Page 11 - Steel Tech India eMagazine Volume October 2021
P. 11

92/     Ć 12    Ć 2FWREHU

             Scale Free for All Steel Makers

             *Daniel Vila-Flor Dipl.-Ing

             'DQLHOL  ,7$/<















             :LWKLQ WKH SURFHVV RI PDNLQJ VWHHO  UHJDUGOHVV RI VKDSH
             VL]H RU PDWHULDO  WKH SURFHVV FUHDWHV VFDOH  6FDOH   DOVR
             NQRZQ DV R[LGH  IRUPV ZKHQ WKH VXUIDFH RI WKH VWHHO
             LV  KHDWHG  WR  WHPSHUDWXUHV  H[FHHGLQJ       GHJUHHV
             &HOVLXV ZKLOH EHLQJ H[SRVHG WR R[\JHQ  7KH SUREOHPV
             WKDW  VFDOH  FDXVHV  RFFXU  LPPHGLDWHO\  DIWHU  IRUPDWLRQ
             DQG  PD\  FRPSRXQG  GXULQJ  WKH  IROORZLQJ  UROOLQJ
             DQG  IRUPLQJ  SURFHVVHV   $OWKRXJK  WKHUH  KDYH  EHHQ
             VLJQLILFDQW VWXGLHV FRQGXFWHG E\ YDULRXV VWHHO PLOOV  DQG
             DW WKH (8 OHYHO  QR SURSHU WHFKQRORJ\ E\ WKHVH SDUWLHV
             KDV EHHQ GHYHORSHG ZKLFK ZRXOG VROYH WKH SUREOHPV
             DVVRFLDWHG ZLWK VFDOH  6FDOH )UHH WHFKQRORJ\  DV WKH
             QDPH  VXJJHVWV   LV  D  WHFKQRORJ\  GHYHORSHG   WHVWHG
             DQG SURYHQ WR ZRUN WR UHGXFH VFDOH UHODWHG SUREOHPV
             H[WHQGLQJ IURP FDVWLQJ WR ILQLVKLQJ
                                                                 Fig. 1:Effect of ScaleFree technology
             7KH IRUPDWLRQ RI VFDOH EHJLQV ZKHQ WKH VXUIDFH RI D VWHHO
             ELOOHW VKHOO VODE EDU HWF  LV KHDWHG WR KLJK WHPSHUDWXUHV
                                                                 VFDOH GHIHFWV  6FDOH E\ LWV QDWXUH LV KDUGHU WKDQ WKH KRW
             DQG H[SRVHG WR R[\JHQ  +LJK WHPSHUDWXUH LV UHTXLUHG
                                                                 SLHFH RI VWHHO EHLQJ IRUPHG  ,I LW LV OHIW RQ WKH VXUIDFH
             WR  HQDEOH  WKH  UHDFWLRQ  RI  R[\JHQ  WR  WKH  VWHHO   WKXV
                                                                 RI WKH VWHHO ZKHQ WKH ELOOHW VKHOO VODE HWF  LV UROOHG  WKH
             IRUPLQJ VFDOH  RU R[LGHV   'HSHQGLQJ RQ WKH SURFHVV
                                                                 VFDOH  LV  UROOHG  LQWR  WKH  VXUIDFH  FDXVLQJ  SLWV   VFUDWFK
             DQG PDWHULDO FRQGLWLRQV  VFDOH IRUPDWLRQ  DQG UHVXOWLQJ
                                                                 FUDFNV  RU RWKHU VKDSHG GHIHFWV  LQ WKH VXUIDFH  $V WKH
             \LHOG ORVVHV KDYH EHHQ W\SLFDOO\ UHSRUWHG WR EH EHWZHHQ
                                                                 ELOOHW VKHOO VODE HWF  LV WKHQ HORQJDWHG  WKH VL]H RI WKHVH
                  EXW  LQ VRPH FDVHV  DFWXDO ORVVHV PD\ EH PXFK
                                                                 GHIHFWV DUH PXOWLSOLHG E\ WKH HORQJDWLRQ DQG FDQ VWUHWFK
             JUHDWHU WKDQ WKDW  7KH FRVW WR WKH SURGXFHU RI VWHHO FDQ
                                                                 XS WR WKH HQWLUH OHQJWK RI WKH ILQDO SURGXFW  7KH UHVXOW
             EH HDVLO\ FDOFXODWHG
                                                                 LV VLJQLILFDQWO\ SRRU VXUIDFH TXDOLW\ ZLWK SRWHQWLDOO\ WKH
                 PLOOLRQ WRQV \HDU                      HX WRQ
             $QQXDO SURGXFWLRQ   VFDOH IRUPDWLRQ   FRVW RI VWHHO   FRVW RI   ZKROH SLHFH QHHGLQJ WR EH UHF\FOHG
                                 ORVVHV             VFDOH ORVV   ,Q DGGLWLRQ WR WKH VXUIDFH RI WKH SURGXFW EHLQJ GDPDJHG
             $V GHPRQVWUDWHG DERYH  WKH FRVW RI \LHOG ORVVHV GXH   E\ VFDOH  WKH VFDOH PD\ DOVR VWLFN WR DQG GDPDJH WKH
             WR WKH IRUPDWLRQ RI VFDOH LV VLJQLILFDQW  +RZHYHU  DV WKH   VXUIDFH RI WKH UROOV EHLQJ XVHG WR VKDSH WKH ELOOHW VKHOO
             IRUPDWLRQ RI VFDOH LV LQKHUHQW WR WKH SURFHVV RI PDNLQJ   VODE HWF  :KHQ WKLV KDSSHQV  WKH UROOV VWDPS PDUNLQJV
             VWHHO   VWHHO  SURGXFHUV  KDYH  JURZQ  DFFXVWRPHG  WR   RQWR WKH ELOOHW VKHOO VODE HWF   FDXVLQJ UHSHWLWLYH VXUIDFH
             DFFHSWLQJ WKHVH QHHGOHVV ORVVHV  6FDOH)UHH WHFKQRORJ\   GDPDJH  'HSHQGLQJ RQ WKH SURFHVV  WKLV GDPDJH PD\
             KDV EHHQ SURYHQ WR UHGXFH VFDOH IRUPDWLRQ IURP XS WR   ZRUVHQ WKH VXUIDFH TXDOLW\ DQG FDQ DOVR FDXVH WKH HQG
             DURXQG     DQG  LQ VRPH FDVHV  XS WR                SURGXFW WR EH UHF\FOHG  7KH VXUIDFH RI WKH UROOV DUH DOVR
             <LHOG ORVV LV QRW WKH RQO\ SUREOHP DVVRFLDWHG ZLWK VFDOH    GDPDJHG  E\  WKH  VFDOH   VRPHWKLQJ  WKDW  GHJUDGHV  WKH
             2WKHU PDMRU SUREOHPV ZKLFK DIIHFW TXDOLW\ LV UROOHG LQ   WRRO OLIH RI WKH UROOV DQG LQFUHDVHV WRROLQJ FRVWV

             STEEL TECH
   6   7   8   9   10   11   12   13   14   15   16