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Á¦4Àý ±× ¹ÛÀÇ Çձݰ­°ú ÇÕ±ÝÀ̳ª ºñÇձݰ­ÀÇ Áß°ø(ñéÍö)µå¸±ºÀ (Á¦7224È£ - Á¦7229È£)

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±× ¹ÛÀÇ Çձݰ­(alloy steel)Àº ÀÌ ·ùÀÇ ÁÖ Á¦1È£¹Ù¸ñ¿¡ Á¤ÀǵǾî ÀÖ°í, Áß°ø(ñéÍö) µå¸±ºÀ(hollow drill bars and rods)Àº ÀÌ ·ùÀÇ ÁÖ Á¦1È£°Å¸ñ¿¡ Á¤ÀǵǾî ÀÖ´Ù.
ÀÌ Àý¿¡´Â À×°÷(ingot) ¸ð¾çÀ̳ª Áß°ø(ñéÍö) ÀÏÂ÷ ¸ð¾çÀÇ Çձݰ­(½ºÅ×Àθ®½º°­Àº Á¦¿Ü), ¹ÝÁ¦Ç°[¿¹: ºí·ë(bloom)¡¤ºô¸´(billet)¡¤¶ó¿îµå(round)¡¤½½·¡ºê(slab)¡¤½ÃÆ®¹Ù(sheet bar)¡¤´ÜÁ¶(Ó´ðã : forging)¿¡ ÀÇÇØ °ÅÄ¥°Ô ¼ºÇüµÈ Çǽº], ÆòÆǾп¬Á¦Ç°[ÄÚÀÏ ¸ð¾ç(¿ÍÀ̵å Ç÷¿(wide flat)¡¤¿ÍÀ̵å ÄÚÀÏ(wide coil)¡¤½ÃÆ®(sheet)¡¤Ç÷¹ÀÌÆ®(plate)³ª ½ºÆ®¸³(strip)À̶ó°í ºÎ¸£´Â °Í)ÀÎÁö¿¡ »ó°ü¾ø´Ù], ºÀ(bars¡¤rods), Çü°­(û¡Ë¼ : angle¡¤shape¡¤section)À̳ª ¼±(wire)À» ºÐ·ùÇÑ´Ù.
ÀÌ·¯ÇÑ ¸ðµç Á¦Ç°Àº °¡°øµÇ´Â °æ¿ìµµ Àִµ¥, ÀÌ·¯ÇÑ °¡°øÀ¸·Î ÀÎÇÏ¿© ´Ù¸¥ È£¿¡ ÇØ´çµÇ´Â ¹°Ç°À̳ª Á¦Ç°ÀÇ Æ¯¼ºÀ» °®Áö ¾Ê´Â °ÍÀ̾î¾ß ÇÑ´Ù(Á¦7206È£ºÎÅÍ Á¦7217È£±îÁö Çؼ³ ÂüÁ¶).


±× ¹ÛÀÇ Çձݰ­¿¡ ÁÖ·Î Á¸ÀçÇÏ´Â ±Ý¼ÓÀº ¸Á°£(manganese), ´ÏÄÌ(nickel), Å©·Î¹Å(chromium), ÅÖ½ºÅÙ(tungsten)[¿ùÇÁ¶÷(wolfram)], ¸ô¸®ºêµ§(molybdenum), ¹Ù³ªµã(vanadium)°ú ÄÚ¹ßÆ®(cobalt)À̸ç; ºñ(Þª)±Ý¼Ó(non-metal) ÷°¡¹°Àº ÁÖ·Î ±Ô¼ÒÀÌ´Ù. ÀÌ·¯ÇÑ ÇÕ±Ý ¹°ÁúÀº °­¿¡ Ư¼öÇÑ ¼ºÁúÀ» ºÎ¿©ÇÑ´Ù. ¿¹¸¦ µé¸é, Ãæ°Ý°ú ¸¶¼Õ¿¡ ´ëÇÑ ÀúÇ×¼º(¿¹: ¸Á°£°­); Àüµµ¼ºÀÇ Çâ»ó(±Ô¼Ò°­), °æµµ¼ºÀÇ Çâ»ó[¿¹: ¹Ù³ªµã°­(vanadium steel)]; Àý´Ü¼ÓµµÀÇ Áõ°¡[¿¹: Å©·Î¹Å-ÅÖ½ºÅÙ°­(chrome-tungsten steel)] µîÀÌ´Ù.
±× ¹ÛÀÇ Çձݰ­Àº Ư¼öÇÑ ¼ºÁú[¿¹: ³»±¸¼º, °æµµ(ÌãÓø)¼ºÀ» Áõ°¡½ÃÅ°´Â °Í, ź¼º, °­µµ]À» ¿äÇÏ´Â ¸¹Àº ¸ñÀû¿¡ »ç¿ëÇÑ´Ù. ¿¹¸¦ µé¸é, º´±â, °ø±¸¿Í Ä®ºÙÀÌ¿Í ±â°è·ù¿¡ »ç¿ëÇÑ´Ù.


ÀÌ ÀýÀÇ Çձݰ­¿¡´Â ´ÙÀ½ °ÍÀÌ Æ÷ÇÔÇÑ´Ù.

