For molybdenum crucibles around the world, covering its manufacturing process, structural design, surface treatment, application scenarios, etc. The following is an overview of some of the main patent types and contents:
1. Patents related to manufacturing process
These patents mainly involve the manufacturing processes of molybdenum crucibles, such as forming, welding, and heat treatment. For example:
Hot isostatic pressing (HIP) molding technology: densification of molybdenum powder under high temperature and high-pressure environment to improve the density and mechanical properties of the crucible.
Vacuum welding process: Weld the molybdenum crucible in a vacuum environment to reduce oxidation and improve joint strength.
2. Structural design and optimization patents
These patents focus on the optimization of the geometric structure and stress distribution of molybdenum crucibles. For example:
Multi-layer composite structure design: Add other material layers to the inner or outer wall of the molybdenum crucible to improve corrosion resistance and mechanical strength.
Stress distribution optimization design: By changing the wall thickness or shape of the crucible, the thermal stress concentration can be reduced and the service life can be extended.
3. Surface treatment and coating patents
These patents involve adding coatings to the surface of molybdenum crucibles to improve their performance. For example:
Oxide coating technology: Coating alumina, zirconium oxide, etc. on the surface of the molybdenum crucible to improve oxidation resistance and corrosion resistance.
Plasma spraying technology: Use plasma to spray the coating material onto the surface of the molybdenum crucible to form a dense coating and improve wear resistance.
4. Patents related to application fields
These patents involve the application of molybdenum crucibles in specific fields. For example:
Semiconductor material preparation: Molybdenum crucibles are used to melt and crystallize semiconductor materials such as silicon, germanium, etc.
High temperature alloy smelting: Use molybdenum crucible to melt special alloys in high temperature environment to improve material purity.
How to search for relevant patents
To find specific patent information about molybdenum crucibles, the following patent databases can be used:
China National Intellectual Property Administration (CNIPA ): Provides Chinese patent search services, suitable for searching patents in China.
Baidu Patent Search: A Chinese online patent search platform that contains a large amount of Chinese patent information.
Google Patents: Provides patent search services worldwide in multiple languages.
Espacenet: A patent search platform provided by the European Patent Office, covering global patent data.
wikipedia.org
When searching, you can use keywords such as “molybdenum crucible”, “molybdenum crucible”, “Mo crucible”, etc., and combine them with specific technical fields or application scenarios to obtain more accurate search results.
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