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    저시멘트 내침식 부정형 내화물
    1.
    发明公开
    저시멘트 내침식 부정형 내화물 有权
    低水泥腐蚀电阻式耐火材料

    公开(公告)号：KR1020130024562A

    公开(公告)日：2013-03-08

    申请号：KR1020110088085

    申请日：2011-08-31

    Applicant: 한국과학기술연구원

    Inventor： 임경란 ,  박상환 ,  김창삼 ,  이학만

    IPC: C04B35/10 ,  C04B35/565 ,  C04B35/109 ,  C04B35/01

    CPC classification number: C04B35/6303 ,  C04B35/565 ,  C04B35/6263 ,  C04B35/66 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3246 ,  C04B2235/3418 ,  C04B2235/3826 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9684

    Abstract: PURPOSE: Amorphous low erosion-resisting refractory cement is provided to have excellent adhesion property, intensity, thermal conductivity, and erosion-resisting property by adding alumina cement, zircon, and an alumina binder in a refractory compound with alumina(Al2O3) and silicon carbide (SiC). CONSTITUTION: An amorphous low erosion-resisting refractory cement manufacturing method comprises following steps. Alumina cement, zircon, and an alumina binder are added to a refractory mixture containing alumina(Al2O3) and silicon carbide(SiC). Amorphous refractory cement additionally includes one or more of mixtures selected among magnesium oxide, spinel, zirconia, chromia, or hafnium oxide. The content of the alumina binder is 0.5-4 parts by weight of alumina for 100.0 parts by weight of the whole amorphous refractory cement. In the alumina cement, the amount of calcium oxide(CaO) is 10-30 wt%. The added amount of the alumina cement is 0.5-5 wt% among the whole amorphous refractory cement. The added amount of zircon is 1-5 wt% among the whole amorphous refractory cement.

    Abstract translation: 目的：通过在氧化铝（Al2O3）和碳化硅的耐火材料中添加氧化铝水泥，锆石和氧化铝粘合剂，提供无定形低侵蚀耐火水泥，具有优异的粘附性，强度，导热性和耐腐蚀性 碳化硅（SiC）。 构成：无定形低侵蚀耐火水泥制造方法包括以下步骤。 将氧化铝水泥，锆石和氧化铝粘合剂加入到含有氧化铝（Al 2 O 3）和碳化硅（SiC）的耐火混合物中。 无定形耐火水泥还包括选自氧化镁，尖晶石，氧化锆，氧化铬或氧化铪中的一种或多种混合物。 对于100.0重量份的整个无定形耐火水泥，氧化铝粘合剂的含量为0.5-4重量份的氧化铝。 在氧化铝水泥中，氧化钙（CaO）的量为10〜30重量％。 在整个无定形耐火水泥中，氧化铝水泥的添加量为0.5-5重量％。 在整个无定形耐火水泥中，锆石的添加量为1-5重量％。

    석탄슬래그 침식에 강한 스피넬/탄화규소 내화물 조성물 및 이의 제조방법
    4.
    发明公开
    석탄슬래그 침식에 강한 스피넬/탄화규소 내화물 조성물 및 이의 제조방법 有权
    具有高耐腐蚀性的金刚石碳化硅耐火材料组合物及其制造方法

    公开(公告)号：KR1020130021284A

    公开(公告)日：2013-03-05

    申请号：KR1020110083705

    申请日：2011-08-22

    Applicant: 한국과학기술연구원

    Inventor： 김창삼 ,  박상환 ,  전성운 ,  이학만

    IPC: C04B35/565 ,  C04B35/567 ,  C04B35/10 ,  C04B35/657

    CPC classification number: C04B35/443 ,  C04B35/565 ,  C04B35/6303 ,  C04B35/66 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3222 ,  C04B2235/3826 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/77 ,  C04B2235/95 ,  C04B2235/96 ,  C04B2235/9692

    Abstract: PURPOSE: A refractory composition of spinel/silicon carbide which strongly controls erosion of coal slag is provided to manufacture a non-chromium refractory composition with excellent corrosion resistance and resistance to the penetration of coal slag including alumina redundancy spinel, silicon carbide, and α-alumina and γ-alumina. CONSTITUTION: A refractory composition comprises spinel/silicon carbide with a ratio of 25:75-75:25 weight%. The refractory composition comprises 1-15 parts by weight of differential alpha alumina and 1-15 parts by weight of gamma alumina based on 100 parts by weight of spinel/silicon carbide. A manufacturing method of a refractory composition comprises the following steps: (i) adding differential alpha alumina and differential gamma alumina into the spinel-silicon carbide refractory composition; (ii) molding the mixture withwater into a specific form or coating the same with a material with decreased heat resistance; (iii) removing moisture from the molded product or coated molded product; (iv) changing a phase from gamma alumina to alpha alumina by heat-treating the mixture; And (v) combining the alpha alumina which phase changed from gamma alumina with the spinel-silicon carbide refractory composition.

    Abstract translation: 目的：提供强力控制煤渣侵蚀的尖晶石/碳化硅耐火组合物，以制造具有优良耐腐蚀性和耐煤渗透性的耐铬耐火材料组合物，包括氧化铝冗余尖晶石，碳化硅和α- 氧化铝和γ-氧化铝。 构成：耐火材料组合物包含比例为25:75-75:75:25重量％的尖晶石/碳化硅。 基于100重量份的尖晶石/碳化硅，耐火材料组合物包含1-15重量份的差示α氧化铝和1-15重量份的γ氧化铝。 耐火材料组合物的制造方法包括以下步骤：（i）将不均匀的α氧化铝和差示γ氧化铝加入到尖晶石 - 碳化硅耐火组合物中; （ii）将混合物用水模制成特定形式或用耐热性降低的材料涂覆; （iii）从模制产品或涂覆的模制产品中除去水分; （iv）通过热处理混合物将相从γ氧化铝改变为α氧化铝; 和（v）将从γ氧化铝相变的α氧化铝与尖晶石 - 碳化硅耐火组合物组合。

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