There are methods for joining ceramics and metals, including the metallization method and the active metal method.
Ceramics are a general term for inorganic materials that have been fired and solidified, and pottery and glass are also part of the ceramics family. 【Characteristics of Ceramics】 - Electrical insulation properties - High strength at high temperatures - Excellent corrosion resistance - High hardness and wear resistance - Low thermal expansion rate 【Brazing Methods】 The metallization method creates a wettable film on the surface of ceramics, while the active metal method involves adding elements that activate wetting to the brazing material. The metallization method uses "silver brazing," and the active metal method uses "active brazing." For brazing materials such as CBN and diamond used in tools, the active metal method is recommended. We will provide clear explanations with diagrams in the PDF materials.
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"Brazing" is a technique that involves flowing "molten metal filler" between base materials and cooling it to join them. The base materials and the filler are firmly bonded at the atomic level. 【Brazing is a familiar joining technology】 Brazing is used in parts for automobiles, air conditioners, gas water heaters, tools, and more. It is widely useful in fields such as machining and pipe processing. 【Advantages of Brazing】 ● Can join thin sheets and achieve precise connections ● Can join multiple points simultaneously ● Can join dissimilar metals and non-metals ● Can create complex shapes that cannot be made through cutting or grinding ● Can achieve high airtightness in joints While "welding" is a technique that joins materials by melting the base material, "brazing" is a technique that joins materials with little to no melting of the base material, making it suitable for joining delicate parts such as small items and thin sheets.
