2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13
Lub sij hawm "anaerobic" yog qiv los ntawm microbiology los ntawm kev tsim kho kev lag luam. Nws qhia txog chav kawm ntawm cov kab mob me me uas tsis xav tau oxygen ua haujlwm. Raws li, qhov tseem ceeb ntawm kev ua haujlwm ntawm lub foob tuaj yeem yog tus yam ntxwv - rau polymerization thiab tawv, nws tsis xav tau huab cua, vim tias tag nrho cov txheej txheem no tshwm sim yam tsis muaj kev koom nrog oxygen.
Peculiarities
Muaj ntau hom sealant sib txawv rau kev ua haujlwm nyuaj.
Lawv txawv ntawm ib leeg hauv ntau txoj hauv kev:
- viscosity;
- kua;
- qib ntawm kev nkag mus rau saum npoo.
Cov neeg sawv cev lawv tus kheej tuaj yeem tsim los kaw cov xov, haum, flange, lossis bushing. Txhawm rau txiav txim siab qhov kev siv ntawm cov muaj pes tsawg leeg, koj yuav tsum kawm lub rooj uas nyob ntawm pob khoom.
Raws li qib kev muaj zog, txhua qhov kev sib sau tuaj yeem faib ua:
- Txuj - siv rau cov ntaub ntawv uas tsis cuam tshuam rau kev co thaum tsis xav tau kev tshem tawm lossis tshem tawm cov khoom nquag. Xws li cov sealants yooj yim dua rau tshem tawm yam tsis siv cov cuab yeej tshwj xeeb. Tus nqi yog nyob ntawm thaj tsam ntawm 4 - 9 Nm.
- Qhov nruab nrab - siv rau cov pob qij txha uas raug rau huab cua siab lossis muaj kev vibration muaj zog thaum ua haujlwm thiab kho ua haujlwm. Kev tshem tawm cov khoom no xav tau cov cuab yeej tshwj xeeb lossis tso cua sov ncaj qha nrog hluav taws. Tus nqi yog 15 - 22 Nm.
- Nce - feem ntau yog siv los kho cov xov sib txuas uas yuav tsis raug tshem tawm lossis txiav txuas rau ntau xyoo. Cov qib no yog qhov ruaj khov tshaj plaws thiab tuaj yeem tiv taus lub zog thiab kev co muaj zog heev. Txhawm rau txiav tawm qhov kev sib txuas, yuav tsum muaj lub zog tsawg kawg 55 - 60 Nm.
Qhov chaw tsawg dua ntawm cov ntsiab lus los koom nrog, qhov siab dua cov cuab yeej nkag mus ntawm cov nplaum yuav tsum yog. Raws li, qhov sib xws ntawm cov muaj pes tsawg leeg thiab nws cov viscosity yuav tsum tsawg.
Cov xim ntawm cov ntawv foob qhia txog kev siv ntawm nws thiab qee yam khoom muaj txiaj ntsig ntawm kev sib xyaw. Tam sim no, koj tuaj yeem yuav cov kua nplaum hauv xiav, ntsuab, liab, txiv kab ntxwv thiab daj.
Tsis tas li, kev sib sau ua ke tau muab faib ua pawg hauv qab no:
- Siv hauv kev sib txuas lus ntawm cov cua sov kom kaw cov yeeb nkab. Lawv txawv nyob rau hauv uas lawv ua tau zoo zam qhov kub thiab dej kub.
- Hermetic compounds, tiv thaiv kev cuam tshuam ntawm cov tshuaj nrog ib puag ncig txhoj puab heev. Ua kom sov hauv qhov ntau ntawm 60 - 150 ° C.
- Ua kom tawv tawv tawv nrog txhim kho cov khoom nplaum.
Khoom
Txhua qhov txiaj ntsig zoo ntawm anaerobic sealant tau ua tiav los ntawm kev tshuaj lom tshuaj ntawm cov tshuaj uas ua rau nws. Nws suav nrog oligomers lossis polymers los ntawm pawg acrylic (muab qhov xav tau sib xws thiab viscosity) + cov khoom pib (muab cov polymerization nrawm).
