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ThePipe ea PVCMoetso o na le: Resin ea PVC, mofetoleli oa phello, stabilizer, mofetoleli oa ho sebetsa, setlolo, pigment le lubricant ea kantle.

1. Resin ea PVC

E le ho fumana polasetiki e potlakileng le e ts'oanang, mokhoa oa ho emisa o lokela ho sebelisoa ho lokolla resin.

——Resin e sebelisoang bakeng sa liphaephe tse nang le mabota a mabeli e lokela ho ba le kabo e ntle ea boima ba limolek’hule le litaba tse litšila, e le ho fokotsa “leihlo la tlhapi” ka har’a phala le ho qoba ho putlama ha liphaephe le ho phatloha ha lerako la phala.

——Resin e sebelisoang bakeng sa lipeipi tsa phepelo ea metsi e lokela ho ba ea "bohloeki ba maemo", 'me masala a vinyl chloride ka har'a resin e lokela ho ba ka hare ho 1 mg/kg.E le ho netefatsa boleng ba phala le ho fokotsa sekhahla se nang le sekoli, mohloli oa resin o lokela ho tsitsa.

2. Stabilizer

Hajoale, li-stabilizer tse ka sehloohong tsa mocheso tse sebelisoang Chaena ke: lisepa tsa tšepe, li-stabilizer tsa letsoai tse entsoeng ka motsoako oa lead, li-stabilizer tse sa tloaelehang tsa lefatše, le li-organic tin stabilizers.

Li-stabilizers tse nang le litšepe tse boima (tse kang Pb, Ba, Cd) li kotsi bophelong ba batho, 'me tekanyo ea li-stabilizer tsena ha ho etsoa liphaephe tsa phepelo ea metsi e lekanyelitsoe.Ts'ebetsong ea extrusion ea single-screw, nalane ea ho futhumatsa ea thepa e telele ho feta ea ts'ebetso ea mafahla-screw extrusion, mme palo ea stabilizer ea pele e eketseha ka ho feta 25%.Mocheso oa hlooho ea phala e entsoeng ka marako a mabeli e phahame, thepa e lula hloohong nako e telele, 'me palo ea stabilizer ka foromo e feta ea mokhoa o tloaelehileng oa phala.

3. Motlatsi

Mosebetsi oa li-fillers ke ho fokotsa litšenyehelo.Leka ho sebelisa li-filler tse sebetsang hantle haholo (theko e holimo).Palo ea thepa ea liphaephe e kholo ho feta ea profiles.Palo e feteletseng ea li-filler e tla etsa hore khanyetso ea tšusumetso e fokotsehe 'me khatello ea khatello ea phala e fokotsehe.Ka hona, liphaepheng tsa lik'hemik'hale le liphaephe tsa phepelo ea metsi, palo ea ho tlatsa likopi tse ka tlase ho 10.Palo ea ho tlatsa phala ea drain le sleeve e entsoeng ka serame e ka ba ngata, 'me palo ea CPE e ka eketsoa ho fetola ho theoha ha ts'ebetso ea ts'ebetso.

Bakeng sa liphaephe tse nang le litlhoko tse tlase bakeng sa ts'ebetso ea liphaephe, le liphaephe tsa pula, palo ea ho tlatsa e ka ba khōlō, empa ho roala ha mafahla-screw extruder ho tebile.

4. Mofetoleli

(1) Mofetoleli oa ho sebetsa: liphaephe tse tloaelehileng li ka sebelisoa ka tlase kapa che;hangata lipeipi tsa masenke le lipeipi tse masesaane li sebelisoa haholo.

(2) Impact modifier: tekanyo e fokolang ho feta profiles, ka mabaka a mabeli: 1. Ts'ebetso, ho hanyetsa mocheso o tlase, matla a thata 2. Litšenyehelo

(3) Lisebelisoa tse ling, mebala, joalo-joalo: Ha profil e sebelisoa e le moemeli ea khahlanong le botsofali, titanium dioxide e tlameha ho eketsoa.Foromo ea phala e thata ea PVC ke haholo-holo pigment, haholo-holo titanium dioxide kapa carbon black, e ka khethoang ho latela litlhoko tsa ponahalo ea phala.

5. Ho lumellana ha lubricant e ka ntle le stabilizer

(1) Khetha setlolo se ts'oanang sa kantle ho ea ka stabilizer

a.Organotin stabilizer.The organic tin stabilizer e lumellana hantle le PVC resin, 'me e na le tšekamelo e tebileng ea ho khomarela lebota la tšepe.Setlolo sa ka ntle se theko e tlase se ts'oanang le sona ke parafine e thehiloeng parafine-calcium stearate system.

b.Loto letsoai stabilizer.Lead salt stabilizer ha e tsamaellane hantle le resin ea PVC, 'me e khomarela feela holim'a likaroloana tsa PVC, tse sitisang ho kopana pakeng tsa likaroloana tsa PVC.Hangata, ho sebelisoa lubricant ea kantle ea lead stearate-calcium stearate ho e bapisa.

(2) Palo ea mafura a kantle.Haeba ho lokisa palo ea mafura a kantle ho ntse ho sa khone ho fihlela litlhoko tsa ts'ebetso ea thepa, o ka nahana ka ho eketsa setlolo se senyenyane sa kahare.Ha ho sebelisoa mofetoleli oa toughening, ka lebaka la viscosity e phahameng ea ho qhibiliha, monyetla oa ho khomarela holim'a tšepe o phahame, 'me hangata mafura a ka ntle a hloka ho eketseha;Pipe e nang le marako a teteaneng e hloka mafura a mangata a ka ntle.Ha mocheso oa ts'ebetso o phahame, tšekamelo ea ho qhibiliha ho khomarela holim'a tšepe e phahame, 'me ho eketsoa lisebelisoa tse ling tsa ka ntle.

Liphaephe tsa PVC li entsoe joang?

Liphaephe tsa PVC li entsoe ka extrusion ea thepa e tala ea PVC, 'me ka kakaretso li latela mehato e tšoanang ea ts'ebetso e tloaelehileng ea liphaephe:

• Ho fepa li-pellets / phofo ka har'a PVC twin screw extruder
• Ho qhibiliha le ho futhumatsa libakeng tse ngata tsa extruder
• Ho ntša ka har'a phala ho etsa phala
• Ho pholisa ha phala e bōpehileng
• Ho khaola liphaephe tsa PVC ka bolelele bo lakatsehang