An fi amfani da bututun ƙarfe na karkace a matsayin bututun ruwa da kuma bututun tarawa. Idan ana amfani da bututun ƙarfe don magudanar ruwa, gabaɗaya za a sha maganin hana lalata a saman ciki ko na waje. Maganin rigakafin lalata na gama gari sun haɗa da 3pe anti-lalacewa, epoxy coal tar anti-lalacewa, da epoxy foda anti-lalata. Jira, saboda tsarin dipping foda foda yana damuwa da matsalolin mannewa, tsarin dipping foda na epoxy foda ba a taɓa inganta shi ba. Yanzu, tare da ci gaba da ci gaba na musamman phosphating bayani ga epoxy foda dipping, matsalar adhesion na epoxy foda dipping tsari an shawo kan a karon farko, da kuma fitowan tsari na epoxy foda dipping ya fara bayyana.

Yin nazarin dalilan m anti-lalata shafi kauri a karkace karfe bututu, da m kauri na 3PE karkace karfe bututu coatings ne yafi nuna a cikin m kauri na gwajin maki a kowane gefe rarraba a cikin circumferential shugabanci. Ma'aunin masana'antu SY/T0413-2002 ba shi da ka'idoji don daidaituwar kauri. Yana ƙayyadad da ƙimar kauri na rufin amma yana buƙatar ƙimar kauri na rufin ba zai iya zama ƙasa da ƙimar kauri na aya ba, maimakon matsakaicin ƙimar maki gwaji da yawa.

Idan rufin kauri ne m a lokacin shafi aiwatar da karkace karfe bututu, da shafi abu babu makawa za a vata. Wannan shi ne saboda lokacin da kauri na sutura a mafi girman ɓangaren ya kai ƙayyadaddun ƙayyadaddun, kauri daga cikin kauri zai zama mafi girma fiye da kauri na musamman na Coating. Haka kuma, m shafi iya sa da shafi kauri a cikin thinnest part na karfe bututu kasa saduwa da ƙayyadaddun bayanai. Babban dalilan rashin daidaituwa a lokacin aikin samarwa shine rarraba kayan da ba daidai ba da lankwasa bututun ƙarfe. Hanya mai mahimmanci don sarrafa suturar da ba ta dace ba na bututun anti-lalata 3PE shine daidaitawa da yawa extrusion mutu don yin kauri mai kauri a wurare da yawa kamar yadda ya kamata kuma don hana bututun ƙarfe mara izini daga ana rufaffiyar kan layi.

Wrinkles a saman rufin: Extrusion da iska na kayan polyethylene akan bututun ƙarfe yana buƙatar amfani da abin nadi na silicone. Daidaitawar da ba daidai ba yayin wannan tsari na iya haifar da wrinkles a saman rufin. Bugu da ƙari, fashewar fim ɗin narke lokacin da kayan polyethylene ya bar fita ya mutu a lokacin aikin extrusion kuma zai haifar da lahani mai kyau kamar wrinkles. Hanyoyin sarrafawa masu dacewa don abubuwan da ke haifar da wrinkles sun haɗa da daidaitawa da ƙarfi da matsa lamba na abin nadi na roba da abin nadi na matsa lamba. Daga wannan hangen nesa, daidai ƙara yawan extrusion na polyethylene don sarrafa fashewar fim ɗin narkewa.