Tau txais ntawm cov hlau saum npoo av, qhov sib xyaw ua kom tiav txawm tias qhov me me thiab tsis tseem ceeb tshaj plaws, thiab tom qab ntawd, nrawm nrawm, ua ib hom txheej txheej roj hmab. Hauv qab txheej no, txheej txheem polymerization tshwm sim nrog kev pab ntawm cov radicals. Lub foob ua kom tawv tawv maj mam, pib los ntawm lub sijhawm cov pa tso tawm kom ntws mus rau qhov nqaws. Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm xws li lub foob yog nws qhov siab tiv taus, uas tiv thaiv cov xov los ntawm xoob nws cov fixation.
Siv ntau xyoo ntawm kev paub hauv kev tsim kho kev lag luam, cov tuam txhab tsim khoom tau tsim los tsim cov khoom siv uas muaj tus lej ntawm qhov tsis txaus ntseeg:
- txhim kho txhim khu kev qha cov kav dej;
- siab zog thiab hnav tsis kam;
- tiv thaiv kev co kev co, uas feem ntau yog qhov laj thawj rau kev puas tsuaj ntawm kev sib txuas lus;
- nyab xeeb hauv kev sib cuag nrog dej haus;
- tom qab cov kua nplaum ua kom tawv, nws tsis tuaj yeem yaj nws hauv dej ntxiv lawm;
- kev sib txuas ntawm cov ntaub ntawv ntawm cov qauv sib txawv;
- yooj yim siv - txawm tias ib tus neeg tsis muaj kev paub dhau los tuaj yeem lis daim ntawv thov;
- tiv taus huab cua siab - tsis pub ntau tshaj 50 atmospheres;
- tiv thaiv kab mob, tshuaj hnyav, pleev xim thiab roj;
- tiv thaiv cov hlau los ntawm kev hloov pauv corrosive;
- kev pab lub neej ntev, uas txawm nyob rau qhov xwm txheej tsis zoo yuav kav ntev txog 4 xyoos;
- qhov kub siab sib xyaw uas tsis ua rau qis txawm tias kub ntawm + 300 ° C.
Txawm li cas los xij, tsis yog txhua yam zoo meej ntawm no ib yam. Muaj ntau yam zoo, cov sealant tseem muaj qee qhov tsis zoo:
- Cov kev sib txuas lus kho los ntawm qhov sib xyaw no nyuaj heev rau kev txuas lossis tshem tawm. Qee lub sij hawm, txhawm rau tshem lub foob, nws yuav tsum tau rhaub nrog hluav taws ncaj qha. Hauv qhov sib piv, ib qho fum-daim kab xev lossis daim phuam yuav raug ntxuav kom yooj yim dua.
- Tus nqi siab. Heev feem ntau, cov neeg siv khoom tsis kam yuav anaerobic sealant vim nws tus nqi siab. Tab sis yog tias peb coj mus rau hauv tus as khauj kev lag luam txaus ntawm kev noj ntawm cov muaj pes tsawg leeg, tom qab ntawd cov nyiaj siv yuav yog qhov ncaj ncees
- Lub foob los ntawm cov tuam txhab sib txawv yuav tsis zoo ib yam, lawv cov muaj pes tsawg leeg yuav sib txawv hauv qhov ntim ntawm cov tshuaj nquag.
Koj yuav tsum tau ua haujlwm nrog cov ntawv foob nruj me ntsis ua raws cov lus qhia . Tsis txhob tuav cov pob qij txha ntub, vim qhov xav tau ua tiav tsis tuaj yeem ua tiav. Yog li ntawd, nws yog ib qho tseem ceeb kom ua kom qhuav qhov chaw ua haujlwm thiab tshem tag nrho cov dej noo. Kuj tseem muaj qhov txwv hauv txoj kab uas hla ntawm kev sib txuas lus - cov kav dej yuav tsum tsis pub ntau tshaj 10 cm txoj kab uas hla, qhov dav yog qhov nyuaj rau txheej txheem thiab siv sijhawm ntev kom qhuav.
