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Habka wax soo saarka tuubada PVC:

Isku qas → cajiin → granulation extrusion → samaynta extrusion → jiidashada → gariiradda → baakadaha → kormeer tayada → alaabta dhammaatay

1. Cunista maaddooyinka

Dhammaan noocyada alaabta ceeriin si sax ah ayaa loo miisaamaa waxaana loo geliyaa cajiin si gaar ah.Isku xigxiga quudinta: xabagta PVC, caagadeeyaha, xasiliyaha, saliidaha.Marka heerkulku gaaro 100 ~ 110 ℃, walxaha waa la sii deyn karaa.

2. granulation extrusion

Nidaamkan si loo xakameeyo heerkulka, meesha ugu sarreysa ee heerkulka walxaha waa in lagu xakameeyaa ka sarreeya heerkulka dhalaalka ee walxaha, oo ka hooseeya heerkulka qaabaynta extrusion, taas oo ah, inta u dhaxaysa 155 ~ 160 ℃.Granulation waa in la gaaro ujeedada isku darka buuxa iyo balaastiga bilowga ah.

Heerkulka aag kasta ee granulator waa sida soo socota:

Bedka 80 ~ 90 ℃;Bedka 130 ~ 140 ℃;Saddex goobood 140 ~ 150 ℃;Laga bilaabo 150 ~ 160 ℃.

3. samaynta tuubada extrusion

Heerkulka tuubada extrusion samaynta ayaa waxoogaa ka sarreeya.Guud ahaan, daahfurnaanta tuubada waxay la xiriirtaa heerkulka samaynta.Heerkul gaar ah, hufnaanta heerkulka sare waa mid wanaagsan, iyo liddi ku ah.Isla mar ahaantaana, xawaaraha jiidashada iyo xawaaraha qaboojinta ayaa saameyn doona daahfurnaanta tuubada.Xawaaraha jiidista ayaa xoogaa ka weyn, xawaaraha qaboojintu waa dhakhso, hufnaanta tuubada ayaa ka fiican.Xawaaraha jiidista guud ahaan waa 10% ~ 15% ka dheereeya xawaaraha extrusion.Qaboojinta tuubada hufan waxaa lagu buufiyaa biyo qabow marka uu sanku dhinto ka dibna lagu qaboojiyo haanta biyaha.

Heerkulka aag kasta ee qaabaynta extrusion waa sida soo socota:

Aagga 1:90 ℃;Aagga laba 140 darajo 5 ℃;Saddex aag 160 darajo 5 ℃;Afar aag 170 darajo 5 ℃.

4. Taxadarrada ka hortagga tuubada PVC:

1. si toos ah u samaynta budada extrusion, heerkulka extruder wuxuu ku saabsan yahay 5 ℃ ka hooseeya alaabta granular.

2. Marka lagu daro dhexroorka yar (φ60mm hoos) ee tuubada qaboojinta faaruq uma baahna in lagu afuufo hawada cufan, dhexroorka weyn ee qaboojinta maran waa in lagu afuufo tuubada hawo cufan, si loo xaqiijiyo saxnaanta iyo xasiloonida cabbirka dhexroorka tuubada.U fiirso cadaadiska xasilloon ee hawo ciriiri ah.

3. U fiirso xasilloonida xawaaraha jiidista oo iska ilaali isbeddelka dhexroorka tuubada ama dhumucda gidaarka ee ay keento xasillooni darro jiidista.

4. Haddii mishiinka uu xidhnaado wakhti dheer, waa in la burburiyaa oo la nadiifiyaa si looga fogaado dhibaatooyinka burburka.

Qaababka tixraaca tuubada hufan ee kala duwan

1, tuubo hufan oo aan sun ahayn

PVC 100 DOP 45

ESBO 5 Dioctyl tin laurate 2

Kaalshiyam-zinc ka kooban xasiliye 1

Plasticizer waxa kale oo uu dooran karaa glycol butyl phthalate ester (BPBG) iyo citric acid three butyl ester

2. Tuubo hufan

PVC 100 epoxy plasticizer 5

DOP 30 Organotin 1.5

DBP 10 Barium stearate, cadmium 1

DOA 5

3. Tuubo hufan

PVC 100 ESBO 5

DOP 45 barium - xasiliye dareere cadmium 2

4. Tuubo hufan

PVC 100 Zinc stearate 0.05

Cadmium stearate 1 DOP 28

Barium stearate 0.4 DBP 18

Stearate sunta rasaasta 0.1 oo ah wakiilka biliijing

5. Tuubo hufan

PVC 100 MBS 5 ~ 10

DOP 30 C-102 3

15 Hst 0.3 DBP

6. Tuubada dhiiga lagu shubo ee aan sunta ahayn

PVC 100 ESBO 5

45 Hst DOP 0.5

AlSt ZnSt 0.5 0.5

Paraffin 0.2

7. Tuubada beerta hufan

PVC 100 DOP 40

ED3 10 Barium - xasiliyaha dareeraha cadmium 1

Chelator 0.3 stearic acid 0.3

8. Tuubo hufan oo cabitaan ah

PVC 100 DOP (ama DOA) 50

Calcium-zinc xasiliye dareere ah 3 Stearic acid 0.5

9. Tuubada dhiiga lagu shubo iyo bacda balasmaha

PVC 100 DOP 45

ESBO 5 ~ 10 Calcium zinc dareeraha xasiliyaha 1.5