Niaj hnub nimno lub tsev thiab cov khoom tiav muaj cov yam ntxwv zoo txaus uas tso cai rau kev tsim ntau yam khoom siv. Qhov no kuj yog polypropylene ntawv. Nws yog siv nyob rau hauv ntau qhov chaw ntawm tib neeg lub neej. Txawm li cas los xij, nws tuaj yeem siv tau hauv lub neej niaj hnub lossis kev lag luam.
Cov khoom siv yog dab tsi?
Polypropylene daim ntawv yog cov khoom siv hauv tsev uas muaj lub cev zoo heev nrog rau ntau yam zoo. Yog li, cov khoom lag luam nthuav tawm yog qhov xav tau ob qho tib si hauv lub neej txhua hnub thiab kev tsim kho loj.
Muaj cais cov khoom siv no uas muaj cov khoom sib txawv. Cov hom no yuav tham tom qab. Thaum lub sij hawm tsim cov nplooj ntawv, ntau yam tshuaj lom neeg ntxiv rau cov khoom siv raw, uas txhim kho lub cev ntawm cov khoom.
Khoom specifications
Daim ntawv polypropylene muaj cov khoom zoo uas ua rau nws xav tau:
1. Melting point - +165 degrees.
2. Kev tiv thaiv rauFrost - mus txog 10 cycles.
3. Ceev - 0.92 g / cm3
4. Elasticity - 1.15 N / hli sq.
5. Thermal conductivity yog 0.22W / mK.
Tom ntej, cia peb mus rau lo lus nug ntawm qhov txiaj ntsig ntawm cov khoom nthuav tawm muaj dab tsi.
Khoom muaj nqis
Daim ntawv polypropylene muaj qhov zoo hauv qab no:
- Ntau yam xim thiab ntxoov ntxoo. Tsis tas li ntawd, daim ntawv tuaj yeem yog matte lossis pob tshab. Ntawd yog, koj muaj sijhawm los ua ntau yam khoom dai.
- Resistant mus rau qhov kub thiab txias heev, aggressive tshuaj, hnav, te.
- Muaj peev xwm ua kom haum.
- Lub zog siab, thaum daim ntawv hloov pauv tau yooj yim thaum txias. Lawm, txhawm rau kom nws coj qhov tsim nyog zoo dua, nws tuaj yeem ua kom sov me ntsis.
- Yooj yim los ntxuav thiab kov. Xws li cov khoom yog heev yooj yim mus txiav, npaj. Hauv qhov no, koj yuav tsis muaj cov khib nyiab ntau lossis plua plav. Koj tuaj yeem txiav cov khoom nrog ob lub grinder thiab jigsaw.
- Siab thermal conductivity.
- Tsawg dej permeability.
- Ecological huv huv. Txawm tias thaum lub sijhawm rov ua dua tshiab, cov khoom siv uas nthuav tawm tsis ua rau ib puag ncig.
- Lub teeb yuag.
- Cov khoom siv yog qhov ua tsis tau zoo.
Daim ntawv polypropylene (koj twb paub nws cov yam ntxwv) yog cov khoom nrov heev uas tso cai rau koj kom paub txog cov tswv yim tsim vaj tsev uas txaus ntshai tshaj plaws.
thaj chaw thov
Tam sim no peb yuav tsum xav txog seb cov khoom no siv dav npaum li cas.
1. Hauv kev lag luam khoom noj khoom haus: rau kev tsim cov thawv uas cov kua (mis nyuj, dej) lossis cov khoom yuav tom qab ntim.
2. Hauv kev lag luam tshuaj lom neeg: rau kev tsim cov thawv uas muaj cov tshuaj phem (alkali, acid) tuaj yeem khaws cia zoo kawg nkaus.
3. Hauv chaw ua haujlwm: npog rau cov phau ntawv, phau ntawv sau, folders, hnab ntawv yog tsim los ntawm nws.
4. Nyob rau hauv kev tsim kho: rau hauv ob sab phlu pas dej ua ke, tsim foundation formwork. Tsis tas li ntawd, cov khoom siv no tsim nyog rau kev tsim cov dej thiab cov khoom siv cua sov.
5. Nyob rau hauv horticulture, zoo heev pots thiab seedling thawv yog tsim los ntawm polypropylene.
6. Tsis tas li ntawd, cov mats zoo rau da dej thiab saunas tau txais los ntawm cov khoom siv no.
Feem ntau, daim ntawv polypropylene, cov yam ntxwv ntawm cov uas tau piav qhia hauv tsab xov xwm, yog siv yuav luag txhua qhov chaw.
khoom ntau yam
Nws yuav tsum tau muab sau tseg tias tsis muaj ntau yam ntawm cov khoom no. Muaj ntau hom polypropylene:
- Tight. Cov thawv ntim khoom lossis lwm yam khoom uas yog qhov tseem ceeb tshaj plaws yog tsim los ntawm nws. Feem ntau siv cov ntawv polypropylene rau cov pas dej da dej.
- Cellular. Nws yog siv los ua cov khoom ntim thiab tseem siv hauv kev tsim kho.
- Ua npuas ncauj. Nws feem ntau yog siv los ua cov khoom siv insulating.
Cia peb xav txog hom kawg hauv kev nthuav dav ntxiv.
Ua npuas ncauj
Hnub no nws yog ib qho nyuaj heev. Qhov tseeb yog tias cov khoom muaj cov khoom zoo heev: nws absorbs suab thiab vibrations zoo, khaws cov cua sov. Tsis tas li ntawd, cov khoom siv xyaum tsis nqus dej noo, txawm tias nws cov qauv ntxeem tau. Nws yog lub teeb heev, yog li nws tuaj yeem siv los thaiv cov tsev tsis yog ib-zaj dab neeg xwb, tab sis kuj yog cov tsev siab siab.