Scope ntawm daim ntawv thov
Oxygen-free sealant adhesives tau siv dav hauv ntau thaj chaw:
- Rau kev xauv thiab kaw xov, hloov ntau yam khoom siv kho tshuab. Tam sim no, kev sib xyaw ua ke yog qhov yooj yim tshaj plaws thiab txhim khu kev qha los txhim kho cov xov sib txuas tiv thaiv kev cuam tshuam ntawm kev poob siab, poob siab thiab kev co. Vim nws qhov ib nrab ua kua sib xws, nws ua tiav tag nrho qhov chaw thiab muaj peev xwm faib cov khoom sib npaug raws qhov tig, tiv thaiv kom tsis txhob muaj cov pa roj lossis cov kua.
- Txhawm rau thaiv thiab ruaj ntseg cov pob qij txha. Qhov no suav nrog txhua qhov kev sib txuas hlau xws li cov ntoo thiab cov kabmob. Cov pa tsis muaj oxygen tso cai rau ntu kom zaum nrog qhov sib txawv, tsis muaj kev hloov pauv hnyav, thaum tswj lub zog txiav qhov kawg.
- Qhov cuab lub zog sib txawv ntawm cov yeeb nkab sib txuas: flanged thiab threaded. Tsis zoo li cov cuab yeej siv tshuab, uas lub sijhawm dhau los raug kev puas tsuaj los ntawm kev vibration thiab kev nyuaj siab, decompose hauv qhov chaw txhoj puab heev thiab ua rau thaj chaw ib puag ncig puas tsuaj, lub foob tuaj yeem tuaj yeem nyob hauv nws lub xeev qub tau ntev thiab khov kho cov yeeb nkab.
- Impregnation ntawm cov khoom ntxeem tau, welded nqaws thiab nias cov khoom. Cov gel tshem tawm qhov hws me me, kab nrib pleb thiab lwm yam tsis xws luag hauv kev siv vuam, nrum thiab nias.
Yuav siv li cas?
Raws li tau hais ua ntej, cov tshuaj anaerobic kho tau sai heev. Txawm li cas los xij, txawm tias qhov no, nws tsis nyuaj rau ua haujlwm nrog nws thiab txawm tias tus pib tshiab tuaj yeem tiv nrog nws. Txhawm rau ua tiav cov txiaj ntsig xav tau, koj tsuas yog yuav tsum ua raws cov lus qhia ntawm cov cai rau kev siv cov khoom lag luam, vim tias lub foob tau muag rau kev siv thiab tsis tas yuav tau npaj ua ntej lossis sib xyaw nrog cov kuab tshuaj. Nws yog qhov zoo dua los ntxuav qhov chaw ua haujlwm ua ntej, thiab tom qab ntawd degrease nws - qhov no yuav ntxiv dag zog rau cov tshuaj tiv thaiv thiab cov muaj pes tsawg leeg yuav teeb tsa zoo dua.
Cov lus qhia rau kev siv:
- Peb nqa lub ntim nrog cov khoom sib xyaw thiab co kom huv, yog li sib xyaw cov ntsiab lus.
- Peb qhib lub thawv thiab siv cov khoom nyob ib puag ncig ntawm qhov txuas.
- Tom ntej no, peb ua tiav cov ntsia hlau hauv cov ntsiab lus uas tau siv lub foob.
- Qhov tshaj yuav tsum tau muab tshem tawm tam sim ntawd, tsis tas tos kom muaj pes tsawg leeg kom qhuav.
- Cia lub sealant qhuav, tso nws li ib nrab teev (cov gel qhuav hauv ntau txoj kev, nyob ntawm seb txoj kab uas hla ntawm cov tshuaj tau ua tiav thiab ntsuas kub nyob hauv chav) thiab tom qab ntawd txheeb xyuas nws nyob rau hauv siab ntawm 10 atmospheres. Yog tias huab cua puag ncig tsis ncav cuag + 15 ° C, lub foob yuav tsum tau ua kom sov. Yog tias tom qab kuaj xyuas tsis muaj qhov xau, tom qab ntawd ib hnub tom qab koj tuaj yeem ua qhov ntsuas qhov ua tau zoo nyob hauv siab ntawm 40 atmospheres.
