daim ntawv thov

PVC hose ntau lawm txheej txheem:

Kev sib xyaw → kneading → extrusion granulation → extrusion forming → traction → coiling → ntim → kev tshuaj xyuas zoo → khoom tiav

1. Kneading ntawm cov khoom xyaw

Txhua yam ntawm cov khoom siv raw yog ntsuas kom raug thiab muab tso rau hauv kneader hauv ib qho kev txiav txim.Kev pub noj ib ntus: PVC resin, plasticizer, stabilizer, lubricant.Thaum qhov kub nce mus txog 100 ~ 110 ℃, cov khoom tuaj yeem tawm.

2.extrusion granulation

Cov txheej txheem no los tswj qhov kub thiab txias, qhov siab tshaj plaws ntawm cov khoom siv kub yuav tsum tau tswj kom siab tshaj qhov kub ntawm cov khoom, qis dua qhov kub extrusion molding, uas yog, ntawm 155 ~ 160 ℃.Granulation yuav tsum ua tiav lub hom phiaj ntawm kev sib xyaw ua ke thiab pib plasticization.

Qhov kub ntawm txhua cheeb tsam ntawm granulator yog raws li nram no:

Thaj tsam ntawm 80 ~ 90 ℃;Thaj tsam ntawm 130 ~ 140 ℃;Peb thaj chaw 140 ~ 150 ℃;Pib los ntawm 150 ~ 160 ℃.

3. extrusion raj txoj kev

Qhov kub ntawm extrusion raj txoj kev yog me ntsis siab dua.Feem ntau, cov pob tshab ntawm cov yeeb nkab yog cuam tshuam nrog kev tsim kub.Nyob rau hauv ib tug tej yam kub ntau yam, lub siab kub transparency yog zoo, thiab vice versa.Nyob rau tib lub sijhawm, traction ceev thiab txias ceev yuav cuam tshuam rau lub pob tshab ntawm cov yeeb nkab.Lub traction ceev yog me ntsis loj, qhov txias txias yog ceev, thiab cov pob tshab ntawm cov yeeb nkab yog zoo dua.Traction ceev feem ntau yog 10% ~ 15% sai dua extrusion ceev.Qhov txias ntawm lub pob tshab hose yog txau nrog dej txias ntawm qhov tuag ntawm lub qhov ntswg thiab ces txias rau hauv lub tank dej.

Qhov kub ntawm txhua cheeb tsam ntawm extrusion molding yog raws li nram no:

Zone 1:90 ℃;Zone ob 140 degrees 5 ℃;Peb cheeb tsam 160 degrees 5 ℃;Plaub thaj tsam 170 degrees 5 ℃.

4. PVC hose extrusion ceev faj:

1. ncaj qha nrog hmoov extrusion molding, qhov kub ntawm lub extruder yog li 5 ℃ qis dua nrog cov khoom siv granular.

2. Ntxiv rau qhov me me txoj kab uas hla (φ60mm hauv qab) ntawm lub raj tsis muaj cua txias tsis tas yuav tsum tau tshuab rau hauv cov cua compressed, txoj kab uas hla loj ntawm lub raj tsis muaj cua txias yuav tsum tau tshuab rau hauv lub raj cua compressed, thiaj li yuav ua kom lub cev muaj zog. qhov tseeb thiab ruaj khov ntawm lub raj txoj kab uas hla.Them mloog mus rau qhov ruaj khov siab ntawm compressed cua.

3. Ua tib zoo saib xyuas qhov ruaj khov ntawm traction ceev thiab zam qhov kev hloov ntawm cov yeeb nkab txoj kab uas hla los yog phab ntsa thickness tshwm sim los ntawm traction instability.

4. Yog tias lub tshuab raug kaw rau lub sijhawm ntev, nws yuav tsum tau muab tshem tawm thiab ntxuav kom tsis txhob muaj teeb meem decomposition.

Ntau yam pob tshab hose siv mis

1, non-toxic pob tshab hose

PVC 100 DOP 45

ESBO 5 Dioctyl tin laurate 2

Calcium-zinc compound stabilizer 1

Plasticizer tuaj yeem xaiv glycol butyl phthalate ester (BPBG) thiab citric acid peb butyl ester

2. Pob tshab hose

PVC 100 epoxy plasticizer 5

DOP 30 Organotin 1.5

DBP 10 Barium stearate, cadmium 1

DOA 5

3. Pob tshab hose

PVC 100 ESBO 5

DOP 45 barium - cadmium kua stabilizer 2

4. Pob tshab hose

PVC 100 Zinc stearate 0.05

Cadmium stearate 1 DOP 28

Barium stearate 0.4 DBP 18

Lead stearate 0.1 tus nqi ntawm cov tshuaj bleaching

5. Pob tshab hose

PVC 100 MBS 5 ~ 10

DOP 30 C-102 3

15 HST 0.3 PAB

6. Cov hlab ntshav tsis muaj tshuaj lom

PVC 100 ESBO 5

45 HST DOP 0.5

AlSt ZnSt 0.5 0.5

Paraffin 0.2

7. Pob tshab vaj hose

PVC 100 DOP 40

ED3 10 Barium - cadmium kua stabilizer 1

Chelator 0.3 stearic acid 0.3

8. Pob tshab raj rau dej haus

PVC 100 DOP (los yog DOA) 50

Calcium-zinc kua stabilizer 3 Stearic acid 0.5

9. Cov hlab ntshav thiab lub hnab ntim ntshav

PVC 100 DOP 45

ESBO 5 ~ 10 Calcium zinc kua stabilizer 1.5