公开(公告)号：US20170305795A1

公开(公告)日：2017-10-26

申请号：US15511473

申请日：2015-06-29

Applicant: Refractory Intellectual Property GmbH & Co. KG

Inventor： Clemens Ebner ,  Bernd Neubauer ,  Andreas Rief ,  Alexander Maranitsch ,  Bernd Trummer

IPC: C04B35/107 ,  C04B35/05 ,  C04B35/64 ,  C04B35/63 ,  C04B35/634

CPC classification number: C04B35/107 ,  C04B35/043 ,  C04B35/05 ,  C04B35/103 ,  C04B35/6303 ,  C04B35/634 ,  C04B35/64 ,  C04B35/66 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/425 ,  C04B2235/48 ,  C04B2235/602 ,  C04B2235/77

Abstract: The invention concerns a batch for the production of a refractory magnesia-carbon product or a refractory alumina-magnesia-carbon product, a process for the production of a refractory magnesia-carbon product or a refractory alumina-magnesia-carbon product, a refractory magnesia-carbon product or a refractory alumina-magnesia-carbon product as well as the use of a magnesia-carbon product or a refractory alumina-magnesia-carbon product.

公开(公告)号：US4107255A

公开(公告)日：1978-08-15

申请号：US820534

申请日：1977-08-01

Applicant: Thomas A. Clishem ,  Frederick D. Olympia ,  Leonard W. Pokallus

Inventor： Thomas A. Clishem ,  Frederick D. Olympia ,  Leonard W. Pokallus

IPC: C04B35/05 ,  C04B35/657 ,  C04B35/60

CPC classification number: C04B35/657 ,  C04B35/05 ,  C04B35/051

Abstract: Basic fused cast refractory with principal crystal phases of periclase and magnesium-spinel is made by adding nonfused oxidic inorganic grog particles to molten mass of the refractory as it is cast into a mold cavity, thereby resulting in increased modulus of rupture at temperature in the range of about 1340.degree.-1500.degree. C. and avoidance of shell formation. Molten mass has a composition consisting essentially (by weight) of 45-78% MgO, 0-30% Cr.sub.2 O.sub.3, 0-35% Al.sub.2 O.sub.3, 0-17% FeO + Fe.sub.2 O.sub.3, at least 82% MgO + Cr.sub.2 O.sub.3 + Al.sub.2 O.sub.3 + FeO + Fe.sub.2 O.sub.3, 1-8% SiO.sub.2, 0-2% CaO + BaO + SrO.sub.2, 0-10% TiO.sub.2 and 0-3% fluorine. Nonfused particles have a loss on ignition at 1000.degree. C. of less than about 0.5% by weight and an aggregate SiO.sub.2 content at least about equal to the SiO.sub.2 content of the molten mass forming the cast refractory. Grog particles are of a size (e.g., within the range of particles passing about 25 mm. sieve openings and retained by about 0.5 mm sieve openings) and in an amount (e.g., about 2.5 to 70% by weight of the cast refractory) sufficient to effect at least partial melting of and penetration into the particles by and resolidification with the cast molten mass so as to form a continuous coherent crystal structure throughout the solidified cast mass wherein discrete grog particles and remnants thereof (if any exist) are not optically identifiable.

Abstract translation: 具有主要结晶相的镁基尖晶石和镁尖晶石的基本熔融铸造耐火材料是通过将不熔融的氧化无机砂粒添加到熔模中的熔融物质中而制成的，因为它被浇铸到模具腔中，从而导致在温度范围内的断裂模量增加 约1340°-1500℃，避免壳形成。 熔融物质的组成主要由45-78％MgO，0-30％Cr2O3，0-35％Al2O3,0-17％FeO + Fe2O3，至少82％MgO + Cr2O3 + Al2O3 + FeO +（重量）组成， Fe2O3，1-8％SiO2，0-2％CaO + BaO + SrO2，0-10％TiO2和0-3％氟。 未熔融的颗粒在1000℃下的点燃损失小于约0.5重量％，并且聚集的SiO 2含量至少等于形成耐火材料的熔融体的SiO 2含量。 粗粒颗粒的尺寸（例如，在通过约25mm的筛孔的范围内，筛孔并保留约0.5mm的筛孔）和一定量（例如，约2.5至70重量％的浇注耐火材料）足够 通过铸造熔融物质进行至少部分熔融和渗透到颗粒中并使其固化，从而在整个固化的铸造物质中形成连续的粘结晶体结构，其中离散的砂粒和残余物（如果存在）不是可光学识别的 。

公开(公告)号：US11299433B2

公开(公告)日：2022-04-12

申请号：US16768888

申请日：2016-12-16

Applicant: ZIBO CITY LUZHONG REFRACTORIES CO., LTD.

