公开(公告)号：US20160326057A1

公开(公告)日：2016-11-10

申请号：US15110141

申请日：2014-11-07

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kazuhiro HONDA ,  Taijirou MATSUI

IPC: C04B35/14 ,  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.

Abstract translation: 公开了一种在热喷涂工艺中使用的热喷涂材料中，同时提高粘合性的同时抑制烧制性和粉尘产生性的技术。 热喷涂材料包括耐火材料粉末和金属Si粉末，并且能够使用氧气或含氧气体作为载气喷射到目标表面上，并且基于由燃烧产生的热而熔化粘附到目标表面 金属Si粉末，其中相对于整个热喷涂材料，金属Si粉末的含量为10〜25质量％，其中，金属Si粉末的中值粒径为10μm以下，并且含有具有 相对于整个金属Si粉末，粒径为2质量％以下的粒径为8质量％以下。

公开(公告)号：US20210017088A1

公开(公告)日：2021-01-21

申请号：US16979951

申请日：2019-03-06

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kazuhiro HONDA ,  Kazunori SEKI ,  Yoshitaka ISHII ,  Takafumi YAMADA ,  Norikazu SHIRAMA ,  Tsubasa NAKAMICHI

IPC: C04B35/66 ,  C04B35/622 ,  C04B35/626 ,  F27D1/00 ,  B05D1/02 ,  B05B7/24

Abstract: To improve the stability of spray application of a monolithic refractory in which a water injector is disposed in a material carrier pipe extending from a material supply device to a distal spray nozzle, and application water is injected from the water injector into a spray material that is being carried through the material carrier pipe, a ratio of a flow volume of an application water carrier gas for carrying the application water to be introduced into the water injector to a flow volume of a spray material carrier gas for carrying the spray material is set to 0.07 to 2, and a compressibility index of the spray material is set to 32% or less. Alternatively, a ratio of a flow volume of an application water carrier gas for carrying the application water to be introduced into the water injector to an application water volume is set to 100 to 1,000.

公开(公告)号：US20170211885A1

公开(公告)日：2017-07-27

申请号：US15500417

申请日：2015-06-30

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kazuhiro HONDA

IPC: F27D1/16 ,  C04B35/66

CPC classification number: F27D1/16 ,  C04B35/66 ,  C22C1/05 ,  C23C4/10 ,  F27D1/1636

Abstract: Provided is a thermal spray material capable of, when used in a thermal spray operation for repairing a furnace wall of an industrial furnace or for other purposes, maintaining good post-repetition bondability with respect to a target surface to thereby prevent peel-off of a resulting thermally sprayed deposit, and improving initial ignitability while suppressing dust-generating property. The thermal spray material comprised a basic compound comprising at least one of a Ca component and an Mg component, a metal Si powder, and a silica-based or alumina-silica based powder. A content rate of a fraction constituting the basic compound and having a particle size of 0.15 mm or less is 30 mass % or more with respect to 100 mass % of the basic compound, and a content rate of a fraction constituting the metal Si powder and having a particle size of 20 μm or less is from 10 mass % to 25 mass % with respect to 100 mass % of the thermal spray material. Further, (the content rate (mass %) of the fraction constituting the metal Si powder and having a particle size of 20 μm or less, with respect to 100 mass % of the thermal spray material)/(a content rate (mass %) of the fraction constituting the basic compound and having a particle size of 0.15 mm or less, with respect to 100 mass % of the thermal spray material) is from 0.8 to 10, and a content rate of a fraction constituting the metal Si powder and. having a particle size of 10 μm or less is 60 mass % or more with respect to 100 mass % of the metal Si powder.