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Characteristics and performance requirements of sealing alloy Moderators: Moderators Jump to page : 1 Now viewing page 1 [25 messages per page]	View previous thread :: View next thread
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qizhen0926

Posted 2021-06-21 5:17 AM (#258102)
Subject: Characteristics and performance requirements of sealing alloy

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1) The thermal expansion characteristics of the alloy should match those of glass or ceramic in the process temperature range and the service temperature range of the tube.
2) The microstructure of the alloy shall not change within the temperature range;
3) The surface of the alloy should be easy to form a firm and dense oxide film;
4) The melting point of the alloy should be higher than the sealing temperature of the glass;
5) The alloy has good sealing, welding, electroplating and machining properties;Stainless Steel Wire Soap Dish
6) The contents of impure substances (volatiles), inclusions and gases should be as low as possible;Astm 36 Welded Steel Square Tubing Standard Sizes
7) Good plasticity, can withstand cold and hot deformation, easy to make various shapes of parts.
Among these performance requirements, the most important are the thermal expansion characteristics close to glass or ceramic and good wettability to glass. These two properties are collectively called alloy sealability.Large Bore Seamless Steel Pipe

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