Polypropylene kav dej thiab lawv thaj chaw thov. Pros thiab cons ntawm cov kav dej los ntawm cov khoom siv no. Ntau yam khoom thiab lawv cov khoom. Cov cim rau ntawm cov kav dej.
Polypropylene kav dej rau dej yog cov khoom los ntawm kev hloov pauv polymer, cov khoom uas tso cai rau lawv siv hauv tsev neeg. Ntau yam uas twb muaj lawm haum rau siv sab hauv tsev thiab sab nraum zoov. Cov yam ntxwv ntawm ntau hom npe ntawm cov kav dej polypropylene rau cov tshuab siv dej yuav tham hauv peb kab lus.
Nta ntawm polypropylene kav dej rau dej
Hauv daim duab muaj cov kav dej polypropylene rau dej
Polypropylene yog ib yam ntawm cov yas uas tau txais thaum lub sijhawm ua cov khoom siv roj av thiab lawv cov pa roj carbon feem. Cov kav dej los ntawm cov khoom siv no tau tsim nyob rau hauv siab nrog lub xub ntiag ntawm cov catalyst. Lawv tau tsim los ntawm isotactic polypropylene thiab nws cov copolymers, uas muaj cov khoom tsim nyog los tsim cov tshuab dej rau ntau lub hom phiaj. Muaj ntau ntau yam yas uas muaj qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntຣ several several several Txhawm rau hais txog lawv, cov tuam ntxhab tau tshaj tawm cov npe PP-H, PP-B, PP-R.
Hom yas yas rau kev tsim cov kav dej polypropylene rau dej:
- RR-N os … Polypropylene hauv nws daim ntawv dawb huv (homopilimer), uas tseem hu ua hom 1 polypropylene. Cov lwg me me ntawm cov khoom muaj xws li chav nyob ntawm tib hom thiab tsim cov sib xyaw ua ke siab. Cov khoom siv muaj lub zog ncaj ncees, tab sis muaj qhov kub tsis kam tiv taus. Hauv qhov hnyav heev, nws tuaj yeem tawg, yog li nws tsis siv sab nraum. Nws muaj peev xwm tiv taus qhov khoov loj loj haum.
- PP-IB … Nws yog copolymer ntawm polypropylene, nyob rau hauv uas cov txheej txheem tseem ceeb tsis yog cov molecules, tab sis thaiv ntawm propylene thiab polyethylene molecules nyob rau hauv ib theem zuj zus. Cov khoom siv no hu ua hom 2 polypropylene. Hais txog lub zog, nws tsis txawv ntawm PP-N, tab sis nws cov thermal stability thiab thermal conductivity yog siab dua, uas tso cai siv cov khoom lag luam ntawm qhov kub tsawg. Yas muaj qee qhov kev ywj pheej. Nws tau txais cov khoom zoo li no tom qab qhia txog polyethylene ntxiv rau hauv nws cov muaj pes tsawg leeg. Txawm hais tias nws cov khoom ua tau zoo, nws tsis tshua siv hauv cov kav dej thiab feem ntau hauv cov tshuab ua pa. Yog vim li cas nyob hauv qhov kub nthuav dav ntawm cov kav dej vim muaj polyethylene nyob hauv nws cov muaj pes tsawg leeg.
- PP -R … Lub tshuab hluav taws xob zoo li qub ntawm polypropylene (random copolymer) nrog cov qauv tshwj xeeb. Cov txheej txheem ntawm propylene thiab polyethylene hloov pauv hauv ib txoj hauv kev thiab tsim cov qauv crystalline uas ua kom muaj kev faib khoom txawm tias ntawm cov phab ntsa ntawm cov yeeb nkab. Lub tshuab luam ntawv tsis raug xa mus rau hom 3 polypropylene. Nws lub zog thiab cov cua sov ruaj khov ntau dua li ntawm PP-N thiab PP-V. Kuj tseem muaj kev hloov kho ntawm cov khoom siv no - PP -RC, tus yam ntxwv los ntawm 5 lub sij hawm txo coefficient ntawm thermal nthuav.
