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Zephyr Archangel is Gate-Jockey in Heaven
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zephyrarchangel
KangNam-Ku,
Sŏul-t'ŭkpyŏlsi,
South Korea
Korea Fire Fighting Corporation, who are the inventor of Nude Fire Extinguisher, Transparent … More
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6/24/09
1/4/09
12/18/08
6/8/08
1/10/08
11/7/07
59th Anniversary of Korean War
6/24/09
PC ??? ??? ?? ?? ?
O ?? ???? : ??????? ???? ? ??????(KOFEIS 0101 - 2007. 12.
?11?(??? ?? ? ??) ???? ????? ??? KS D 3512(??????), KS D 5201(? ? ? ??? ? ? ?), KS D 3705(????????? ??) ?? KS D 6701(???? ? ??????? ? ? ?) ? ????? ?? ?? ??? ???? ?? ??? ?? ? ??? 0.71 ? ????? ??.(2005. 8. .10 ??)
???? ????? ??(S)? ?? ?? ?? ???? ?? ???? ??? ?? ?????? 80 %?? ?? ??????? 50 %??(???=2 ??)??? ??.
?12?(????? ????) 3. ????? ????? P × 2.5? ???, ????? ????? ?? ????×0.8? ??? ????? ??? ?? ???? ???? ????? ??.
A. Case 1 - ?? ??? ??(???, ???? ?? ?)
1. ?? d : 10cm
2. ???? : 9.8 kg/cm2(???? ??? ? 7kgf/cm2?,
3. ?????? : ????? 2.5?
4. ??? : 2 (??? ??? ?? ?? ??? ??? ??? ??)
5. PC? ???? : ? 50MPa(500 kg/cm2) at 50?(LG-DOW? CALIBRE* PC)
1) PC ??? ????? ??? ????
S = ????/??? = Pd/2t
500/2 = 9.8*10/2*t t= 0.2cm, ? 2mm
2) PC ??? ????? ???? ????
S = ????/??? = (2.5*P)d/2t
500/2 = 2.5*9.8*10/2*t t= 0.49cm, ? 5mm(??? ??, ??? ??? 1.5? ????, ??
?? ? 7kgf/cm2 ???? ?? ? ?????(2.5/7/9.8/1.5/2.5) 1.05mm
B. Case 2 - ????? ???? ??
1. ?? d : 5cm
2. ???? : 2.1 kg/cm2 (???)
3. ?????? : ????? 2.5?
4. ??? : 2(? ??? ?????? ???? ?? ?? ????)
5. PC? ???? : ? 50MPa(500 kg/cm2) at 50?(LG-DOW? CALIBRE* PC)
1) PC ??? ????? ??? ????
S = ????/??? = (2.5*P)d/2t
500/2 = 2.5*2.1*5/2*t t= 0.0525cm, ? 0.6mm(??? ???? 0.3mm)
?? ??) 1.LG-DOW ?????? ? ??? ??? ?? ???? ?? ???? ?? ?? ????, ?? ???(????)? 2~3?? ???? ??. ? ??? ???? ?? ??? ??, ?? ????? ?? ? ????? ???? 2? ?????. ?? ?????? ????? ??? ?? 18mm, 30mm? ?? ??? ??? ???? ??? 100mm? ?? ????? ?? ??? ??? ?? ???. ????? ?? ??? ???? ?? ??? ??? ???? ????? ???? ??? ??? ?. ????? LG-DOW?? ???? CALIBRE* PC ??? ????
- ?? 100mm, ???? 9.8 kg/cm2 (???? 25 kg/cm2) ??? ????? ??? ??? ???? ?? 5mm ?? ???
- ?? 50mm, ???? 2.1 kg/cm2 (???? 5.25 kg/cm2) ??? ???? ??? ??? ???? ?? 0.6mm ?? ???
O ?? ???? : ??????? ???? ? ??????(KOFEIS 0101 - 2007. 12.
?11?(??? ?? ? ??) ???? ????? ??? KS D 3512(??????), KS D 5201(? ? ? ??? ? ? ?), KS D 3705(????????? ??) ?? KS D 6701(???? ? ??????? ? ? ?) ? ????? ?? ?? ??? ???? ?? ??? ?? ? ??? 0.71 ? ????? ??.(2005. 8. .10 ??)
???? ????? ??(S)? ?? ?? ?? ???? ?? ???? ??? ?? ?????? 80 %?? ?? ??????? 50 %??(???=2 ??)??? ??.
?12?(????? ????) 3. ????? ????? P × 2.5? ???, ????? ????? ?? ????×0.8? ??? ????? ??? ?? ???? ???? ????? ??.
A. Case 1 - ?? ??? ??(???, ???? ?? ?)
1. ?? d : 10cm
2. ???? : 9.8 kg/cm2(???? ??? ? 7kgf/cm2?,
3. ?????? : ????? 2.5?
4. ??? : 2 (??? ??? ?? ?? ??? ??? ??? ??)
5. PC? ???? : ? 50MPa(500 kg/cm2) at 50?(LG-DOW? CALIBRE* PC)
1) PC ??? ????? ??? ????
S = ????/??? = Pd/2t
500/2 = 9.8*10/2*t t= 0.2cm, ? 2mm
2) PC ??? ????? ???? ????
S = ????/??? = (2.5*P)d/2t
500/2 = 2.5*9.8*10/2*t t= 0.49cm, ? 5mm(??? ??, ??? ??? 1.5? ????, ??
?? ? 7kgf/cm2 ???? ?? ? ?????(2.5/7/9.8/1.5/2.5) 1.05mm
B. Case 2 - ????? ???? ??
1. ?? d : 5cm
2. ???? : 2.1 kg/cm2 (???)
3. ?????? : ????? 2.5?
4. ??? : 2(? ??? ?????? ???? ?? ?? ????)
5. PC? ???? : ? 50MPa(500 kg/cm2) at 50?(LG-DOW? CALIBRE* PC)
1) PC ??? ????? ??? ????
S = ????/??? = (2.5*P)d/2t
500/2 = 2.5*2.1*5/2*t t= 0.0525cm, ? 0.6mm(??? ???? 0.3mm)
?? ??) 1.LG-DOW ?????? ? ??? ??? ?? ???? ?? ???? ?? ?? ????, ?? ???(????)? 2~3?? ???? ??. ? ??? ???? ?? ??? ??, ?? ????? ?? ? ????? ???? 2? ?????. ?? ?????? ????? ??? ?? 18mm, 30mm? ?? ??? ??? ???? ??? 100mm? ?? ????? ?? ??? ??? ?? ???. ????? ?? ??? ???? ?? ??? ??? ???? ????? ???? ??? ??? ?. ????? LG-DOW?? ???? CALIBRE* PC ??? ????
- ?? 100mm, ???? 9.8 kg/cm2 (???? 25 kg/cm2) ??? ????? ??? ??? ???? ?? 5mm ?? ???
- ?? 50mm, ???? 2.1 kg/cm2 (???? 5.25 kg/cm2) ??? ???? ??? ??? ???? ?? 0.6mm ?? ???
Photo uploaded at 5:43 PM
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