登录 添加会员 求助
 
Ningbo Thumb Magnets Co., Ltd.
 
 
Recommended Results 
 
Ferrite magnets  

  产品分类 : 電子電工->其他->軟性鐵氧磁體

     
Ferrite magnets
 
         

  产品规格
 
Model No:    RS-Ferrite magnets
  Country  CN
  Brand  Risheng Magnets
  Materials  Ferrite
  Payment Term  T/T

 

  产品描述
   
  Ferrite magnets are made of SrO or BaO and Fe2O3 by ceramic processing technology. Ferrite magnets are very hard and brittle, and require specialized machining techniques. Moreover, they should be machined in an unmagnetized state. Due to their low cost, Ferrite magnets enjoy a very wide range of applications, from motors and loudspeakers to toys and crafts, and are the most widely used permanent magnets today.

Manufacturing Process

Pressing and sintering involves pressing very fine ferrite powder in a die, and then sintering this pressed magnet. All fully dense Ferrite magnets are produced this way. Ferrite magnets can be wet pressed or dry pressed. Wet pressing yields better magnetic properties, but poorer physical tolerances. Generally, the powder is dry for grade 1 or 5 materials, and wet for grade 8 and higher materials. Sintering involves subjecting the material to high temperatures to fuse the pressed powder together, thus creating a solid material. Magnets produced through this process usually need to have some finish machining, otherwise surface finishes and tolerances are not acceptable. Some manufacturers extrude instead of press wet powder slurry and then sinter the material. This is sometimes done for arc segment shapes, where the arc cross-section is extruded in long lengths, sintered, and then cut to length.

Machining

Ferrite is brittle, and prone to chipping and cracking. Special machining techniques must be used to machine this material. We are fully equipped to machine these materials to your blueprint specifications.

Surface treatments

The corrosion resistance of Ferrite is considered excellent , and no surface treatments are required. However, Ferrite magnets may have a thin film of fine magnet powder on the surface and for clean, non-contaminated applications, some form of coating may be required.

Magnetizing

Ferrite magnets require magnetizing fields of about 10 kOe. They can be magnetized with multiple poles on one or both pole surfaces.

Anisotropic grades are oriented in the manufacturing direction, and must be magnetized in the direction of orientation. Isotropic grades are not oriented and can be magnetized in any direction, although some degree of greater magnetic strength will be found in the pressing dimension, usually the shortest dimension.

   


[ 返回产品型录 ]

Commerce 会员:
请登录您的帐号跟口令,系统将为您填入您的相关资料
 
 
帐号:
口令:
 记住我的帐号
 
 
填写下列表格并寄送询问函．所有的询问信函将会自动寄发给你想联络的公司
主題
內容 （ 请勿输入公司名称、Email、电话、传真、网址 ）
   

 


公司简介:
* 公司名称
*E-mail
*国家
*联络人
网址
*电话
 - -
传真
 - -
*邮递区号
*城市
*街道地址
*企业形态
 批发商   出口商 进口商 制造商
大盘商 零售商  代理商 Retrofitter 使用者
其他, 请详细说明:
*安全口令
请输入所显示的安全口令


网站导览 l 隐私权政策 l 服务团队 l 合作提案 l 联络我们 l 帮帮我 l 广告刊登l  B2B商业伙伴
    .