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公开(公告)号：KR1020150125351A
公开(公告)日：2015-11-09
申请号：KR1020140052588
申请日：2014-04-30
Applicant: 한국산업기술대학교산학협력단
Inventor： 정용석
IPC: C21C5/44 , C21C5/46 , B22D41/02 , B22D41/005
CPC classification number: C21C5/44 , B22D41/02 , C21C5/4646
Abstract: 본발명은용탕라인과슬래그라인의경계면에서발생하는침식을방지하는내화물구조체및 그적용방법에관한것으로, 상부에위치하며탄소를포함하는내화물로구성되는슬래그라인; 하부에위치하며탄소를포함하지않는내화물로구성되는용탕라인; 및상기슬래그라인과상기용탕라인의중간에형성되어 SiC 재질로구성되는경계면라인을포함한다. 본발명은, 슬래그와철계용탕의경계면이접하는부분에 SiC 재질의경계면라인을추가형성함으로써, 철계용탕과슬래그에의한침식을방지할수 있으며, 최종적으로전체내화물구조체의수명이길어지는효과가있다.
Abstract translation: 本发明涉及一种用于防止在钢水线和渣线的边界面产生的腐蚀的耐火结构及其施加方法，其包括：由含有碳的耐火材料构成的渣线， 上面的部分; 由不含碳的耐火材料构成并位于下部的钢水线; 以及通过在渣线和钢水线之间的中途形成由SiC材料构成的边界面线。 本发明能够通过在邻接铁基钢水和铁渣边界区域的区域附加形成与SiC材料的边界面线，从而防止铁基钢水和炉渣的腐蚀，最终提高耐火材料整体的耐久性 钢水和渣。
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公开(公告)号：KR1020130119782A
公开(公告)日：2013-11-01
申请号：KR1020120042846
申请日：2012-04-24
Applicant: 한국산업기술대학교산학협력단 , 재단법인 포항산업과학연구원
Abstract: The invention relates to a method for manufacturing an aluminum coated steel sheet, in which heat resistance is improved, comprising: a step for preparing a steel sheet; and a step for forming a plating layer on a surface of the steel sheet by using an aluminum target through a sputtering process. Moreover, an aluminum coated steel sheet according to the invention comprises: a steel sheet; and an aluminum based plating layer, which is plated on a surface of the steel sheet. The plating layer is plated through a sputtering method, and an inter-metal compound layer is not formed between the steel sheet and the plating layer. The present invention provides an aluminum coated steel sheet, in which a discoloration of a surface is generated at high temperatures, which is over 400, because diffusion of Fe through an inter-metal compound layer is prevented by plating an aluminum or an aluminum alloy to a sputtering method. [Reference numerals] (AA) Comparative example 1;(BB) Comparative example 2;(CC) Example 1;(DD) Example 2;(EE) Example 3
Abstract translation: 本发明涉及一种制造耐热性提高的镀铝钢板的方法，包括：制备钢板的步骤; 以及通过溅射法使用铝靶在钢板表面上形成镀层的工序。 此外，根据本发明的铝涂层钢板包括：钢板; 以及镀在钢板表面上的铝基镀层。 通过溅射法镀覆镀层，在钢板和镀层之间不形成金属间化合物层。 本发明提供一种铝涂层钢板，其中由于通过镀铝或铝合金来防止Fe通过金属间化合物层的扩散而在高温下产生超过400的表面变色， 溅射法。 （AA）比较例1;（BB）比较例2;（CC）实施例1;（DD）实施例2（EE）实施例3
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Patent Agency Ranking13.发明授权
公开(公告)号：KR101288958B1
公开(公告)日：2013-07-22
申请号：KR1020110147516
申请日：2011-12-30
Applicant: 한국산업기술대학교산학협력단
Inventor： 정용석
IPC: C04B35/657 , C04B41/87 , C04B35/03
Abstract: 본 발명은 내식성이 향상된 마그네시아계 내화제품의 제조방법에 관한 것으로, 마그네시아계 내화제품의 표면에 용사코팅공정으로 알루미나를 주된 물질로 포함하는 알루미나계 코팅층을 형성하는 것을 특징으로 한다.
또한, 본 발명에 의한 내식성이 향상된 마그네시아계 내화제품은, 마그네시아계 재질의 내화제품으로서, 그 표면에 알루미나를 주된 물질로 포함하는 알루미나계 코팅층이 도포되며, 상기 알루미나계 코팅층은 용사코팅공정으로 형성되어, 고온의 물체와 접촉할 때 상기 알루미나계 코팅층에 포함된 알루미나가 상기 마그네시아계 재질과 반응하여 MgO-Al
2 O
3 스피넬이 형성되는 것을 특징으로 한다.
본 발명은, 용사코팅공정에 의해 마그네시아계 내화제품의 표면에 알루미나를 주된 물질로 포함하는 알루미나계 코팅층을 형성함으로써, 단순히 알루미나계 코팅층을 형성하는 것에서는 예측할 수 없었던 스피넬상의 형성에 의한 내식성 향상의 효과를 얻을 수 있다.
