Fourth, what are the problems in the use of air conditioning copper pipe?How\u00a0to\u00a0solve\u00a0it?\u00a0 1,\u00a0copper\u00a0pipe\u00a0leakage:\u00a0copper\u00a0pipe\u00a0leakage\u00a0is\u00a0the fatal\u00a0defect\u00a0of\u00a0air\u00a0conditioning, \u00a0once\u00a0the\u00a0leakage \u00a0of air\u00a0conditioning refrigerant\u00a0will\u00a0all\u00a0overflow,\u00a0air\u00a0conditioning\u00a0due\u00a0to\u00a0the\u00a0lack\u00a0of\u00a0heat transfer \u00a0medium, \u00a0and make \u00a0the\u00a0air\u00a0conditioner\u00a0failure.\u00a0For\u00a0the\u00a0leakage problem\u00a0of\u00a0copper \u00a0pipe\u00a0is\u00a0more\u00a0complex, \u00a0the\u00a0following often\u00a0appear\u00a0in\u00a0the leakage reasons are elaborated.<\/p>\n\n\n\n

(1) Manufacturing reasons: \u2460\u00a0eddy current detection leakage. GB specifies\u00a0that\u00a0the\u00a0copper\u00a0pipe\u00a0must\u00a0be\u00a0100%\u00a0eddy\u00a0current\u00a0detection,\u00a0and specifies the diameter of the artificial defect (through hole) on the sample\u00a0tube\u00a0used\u00a0for\u00a0checking \u00a0the\u00a0flaw\u00a0detector, \u00a0in\u00a0order\u00a0to ensure\u00a0the sensitivity of eddy current detection and prevent excessive defect detection. This requirement can be fully guaranteed in the regular large-scale copper pipe factory, because the flaw detection is online testing,\u00a0this\u00a0online\u00a0eddy\u00a0current\u00a0testing\u00a0ensures\u00a0that\u00a0all\u00a0the\u00a0lengths of\u00a0the pipe\u00a0have\u00a0been\u00a0tested\u00a0by\u00a0eddy\u00a0current\u00a0testing,\u00a0and\u00a0it\u00a0is\u00a0100%\u00a0flaw detection. Some copper pipe factories are not like this, or do not go through eddy current testing, or use low-standard eddy current flaw detector\u00a0sampling.\u00a0In\u00a0this\u00a0way,\u00a0the\u00a0copper\u00a0pipe\u00a0has\u00a0exceeded\u00a0the\u00a0defect detection \u00a0or\u00a0not\u00a0detected, resulting\u00a0in\u00a0air\u00a0conditioning\u00a0leakage\u00a0when\u00a0the user\u00a0is\u00a0using; \u00a0\u2461\u00a0eddy\u00a0current\u00a0testing\u00a0detected\u00a0defects, but\u00a0the\u00a0surface of\u00a0the\u00a0copper\u00a0pipe\u00a0was\u00a0not\u00a0marked\u00a0or\u00a0marked\u00a0inaccurate\u00a0and\u00a0unclear.