论文部分内容阅读
前言由于铂有极好的抗腐蚀性、抗氧化性、催化活性和高熔点,使它具有重大的技术应用价值。长期以来,在工业上就使用它来作生产玻璃纤维用的衬套和漏板;熔化光学玻璃用的坩埚、搅拌器;硝酸工业中氮氧化用的催化网;各类铂热电偶;高温加热炉的发热元件以及化工和冶金等各部门常使用的各种坩埚器皿。直到今天,还没有找到一种材料能取代铂在上述这些工业应用中的重要地位。铂的许多工业应用都是在高温下进行的,因此研究和认识铂的高温行为具有重大意义。铂虽然在高温下具有许多宝贵的特性,但某些使用环境会严重损害这些宝贵特性,致使铂器件迅速破坏,造成工作的停顿以及这种贵重金属的大量损失。
Preface Because platinum has excellent corrosion resistance, oxidation resistance, catalytic activity and high melting point, it has great technical value. For a long time, it has been used industrially for the production of bushings and runners for glass fibers; crucibles and agitators for melting optical glass; catalytic nets for the oxidation of nitric acid; various types of platinum thermocouples; Furnace heating elements and chemical and metallurgical and other departments often use a variety of crucible vessels. Until today, no material has been found that could replace platinum as an important part of these industrial applications. Many industrial applications of platinum are carried out at high temperatures, so research and understanding of the high temperature behavior of platinum is of great significance. Although platinum has many valuable properties at high temperatures, certain conditions of use can severely damage these valuable properties, causing the rapid destruction of platinum devices, resulting in work stoppages and significant losses of such precious metals.