Iintlobo ezintathu zepolypropylene, okanye i-copolymer engahleliweumbhobho wepolypropylene, kubhekiswa kuyo sisishunqulelo sePPR. Esi sixhobo sisebenzisa i-welding eshushu, inezixhobo ezikhethekileyo zokuwelda kunye nokusika, kwaye ineplastiki ephezulu. Iindleko nazo zifanelekile. Xa i-insulating layer yongezwa, ukusebenza kwe-insulation kuphucula kwaye udonga lombhobho, ngaphandle kokudibanisa phakathi kweengcingo zangaphakathi nangaphandle, nazo zihamba kakuhle kakhulu.

Ngokuqhelekileyo isetyenziswa kwimibhobho esele ingcwatywe ngaphambili kumaqula anzulu okanye iindonga ezifakwe ngaphakathi.Umbhobho wePPRinobomi benkonzo ukuya kutsho kwiminyaka engama-50, inexabiso elifanelekileyo, lizinzile ekusebenzeni, likwazi ukumelana nobushushu kunye nokugcina ubushushu, likwazi ukumelana nomhlwa, ligudileyo kwaye lingalinganisi kudonga lwangaphakathi, lukhuselekile kwaye luthembekile kwinkqubo yemibhobho. Ukuqinisekisa ukhuseleko lwenkqubo, izixhobo ezintsonkothileyo kunye nabasebenzi abaqeqeshiweyo bayafuneka kulwakhiwo oluneemfuno eziphezulu zeteknoloji.

Ubumnene, i-hues efanayo-kunokuba iitoni eziguquguqukayo ezifumaneka kweminye imibhobho yamanzi-zinikeUmbhobho wamanzi wePP-Rinkalo enomtsalane kunye nombala. (Abathengi bahlala becinga ukuba umhlophe ngowona mbala ubalaseleyo kwimibhobho yePP-R, kodwa umbala awulophawu lokugweba umgangatho; umgangatho wePP-R wemibhobho yamanzi wahlukile kulowo wemibhobho yePP-R, kunye nombala wamanzi. umbhobho awunanto yakwenza nayo (kukwakho neminye imibala eyongezwe ngombala we-masterbatch). ngoko ke, akunamsebenzi ukuba yintoni umbala wombhobho wamanzi.

Ngokubanzi, kuphela izinto ezicocekileyo zePP-R ezinokusetyenziswa ukwenza iimpahla ezimhlophe. Umzekelo, ngelixa ezinye iimveliso zombala zicutshungulwa ngombala we-masterbatches zidityaniswe nezinto eziphinda zisetyenziswe, izinto ezilahliweyo, kunye nezixhobo zekona, umbala weemveliso oveliswa ngokudibanisa izinto eziphinda zisetyenziswe, izinto ezilahliweyo, kunye nezixhobo zekona awuthambile kwaye ungalingani. Umbala wemveliso awuyi kuchaphazeleka ngezinto ezisetyenzisiweyo, njl. njl iziphene ezifana namaqamza omoya, ukudakumba okuqaqambileyo, iigrooves, kunye nezinto ezingcolisayo azamkelekanga.

Zonke izinto ezisisiseko kwi-PP-R elungileyo imibhobho yamanzi yiPP-R. (ngaphandle kwazo naziphi na izongezo). Icocekile ngenkangeleko, inomphezulu ogudileyo kunye nomqheba okhululekileyo. Imibhobho ye-PP-R yokulinganisa ivakalelwa. Ngokubanzi, amasuntswana arhabaxa athande ukubandakanya ukungcola; i-polypropylene iyona nxalenye ephambili yeepayipi ze-PP-R. Imibhobho engekhoyo ivumba ngendlela engaqhelekanga, kanti imibhobho elungileyo ayinuki. Ngokuqhelekileyo, i-polyethylene kune-polypropylene idibene.

Ubushushu obuqhelekileyo be-welding kwimibhobho ye-PP-R buphakathi kwe-260 kunye ne-290 ° C. Umgangatho we-weld uya kuqinisekiswa ngcono kula maqondo obushushu. Imveliso inokungena lula kwi-welding die head ngexesha le-welding ukuba iiparamitha ze-welding ziqhelekileyo. Ukongeza, amaqhuqhuva okuqokelelwa kwemveliso aphantse abe lulwelo, abonisa ukuba ayenziwanga ngezinto zokwenyani zePP-R.

Imveliso nayo ayenziwanga kwizinto ezibonakalayo ze-PP-R ukuba i-welding accumulation nodules inokupholisa kwaye iqiniswe ngokukhawuleza (ngokuqhelekileyo kwimizuzwana eyi-10). Oku kungenxa yokuba i-PP-R inesiphumo esinamandla sokugcina ubushushu, nto leyo ethetha ukuba izinga lokupholisa ngokwemvelo liya kucotha.
Khangela ukuze ubone ukuba izixhobo zombhobho zizotywa kwaye ukuba ububanzi bangaphakathi bombhobho bugqwethiwe. I-diameter yangaphakathi yombhobho wePP-R omhle awukwazi ukutsalwa, kwaye ayigobeki lula.