Qhov ntev ntawm cov kav dej polypropylene rau dej
Qhov ntau thiab tsawg ntawm cov kav dej polypropylene rau cov khoom siv dej yog tus qauv thiab thaj tsam li ntawm 16 txog 500 hli. Lawv qhov kev xaiv yog cuam tshuam los ntawm qhov ntev ntawm tus qauv (saib cov lus).
| Yeeb Nkab | Qhov ntev, m | Txoj kab uas hla, hli |
| Cov kav dej | rau 10 | 20 |
| 10-30 | 25 | |
| ntau tshaj 30 | 32 thiab ntau dua | |
| Riser | rau txhua qhov ntau thiab tsawg | 32 |
Kev sib txuas ntawm kev txiav yog ua kom sov siv cov fittings, tseem ua los ntawm polypropylene. Tom qab vuam, cov pob qij txha tsis tuaj yeem sib cais.
Hauv kev tsim tsev, ob hom yas yas siv - los ntawm ib qho khoom siv thiab ntau txheej. Monolithic cov khoom muaj tsuas yog yas. Lawv tau siv hauv cov txheej txheem rau dej txias. Ntau txheej ntxiv nrog txheej ntawm lwm cov khoom. Lawv tau tsim rau kab dej kub.
Qhov zoo thiab qhov tsis zoo ntawm cov kav dej polypropylene
Polypropylene kav dej yog nrov ntawm cov neeg siv, yog li hauv Is Taws Nem koj tuaj yeem pom qhov zoo thiab qhov tsis zoo ntawm kev muab dej los ntawm kab yas. Lub koob npe nrov ntawm cov khoom lag luam tsis yog xwm txheej, vim hom yas no muaj ntau yam zoo.
Qhov zoo tseem ceeb ntawm cov kav dej polypropylene rau dej yog:
- Muaj peev xwm los tiv thaiv kev tawg ntawm kev nyuaj siab txog 20 Bar, txawm hais tias kev nyuaj siab hauv qab 10 Bar tsis tshua muaj nyob hauv cov txheej txheem hauv tsev.
- Kev tiv thaiv mus sij hawm ntev rau kev txhoj puab heev impurities thaum siv nyob rau sab nraum zoov.
- Lub kaw lus tsis ntshai xeb. Cov kab noj hniav tsis txhaws nrog cov ntsev tso thiab txhim kho.
- Cov kav dej tsis tawg thaum kua khov.
- Nrog kev pab ntawm cov fittings, lawv tau yooj yim txuas nrog cov khoom siv hlau.
- Cov txheej txheem ua los ntawm cov yas no tau ua haujlwm yam tsis tau kho tau ntau caum xyoo thiab yuav ua rau muaj kev cuam tshuam zoo ib yam los ntawm lwm cov khoom siv.
- Cov txheej txheem ntawm kev koom nrog kev txiav yog qhov ntseeg tau heev thiab muab qhov nruj ntawm txoj kev.
- Cov yas yog ib puag ncig zoo thiab tsis ua kom dej tsis huv.
- Tus nqi ntawm cov kav dej polypropylene rau kev xa dej tau qis, yog li nws muaj txiaj ntsig zoo los tsim cov raj xa dej los ntawm cov khoom siv ntawd. Koj tseem tuaj yeem txuag nyiaj tau los ntawm tus nqi tsim nyog rau kev thauj khoom ntawm cov khoom, kev siv zog tsawg, txuag nyiaj ntawm cov khoom thiab tsis muaj nqi kho ntxiv thaum lub sijhawm ua haujlwm.
- Kev tiv thaiv hydraulic hauv cov khoom muaj tsawg heev, yog li qhov poob siab yog qhov tsis tseem ceeb.
