(1) SJ65-B raug xaiv rau lub extruder, hom ncaj nraim yog xaiv rau lub taub hau tshuab, thiab compression ntawm lub taub hau tshuab yog loj dua rau 2.5: 1; Qhov sib piv yog: L / D tus nqi yog 25: 1; Cov ntsia hlau zawj ntawm cov ntsia hlau sib npaug sib npaug thiab tsis sib npaug hauv qhov tob.
Lub yaj viscosity ntawm recycled soft PVC yog tsawg thiab fluidity yog zoo heev, yog li ntawd lub compression piv ntawm lub taub hau yog tswj ntawm 10 ~ 20, qhov ntev ntawm qhov ncaj ncaj ntawm lub qhov ncauj zaj duab xis yog hais txog 10 ~ 20 npaug ntawm phab ntsa thickness. ntawm lub hose, thiab qhov loj ntawm cov tub ntxhais zaj duab xis tuaj yeem nthuav dav los ntawm 10 feem pua ~ 20 feem pua piv nrog rau sab hauv thiab sab nraud ntawm lub raj. Tom qab extruding PVC hose, nws yuav tsum tau ncab kom ncav cuag qhov yuav tsum tau cov yeeb nkab txoj kab uas hla, thiab txoj kev cua txias txais cov tshuaj tsuag txias dej txias, thiab cov tshuaj tsuag txoj hauj lwm yog 20 ~ 40 hli ntawm lub tshuab taub hau.
(2) Kev tswj kub ntawm txhua ntu ntawm extruder thaum extruding PVC hose:
Kev pub mis: 100 degree -120 degree ; Compression seem: 120 degree -140 degree ; Homogenization ntsuas seem: 140 degree -160 degree ; Shunt: 140 degree -160 degree; Lub qhov ncauj zaj duab xis: 160 degree -180 degree .
(3) Kev xaiv cov ntsia hlau ceev:
Vim hais tias lub melting fluidity ntawm recycled mos PVC yog zoo thiab yooj yim rau plasticize, cov ntsia hlau ceev ceev yog ceev tshaj qhov nyuaj PVC, thiab cov ntsia hlau ceev ntawm lub extruder nrog ib tug dav ntsia hlau txoj kab uas hla ntawm 65 hli yog (30 ± 10) r / min. Vim hais tias lub qhov cua yog txuas nrog cov cua sab nraud, tsis muaj cua compressed thaum lub sij hawm ua, thiab tsis muaj adhesion thiab unrounded yeeb nkab txoj kab uas hla.
(4) Kev tswj ntawm traction ceev
Thaum cov khoom siv rov ua dua PVC hose, tsis tas yuav tsum dhau cov cua compressed rau hauv cov yeeb nkab, thiab tsis tas yuav txias thiab zoo li qub, kom lub zog traction raug txo kom tsawg, thiab cov traction ceev yuav tsum tau nruj me ntsis tswj kom cov phab ntsa. Thickness ntawm cov yeeb nkab thiab sab nraud txoj kab uas hla loj ntawm recycled PVC hose.
