Ngaphandle 3LPE Coating DIN 30670 Ngaphakathi FBE Coating

Inkcazelo emfutshane:

Lo mgangatho uchaza iimfuno zemveliso-esetyenzisiweyo kwi-polyethylene-based-extruded-based coatings kunye ne-multi-layered sintered polyethylene-based based coatings ukwenzela ukukhusela ukuhlwa kwemibhobho yentsimbi kunye nokufakelwa.

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I-Cangzhou Spiral Steel Pipes Group Co., Ltd inemigca emi-4 yokuvelisa ye-anticorrosion & insulation thermal ukwenza i-3LPE yokwambathisa kunye nokwaleka kwe-FBE. Ubuninzi bangaphandle ububanzi bunokuba yi-2600mm.

Iingubo zilungele ukukhuselwa kwimibhobho yentsimbi engcwatywe okanye engaphantsi kwamanzi kumaqondo obushushu oyilo lwe -40 ℃ ukuya +80 ℃.

Umgangatho okhoyo uxela iimfuno zokwaleka ezisetyenziswa kwimibhobho yentsimbi edityanisiweyo kunye nezixhobo ezisetyenziselwa ukwakhiwa kwemibhobho yokuhambisa ulwelo okanye iigesi.

Ukusebenzisa lo mgangatho kuqinisekisa ukuba i-PE yokugqoka inika ukhuseleko olwaneleyo kwimithwalo ye-thermal kunye neekhemikhali ezenzeka ngexesha lokusebenza, ukuthutha, ukugcinwa kunye nokufakwa.

Iingubo ezongezelelweyo ziquka imigangatho emithathu: i-epoxy resin primer, i-adhesive ye-PE kunye ne-polyethylene ekhutshiweyo yangaphandle. I-epoxy resin primer isetyenziswe njengomgubo. I-adhesive ingasetyenziswa mhlawumbi njengomgubo okanye nge-extrusion. Kwiingubo ezikhutshiweyo ukwahlula kwenziwa phakathi kwe-sleeve extrusion kunye ne-sheet extrusion. Iingubo ze-polyethylene ze-Sintered ziyinkqubo enye okanye ezininzi. I-polyethylene powder idityaniswe kwi-pre-heated component de kufike ubungakanani obufunwayo bokugquma.

I-epoxy resin primer

I-epoxy resin primer kufuneka ifakwe kwifomu yomgubo. Ubuncinci bobukhulu bomaleko yi-60μm.

I-PE encamathelayo

I-adhesive ye-PE ingasetyenziswa kwifom ye powder okanye ikhutshwe. Ubuncinci bobukhulu bomaleko yi-140μm. iimfuno zamandla e-peel ziyahlukahluka kuxhomekeke ekubeni i-adhesive isetyenziswe njengomgubo okanye ikhutshwe.

Polyethylene ukutyabeka

I-polyethylene yokugqoka isetyenziswe okanye i-sintering okanye nge-sleeve okanye i-sheet extrusion. Ukugquma kufuneka kupholiswe emva kwesicelo ukuphepha ukuguqulwa okungafunekiyo ngexesha lokuthutha. Kuxhomekeka kubungakanani begama, kukho amaxabiso amancinci ahlukeneyo obungakanani obuqhelekileyo bokugquma. Kwimeko yokunyuka kwemithwalo yomatshini ukutyeba kobuncinane bomaleko kuya kwandiswa nge-0.7mm. ubuncinane bomaleko obunzima bunikwe kwitheyibhile yesi-3 engezantsi.

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