公开(公告)号：KR1020010019769A

公开(公告)日：2001-03-15

申请号：KR1019990036353

申请日：1999-08-30

Applicant: 한국전력공사

Inventor： 김민태 ,  허남희 ,  신재호 ,  장동식 ,  정진성

IPC: C23C10/52

CPC classification number: C23C10/56 ,  C22C33/0242 ,  C22C38/18

Abstract: PURPOSE: A powder composition for simultaneously coating aluminum and chromium on metal surface and a method for coating the same are provided to obtain pack cementation of aluminum and chromium by freely controlling a composition of aluminum and chromium oxide, and supply economical mixed powder by using oxide powder instead of alloy powder. CONSTITUTION: A powder composition for simultaneously coating aluminum and chromium on metal surface is a mixed powder comprising an aluminum powder, a chromium oxide powder producing chromium by reacting with the aluminum powder, an activator powder activating chromium produced by the reaction and the remaining aluminum, and a filler for preventing condensation thereof. A method for simultaneously coating aluminum and chromium on metal surface comprises the process of putting the mixed powder into a heat resistant container, coating the container with metal, and simultaneously coating chromium and aluminum on the metal by sealing the container or heating the container under the inert gas or hydrogen environment at a temperature of 800 to 1200 deg.C for 1 to 30 hours.

Abstract translation: 目的：提供同时在金属表面上涂覆铝和铬的粉末组合物及其涂覆方法，通过自由控制铝和铬的组成来获得铝和铬的包装胶合，并通过使用氧化物提供经济的混合粉末 粉末代替合金粉末。 构成：同时在金属表面上涂覆铝和铬的粉末组合物是一种混合粉末，其包含铝粉末，通过与铝粉末反应产生铬的铬氧化物粉末，通过反应产生的活化剂粉末和剩余的铝， 和用于防止其凝结的填料。 在金属表面上同时涂覆铝和铬的方法包括将混合粉末放入耐热容器中，用金属涂覆容器的过程，同时通过密封容器或将容器加热到金属上，同时在金属上涂覆铬和铝 惰性气体或氢气环境，温度为800至1200℃，持续1至30小时。

公开(公告)号：KR100305728B1

公开(公告)日：2001-09-24

申请号：KR1019990036353

申请日：1999-08-30

Applicant: 한국전력공사

Inventor： 김민태 ,  허남희 ,  신재호 ,  장동식 ,  정진성

IPC: C23C10/52

Abstract: 본발명은금속표면에내식성과고온내산화성이높은알루미늄과크롬합금의확산층을얻기위한확산코팅용분말조성과그 조성을이용한분말확산코팅방법(Pack Cementation Method)에관한것이다. 본발명에의한확산코팅용분말은알루미늄분말, 알루미늄분말과반응하여크롬을생성하는크롬산화물분말, 알루미늄분말및 알루미늄과크롬산화물과의반응으로생성된크롬을활성화시키는활성제분말, 그리고상기분말들이고온에서응결되는것을방지하는위해알루미나또는실리콘카바이드의충전제분말로구성된것이다. 본발명은상기의확산코팅용혼합분말을담은내열용기속에알루미늄과크롬합금의확산층을도포하고자하는금속으로철계또는니켈계금속부품을매립하고용기를밀봉한다음, 800℃내지 1,200℃에서일정시간가열하여금속의표면에두께수십㎛ 이상의알루미늄과크롬이동시에확산코팅된층을얻는것을목적으로한다.

公开(公告)号：KR1020010039429A

公开(公告)日：2001-05-15

申请号：KR1019990047813

申请日：1999-10-30

Applicant: 한국전력공사

Inventor： 허남희 ,  정진성 ,  신호상

IPC: C21D8/12

Abstract: PURPOSE: A method for manufacturing an ultra thin grain-oriented high silicon steel sheet is provided to increase the content of the silicon inside the silicon steel due to the iron evaporation by hot and cold rolling a silicon steel containing 4 wt.% or less of silicon, annealing the silicon steel at a high temperature and under the vacuum condition, thereby evaporating iron, and manufacture the silicon steel sheet having low core loss, low magnetostriction and high magnetic induction by decreasing the thickness thereof. CONSTITUTION: The method comprises the processes of first process (S101) of smelting a silicon steel containing 4 wt.% or less of silicon; second process (S102) of hot rolling the smelted silicon steel in the first process to a thickness of 2 mm or less; third process (S103) of cold rolling the hot rolled silicon steel in the second process to a thickness of 0.02 to 0.6 mm; and fourth process (S104) of forming {110} Goss textures by annealing the cold rolled silicon steel in the third process at a temperature of 1000 to 1400 deg.C under the vacuum and evaporating the iron, wherein the silicon content inside the silicon steel is increased to 4 to 11 wt.% and a thickness of the silicon steel is decreased to 0.01 to 0.5 mm.

Abstract translation: 目的：提供一种制造超薄晶粒取向高硅钢板的方法，以通过热和冷轧将含有4重量％以下的硅钢作为铁蒸发来提高硅钢内部的硅含量 硅，在高温和真空条件下退火硅钢，由此蒸发铁，并且通过减小其厚度来制造具有低铁损，低磁致伸缩和高磁感应的硅钢片。 构成：该方法包括熔融含有4重量％以下的硅的硅钢的第一工序（S101）的工序; 在第一工序中将熔融硅钢热轧至2mm以下的第二工序（S102） 在第二工序中将热轧硅钢冷轧至0.02〜0.6mm的厚度的第三工序（S103） 以及在真空中在1000〜1400℃的温度下在第三工序中对冷轧硅钢退火并蒸发铁的步骤（S104），形成{110} <001>高斯结构，其中，硅含量在 硅钢的含量增加到4〜11重量％，硅钢的厚度减少到0.01〜0.5毫米。