Cov txheej txheem tseem ceeb ntawm kev tsim cov roj hmab hose suav nrog cov txheej txheem sib xyaw roj hmab, cov hlua thiab cov txheej txheem canvas, roj hmab raj txheej txheem, txheej txheem vulcanization, thiab lwm yam. Roj hmab hoses nrog ntau cov qauv thiab cov pob txha sib txawv muaj cov txheej txheem sib txawv thiab cov khoom siv molding rau cov pob txha txheej.
Txij li cov yeeb nkab tag nrho cov roj hmab tsis muaj txheej txheej pob txha, nws tsuas yog yuav tsum tau extruded los ntawm extruder; txhawm rau clamp lub hose, lub tshuab molding yuav tsum tau siv los qhwv daim kab xev rau hauv txheej roj hmab; thaum lub tshuab nqus tsev nqus tau tsim, nws yog thawj qhov txhab nrog cov hlau kauv, thiab tom qab ntawd siv cov ntaub tshwj xeeb weaving tshuab lossis tshuab winding winding; knitting hose yuav tsum siv lub tshuab knitting, thiab lwm yam.
Txoj kev molding ntawm lub raj yas yog feem ntau raws li seb cov tub ntxhais siv los yog tsis siv, thiab muab faib ua cov txheej txheem coreless thiab cov txheej txheem cored (xws li cov qauv mos thiab tawv tawv).
Centerless sib sau
Rau coreless roj hmab molding, cov cuab yeej yog ib tug extrusion molding tshuab (feem ntau siv cov ntsia hlau extruder), thiab cov pob txha txheej thiab txheej roj hmab txheej yog ncaj qha tsim nyob rau hauv lub extruded puab roj hmab raj.
Cov khoom siv roj hmab yog nplawm, sib tov, plasticized thiab compacted nyob rau hauv lub chim los ntawm qhov chaw ntawm lub extrusion ntsia hlau, thiab ces tsiv mus rau cov kev taw qhia ntawm lub tshuab taub hau. Cov khoom ntawm ib yam zoo li extruded los ntawm lub qhov ncauj yog muab faib los ntawm cov ntsia hlau extruder. Muaj ob hom pub thiab txias pub, cov qub pub cov roj hmab preheated sawb ntawm qhib cov roj hmab sib tov, thiab tom kawg pub cov khoom noj uas tsis yog cua sov.
Zoo li lub siab
Tub ntxhais roj hmab hose txoj kev txhais tau hais tias cov roj hmab hose yog tsim rau ntawm ib tug nyuaj core thiab ib tug mos core. Txhawm rau kom ntseeg tau tias cov roj hmab hose nyob rau hauv siab thaum lub sij hawm vulcanization, cov roj hmab hose yog qhwv nrog ib daim ntaub ntub dej ua ntej vulcanization, thiab cov roj hmab hose yog qhwv nrog hlua los yog txhuas, thiab ces vulcanized.
Sulfur tuaj yeem ua vulcanized los ntawm cov cua kub ncaj qha los yog ua kom cov vulcanization tas li los ntawm vulcanization tso tsheb hlau luam. Lub staple fiber hose yog ncaj qha ntxiv rau cov kua nplaum thiab ces extruded rau daim ntawv. Nws cov txheej txheem ntau lawm yog qhov yooj yim, thiab nws tuaj yeem maj mam hloov cov hlua khi thiab cov ntaub hose. Niaj hnub nimno roj hmab hose ntau lawm tshuab ua rau nws tsis tu ncua thiab tsis siv neeg. Kev siv cov thermoplastic lossis yas tuaj yeem txuag cov txheej txheem vulcanization thiab ua kom yooj yim rau cov txheej txheem ntau lawm.
