1. A karkashin yanayin rashin tasiri waldi na bututun ƙarfe, da tanadin tsawon epoxy foda a ƙarshen polyethylene Layer ya kamata a ƙara daidai don hana 3PE anti-lalata warping lalacewa ta hanyar dogon stacking lokaci nakarfe bututuda kuma mummunan lalata ƙarfe na ƙarshen bututu.

2. Idan aka jera bututun da ke hana lalacewa na dogon lokaci a sararin sama, sai a rufe su a ƙarshen bututun don hana ruwan sama lalata da haifar da lalata ƙarshen bututun.

3. Idan lokacin aikin bututun ya daɗe, za'a iya fentin fentin anti-tsatsa mai walƙiya akan ƙaramin ƙarfe na ƙarshen bututu don hana 3PE anti-lalata Layer daga warping saboda lalata lokacin ajiya.

4. Tsananin sarrafa ingancin niƙa na kabu na walda da aka tanada a ƙarshen bututu.Na waje na polyethylene tsagi a walda daidai yake da sauran sassan jikin bututu.Rike foda na epoxy ya fi tsayi fiye da 20mm don hana ƙasan foda na epoxy a walda daga lalacewa da farko da haifar da 3PE anti-lalacewa Layer na warp.

Ya kamata a lura da nika na bututu karshen welds:

1) Daga farkon kabu waldi nika zuwa polyethylene chamfer, ya kamata a sami wani lebur sashe na polyethylene Layer na 10-20mm ba tare da wani wuce haddi weld tsawo da kuma iri daya da bututu jiki don tabbatar da extrusion da bonding na polyethylene. tsagi a bututu karshen ingancin.

2) Ƙarfafawar kabu na weld bayan niƙa ya kamata ya zama kamar yadda zai yiwu tare da jikin bututu, kuma kada a sami wani ƙarfafawa na fili don hana foda na epoxy daga gogewa lokacin da ake nika chamfer na Layer polyethylene.

3) Chamfer na saman da ba a yi ado ba na weld da sashin canji na wurin da aka gyara ya kamata kuma ya kasance daidai da chamfer na Layer polyethylene (≤30°) ta yadda ƙarfin matsi na abin nadi zai iya danna madaidaicin Layer na polyethylene Don hana murfin polyethylene daga curling saboda rashin mannewar Layer anti-lalata a tsagi.

5. Rufin foda na epoxy na sashin da aka tanada zai iya jinkirta warping gefen lalacewa ta hanyar lalata kawai lokacin da kariya ta cika.Domestic bututu karshen polyethylene bevel aiki da aka yi da karfe waya dabaran nika, wanda zai lalata epoxy foda shafi.Ya kamata a yi amfani da bevel a maimakon haka, kuma ƙasan Layer na gefen wuka ya kamata a iyakance ta na'urar don sarrafa zurfin yankan kayan aiki, don kada ya lalata murfin foda na epoxy.