\u00a0In the production process of copper pipe, the defects detected by eddy current\u00a0testing\u00a0require \u00a0ink\u00a0to\u00a0cover\u00a0the\u00a0defects exceeding\u00a0the\u00a0standard, so\u00a0that\u00a0the\u00a0user\u00a0can\u00a0remove\u00a0the\u00a0defective\u00a0copper\u00a0pipe\u00a0in\u00a0the\u00a0process\u00a0of use.\u00a0However,\u00a0due\u00a0to the\u00a0manufacturer\u00a0in the\u00a0production\u00a0process\u00a0of\u00a0the selection\u00a0of\u00a0ink\u00a0adhesion is\u00a0not\u00a0enough, ink-jet\u00a0gun\u00a0adjustment\u00a0is\u00a0not appropriate, drying is not complete, ink composition encountered high temperature\u00a0fading\u00a0and\u00a0other\u00a0reasons,\u00a0resulting\u00a0in\u00a0the\u00a0user in\u00a0the\u00a0use of\u00a0the\u00a0process can\u00a0not\u00a0be\u00a0eddy\u00a0current\u00a0detection\u00a0of\u00a0the\u00a0defects\u00a0picked out,\u00a0once\u00a0the\u00a0defective \u00a0copper\u00a0pipe \u00a0used in\u00a0the\u00a0air\u00a0conditioner\u00a0is\u00a0bound to\u00a0cause\u00a0leakage.\u00a0(2)\u00a0Reasons\u00a0for\u00a0user\u00a0use:\u00a0\u2460\u00a0Misuse\u00a0of\u00a0the\u00a0defect\u00a0pipe detected\u00a0by\u00a0eddy\u00a0current\u00a0detection.\u00a0Under\u00a0normal\u00a0copper\u00a0pipe\u00a0production conditions, \u00a0the\u00a0eddy \u00a0current detection\u00a0of\u00a0copper\u00a0pipe\u00a0not\u00a0only\u00a0marks\u00a0the number\u00a0of\u00a0damage \u00a0points\u00a0on\u00a0each\u00a0coil, \u00a0but\u00a0also\u00a0paints black\u00a0marks\u00a0on\u00a0the parts\u00a0of\u00a0the\u00a0damage\u00a0points,\u00a0so\u00a0that\u00a0users\u00a0can\u00a0identify\u00a0and\u00a0pick\u00a0out\u00a0this \"black tube\" in use. Air conditioning and refrigeration enterprises should\u00a0make \u00a0it\u00a0clear\u00a0to\u00a0the \u00a0operators,\u00a0especially the\u00a0newly\u00a0posted\u00a0workers, in\u00a0order\u00a0to\u00a0prevent\u00a0this\u00a0pipe\u00a0with\u00a0injuries\u00a0from\u00a0being\u00a0installed\u00a0on\u00a0the air conditioning\u00a0and\u00a0refrigeration\u00a0device.\u00a0We\u00a0have\u00a0found\u00a0this\u00a0problem\u00a0many times\u00a0when\u00a0we\u00a0have\u00a0in-depth\u00a0user\u00a0service,\u00a0some\u00a0workers\u00a0ask\u00a0us\u00a0how\u00a0the\u00a0black on\u00a0the\u00a0pipe\u00a0is going on,\u00a0and\u00a0some are \u00a0 anatomizing unqualified\u00a0products precisely\u00a0because\u00a0the\u00a0\"black\u00a0tube\"\u00a0is\u00a0installed\u00a0on\u00a0the\u00a0product\u00a0causing<\/p>\n\n\n\n

