Ntsuas cov ntsiab lus: "me me ua pob" yuav ua tau hauv pem teb nrog lub sib tsoo hlau. Qhov zoo ntawm "me me pits" yog pluag. Qee tus muag khoom siv graphite los ua "lub qhov muag", uas nyuaj rau txhom tau. Tsuas yog siv txhuam txhuam me xwb thiaj li siv tau.
Xyuas hauv qab ntawm lub lauj kaub: me me hauv qab ntawm lub lauj kaub, ceev ceev qhov hluav taws kub, txuag roj thiab txuag lub sij hawm.
Xyuas cov thickness: thickness ntawm lub lauj kaub yog nyias, thiab nyias nyias zoo. Thaum lub cim yog tsim, lub qab ntawm lub lauj kaub yuav tig mus rau saum ntuj. Siv koj cov ntiv tes los tawm tsam qhov nruab nrab ntawm qhov yeeb yaj kiab, thiab ntaus nrog ib yam khoom nyuab. Lub suab nrov ntawm lub lauj kaub, qhov zoo dua ntiv tes ntawm kev sib tw. Paub cov "metallography": Lub lauj kaub hlau nrog xeb phom qhia tias lub sij hawm ntev dua, thiab ntev dua cov hlau thawb muab, zoo dua.
Tshuaj tej kas tham yog feem ntau ua los ntawm cov yas. Lawv kuj raug hu ua cov yas thauv khi thiab cov yas thauv yas. Lawv tau ua los ntawm cov mis mos thiab tshuab moulded. Lawv muaj ntau yam xim thiab zoo nkauj hauv qhov tsos. Lawv yuav tiv taus cov kua qaub thiab alkali, khov thiab tawm. Fading, non-deformation thiab lwm yam kev ua kom pom cov ntim qhauj, tam sim no yog qhov zoo tshaj plaws kev xaiv rau kev thauj mus los ntev ntawm cov khoom siv tshuaj cov khoom ntim.
Cov tshuaj yas muaj qhov zoo ntawm ib daim duab (polyethylene) (PE) tsis muaj pob qij txha, ua haujlwm tsis zoo, tiv thaiv kev laus, hnyav, tsis muaj tov, kua qaub thiab alkali, lub neej ntev kev ua haujlwm, thiab ua raws li cov qauv kev tswj fwm. Qhov kev ua tau zoo dua li cov tshuaj ntsuab FRP. Cov thawv, cov yas ntim yas, cov hlua khi hlua thiab lwm cov thawv.
Tshwj xeeb, ib qho compound muaj ib pawg cyano (CN) uas cov pa roj carbon atom thiab nitrogen atom tau sib raug zoo los ntawm kev sib koom ua dej hydrazone. Qhov kev tso dej hydrazone no muab rau pawg neeg cyano ib tus neeg muaj kev ruaj ntseg, uas nws tshwm sim raws li tag nrho hauv cov tshuaj tiv thaiv li niaj zaus. Vim tias pab pawg no muaj cov khoom sib xws sib xws rau cov halogen, nws yog feem ntau hu ua pseudohalogen. Feem ntau, cov txheej txheem inorganic yog cais rau hauv cyanogen, thiab cov organic compound yog muab cais ua ib cov nitrile. Cov kab mob cyanide uas feem ntau paub tias yog cyanide, feem ntau hu ua Shannai (los ntawm lus Askiv txhais lus "Cyanide"), uas yog hais txog cov ntsev tsis sib tov uas muaj cyanide iyion (CN-), uas yog xam tau tias yog ntsev ntawm hydrocyanic acid (HCN). Feem ntau cov potassium cyanide thiab sodium cyanide. Lawv yog cov tshuaj lom heev thiab yog li ntawd paub zoo rau lub ntiaj teb. Lwm cov organic cyanide yog tsim los ntawm kev sib koom ua ke pab pawg neeg cyano nrog lwm cov atom rau hauv nruab nrab ntawm ib qho nyiaj. Nyob ntawm hom kev nqes tsev, cov organic cyanides tuaj yeem muab cais ua cov nitrile (C-CN) thiab isonitrile (C-NC). Correspondingly, cyano hu ua nitrile (-CN) los yog isonitrile (-NC). . Cov cyanides uas feem ntau yog hydrocyanic acid, sodium cyanide thiab potassium cyanide.
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