Mefuta e meraro ea polypropylene, kapa copolymer e sa reroangphala ea polypropylene, e boleloa ke khutsufatso ea PPR.Sesebediswa sena se sebelisa ho cheselletsa mocheso, se na le lisebelisoa tse khethehileng tsa ho cheselletsa le ho itšeha, 'me se na le polasetiki e phahameng.Litšenyehelo le tsona lia utloahala.Ha lera la insulating le eketsoa, ​​ts'ebetso ea ho itšireletsa e ntlafala 'me lerako la phala, ntle le ho kopana pakeng tsa likhoele tse ka hare le tsa ka ntle, le tsona li boreleli haholo.

Hangata e sebelisoa liphaepheng tse patiloeng pele ho liliba tse tebileng kapa maboteng a kentsoeng.Pipe ea PPRe na le bophelo ba tšebeletso ea lilemo tse ka bang 50, e theko e tlaase, e tsitsitse ts'ebetsong, e thibela mocheso le ho boloka mocheso, e thibela ho bola, e boreleli ebile e sa ntlafatse leboteng le ka hare, e bolokehile ebile e tšepahala tsamaisong ea lipeipi.Ho netefatsa polokeho ea sistimi, ho hlokahala lisebelisoa tse tsoetseng pele le basebetsi ba tšoanelehang bakeng sa kaho, e nang le litlhoko tse phahameng tsa theknoloji.

Mebala e bonolo, e ts'oanang - ho fapana le melumo e fapaneng e fumanoang liphaepheng tse ling tsa metsi - e fana kaPP-R pipe ea metsintlha e kgahlang le mmala.(Hangata bareki ba nahana hore bosoeu ke 'mala o motle ka ho fetisisa oa liphaephe tsa PP-R, empa 'mala ha se letšoao la ho ahlola boleng; boleng ba lipeipi tsa metsi tsa PP-R li fapane le lipeipi tsa PP-R, le 'mala oa metsi. pipe ha e amane letho le eona (ho boetse ho na le mebala e meng e kentsoeng ka colorbatch) Mmala ofe kapa ofe o ka etsoa ha feela colorbatch e le teng, 'me e ke ke ea theola kapa ea ama boleng ba PP. ka hona, ha ho na taba hore na pipe ea metsi e na le 'mala ofe.

Ka kakaretso, ke lisebelisoa tse tala tsa PP-R feela tse ka sebelisoang ho etsa thepa e tšoeu.Ka mohlala, athe lihlahisoa tse ling tsa mebala tse entsoeng ka li-masterbatches tsa mebala li kopantsoe le lisebelisoa tse tsosolositsoeng, lisebelisoa tsa litšila le lisebelisoa tsa sekhutlo, 'mala oa lihlahisoa o hlahisoang ka ho eketsa lisebelisoa tse nchafalitsoeng, litšila le lisebelisoa tsa sekhutlo ha o bonolo ebile ha o lekane.'Mala oa sehlahisoa o ke ke oa angoa ke lisebelisoa tse sebelisoang, joalo-joalo. Sebaka sa kahare sa sehlahisoa se lokela ho ba se se nang sekoli le se bataletseng;liphoso tse kang li-bubble tsa moea, li-depressants tse khanyang, li-grooves, le litšila ha li amohelehe.

Lisebelisoa tsohle tsa mantlha tsa liphaephe tse ntle tsa metsi tsa PP-R ke PP-R.(ntle le li-additives).E hloekile ka chebahalo, e nang le bokaholimo bo boreleli le molamu o phutholohileng.Liphaephe tse etsisang PP-R li ikutloa li le bonolo.Ka kakaretso, likaroloana tse thata li atisa ho kenyelletsa litšila;polypropylene ke karolo ea mantlha ea liphaephe tsa PP-R.Liphaephe tse fokolang li nkha ka mokhoa o makatsang, athe liphaephe tse ntle tsona ha li nkha joalo.Hangata, polyethylene ho e-na le polypropylene e kopantsoe.

Mocheso o tloaelehileng oa ho cheselletsa liphaephe tsa PP-R o pakeng tsa 260 le 290°C.Boleng ba weld bo tla netefatsoa hamolemo ho mocheso ona.Sehlahisoa se ka kena habonolo hloohong ea welding die nakong ea ho tjheseletsa haeba litekanyetso tsa welding li tloaelehile.Ntle le moo, li-nodule tsa pokello ea sehlahisoa li batla li le metsi, ho bonts'a hore ha li entsoe ka lisebelisoa tsa 'nete tsa PP-R.

Sehlahisoa le sona ha se entsoe ka thepa ea 'nete ea PP-R haeba li-nodule tsa pokello ea welding li ka pholile le ho tiea kapele (hangata nakong ea metsotsoana e 10).Lebaka ke hobane PP-R e na le phello e matla ea ho boloka mocheso, ho bolelang hore sekhahla sa eona sa ho pholile se tla tsamaea butle.
Hlahloba ho bona hore na lisebelisoa tsa liphaephe li huloa le hore na bophara bo ka hare ba phala bo sothehile.Bophara bo ka hare ba phala e ntle ea PP-R e ke ke ea huloa, 'me ha e kobehe habonolo.