platinum crucible

The paper studies the pure corundum crucible which replaces platinum crucible, analyzed the structure of the pure corundum, tested its properties and discussed the factors which influence the properties of the pure corundum crucible.

本文研究了用作铂金坩埚代用品的纯刚玉坩埚。分析了纯刚玉的结构，测试了纯刚玉坩埚的性能，并对影响纯刚玉坩埚性能的因素进行了探讨。

Through the corrosion of platinum alloy crucible and many tests, the reasons have been found. Fe and P compound have been regarded as main corrosion materials, and some problems of testing dust sample have been put forward.

通过一起铂坩锅被腐蚀现象及其多次对比试验，找出了被腐蚀原因，确定了铁、含磷化合物是粉尘样品测定中主要腐蚀性物质，提出了用铂坩锅测定粉尘样品时应注意的问题。

A Study on the Replacement of Platinum Crucible by Pure Corundum Crucible

纯刚玉代铂坩埚的研制

Based on the experience in melting optical glasses, how to increase the using period of platinum crucible is also discussed.

提出了铂金坩埚使用与维护的某些措施，以达到延长铂坩埚使用期的目的。

Application and Maintenance of Platinum Crucible for Melting Optical Glasses

熔炼光学玻璃铂坩埚的使用与维护