air\u00a0conditioning\u00a0refrigeration\u00a0device\u00a0leakage.\u00a0\u2461\u00a0Processing\u00a0problems. In\u00a0the\u00a0process \u00a0of\u00a0forming \u00a0two units ,\u00a0the\u00a0air\u00a0conditioning\u00a0supervisor\u00a0must go\u00a0through \u00a0the\u00a0process\u00a0of\u00a0bending, \u00a0expanding,\u00a0flaring, welding\u00a0and\u00a0other links.\u00a0\u2462\u00a0Leakage\u00a0caused\u00a0by\u00a0poor\u00a0welding.\u00a0After\u00a0the\u00a0copper\u00a0pipe\u00a0is\u00a0pierced into \u00a0the aluminum\u00a0foil\u00a0with\u00a0holes,\u00a0the\u00a0pipe\u00a0and\u00a0the\u00a0pipe\u00a0to\u00a0be\u00a0connected, need\u00a0to\u00a0use\u00a0a\u00a0small \u00a0elbow\u00a0connection, in\u00a0order\u00a0to\u00a0connect\u00a0firmly,\u00a0in\u00a0the production\u00a0process, \u00a0the\u00a0small\u00a0elbow \u00a0and\u00a0the\u00a0copper\u00a0pipe welded\u00a0together, welding\u00a0methods\u00a0are\u00a0divided\u00a0into\u00a0manual\u00a0and\u00a0automatic\u00a0two\u00a0kinds,\u00a0welding due\u00a0to\u00a0the\u00a0quality\u00a0of\u00a0solder,\u00a0copper\u00a0pipe\u00a0expansion,\u00a0welding\u00a0surface\u00a0has foreign bodies and other reasons, resulting in welding is not real, forming\u00a0virtual\u00a0welding, \u00a0Resulting\u00a0in\u00a0refrigerant\u00a0leakage. \u00a02, copper\u00a0pipe cracking:\u00a0the\u00a0cracking\u00a0of\u00a0copper\u00a0pipe\u00a0is\u00a0mainly\u00a0concentrated\u00a0in\u00a0the\u00a0copper pipe expansion\u00a0and\u00a0expansion\u00a0process.\u00a0The\u00a0cracking\u00a0situation\u00a0is\u00a0shown\u00a0in Figure\u00a01.\u00a0In\u00a0the\u00a0production\u00a0 of \u00a0two units,\u00a0copper\u00a0pipe\u00a0expansion\u00a0and\u00a0flaring is\u00a0a\u00a0continuous\u00a0process, \u00a0often\u00a0compounded \u00a0to\u00a0a\u00a0process to complete.\u00a0There are\u00a0many\u00a0reasons\u00a0for\u00a0the\u00a0cracking\u00a0of\u00a0copper\u00a0pipe,\u00a0and\u00a0the\u00a0main\u00a0reasons are \u00a0as follows\u00a0: \u2460\u00a0The\u00a0reason\u00a0of\u00a0the\u00a0quality\u00a0of\u00a0copper\u00a0pipe\u00a0itself.\u00a0The reasons for the quality of the copper pipe itself can be divided into external\u00a0surface\u00a0defects,\u00a0internal\u00a0surface\u00a0scratches,\u00a0internal\u00a0surface oxidation \u00a0and so\u00a0on. Copper\u00a0pipe\u00a0in\u00a0the\u00a0expansion\u00a0of\u00a0the\u00a0pipe,\u00a0the\u00a0cold processing\u00a0deformation, \u00a0the\u00a0surface \u00a0is stretched\u00a0by\u00a0tensile\u00a0stress,\u00a0when the\u00a0copper \u00a0pipe\u00a0surface\u00a0has \u00a0deep\u00a0scars, \u00a0the\u00a0copper \u00a0pipe\u00a0surface can\u00a0not withstand\u00a0the\u00a0surface\u00a0tensile\u00a0stress,\u00a0the\u00a0formation\u00a0of\u00a0tensile\u00a0fracture phenomenon, \u00a0that\u00a0is, \u00a0we see\u00a0the\u00a0copper\u00a0pipe\u00a0surface\u00a0cracking.\u00a0The\u00a0cracking mechanism caused by scratches on the inner surface of copper pipe is similar\u00a0to\u00a0the\u00a0cracking\u00a0mechanism\u00a0caused\u00a0by\u00a0scratches\u00a0on\u00a0the\u00a0outer\u00a0surface. When\u00a0the\u00a0inner\u00a0surface\u00a0of\u00a0the\u00a0copper\u00a0pipe\u00a0is\u00a0oxidized,\u00a0the\u00a0friction\u00a0force on\u00a0the \u00a0surface\u00a0 of\u00a0the \u00a0copper pipe is\u00a0different\u00a0from\u00a0that\u00a0on\u00a0the\u00a0surface of the copper pipe without copper oxide when the pipe is expanded, resulting\u00a0in\u00a0the\u00a0length\u00a0of\u00a0the\u00a0pier\u00a0of\u00a0the\u00a0same\u00a0length\u00a0of\u00a0the\u00a0copper\u00a0pipe is\u00a0inconsistent, \u00a0and the\u00a0copper\u00a0pipe\u00a0with\u00a0a\u00a0small\u00a0pier\u00a0at\u00a0the\u00a0time\u00a0of\u00a0the sparing\u00a0 is\u00a0extended\u00a0long, \u00a0resulting \u00a0in\u00a0excessive sparing\u00a0and\u00a0cracking.<\/p>\n\n\n\n

