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Ferrite ceramic metallization and brazing method
The invention provides a ferrite ceramic metallization and brazing method which comprises the following steps: mixing BaCO3 powder, SiO2 powder, CaO powder, MgO powder and Al2O3 powder, calcining at 1300-1400 DEG C for 1-2 hours, taking out, and sequentially carrying out water quenching and grinding to obtain a low-temperature eutectic mixture; the method comprises the following steps: mixing and grinding Ag powder, CuO powder and a low-temperature eutectic, then preparing paste with an organic matter, coating the surface of ferrite ceramic with the paste, drying, then carrying out two-stage calcination, finally naturally cooling to room temperature to obtain metallized ferrite ceramic, and brazing the metallized ferrite ceramic, a solder and a metal assembly. The metallization layer of the inorganic oxide in the metallization sintering process and the Ag can work at the high temperature of 800 DEG C or above for a long time after being sintered, the metallization layer can resist corrosion of silver-based welding flux and common low-temperature welding flux, and brazing of metallized ferrite ceramic and metal is effectively achieved.
本申请提供了一种铁氧体陶瓷金属化及钎焊的方法，包括：将BaCO3粉末、SiO2粉末、CaO粉末、MgO粉末以及Al2O3粉末混合后在1300～1400℃下煅烧1～2小时，取出依次进行水淬和研磨，得到低温共熔物；将Ag粉末、CuO粉末以及低温共熔物混合研磨后与有机物制成膏体，将膏体涂覆于铁氧体陶瓷表面，烘干后进行2个阶段的煅烧，最后自然冷却至室温，得到金属化铁氧体陶瓷，将金属化铁氧体陶瓷、焊料以及金属装配进行钎焊。无机氧化物在金属化烧结过程中金属化层，与Ag在烧结后可以长期在800℃以上的高温工作，金属化层可以耐受银基焊料及常用的低温焊料的溶蚀，有效实现金属化后铁氧体陶瓷与金属的钎焊。
Ferrite ceramic metallization and brazing method
The invention provides a ferrite ceramic metallization and brazing method which comprises the following steps: mixing BaCO3 powder, SiO2 powder, CaO powder, MgO powder and Al2O3 powder, calcining at 1300-1400 DEG C for 1-2 hours, taking out, and sequentially carrying out water quenching and grinding to obtain a low-temperature eutectic mixture; the method comprises the following steps: mixing and grinding Ag powder, CuO powder and a low-temperature eutectic, then preparing paste with an organic matter, coating the surface of ferrite ceramic with the paste, drying, then carrying out two-stage calcination, finally naturally cooling to room temperature to obtain metallized ferrite ceramic, and brazing the metallized ferrite ceramic, a solder and a metal assembly. The metallization layer of the inorganic oxide in the metallization sintering process and the Ag can work at the high temperature of 800 DEG C or above for a long time after being sintered, the metallization layer can resist corrosion of silver-based welding flux and common low-temperature welding flux, and brazing of metallized ferrite ceramic and metal is effectively achieved.
本申请提供了一种铁氧体陶瓷金属化及钎焊的方法，包括：将BaCO3粉末、SiO2粉末、CaO粉末、MgO粉末以及Al2O3粉末混合后在1300～1400℃下煅烧1～2小时，取出依次进行水淬和研磨，得到低温共熔物；将Ag粉末、CuO粉末以及低温共熔物混合研磨后与有机物制成膏体，将膏体涂覆于铁氧体陶瓷表面，烘干后进行2个阶段的煅烧，最后自然冷却至室温，得到金属化铁氧体陶瓷，将金属化铁氧体陶瓷、焊料以及金属装配进行钎焊。无机氧化物在金属化烧结过程中金属化层，与Ag在烧结后可以长期在800℃以上的高温工作，金属化层可以耐受银基焊料及常用的低温焊料的溶蚀，有效实现金属化后铁氧体陶瓷与金属的钎焊。
Ferrite ceramic metallization and brazing method
一种铁氧体陶瓷金属化及钎焊的方法
CHEN XIN (author) / YANG JIE (author) / LI CHEN (author) / HUANG GANG (author) / XIANG JUN (author) / LI TIANTAO (author) / LIU FEIXIANG (author) / QIN ZHEN (author) / ZHAO WEI (author) / LIU PING (author)
2024-03-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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