또한, 높은 가격의 MgO-Al
2 O
3 스피넬을 사용하지 않고 알루미나를 용사코팅하기 때문에, 저렴한 비용으로 마그네시아계 내화제품의 내식성을 크게 높일 수 있는 효과가 있다.-
公开(公告)号：KR101956168B1
公开(公告)日：2019-03-08
申请号：KR1020180047287
申请日：2018-04-24
Applicant: 한국산업기술대학교산학협력단
Inventor： 정용석
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15.发明公开
公开(公告)号：KR1020130078521A
公开(公告)日：2013-07-10
申请号：KR1020110147516
申请日：2011-12-30
Applicant: 한국산업기술대학교산학협력단
Inventor： 정용석
IPC: C04B35/657 , C04B41/87 , C04B35/03
CPC classification number: C04B35/657 , C04B35/04 , C04B41/4523 , C04B41/88 , C04B2235/3206
Abstract: PURPOSE: A producing method of a magnesia based fire resistant product is provided to form an alumina based coating layer on the surface of the magnesia based fire resistant product using a thermal spray coating process for improving the corrosion resistance of the magnesia based fire resistant product by forming a spinel phase. CONSTITUTION: A producing method of a magnesia based fire resistant product comprises a step of forming an alumina based coating layer on the surface of the magnesia based fire resistant product using a thermal spray coating process. The thickness of the alumina based coating layer is thicker than 100 um. The thermal spray coating process is conducted by plasma thermal spraying at a temperature greater than 1,500°C. The producing method of the magnesia based fire resistant product additionally comprises a step of thermally processing the product at a temperature greater than 1,500°C after the formation of the alumina based coating layer. Magnesium oxide-aluminum oxide spinel is formed when the magnesia based fire resistant product with the alumina based coating layer contacts a high temperature object, by the reaction of alumina contained in the alumina based coating layer with a magnesia material.
Abstract translation: 目的：提供一种基于氧化镁的耐火产品的生产方法，以在氧化镁基耐火产品的表面上形成氧化铝基涂层，使用热喷涂方法，以提高氧化镁基耐火产品的耐腐蚀性 形成尖晶石相。 构成：氧化镁基耐火制品的制造方法包括使用热喷涂法在氧化镁基耐火制品的表面上形成氧化铝基涂层的工序。 氧化铝基涂层的厚度大于100um。 热喷涂工艺通过等离子体热喷涂在大于1500℃的温度下进行。 氧化镁基耐火制品的制造方法还包括在形成氧化铝基涂层之后，在大于1500℃的温度下热处理该产品的步骤。 当氧化铝基耐火材料与氧化铝基涂层接触高温物体时，通过氧化铝基涂层中所含的氧化铝与氧化镁材料的反应，形成氧化镁 - 氧化铝尖晶石。
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16.发明授权
公开(公告)号：KR101587014B1
公开(公告)日：2016-01-20
申请号：KR1020140005486
申请日：2014-01-16
Applicant: 한국산업기술대학교산학협력단
Inventor： 정용석
Abstract: 본발명은전기자동차의접속터미널용합금에관한것으로, 0.002~0.01wt%의 P와 0.2~1.0wt%의 Sn 및잔부의 Cu로구성되는것을특징으로한다. 또한본 발명의전기자동차의접속터미널제조방법은, 상기한합금재료를압출/인발하는단계; 압출/인발된재료에대하여절삭공정을수행하는단계; 절삭공정을수행한재료를가공하는단계; 및가공된재료의표면을은도금하는단계를포함한다. 본발명은전도율과경도가모두뛰어난전기자동차의접속터미널용합금을사용함으로써, 압출/인발가공공정을 1회로줄이고 Ni 도금공정과후 압연공정을생략하여제조비용을크게줄인전기자동차의접속터미널제조방법을제공하는효과가있다. 또한, 본발명의전기자동차의접속터미널은, 경도가높은전기자동차의접속터미널용합금을적용하여표면과내부의경도편차를크게줄임으로써, Ni도금층과내부전기동의경도편차차이에의해서종래의전기자동차의접속터미널에발생하던문제를해소하는효과가있다.
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公开(公告)号：KR101430098B1
公开(公告)日：2014-08-14
申请号：KR1020130021820
申请日：2013-02-28
Applicant: 한국산업기술대학교산학협력단
Inventor： 정용석
CPC classification number: G01N23/046 , G01N17/02 , G01N23/043 , G01N2223/303 , G01N2223/646
Abstract: The present invention relates to a refractory characteristic evaluating device which is a device for evaluating the characteristics of refractories. The refractory characteristic evaluating device comprises an X-ray tomography for photographing the cross sectional image of refractories, and an image revision unit for revising the cross sectional image. According to an aspect of the present invention, a refractory characteristic evaluating method is a method for evaluating the characteristics of refractories using the refractory characteristic evaluating device. The method comprises a step of photographing the cross sectional image of the refractories with the X-ray tomography; a step of revising the photographed cross sectional image; and a step of analyzing the revised cross sectional image. The present invention can evaluate the characteristics of the refractories by analyzing the cross section of the refractories without the limitation of a cut position since the cross sectional image is revised after photographing the cross sectional image of the refractories using the X-ray tomography without cutting the refractories. Also, the present invention can easily and quickly evaluate the characteristics of the refractories since a user can clearly identify components, blow holes, and cracks from the cross sectional image photographed by the X-ray tomography and revised.
Abstract translation: 耐火材料特性评价装置技术领域本发明涉及作为评价耐火材料特性的装置的耐火材料特性评价装置。 难熔特性评价装置包括用于拍摄耐火材料的横截面图像的X射线断层摄影装置和用于修正截面图像的图像修正单元。 根据本发明的一个方面，耐火材料特性评价方法是使用耐火材料特性评价装置评价耐火材料的特性的方法。 该方法包括用X射线层析成像技术拍摄耐火材料的截面图像的步骤; 修改拍摄的横截面图像的步骤; 以及分析修改后的横截面图像的步骤。 本发明可以通过分析耐火材料的横截面而不受切割位置的限制来评估耐火材料的特性，因为在使用X射线层析成像技术拍摄耐火材料的横截面图像之后修改截面图像而不切割 耐火材料。 此外，本发明可以容易且快速地评估耐火材料的特性，因为用户可以从通过X射线层析成像拍摄的横截面图像中清楚地识别部件，吹孔和裂纹并进行修改。
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