公开(公告)号：US10464128B2

公开(公告)日：2019-11-05

申请号：US15527473

申请日：2015-11-17

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Toshihiro Imahase ,  Junichi Funato

IPC: B22D41/38 ,  B22D41/34

Abstract: A coupling position switching mechanism capable of improving efficiency of a coupling position switching operation, while realizing structural simplification, and reductions in size and cost. A first coupling portion consisting of one of a slide metal frame-side coupling portion and a drive unit-side coupling portion is formed with a groove-shaped recess and a through-hole in this order from the side of a distal end of the first coupling portion, and a second coupling portion consisting of the remaining one of the slide metal frame-side coupling portion and the drive unit-side coupling portion is formed with the through-hole. The first and second coupling portions are configured such that, during a casting operation, they are coupled together by a coupling pin inserted into the through-hole of the first coupling portion and the through-hole of the second coupling portion, and during surface pressure-applying/releasing operation, they are coupled together by a second coupling pin inserted into the groove-shaped recess of the first coupling portion and the through-hole of the second coupling portion.

公开(公告)号：US09718734B2

公开(公告)日：2017-08-01

申请号：US15110141

申请日：2014-11-07

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kazuhiro Honda ,  Taijirou Matsui

IPC: C04B35/14 ,  C23C4/06 ,  C01B33/02 ,  C23C4/067 ,  C04B35/622

CPC classification number: C04B35/14 ,  C01B33/02 ,  C04B35/62222 ,  C04B2235/3418 ,  C04B2235/428 ,  C23C4/067

Abstract: Disclosed is a technique for suppressing a firing property and a dust generating property while improving bondability, in a thermal spray material for use in a thermite spraying process. The thermal spray material comprises a refractory material powder and a metal Si powder and capable of being sprayed onto a target surface using oxygen or oxygen-containing gas as a carrier gas and melt-adhered to the target surface based on heat generated by combustion of the metal Si powder, wherein the metal Si powder is contained in an amount of 10 to 25 mass % with respect to the entire thermal spray material, and wherein the metal Si powder has a median size of 10 μm or less, and contains a fraction having a particle size of 2 μm or less in an amount of 8 mass % or less with respect to the entire metal Si powder.

公开(公告)号：US09522846B2

公开(公告)日：2016-12-20

申请号：US14763905

申请日：2014-01-29

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Michiharu Shiohama ,  Masato Tanaka ,  Yoshinori Matsuo ,  Jouki Yoshitomi

IPC: C04B35/52 ,  C04B35/043

CPC classification number: C04B35/0435 ,  C04B2235/3205 ,  C04B2235/3821 ,  C04B2235/402 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/652 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/9692

Abstract: In the present invention, the attempt was made to increase the denseness (to lower the porosity) of a magnesia carbon brick furthermore thereby providing the magnesia carbon brick having a high durability never found in the past. The magnesia carbon brick of the present invention comprises a magnesia raw material and a graphite, wherein the magnesia carbon brick contains the graphite with the amount thereof in the range of 8% or more by mass and 25% or less by mass and the magnesia raw material with the amount thereof in the range of 75% or more by mass and 92% or less by mass, the both amounts being relative to the total amount of the magnesia raw material and the graphite; as a grain size distribution of the magnesia raw material, the magnesia raw material having particle diameter of in the range of 0.075 mm or more and 1 mm or less is blended with the amount thereof being 35% or more by mass relative to the total amount of the magnesia raw material and the graphite, and a mass ratio of the magnesia raw material having the particle diameter of in the range of 0.075 mm or more and 1 mm or less to the magnesia raw material having the particle diameter of less than 0.075 mm is 4.2 or more; and an apparent porosity thereof after firing in reducing atmosphere for 3 hours at 1400° C. is 7.8% or less.

Abstract translation: 在本发明中，尝试增加氧化镁碳砖的致密度（降低孔隙率），从而提供过去没有发现的高耐久性的氧化镁碳砖。 本发明的氧化镁碳砖包括氧化镁原料和石墨，其中，氧化镁碳砖含有其量为8质量％以上且25质量％以下的石墨，氧化镁原料 其量为75质量％以上且92质量％以下的材料，两者的量相对于氧化镁原料和石墨的总量; 作为氧化镁原料的粒度分布，将粒径为0.075mm以上且1mm以下的氧化镁原料配合成相对于总量的35质量％以上的量 的氧化镁原料和石墨，并且具有粒径在0.075mm以上至1mm以下的氧化镁原料与粒径小于0.075mm的氧化镁原料的质量比 是4.2以上; 在1400℃下还原气氛烧成3小时后的表观孔隙率为7.8％以下。

公开(公告)号：US20160361758A1

公开(公告)日：2016-12-15

申请号：US15121462

申请日：2015-02-25

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Taro MAKINO ,  Kazuo ITO ,  Keiichiro AKAMINE

