Page 55 - Steel Tech India eMagazine Volume October 2021

92/ Ć 12 Ć 2FWREHU

IRU FRQVWUXFWLRQ DQG PDQ\ HQJLQHHULQJ DSSOLFDWLRQV
ZLWK PRVW HFRQRPLFDO DQG HQYLURQPHQWDO IULHQGO\
WHFKQRORJ\
Ć :LWK VXFFHVVIXO FRPPHUFLDO UROOLQJ RI PP KRW
UROOHG VWULSV +5*, FDQ UHSODFH &5*, VWULSV IRU
DOPRVW DSSOLFDWLRQ DQG SURGXFWLRQ SURFHVV RI
+5*, VWULSV GRHV QRW UHTXLUH FROG UROOLQJ RSHUDWLRQ
,Q DGGLWLRQ WR WKH FRVW RI FDSLWDO HTXLSPHQW IRU D
FROG UROOLQJ PLOO HOLPLQDWLRQ RI FROG UROOLQJ VDYHV DQ
RSHUDWLRQDO FRVW RI DERXW 5V SHU PHWULF WRQ
Ć $IWHU SLFNOLQJ RQO\ IRU FROG UROOLQJ RI ²
WS\ +5& WR &5)+ D SODQW ZLOO UHTXLUH DW
OHDVW D VWDQG 7DQGHP &ROG 0LOO 7&0 RU QRV
Fig. 10: Spray type Passivation/Phosphating Section RI VWDQG UHYHUVLQJ &ROG PLOOV 5&0 7KH FDSLWDO
LV LQVWDOOHG WR GU\ WKH VWULS DQG WKLV FXULQJ RYHQ DOVR KDV FRVW RI VXFK FROG UROOLQJ IDFLOLWLHV ZLOO QRW EH OHVV
WKDQ 5V FURUHV 7KH &3*/ ZLOO QRW UHTXLUH
D IXPH H[KDXVW V\VWHP ZKLFK ZLOO UHPRYH WKH YDSRXUV
VXFK FROG UROOLQJ PLOOV DV LW ZLOO GLUHFWO\ SURFHVV KRW
DQG JDVHV JHQHUDWHG RXW RI FKHPLFDO WUHDWPHQW LQ
UROOHG FRLOV WR KRW UROOHG JDOYDQL]HG FRLOV
FXULQJ RYHQ $V SHU WKH UHTXLUHPHQW RI WKH FXVWRPHUV
UROO FRDWHU W\SH SDVVLYDWLRQ HTXLSPHQW ZLWK LQGXFWLRQ Ć 6LQFH WKHVH &3*/V DUH ³+HDW WR &RDW´ OLQHV WKH
JDV ILUHG GULHU FDQ DOVR EH XVHG DV DQ DOWHUQDWLYH WR KRW UROOHG VWULSV DIWHU SLFNOLQJ DUH RQO\ KHDWHG WR D
VSUD\ W\SH FKHPLFDO SDVVLYDWLRQ SKRVSDWLQJ VHFWLRQ WHPSHUDWXUH HTXDO WR ]LQF SRW WHPSHUDWXUH VR WKDW
Delivery Section WKH VWULS GRHV QRW WDNH DZD\ KHDW IURP WKH SRW
7KHUH LV QR QHHG IRU DQ HODERUDWH DQQHDOLQJ IXUQDFH
7KH GHOLYHU\ VHFWLRQ HTXLSPHQW LQFOXGH D VWUDQG EHIRUH ]LQF FRDWLQJ OLNH WKH &5*/ OLQHV XVLQJ FROG
KRUL]RQWDO ORRSHU ZLWK DVVRFLDWHG EULGOHV VWHHULQJ UROOHG IXOO KDUG &5)+ FRLOV DV LQSXW PDWHULDO
UROOV DQ H[LW VKHDU ZLWK VFUDS DQG VDPSOH KDQGOLQJ 7KH RQO\ DSSDUHQW FRQVWUDLQW RI VXFK &3*/ LV WKH KLJK
