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Precautions for the Use of Welded Zirconium Crucible
The raw materials for the production of the crucible can be summarized into three types: one is crystalline natural graphite, the other is plastic refractory clay, and the third is calcined hard kaolin skeleton clinker. Since 2008, high-temperature resistant synthetic materials such as silicon carbide, alumina silicon carbide, and ferrosilicon have been used as skeleton clinker. This clinker has a significant effect on improving the quality of crucible products, enhancing its density and mechanical strength.
Zirconium crucible is an important part of the smelting furnace. It is the space for melting and refining metal liquids and is the basis for ensuring smooth smelting. Zirconium crucible has many types and specifications. It is not limited by production scale, batch size, and smelting material type. It can be arbitrarily selected, has strong applicability, and can guarantee the purity of the smelted material. The following are the precautions for the use of zirconium crucible.
* After use, place it in a dry place, avoid rainwater intrusion; slowly bake to 500 degrees Celsius before use;
* The material should be added according to the volume of the crucible, and the extrusion should not be too tight, so as to prevent the metal from undergoing thermal expansion and cracking.
* When removing the molten metal, it is best to use a spoon to pry it out. Try not to use a caliper. If a caliper or other tool is used, it should conform to the shape of the crucible to avoid excessive local force and shorten the service life.
* The service life of the crucible is related to the usage. The strong oxidizing flame should be prevented from being directly sprayed onto the crucible, and the niobium raw material can be oxidized for a short life.
Advanced Refractory Metals is a leading zirconium crucible supplier with competitive price and great delivery time. Customization is available by your request. Please visit https://www.refractorymetal.org for more information.
Post je objavljen 20.09.2019. u 09:08 sati.