简介:ChineseNdFeBmagneticindustryhasmadegreatimprovementinthepastfewyears.GlobalproductioncenterofNdFeBmagnetshasbeenmovedtoChina,mainlybasedinNingbo,Taiyuan,BeijingandTianjin.ChinahasdevelopedintothelargestproducerofsinteredNdFeBintheworld.SinteredNdFeBmagnetsarewidelyappliedinhightechfieldssuchasVCM,MRI,CD-pick-upandCD-ROMinChina.VCM(voicecoilmotor)isonecomponentofharddiskdrive,whichisamostcommonusedperipheraltostoreinformation...
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简介:研究了氯乙烯-醋酸乙烯(简称VCM—VAc)共聚树脂(氯醋树脂)合成技术在30m,聚合釜中的工业化生产情况。该工艺采用复合引发剂体系、复合分散剂体系、VCM滴加工艺、微正压汽提技术和3#塔冷风干燥技术。应用结果表明,该工艺运行平稳、安全,装置利用率高,产品中醋酸乙烯酯分布均匀。