Polyurethane Rau Pwm: Hom Polyurethane Rau Ua Pwm. Qhov Twg Los Xaiv Rau Pob Zeb Dag Thiab Zoo Nkauj, Rau Plaster Thiab Rau Pob Zeb?

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-15 04:12

Rau kev tsim khoom ntawm ntau yam khoom, piv txwv li, pob zeb tsis zoo, xav tau cov txheej txheem, uas yog, pwm rau nchuav cov sib xyaw ua kom tawv. Lawv feem ntau yog ua los ntawm polyurethane lossis silicone. Koj tuaj yeem tsim cov duab zoo li no nrog koj txhais tes.

Peculiarities

Ntau thiab ntau zaus ntau pob zeb tau siv hauv kev tsim chaw ua haujlwm thiab chaw nyob. Tus nqi siab ntawm cov khoom lag luam ntuj tsim thiab nws lub koob npe nrov tau muab kev txhawb nqa rau kev tsim cov khoom. Pob zeb dag ntawm qhov ua tau zoo tsis qis dua lub ntuj pob zeb zoo nkauj lossis muaj zog.

• Kev siv polyurethane rau kev tsim cov pwm yog qhov ua tau zoo tshaj plaws thiab tib lub sijhawm kev daws teeb meem nyiaj txiag.
• Cov pwm polyurethane tso cai rau tshem tawm yooj yim ntawm cov nplais tawv tsis tawg thiab khaws nws cov kev ntxhib los mos. Vim yog cov yas ntawm cov khoom siv no, lub sijhawm thiab tus nqi tau txuag rau kev tsim cov pob zeb zoo nkauj.
• Polyurethane tso cai rau koj xa nrog qhov tseeb tshaj plaws txhua qhov tshwj xeeb ntawm kev pab ntawm pob zeb, qhov tawg me tshaj thiab cov duab nraaj. Qhov zoo sib xws no ua rau nws nyuaj li ua tau kom pom qhov txawv ntawm pob zeb dag los ntawm ib qho ntuj.
• Matrices ntawm qhov ua tau zoo no ua rau nws tuaj yeem siv cov khoom sib xyaw ua ke los tsim cov vuas zoo nkauj - gypsum, xis mas lossis pob zeb ua vaj.
• Daim ntawv ntawm polyurethane yog tus yam ntxwv los ntawm kev ntxiv dag zog, elasticity thiab durability, ua tiav resists cov teebmeem ntawm ib puag ncig sab nraud. Cov pwm ua tau zoo tiv taus kev sib cuag nrog cov nplaim txhuam.
• Cov ntaub ntawv los ntawm cov khoom siv no tau ua hauv ntau yam kev xaiv, uas tso cai rau koj los tsim ntau yam khoom siv ntawm cov pob zeb dag nrog cov lus tshaj tawm ntawm lub ntuj zoo nkauj, cov cib ua kom zoo nkauj nrog qhov rov ua tiav ntawm qhov pom ntawm cov khoom qub
• Polyurethane muaj peev xwm hloov pauv nws qhov tsis nyob ntawm tus muab tub lim, xim thiab lwm yam ntxiv. Koj tuaj yeem tsim cov khoom uas muaj peev xwm hloov cov roj hmab hauv nws qhov ntsuas - nws yuav muaj cov yas zoo ib yam thiab yooj. Muaj hom tsiaj uas tuaj yeem rov qab mus rau lawv lub cev qub tom qab cov khoom siv tsis zoo.

Polyurethane compound muaj ob hom tshuaj khib. Txhua qhov tivthaiv muaj ntau hom sib txawv ntawm polyurethane puag.

Sib tov ob qhov sib xyaw ua rau nws muaj peev xwm kom tau txais cov homogeneous flowable loj uas ua kom sov ntawm chav sov. Nws yog cov khoom no uas ua rau nws muaj peev xwm siv polyurethane rau kev tsim khoom ntawm matrices.

Saib

Moulding polyurethane yog ob yam khoom siv raw ntawm ob hom:

• kub casting;
• txias txias.

Ntawm ob hom khoom lag luam hauv khw, cov hauv qab no yog qhov tshwj xeeb tshwj xeeb:

• porramolds thiab vulkolands;
• adiprene thiab vulcoprene.