- Qhov hnyav ntawm cov khoom ua haujlwm me me, uas ua rau kev teeb tsa thiab kho haujlwm yooj yim dua.
- Kev sib dhos ua haujlwm yog yooj yim, vim workpieces yog qhov yooj yim los txiav thiab haum.
- Cov qauv tsim tiav muaj qhov pom zoo nkauj.
- Kab thiab ceg tuaj yeem muab zais rau hauv strobes.
Txawm li cas los xij, txawm tias cov khoom lag luam muaj qhov tsis zoo. Cov neeg siv yuav tsum paub tsis tsuas yog qhov zoo, tab sis kuj tseem muaj qhov tsis zoo ntawm cov kav dej yas:
- Cov khoom lag luam ib leeg hloov pauv lawv qhov ntev nrog kev hloov pauv kub, thiab muaj cua sov tsis kam. Nws tsis pom zoo kom siv cov khoom ua haujlwm uas tsis tau siv zog hauv cov txheej txheem dej kub.
- Ua ntej txuas cov kav dej ntau txheej, nws yog qhov yuav tsum tau rov ua haujlwm cov pob qij txha. Nws suav nrog kev txiav cov npoo nrog cov ntawv lossis tshwj xeeb reamers.
- Cov txheej txheem Polypropylene tau nruj heev, yog li cov khoom siv yuav tsum tau siv txawm tias qhov sib txawv me ntsis ntawm kab ncaj.
- Txhawm rau txuas cov kev txiav, koj yuav xav tau cov cuab yeej tshwj xeeb - cov hlau txuas, uas tseem yuav tsum tau siv.
- Feem ntau, cov khoom lag luam tam sim tom qab ua haujlwm pom qhov tsis zoo cuam tshuam nrog lawv cov khoom lag luam. Txhawm rau xaiv txoj cai polypropylene kav dej rau dej, nco ntsoov xyuas daim ntawv pov thawj khoom zoo thaum yuav khoom.
Yuav xaiv cov kav dej polypropylene rau cov kav dej li cas?
Cov kav dej Polypropylene tau siv hauv tsev neeg rau kev haus dej haus thiab dej hauv chaw ua haujlwm, rau kev npaj dej ntawm thaj chaw, dej ntws tawm, thiab lwm yam. Lawv tuaj yeem muab faus rau hauv av lossis cuam tshuam rau hauv qhov zawj, tso rau hauv qab plaster lossis tom qab phab ntsa ntub dej. Txhawm rau xaiv cov kav dej kom raug rau siv hauv ntau yam xwm txheej, nws yog qhov tsim nyog yuav tsum paub qhov zoo thiab qhov tsis zoo ntawm kev muab dej hauv txhua qhov xwm txheej tshwj xeeb, cov yam ntxwv ntawm cov khoom lag luam thiab cov paib qhia uas cov khoom ntawm cov khoom tau txiav txim siab yooj yim.
Kev tsim cov kav dej polypropylene
Cov khoom ua los ntawm polypropylene tau ua monolithic (los ntawm ib txheej ntawm cov khoom siv) lossis ntau txheej (txhawb ntxiv).
Hauv daim duab, ib txheej polypropylene kav dej rau dej
Ib txheej ib txheej suav nrog cov cim cim PP-H, PP-B, PP-R. Lawv tau tsim los siv rau ntau yam xwm txheej:
- PP-N homopolymer kav dej tau siv los muab dej txias hauv lub tsev.
- Cov khoom lag luam ua los ntawm PP-B copolymer tsis tshua muaj siv hauv cov tshuab dej, ntau zaus hauv cov tshuab ua pa.
- Cov kav dej ua los ntawm kev sib piv copolymer PP-R tau txiav txim siab ntau yam thiab khaws lawv cov khoom hauv cov kav dej txias thiab kub.
