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：US20170088469A1

公开(公告)日：2017-03-30

申请号：US15128265

申请日：2015-02-12

Applicant: Krosakiharima Corporation

Inventor： Keiichiro AKAMINE ,  Kazuo ITO ,  Taro MAKINO

IPC: C04B35/103 ,  B22D41/54 ,  C04B35/645 ,  C04B35/56 ,  C04B35/632 ,  B22D41/32 ,  F27D3/14

CPC classification number: C04B35/103 ,  B22D41/32 ,  B22D41/54 ,  C04B35/013 ,  C04B35/101 ,  C04B35/106 ,  C04B35/56 ,  C04B35/5603 ,  C04B35/62665 ,  C04B35/632 ,  C04B35/645 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/3817 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/386 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/402 ,  C04B2235/422 ,  C04B2235/428 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/602 ,  C04B2235/721 ,  F27D1/0006 ,  F27D3/14

Abstract: A refractory to be used repeatedly or for a long period of time, such as a refractory for casting, especially a nozzle for casting and an SN plate, has improved tolerance. The refractory for casting contains Al4O4C in the range of 15 to 60% by mass, both inclusive, an Al component as a metal in the range of 1.2 to 10.0% by mass, both inclusive, and a balance including Al2O3, a free C, and other refractory component; a sum of Al4O4C, Al2O3, and the Al component as a metal is 85% or more by mass; and a content of Al4O4C (Al4O4C), a content of the Al component as a metal (Al), and a content of the free carbon (C). The contact of the free carbon satisfies the following Equation 1 and Equation 2: 1.0≦C/(Al4O4C×0.038+Al×0.33)  (Equation 1) and 1.0≧C/(Al4O4C×0.13+Al×0.67)  (Equation 2).