Rau kev sib koom siab tshaj plaws, kev sib xyaw tuaj yeem siv rau ob qho chaw, piv txwv li sab hauv thiab sab nraud . Tab sis qhov no yuav tsum tau ua tib zoo kom tsis txhob siv cov foob ntau dhau. Yog tias cov kav dej yas tau ua tiav, tom qab ntawd ua ntej ua haujlwm lawv yuav tsum tau kho nrog tus neeg ua haujlwm tshwj xeeb. Ntau zaus, txhuam tau suav nrog lub ntim, uas yooj yim heev rau txheej txheem thov.
Cov chaw tsim khoom thiab tshuaj xyuas
Anaerobic sealant tau tsim thiab tsim los ntawm ob peb lub tuam txhab, yog li qee qhov nyuaj yuav tshwm sim thaum yuav khoom los ntawm cov neeg siv khoom. Qee qhov feem ntau thiab nrov npe ntawm anaerobic sealant yog:
Loctite . Lub tuam txhab tsim cov kua nplaum thiab cov xov sib khi. Lawv tiv thaiv kom tsis txhob muaj pa lossis kua thiab ua kom lub zog sib koom tau zoo heev. Tus nqi ntawm cov qauv ntawm cov khoom lag luam no yog nyob ntawm thaj chaw uas lawv tau siv thiab cov yam ntxwv zoo li cas. Piv txwv li, thoob ntiaj teb sealant Loctite 577 raug nqi 1,760 rubles rau 50 ml, thaum Loctite 542, tsim rau cov xov me me, raug nqi ntau dua 1,800 rubles rau tib ntim.
" Tau Txais No. 3 " - nruab nrab-lub zog anaerobic sealant nrog homogeneous thixotropic sib xws thiab xim xiav tsis muaj kev suav nrog. Cov nplaum yog tiv taus cov tshuaj xws li dej, roj sib piv, roj, kua hydraulic, ethylene glycol sib txuas, alkaline thiab kua qaub daws. Nws tau siv hauv kev ua haujlwm nrog txhua yam hlau, tsis hais txog qhov muaj txheej txheej tiv thaiv. Piv txwv ntawm daim ntawv thov: cov txheej txheem valve, npog, txuas ntawm lub cav sib txuas sab hauv, kaw lub caj dab, sib dhos cov khoom siv sib txuas lus (cua sov, muab roj, muab dej), kav dej. Nws tiv taus siab thiab kev co zoo. Tus nqi yog 300 rubles. Analog los ntawm Loctite hauv qab tus lej 243.
SantechMaster . Lub tuam txhab hauv tsev tsim cov xim liab thiab xiav nyob rau hauv daim ntawv ntawm cov gel, uas los nrog txhuam. Nws yog siv feem ntau hauv kev ua haujlwm nrog roj thiab dej sib txuas mus txog 5 cm. Hauv ib chav nrog chav sov (18-19 ° C), cov kab sib dhos tuaj yeem kuaj tau 15 feeb tom qab sib dhos hauv qab qhov siab ntawm 0.5 atmospheres. Tom qab 60 feeb nws tuaj yeem ua rau nce mus rau 10 atmospheres, thiab hauv ib hnub txog 40. Cov sealant tsis ruaj khov rau cov tshuaj tua kab mob, roj av, dej cawv, siab thiab kub. Lub raj mis nrog kwv yees li 15 ml ntawm cov khoom yuav raug nqi tsawg kawg 150-200 rubles.
