{"id":16017,"date":"2026-09-09T06:46:06","date_gmt":"2026-09-09T06:46:06","guid":{"rendered":"https:\/\/www.hndfcrane.com\/?post_type=posts&#038;p=16017"},"modified":"2026-09-09T09:40:34","modified_gmt":"2026-09-09T09:40:34","slug":"crane-drum-web-to-shaft-weld-crack-cause-analysis","status":"publish","type":"posts","link":"https:\/\/www.hndfcrane.com\/ko\/posts\/crane-drum-web-to-shaft-weld-crack-cause-analysis\/","title":{"rendered":"\ud06c\ub808\uc778 \ub4dc\ub7fc \uc6e8\ube0c-\uc0e4\ud504\ud2b8 \uc6a9\uc811\ubd80 \uade0\uc5f4 \uc6d0\uc778 \ubd84\uc11d"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\ubaa9\ucc28<\/p><nav><ul><li><a href=\"#1-relationship-between-the-crane-drum-web-plate-hub-and-shaft\">1. \ud06c\ub808\uc778 \ub4dc\ub7fc, \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8, \ud5c8\ube0c \ubc0f \uc0e4\ud504\ud2b8 \uac04\uc758 \uad00\uacc4<\/a><\/li><li><a href=\"#2-why-the-crack-appears-near-the-drum-shaft-side\">2. \uade0\uc5f4\uc774 \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uce21\uba74 \uadfc\ucc98\uc5d0 \ub098\ud0c0\ub098\ub294 \uc774\uc720<\/a><ul><li><a href=\"#2-1-stress-concentration-from-a-sudden-section-change\">2.1 \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654\ub85c \uc778\ud55c \uc751\ub825 \uc9d1\uc911<\/a><\/li><li><a href=\"#2-2-cyclic-stress-and-impact-loading\">2.2 \uc8fc\uae30\uc801 \uc751\ub825 \ubc0f \ucda9\uaca9 \ud558\uc911<\/a><\/li><li><a href=\"#2-3-welding-residual-stress\">2.3 \uc6a9\uc811 \uc794\ub958 \uc751\ub825<\/a><\/li><\/ul><\/li><li><a href=\"#3-development-process-of-the-web-plate-crack\">3. \uc6f9 \ud50c\ub808\uc774\ud2b8 \uade0\uc5f4\uc758 \ubc1c\uc0dd \uacfc\uc815<\/a><\/li><li><a href=\"#4-common-causes-of-crane-drum-web-to-shaft-weld-cracking\">4. \ud06c\ub808\uc778 \ub4dc\ub7fc \uc6e8\ube0c-\uc0e4\ud504\ud2b8 \uc6a9\uc811\ubd80 \uade0\uc5f4\uc758 \uc77c\ubc18\uc801\uc778 \uc6d0\uc778<\/a><ul><li><a href=\"#4-1-structural-design-factors\">4.1 \uad6c\uc870 \uc124\uacc4 \uc694\uc18c<\/a><\/li><li><a href=\"#4-2-welding-quality-factors\">4.2 \uc6a9\uc811 \ud488\uc9c8 \uc694\uc18c<\/a><\/li><li><a href=\"#4-3-operating-loads-beyond-design-conditions\">4.3 \uc124\uacc4 \uc870\uac74\uc744 \ucd08\uacfc\ud558\ub294 \uc6b4\uc804 \ubd80\ud558<\/a><\/li><li><a href=\"#4-4-manufacturing-and-assembly-errors\">4.4 \uc81c\uc870 \ubc0f \uc870\ub9bd \uc624\ub958<\/a><\/li><li><a href=\"#4-5-corrosion-and-environmental-factors\">4.5 \ubd80\uc2dd \ubc0f \ud658\uacbd\uc801 \uc694\uc778<\/a><\/li><\/ul><\/li><li><a href=\"#5-inspection-repair-and-prevention-measures\">5. \uc810\uac80, \uc218\ub9ac \ubc0f \uc608\ubc29 \uc870\uce58<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>\ubcf8 \ud06c\ub808\uc778 \ub4dc\ub7fc \uc6a9\uc811\ubd80 \uade0\uc5f4 \ubd84\uc11d\uc740 \uc7a5\uae30\uac04 \uc0ac\uc6a9\ub41c \ud06c\ub808\uc778\uc5d0\uc11c \ub4dc\ub7fc \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\uc640 \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uc0ac\uc774\uc758 \uc6a9\uc811\ubd80\uc5d0 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud55c \uc0ac\ub840\ub97c \uc870\uc0ac\ud569\ub2c8\ub2e4. \uc721\uc548\uc73c\ub85c \ubcf4\uc774\ub294 \uc190\uc0c1\uc740 \uad6d\ubd80\uc801\uc778 \uae08\uc18d \ud53c\ub85c \ubb38\uc81c\ub85c \ubcf4\uc774\uc9c0\ub9cc, \uadfc\ubcf8\uc801\uc778 \uc6d0\uc778\uc740 \uad6c\uc870 \uc124\uacc4, \uc6a9\uc811 \uc808\ucc28, \uc7ac\ub8cc \uc0c1\ud0dc, \uc751\ub825 \uc804\ub2ec, \uc81c\uc870 \ubc0f \uc870\ub9bd \ud488\uc9c8, \uadf8\ub9ac\uace0 \uc6b4\uc804 \uc870\uac74\uacfc \uad00\ub828\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"720\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Cracking-of-the-weld-between-the-drum-web-and-the-drum-shaft.jpg\" alt=\"\" class=\"wp-image-16020\"\/><figcaption class=\"wp-element-caption\">\ud06c\ub808\uc778 \ub4dc\ub7fc \uc6e8\ube0c-\uc0e4\ud504\ud2b8 \uc6a9\uc811\ubd80 \uade0\uc5f4 \uc0ac\ub840<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1477\" height=\"1065\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Schematic-diagram-of-the-cracking-location-in-the-weld-between-the-drum-web-and-the-drum-shaft.png\" alt=\"\" class=\"wp-image-16021\"\/><figcaption class=\"wp-element-caption\">\ub4dc\ub7fc \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\uc640 \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uc6a9\uc811\ubd80\uc758 \uade0\uc5f4 \uc704\uce58<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-relationship-between-the-crane-drum-web-plate-hub-and-shaft\">1. \ud06c\ub808\uc778 \ub4dc\ub7fc, \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8, \ud5c8\ube0c \ubc0f \uc0e4\ud504\ud2b8 \uac04\uc758 \uad00\uacc4<\/h2>\n\n\n\n<p>\ub9ac\ud504\ud305 \uc7a5\ube44\uc5d0\uc11c \ub4dc\ub7fc\uc740 \uc640\uc774\uc5b4 \ub85c\ud504\ub97c \uac10\uace0 \ud558\uc911\uc744 \ub4e4\uc5b4 \uc62c\ub9ac\uac70\ub098 \ub2f9\uae30\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \ud575\uc2ec \ub3d9\ub825 \uc804\ub2ec \ubd80\ud488\uc785\ub2c8\ub2e4. \ub4dc\ub7fc \ubcf8\uccb4\ub294 \uc640\uc774\uc5b4 \ub85c\ud504\ub97c \uc9c0\uc9c0\ud558\uba70, \ubcf8\uccb4\uc758 \uc591\ucabd \ub05d\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud5c8\ube0c \ub610\ub294 \uc0e4\ud504\ud2b8\uc5d0 \uc5f0\uacb0\ud558\ub294 \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\uac00 \ubc30\uce58\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc77c\ubc18\uc801\uc778 \uad6c\uc870\uc5d0\uc11c\ub294 \ud5c8\ube0c\uac00 \uc6f9 \ud50c\ub808\uc774\ud2b8 \uc911\uc559\uc5d0 \uc6a9\uc811\ub429\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \ud5c8\ube0c\ub294 \ud0a4\ub97c \ud1b5\ud574 \ub4dc\ub7fc \uc0e4\ud504\ud2b8\uc5d0 \uc5f0\uacb0\ub418\uace0 \uc0e4\ud504\ud2b8\ub294 \ubca0\uc5b4\ub9c1\uc73c\ub85c \uc9c0\uc9c0\ub429\ub2c8\ub2e4. \uc774 \uacbd\uc6b0\uc5d0\ub294 \uc6f9 \ud50c\ub808\uc774\ud2b8\uac00 \ub4dc\ub7fc \uc0e4\ud504\ud2b8\uc5d0 \uc9c1\uc811 \uc6a9\uc811\ub418\uba70 \ub4dc\ub7fc \uc0e4\ud504\ud2b8\ub294 \uae34 \uc0e4\ud504\ud2b8\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ub530\ub77c\uc11c \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\ub294 \ub2e8\uc21c\ud788 \uc5f0\uacb0\ud310\uc758 \uc5ed\ud560\ub9cc \ud558\ub294 \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4. \ub4dc\ub7fc \uc258\uacfc \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uc0ac\uc774\uc5d0\uc11c \ud1a0\ud06c\uc640 \ubc18\uacbd \ubc29\ud5a5 \ud798\uc744 \uc804\ub2ec\ud558\ub294 \uc5ed\ud560\ub3c4 \ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ub4dc\ub7fc \uace0\uc7a5 \uc0ac\ub840\uc5d0\uc11c\ub294 \ud53c\ub85c \uade0\uc5f4\uc774 \uad50\uccb4 \uc870\uac74\uc73c\ub85c \uc790\uc8fc \uc5b8\uae09\ub418\uc9c0\ub9cc, \ubcf8 \uc5f0\uad6c\uc5d0\uc11c\ub294 \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\uc640 \uc0e4\ud504\ud2b8 \uc0ac\uc774\uc758 \uc6a9\uc811 \ubd80\uc704 \uc8fc\ubcc0\uc5d0\uc11c \uade0\uc5f4\uc774 \uc2dc\uc791\ub418\ub294 \uc6d0\uc778\uc744 \ubcf4\ub2e4 \uad6c\uccb4\uc801\uc73c\ub85c \uc0b4\ud3b4\ubd05\ub2c8\ub2e4. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-why-the-crack-appears-near-the-drum-shaft-side\">2. \uade0\uc5f4\uc774 \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uce21\uba74 \uadfc\ucc98\uc5d0 \ub098\ud0c0\ub098\ub294 \uc774\uc720<\/h2>\n\n\n\n<p>\uae30\uacc4\uc801 \uad00\uc810\uc5d0\uc11c \ub4dc\ub7fc \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\ub294 \ube44\ud2c0\ub9bc, \uad7d\ud798, \uc778\uc7a5-\uc555\ucd95 \ubc0f \uba74\ub0b4 \uc804\ub2e8\ub825\uc744 \ubc1b\ub294 \uc587\uc740 \ud310\uc785\ub2c8\ub2e4. \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uadfc\ucc98\uc5d0\uc11c\ub294 \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654, \uc6a9\uc811\ubd80\uc758 \uc601\ud5a5, \ubc18\ubcf5 \ud558\uc911 \ub4f1 \uc5ec\ub7ec \uac00\uc9c0 \ubd88\ub9ac\ud55c \uc870\uac74\uc774 \ub3d9\uc2dc\uc5d0 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-1-stress-concentration-from-a-sudden-section-change\">2.1 \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654\ub85c \uc778\ud55c \uc751\ub825 \uc9d1\uc911<\/h3>\n\n\n\n<p>\ub4dc\ub7fc \uc0e4\ud504\ud2b8\uc5d0 \uac00\uae4c\uc6b4 \uc601\uc5ed\uc5d0\uc11c \uad6c\uc870\ub294 \ube44\uad50\uc801 \ub450\uaebc\uc6b4 \uc0e4\ud504\ud2b8\uc5d0\uc11c \uc587\uc740 \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\ub85c \uc804\ud658\ub429\ub2c8\ub2e4. \ucd95 \ubc29\ud5a5 \uc704\uce58 \uc870\uc815 \ubc0f \uc6a9\uc811\uc744 \uc704\ud574 \ud574\ub2f9 \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8 \uc704\uce58\uc5d0 \uc0e4\ud504\ud2b8 \uc204\ub354\uac00 \uc885\uc885 \uc124\uce58\ub429\ub2c8\ub2e4. \uc804\ud658 \ubc18\uacbd\uc774 \ub108\ubb34 \uc791\uac70\ub098 \uc804\ud658\uc774 \ub9e4\ub044\ub7fd\uc9c0 \uc54a\uc73c\uba74 \uc751\ub825 \uc9d1\uc911\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc5b8\ub354\ucef7\uc774\ub098 \ubd88\uc644\uc804 \uc6a9\uc785\uacfc \uac19\uc740 \uc6a9\uc811 \uacb0\ud568 \ub610\ud55c \uade0\uc5f4 \ubc1c\uc0dd \uc6d0\uc778\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-2-cyclic-stress-and-impact-loading\">2.2 \uc8fc\uae30\uc801 \uc751\ub825 \ubc0f \ucda9\uaca9 \ud558\uc911<\/h3>\n\n\n\n<p>\ub4dc\ub7fc\uc774 \uc791\ub3d9\ud560 \ub54c, \uc640\uc774\uc5b4 \ub85c\ud504 \uac10\uae30\uc5d0 \uc758\ud574 \ubc1c\uc0dd\ud558\ub294 \uc778\uc7a5\ub825\uc740 \ub4dc\ub7fc \uc258\uc744 \ud1b5\ud574 \uc6f9 \ud50c\ub808\uc774\ud2b8\ub85c \uc804\ub2ec\ub41c \ub2e4\uc74c \ub4dc\ub7fc \uc0e4\ud504\ud2b8\ub85c \uc804\ub2ec\ub429\ub2c8\ub2e4. \uac01 \uac10\uae30 \ubc0f \ub4e4\uc5b4\uc62c\ub9ac\uae30 \ub3d9\uc791\uc740 \uc774 \uc601\uc5ed\uc5d0 \ubc18\ubcf5\uc801\uc778 \ud558\uc911\uc744 \uac00\ud558\uba70, \uc774\ub294 \uad6d\ubd80\uc801\uc778 \ucda9\uaca9 \ud558\uc911\uacfc \uacb0\ud569\ub41c \uc800\uc8fc\uae30 \ud53c\ub85c\ub85c \uc791\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-3-welding-residual-stress\">2.3 \uc6a9\uc811 \uc794\ub958 \uc751\ub825<\/h3>\n\n\n\n<p>\uc6f9 \ud50c\ub808\uc774\ud2b8\uc640 \ub4dc\ub7fc \uc0e4\ud504\ud2b8\ub97c \uc6a9\uc811\ud560 \ub54c \uc6a9\uc811 \ubd80\uc704\ub294 \uad6d\ubd80\uc801\uc778 \uace0\uc628\uacfc \ub0c9\uac01 \uc218\ucd95\uc744 \uacaa\uac8c \ub429\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \uc6a9\uc811 \uad6c\uc870\ubb3c\uc744 \uc644\uc804\ud788 \uc5b4\ub2d0\ub9c1\ud558\uac70\ub098 \uc751\ub825 \uc81c\uac70 \ucc98\ub9ac\ub97c \ud558\uc9c0 \uc54a\uc73c\uba74 \uc6a9\uc811 \ubd80\uc704 \uc8fc\ubcc0\uc5d0 \uc794\ub958 \uc778\uc7a5 \uc751\ub825\uc774 \ub0a8\uac8c \ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc794\ub958 \uc778\uc7a5 \uc751\ub825\uc5d0 \uc791\ub3d9 \ud558\uc911\uc774 \ub354\ud574\uc9c0\uba74 \uade0\uc5f4 \ubc1c\uc0dd \uac00\ub2a5\uc131\uc774 \ub192\uc544\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-development-process-of-the-web-plate-crack\">3. \uc6f9 \ud50c\ub808\uc774\ud2b8 \uade0\uc5f4\uc758 \ubc1c\uc0dd \uacfc\uc815<\/h2>\n\n\n\n<p>\uade0\uc5f4 \ubc1c\uc0dd\uc740 \uc138 \ub2e8\uacc4\ub85c \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p>\uccab \ubc88\uc9f8 \ub2e8\uacc4\ub294 \uade0\uc5f4 \ubc1c\uc0dd\uc785\ub2c8\ub2e4. \uc6a9\uc811 \ubfcc\ub9ac \ub610\ub294 \uc804\ud658 \ubc18\uacbd\uc5d0\uc11c \ubbf8\uc138\ud55c \uacb0\ud568\uc774 \uc6a9\uc811 \uc794\ub958 \uc751\ub825\uacfc \uc791\uc5c5 \uc751\ub825\uc758 \ubcf5\ud569\uc801\uc778 \uc791\uc6a9\uc73c\ub85c \uc778\ud574 \uade0\uc5f4 \ubc1c\uc0dd\uc6d0\uc73c\ub85c \ubc1c\uc804\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ub450 \ubc88\uc9f8 \ub2e8\uacc4\ub294 \uade0\uc5f4 \uc804\ud30c\uc785\ub2c8\ub2e4. \uac01 \uc778\uc591 \uc791\uc5c5 \ub3d9\uc548 \ud558\uc911\uc740 \ub3d9\uc77c\ud55c \uc804\ub2ec \uacbd\ub85c\ub97c \ub530\ub77c \uc774\ub3d9\ud558\uba70 \ucd5c\ub300 \uc751\ub825\uc774 \ubc18\ubcf5\uc801\uc73c\ub85c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uade0\uc5f4\uc740 \uc7ac\ub8cc\uc758 \uacb0\uc815\ub9bd\uacc4\ub97c \ub530\ub77c \uc810\uc9c4\uc801\uc73c\ub85c \uc804\ud30c\ub429\ub2c8\ub2e4. \ud30c\uad34\uba74\uc740 \ubc29\uc0ac\ud615 \ub610\ub294 \uaecd\uc9c8 \ubaa8\uc591\uc758 \ud2b9\uc9d5\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc138 \ubc88\uc9f8 \ub2e8\uacc4\ub294 \ud30c\uad34\uc785\ub2c8\ub2e4. \ub0a8\uc740 \uc720\ud6a8 \ub2e8\uba74\uc801\uc774 \ub354 \uc774\uc0c1 \ud558\uc911\uc744 \uc9c0\ud0f1\ud558\uae30\uc5d0 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc744 \ub54c, \uac11\uc791\uc2a4\ub7ec\uc6b4 \ucde8\uc131 \ud30c\uad34\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\uba70, \uc774 \uacfc\uc815\uc5d0\uc11c \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\uac00 \ucc22\uc5b4\uc9c0\uac70\ub098 \ub4dc\ub7fc \uc0e4\ud504\ud2b8\uc5d0\uc11c \ubd84\ub9ac\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-common-causes-of-crane-drum-web-to-shaft-weld-cracking\">4. \ud06c\ub808\uc778 \ub4dc\ub7fc \uc6e8\ube0c-\uc0e4\ud504\ud2b8 \uc6a9\uc811\ubd80 \uade0\uc5f4\uc758 \uc77c\ubc18\uc801\uc778 \uc6d0\uc778<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-1-structural-design-factors\">4.1 \uad6c\uc870 \uc124\uacc4 \uc694\uc18c<\/h3>\n\n\n\n<p>\uc6f9 \ud50c\ub808\uc774\ud2b8\uc640 \ud5c8\ube0c \ub610\ub294 \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uc0ac\uc774\uc758 \uc5f0\uacb0 \ubd80\uc704\uc5d0 \uc801\uc808\ud55c \uace1\ub960 \ubc18\uacbd\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc73c\uba74 \uc751\ub825\uc774 \uae09\uaca9\ud558\uac8c \ubcc0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6f9 \ud50c\ub808\uc774\ud2b8 \ub450\uaed8\uac00 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc73c\uba74 \ud53c\ub85c \uac15\ub3c4 \uc5ec\uc720\ub3c4 \ubd80\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6a9\uc811 \uc704\uce58\ub97c \uc798\ubabb \uc120\ud0dd\ud558\uba74 \uc774\ub7ec\ud55c \uc704\ud5d8\uc774 \ub354\uc6b1 \ucee4\uc9c8 \uc218 \uc788\ub294\ub370, \ud2b9\ud788 \uc6a9\uc811 \ubd80\uc704\uac00 \uc751\ub825\uc774 \ub0ae\uc740 \uc601\uc5ed\uc774 \uc544\ub2cc \ub192\uc740 \uc601\uc5ed\uc5d0 \uc704\uce58\ud560 \uacbd\uc6b0 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-2-welding-quality-factors\">4.2 \uc6a9\uc811 \ud488\uc9c8 \uc694\uc18c<\/h3>\n\n\n\n<p>\uc6a9\uc811 \uacb0\ud568\uc5d0\ub294 \ubd88\uc644\uc804 \uc6a9\uc785, \uc2ac\ub798\uadf8 \ud63c\uc785, \uae30\uacf5, \uc5b8\ub354\ucef7, \uc6a9\uc811 \ud749\ud130 \ub4f1\uc774 \ud754\ud788 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \ucd08\uc74c\ud30c \uac80\uc0ac\ub098 \ubc29\uc0ac\uc120 \uac80\uc0ac\uc640 \uac19\uc740 \ube44\ud30c\uad34 \uac80\uc0ac\ub97c \uc2e4\uc2dc\ud558\uc9c0 \uc54a\uc73c\uba74 \uc228\uaca8\uc9c4 \uacb0\ud568\uc774 \uad6c\uc870\ubb3c\uc5d0 \uc624\ub7ab\ub3d9\uc548 \ub0a8\uc544 \uc788\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ucd5c\uc801\ud654\ub418\uc9c0 \uc54a\uc740 \uc6a9\uc811 \ub9e4\uac1c\ubcc0\uc218\uc640 \ubd88\ucda9\ubd84\ud55c \uc6a9\uc811 \ud6c4 \uc751\ub825 \uc81c\uac70 \ub610\ud55c \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub300\ud615 \ub4dc\ub7fc \uad6c\uc870\ubb3c\uc758 \uacbd\uc6b0, \uc751\ub825 \uc81c\uac70\ub97c \uc704\ud55c \uc5f4\ucc98\ub9ac\uac00 \uc5b4\ub824\uc6b8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc9c4\ub3d9 \uc751\ub825 \uc81c\uac70 \ub610\ud55c \uc644\ubcbd\ud558\uac8c \uc801\uc6a9\ud558\uae30 \uc5b4\ub824\uc6b8 \uc218 \uc788\uc73c\uba70, \uc790\uc5f0 \uc2dc\ud6a8 \ub610\ub294 \uae30\ud0c0 \uc2dc\ud6a8 \ucc98\ub9ac\ub294 \ud504\ub85c\uc81d\ud2b8 \uc77c\uc815 \uc694\uad6c \uc0ac\ud56d\uc758 \uc601\ud5a5\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-3-operating-loads-beyond-design-conditions\">4.3 \uc124\uacc4 \uc870\uac74\uc744 \ucd08\uacfc\ud558\ub294 \uc6b4\uc804 \ubd80\ud558<\/h3>\n\n\n\n<p>\uc815\uaca9 \ud558\uc911\uc744 \ucd08\uacfc\ud558\ub294 \uc7a5\uae30\uac04 \uacfc\ubd80\ud558\ub294 \uad6c\uc870\ubb3c\uc758 \ud53c\ub85c \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9ac\ud504\ud305 \uc911 \uc7a6\uc740 \uc2dc\ub3d9 \ubc0f \uc81c\ub3d9\uc740 \ud070 \ucda9\uaca9 \ud558\uc911\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc640\uc774\uc5b4 \ub85c\ud504\uac00 \ub4dc\ub7fc\uc5d0 \ubd80\uc801\uc808\ud558\uac8c \ubc30\uce58\ub418\uba74 \ub4dc\ub7fc\uc5d0 \uac00\ud574\uc9c0\ub294 \ud798\uc758 \ubd84\ud3ec\uac00 \ubd88\uade0\ub4f1\ud574\uc9c0\uace0 \uad6d\ubd80\uc801\uc778 \uc751\ub825\uc774 \uc124\uacc4\uac12\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc544\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-4-manufacturing-and-assembly-errors\">4.4 \uc81c\uc870 \ubc0f \uc870\ub9bd \uc624\ub958<\/h3>\n\n\n\n<p>\uc6f9 \ud50c\ub808\uc774\ud2b8 \ub0b4\ubd80 \uad6c\uba4d\uacfc \uc0e4\ud504\ud2b8 \uc0ac\uc774\uc758 \uacb0\ud569\uc774 \ub108\ubb34 \uaf49 \uc870\uc774\uac70\ub098 \ub108\ubb34 \ud5d0\uac70\uc6b0\uba74 \ucd08\uae30 \uad6d\ubd80 \uc751\ub825\uc774 \ubd88\uade0\ub4f1\ud574\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc644\uc804\ud788 \ud574\uc18c\ub418\uc9c0 \uc54a\uc740 \uc870\ub9bd \uc751\ub825\uc774 \ub098\uc911\uc5d0 \uc791\ub3d9 \uc751\ub825\uacfc \uacb0\ud569\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-5-corrosion-and-environmental-factors\">4.5 \ubd80\uc2dd \ubc0f \ud658\uacbd\uc801 \uc694\uc778<\/h3>\n\n\n\n<p>\ub4dc\ub7fc\uc774 \uc2b5\ud558\uac70\ub098 \ubd80\uc2dd\uc131 \ud658\uacbd\uc5d0 \uc7a5\uae30\uac04 \ub178\ucd9c\ub418\uba74 \uc6a9\uc811 \ubd80\uc704\uac00 \ubd80\uc2dd\ub418\uae30 \uc26c\uc6cc\uc9d1\ub2c8\ub2e4. \ubd80\uc2dd\ub41c \ubd80\uc704\ub294 \ubbf8\uc138 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uae30 \uc26c\uc6b4 \uacf3\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-inspection-repair-and-prevention-measures\">5. \uc810\uac80, \uc218\ub9ac \ubc0f \uc608\ubc29 \uc870\uce58<\/h2>\n\n\n\n<p>\uae30\uc874 \uc7a5\ube44\uc758 \uacbd\uc6b0, \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\uc640 \ub4dc\ub7fc \uc0e4\ud504\ud2b8 \uc0ac\uc774\uc758 \uc6a9\uc811 \ubd80\uc704 \uc8fc\ubcc0\uc5d0 \uc815\uae30\uc801\uc73c\ub85c \uc790\ubd84 \ud0d0\uc0c1 \uac80\uc0ac \ub610\ub294 \ucd08\uc74c\ud30c \uac80\uc0ac\ub97c \uc2e4\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uade0\uc5f4\uc774 \ubc1c\uacac\ub418\uba74 \uc6e8\ube0c \ud50c\ub808\uc774\ud2b8\ub97c \uc6a9\uc811\ud558\uc5ec \uc218\ub9ac\ud558\uac70\ub098 \uc989\uc2dc \uad50\uccb4\ud574\uc57c \ud558\uba70, \ud3b8\uc2ec \ud558\uc911\uc774 \ubc1c\uc0dd\ud558\uc9c0 \uc54a\ub3c4\ub85d \uc640\uc774\uc5b4 \ub85c\ud504 \ubc30\uce58\ub97c \uc810\uac80\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc0c8\ub85c\uc6b4 \ud06c\ub808\uc778 \ub4dc\ub7fc \uc124\uacc4 \ub610\ub294 \uc81c\uc870 \uc2dc\uc5d0\ub294 \uc804\ud658 \ubc18\uacbd\uc744 \ucd5c\uc801\ud654\ud558\uace0 \uc6a9\uc811 \uc704\uce58\ub97c \ucd5c\ub300 \uc751\ub825 \uc601\uc5ed\uc744 \ucd5c\ub300\ud55c \ud53c\ud558\ub3c4\ub85d \ubc30\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. \uc6a9\uc811 \uc808\ucc28\ub294 \uc5c4\uaca9\ud558\uac8c \uad00\ub9ac\ud574\uc57c \ud558\uba70, \uc794\ub958 \uc751\ub825\uc744 \uc904\uc774\uae30 \uc704\ud574 \ub2e4\uc911 \ud328\uc2a4 \uc6a9\uc811 \ubc0f \ub300\uce6d \uc6a9\uc811\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uace0, \uc2e4\uc81c \uc870\uac74\uc5d0 \ub530\ub77c \uc9c4\ub3d9 \uc2dc\ud6a8 \ub610\ub294 \uc790\uc5f0 \uc2dc\ud6a8\ub97c \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc6b4\uc804 \uad00\ub9ac \uce21\uba74\uc5d0\uc11c\ub294 \uc7a5\uae30\uac04 \uacfc\ubd80\ud558 \ubc0f \uc7a6\uc740 \uc2dc\ub3d9\uacfc \uc81c\ub3d9\uc744 \ud53c\ud574\uc57c \ud569\ub2c8\ub2e4. \uc640\uc774\uc5b4 \ub85c\ud504 \ubc30\uce58\ub294 \uad00\ub828 \uaddc\uc815\uc744 \uc900\uc218\ud574\uc57c \ud558\uba70, \ub9c8\ubaa8\ub41c \uc640\uc774\uc5b4 \ub85c\ud504\ub294 \uc815\uae30\uc801\uc73c\ub85c \uad50\uccb4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ud06c\ub808\uc778 \ub4dc\ub7fc \uc6a9\uc811\ubd80 \uade0\uc5f4\uc740 \ub300\uac1c \ub2e8\uc77c \uc694\uc778\uc73c\ub85c \ubc1c\uc0dd\ud558\ub294 \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uad6c\uc870, \uc6a9\uc811, \ud558\uc911, \uc870\ub9bd \ubc0f \ud658\uacbd\uc5d0 \ub300\ud55c \ub2e8\uacc4\ubcc4 \uac80\ud1a0\ub97c \ud1b5\ud574 \uade0\uc5f4\uc758 \uc6d0\uc778\uc744 \uaddc\uba85\ud558\uace0 \uc2e4\uc81c \ud604\uc7a5 \uc870\uac74\uc5d0 \ub9de\ub294 \uc2dc\uc815 \uc870\uce58\ub97c \uc120\ud0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"This crane drum weld crack analysis examines a case where a long-service crane developed cracking at the weld between the drum web plate and the drum shaft. Although the visible damage appears to be a local metal fatigue problem, the underlying causes may involve structural design, welding procedure, material condition, stress transfer, manufacturing and assembly [&hellip;]","protected":false},"featured_media":16020,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[197],"posts_tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/xmxposts\/16017"}],"collection":[{"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":10,"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/xmxposts\/16017\/revisions"}],"predecessor-version":[{"id":16033,"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/xmxposts\/16017\/revisions\/16033"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/media\/16020"}],"wp:attachment":[{"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/media?parent=16017"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/posts_category?post=16017"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/ko\/wp-json\/wp\/v2\/posts_tag?post=16017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}