Rufin Polyethylene Anti-lalata don Bututun 3PE

Rufin polyethylene mai hana lalatawa gabaɗaya shafi ne mai tsari uku na polyethylene mai hana lalatawa, wanda aka taƙaita shi zuwa 3PE. Layer na ƙasa yawanci shafi ne na foda na epoxy, Layer na tsakiya shine manne, kuma Layer na waje shine shafi na polyethylene.

Tsarin Rubutun Anticorrosive

Tsarin Layer uku na polyethylene anticorrosive shafi an rage shi azaman 3PE. Ƙarƙashin ƙasa shine murfin foda na epoxy, tsakiyar Layer yana da m, kuma Layer na waje shine polyethylene.

Performance

Na farko Layer na 3PE ne epoxy shafi, na biyu Layer ne m, kuma na uku Layer ne extruded polyethylene shafi. Yaduddukan suna daure sosai da juna don samar da tsari mai hade, suna kara karfin juna. Yana amfani da karfi bonding karfi tsakanin epoxy foda da karfe bututu surface don inganta mannewa; kuma yana amfani da ingantacciyar ƙarfin injina, kwanciyar hankali sinadarai, rufi, juriya ga shigar tushen shuka, da juriya na ruwa na extruded polyethylene don haɓaka aikin gabaɗaya. Wannan ya sa aikin gabaɗaya na murfin anticorrosive PE mai Layer uku ya zama mafi shahara kuma cikakke, dacewa da matsananciyar yanayi tare da manyan buƙatu don kaddarorin injin, juriya na ƙasa, da juriya na ruwa na suturar sutura, kamar ƙasa tsakuwa, sassan dutse, yankuna. tare da babban danshi na ƙasa, da kuma wuraren da tushen tushen shuka.

Aikace-aikace

Kafin da ake ji da anticorrosive shafi, surface na karfe bututu ya kamata a tsabtace da maiko, datti, da sauran haɗe-haɗe, da kuma surface ya kamata a pretreated bayan preheating da karfe bututu a zazzabi na 40-60 ℃. The surface pretreatment quality kamata hadu da bukatun na Sa2.5 matakin na "Surface Tsatsa Grade da tsatsa Cire Grade na Karfe Kafin Painting" GB / T 8923, da kuma anga juna zurfin ya kamata kai 50μm-75μm. Weld slag, burrs, da sauran datti a saman bututun karfe ya kamata a cire.

Yi amfani da tushen zafi mara ƙazanta don dumama bututun ƙarfe zuwa yanayin zafi mai dacewa, kuma a ko'ina a yi amfani da murfin foda na epoxy zuwa saman bututun ƙarfe. Dole ne a yi amfani da manne a lokacin aikin maganin foda na epoxy. Za a iya lulluɓe Layer polyethylene ta amfani da tsari na extrusion mai tsayi ko tsarin naɗaɗɗen gefe. Don bututun ƙarfe tare da diamita mara kyau fiye da 500mm, ana ba da shawarar tsarin naɗawa ta gefe. Lokacin amfani da tsarin nade na gefe, tabbatar da cewa polyethylene a ɓangarorin biyu na zoba da polyethylene a ɓangarorin biyu na weld gaba ɗaya sun yi birgima kuma an haɗa su gaba ɗaya, kuma hana murfin polyethylene daga lalacewa. Lokacin amfani da tsarin extrusion na tsaye, bai kamata a sami ɓoyayyen ɓoyayyiya a ɓangarorin biyu na walda ba. Bayan da polyethylene Layer aka mai rufi, tabbatar da cewa Fused epoxy shafi ne gaba daya warke, sa'an nan kwantar da shi da ruwa zuwa karfe bututu zafin jiki bai fi 60 ℃.

gyara

Lokacin da aka sami lahani akan bututun 3PE, don lalacewa ƙasa da ko daidai da 30mm, ana ba da shawarar yin amfani da facin gyaran gyare-gyare na polyethylene mai haɗin giciye. Lokacin gyarawa, da farko cire datti a wurin da ya lalace kuma a yi tagullar polyethylene. Sa'an nan kuma yanke Layer polyethylene a wurin da aka lalace a cikin da'irar, kuma gefen ya kamata a juya zuwa kusurwa mai laushi. Cika ramin tare da manne wanda ya dace da facin gyara, sannan kuma ku manne facin gyaran. Girman facin gyare-gyare ya kamata ya tabbatar da cewa gefen yana da akalla 100mm daga gefen rami a cikin Layer polyethylene. Lokacin manne facin, zafi shi yayin mirgina shi da abin nadi ko matse shi da safofin hannu masu jure zafin zafi don cire iska har sai abin da ke kusa da facin gyaran ya cika.

Don lalacewa fiye da 30mm, da farko cire datti a wurin da ya lalace, gyara Layer polyethylene, sa'an nan kuma yanke polyethylene a wurin da ya lalace a cikin da'irar, kuma gefen ya kamata a juya zuwa wani kusurwa. Cika ramin tare da manne wanda yayi daidai da facin gyara, sannan ku manne facin gyaran. A ƙarshe, kunsa tef ɗin zafi a kusa da wurin gyarawa, kuma faɗin naɗa ya kamata ya zama aƙalla 50mm ya fi girma fiye da kowane gefen facin gyaran.

A madadin, za a iya tsabtace farfajiyar da farko, sannan za a iya amfani da murfin epoxy mai kashi biyu don anticorrosion. Busassun fim ɗin ya kamata ya zama daidai da na babban bututun, sa'an nan kuma ana iya amfani da tef ɗin gyaran gyare-gyare ko zafin zafi.

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