Kev txiav txim siab los ntawm ntau qhov kev tshuaj xyuas, feem ntau cov neeg ua haujlwm hauv tsev yuav tsum ua cov khoom ua los ntawm txhuas. Cov khoom siv no tau siv dav vim nws yog qhov ruaj khov thiab tiv taus rau sab nraud cuam tshuam. Txawm li cas los xij, cov hlau no tsis muaj cov khoom nplaum. Yog li ntawd, yog tias cov khoom siv txhuas txuas nrog ib leeg, oxide zaj duab xis yuav tsim rau ntawm lawv qhov chaw thiab kev sib txuas yuav nyuaj. Qhov no piav qhia vim li cas ntau tus neeg pib xav txog cov lus nug ntawm yuav ua li cas ua cov nplaum txhuas rau txhuas.
Raws li cov kws ua haujlwm paub txog, txhawm rau ua kom muaj kev sib txuas zoo, koj yuav tsum yuav cov kua nplaum tshwj xeeb. Tsis zoo li lwm cov nplaum sib tov, nws muaj pes tsawg leeg yog supplemented nrog tshwj xeeb additives, lub luag hauj lwm ntawm uas yog los tiv thaiv kev tsim ntawm ib tug oxide zaj duab xis. Yuav ua li cas rau cov nplaum txhuas rau txhuas, koj yuav kawm los ntawm kab lus no.
About gluing method
Txawm hais tias muaj qhov zoo tsis txaus ntseeg vim qhov txhuas tau txais txiaj ntsig zoo, cov hlau no kuj muaj qhov tsis zoo. Nws xausqhov tseeb hais tias thaum lub sij hawm fastening tus tswv yuav muaj teeb meem. Vim lub fact tias txhuas yog mos heev, cov pa bolted sib txuas yuav tsis ua hauj lwm. Cov kws tshaj lij txuas cov khoom siv txhuas ua ke los ntawm kev vuam.
Txawm li cas los xij, txoj kev no yuav tsum muaj argon thiab cov cuab yeej nyuaj uas tus kws tshaj lij tuaj yeem ua haujlwm nrog. Yog li ntawd, kev siv vuam txias feem ntau yog siv. Cov txheej txheem no muab ob txoj kev sib txuas. Thawj siv lub hauv paus ntsiab lus ntawm diffusion. Thaum lub sij hawm ntawm kev sib txuas ntawm ob qhov chaw nyob rau hauv qhov kev txiav txim ntawm lub siab, qhov interpenetration ntawm lawv cov molecules tshwm sim. Hauv lwm lo lus, lawv sib xyaw ua ke. Txoj kev no yog qhov nyuaj heev thiab siv hauv kev lag luam. Txoj kev sib txuas thib ob yog gluing siv cov cuab yeej tshwj xeeb, uas yuav tham tom qab.
About polyurethane nplaum
Rau cov neeg uas tsis paub yuav ua li cas aluminium tuaj yeem ua ke ua ke, peb tuaj yeem pom zoo kom sib tov raws li polyurethane. Cov kua nplaum no yog ib- thiab ob-cov khoom. Nyob rau hauv thawj rooj plaub, muaj pes tsawg leeg ntawm cov nplaum yog sawv cev los ntawm ib tug polyurethane. Solvent tsis suav nrog. Cov adhesives no yog siv rau qhov chaw raug ntawm cov khoom yuav tsum tau koom nrog. Ua ntej gluing, qhov chaw yog pre-moistened nrog dej. Txij li cov khoom siv ob lub ntsiab lus muaj cov tawv tawv, nws tsis tas yuav kho cov txhuas nrog dej. Raws li cov kws tshaj lij, cov khoom siv ob lub ntsiab lus yog tus cwj pwm los ntawm kev nce ntxiv ntawm plasticity thiab kub tsis kam. Cov kev sib txuas muaj zog heev. Tsis tas li ntawd, lawv tsis cuam tshuam los ntawm roj, fungi thiabpwm.
About resin formulations
Yog tias koj xav paub yuav ua li cas ua kua nplaum txhuas rau txhuas, siv ob lub ntsiab lus raws li epoxy. Qhov peculiarity ntawm cov khoom no yog tias lawv tiv taus qhov kub thiab txias thiab muaj cov khoom nplaum zoo dua qub. Nrog lawv cov kev pab, cov ntaub ntawv uas muaj qhov sib txawv thermal expansion indicators, As ntoo, porcelain thiab pob zeb.
Nyob ntawm cov nplaum nplaum
Raws li kev kho mob, epoxy resin adhesives raug faib ua ob pawg:
- txhais tau tias tuaj yeem tawv ntawm qhov kub siab tshaj 1 txhiab degrees. Scope ntawm daim ntawv thov - industrial enterprises.
- Cov tshuaj tiv thaiv txias txias. Adhesives tuaj yeem tawv ntawm qhov kub tsis tshaj + 350 degrees.
Thaum siv ob lub ntsiab lus epoxy adhesives, nws raug nquahu kom ntxiv cov tawv tawv hauv qhov sib txawv. Dab tsi ua kua nplaum rau cov nplaum nplaum rau txhuas? Xav paub ntxiv txog qhov no tom qab.
