block molded product is provided, which uses alumina-spinel waste castable generated at ladle and is improved in resistance against abrasion and heat impact. CONSTITUTION: A block molded product comprises various particle sizes of alumina-spinel waste castable powder; 5-10 wt% of alumina powder; 3-7 wt% of calcined alumina; 5-7 wt% of alumina cement as a binder; and 2-4 wt% of steel fiber. Preferably the content of the alumina-spinel waste castable powder is 10-20 wt% if the particle size is 1 mm or less, 15-25 wt% if 1-3 mm, 15-25 wt% if 3-5 mm, and 10-15 wt% if 5-10 mm.
Abstract translation: 目的：提供块状成型产品，其使用在钢包中产生的氧化铝 - 尖晶石废料浇注料，并且耐磨损和热冲击性能得到改善。 构成：块状模制产品包括各种粒径的氧化铝 - 尖晶石废浇注粉末; 5-10重量％的氧化铝粉末; 3-7重量％的煅烧氧化铝; 5-7重量％的氧化铝水泥作为粘合剂; 和2-4重量％的钢纤维。 如果粒径为1mm或更小，氧化铝 - 尖晶石废浇注粉末的含量为10-20wt％，如果为1-3mm，则为15-25wt％，如果为3-5mm则为15-25wt％，如 10-15重量％，如果5-10毫米。
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公开(公告)号：KR1019990052225A
公开(公告)日：1999-07-05
申请号：KR1019970071680
申请日：1997-12-22
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC: C04B35/109
Abstract: 본 발명은 유도용해로의 내장내화물로 사용되는 내화물에 관한 것이며; 그 목적은 유도용해로의 슬랙라인 부분에 적합한 고내식성 내화재료을 제공함에 있다.
상기 목적을 달성하기 위한 본 발명은, 유도용해로용 내장 내화물에 있어서, 순도 95중량%이상인 지르코니아: 40-60중량%, 알루미나: 30-40중량%, 실리카 초미분: 15중량%이하로 구성되는 유도용해로 내장용 내화물에 관한 것을 그 요지로 한다.-
公开(公告)号：KR1019960006234B1
公开(公告)日：1996-05-11
申请号：KR1019930031096
申请日：1993-12-29
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원 , 조선내화 주식회사
IPC: C04B35/657
CPC classification number: C04B35/6303 , C04B35/6313 , C04B35/66 , C04B2235/3206 , C04B2235/3217 , C04B2235/3222 , C04B2235/3241
Abstract: The refractory material is composed of 40-60wt% alumina, 10-40wt% spinel clinker, 3-20wt% chromium oxide, 3-15wt% alumina cement and 2-5wt% sodium hexametaphosphate The used spinel clinker is composed of magnesia(MgO) and alumina(Al2O3) at the weight ratio of 28:72. The obtained refractory material has good corrosion resistance, good slag resistance and minimum adhesion of molten iron, so it improves the life cycle of the laddle.
Abstract translation: 耐火材料由40-60wt％的氧化铝，10-40wt％的尖晶石熟料，3-20wt％的氧化铬，3-15wt％的氧化铝水泥和2-5wt％的六偏磷酸钠组成。所用尖晶石熟料由氧化镁（MgO） 和氧化铝（Al2O3），重量比为28:72。 所获得的耐火材料具有良好的耐腐蚀性，良好的耐渣性和最小的铁水附着力，因此改善了鞍座的使用寿命。
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公开(公告)号：KR1019950007711B1
公开(公告)日：1995-07-14
申请号：KR1019920024976
申请日：1992-12-22
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC: C04B41/50
CPC classification number: C04B41/5092 , C04B28/34 , C04B41/009 , C04B41/85 , C04B41/4535 , C04B35/66 , C04B12/04 , C04B14/303 , C04B22/064 , C04B24/2623 , C04B24/38 , C04B24/383 , C04B40/0268
Abstract: The coating composition is composed of 92.0-95.0 wt.% of an alumina powder, 2.0-5.0 wt.% of a sodium hexamethaphosphorate or sodium tripolyphosphorate, 1.0-3.0 wt.% of a powdery sodium silicate, polyvinyl alcohol, sodium alginate or carboxyl methyl cellulose and 1.0-3.0 wt.% of a slaked line. The refractory brick is coated by adding a mixture of alumina and water (mixing ratio of 1:2 - 1:4) to the coating composition, dipping the refractory brick into the mixed composition, and firing it at 1000-1200 deg.C for 3.0 hr or more.
Abstract translation: 涂料组合物由92.0-95.0重量％的氧化铝粉末，2.0-5.0重量％的六偏磷酸钠或三聚磷酸钠组成，1.0-3.0重量％的粉末状硅酸钠，聚乙烯醇，海藻酸钠或羧基 甲基纤维素和1.0-3.0重量％的熟化品系。 通过向涂料组合物中加入氧化铝和水的混合物（混合比1:2-1:4）来涂覆耐火砖，将耐火砖浸入混合组合物中，并在1000-1200℃下烧制， 3.0小时以上
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