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Volume 7 Issue 1
Aug.  2021
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Lai Wuquan, Li Qin. A NEW TECHNOLOGY FOR MANUFACTURING PLASTICS-STRONTIAN FERRlTE COMPOSITE SEALING STRIP[J]. Powder Metallurgy Technology, 1989, 7(1): 18-22.
Citation: Lai Wuquan, Li Qin. A NEW TECHNOLOGY FOR MANUFACTURING PLASTICS-STRONTIAN FERRlTE COMPOSITE SEALING STRIP[J]. Powder Metallurgy Technology, 1989, 7(1): 18-22.
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A NEW TECHNOLOGY FOR MANUFACTURING PLASTICS-STRONTIAN FERRlTE COMPOSITE SEALING STRIP

  • 1. Guangxi University;

  • 2. Guangxi Academy of Science

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  • Available Online: August 22, 2021
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    • Abstract
  • A new process of producing plastics-strontian ferrite composite sealing strip (plastics magnetic strip for short)on the basis of "pre-pressing magnetic field orientation method" is given and the influence of processing parameters on the magnetic properties of products is investigated in this paper. The coarse particles by crushing waste hard magnetic ecmponents of sintered ferrite are direetly used as raw materials in this new technology, thus granulating treatment need not to do. By using two stage compaction with magnetic orientation in preforming stage, products with superior magnetic orientation can be obtained in medium magnetic fields.The main processing parameters for preformation are as follows:magnetic intensity 1900~2300 Oe, heating temperature120~140℃ and pressure 7.8~9.8 Mpa.The parameters of repressing are as follows:pressure 49~98 MPa and heating temperature 140~160 C. Products have a (BH)max of 0.7MGOe.
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