Ngokuhla kwamandla oovimba kunye noovimba bobutyebi, iinqwelo zemibhobho zithutha irhasi eninzi nangakumbi, i-asphalt kunye nezinye iimveliso zepetroleum ezikumgangatho ophantsi, kwaye ulwakhiwo lwemibhobho yaselwandle nalo luyaphuhla ngokuqhubekayo. Uphuhliso aluzange luphazamiseke. Oku kulandelayo sintshayelelo kwezinye iitekhnoloji.
Ubushushu obuphezulu bokumelana ne-3pe anticorrosion
Unyango lomphezulu wokudubula kwangaphandle kwinqanaba lokuqhushumba 2.5, umvambo 60 microns. Emva kokudubula ukudubula kunye nokususwa kwe-rust, ubuso bombhobho wensimbi buhlanjululwa nge-phosphoric acid kunye ne-chromate ukususa uthuli olufakwe kumbhobho wensimbi.
Umaleko wokuqala usebenzisa i-FBE anti-corrosion epoxy powder ukuze ithathe indawo ye-3pe ye-anti-corrosion powder eqhelekileyo, ephucula umsebenzi wemichiza engaphezulu kunye nokwandisa ukunamathela nge-FBE. Ukushisa kweglasi yenguqu ye-FBE iphakathi kwe-100-150 ° C, kunye ne-Vicat softening ye-adhesive Indawo yokuthambisa ye-HDPE yi-124 ° C ngenxa yokusabalalisa ubunzima be-molecular, iipropati ezinzima kunye nokuchasana okunamandla kumonakalo womatshini.
Umaleko wesibini ngowona ubalulekileyo. Ukusebenza kweqondo lokushisa eliphezulu kwe-3pe kuxhomekeke kwiipropati zezinto eziluhlaza. Okwangoku, izixhobo ezisebenza ngokuphezulu ziphuhliswe ngokuzimeleyo yi-Xinlong Anticorrosion zisekwe kwizigqibo ezithathwe kusetyenziso lweshishini. Iqondo lokushisa elithambileyo le-adhesive liyancipha nge-20 ° C, ubushushu obuphezulu bokusebenza kwe-3pe eguquliweyo ye-anti-corrosion layer ifunyenwe.