Ngaphandle kwe-3LPE Coating DIN 30670 Ngaphakathi kwe-FBE Coating
Incazelo Yomkhiqizo
I-Cangzhou Spiral Steel Pipes Group Co., Ltd inemigqa engu-4 yokukhiqiza ye-anticorrosion & thermal insulation ukuze yenze ukunamathela kwe-3LPE nokuhlanganisa i-FBE. Ubukhulu obuphelele bangaphandle bungaba ngu-2600mm.
Izembatho zilungele ukuvikelwa kwamapayipi ensimbi agqitshiwe noma acwilisiwe emazingeni okushisa okuklama kusuka -40 ℃ kuya +80 ℃.
Izinga lamanje licacisa izimfuneko zokumboza ezisetshenziswa kumapayipi ensimbi ashiselwe ngokuvunguza kanye nezinto ezisetshenziselwa ukwakhiwa kwamapayipi okudlulisa uketshezi noma amagesi.
Ukusebenzisa leli zinga kuqinisekisa ukuthi i-PE coating inikeza ukuvikelwa okwanele ngokumelene nemithwalo yemishini eshisayo neyamakhemikhali eyenzekayo ngesikhathi sokusebenza, ukuthutha, ukugcinwa nokufakwa.
Izembatho ezinwetshiwe zihlanganisa izendlalelo ezintathu: i-epoxy resin primer, i-PE enamathelayo kanye nesendlalelo sangaphandle se-polyethylene ekhishwe. I-epoxy resin primer isetshenziswa njengempushana. I-adhesive ingasetshenziswa njenge-powder noma nge-extrusion. Ukuze kuhlanganiswe i-extruded umehluko wenziwa phakathi kwe-sleeve extrusion kanye ne-extrusion yeshidi. I-polyethylene ye-Sintered iyisistimu eyodwa noma enezingqimba eziningi. Impushana ye-polyethylene ihlanganiswe engxenyeni eshisiwe ngaphambili kuze kube yilapho kufinyelelwa khona ukujiya okufunayo.
I-Epoxy resin primer
I-epoxy resin primer kufanele isetshenziswe ngendlela yempushana. Ubuncane bengqimba obukhulu bungama-60μm.
I-PE enamathelayo
I-adhesive ye-PE ingasetshenziswa ngendlela ye-powder noma ikhishwe. Ubuncane bengqimba obukhulu bungu-140μm. izidingo zamandla e-peel ziyahlukahluka kuye ngokuthi i-adhesive isetshenziswe njenge-powder noma ikhishwe.
Ukufakwa kwe-polyethylene
I-polyethylene coating isetshenziswa ngokucwilisa noma ngomkhono noma nge-extrusion yeshidi. I-coating kufanele ipholile ngemva kokufaka isicelo ukuze kugwenywe ukuguquguquka okungafuneki ngesikhathi sokuthutha. Kuye ngosayizi wegama, kunamanani aphansi ahlukene ogqinsi olujwayelekile lokumboza. Esimeni sokukhuphuka kwemithwalo yemishini ukujiya kongqimba oluncane kufanele kukhuliswe ngo-0.7mm. ubuncane bogqinsi bongqimba bunikezwe kuthebula lesi-3 ngezansi.