Txawm tias cov ntawv foamed polypropylene kub hnyiab heev. Nyob rau tib lub sijhawm, tsis muaj cov tshuaj lom raug tso tawm rau saum huab cua. Nws yooj yim heev los ua haujlwm nrog nws. Nws tuaj yeem pab tau li ntawm 20 xyoo.
Cov khoom lag luam nthuav tawm yog siv txhua qhov chaw: rau kev rwb thaiv tsev ntawm phab ntsa ntawm lub tsev los ntawm sab nraud, sandwich panels. Nws yog hammered rau hauv cov phab ntsa kom zoo dua suab nrov. Txij li cov khoom tsis nqus dej, nws tuaj yeem ntsia tau rau hauv qhov chaw uas muaj cov av noo siab. Nws kuj yog siv los ntim ntau yam khoom tawg yooj yim.
Txoj kev ntawm cov khoom siv machining
Soldering polypropylene ntawv tsis yog ib txoj haujlwm nyuaj heev. Nyob rau tib lub sijhawm, txhua qhov kev ua tau ua sai txaus. Nws yog ib qho tseem ceeb heev los xav txog qhov tseeb machining ntawm cov khoom. So:
1. Cov cuab yeej uas yuav siv rau kev ua haujlwm yuav tsum tau ua kom zoo.
2. Tsuas yog lub ntug ntawm cov hniav yuav tsum kov lub npoo ntawm daim ntawv. Hauv qhov no, kev txiav yuav raug ntau dua.
3. Thaum lub sijhawm ua haujlwm, xyuas kom huv ntawm cov khoom. Ntawd yog, cov hniav ntawm lub tshuab yuav tsum tau muab tshem tawm ntawm cov chips ib ntus.
4. Tsis tas li ntawd, yuav tsum tau saib xyuaslub ntsuas cua txias. Qhov no yog qhov tsim nyog kom tsis txhob yaj cov npoo ntawm qhov txiav.
Ntau yam khoom siv vuam
Yog li, muaj peb txoj hauv kev los txuas cov ntsiab lus ua ke:
- Polyfusion vuam ntawm daim ntawv polypropylene. Nws suav hais tias yog qhov zoo tshaj plaws thiab zoo tshaj plaws. Txhawm rau ua haujlwm, koj xav tau ib lub cuab yeej tshwj xeeb uas tuaj yeem ua kom sov cov npoo ntawm cov nplooj ntawv mus rau qhov kub thiab txias. Tom qab ntawd lawv sib zog sib zog. Tom qab txias, lub seam tseem muaj zog heev. Tib lub sijhawm, txoj kev sib txuas zoo sib xws tuaj yeem siv rau txhua yam khoom siv, tsis hais nws qhov tuab.
- Vuam nrog extruder. Txhawm rau ua haujlwm, koj yuav xav tau cov khoom siv hlau ntxiv. Nws yuav tsum raug sau tseg tias kev sib txuas nrog cov cuab yeej zoo li no yog ua tiav manually. Lawm, nyob rau hauv cov ntaub ntawv no, ib tug yuav tsis cia siab rau ib tug heev degree ntawm lub zog. Feem ntau, lub extruder yog siv thaum nws yog tsim nyog los txuas cov nplooj ntawv ntawm loj thickness.
- Vuam nrog rab phom cua kub tshwj xeeb. Ntawm no, ib yam nkaus, koj xav tau ib qho tshwj xeeb vuam pas nrig. Txawm li cas los xij, cov cuab yeej tsis muaj peev xwm tswj tau huab cua kub tsis tu ncua. Qhov no qhia tau tias cov seam yuav tig tawm mus deb ntawm qhov zoo heev. Lawm, soldering tuab daim ntawm polypropylene nyob rau hauv cov ntaub ntawv no yog tawm ntawm lo lus nug. rab phom tsuas yog ua kom sov lub seam zoo txaus.
Cov txheej txheem vuam nws tus kheej yuav tsum ua tib zoo ua kom txaus. Xav txog qhov zoo ntawm tus pas nrig. Piv txwv li, yog tias nws yog refractory, ces lub zog ntawm nias lub phom rauseam nce. Yuav kom gluing tshwm sim qualitatively, nws yog ib qhov tsim nyog los ua kom sov cov cuab yeej thiab cov khoom pab kom zoo. Lawm, qhov kub thiab txias yuav tsum sib xws.
Yuav kom ua tiav cov hlau, cov hlau yuav tsum tau txuas rau ib leeg. Clamps tuaj yeem siv rau qhov no. Yog tias nws nyuaj rau ua li no, ces muaj lwm txoj hauv kev: cheb nrog cov tuag tshwj xeeb tsim los rau cov txheej txheem no.
Tom qab ua tiav txoj haujlwm, koj yuav tsum tau ua tib zoo saib xyuas kev huv ntawm cov seam. Lawm, thaum lub sij hawm vuam, ua npuas ncauj tshwm rau nws, uas hardens. Nyob rau hauv txoj cai, yog tias nws tsis pom, ces lub seam yuav tsis tau ua tiav. Txawm li cas los xij, koj tuaj yeem ntxuav nws. Ua li no, siv rab riam ntse, uas txiav tawm qhov dhau. Thov nco ntsoov tias qhov no yuav tsum ua tib zoo ua kom tsis txhob ua txhaum kev ncaj ncees ntawm lub phaj.
Qhov ntawd yog tag nrho cov yam ntxwv ntawm daim ntawv polypropylene. Tam sim no koj paub yuav ua li cas tuav nws thiab dab tsi nws muaj.