Cov cim nrog cov ntaub ntawv muaj txiaj ntsig hais txog lawv tau siv rau saum cov khoom ib txheej. Lawv nkag siab tau txawm tias rau cov neeg siv tsis muaj kev paub thiab tso cai rau koj kom txiav txim siab sai sai uas cov kav dej polypropylene rau cov dej haus yuav ua haujlwm zoo tshaj plaws hauv koj rooj plaub.
Piv txwv ntawm kev kos cov kav dej polypropylene rau dej
Nws tsis nyuaj to taub lawv. Cia peb kawm txog kev tsim cov yeeb nkab Contour PPR GF PN20 20x1.9 1.0 mPa TU 2248.002 14504968-2008:
- "Circuit" Cov - tuam txhab tsim khoom lossis cov cim lag luam.
- PPR - yam khoom Kev xaiv yuav tsum muaj cov tsiaj ntawv PP - kev lees txais cov cim ntawm polypropylene. Cov ntawv hauv qab no qhia tias muaj cov tshuaj ntxiv hauv cov yas uas hloov pauv nws lub zog. Kev siv tau ntawm cov khoom nyob ntawm lawv.
- Gf - Khoom Npe
- PN20 - nominal siab. PN tus nqi raug muab rau hauv kab. Nws qhia ntawm qhov siab npaum li cas cov yeeb nkab yuav ua haujlwm lub sijhawm lav ntawm qhov kub ntawm 20 degrees. Cov yam ntxwv no tau suav tias yog ib qho tseem ceeb tshaj plaws hauv cov khoom piav qhia.
- 20x1.9 ua - txheej sab nrauv ntawm cov yeeb nkab polypropylene rau dej thiab nws cov tuab.
- 1.0 MPa (yeem) - siab tshaj kua dej.
- TU 2248.002 14504968-2008 - cov qauv kev tsim khoom.
Lwm cov ntaub ntawv feem ntau siv rau saum npoo. Piv txwv li, ntawm qhov kev lees paub ntawm kev ua raws cov yam ntxwv nrog qhov xav tau ntawm cov txheej txheem tsim khoom thiab cov yam ntxwv tshwj xeeb; cov ntaub ntawv hais txog kev siv thev naus laus zis, hnub teeb meem, thiab lwm yam. Cov ntaub ntawv tau muab zais hauv ib thiab ib nrab kaum ob tus lej, ntawm ob qhov kawg yog xyoo ntawm cov khoom tso tawm.
Hauv daim duab, cov kav dej ntau txheej polypropylene
Hauv cov kav dej ntau txheej, ntxiv rau yas, muaj cov ntawv txhuas txog li 0.5 hli tuab lossis fiberglass, uas tau kaw ob sab nrog PP-R polypropylene. Cov txheej sab hauv tsim cov yeeb nkab, txheej txheej tiv thaiv txheej ntawm kev puas tsuaj
Aluminium ntawv ci tuaj yeem tso sab nraum lossis sab hauv. Nws pom meej meej ntawm qhov txiav. Daim kab xev txo cov pa nkag mus thiab txo qhov nthuav dav nthuav dav coefficient ntawm cov qauv. Nws ntxiv dag zog rau cov khoom yam tsis tau nce nws qhov hnyav. Cov interlayer txuas nrog cov yas nrog kua nplaum.
Hais txog cov khoom, cov kav dej zoo li cov yas-yas, tab sis lawv nruj heev. Lawv tuaj yeem tiv taus siab thiab kub. Txawm li cas los xij, cov ntawv ci ua rau cov txheej txheem sib txuas vim tias koj yuav tsum tau ntxuav qhov kawg ntawm qhov ua ntej vuam lawv.