HTXLSPHQW GRXEOH UHFRLOHU ZLWK GHOLYHU\ FRLO FDUV DV SURGXFWLRQ FDSDFLW\ 7KH &3*/ ZLOO SURFHVV KRW UROOHG
VKRZQ LQ )LJ VWULS IURP PP WR PP WKLFNQHVV )RU SURFHVVLQJ
Outlook and Conclusion KLJKHU VWULS WKLFNQHVVHV LW LV REYLRXV WKDW WKH OLQH
$ &RQWLQXRXV 3LFNOLQJ FXP *DOYDQL]LQJ /LQH &3*/ VSHHG ZLOO KDYH WR EH UHGXFHG %XW WKH PLQLPXP
RIIHUV WKH IROORZLQJ PDMRU DGYDQWDJHV SURFHVV VSHHG LV DOVR YHU\ LPSRUWDQW IRU HQVXULQJ
JRRG VXUIDFH TXDOLW\ZLWK XQLIRUP FRDWLQJ WKLFNQHVV
3UDFWLFDO SURGXFWLRQ WULDOV KDYH VKRZQ WKDW D IXUQDFH
FDSDFLW\ RI PLQLPXP WRQV KRXU ZLOO EH UHTXLUHG IRU
D &3*/ SURFHVVLQJ PP PD[LPXP ZLGWK VWULSV
$W WKH EHJLQQLQJ RI WKLV SDSHU LW LV PHQWLRQHG WKDW 5L]KDR
6WHHO &KLQD LV WKH ILUVW SODQW LQ WKH ZRUOG WR SURGXFH KRW
UROOHG VWULSV RI PP WKLFNQHVV RQ FRPPHUFLDO EDVLV
,W PD\ DOVR SHU SHUWLQHQW WR PHQWLRQ KHUH WKDW 5L]KDR
6WHHO KDYH LPSOHPHQWHG WZR PP ZLGH &3*/V
RI WS\ FDSDFLW\ WR EHFRPH WKH PDUNHW OHDGHU
LQ &KLQD IRU +5*, FRLOV 7KHVH OLQHV DUH VXSSOLHG E\
$QGULW] $XVWULD DQG 'DQLHOL ,WDO\ ,Q DGGLWLRQ WR WKHVH
OLQHV WKHUH DUH VHYHUDO &3*/ LQVWDOODWLRQV LQ (XURSH
DQG ODWHVW RQH LV SUREDEO\ DW :XSSHUPDQ +XQJDU\
VXSSOLHG E\ 606 6LHPDJ *HUPDQ\ 7KLV OLQHLV RI
Fig.11: Delivery Section equipment WS\ FDSDFLW\IRU PP WR PP WKLFN DQG
PD[LPXP PP ZLGH VWULSV
Ć &RPELQLQJ KLJK HIILFLHQF\ SLFNOLQJ VSHFLILF VNLQ 7KH JDOYDQL]LQJ RI KRW UROOHG VWHHO VWULSV HQDEOHV WKH
SDVVLQJ DQG WKH RSWLPL]HG KHDW WR FRDW WUHDWPHQW SURGXFWLRQ RI ]LQF FRDWHG VWHHO VWULS ZLWK ORQJ OLIH
ZLWKLQ D VLQJOH SURFHVV OLQH JLYHV WKH FXVWRPHU D FRUURVLRQ SURWHFWLRQ DQG DWWUDFWLYH ORRN DW ORZ SURGXFWLRQ
FRPSHWLWLYH DGYDQWDJH LQ WHUPV RI LQYHVWPHQW DV ZHOO DQG LQYHVWPHQW FRVWV 7KHUH LV D JURZLQJ PDUNHW DQG
DV RSHUDWLRQDO FRVW DQG PLQLPL]HG HQYLURQPHQWDO
LPSDFW D JUHDW PDQ\ DUHDV RI DSSOLFDWLRQV IRU JDOYDQL]HG KRW
UROOHG VWULSV LQ FRQVWUXFWLRQ HQJLQHHULQJ IXUQLWXUH DQG
Ć 6XFK &3*/ FDQPHHW WKH PDUNHW GHPDQG RI*, FRLOV DOVR LQ DXWRPRELOH LQGXVWULHV

STEEL TECH