(1) º¸Åë ´ÙÀ½ÀÇ ¿ø¼Ò¸¦ Æ÷ÇÔÇÏ°í ÀÖ´Â ¿£Áö´Ï¾î¸µ Çձݰ­°ú ±¸Á¶¿ë Çձݰ­ : Å©·Î¹Å(chromium)¡¤¸Á°£(manganese)¡¤´ÏÄÌ(nickel)¡¤½Ç¸®ÄÜ(silicon)°ú ¹Ù³ªµã(vanadium)

(2) ±ØÈ÷ ¼Ò·®ÀÇ ºØ¼Ò(Àü Áß·®ÀÇ 0.0008% ÀÌ»ó)³ª ´Ï¿Àºç(niobium)(Àü Áß·®ÀÇ 0.06% ÀÌ»ó)À» ƯÀ¯ÇÏ°Ô ÇÔÀ¯ÇÔÀ¸·Î½á Çâ»óµÈ ÀÎÀå °­µµ(tensile strength)¿Í ¿ëÁ¢¼º(welding properties)À» °¡Áö°í ÀÖ´Â Çձݰ­

(3) Å©·Î¹Å(chromium)À̳ª ±¸¸®¸¦ ÇÔÀ¯Çϸ鼭 ³»ÈļºÀÌ ÀÖ´Â Çձݰ­

(4) º¸Åë ½Ç¸®ÄÜ(silicon)À̳ª ¾Ë·ç¹Ì´½(aluminium)À» 3~4% ÇÔÀ¯ÇÏ°í ÀÖ´Â "¸¶±×³×ƽ(magnetic)"ÆÇ[ÀÚ¼º(í¸àõ : magnetic)¼Õ½ÇÀÌ ³·Àº °Í]¿¡ »ç¿ëÇϱâ À§ÇÑ Çձݰ­

(5) ÁÖ Á¦1È£¹Ù¸ñÀÇ ¿ä°Ç¿¡ ÀÏÄ¡ÇÏ´Â °Í»Ó¸¸ ¾Æ´Ï¶ó ´ÙÀ½ÀÇ ¿ø¼Ò¸¦ ÃÖ¼ÒÇÑ Çϳª ÀÌ»ó ÇÔÀ¯ÇÏ°í ÀÖ´Â Äè»è°­(öáÞû˼ : free cutting alloy steels) : ³³, Ȳ, ¼¿·»(selenium), Åڷ縣(tellurium)³ª ºñ½º¹«Æ®(bismuth)

(6) º£¾î¸µ(bearing)¿ë Çձݰ­[º¸Åë Å©·Î¹Å(chromium)À» ÇÔÀ¯ÇÏ°í ÀÖ´Ù]

(7) ½ºÇÁ¸µ(spring)¿ë ¸Á°£-½Ç¸®ÄÜÇձݰ­[¸Á°£(manganese)¡¤½Ç¸®ÄÜ(silicon)¡¤Å©·Î¹Å(chromium)À̳ª ¸ô¸®ºêµ¥´½(molybdenum)À» ÇÔÀ¯]°ú ½ºÇÁ¸µ(spring)¿ë ±× ¹ÛÀÇ Çձݰ­

(8) ³»Ãæ°Ý¼º°ú ³»¸¶¸ð¼ºÀ̸ç, ³ôÀº ¸Á°£(manganese)ÇÔ·®À» °¡Áö°í ÀÖ´Â ºñÀÚ¼º Çձݰ­

(9) °í¼Óµµ°­(high speed steel) : ´Ù¸¥ Çձݿä¼Ò¿©ºÎ¿Í »ó°ü¾øÀÌ ¸ô¸®ºêµ¥´½(molyenum)¡¤ÅÖ½ºÅÙ(tungsten)°ú ¹Ù³ªµã(vanadium)ÀÇ 3°¡Áö Áß Àû¾îµµ 2°¡Áö ¿ø¼Ò¸¦ ÇÔÀ¯ÇÏ´Â °ÍÀ¸·Î ÇÕÇÑ ÇÔÀ¯·®ÀÌ Àü Áß·®ÀÇ 7% ÀÌ»óÀÌ°í ź¼ÒÀÇ ÇÔ·®ÀÌ 0.6% ÀÌ»ó, Å©·Î¹Å(chromium)ÀÇ ÇÔ·®ÀÌ 3%~6%ÀÎ Çձݰ­

(10) ºñº¯Çü(ުܨû¡ : non-distorting) °ø±¸°­ : ÀϹÝÀûÀ¸·Î Àü Áß·®ÀÇ 12% ÀÌ»ó Å©·Î¹Å(chromium)°ú 2% ÀÌ»óÀÇ Åº¼Ò¸¦ ÇÔÀ¯ÇÑ´Ù.

(11) ±× ¹ÛÀÇ °ø±¸¿ë Çձݰ­

(12) ¾Ë·ç¹Ì´½(aluminium), ´ÏÄÌ(nickel)°ú ÄÚ¹ßÆ®(cobalt)¸¦ ÇÔÀ¯ÇÏ°í ÀÖ´Â ¿µ±¸ ÀÚ¼®°­

(13) ¸Á°£(manganese)À̳ª ´ÏÄÌ(nickel) ÇÔ·®¿¡ ÀÇÇؼ­ Ư¼ºÀÌ °áÁ¤µÇ´Â ºñÀÚ¼º Çձݰ­(Á¦3Àý¿¡ Æ÷ÇԵǴ °ÍÀº Á¦¿ÜÇÑ´Ù)

(14) ¿øÀÚ·Î Á¶Á¤ºÀ(ðàïÚÜé : control rod)¿ë °­(³ôÀº ºØ¼Ò ÇÔ·®À» °¡Áø °Í)

ÀÌ Àý¿¡´Â ¶ÇÇÑ ÇÕ±ÝÀ̳ª ºñÇձݰ­ÀÇ Áß°ø(ñéÍö : hollow) µå¸±ºÀµµ Æ÷ÇÔÇÑ´Ù(Á¦7228È£)

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