" Siv " - sealant los ntawm Manta Ecologica lub tuam txhab. Nws kuj tseem siv feem ntau hauv kev tiv thaiv kev tsim kho tshuab: kav dej, roj thiab dej. Cia peb ua haujlwm nrog dej haus. Lub sijhawm tua kuj tseem nyob ntawm chav sov. Nws yog lub zog nruab nrab nruab nrab, tab sis cov khoom lag luam nrog cov ntawv ua ntej "S" (liab) twb yog lub foob ruaj khov, uas yuav tsum tau ua kom sov nrog lub tshuab ziab plaub hau lossis lub teeb rau kev tshem tawm. Thaum disassembling, nws tsis xav tau cua sov ntxiv. Yeej, tag nrho lwm cov yam ntxwv yog tus qauv. Tus nqi ntawm ib lub raj mis ntawm 100 ml yog li 800 rubles.
Permatex . Sealants los ntawm lub tuam txhab no tau tsim tshwj xeeb rau lub flange, ua kom ntseeg tau qhov txhaws qhov me tshaj qhov ntxhib thiab kev sib cuag tsis sib xws ntawm qhov chaw sib tsoo. Tom qab kaw cov ntsia liaj qhov rooj, cov khoom sib xyaw yuav tshem tag nrho cov huab cua thiab tig mus ua yas, uas yog qhov ua tau ntev. Raws li tau hais los saum no, kua nplaum feem ntau yog siv rau kev sib txuas ntawm cov iav, cov av, hauv lub tog raj kheej thaiv thiab ntsaws qhov khoob me me ntawm cov hlau. Kev siv cov khoom sib xyaw yuav nce qhov ntsuas qhov ntsuas, hloov qhov txuas ntxiv ntawm qhov txuas nrawm, tiv thaiv kev xeb, thiab ua kom tshem tawm tau yooj yim dua. Nws tseem faib cov khoom sib npaug thoob plaws thaj chaw ib puag ncig thiab ua rau kev hloov pauv ntawm cov rog ntawm ib feem kom raug dua, tiv thaiv cov av thiab ua kom yooj yim txheej txheem ntawm kev teeb tsa shims ntawm qhov chaw ntsug. Lub raj mis ntawm 50 ml yuav raug nqi tus neeg siv khoom txog 700 rubles.
Tias 728 - Lub zog nruab nrab tsis muaj oxygen tsis muaj gel nplaum. Siv los txuas qhov sib txuas ntawm cov tshuab hluav taws xob hydraulic thiab pneumatic. Cov khoom sib khi sib khi cov xov ntawm cov hlau, tiv thaiv lawv los ntawm kev puas tsuaj ntawm lub tshuab thiab kev co tsis. Yuav tsum tau cua sov thaum tshem tawm. Cov yam ntxwv ntawm polymerization: cov kua nplaum ua kom sov hauv qhov kub ntawm + 20-25 ° C, thiab qis dua qhov kub hauv chav, qeeb dua cov ntawv foob yuav tawv. Cov khoom siv tsis tau siv rau ntxiv cov yas yas, cov pa oxygen thiab cov tshuab lossis cov sib txuas nrog cov tshuaj oxidation muaj zog. Tsim tshwj xeeb rau cov qauv hlau qauv. Ua ntej ua haujlwm, qhov chaw yuav tsum tau ntxuav thiab degreased. Tus nqi ntawm lub raj mis yog 800 rubles.
Tswv yim & Tricks
Yog tias nws tsim nyog los cais cov ntu ruaj, cov foob tuaj yeem raug tshem tawm tam sim tom qab ua haujlwm lossis qee lub sijhawm tom qab tawv. Txhawm rau rhuav tshem, koj yuav xav tau cov ciaj ntswj uas hloov tau thiab tshuab ziab plaub hau yog tias cov tshuaj muaj zog.
Cov lus qhia tshem tawm:
- peb tig rau ntawm kev tsim tshuab ziab plaub hau thiab ncaj qha cov cua kub ntawm huab cua mus rau qhov nqaws;
- tos kom txog thaum pawg pib tawg thiab tom qab ntawd tshem nws nrog cov khaub ncaws zoo tib yam;
- nrog tus ciaj ntswj uas kho tau thiab tshem tawm qhov txuas.
