Silicone compound pwm siab: kev specifications

Silicone compound yog ib qho zoo tagnrho cov ntaub ntawv uas rau qhov siv thiab ua tuaj pwm fossils Lifecasting thiab lwm yam nyuaj khoom. Raws li kua latex, nws muab ib qho yooj yim, saj zawg zog, siab ncaj ncees lawm. Tsis tas li ntawd nws muaj ntxiv zoo - ib tug ntev lub neej thiab kuj mus tshuaj thiab decomposition. Qhov no yog qhov pom zoo cov ntaub ntawv uas rau zus tau tej cov kav ntev ntaub ntawv ntawm ib qho tseem ceeb kuaj. Silicone pwm rau lub plaster tau nyob rau hauv tsawg lub sij hawm tshaj lub looj pwm, yog tias koj siv lub "ceev" catalysts. Lub tsuas drawback yog tias nws yog kim kim dua latex, thiab tsis yog li ntawd elastic, ua rau rupture thiab kev puas tsuaj.

Muaj pes tsawg leeg ntawm ib yam roj hmab khoom

Qhov no cov ntaub ntawv uas muaj pob zeb ntais muab tshuaj txhuam raws li ib puag thiab ib tug platinum catalyst, uas accelerates lub hardening.

Thaum tsim ntaub ntawv siv ib tug silicone compound ntshiab, liab, daj, dawb dawb thiab lwm yam xim. Lub hardener tej zaum kuj muaj ib tug txawv palette los yog yuav tsis muaj kob.

Tom qab nws lub ob yam rau chav tsev kub silicone muaj pes tsawg leeg yuav nyuaj thiab yuav rubbery tsos. Nruab nrab curing lub sij hawm rau feem ntau - nruab nrab ntawm 18-24 teev, tab sis lub hardening lub sij hawm yuav muaj nuj nqis txo los ntawm kev siv high-kev ua tau zoo catalysts.

Hom ntawm silicone tebchaw

Feem ntau roj hmab tebchaw siv los tsim pwm - qhov no RTV, RTV-2 thiab HTV. Tsis zoo li roj hmab RTV (chav tsev kub vulcanizing) silicone HTV yuav tsum tau solidification kub tej yam kev mob siab tshaj 100 ° C.

Ntawm cov neeg uas tsim silicone compound, txhua leej txhua tus yog sim ua ib tug ntau ntawm silicones thiab catalysts nrog txawv viscosity, xim thiab lwm yam nta.

Muaj ob lub ntsiab chav kawm ntawm RTV-silicones

1. Tin tshwmsim silicones.

2. Silicones rau platinum catalysts.

Txhua yam ntawm lawv nws muaj nws qhov zoo thiab qhov tsis zoo. Tin catalyzed silicones yog feem ntau pheej yig dua thiab yooj yim siv. Lawv muaj ib tug viscosity ntawm tsawg rau nruab nrab, yog li cov khoom flow nyob ib ncig ntawm lub qhov dej. Rau hauv sib piv, platinum suppressed ntau tebchaw pom nyob rau hauv cov xwm, nyob rau hauv particular leej faj, tin, amines, tshiab khiv manufactured polyester, epoxy los yog urethane roj hmab cov khoom. Txawm tias tom qab lub txheej tsab xov xwm acrylic lacquer silicone compound tsim tau ib platinum-hardens nyob rau hauv lub xub ntiag ntawm leej faj thiab cov tshuaj tiv thaiv nrog tinny chaw. Qhov no ua rau lawv unsuitable rau ntau natural khoom. Cuaj kaum, tom qab hardening, lawv muaj lub siab tshaj plaws tshuaj, microbiological thiab tshav kub-resistant muaj peev xwm, thiab feem ntau nyob twj ywm saj zawg zog rau ntau xyoo. Rau hauv sib piv, lub tin-tshwmsim silicones yuav ua nkig tom qab ib tug ob peb xyoos ntawm kev siv thiab pib phua los yog kua muag. Vim li no, silicones tin pab pawg neeg yog feem ntau siv rau ua hauj lwm uas tsis muaj volume casting. Thiab platinum yog siv rau ib qho tseem ceeb ua hauj lwm, tshwj xeeb tshaj yog nyob rau hauv loj qhov ntau.

cia lub sij hawm

Muaj ntau silicones yuav siv tau ntse rau 5 xyoo los ntawm lub purchase hnub yog cia kom zoo nyob rau hauv kaw ntim rau hauv ib lub txias, qhuav qhov chaw. Txawm li cas los catalysts poob lawv cov hauj lwm zoo sai sai, txawm tias thaum kom muab, lawv zoo tshaj plaws siv nyob rau hauv ib xyoo.

qhov twg thov

Silicone RTV-2 compound siv rau zus tau tej cov ntau cov ntawv luam ntawm cov figurines. Tsis tas li ntawd yog cov khoom ntawm polyester, epoxy resins, ciab, plaster, taws tswm ciab, cov khoom ua si, soaps, etc.

Silicone compound "Pentelast" yog cov zaub mov zoo thiab nyab xeeb. Qhov kom zoo dua ntawm no cov ntaub ntawv uas yog hais tias nws yog ib co saj zawg zog thiab yuav tsis ua rau cov khoom thaum lub sij hawm tshem tawm, xws roj hmab tuaj pwm yuav siv tau dua. Muab hais tias qhov no zaub mov-qib silicone nrog ib tug platinum catalyst, nrog nws koj yuav ua tau silicone pwm rau plaster pwm rau ncuav thiab ncuav muffins, ncuav thiab lwm yam confectionery khoom.

