Cov txiaj ntsig ntawm cov kav dej PVC
1. Kev Thauj Mus Los: Cov khoom siv UPVC muaj qhov hnyav tshwj xeeb uas tsuas yog ib feem kaum ntawm cov hlau cam khwb cia, ua rau nws pheej yig dua rau kev xa khoom thiab teeb tsa.
2. UPVC muaj kev tiv thaiv acid thiab alkali siab, tsuas yog cov kua qaub thiab alkalis ze rau qhov saturation lossis cov neeg sawv cev oxidizing muaj zog ntawm qhov siab tshaj plaws.
3. Tsis ua hluav taws xob: Vim tias cov khoom siv UPVC tsis ua hluav taws xob thiab tsis xeb thaum raug hluav taws xob lossis electrolysis, tsis tas yuav ua ntxiv.
4. Tsis muaj kev txhawj xeeb txog kev tiv thaiv hluav taws vim nws tsis tuaj yeem hlawv lossis txhawb kev sib xyaw.
5. Kev teeb tsa yooj yim thiab pheej yig ua tsaug rau kev siv cov nplaum PVC, uas tau ua pov thawj tias ntseeg tau thiab muaj kev nyab xeeb, yooj yim siv, thiab pheej yig. Kev txiav thiab txuas kuj yooj yim heev.
6. Kev tiv taus huab cua zoo heev thiab kev tiv taus cov kab mob thiab cov pwm ua rau txhua yam ruaj khov.
7. Kev tiv thaiv me me thiab qhov nrawm ntws siab: phab ntsa sab hauv du txo qhov poob ntawm cov kua dej, tiv thaiv cov khib nyiab kom tsis txhob lo rau ntawm phab ntsa yeeb nkab du, thiab ua rau kev saib xyuas yooj yim thiab pheej yig.

Yas tsis yog PVC.
PVC yog ib hom yas uas siv tau ntau yam, xws li cov rooj tog thiab cov chaw ua vaj tse.
Yav tas los, PVC yog cov yas siv dav tshaj plaws hauv ntiaj teb thiab muaj ntau yam kev siv. Nws siv dav hauv cov ntaub ntawv siv hauv kev tsim kho, cov khoom siv hauv kev lag luam, cov khoom siv niaj hnub, tawv hauv pem teb, vuas hauv pem teb, tawv hluavtaws, cov kav dej, cov xov hlau, thiab cov cables, cov yeeb yaj kiab ntim khoom, lub raj mis, cov fibers, cov ntaub ntawv ua npuas ncauj, thiab cov ntaub ntawv kaw, thiab lwm yam.

Lub Koom Haum Ntiaj Teb Kev Noj Qab Haus Huv Lub Koom Haum Thoob Ntiaj Teb rau Kev Tshawb Fawb Txog Kab Mob Cancer tau sau cov npe ntawm cov tshuaj carcinogens rau lub Kaum Hli 27, 2017, thiab polyvinyl chloride yog ib qho ntawm peb hom tshuaj carcinogens ntawm daim ntawv teev npe ntawd.
Amorphous polymer nrog cov qauv crystalline, polyvinyl chloride yog ib qho polymer uas hloov ib qho chlorine atom rau ib qho hydrogen atom hauv polyethylene. Daim ntawv no tau teeb tsa raws li nram no: n [-CH2-CHCl] Feem ntau ntawm VCM monomers tau koom ua ke hauv kev teeb tsa taub hau-rau-tus tw los tsim cov polymer linear hu ua PVC. Tag nrho cov carbon atoms tau koom ua ke los ntawm cov ntawv cog lus thiab tau teeb tsa hauv tus qauv zigzag. Txhua lub carbon atom muaj sp3 hybrid.

Cov saw hlau PVC muaj cov qauv syndiotactic luv luv. Qhov syndiotacticity nce thaum qhov kub polymerization poob qis. Muaj cov qauv tsis ruaj khov suav nrog cov qauv taub hau-rau-lub taub hau, saw branched, ob chav bond, allyl chloride, thiab tertiary chlorine hauv cov qauv polyvinyl chloride macromolecular, uas ua rau muaj qhov tsis zoo xws li kev tiv thaiv thermal deformation qis thiab kev tiv thaiv kev laus. Cov qhov tsis zoo no tuaj yeem kho tau tom qab zoo li sib txuas.

