Tungsten bars, rods, profiles and profiles plates, sheets, strip and foil of a deeper level of processing products export tariffs, so the 5% export tax rebate policy will continue. It can be understood, at least for now, for this type of tungsten production and exports, the country is still allowed, and even encouraged.
2013年7月18日星期四
molybdenum boat Processing
According to customer requirements and design, processing a variety of vacuum plating tungsten boat, molybdenum boat. Product processing using a process to minimize internal stresses, to reduce mechanical damage during processing in order to increase the service life. Ultrasonic cleaning, vacuum packed. To ensure that products are not contaminated before use to ensure that your quality of coating. Can replace similar imported products.
A metal utensils molybdenum processing method, relates to a chemical process in the metallurgical reduction of the baking process molybdenum plating molybdenum boat Molybdenum and molybdenum alloy and other metal utensils processing methods. Characterized in that the machining process with a thickness of 1.5mm ≤ thickness ≤ 4mm molybdenum alloy plate, the mold together with the molybdenum alloy plate heated and maintained at a temperature of 400 ~ 1200 ℃, control the speed of the hydraulic pressure control unit 5mm/min- 1mm/min, conduct a drawing shape. The method of the present invention, the high temperature strength and ductility of molybdenum alloy sheet medium, while heating the mold and the sheet, insulation, hydraulic deep drawing into a box shape slow or circular molybdenum crucible, molybdenum boat Molybdenum and molybdenum alloy and other metal utensils, the wall thickness of less than 1.5mm, and can effectively avoid drawing produced during cracking, earing, folds now *, effectively reducing molybdenum alloy vessel defects and improve the finished product rate and extend the life of the molybdenum metal utensils.
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