Molybdenum Support Screws for PVD and Molybdenum Special Shapes Machining
In the Physical Vapor Deposition (PVD) process, molybdenum support rods (Mo support rods or Mo mandrels) are an essential component, particularly during certain specific coating deposition processes. The primary functions of the molybdenum rods include:
High Temperature StabilityMolybdenum, with its high melting point (approximately 2623°C) and excellent thermal stability, maintains structural integrity in high-temperature environments during PVD processes. It is suitable as a support structure, such as hanging or supporting the substrate material for film deposition in processes like evaporation deposition or plasma spraying.
Low thermal expansion coefficientMolybdenum has a low coefficient of thermal expansion, which means it experiences relatively minor size changes during temperature fluctuations. This is crucial for accurately controlling film thickness and maintaining the substrate shape.
Excellent conductivityMolybdenum is an excellent conductive material, which is advantageous in certain PVD processes, such as when it is necessary to transfer electricity through supporting structures. It helps to form a uniform electric field, promoting the even deposition of the film.
Corrosion ResistanceMolybdenum boasts excellent corrosion resistance in a variety of chemical environments, which aids in maintaining its performance over long-term use and multiple process cycles, reducing the risk of pollution.
CustomizabilityMolybdenum wire rods can be customized according to different application requirements for diameter, length, and surface treatment to meet the design and process conditions of specific PVD chambers.
In particular, molybdenum-supported screw rods are used to hang or secure these substrates during the coating process of rotating coatings or tubular materials, ensuring they receive even plating during deposition and can withstand mechanical and thermal stresses in the process. Moreover, molybdenum rods are commonly found in PVD coatings for parts with special geometries, such as in the manufacturing of optical fibers, lighting equipment, or aerospace components.
Baoji Bilong Metal Co., Ltd. produces and sells various non-ferrous metal materials and alloys, including tungsten, molybdenum, tantalum, niobium, zirconium, and nickel, in the form of plates, bars, wires, strips, foils, and deep-processed products such as crucibles, fasteners, vacuum furnace hearths and accessories (electrode rods, heating strips, insulating screens, connecting pieces, reinforcing sheets), ion implantation parts, MOCVD, PVD, MBE equipment components, shielding parts, high-density alloy counterweights, target materials, boats, and material trays. We offer custom processing of non-standard parts to fabricate products that are widely used in aerospace, space technology, vacuum furnaces, special metals, special glass, machinery, electronics, chemicals, lighting, LED, semiconductor, and solar photovoltaic fields.