Inventor： Junhong Chen ,  Jisheng Feng ,  Yuanping Jia ,  Yanxia Wu ,  Bo Zhu ,  Yutao Guo

IPC: C04B37/00 ,  C04B35/043 ,  C04B35/05 ,  C04B35/20 ,  C04B35/443 ,  B28B3/00

Abstract: A manufacturing method of a low heat-conducting magnesium-aluminium spinel brick includes: (1) evenly mixing sintered magnesia, fused magnesia, magnesium-aluminium spinel and corundum to prepare flame retardant coating raw material mixed powder, adding naphthalene binder to the flame retardant coating raw material mixed powder to prepare the flame retardant coating raw materials after evenly mixing; (2) evenly mixing forsterite, fayalite and magnesia, adding the naphthalene binder to the mixed powder, moulding, drying, and then burning to obtain aggregate composite hortonolite raw materials; adding the naphthalene binder to the aggregate composite hortonolite having granularity ≤5 mm to prepare the thermal insulating layer raw materials after evenly mixing; (3) spacing and loading the flame retardant coating raw materials and the thermal insulating layer raw materials in a mold, pressing into green bricks, keeping the green bricks at a temperature of 110° C. for 24 hours, drying, and burning into magnesium-aluminium spinel bricks.

公开(公告)号：US07780504B2

公开(公告)日：2010-08-24

申请号：US12004505

申请日：2007-12-21

Applicant: Shoji Sakaguchi ,  Hiroyuki Nakamura ,  Hideki Matsuo

Inventor： Shoji Sakaguchi ,  Hiroyuki Nakamura ,  Hideki Matsuo

IPC: C04B35/05 ,  B24B7/00 ,  G11B5/706

CPC classification number: B24B37/04 ,  B24B19/028 ,  B24B21/04 ,  G11B5/8404

Abstract: A method for manufacturing a magnetic recording medium disk substrate is provided for achieving a magnetic disk having a suitable surface roughness, a high in-plane magnetic anisotropy and a high S/N. The manufacturing method has a texturing process wherein the magnetic recording medium disk substrate is rotated in the circumferential direction while a polishing tape is pressed against the rotating substrate. The polishing tape includes polyester fiber having a fiber diameter of 400 nm to 950 nm, on the surface coming into contact with the substrate. All the while, slurry including abrasive grains including a cluster diamond is supplied to the surfaces of the substrate. The present invention relates to a magnetic recording medium disk substrate produced by the manufacturing method; and a magnetic recording medium at least comprising a magnetic layer on the magnetic recording medium disk substrate and manufacturing method of the magnetic recording medium.

Abstract translation: 提供一种用于制造磁记录介质盘基片的方法，用于实现具有合适表面粗糙度，高平面内各向异性和高S / N的磁盘。 该制造方法具有纹理化处理，其中磁性记录介质盘基片沿着圆周方向旋转，同时将研磨带压靠在旋转基片上。 抛光带包括在与基底接触的表面上具有400nm至950nm的纤维直径的聚酯纤维。 一直以来，包括含有金刚石的磨粒的浆料被提供到基材的表面。 本发明涉及通过该制造方法制造的磁记录介质盘基片; 以及至少包括在磁记录介质盘基片上的磁性层的磁记录介质和磁记录介质的制造方法。

公开(公告)号：US20050176575A1

公开(公告)日：2005-08-11

申请号：US11105124

申请日：2005-04-13

Applicant: Luna Chiu ,  Xubai Zhang ,  Louise Sengupta

Inventor： Luna Chiu ,  Xubai Zhang ,  Louise Sengupta

IPC: C04B35/05 ,  C04B35/053 ,  C04B35/16 ,  C04B35/20 ,  C04B35/46 ,  C04B35/462 ,  C04B35/465 ,  C04B35/468 ,  C04B35/47 ,  C04B35/48 ,  C04B35/49 ,  C04B35/495 ,  C04B41/50 ,  C04B41/87 ,  H01G4/12 ,  H01G7/06 ,  H01P1/18 ,  H01Q3/44

CPC classification number: H01G4/1227 ,  B32B2311/04 ,  C04B35/04 ,  C04B35/053 ,  C04B35/16 ,  C04B35/20 ,  C04B35/22 ,  C04B35/443 ,  C04B35/462 ,  C04B35/465 ,  C04B35/468 ,  C04B35/47 ,  C04B35/495 ,  C04B35/6261 ,  C04B35/62625 ,  C04B35/63 ,  C04B35/632 ,  C04B35/634 ,  C04B41/5041 ,  C04B41/87 ,  C04B2235/3201 ,  C04B2235/3205 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3236 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3418 ,  C04B2235/3445 ,  C04B2235/3454 ,  C04B2235/6025 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2237/34 ,  C04B2237/343 ,  C04B2237/346 ,  C04B2237/348 ,  C04B2237/408 ,  H01G4/1209 ,  H01G7/06 ,  H01P1/181 ,  H01Q3/44 ,  Y10T428/264 ,  Y10T428/265 ,  Y10T428/2973

