Slate loj, lub ntau yam, qhov zoo thiab qhov tsis zoo

Sai li sai tau raws li qhov kev siv ntawm lub tsev yog Laj tiav, ntau yog pib xav txog cov qauv ntawm lub-ru tsev. Niaj hnub no muaj ib tug lossis loj tus naj npawb ntawm tau variants ntawm ru tsev siv ntau technologies. Txawm nws yog, cov neeg xav slate. Qhov no vov tsev cov ntaub ntawv uas yog muaj zog heev thiab muaj peev xwm mus ua hauj lwm, nyob rau hauv kev xyaum, rau ntau xyoo. Kuv xav tias muaj coob tus neeg tau pom cov laus, ua nyob rau hauv lub Soviet Union ntau lub tsev nyob nrog ntsuab nrog lub sij hawm, tab sis tsis puas slate.

Yuav ua li cas yog Slate?

Thaum uas yog tib yam cov ntaub ntawv uas muaj pes tsawg leeg, slate loj tej zaum yuav txawv. Lub thickness kuj yuav varied. Feem ntau nws yog hom twg los ntawm 0.5 mus 0.9 cm. Lub dav ntawm daim ntawv yog lig nyob rau ntawm lub xov tooj ntawm tsis. Feem ntau lawv yog 6 leej los yog 8.

qhov ntev

Lub ntsiab nam uas yuav tsum raug xam tias yog thaum xaiv ib tug loj slate. Qhov no yog yooj yim piav hais tias: paub lub caij nyoog ntev ntawm daim ntawv, koj yuav tau xam cov kev tsim nyog tooj ntawm vov tsev cov ntaub ntawv uas tsis muaj teeb meem.

Yog li, qhov loj ntawm lub 8-yoj slate tej zaum yuav txawv. Nws tag nrho cov nyob rau hauv uas chaw tsim tshuaj paus ua qhov no los yog hais tias cov ntaub ntawv uas. Tab sis rau cov feem ntau yog ib feem ntawm tej daim ntawv loj yog 113 rau 175 cm.

Loj 6 Slate yoj ib tug me ntsis tsawg. Nws feem ntau 112,5 rau 175 cm. Qhov ntawd yog, qhov txawv nruab nrab ntawm ob los xij ntawm yuav luag tsis muaj. Nws yuav zoo li uas ntau tsis, ntau thiab ntau thiab tsawg. Tab sis nyob rau hauv qhov tseeb tsis yog cov ntaub ntawv. Qhov no yog vim hais tias lawv muaj nyob rau compactly nyob rau hauv vosmivolnovom, piv txwv li qhov kev ncua deb ntawm ob uas nyob ib sab tsis yog tsawg tshaj li shestivolnovom. Yog li ntawd, yog hais tias koj xav hloov ib sab mus rau lwm lub, koj yuav tsis vam meej, vim hais tias tsis yuav tsis tau tib yam.

zoo

Raws li nrog rau feem ntau vov tsev cov ntaub ntawv, Slate muaj zoo thiab qhov tsis zoo. Nws lub ntsiab zoo yog cov nram qab no:

• High durability. Qhov no cov ntaub ntawv uas yog yooj yim muaj peev xwm txhawb nqa cov luj ntawm ib tug neeg, uas tsis yog, piv txwv li, los xij ntawm bituminous vov tsev slate.

• Ntev pab lub neej. Qhov tseeb yog ib qho yooj yim los ua pov thawj tshaj ntawd thiab niaj hnub no peb yuav saib tau lub tsev nrog lwm tus Soviet slate.

• Hluav Taws kuj. Nws tsis yog cov, nws muaj peev xwm yuav siv tau nyob rau high school uas muaj feem yuav.

• Muaj. Tsis tshua muaj nqi rau tej khoom yuav pab tau txo tus nqi ntawm manufactured siv.

shortcomings

Lub ntsiab disadvantages yog:

• Cov kev txwv loj ntawm lub slate, piv txwv li Tsuas muaj ib tug ob peb kev xaiv rau cov khoom siv no.

• Muaj asbestos, uas yog finely dispersed khoom, tej yam tsis zoo rau tus tib neeg ua pa system. Yog li ntawd, thaum lub sij hawm installation thiab tuav slate nws yog ib qho tseem ceeb los tiv thaiv lub qhov ntswg thiab qhov ncauj nrog ib tug qhov ncauj. Nyob rau hauv nws qhaj ntawv, koj yuav tau siv ib ntub dej gauze los yog khi rau ntawm lub ntsej muag soaked daim ntawm daim ntaub.

Tam sim no koj paub tias dab tsi yog ib tug slate, dab tsi yog nws cov ntsiab zoo thiab disadvantages. Paub qhov loj ntawm lub slate, nws feem ntau kev hloov kho, koj yuav tau xam yuav tsum tau npaum li cas ntawm cov ntaub ntawv uas nyob rau hauv lub ru tsev ntawm koj lub tsev yooj yim, lub hom phiaj rau koj mus cawm tau considerably.