Cov tuam txhab tsim khoom hauv tsev muab qib SKU-PFL-100, NITs-PU 5, thiab lwm yam. Hauv lawv cov thev naus laus zis lawv siv Lavxias ua polyesters uas tsis zoo dua rau qhov zoo rau txawv teb chaws analogues, tab sis hla lawv hauv qee qhov kev hwm. Ob-tivthaiv polyurethane xav tau qee yam ntxiv los hloov qhov zoo ntawm cov khoom siv raw. Piv txwv li, tus neeg hloov kho kom nrawm dua cov tshuaj tiv thaiv, cov xim hloov xim xim, muab cov tshuaj pab txo qis feem pua ntawm cov yas, uas txo tus nqi kom tau txais cov khoom tiav.

Siv los ua tus muab tub lim:

• talc los yog chalk;
• carbon dub lossis fibers ntawm ntau yam zoo.

Txoj kev nrov tshaj plaws yog siv cov txheej txheem txias txias. Qhov no tsis xav tau kev tshaj lij tshwj xeeb thiab khoom siv kim. Tag nrho cov txheej txheem thev naus laus zis tuaj yeem thov hauv tsev lossis hauv kev lag luam me . Chilled casting yog siv hauv kev tsim cov khoom siv tau ua tiav thiab rau kev kho kom zoo nkauj pob qij txha thiab cov chaw.

Rau qhov txias txias, txhaj tshuaj molding polyurethane tau siv, uas yog cov kua ua kom txias txias ua cov yas .… Txoj kev qhib casting yog siv rau kev tsim khoom ntawm cov khoom siv thiab cov khoom zoo nkauj.

Formoplast thiab silicone tuaj yeem txiav txim siab sib piv ntawm kev txhaj tshuaj molded polyurethane.

Nyiaj muas

Cov kua polyurethane tau siv hauv kev tsim cov ntawv matrices rau ntau lub hom phiaj, kev xaiv cov khoom sib xyaw yog nyob ntawm nws

Kom tau txais cov ntawv me me -matrix - xab npum, kho kom zoo nkauj pwm, cov duab me me - Sib xyaw "Advaform" 10, "Advaform" 20 tau tsim.

Nyob rau hauv rooj plaub ntawm kev ua pwm rau nchuav cov tshuaj sib xyaw polymer, lwm hom siv, piv txwv li, ADV KhP 40 . Cov polymer tau tsim los rau lub hom phiaj no - nws tuaj yeem dhau los ua lub hauv paus rau lwm hom kev sib xyaw polymer. Nws yog siv rau hauv casting ntawm silicone thiab cov khoom yas. Cov khoom siv no muaj lub peev xwm tshwj xeeb los tawm tsam kev cuam tshuam loj heev.

Yog tias nws yog qhov tsim nyog los ua cov ntawv loj rau cov khoom lag luam loj xws li cov duab puab, cov khoom siv hauv tsev, cov khoom tsim vaj tsev loj , siv cov txheej txheem txias txias "Advaform" 70 thiab "Advaform" 80 … Cov qhab nia no tsim cov khoom muaj zog thiab tawv.

Cheebtsam rau kev tsim khoom

Txhawm rau kom tau txais daim ntawv polyurethane, koj yuav tsum muaj tag nrho cov khoom siv ntawm cov txheej txheem thev naus laus zis ntawm tes:

• ob-tivthaiv txhaj tshuaj molding compound;
• pob zeb ntuj los yog nws qhov ua tau zoo;
• cov khoom siv rau lub thawv ntawv - chipboard, MDF, plywood;
• ntsia hlau, ntsia hlau, spatula, muaj peev xwm ntim tau;
• tov khoom thiab chav ua noj teev;
• divider thiab huv huv silicone.