Abstract: The production of low-loss, tunable composite ceramic materials with improved breakdown strengths is disclosed. The composite materials comprise ferroelectric perovskites such as barium strontium titanate or other ferroelectric perovskites combined with other phases such as low-loss silicate materials and/or other low-loss oxides. The composite materials are produced in sheet or tape form by methods such as tape casting. The composite tapes exhibit favorable tunability, low loss and tailorable dielectric properties, and can be used in various microwave devices.

Abstract translation: 公开了具有改进的击穿强度的低损耗可调谐复合陶瓷材料的生产。 复合材料包括铁电钙钛矿，例如钛酸锶钡或其它相，如低损耗硅酸盐材料和/或其它低损耗氧化物的其他铁电钙钛矿。 复合材料通过诸如胶带浇铸的方法以片材或带状形式制备。 复合胶带表现出良好的可调性，低损耗和可定制的介电性能，可用于各种微波装置。

公开(公告)号：US09593048B2

公开(公告)日：2017-03-14

申请号：US14653988

申请日：2013-12-19

Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN

Inventor： Eric Jorge ,  Olivier Francy

IPC: C04B35/109 ,  F27D5/00 ,  C25C7/00 ,  C04B35/05

CPC classification number: C04B35/109 ,  C04B35/05 ,  C04B2235/3206 ,  C04B2235/3244 ,  C25C7/005 ,  F27D5/0031 ,  Y02P10/262

Abstract: The invention relates to a melted and cast refractory product having a chemical composition such that, in mass percentages on the basis of the oxides: AI2O3: complement up to 100%; MgO: 26% to 50%; ZrO2: 0.5% to 10.0%; B2O3:

Abstract translation: 本发明涉及一种熔融和铸造的耐火产品，其具有以氧化物为基准的质量百分比：Al 2 O 3：互补高达100％的化学组成; MgO：26〜50％ ZrO 2：0.5〜10.0％ B2O3：<1.5％; SiO 2：≤0.5％ Na2O + K2O：≤0.3％ CaO：≤1.0％ Fe2O3 + TiO2：<0.55％; 其他氧化物种类：<1.0％。 在所述产物中，锆含量与总硼，氟和硅含量的基本质量比R为2-80。

公开(公告)号：US4657878A

公开(公告)日：1987-04-14

申请号：US699911

申请日：1985-02-08

Applicant: Thomas A. Clishem ,  Leonard W. Pokallus

Inventor： Thomas A. Clishem ,  Leonard W. Pokallus

IPC: C04B35/05 ,  C04B35/657 ,  C04B35/04

CPC classification number: C04B35/657 ,  C04B35/051

Abstract: A novel method of making a refractory material is disclosed comprising the steps of providing an electrical arc metal furnace, charging that furnace with a charge of refractory oxide, and selecting voltage, amperage and electrode spacings to create novel "hum and scum" melt conditions. This hum and scum condition is maintained until said charge is substantially melted. The described technique is particularly useful for melting magnesia chrome materials to produce fusion cast refractory products which are highly reduced and quite dense. The elaboration of this product requires higher energy input per pound concurrent with an increased consumption of reducing materials compared with standard preparation conditions. The resulting product exhibits higher oxidation weight gains, higher densities, lower porosities, high cold crush strengths, more thermal shock resistance, and better corrosion-erosion resistance than similar magnesia chrome refractory products fused using prior "arc and bark" processes.

Abstract translation: 公开了一种制备耐火材料的新方法，其包括以下步骤：提供电弧金属炉，将炉子加入难熔氧化物的电荷，以及选择电压，电流和电极间距以产生新的“嗡嗡声和浮渣”熔融条件。 保持这种嗡嗡声和浮渣状态，直到充电基本上熔化为止。 所描述的技术对于熔化氧化镁铬材料以产生高度还原和相当密集的熔铸耐火产品特别有用。 与标准制备条件相比，该产品的精心设计需要每磅更高的能量输入，同时减少材料的消耗增加。 与使用先前的“电弧和树皮”工艺融合的类似的氧化镁耐火产品相比，所得产品具有更高的氧化重量增加，更高的密度，更低的孔隙率，更高的抗压强度，更高的耐热冲击性和更好的耐腐蚀腐蚀性。