Hauv daim duab, cov kav dej polypropylene txuas nrog fiberglass thiab txhuas (ntawm sab laug mus rau sab xis)
Fiberglass yog lwm txoj hauv kev rau txhuas ntawv ci. Nws yog tsim los ntawm kev sib xyaw yas thiab fiber. Cov txheej yog welded nrog yas thiab tsim ib qho tag nrho, yog li ntawd, lub zog ntawm cov qauv yog siab dua, thiab tus nqi yog xyaum zoo ib yam. Cov kav dej nrog cov cuab yeej txhawb ntxiv tsis tas yuav tsum tau ntxuav cov ntawv ci ua ntej txhuam, uas ua kom nrawm dua cov txheej txheem teeb tsa. Fiberglass nce qhov nruj ntawm cov khoom. Piv txwv ntawm polypropylene txhawb cov yeeb nkab npe: cov khoom lag luam nrog txhuas ntawv ci-PPR-AL-PPR, cov khoom siv nrog iav fiber-PPR-FB-PPR.
Ntau yam ntawm cov kav dej rau dej raws li qhov tsim qauv ntawm cov kua
Cov khoom tsim los rau cov dej tshwj xeeb. Hauv qab no peb tau sau dab tsi cov kav dej polypropylene yog thiab lawv lub hom phiaj:
- PN10 -ib txheej txheej uas muaj txheej sab nraud ntawm 20-110 hli rau dej txias nrog qhov kub tsis tshaj + 20 ° C. Tiv thaiv dej siab txog li 1 MPa.
- PN16 -ib txheej yeeb nkab nrog txheej sab nraud ntawm 16-100 mm rau siv hauv cov kab ke nrog qhov kub txog li + 60 ° C. Nws tsis tshua pom pom ntawm kev muag.
- - N20 -peb txheej txheej nrog txheej sab nraud ntawm 16-100 mm rau dej rhaub kom + 80 ° C. Tiv thaiv dej siab ntawm 2 MPa.
- NPE 25 -peb txheej txheej nrog txheej sab nraud ntawm 21, 2-77, 9 hli rau dej txog li + 90 ° C. Cov yeeb nkab feem ntau siv rau txoj kev loj uas muaj qhov siab txog 2.5 MPa.
Cov xim ntawm cov kav dej polypropylene txhais li cas?
Cov kav dej Polypropylene tau pleev xim rau hauv ntau xim uas nco txog cov chaw tsim khoom tau pom zoo ua daim ntawv thov.
- Dawb … Cov khoom ntawm cov xim no zam lub siab ntawm chaw ua haujlwm zoo, thiab tau sib sau sai sai los ntawm kev siv vuam. Tsis npaj rau kev siv sab nraum zoov vim muaj kev pheej hmoo ntawm crystallization ntawm cov qauv hauv te. Nws tseem tsis tau pom zoo kom thauj lawv tawm sab nraum lub caij ntuj no, vim tias lawv tuaj yeem raug puas tsuaj txawm tias muaj qhov cuam tshuam me ntsis.
- Ntsuab … Cov kav dej tuaj yeem faus rau hauv av los npaj dej ntawm qhov chaw. Kev siv nyob rau hauv cov xwm txheej zoo li no tuaj yeem ua rau tsis quav ntsej qhov tsis ruaj khov ntawm lub kaw lus rau sab hauv siab.
- Grey … Cov khoom siv sib txawv uas tuaj yeem siv rau hauv cov txheej txheem sab hauv tsev rau txhua lub hom phiaj.
- Dub … Cov kav dej no tsis ua rau lub hnub poob, yog li cov dej tuaj yeem sau ncaj qha rau ntawm lub ntiaj teb.
Muaj cov kab txaij xiav nyob saum cov kav dej txhais tau tias cov kav dej yog rau dej txias, liab rau kub.
Nqe ntawm cov kav dej polypropylene rau dej
Kev siv cov kav dej polypropylene hauv cov kav dej yog suav tias yog txoj hauv kev zoo tshaj plaws los cawm kev teeb tsa ua haujlwm. Tus nqi ntawm cov khoom hloov pauv nyob rau hauv qhov loj haum, nyob ntawm ntau yam. Cia peb xav txog lub hauv paus tseem ceeb uas cuam tshuam rau nws tus nqi.