Txoj kev sib txuas PVC:
1. Siv cov kua nplaum tshwj xeeb los txuas cov yeeb nkab PVC; yuav tsum tau co cov kua nplaum ua ntej siv.
2. Yuav tsum ntxuav lub qhov (socket) thiab cov yeeb nkab PVC. Yog tias muaj qhov chaw tsawg dua ntawm cov qhov (socket) ces qhov sib txuas ntawm cov qhov yuav tsum du dua. Tom qab ntawd, txhuam cov kua nplaum rau hauv txhua lub qhov (socket) thiab txhuam cov kua nplaum ob zaug rau sab nraud ntawm txhua lub qhov (socket). 40 vib nas this tom qab ziab, muab cov kua nplaum tso rau hauv thiab xyuam xim seb lub sijhawm ziab yuav tsum nce lossis txo raws li huab cua.
3. Cov kav dej yuav tsum tau muab rov qab ntim rau hauv 24 teev tom qab kev sib txuas qhuav, cov kav dej yuav tsum tau teeb tsa rau hauv qhov av, thiab txwv tsis pub ntub. Thaum rov qab ntim, khaws cov pob qij txha, sau thaj chaw ib puag ncig cov kav dej nrog xuab zeb, thiab rov qab ntim ntau.
4. Yuav txuas cov yeeb nkab PVC rau cov yeeb nkab hlau, ntxuav qhov sib txuas ntawm cov yeeb nkab hlau uas tau sib txuas, ua kom sov kom cov yeeb nkab PVC mos (tsis txhob hlawv), thiab tom qab ntawd muab cov yeeb nkab PVC ntxig rau hauv cov yeeb nkab hlau kom txias. Qhov tshwm sim yuav zoo dua yog tias cov hoops ua los ntawm cov yeeb nkab hlau raug muab tso rau hauv.
Cov kav dej PVCtuaj yeem txuas nrog ib qho ntawm plaub txoj hauv kev:
1. Yog tias cov kav dej tau raug kev puas tsuaj loj heev, tag nrhocov kav dejyuav tsum tau hloov. Ib lub qhov txuas ob lub qhov (double-port connector) siv tau los ua qhov no.
2. Siv cov tshuaj yaj los tiv thaiv cov kua nplaum uas xau. Thaum no, cov dej ntawm cov kav dej loj raug ntws tawm, ua rau muaj qhov siab ntawm cov kav dej tsis zoo ua ntej cov kua nplaum raug txhaj rau hauv qhov chaw xau. Cov kua nplaum yuav raug rub mus rau hauv cov qhov vim yog qhov siab ntawm cov kav dej, ua rau cov kua nplaum tsis xau.
3. Lub hom phiaj tseem ceeb ntawm cov txheej txheem kho lub tes tsho yog qhov xau ntawm lub plhaub los ntawm cov kab nrib pleb me me thiab qhov. Cov yeeb nkab caliber tib yam tam sim no raug xaiv rau kev txiav ntev thiab ntev ntawm 15 txog 500 px. Sab hauv ntawm lub plhaub thiab sab nraud ntawm cov yeeb nkab kho tau txuas nrog cov pob qij txha raws li cov txheej txheem siv. Tom qab siv cov kua nplaum, qhov chaw raug ua kom ntxhib, thiab tom qab ntawd nws raug khi kom ruaj khov rau qhov chaw xau.
4. Yuav kom tsim tau cov kua resin siv cov tshuaj epoxy resin curing agent, siv cov txheej txheem iav fiber. Nws yog woven sib npaug zos rau ntawm qhov chaw ntawm cov kav dej lossis qhov chaw xau tom qab raug ntub rau hauv cov kua resin nrog daim ntaub iav fiber, thiab tom qab kho, nws dhau los ua FRP.