公开(公告)号：US4348485A

公开(公告)日：1982-09-07

申请号：US241101

申请日：1981-03-06

Applicant: Koji Oohasi ,  Yutaka Hosoda ,  Toshio Kitamura ,  Eiichi Kudo

Inventor： Koji Oohasi ,  Yutaka Hosoda ,  Toshio Kitamura ,  Eiichi Kudo

IPC: C04B35/05 ,  C04B35/657 ,  C04B35/04 ,  C04B35/42 ,  C04B35/44

CPC classification number: C04B35/657 ,  C04B35/051

Abstract: A spinel type dense fused refractory product having excellent corrosion resistance comprises a crystalline structure consisting essentially of more than 50% by weight of composite spinel phase comprising RO component selected from MgO and FeO and R'.sub.2 O.sub.3 component selected from Cr.sub.2 O.sub.3, Al.sub.2 O.sub.3 and Fe.sub.2 O.sub.3 and periclase phase and a small content of glass matrix phase which consists essentially of the following constituents, analytically on a weight basis; a ratio of Cr.sub.2 O.sub.3 to Al.sub.2 O.sub.3 of 3.5 to 5.5; and 20% to 40% of MgO; 1.5% or less of CaO; 15% or less of Fe.sub.2 O.sub.3 (FeO is also calculated for Fe.sub.2 O.sub.3) and 5% or less of SiO.sub.2.

Abstract translation: 具有优异耐腐蚀性的尖晶石型致密熔融耐火产品包括基本上由超过50重量％的包含选自MgO和FeO的RO组分和R 2 O 3组分选自Cr 2 O 3，Al 2 O 3和Fe 2 O 3的复合尖晶石相和基质 相和少量玻璃基质相，其基本上由以下成分组成，以重量为基础分析; Cr2O3与Al2O3的比例为3.5〜5.5; 和20〜40％的MgO; 1.5％以下的CaO; 15％以下的Fe 2 O 3（Fe 2 O 3计算FeO）和5％以下的SiO 2。

公开(公告)号：US3763302A

公开(公告)日：1973-10-02

申请号：US3763302D

申请日：1970-10-09

Applicant: ELECTRO REFRACTAIRE

Inventor： DUCHENOY J ,  GASPARINI G ,  MARTY Y

IPC: B28B1/54 ,  C04B35/05 ,  C04B35/657 ,  C04B38/02 ,  C04B35/04 ,  C04B35/12 ,  C04B35/62

CPC classification number: B28B1/54 ,  C04B35/051 ,  C04B35/657 ,  C04B38/02

Abstract: A CHARGE OF MOLTEN REFRACTORY OXIDES, SUCH AS MIXTURES OF MAGNESIA AND CHROMIUM OXIDE, CONTAINING A GAS LIBERATING INGREDIENT ARE POURED INTO A LIQUID COOLED MOLD VIA A SWIRLING CASTING JET IN A FUNNEL WHERE SMALL FRAGMENTS OF FUSED CAST SCRAP OF LIKE COMPOSITION ARE ADDED

AND HOMOGENEOUSLY MIXED WITH THE MELT. THE SOLID FRAGMENTS, THE GAS LIBERATING INGREDIENT AND THE LIQUID COOLED METAL MOLD COOPERATE TO CAUSE A SOLIDIFIED SHELL TO FORM NEXT TO THE MOLD SURFACE OF SUCH A THICKNESS THAT THE PART CAN BE REMOVED FROM THE MOLD WITHIN A FEW MINUTES AFTER CASTING AND THEREAFTER COOLED OUTSIDE THE MOLD AT A CONVENTIONAL RATE WITHOUT CRACKING OR DISTORTION OF SHAPE.

公开(公告)号：US10815155B2

公开(公告)日：2020-10-27

申请号：US16124913

申请日：2018-09-07

Applicant: AGC CERAMICS CO., LTD.

Inventor： Kenji Matano ,  Nobuo Tomura

IPC: C04B35/484 ,  C03B5/43 ,  C04B35/05 ,  C04B35/48 ,  F27D1/00 ,  C04B35/66 ,  C04B35/657

Abstract: To provide a high-zirconia electrocast refractory in which occurrence of cracks in manufacture and occurrence of cracks in use as a furnace material is further reduced while maintaining extremely high corrosion resistance to molten glass. The high-zirconia electrocast refractory contains 96.7 to 98.5 mass % of ZrO2, 0.8 to 2.7 mass % of SiO2, 0 to 0.2 mass % of Na2O, 0.21 to 1 mass % of K2O, 0.1 to 0.4 mass % of Al2O3, and does not substantially contain B2O3, in terms of oxide, as a chemical composition, wherein contents of the Na2O and the K2O satisfy a relation of following Formula (1) 0.15 mass %≤CK2O/2+CNa2O≤0.6 mass %  (1) where CK2O is the content of K2O and CNa2O is the content of Na2O, and each of the contents is expressed by mass % in the refractory.