Cov txheej txheem tsim khoom ntawm chlorinated polyethylene sheath rau cov xov hlau thiab cables:

1. Sib tov
Piv rau cov qauv ib txwm ntawm chloroprene roj hmab. Chlorinated polyethylene tsis xav tau plasticization thiab tsis xav tau khaws cia tom qab plasticization. Cov kua dej ntxiv hauv cov mis chlorinated polyethylene tuaj yeem do thiab nqus tau los ntawm lwm cov hmoov thaum lub sijhawm batching, uas tuaj yeem zam kev ntxuav thiab ntws thaum lub sijhawm sib tov tiag tiag. Qhov kub ntawm vulcanization ntawm chlorinated polyethylene yuav tsum tshaj 160 ℃ Kev tsim khoom tas mus li tuaj yeem ua tiav nrog dej txias, tab sis qhov kub feem ntau tsis tshaj 160 ℃. Yog li tus neeg sawv cev vulcanizing siv hauv chlorinated polyethylene tsis tas yuav ntxiv cais los ntawm lwm cov khoom ntxiv, thiab tuaj yeem sib xyaw ncaj qha nrog lwm cov hmoov. Qhov kub sib tov xav tau rau chlorinated polyethylene yog qhov dav heev, xws li 40 ℃ txog 120 ℃, thiab yuav tsis muaj kev lo lossis hlawv ntawm cov menyuam. Thaum siv lub tshuab sib tov qhib, nws yog qhov tsim nyog los tua dej txias lossis tig rau ntawm lub pa dej raws sijhawm. Vim tias chlorinated polyethylene tsim cov zog cua sov ntau vim kev sib txhuam thaum sib tov, nws yog qhov tsim nyog los ntxiv dej txias txaus thaum sib tov hauv lub tshuab sib tov sab hauv. Qhov kub ntawm kev faib tawm feem ntau yog nruab nrab ntawm 110 ℃ thiab 120 ℃ Qhov no tso cai rau kev sib xyaw ua haujlwm ntau yam tsis muaj kev cuam tshuam tsis zoo rau qhov zoo ntawm chlorinated polyethylene.
2. Chaw nres tsheb thiab kev ua kom sov
Piv rau cov roj hmab chloroprene, cov roj hmab sib xyaw chlorinated polyethylene muaj kev ruaj khov zoo dua thiab tsis xav tau qhov kub qis. Qhov kub siab thaum lub caij ntuj sov tsis muaj kev cuam tshuam ncaj qha rau nws. Chlorinated polyethylene tsis xav tau txias thaum lub sijhawm ua kom sov, thiab qhov kub ntawm qhov ua kom sov feem ntau yog siab dua 50 ℃.
3. Ua cov ntaub thaiv rau cov xov hlau thiab cov cables
Feem ntau, cov chlorinated polyethylene siv tau rau hauv kev tsim cov hlau thiab cov hlua khi siv cov extruders ntev lossis cov extruders luv luv. Feem ntau, cov hlau thiab cov hlua khi ua los ntawm cov extruders ntev yuav ci dua, du dua, thiab muaj cov ntu hla ntau dua. Thaum extruding chlorinated polyethylene nplaum, qhov kub ntawm lub taub hau feem ntau yog nruab nrab ntawm 6 ° C thiab 90 ° C. Vim muaj kev sib txhuam kub heev thaum lub sijhawm ua kom cov chlorinated polyethylene, qhov kub hauv cov roj hmab yuav siab dua, feem ntau ntawm 90 ℃ thiab 120 ℃. Yog li ntawd, thaum siv cov extruder ntev, nws yog qhov tsim nyog los saib xyuas thiab tswj qhov kub thiab txias kom zoo kom tsis txhob hlawv cov roj hmab.
4. Cov txheej txheem sulfurization
Piv nrog rau lwm hom roj hmab uas siv ntau, qhov kub thiab txias uas xav tau rau cov txheej txheem vulcanization ntawm chlorinated polyethylene yog qhov siab heev, feem ntau ntawm 160 ℃ thiab 180 ℃. Cov kev xav tau vulcanization rau chlorinated polyethylene hlau thiab cable sheath roj hmab yog:; Thaum lub zog nqus pa yog 054 MPa, qhov kub thiab txias vulcanization yog 160 ℃ thiab lub sijhawm vulcanization feem ntau yog ntawm 25 feeb thiab 30 feeb. Thaum lub zog nqus pa yog 098MFRa, qhov kub thiab txias vulcanization yog 180 ℃ thiab lub sijhawm vulcanization feem ntau yog ntawm 6mir-10 feeb. Thaum lub zog nqus pa yog 152MPa, qhov kub thiab txias vulcanization yog 200 ℃ thiab lub sijhawm vulcanization feem ntau yog ntawm 1mir-3 feeb. Thaum lub zog nqus pa maj mam nce, qhov kub thiab txias vulcanization kuj maj mam nce, thaum lub sijhawm vulcanization txo qis. Cov roj hmab chlorinated polyethylene ua tau zoo dua tiv taus kua muag.