小12萝裸体自慰出白浆-艳妇臀荡乳欲伦69调教视频-亚洲综合色无码-亚洲精品人成无码中文毛片

Ferrite block

2020-07-29

The ferrite cube is also called iron oxide. It is made of ferric oxide and one or more other metal oxides (for example: nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, etc.) Sintered. Its relative permeability can be as high as several thousand, the resistivity is 1011 times that of metal, and the eddy current loss is small. It is suitable for making high-frequency electromagnetic devices. The ferrite block is iron and one or more other suitable ones. Composite oxides of metal elements. The properties are semiconductors and are usually used as magnetic media. The most important difference between ferrite magnetic materials and metal or alloy magnetic materials is conductivity. Usually the former has a resistivity of 102 to 108Ω·cm, The latter is only 10-6~10-4Ω·cm.

The magnetic properties of ferrite cubes are also manifested in high magnetic permeability at high frequencies. Therefore, ferrite has become a non-metallic magnetic material that is widely used in the field of high frequency and weak electricity. Because of the magnetic energy stored in the unit volume of ferrite It is lower, and the saturation magnetization is also lower (usually only 1/3 to 1/5 of pure iron), which limits its application in low-frequency high-power and high-power fields that require higher magnetic energy density



Contact

Phone:15067907613

office:0579-89300558

fax:+86-573-85980058

E-mail:cs1@cs-magnet.com

address: Dongyang six stone street Songgang functional area Hu Lian East Street 1207

Copyright ?2020 Dongyang Changsong Magnetic Material(Group)Stock Co.,Ltd.
Technical Support: Hangzhou Creative
国产伦精品一区二区三区妓女下载| 制服丝袜一区二区三区| 国产精品免费久久久久影院仙踪林| 亚洲欧美日韩成人高清在线一区| 国产69精品久久久久久久| 中文无码日韩欧免费视频| 亚洲精品无码高潮喷水a片软| 亚洲精品无码av中文字幕电影网站| 国产精品三级在线观看无码| 国产精品三级在线观看无码| 精品人妻av区波多野结衣| аⅴ资源中文在线天堂| 一二三四视频社区在线| 亚洲精品久久久中文字幕痴女| av天堂午夜精品一区| 日韩亚洲av无码一区二区三区| 久久久久久曰本av免费免费| av 日韩 人妻 黑人 综合 无码| 精品国产精品久久一区免费式| 女人18毛片水最多| 在线观看欧美一区二区三区| 97性无码区免费| 国产在线无遮挡免费观看| 被群cao的合不拢腿h纯肉视频| 亚洲精品久久久狠狠爱小说| 日本无码欧美一区精品久久| 在线观看特色大片免费网站| 又黄又爽又色又刺激的视频| 人人妻在人人| 色狠狠色噜噜av天堂一区| 50岁人妻丰满熟妇αv无码区| 欧美aaaaaa级午夜福利视频| 丰满人妻妇伦又伦精品国产| 女人爽到高潮免费视频大全| 精品三级av无码一区| 无码国产色欲xxxx视频| 国产播放隔着超薄丝袜进入| 国产精品人妻一区二区三区四| 麻豆蜜桃av蜜臀av色欲av| 午夜人妻久久久久久久久| 欧美午夜刺激影院|