Video: Dab tsi yog cov kuab tshuaj txuas txuas?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
hnyav - weld sib koom tes . hnyav - weld sib koom tes . Ib lub cev sib koom ua los ntawm kev sib kis ntawm cov cement ntawm ob qhov chaw yas yuav tsum tau koom nrog. Cov cement ua tshuaj lom nrog cov chaw no, yog li ua kom cov khoom tawg.
Hauv qhov no, qhov hnyav yog dab tsi?
Solvent vuam , kuj hu ua hnyav cementing los yog hnyav kev sib khi, yog txheej txheem ntawm koom nrog cov khoom ua los ntawm cov thermoplastic resins los ntawm kev thov a hnyav muaj peev xwm ntawm softening qhov chaw yuav tsum tau koom, thiab nias lub softened nto ua ke. Cov yeeb nkab thiab fittings yog sib koom ua ke los ntawm kev siv tshuaj fusion.
Tsis tas li ntawd, kuv puas tuaj yeem koom nrog cov kuab tshuaj txuas rau thawb kom haum? Compression pov tseg fittings . Pov tseg yeeb nkab compression fittings muaj txiaj ntsig zoo li lawv tau siv los txuas hnyav weld cev to thawb haum pov tseg yeeb nkab. Ntawm no peb muaj ob daim ntawm cov yeeb nkab pov tseg, ob qho tib si yog 32mm tab sis ib qho yog hnyav weld thiab lwm yam yog rub fit . Rau koom cov no ua ke peb yuav yuav siv qhov compression haum
Ib yam li ntawd, qhov hnyav weld yeeb nkab yog dab tsi?
Yog, Push Fit yog ua los ntawm Polypropylene thiab Solvent Weld yog ua los ntawm ABS Yas, lossis qee zaum PVC. Ob leeg muaj zog thiab ruaj khov, tab sis ob qho tib si yuav tsum tau muab lub tsho tiv thaiv xim thaum siv sab nrauv.
Ntev npaum li cas cov hlau txuas ntev?
Solvent weld cement yog zoo nkauj sai thaum nws los txog rau ziab thiab nws yuav pib tawm yuav luag tam sim ntawd nrog rau feem ntau cov chaw tsim tshuaj paus variations yog waterproof nyob rau hauv ib ncig ntawm 10-20 mins. Feem ntau tseem yuav kho tau zoo li ntawm 8 teev, tab sis nws ib txwm pom zoo kom tawm mus rau 24 teev ua ntej siv.
Pom zoo:
Cov kuab tshuaj raws li cov tshuaj ntxuav yog dab tsi?
Solvent Cleaners Solvent-based cleaners tseem nrov hauv cov ntawv thov kev lag luam vim lawv lub zog ntxuav; lawv tshem tawm cov tuab, ci rau cov roj, av, ntim, cov kua dej, thiab cov roj. Qee qhov piv txwv ntawm kev ntxuav cov kuab tshuaj muaj zog yog acetone, methyl ethyl ketone, toluene, nPB, thiab trichlorethylene (TCE)
Dab tsi ntawm cov kuab tshuaj yog roj av ether polar lossis nonpolar)? Piav?
Cov roj av ether yog sib xyaw ntawm ntau cov hydrocarbons, feem ntau yog pentane thiab hexane, uas nyob rau hauv lem tsuas yog tsim los ntawm Carbon thiab Hydrogen, (uas tam sim no qhov tseem ceeb ntawm ze electronegativity), yuav luag tsis muaj polar
Cov kuab tshuaj raws li cov tshuaj yog dab tsi?
Lo lus 'hloov' yog siv rau ntau cov tshuaj lom neeg uas siv los yaj lossis dilute lwm yam khoom lossis cov khoom siv. Lawv feem ntau yog cov kua organic. Ntau cov kuab tshuaj kuj tseem siv los ua cov tshuaj intermediates, fuels, thiab ua cov khoom ntawm ntau yam khoom
Dab tsi yog qhov yuav tsum tau xav txog hauv kev xaiv cov kuab tshuaj rau kev rho tawm?
Cov hauv qab no yuav tsum tau txiav txim siab thaum xaiv cov kuab tshuaj rau kev lag luam: hnyav zog (kev xaiv); polarity; boiling kub - qhov no yuav tsum tsis muaj nyob rau hauv thiaj li yuav pab kom tshem tawm cov kuab tshuaj los ntawm cov khoom; latent cua sov ntawm vaporization;
Dab tsi ntawm cov kuab tshuaj yog acetonitrile?
Acetonitrile yog cov tshuaj sib xyaw nrog cov mis CH3CN. Cov kua tsis muaj xim no yog cov organic nitrile yooj yim tshaj plaws. Nws yog tsim los ua ib qho byproduct ntawm acrylonitrile manufacturing. Nws yog siv los ua ib qho polar aprotic hnyav hauv cov organic synthesis thiab hauv kev ua kom huv ntawm butadiene