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热词
    • 72. 发明授权
    • Levitating and fusing device
    • 悬浮和定影装置
    • US5394432A
    • 1995-02-28
    • US992943
    • 1992-12-17
    • Akira FukuzawaKazuyuki SakurayaToshiaki WatanabeMotoo YamazakiTadashi MoritaTatsuo TakeMichiru Fujita
    • Akira FukuzawaKazuyuki SakurayaToshiaki WatanabeMotoo YamazakiTadashi MoritaTatsuo TakeMichiru Fujita
    • H05B6/32C22B9/16F27B14/06F27D21/00H05B6/24H05B6/22
    • F27B14/063C22B9/16F27D21/0035H05B6/24H05B2213/02Y02P10/253
    • A plurality of segments 12 respectively formed of an electrically insulated conductive material such as copper or the like are disposed inside an induction coil 1 in the peripheral direction of the induction coil 1 to thereby construct a crucible 3. There is formed a small cylindrical hole 4 in the center of the bottom portion of the crucible 3. A magnetic flux is allowed to enter the crucible 3 from slits 15 respectively formed between the hole 4 and segments 12 and is then interlinked with an object to be heated. The slits 15 respectively defined by mutually adjoining segments 12 are arranged such that the width of the bottom portion thereof is greater than that of the cylindrical portion thereof. When the width of the slit in the bottom portion is increased, then a leakage flux to the crucible is increased which in turn increases a levitation force F. If there are further formed bottom slits only in the bottom portions of the segments to thereby increase the number of the slits in the bottom portion to be greater than that of the slits in the cylindrical portion, then the leakage flux is increased to thereby increase the levitation force F, and also the fused metal is supported at multiple points, which increases the stability S thereof.
    • 分别由诸如铜等的绝缘导电材料形成的多个段12在感应线圈1的周向方向上设置在感应线圈1的内部,从而构成坩埚3.形成小的圆柱形孔4 在坩埚3的底部的中心。允许磁通从分别形成在孔4和段12之间的狭缝15进入坩埚3,然后与待加热物体相互连接。 分别由相邻的部分12限定的狭缝15被布置成使得其底部的宽度大于其圆柱形部分的宽度。 当底部的狭缝的宽度增加时,向坩埚的泄漏通量增加,这又增加了悬浮力F.如果仅在段的底部形成底部狭缝,从而增加 底部的狭缝数量大于圆筒部分的狭缝的数量,则泄漏通量增加,从而增加悬浮力F,并且熔融金属也被支撑在多个点,这增加了稳定性 S。