isicelo

Inkqubo yokuvelisa ithumbu lePVC:

Ukuxuba → ukuxova → igranulation ekhutshiweyo → ukwenza i-extrusion → ukutsala → ukujiya → ukupakisha → ukuhlolwa komgangatho → imveliso egqityiweyo

1. Ukuxova izithako

Zonke iintlobo zemathiriyeli ekrwada zilinganiswa ngokuchanekileyo kwaye zifakwe kwi-kneader ngokulandelelana okuthile.Ukondla ulandelelwano: PVC resin, plasticizer, stabilizer, lubricant.Xa ubushushu bufikelela kwi-100 ~ 110 ℃, izinto eziphathekayo zinokukhutshwa.

2.i-extrusion granulation

Le nkqubo yokulawula ubushushu, eyona ndawo iphezulu yobushushu bezinto eziphathekayo kufuneka ilawulwe phezulu kunobushushu obunyibilikayo bezinto eziphathekayo, ngaphantsi kweqondo lobushushu lokubumba, oko kukuthi, phakathi kwe-155 ~ 160 ℃.I-granulation kufuneka ifezekise injongo yokuxuba ngokupheleleyo kunye neplastiki yokuqala.

Ubushushu bommandla ngamnye wegranulator buhamba ngolu hlobo lulandelayo:

Ummandla wama-80 ~ 90 ℃;Ummandla we-130 ~ 140 ℃;Iindawo ezintathu 140 ~ 150 ℃;Ukuqala ukusuka kwi-150 ~ 160 ℃.

3. ukwenziwa ityhubhu ye-extrusion

Ubushushu bokwenziwa kwetyhubhu ye-extrusion buphezulu kancinci.Ngokubanzi, ukungafihli kombhobho kuhambelana nobushushu bokwenza.Kuluhlu oluthile lobushushu, ukucaca okuphezulu kweqondo lokushisa kulungile, kwaye ngokuphambene noko.Ngelo xesha, isantya sokutsala kunye nesantya sokupholisa siya kuchaphazela ukucaca kombhobho.Isantya sokutsala sikhulu kancinane, isantya sokupholisa sikhawuleza, kwaye ukucaca kombhobho kungcono.Isantya sokutsala ngokuqhelekileyo si-10% ~ 15% ngokukhawuleza kunesantya se-extrusion.Ukupholisa kombhobho ocacileyo kutshizwa ngamanzi abandayo kwindawo yokufa kwempumlo emva koko kupholiswe kwitanki yamanzi.

Ubushushu bezowuni nganye yokubumba i-extrusion yile ilandelayo:

Ummandla 1:90 ℃;Ummandla wesibini 140 degrees 5℃;Imimandla emithathu 160 degrees 5℃;Izowuni ezine 170 degrees 5℃.

4. Imigqaliselo ye-PVC ye-hose extrusion:

1. ngokuthe ngqo kunye nokubumba umgubo we-powder, ubushushu be-extruder bumalunga ne-5 ℃ ngaphantsi kune-granular material.

2. Ukongeza kwi-diameter encinci (φ60mm engezantsi) ye-tube yokupholisa engenanto ayifuni ukuvuthelwa emoyeni oxinzelelweyo, ububanzi obukhulu betyhubhu engenanto yokupholisa kufuneka ivuthelwe kwi-tube ixinzelelwe umoya, ukuze kuqinisekiswe ukuba ukuchaneka kunye nokuzinza kobukhulu bobukhulu betyhubhu.Nika ingqalelo uxinzelelo oluzinzileyo lomoya ocinezelweyo.

3. Nika ingqalelo ukuzinza kwesantya sokutsala kwaye ugweme ukutshintshwa kobubanzi bombhobho okanye ubukhulu bodonga olubangelwa ukungazinzi kwe-traction.

4. Ukuba umatshini uvaliwe ixesha elide, kufuneka uhlanjululwe kwaye ucocwe ukuze ugweme iingxaki zokubola.

Ifomula yesalathiso sethumbu ecacileyo eyahlukeneyo

I-1, ithumbu elingenatyhefu elibonakalayo

I-PVC 100 DOP 45

ESBO 5 Dioctyl tin laurate 2

I-calcium-zinc compound stabilizer 1

Iplastiki isenokukhetha i-glycol butyl phthalate ester (BPBG) kunye ne-citric acid ezintathu butyl ester.

2. Umbhobho ocacileyo

PVC 100 epoxy plasticizer 5

DOP 30 Organotin 1.5

DBP 10 Barium stearate, cadmium 1

I-DOA 5

3. Umbhobho ocacileyo

I-PVC 100 ESBO 5

I-DOP 45 ye-barium - i-cadmium liquid stabilizer 2

4. Umbhobho ocacileyo

PVC 100 Zinc stearate 0.05

I-Cadmium stearate 1 DOP 28

I-Barium stearate 0.4 DBP 18

I-lead stearate 0.1 isixa se-agent ye-bleaching

5. Umbhobho ocacileyo

PVC 100 MBS 5~10

DOP 30 C-102 3

15 HSt 0.3 DBP

6. Umbhobho wokutofelwa igazi ongeyotyhefu

I-PVC 100 ESBO 5

45 HSt DOP 0.5

AlSt ZnSt 0.5 0.5

Iparafini 0.2

7. Umbhobho wegadi ocacileyo

I-PVC 100 DOP 40

ED3 10 Barium – cadmium liquid stabilizer 1

I-Chelator 0.3 stearic acid 0.3

8. ityhubhu ecacileyo yeziselo

I-PVC 100 DOP(okanye i-DOA) 50

I-calcium-zinc liquid stabilizer 3 Stearic acid 0.5

9. Umbhobho wegazi kunye nengxowa yeplasma

I-PVC 100 DOP 45

ESBO 5 ~ 10 Calcium zinc liquid stabilizer 1.5