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1) LONGITUDINAL SEAM Àº ºÎ±Ù LONGITUDINAL SEAM °ú´Â ASME SEC.VIII DIV.1 UW-9¿¡ ÀÇ°Å THICKNESSÀÇ 5¹è ÀÌ»ó ¶³¾îÁöµµ·Ï ÇÒ°Í
2) HEAD¸¦ COLD FORMINGÇÏ´Â °æ¿ì ASME SEC.VIII DIV.1 UCS-79¿¡ ÀÇ°Å FIBER ELONGTION ÀÌ 5% ³ÑÀ¸¸é STRESS RELIEVING¸¦ ½ÃÇàÇØ¾ß ÇÑ´Ù.
3) CLAD¸¦ °­µµ°è»ê¿¡ Æ÷ÇÔ½Ãų °æ¿ì´Â CLADINGÀÇ SHEAR STRENGTH°¡ 14kg/cm2(20000 PSI)ÀÌ»ó ¹× ULTRASONIC TEST¸¦ ½ÃÇàÇØ¾ß ÇÑ´Ù.
4) CLAD¸¦ °­µµ°è»ê¿¡ Æ÷ÇÔ½ÃÅ°´Â °æ¿ì´Â RADIOGRAPHY TEST¸¦ CLADING DEPOSIT±îÁö ¿Ï·áÇÏ°í ½ÃÇàÇÑ´Ù.
5) NOZZLE PRESSURE STIFFENER RING ÃëºÎ SELDINGÀº °¢ CODE ±ÔÁ¤À» Áöų °Í. (ASME.SEC.VIII DIV.1 UG-30(
6) NOZZLE FLANGE RATINGÀº ANSI OR JRIµî PRESSURE - TEMPERATURE CHART¿¡ µû¶ó RECHECK ÇØ¾ß ÇÑ´Ù.
7) NOZZLEL FLANGE FACE FINISHINGÀº SERRATION ÀÎÁö SMOOTH ÀÎÁö ÁÖ¹®ÁÖ ÇÑÅ× È®ÀÎÇؼ­ DWG.¿¡ ¹Ýµå½Ã ¸í½ÃÇØ¾ß ÇÑ´Ù.
8_ ÁÖ¹®ÁÖ°¡ NOZZLE INSIDE DIAMETRE¸¦ ÁöÁ¤ÇÑ °æ¿ì´Â ÁöÄÑ¾ß ÇÑ´Ù.(THEFMOCOUPLE INSERT¿ë ¹× FLOW ¿ÀÁö»ó ÇÊ¿äÇÑ °æ¿ì)
9) NOZZLE ÀÌ 2°³ ÀÌ»ó ±ÙÁ¢Çؼ­ ¼³Ä¡µÇ´Â °æ¿ì´Â ´ÙÀ½°ú °°ÀÌ ÃÖ¼ÒÇÑÀÇ °Å¸®¸¦ À¯ÁöÇØ¾ß ÇÑ´Ù.
a. ASME SEC.BIII DIV.1 UG-42´Â Æò±Õ Á÷°æ(2°³)ÀÇ 1.3¹è ÀÌ»ó ¶³¾îÁú °Í.(JIS B 8243Àº PARA 8.14¿¡ ¸í½ÃµÇ¾úÀ¸³ª DIV.1°ú µ¿ÀÏ)
10)NOZZE NECK PIPE SCHEDULEÀû¿ëÀº ÁÖ¹®ÁÖ°¡ ÁöÁ¤ÇÑ STANDARD¿¡ µû¶ó ½ÃÇàÇϵÇ, STANDARD°¡ ¾ø°Å³ª ASME SEC.VIII DIV.1 UG-45¿¡¼­ ¿ä±¸ÇÑ THICKNESSº¸´Ù ¾ãÀ» °æ¿ì´Â ASME SEC.VIII DIV.1 UG-45¿¡¼­ ÇÊ¿äÇÑ THICKNESS¸¦ »ç¿ëÇÑ´Ù.
-
*ASME SEC.VIII DIV.1 UG-45 ±ÔÁ¤Àº ´ÙÀ½ °è»êÁß ÀûÀº°ªÀ» »ç¿ëÇÑ´Ù.
a.NOZZEÀÌ ºÙ´Â SHELL OR HEADÀÇ INTERNAL PRESSURE¿¡ ÀÇÇØ °è»êÇÑ ÇÊ¿ä THICKNESS¿¡ CORROWION ALLOWANCE¸¦ ´õÇÑ THICKNESS
b. NOZZEÀÌ ºÙ´Â SHELL OR HEADÀÇ EXTERNAL PRESSURE¿¡ ÀÇÇØ °è»êÇÑ ÇÊ¿ä THICKNESS¿¡ CORROSION ALLOWANCE ¸¦ ´õÇÑ THICKNESS.
c. À§ÀÇ a), b) Áß Å« °ª.
d.STANDARE WALL THICKNESS¿¡ CORROSION ALLOWANCE¸¦ ´õÇÑ THICKNESS .
11)SADDLE SUPPORT ºÎÀ§´Â ZICK½Ä¿¡ ÀÇÇÑ CIRCUMEFERENTAL BENDING MOMENT¿¡ ÀÇÇÑ STIFFENER º¸°­ ¿©ºÎ¸¦ CHECK ÇØ¾ß ÇÑ´Ù.
12)SLIDING SIDEÀÇ SLOT HOLE LOCATION °áÁ¤½Ã COLDÀÎÁö HOTÀÎÁö CHECKÇÏ¿© ANCHOR BOLT LOCATION À» ÁÖÀÇÇÏ¿© °áÁ¤ÇÒ °Í.
13) SADDLEÀ» ÁÖ¹®ÁÖ°¡ Á¦½ÃÇÑ STANDARD Àû¿ë½Ã MAZIMUM WEIGHT¹× SADDLE WEIGHT¸¦ ³Ñ´ÂÁö CHECKÇÏ¿µ SPECIAL °Ô»êÀÌ ÇÊ¿äÇÑ °ÍÀº °è»êÇÒ °Í.
14) SHELL THICKNESS°¡ ¾ãÀº °æ¿ì´Â LUG SIZE¸¦ Å°¿ö LOCAL STRESS¿¡ À¯¸®Çϵµ·Ï Çϸç SET BOLT CIRCLE DIAMETER°¡ Å« °æ¿ì´Â ÁÖÀÇÇÏ¿© ÃæºÐÈ÷ °ËÅäÇØ¾ß ÇÑ´Ù.
15) LINING¹æ¹ýÀº VACUUM Á¶°Ç ¿îÀü¿¡¼­ »ç¿ëÇؼ­´Â ¾ÈµÇ¸ç, VACUUM CONDITION¿¡ »ç¿ë½Ã PLUG WELDINGÀ¸·Î VACUUM Á¶°Ç¿¡ °ßµðµµ·Ï °ËÅäÇØ¾ß ÇÑ´Ù.
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PES21

2004-12-17

34514