IPC: B22C9/06 ,  B22C1/12 ,  B22C9/18 ,  B22C1/22

CPC classification number: B22C9/061 ,  B22C1/12 ,  B22C1/22 ,  B22C9/18 ,  B22D11/10 ,  B22D41/32 ,  C04B35/043 ,  C04B35/103 ,  C04B35/14 ,  C04B35/46 ,  C04B35/48 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/402 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/77

Abstract: In order to suppress destruction of a refractory which contains a metal aluminum, the refractory is a refractory for steel casting which includes a refractory material containing a free carbon in the range of 1 to 10% by mass, both inclusive, a metal aluminum in the range of 1 to 15% by mass, both inclusive, and a metal oxide in a balance. The refractory for steel casting satisfies the following Equation 1: 0.31×Al≦(P−4)/D (Equation 1), with a metal aluminum content in the refractory designated by Al % by mass, an apparent porosity thereof designated by P %, and a bulk density thereof designated by D.

Abstract translation: 为了抑制含有金属铝的耐火材料的破坏，耐火材料是钢铸件的耐火材料，其包含含有1〜10质量％的游离碳的耐火材料，包括端值在内的金属铝 范围为1〜15质量％，余量为金属氧化物。 铸造用耐火材料满足下式1：0.31×Al≤（P-4）/ D（式1），耐火材料中的金属铝含量为Al质量％，表观孔隙率为P％ ，其密度由D指定。

公开(公告)号：US20160045956A1

公开(公告)日：2016-02-18

申请号：US14780041

申请日：2014-03-25

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Junici FUNATO ,  Nobuyuki YOKOI ,  Toshihiro IMAHASE

IPC: B22D41/32 ,  F27D3/14 ,  B22D41/22

CPC classification number: B22D41/32 ,  B22D41/22 ,  B22D41/24 ,  B22D41/28 ,  F27D3/14

Abstract: A sliding nozzle device that can reduce any damage such as surface roughness and chipping in a nozzle hole surroundings of a used plate. The sliding nozzle device includes a fixed metal frame, a sliding metal frame, and an opening and closing metal frame that holds the sliding metal frame in a slidable manner, and in the sliding nozzle device in which sliding contact surfaces of the sliding members provided on the sliding metal frame and the opening and closing metal frame come in slidable contact with each other, the sliding contact surfaces of the sliding member of the sliding metal frame are provided away from each other by a predetermined length front and rear in the sliding direction and a part between the front and rear sliding contact surfaces serves as a depressed part, and the sliding contact surfaces of the sliding member of the opening and closing metal frame are provided away from each other by a predetermined length front and rear in the sliding direction and a part between the front and rear sliding contact surfaces serves as a depressed part.

Abstract translation: 一种滑动喷嘴装置，其可以减少用过的板的喷嘴孔周围的任何损坏，例如表面粗糙度和碎屑。 滑动喷嘴装置包括固定金属框架，滑动金属框架以及可滑动地保持滑动金属框架的开闭金属框架，并且在滑动喷嘴装置中，滑动构件的滑动接触表面设置在 滑动金属框架和开关金属框架彼此滑动接触，滑动金属框架的滑动构件的滑动接触表面沿滑动方向彼此前后预定长度地设置， 前后滑动接触表面之间的部分用作凹陷部分，并且开闭金属框架的滑动构件的滑动接触表面沿滑动方向彼此远离预定长度的前后， 前滑动接触表面和后滑动接触表面之间的部分用作凹陷部分。

公开(公告)号：US20150353426A1

公开(公告)日：2015-12-10

申请号：US14760551

申请日：2014-01-15

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Masato TANAKA ,  Michiharu SHIOHAMA ,  Yoshinori MATSUO ,  Jouki YOSHITOMI

IPC: C04B35/043

CPC classification number: C04B35/043 ,  C04B35/013 ,  C04B35/0435 ,  C04B2235/3206 ,  C04B2235/3821 ,  C04B2235/402 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/652 ,  C04B2235/77

Abstract: A magnesia carbon brick with increased denseness (lowering the porosity) and high durability relative to conventional magnesia carbon bricks. The magnesia carbon brick includes a magnesia raw material and a graphite, with the magnesia carbon brick containing the graphite with amount of in the range of 3% or more by mass and 25% or less by mass and the magnesia raw material with amount of in the range of 75% or more by mass and 97% or less by mass, the both amounts being relative to total amount of the magnesia raw material and the graphite; and an apparent porosity thereof after reductive firing for 3 hours at 1400° C. is 7.8% or less.

