Video: Koj puas tuaj yeem ua kom sov lub tog raj kheej kawm tiav?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Tau kawm tiav lub tog raj kheej ua cua sov ? Yog, txawm tias cov qauv iav, uas yog ua los ntawm borosilicate iav, ua tau noj ntau dua kub dua li cov yas lub tog raj kheej . Borosilicate iav cylinders tau tiv taus qhov kub ntawm 329 ° F (165 ° C) thiab tseem tiv taus thermal shock.
Kuj nug, koj puas tuaj yeem ua kom sov lub khob?
Feem ntau lab iav tawg vim yog thermal shock - ob lub khob kub nrog dej txias lossis iav txias nrog dej kub. Txawm li cas los xij, yog tias koj ua cua sov tus khob dej tsis tu ncua rau 40 feeb, nws twv yuav raug hu tsis xav tsis thoob rau kev tawg. Koj yuav tsum tau boil qias neeg beakers txhua hnub tsis muaj lawv popping rau koj.
Qhov thib ob, qhov txawv ntawm lub beaker thiab lub tog raj kheej kawm tiav yog dab tsi? Cov Qhov txawv ntawm ib tug Beaker & ib Kawm tiav lub tog raj kheej . Ob leeg kawm tiav cylinders thiab beakers yog cov khoom kuaj iav uas muaj cov haujlwm tshwj xeeb. Kawm tiav cylinders feem ntau yog qhov tseeb dua ntawm kev nyeem cov ntim ntawm cov kua sab hauv. Beakers yog zoo dua rau nplawm thiab sib tov kua.
Tom qab ntawd, ib tug kuj yuav nug, yuav ua li cas yog ib tug kawm tiav lub tog raj kheej?
Cov qhov tseeb specification ntawm kawm tiav cylinders yog coj los ua ib feem pua ntawm tag nrho cov nplai, uas yog, ntim ntawm cov kab sau saum toj kawg nkaus. Rau chav kawm B kawm tiav cylinders , cov hais qhov tseeb ntawm 1% txhais tau tias 100ml lub tog raj kheej thaum sau kom raug yuav raug mus txog 100 ± 1ml.
Koj puas tuaj yeem boil dej hauv Pyrex beakers?
Txawm tias kim borosilicate kuaj iav yuav feem ntau tawg yog tias koj nug nws ua ntau dhau, zoo li cov kua txias rau bunsen burner. Koj yuav tej zaum tau nrog boil kua rau hauv chav tsev kub pyrex (los yog tsawg kawg koj ua tau ob peb xyoos dhau los) tab sis qhov cub, roj lossis hluav taws xob, kub ntau dua boiling dej.
Pom zoo:
Lub luag haujlwm ntawm ib lub tog raj kheej ua haujlwm yog dab tsi?
Ib lub tog raj kheej ua yeeb yam yog lub cav uas cov kua ua haujlwm ntawm ib sab nkaus xwb. Nws ua haujlwm raws li qhov hnyav ntawm lwm lub tog raj kheej, lossis lub zog ntawm lub log, uas ua rau kom tsav lub piston rov qab mus rau lwm qhov. Cov hom thooj voos kheej kheej no feem ntau pom muaj nyob rau hauv cov tshuab reciprocating
Dab tsi yog qhov nyias nyias lub tog raj kheej?
Thaum lub raj nyias nyias los yog lub tog raj kheej raug rau sab hauv lub hoops thiab longitudinal stress yog tsim nyob rau hauv phab ntsa. Rau qhov sib npaug ntawm cov phab ntsa nyias hauv qab phab ntsa thickness tsawg dua 1/20 ntawm lub raj lossis lub tog raj kheej txoj kab uas hla
Dab tsi yog qhov precision ntawm ib lub tog raj kheej kawm tiav?
Qhov kev faib me tshaj plaws ntawm lub tog raj kheej kawm tiav no yog 1 mL. Yog li ntawd, peb qhov kev nyeem ntawv yuam kev yuav yog 0.1 mL lossis 1/10 ntawm qhov sib faib tsawg tshaj plaws. Kev nyeem ntawv tsim nyog ntawm qhov ntim yog 36.5 0.1 mL. Tus nqi sib npaug yuav yog 36.6 mL lossis 36.4 mL
Vim li cas koj thiaj siv lub tog raj kheej kawm tiav es tsis txhob siv lub beaker?
Cov cylinders kawm tiav yog tsim los rau kev ntsuas qhov tseeb ntawm cov kua dej nrog qhov yuam kev me dua li beakers. Lawv yog nyias dua li lub beaker, muaj ntau ntau cov qhab nia kawm tiav, thiab tsim kom muaj nyob rau hauv 0.5-1% yuam kev. Yog li ntawd, tus txheeb ze ntawm tus beaker no yog qhov tseem ceeb rau yuav luag txhua qhov chaw kuaj
PET lub raj mis puas tuaj yeem ua kom sov?
Cov lus teb luv luv yog tsis yog, koj ua tsis tau. Nws yog ib qho kev txaj muag vim PET lub raj mis tuaj yeem muaj qhov zoo ntawm iav zoo, nqa elegance rau cov khoom lag luam thiab ntxiv cov nqi lag luam vim nws zoo li zoo heev thiab sib zog thauj khoom dua iav. Txawm li cas los xij, tus qauv PET yas tsis haum rau cov khoom kub kub