<\/figure>\n\n\n\n

Figure 1: Local cracking of air conditioning\u00a0copper\u00a0pipe\u00a0\u2461\u00a0Reasons\u00a0for\u00a0user\u00a0use.\u00a0In\u00a0the\u00a0use\u00a0of\u00a0copper pipe, \u00a0it\u00a0is\u00a0often \u00a0the\u00a0coil\u00a0straightening, \u00a0cutting\u00a0and\u00a0sizing, \u00a0and\u00a0thecutting\u00a0is \u00a0often\u00a0made \u00a0without \u00a0chips. The\u00a0surface\u00a0of\u00a0the\u00a0copper\u00a0pipe\u00a0after heat \u00a0treatment\u00a0is\u00a0relatively \u00a0soft.\u00a0When \u00a0the\u00a0chip \u00a0free \u00a0cutting \u00a0is\u00a0 carried out, \u00a0when\u00a0the\u00a0 cutting\u00a0knife\u00a0is\u00a0unfavorable \u00a0or\u00a0when\u00a0the\u00a0cutting\u00a0knife \u00a0is too\u00a0large, the\u00a0copper pipe shrink\u00a0is\u00a0too\u00a0large \u00a0or\u00a0too\u00a0many\u00a0burrs, formingthe\u00a0port flash\u00a0and\u00a0port\u00a0hardening, causing \u00a0cracking when\u00a0the\u00a0opening\u00a0is expanded.\u00a0A\u00a0heat\u00a0exchanger\u00a0is\u00a0composed\u00a0of\u00a0many\u00a0\"U\"\u00a0type\u00a0tube,\u00a0the\u00a0\"U\"\u00a0type tube length and each\"U\" type tube two end length of the consistency requirements \u00a0are \u00a0very \u00a0high, \u00a0when \u00a0bending \u00a0\"U\" type\u00a0tube,\u00a0due\u00a0to\u00a0equipment or \u00a0adjustment \u00a0reasons\u00a0caused\u00a0by \u00a0the \u00a0\"U\"\u00a0 type\u00a0tube\u00a0length \u00a0and each\u00a0\"U\"\u00a0type tube\u00a0two\u00a0end\u00a0length\u00a0difference\u00a0is\u00a0too\u00a0large\u00a0(greater\u00a0than\u00a02mm),\u00a0So\u00a0when flaring, \u00a0it \u00a0will appear\u00a0because\u00a0the\u00a0port\u00a0is\u00a0too\u00a0long\u00a0and\u00a0the\u00a0copper\u00a0pipe is \u00a0extended \u00a0too\u00a0long, \u00a0causing\u00a0the\u00a0flaring is\u00a0too\u00a0large\u00a0and\u00a0cracking.\u00a03, bending\u00a0pipe\u00a0wrinkle,\u00a0fracture:\u00a0copper\u00a0pipe\u00a0wrinkle\u00a0(Figure\u00a02,\u00a0Figure\u00a03), fracture\u00a0occurs\u00a0in\u00a0the\u00a0production\u00a0of\u00a0\"U\"\u00a0type\u00a0pipe\u00a0process,\u00a0copper\u00a0pipe in this process is often scrapped more.<\/p>\n\n\n\n

<\/figure>\n\n\n\n

Figure\u00a02:\u00a0Wrinkling\u00a0on\u00a0the\u00a0outside\u00a0of air conditioning copper pipe <\/p>\n\n\n\n

<\/figure>\n\n\n\n

Figure 3: wrinkling on the inside of air conditioning copper pipe<\/p>","protected":false},"excerpt":{"rendered":"

The first type of air conditioning copper pipe and its […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,13],"tags":[],"class_list":["post-6096","post","type-post","status-publish","format-standard","hentry","category-news","category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/posts\/6096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/comments?post=6096"}],"version-history":[{"count":3,"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/posts\/6096\/revisions"}],"predecessor-version":[{"id":6112,"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/posts\/6096\/revisions\/6112"}],"wp:attachment":[{"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/media?parent=6096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/categories?post=6096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jiahaorefrigeration.com\/ko\/wp-json\/wp\/v2\/tags?post=6096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}