gas metal-arc welding¿¡ »ç¿ëÇÏ´Â Â÷Æó(shield) °¡½º |
Â÷Æó °¡½º(shielding gas) |
Àû¿ëµÇ´Â ¿ëÁ¢ ±Ý¼Ó (¸ðÀç) |
ºÒÈ°¼º °¡½º¸¦ »ç¿ëÇÒ ¸ðÀç |
argon(¾Æ¸£°ï) |
»ç½Ç»óÀÇ ¸ðµç ±Ý¼Óµé |
helium(Çï·ý) |
¾Ë·ç¹Ì´½°ú µ¿ÇÕ±Ý-º¸´Ù ¸¹Àº ¿°ú ±â°øÀÇ ÃÖ¼ÒÈ |
75%Ar + 25%He ~ 25%Ar + 75%He |
Çï·ý°ú µ¿ÀÏ-¾ÈÁ¤µÈ ¾ÆÅ©¿Í ¼ÒÀ½°¨¼Ò |
helium + 10% argon |
high-nickel alloys (°í-´ÏÄÌÇÕ±Ý) |
Àý¾à °¡½º¸¦ »ç¿ëÇÒ ¸ðÀç |
nitrogen(Áú¼Ò) |
µ¿-¸Å¿ì °ÇÑ ¾ÆÅ© ¹ß»ý(ÀϹÝÀûÀ¸·Î »ç¿ëµÇÁö ¾ÊÀ½) |
argon + 25~30% nitrogen |
µ¿-°ÇÑ ¾ÆÅ©¹ß»ý/¼ø¼öÁú¼Ò »ç¿ë ½Ã º¸´Ù ¾ÆÅ©°ü¸®°¡ ¿ä±¸µÊ(µå¹°°Ô »ç¿ëµÈ´Ù.) |
»êÈ°¡½º¸¦ »ç¿ëÇÒ ¸ðÀç |
argon + 1~2% oxygen(»ê¼Ò) |
ź¼ÒÇձݰ/½ºÅ×Àη¹½º°µé |
argon + 3~5% oxygen(»ê¼Ò) |
ź¼Ò°,Çձݰú ½ºÅ×Àη¹½º°µé -»êÈö wire »ç¿ë |
argon + 5~10% oxygen(»ê¼Ò) |
°Ã¶-»êÈö wire »ç¿ë |
argon + 20~30% CO©÷(ź»ê°¡½º) |
°Ã¶-ÁÖ·Î short-circuiting arc (´Ü¶ô ¾ÆÅ©) »ç¿ë |
argon + 5% oxygen(»ê¼Ò) + CO©÷(ź»ê°¡½º) |
°Ã¶-»êÈö wire »ç¿ë |
carbon dioxide CO©÷(ź»ê°¡½º) |
¿¬°,ź¼Ò°-»êÈö wire »ç¿ë |
carbon dioxide + 3~10% oxygen(»ê¼Ò) |
°Ã¶-»êÈö wire »ç¿ë |
carbon dioxide + 20% oxygen(»ê¼Ò) |
°Ã¶µé |