Abstract translation: 具有增加的密度（降低孔隙率）和相对于常规氧化镁碳砖的高耐久性的氧化镁碳砖。 氧化镁碳砖包括氧化镁原料和石墨，含有石墨的氧化镁砖的量为3质量％以上且25质量％以下，氧化镁原料的量为 75％以上，97质量％以下的范围，相对于氧化镁原料和石墨的总量， 在1400℃还原烧成3小时后的表观孔隙率为7.8％以下。

公开(公告)号：US20140371051A1

公开(公告)日：2014-12-18

申请号：US14361953

申请日：2012-10-04

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Shunsuke Inadomi ,  Kazuhiro Honda ,  Aya Kusunoki ,  Kazuaki Haraguchi

IPC: C04B35/14

CPC classification number: C04B35/14 ,  C04B28/24 ,  C04B28/34 ,  C04B35/66 ,  C04B2111/00155 ,  C04B2111/28 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3418 ,  C04B2235/402 ,  C04B2235/405 ,  C04B2235/428 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/96 ,  F27D1/0006 ,  F27D1/10 ,  F27D1/1636 ,  C04B14/06 ,  C04B14/303 ,  C04B14/304 ,  C04B14/324 ,  C04B20/008

Abstract: The present invention addresses a technical problem of realizing a sprayable refractory material capable of, even when used in a dry-spraying installation process, ensuring mixability between a silica sol and a refractory composition to promote a hardening reaction, thereby achieving excellent durability. Provided is a dry-sprayable unshaped refractory material which comprises a refractory composition, and a silica sol containing a silica solid component in a concentration of 20 mass % to 50 mass %. The silica sol is added in such a manner that the silica solid component contained in an entirety of the silica sol reaches an amount of 3 mass % to 30 mass % with respect to and in addition to an entirety of the refractory composition assumed as 100 mass %, and the refractory composition contains a Mg- or Ca-containing compound having a particle size of 10 μm or less, wherein a ratio of a content of the Mg- or Ca-containing compound having a particle size of 10 μm or less in the refractory composition to a content of the silica solid component in the entirety of the silica sol is 0.02 or more.

Abstract translation: 本发明涉及实现可喷涂耐火材料的技术问题，即使在干喷涂安装工艺中使用时，也可确保二氧化硅溶胶和耐火材料组合物之间的混合性，从而促进硬化反应，从而获得优异的耐久性。 本发明提供一种含有耐火材料组合物的干式喷涂不定形耐火材料，含有浓度为20质量％〜50质量％的二氧化硅固体成分的二氧化硅溶胶。 添加二氧化硅溶胶使得全部二氧化硅溶胶中含有的二氧化硅固体成分相对于假定为100质量％的耐火材料组合物的总量为3质量％〜30质量％ ％，耐火材料组合物含有粒径为10μm以下的含Mg或Ca的化合物，其中，粒径为10μm以下的含Mg或Ca的化合物的含量比例 整个二氧化硅溶胶中的二氧化硅固体成分含量的耐火组合物为0.02以上。

公开(公告)号：USD698376S1

公开(公告)日：2014-01-28

申请号：US29433320

申请日：2012-09-28

Applicant: Krosakiharima Corporation

Designer： Junichi Funato ,  Shunji Sadano ,  Shinjiro Saito

公开(公告)号：US20240116102A1

公开(公告)日：2024-04-11

申请号：US18275844

申请日：2022-01-28

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Toshihiro IMAHASE ,  Mamoru YOSHIMURA ,  Yusuke YAMAGUCHI ,  Yudai ONOUE

IPC: B22D41/34

CPC classification number: B22D41/34

Abstract: A sliding nozzle device capable of allowing a maintenance robot to reliably and accurately recognize the position thereof. The sliding nozzle device includes: a fixed metal frame; and a sliding metal frame slidably provided to the fixed metal frame. The fixed metal frame is provided with a mark block for allowing a maintenance robot to recognize the position thereof. More specifically, the mark block is provided to protrude from a side surface or bottom surface of the fixed metal frame toward the sliding metal frame, at a position free from interference with the sliding metal frame during sliding.

公开(公告)号：US20230028785A1

公开(公告)日：2023-01-26

申请号：US17780392

申请日：2020-12-08

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kouhei TAKAMI ,  Katsumi MORIKAWA ,  Shigefumi MATSUMOTO

IPC: B22D41/54 ,  C04B35/106 ,  C04B38/00

Abstract: Provided is a refractory product which is not impregnated with pitch or the like, wherein it has higher corrosion-erosion resistance and thermal shock resistance as compared to a refractory product subjected to pitch or the like-impregnation treatment. The refractory product which is not impregnated with tar or pitch is characterized in that, in terms of values of physical properties of a sample of the refractory product as measured after heat-treating the sample in a non-oxidizing atmosphere at 1200° C.: an apparent porosity is 7% or less; a total void volume of pores having a pore diameter of 1 μm or less is 80% or more of an integrated void volume of pores of the entire sample of the refractory product; and a gas permeability is 50×10−17 m2 or less.