Yuav ua li cas nplaum?
Tightly aluminium nrog aluminium yog txuas los ntawm kev sib xyaw hauv qab no:
Mastix. Gluing zoo yog ua tau ntawm qhov kub ntawm -50 txog +145 degrees. Txuas ferrous thiab non-ferrous hlau. Kuj tseem siv los ua sealant. Txhawm rau ua tus tswv ntawm 50-gram lub raj mis, koj yuav tsum them 30 rubles
- Cosmopur 819. Polyurethane raws li kev sib xyaw. Los ntawm txoj kev ntawm cov cuab yeej no, qhov khoob raug tshem tawm thiab cov ces kaum yog glued. Tus nqi ntawm ib lub raj los ntawm 300ml ntawm kua nplaum - 500 rub.
- Astrohim ACE-9305. Siv nyob rau hauv tib qhov kub thiab txias li Mastix. Nrog kev pab los ntawm cov khoom no, cov tawg tawg yog rov ua kom meej. Piv txwv li, carving. Kua nplaum raug nqi ntau dua: 80 rubles.
- "Epoxy Metal Moment". Nws yog ob lub ntsiab lus nplaum siv los khi cov txhuas, ntoo, marble thiab iav nto ua ke. Cov cuab yeej no kuj yog siv los tshem tawm ntau qhov khoob thiab tawg. 0.05-liter pob nqi 350 rubles
- Abro Steel. Cov cuab yeej no yog siv nyob rau hauv rooj plaub uas yuav tsum tau kho cov khoom siv huv huv lossis cov tso tsheb hlau luam uas khaws cov kua dej. Kev txiav txim los ntawm kev txheeb xyuas, cov kua nplaum yog qhov rhiab heev rau kev huv ntawm qhov chaw yuav tsum tau koom nrog. Ib pob 57-gram raug nqi 150 rubles.
- Permatex Cold Weld. Qhov no ob lub ntsiab lus epoxy-raws li kub-resistant nplaum nplaum muaj cov khoom siv hluav taws xob tua hluav taws. Cov cuab yeej tiv taus ntev (tsis siab tshaj 149 degrees) thiab lub sijhawm luv (txog 177) kub. Lub polymerization yuav siv sij hawm tsis tshaj 15 feeb. Tus nqi ntawm ib pob 56-gram yog 300 rubles.
- "Titan". Heev ib tug nrov nplaum. Tsim cov seam resistant rau mechanical stress. Qhov sib tov yog muag hauv fwj ntawm 310 ml rau 250 rubles.
- Wurth Liquid Metal. Nws yog German-ua cyanoacrylate nplaum nplaum. Rau cov neeg uas xav paub yuav ua li cas ua cov nplaum nplaum rau txhuas, cov kws tshaj lij pom zoo cov cuab yeej no. Lub peculiarity ntawm qhov sib tov yog tias nws khovnws ceev heev. Koj tuaj yeem ua haujlwm nrog cov khoom siv hlau thiab cov ntaub ntawv pob tshab. Ib lub raj mis 20 grams raug nqi 100 rubles.
- Cosmo PU-200. Tsis muaj cov kuab tshuaj nyob rau hauv cov khoom siv polyurethane ob qho no. Judging los ntawm kev txheeb xyuas, lub resulting seam yog heev kub resistant. Tom qab nws khov tag, nws tuaj yeem pleev xim. Adhesives yog siv rau kev sib txuas ntawm txhuas, gypsum board, ntoo, polished fiberglass thiab laminate. Tsis tas li ntawd rov qab sib dhos seams, qhov dav uas tsis pub tshaj 8 hli. Tus nqi ntawm ib lub raj mis 900 grams: 800 rubles
Yuav siv cov sib tov li cas?
Rau cov neeg uas tsis paub yuav ua li cas ua cov nplaum txhuas hauv tsev, koj yuav tsum ua raws li cov lus qhia hauv qab no:
Xeb thiab av raug tshem tawm ntawm qhov chaw los koom nrog siv cov ntawv xuab zeb zoo los yog txhuam
- Ntxiv mus, qhov chaw tau kho nrog acetone.
- Tom qab ntawd koj yuav tsum tau tos ib pliag kom thaj chaw qhuav.
- Hauv ib lub thawv cais, sib tov kua nplaum thiab tawv tawv. Koj yuav tsum tau txais homogeneous viscous mass.
- Cov nplaum sib tov yuav tsum tau siv rau saum npoo ntawm cov dots lossis nyias strips. Tom qab ntawd cov khoom yog nias nruj nreem rau ib leeg. Hauv txoj haujlwm no, lawv yuav tsum tau kho thiab sab laug rau 15-20 feeb.
Yog tias koj muaj ntau dhau, koj tuaj yeem tshem nws nrog ib daim ntaub so hauv cov kuab tshuaj.
In xaus
Ua haujlwm nrog cov nplaum, koj yuav tsum taunco ntsoov tias cov tshuaj no muaj tshuaj lom heev. Yog li ntawd, nws raug nquahu kom muab cov nplaum nplaum rau hauv qhov chaw zoo-ventilated. Nws yuav pab tau rau siv hnab looj tes, lub tshuab ua pa thiab tiv thaiv cov iav yas.
