Lub Hom Phiaj thiab Khoom Ntawd PVC
Jun 06, 2018
PVC muab faib ua PVC thiab PVC. Ntawm lawv, nyuab PVC nyiaj rau li 2/3 ntawm kev ua lag luam, thiab cov nyiaj PVC muag rau 1/3. Feem ntau siv rau hauv PVC hauv pem teb, qab nthab, thiab tawv nqaij, tab sis vim lub mos mos muaj softening agent (uas yog qhov sib txawv ntawm cov PVC thiab cov PVC PVC), yooj yim los txhaws, tsis yoojyim txuag, yog li nws siv khwv tau txwv. PVC tsis muaj softener, yog li nws yog saj zawg zog, yooj yim rau cov duab, tsis txhav, tsis yog lom thiab tsis muaj paug, thiab muaj lub neej ntev txee. Yog li ntawd, nws muaj kev loj hlob zoo thiab daim ntawv muaj nqis. PVC yog txuas ntxiv mus rau PVC. Kev siv tshuaj pleev PVC yog siv los ua cov yas ntim yas lim, uas yog siv rau ntim ntim ntawm txhua yam khoom siv, ces nws kuj yog hu ua zaj duab xis thiab nplaum, uas yog siv ntau yam lag luam xws li cov ntaub ntawv hauv tsev, ntim thiab tshuaj. Ntawm lawv, lub tuam tsev cov ntaub ntawv kev lag luam rau feem ntau feem, uas yog 60%, tom qab ntim kev lag luam, thiab lwm yam kev lag luam me me. Nta: kev ua zoo txhua yam, kev ua tau zoo hluav taws xob, muaj zog acid thiab alkali tiv thaiv, stability tshuaj zoo, tab sis qis softening taw tes.
Molding cov yam ntxwv:
1. Cov khoom siv amorphous, kev nqus dej noo, kua yog pluag. Txhawm rau txhawm rau txhim kho liquidity, tiv thaiv npuas thiab yas tuaj yeem qhuav. Ua ntej ntawm cov pwm gear system yuav tsum luv, lub qhov rooj ntawm qhov tsim nyog loj yog loj, tsis muaj lub ces kaum. Pwm txias, plating txheej chromium;
2. Vim nws cov yam ntxwv ntawm corrosive thiab fluidity, nws yog qhov zoo tshaj plaws los siv cov cuab yeej tshwj xeeb thiab pwm. Tag nrho cov khoom yuav tsum muab nrog ntau hom thiab ntau ntawm cov khoom siv ntxiv raws li xav tau;
3. Yooj yim rau decompose, nrog hlau ntawm 200c kub. Tooj tooj liab yog yooj yim rau decompose, thiab corrosion tshwm sim thaum decomposing.
4. Thaum siv cov thawv hnoos tsis muaj cav, lub aperture yuav tsum loj kom tiv thaiv tau tuag lub siab. Tsis txhob hnav cov tais diav, yog tias muaj pob hau yuav tsum tau muab pov tseg.
PVC (polyvinyl chloride) yog ib hom ntawm nplaim hluav taws, kev ruaj ntseg stability zoo, tsuas yog ua rau qis tensile keej sab hauv kev siv zog. Tib lub sijhawm, nws cov khoom siv kuj muaj xws li muaj zog, siab rigidity thiab siab tawv. Qhov ua hauj lwm kub yog li ntawm -15c rau-60c.
Cov ntsiab lus ntawm PVC: muaj zog corrosion ua hauj: qhov tsim nyog corrosion kuj khoom siv hauv cov kev lag luam tshuaj. Yooj yim ua: yooj yim txiav, welding thiab dabtsi yog khoov. Siab muaj zog, siab nruj thiab siab tawv; Rwb hluav taws xob hluav taws xob zoo; Kev ruaj ntseg zoo; Nws tus kheej extinguishing; Dej nqhis dej tsawg; Yooj yim rau lo, yooj yim rau xim. Tus nqi tsawg tsawg.
Kev Siv Tua Tsiaj Txhaum: Cov Kuaj Cov Khoom Siv Txhaum Cai, Cov Kuaj Cov Khoom Siv Txhaj Tshuaj, Cov Khoom Ua Si Rau Cov Khoom Siv Txhaj Tshuaj, Cov Kuaj Cov Hluav Taws Xob, Cov Hluav Taws Xob, Cov Hluav Taws Xob, airway engineering project, ntawv sau, cov ntaub ntawv hauv tsev, thiab lwm yam.