Txoj kev npaj

• Cov pob zeb ntawm cov pob zeb tau muab tso rau ntawm ib daim ntawv ntawm MDF lossis plywood, teeb tsa nruj me ntsis. Qhov sib nrug ntawm 1-1.5 cm yog nyob nruab nrab ntawm txhua lub pobzeb, cov npoo ntawm cov pwm thiab cov hauv paus faib ua feem yuav tsum tuab dua, yam tsawg 3 cm. siv silicone.
• Tom qab ntawd, nws yog qhov tsim nyog los ua daim ntawv. Nws qhov siab yuav tsum yog ob peb centimeters siab dua pob zeb pob zeb. Cov ntawv ua haujlwm tau txuas nrog lub hauv paus siv tus kheej tapping screws thiab cov pob qij txha raug kaw nrog silicone txhawm rau tiv thaiv cov kua polyurethane los ntawm kev xau. Qhov saum npoo raug nthuav tawm thiab txheeb xyuas nrog qib. Tom qab cov silicone tawv tawv, yuav tsum tau lubrication - txhua qhov chaw tau npog los ntawm sab hauv nrog tus cais, tom qab crystallization nws tsim cov zaj duab xis uas nyias nyias.
• Qhov ob-tivthaiv txhaj tshuaj molding polyurethane yog sib xyaw ua ke sib npaug, hnyav txhua qhov kev tivthaiv. Qhov sib xyaw ua ke tau ua tib zoo nqa mus rau homogeneous pawg nrog lub tov khoom hauv lub thawv npaj ua ntej thiab nchuav rau hauv daim ntawv. Cov thev naus laus zis xav tau kev ua lub tshuab nqus tsev, tab sis nyob hauv tsev, tsawg tus neeg tuaj yeem them taus, yog li cov kws tshaj lij tau yoog kom ua yam tsis muaj nws. Ntxiv mus, cov nplais ntawm cov pob zeb muaj qhov yooj yim nyem, thiab kev nthuav tawm me me ntawm cov npuas yuav tsis pom.
• Nws yog qhov raug tshaj plaws los nchuav cov txiaj ntsig tau los rau hauv lub ces kaum ntawm daim ntawv ua haujlwm - thaum kis mus, nws yuav ua kom tuab tag nrho cov voids, ib txhij nyem tawm huab cua. Tom qab ntawd, cov polyurethane tau tso tseg rau ib hnub, thaum lub sij hawm uas huab cua hnyav thiab hloov mus ua daim ntawv tiav. Tom qab ntawv cov txheej txheem raug muab tshem tawm, yog tias xav tau, txiav nrog rab riam polyurethane lossis silicone thiab cais daim ntawv los ntawm tsab ntawv. Cov vuas nplaum zoo yuav tsum nyob twj ywm ntawm qhov chaw ntawm lub substrate. Yog tias qhov no tsis tshwm sim, thiab cov nplais tseem nyob zoo, nws yog qhov yuav tsum tau nyem nws tawm, tej zaum ua tib zoo txiav nws.

Daim ntawv ua tiav tau muab sijhawm kom qhuav, vim nws yuav ntub me ntsis sab hauv - nws yuav tsum tau so thiab tawm mus li ob peb teev. Cov pwm tuaj yeem npaj tau siv.

Cov kev xaiv

Thaum xaiv molding polyurethane, nws yog qhov tsim nyog yuav tsum nco ntsoov: qhov kub siab tshaj plaws uas nws tuaj yeem tiv taus yog 110 C. Tab sis nws lub zog thiab tsis kam ua kom puas ua rau nws tsis tseem ceeb thaum ua haujlwm nrog gypsum, xis mas, qhob, alabaster. Txhua yam ntaub ntawv no tsis muab qhov kub siab tshaj 80 C thaum txheej txheem tawv:

• rau plaster casting txhawm rau kom tau txais cov pob zeb dag, puv polyurethane ntawm Advaform 300 hom siv;
• thaum ua haujlwm nrog ua vaj tse rau paving slabs, cib, cov khoom tsim nyog tshaj plaws yog "Advaform" 40;
• kom tau txais cov khoom ua kom zoo nkauj, sib xyaw ntawm Advaform hom 50 tau tsim rau 3D panels;
• "Advaform" 70 thiab "Advaform" 80 tau siv rau casting cov khoom loj.

Yog tias koj ua tib zoo xav txog lub hom phiaj ntawm txhua lub npe, nws yuav tsis nyuaj rau xaiv hom kev txhaj tshuaj moulded polyurethane, ntxiv rau kom tau txais cov khoom lag luam tiav tom qab.