Tsis tas yuav tsum tau ua kom huv huv tshem tawm qhov seem, txheej tshiab tuaj yeem siv ncaj qha rau ntawm qhov qub.
Thaum xaiv lub foob, xav txog cov hauv qab no:
- kev ua haujlwm ntawm kev sib txuas;
- tej xov nta;
- ntawm qhov ntsuas kub twg yuav siv cov gel;
- dab tsi yog qhov xav tau rau lub zog ntawm kev sib txuas yav tom ntej;
- ntau npaum li cas nws yuav tsim nyog los tshem tawm cov kev sib txuas;
- yam khoom xov yog ua los ntawm.
Pom zoo:
Cov Khoom Sib Txuas Rau Cov Kab Hluav Taws Xob LED: Cov Ces Kaum Sib Txuas Yam Tsis Muaj Kev Sib Txuas Thiab Lwm Yam Khoom Siv Txuas Rau Txuas Cov Kab Hluav Taws Xob. Nws Yog Dab Tsi Thiab Yuav Ua Li Cas Txuas Cov Kab Xev Ua Ke?
Cov khoom sib txuas rau LED strips - nws yog dab tsi thiab yuav ua li cas txuas cov kab sib txuas rau ib leeg? Lawv yog dab tsi? Yuav xaiv tus qauv zoo li cas? Yuav siv lawv li cas? Dab tsi yog cov yam ntxwv ntawm cov ces kaum txuas tsis sib haum thiab lwm cov hloov pauv rau txuas cov kab diode?
Cov Kav Dej Foob: Cov Dej Tsis Sib Haum Rau Cov Kav Dej Thiab Cov Kav Dej Phwj Tuaj, Cov Khoom Siv Rau Kev Sib Khi Dej Thiab Dej Phwj Tuaj
Plumbing Sealant yog tus kws tshaj lij hauv kev tiv thaiv dej. Cov kav dej uas tsis muaj dej thiab cov kav dej phwj tuaj sib xyaw yuav tsum siv rau qhov ua tau zoo tshaj plaws? Yuav ua li cas kom ua tiav cov txheej txheem rau kev sib khi chav?
Xov Sealant: Sealing Yeeb Nkab Sib Txuas Hauv Cov Kav Dej, Cov Kav Dej Khoom Siv Rau Cov Kav Dej, Loctite Ntau Lawm
Cov xov foob yog npaj rau kev sib khi cov yeeb nkab sib txuas hauv cov kav dej. Yuav xaiv nws li cas? Yam khoom tsim khoom tsim nyog tau them nyiaj mloog thiab cov lus qhia dab tsi uas cov kws tshaj lij muab rau ua haujlwm nrog lawv?
Polyurethane Sealant: Ib Qho Khoom Ua Kua Nplaum Rau Kev Sib Txuas, Kev Siv Cov Khoom Tsis Muaj Dej Rau Ib 1 M, Cov Khoom Thiab Thov Izhora Cov Khoom
Polyurethane sealant yog cov khoom siv tau zoo nrog cov nplaum zoo. Yuav siv cov khoom sib xyaw ua ke ib leeg? Yuav suav li cas kev siv cov khoom tsis muaj dej tsis haum rau 1 teev tsaus ntuj?
Ceresit Kua Nplaum: Cov Yam Ntxwv Zoo Ntawm Cov Khoom Rau Cov Vuas, Cov Khoom Siv Xaiv CM-11 Thiab Ntxiv Rau, Siv Cov Kua Nplaum Rau 1 M2, Ntim Cov Khoom Nrog Ntim 25 Kg
Ceresit kua nplaum yog siv rau cov pobzeb thiab tau tsim los ua haujlwm nrog txhua hom vuas. Qhov sib txawv ntawm cov qauv ntawm cov khoom CM-11 thiab ntxiv yog dab tsi? Dab tsi yog cov khoom lag luam tshwj xeeb rau cov pob zeb pob zeb ntuj, mosaics thiab cov vuas luaj pob zeb pob zeb?