Kev Nyab Xeeb Ceeb toom

Lub silicone compound yog tus muaj kev nyab xeeb khoom ntxhiab thaum siv kom yog yog, tab sis cov catalysts thiab thickeners tej zaum yuav lom rau lub ob lub qhov muag thiab tawv nqaij, tab sis, cov qhov chaw hauv lub cev yuav tsum tau muaj kev tiv thaiv.

Tus txheej txheem nyob rau hauv tsim pwm

• Deg theej qauv yog ntxuav thiab degreased. Yog hais tias tsim nyog, cov roj nplua nyeem siv ciab, ib tug xab npum tshuaj los yog petrolatum.

• Cov khoom yog meej tov, txij li thaum ib tug precipitate tej zaum yuav tsim nyob rau lub sij hawm cia.

• Pre-npaj ntim rau hauv uas lub hauv paus rau lub tswv yim. Yog li lub thawv yuav tsum tau ib lub hnab yas khob, ib lub raj mis los yog lub thawv. Nws yuav tsum tau kuj ncaj hauv qab thiab sab tsis muaj tej kab nrib pleb thiab qhov.

• Nyob rau hauv ib tug huv thawv diluted hauv paus thiab hardener kom txog thaum ib tug homogeneous loj.

• Nyob rau hauv thiaj li yuav kwv yees tus nqi ntawm cov silicone yuav tsum tau, koj yuav tsum xam qhov ntim nchuav, yog li ntawd txog cov khoom tau tau kiag li them. Lwm cov kev xaiv - koj yuav cia li npog qhov chaw ntawm cov khoom, nrog rau qhov thiab kab noj hniav, tom qab lub hardening ntawm lub silicone sau nyob rau hauv lwm feem, nyob rau hauv cov ntaub ntawv no silicone thiab rua cov nyiaj. Nyob rau hauv thiaj li yuav uniformly them rau cov tshem me me, nws yog ntshaw kom ncuav silicone los yog ua ntawv thov nyob rau hauv ob los yog ntau tshaj ob tog. Qhov thib ob tog yog muab tso rau sab saum toj ntawm lub solidified ua ntej, tab sis tseem nplaum. Koj kuj siv tau gauze los yog lwm yam reinforcing ntaub ntawv yuav tsum tau kos ntawm lub khaubncaws sab nraud povtseg, uas enables rau tsim ib tug khoom daim ntawv.

• Lub catalysts tau tov nyob rau hauv proportions nyob ntawm seb hom ntawm silicone. Ib txhia ntawm lawv siv ib lub hauv paus rau lub hauv paus piv ntawm 50:50. Do yuav ua tau mechanically los yog manually nrog ib tug diav los yog stick. Ib tug yuav tsis tau muab kev koom tes nyob rau hauv ntev no tus txheej txheem yog tsis ntau tshaj li 2 feeb, yog li ntev raws li tus txheej txheem ua ib tug ntau ntawm huab cua bubbles nyob rau hauv lub ntoos sib xyaw. Nyob rau hauv thiaj li yuav paub hais tias ib yam taub hau ua, zoo dua yuav coj ib tug xim hardener.

• Tom qab stirring lub sib tov yog poured sai li sai tau. Cov khoom kho mus rau ib tug rubbery lub xeev tsis pub dhau 24 teev. Thaum kub nram qab no +23 ° C chaw lub sij hawm yuav ntev.

Yuav ua li cas koj yuav tsum xav txog

Cua npuas yuav txo tau kom tsis muaj dab tsi, yog hais tias rau pib mix feem me me mixtures thiab siv ib tug txhuam hniav, tus qauv mus npog nws. Yog li, tshem tawm yog tau tsis tsuas npuas tab sis kuj cov clarity ntawm tus qauv npaj zoo. Tom qab depositing ib tug nyias txheej ntawm cov khoom mus rau tawm ntawm so hauv ib chav tsev kub kom txog thaum, kom txog thaum lub sib tov yog pub dawb los ntawm huab cua thiab yuav tsis tawv. Ces sib tov lub seem ntawm lub hardener nrog lub hauv paus thiab tso nyob rau hauv khaubncaws sab nraud povtseg ntawm cov khoom rau hauv lub tiav lawm zoo lawm. Nyob rau hauv laboratory tej yam kev mob, txoj kev no yooj yim dua, raws li nws yog ua li cas nrog rau cov kev pab los ntawm cov cav tov uas co pwm nchuav thiab tso cov cua. Nyob rau hauv underground tej yam kev mob yuav muaj peev xwm ntxias, nws tus kheej tapping qhov chaw.

Yog hais tias tus qauv muaj tsis muaj tej yam ntuj tso ib thaj tsam kom tsis txhob kis tus kab mob ntawm cov silicone thaum lub sij hawm pouring, nws yuav tsim nyog los tsim ib tug ceev phab ntsa ib ncig ntawm lub qauv. Qhov no yuav ua tau siv tej inert khoom xws li ntoo planks, boards, cov duab los qhia, thiab lwm yam Ntsaub thiab muab lub can phab ntsa los ntawm txoj kev nplaum kab xev rau lub silicone tsis paim quav los ntawm cov txoj kab txiav.

Ceeb toom! Tej yam hom silicone tej zaum yuav ib nyuag sis tsuas kob, tej yam uas pob zeb ntawm uas ib tug pwm ua. Ua ntej lub chaw ua hauj lwm yog npaj siab mus kuaj thiab mus xyaum ua tej yam nrog negligible qauv ua ntej yuav siv lawv rau nqi khoom.