PROCESS FOR PRODUCING A COATING ON A REFRACTORY STRUCTURAL MEMBER

• Main Authors: KOCK WULF, MANHARDT HARALD, LUPTON DAVID, MERKER JURGEN, KRUGER FRANK
• Format: Patent
• Language: English; Korean
• Published: 25.02.2002
• Edition: 7
• Subjects: ALLOYS; ARTIFICIAL STONE; CASTING; CEMENTS; CERAMICS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; GLASS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIME, MAGNESIA; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; POWDER METALLURGY; REFRACTORIES; SLAG; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; TREATMENT OF NATURAL STONE; WORKING METALLIC POWDER

PURPOSE: Provided is a process for producing a coating on a refractory structural member, in which a noble metal alloy is applied as a coating material to the refractory structural member. CONSTITUTION: The process for producing a coating on a refractory structural member, comprises the steps of: applying a noble metal alloy to a refractory member as a coating material, wherein the noble metal alloy contains a noble metal with a melting point greater than 1,400 deg.C., the noble metal is at least one of platinum, iridium, rhodium, ruthenium and gold the noble metal alloy being used in powder form to coat the refractory member, the noble metal alloy gas a liquidus temperature(TL) of 900 deg.C. to 1,400 deg.C., the noble metal alloy contains 84-99.5 wt.% of noble metal and 0.5 -16 wt. % of the oxidizable substance including at least one of boron, phosphorus antimony and arsenic; heating the refractory structural member and the coating at least once in an oxygen-containing atmosphere to a temperature(T) that is at least equal to the liquidus temperature(TL) of the noble metal alloy; oxidizing the oxidizable substance during the heating step so as to form an oxide that is at least partially vaporized; maintaining the temperature(T) until a proportion of oxidizable substance in the coating is 70 wt.% or more of platinum and 30 wt.% or less of at least one of gold, iridium and rhodium. 본 발명은 내화 구조 부재 상에 코팅을 제작하는 방법에 관한 것이며, 여기에서 귀금속 합금은 내화 구조 부재에 코팅 재료로 도포된다. 본 발명의 목적은 유리 산업을 위한 구조 부재 상에 코팅을 제작할 때 더 신속하고 비용에 더 효과적인 방법을 이용하는 것이다. 상기 목적은 귀금속 합금이 다른 성분 중에서 산화가능한 물질을 함유하며, 상기 산화가능한 물질은 붕소 및/또는 인 및/또는 안티몬 및/또는 비소로 되어 있으며, 여기에서 내화 구조 부재 및 코팅은 귀금속 합금의 액상선 온도(T)보다 크거나 또는 동일한 온도(T)로 산소 함유 대기에서 적어도 한 번 가열되며, 산화가능한 물질은 이러한 가열 공정 동안 산화되고 형성되는 산화물은 적어도 부분적으로 증발되고, 온도(T)는 코팅에서 산화가능한 물질의 비율이 0.1 미만의 원자 퍼센트가 될 때까지 유지되어 코팅된 내화 구조 부재가 냉각되는 방법으로 달성된다.