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1. 发明申请

WO2015034387A8 METHOD FOR PRODUCING COMPOSITE MATERIALS BASED ON PLATINUM OR ON PLATINUM-RHODIUM ALLOYS 审中-公开
标题翻译：基于铂或铂 - 铑合金生产复合材料的方法
公开(公告)号：WO2015034387A8
公开(公告)日：2016-05-26
申请号：PCT/RU2013000779
申请日：2013-09-06
申请人： OTKRYTOYE AKTSIONERNOYE OBSHCHESTVO KY ZD TSVETNYKH METALLOV IM V N GULIDOVA
发明人： EFIMOV WALERIY NIKOLAEVICH , GOREVAYA OLGA NIKOLAEVNA , PAVLOV EVGENIY ALEKSANDROVICH , KHORIKOV PAVEL ALEKSANDROVICH , EL TSIN SERGEY IVANOVICH , GUSHCHINSKIY ANDREY ANATOL EVICH
IPC分类号： C22C1/04 , B22F3/16 , C22C5/04 , C22C32/00
CPC分类号： C22C5/04 , B22F1/0003 , B22F3/02 , B22F3/10 , B22F3/162 , B22F3/17 , B22F9/04 , B22F2001/0092 , B22F2003/248 , B22F2201/03 , B22F2201/20 , B22F2202/07 , B22F2301/25 , B22F2999/00 , C21D1/26 , C22C1/02 , C22C1/0466 , C22C1/06 , C22C32/0021 , C22F1/14
摘要： The invention relates to the field of noble metal metallurgy, and specifically to the production of platinum or of platinum-rhodium alloys, reinforced using dispersed oxide particles. Such composite materials are widely utilized in preparing glass melting apparatuses and bushing assemblies used in harsh, high-temperature environments. The problem which the proposed technical solution aims to solve consists in shortening the operational duration of the prolonged oxidative annealing of a powder which is produced by electro-physically dispersing a zirconium-doped alloy, and also in increasing the level of degassing of semi-finished products which are produced by compressing the powder and are subsequently used in preparing glass melting apparatuses and bushing assemblies. The technical result is achieved in that the electro-physical dispersion of platinum or of a platinum-rhodium alloy, which is doped with a zirconium additive, is carried out in a distilled water environment which is sparged using an oxygen-containing gas mixture containing 20-50 percent by volume of oxygen, and in that the sintering of briquettes produced by compressing the powder is carried out in a vacuum at a temperature of 1200-1600C over a period of 2-4 hours. The essence of the proposed technical solution consists in that the electro-physical dispersion of platinum-based zirconium-containing alloys in a distilled water environment while sparging same using an oxygen-containing gas mixture containing 20-50 percent by volume of oxygen, is accompanied by a more thorough oxidation of the zirconium than in the prototype method, thus simplifying the subsequent oxidative annealing process, and decreasing the duration and energy-consumption thereof, while the sintering of briquettes, produced from the powder, in a vacuum at a temperature of 1200-1600C over a period of 2-4 hours, allows for the desorption of absorbed gases and the removal thereof from the composite materials. An example is given regarding producing a composite material based on a 90-10 platinum-rhodium (PtRh) alloy which is stabilized using zirconium oxide.
摘要翻译：本发明涉及贵金属冶金领域，特别涉及使用分散的氧化物颗粒增强的铂或铂 - 铑合金的生产。这种复合材料广泛用于制备在恶劣，高温环境中使用的玻璃熔化设备和衬套组件。提出的技术解决方案旨在解决的问题在于缩短通过电 - 物理分散锆掺杂合金而产生的粉末的延长的氧化退火的操作持续时间，并且还提高半成品的脱气水平通过压缩粉末制造并随后用于制备玻璃熔化装置和套管组件的产品。实现了技术结果，其中掺杂有锆添加剂的铂或铂 - 铑合金的电物理分散体在蒸馏水环境中进行，蒸馏水环境中使用含有20的含氧气体混合物 -50体积％的氧，并且通过压缩粉末制备的团块的烧结在1200-1600℃的温度下在2-4小时的时间内进行。所提出的技术方案的实质在于，使用含有20-50％（体积）氧气的含氧气体混合物，在蒸馏水环境中电子物理分散铂基的含锆合金，同时喷射相同通过比原型方法更彻底地氧化锆，从而简化了随后的氧化退火工艺，并且减少了其持续时间和能量消耗，同时在粉末产生的团块的烧结中，在真空中在温度为 1200-1600℃，2-4小时，允许吸收的气体解吸并从复合材料中除去。给出了基于使用氧化锆稳定的90-10铂 - 铑（PtRh）合金制备复合材料的实例。

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