YUAV UA LI CAS TEMPERED GLASS?

Mark Ford, tus thawj saib xyuas kev tsim kho ntawm AFG Industries, Inc., piav qhia:

Tempered iav yog hais txog plaub lub sij hawm muaj zog tshaj li "zoo ib yam," los yog annealed, iav. Thiab tsis zoo li annealed iav, uas tuaj yeem tawg mus rau hauv jagged shards thaum tawg, tempered iav tawg rau hauv me me, tsis muaj teeb meem. Yog li ntawd, tempered iav yog siv nyob rau hauv cov cheeb tsam uas tib neeg kev nyab xeeb yog ib qho teeb meem. Daim ntaub ntawv muaj xws li sab thiab nram qab qhov rais hauv tsheb, qhov rooj nkag, da dej thiab tub enclosures, racquetball tsev hais plaub, patio rooj tog, microwave ncu thiab skylights.

Txhawm rau npaj iav rau cov txheej txheem tempering, nws yuav tsum xub txiav mus rau qhov loj me. (Kev txo lub zog los yog cov khoom tsis ua haujlwm tuaj yeem tshwm sim yog tias muaj kev ua haujlwm, xws li etching lossis edging, tshwm sim tom qab kev kho cua sov.) Cov iav tom qab ntawd tshuaj xyuas qhov tsis zoo uas tuaj yeem ua rau tawg ntawm txhua kauj ruam thaum lub sij hawm tempering. Ib qho abrasives xws li sandpapertakes ntse npoo tawm ntawm iav, uas yog tom qab ntxuav.
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Tom ntej no, lub iav pib txheej txheem kev kho cua sov uas nws mus los ntawm lub qhov cub tempering, txawm nyob rau hauv ib lub batch los yog tas mus li pub. Lub qhov cub ua kom sov lub khob rau qhov kub ntawm ntau tshaj 600 degrees Celsius. (Cov txheej txheem kev lag luam yog 620 degrees Celsius.) Cov iav tom qab ntawd dhau los ua cov txheej txheem txias txias hu ua "quenching." Thaum lub sij hawm tus txheej txheem no, uas kav li vib nas this, lub siab-siab cua blasts nto ntawm lub iav los ntawm ib tug array ntawm nozzles nyob rau hauv txawv txoj hauj lwm. Quenching ua kom txias rau sab nrauv ntawm lub khob sai sai dua qhov chaw. Raws li qhov nruab nrab ntawm lub khob txias, nws sim rub rov qab los ntawm qhov chaw sab nrauv. Raws li qhov tshwm sim, qhov chaw tseem nyob hauv qhov nro, thiab cov npoo sab nrauv nkag mus rau hauv compression, uas muab tempered iav nws lub zog.

Cov iav hauv nro tawg txog tsib zaug yooj yim dua li nws ua hauv compression. Annealed iav yuav tawg ntawm 6,000 phaus ib square inch (psi). Tempered iav, raws li tsoomfwv cov lus qhia, yuav tsum muaj qhov compression ntawm 10,000 psi lossis ntau dua; nws feem ntau tawg ntawm kwv yees li 24,000 psi.

Lwm txoj hauv kev los ua cov iav tempered yog tshuaj tempering, uas muaj ntau yam tshuaj sib pauv ions rau ntawm lub khob kom thiaj li tsim compression. Tab sis vim tias txoj kev no raug nqi ntau dua li kev siv lub qhov cub kub thiab quenching, nws tsis yog siv dav.

 

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Image: AFG INDUSTRIES
KEV KAWM NTAWVNws suav nrog kev xuas nrig ntaus kom paub tseeb tias lub khob tawg mus rau hauv ntau qhov me me, zoo ib yam. Ib tus tuaj yeem paub tseeb tias lub khob tau raug tempered zoo raws li tus qauv hauv cov iav tawg.

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Kev lag luam
GLASS INSPECTORtshuaj xyuas ib daim ntawv ntawm tempered iav, nrhiav npuas, pob zeb, khawb lossis lwm yam tsis zoo uas tuaj yeem ua rau nws tsis muaj zog.


Post lub sij hawm: Mar-05-2019

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