Khoom muaj pes tsawg leeg
Cov kav dej uas pheej yig tshaj rau cov dej yog tsim los ntawm homopolymers (PP-H), uas tsis muaj cov yam ntxwv ua tau zoo. Hauv lwm qhov kev hloov kho (PP-B, PP-R), tus nqi nce vim yog qhia txog ntau yam tshuaj ntxiv rau hauv polypropylene thiab siv cov thev naus laus zis thev naus laus zis ntau dua. Qhov kim tshaj plaws yog cov kav dej ntau txheej txuas nrog txhuas thiab fiberglass.
Kev Ua Haujlwm
Cov kav dej Polypropylene txuas nrog ib leeg los ntawm kev vuam, uas yuav tsum muaj qhov tseeb ntau dua hauv kev tsim cov nplaim kom koom nrog. Lawv tus nqi raug txo los ntawm cov hauv qab no:
- Cov yeeb nkab tsis yog puag ncig.
- Cov phab ntsa ntawm cov khoom muaj cov tuab sib txawv.
- Muaj thickenings thiab roughness nyob rau saum npoo.
- Lub taub sab hauv tsis ua tau raws cov qauv rau cov kav dej polypropylene.
- Cov yam ntxwv ntawm cov khoom sib txawv los ntawm cov uas tau hais tseg.
- Cov kav dej tsis sib haum nrog cov fittings.
Polypropylene yeeb nkab manufacturers
Polypropylene yeeb nkab daim duab
Cov khoom lag luam no tau tsim los ntawm ntau lub tuam txhab, tab sis nws tsis yog ib txwm tuaj yeem nrhiav cov ntaub ntawv hais txog qhov zoo thiab qhov tsis zoo ntawm cov kav dej tshwj xeeb. Raws li cov neeg siv, cov kav dej zoo tau tsim los ntawm cov tuam txhab Italian thiab German, yog li lawv tus nqi yog siab tshaj plaws. Cov tuam txhab Turkish muag lawv cov khoom pheej yig dua, tab sis lawv cov khoom tsis zoo. Cov kav dej kim los ntawm cov tuam txhab HENCO, Rehau, Valtec, tab sis ntawm qhov tod tes, yuav tsis muaj teeb meem nrog lawv thaum teeb tsa. Cov neeg siv feem ntau nyiam tus nqi nruab nrab qib muab, piv txwv li, los ntawm Turkish tuam txhab Firat.
Tus nqi khoom muag nyob hauv Ukraine thiab Russia, koj tuaj yeem pom los ntawm cov lus hauv qab no. Cov txiaj ntsig tau muab rau ntau hom kav dej nrog txoj kab uas hla 20 hli.
Tus nqi nruab nrab ntawm cov kav dej polypropylene rau dej hauv Ukraine:
| Lub npe yeeb nkab | Tus nqi rau 1 m, UAH |
| Firat yeeb nkab PN 20 d20 | 50 |
| Firat Composite yeeb nkab 20 mm - 3.4 mm, fiberglass reinforced | 24 |
| Firat yeeb nkab ntxiv nrog txhuas Composite 20 mm - 3.4 mm | 29 |
Nqe ntawm cov kav dej polypropylene rau dej hauv Russia:
| Lub npe yeeb nkab | Nqi rau 1 m, rub. |
| Firat yeeb nkab PN 20 d20 | 51 |
| Firat Composite yeeb nkab 20 mm - 3.4 mm, fiberglass reinforced | 84 |
| Firat yeeb nkab ntxiv nrog txhuas Composite 20 mm - 3.4 mm | 104 |
Nco tseg! Nws yuav tsum nco ntsoov tias cov tuam txhab ib txwm qhia tus nqi ib 'meter'.
Polypropylene kav lossis hlau - qhov zoo thiab qhov tsis zoo
Tsis ntev los no, cov kav dej tau sib dhos tshwj xeeb los ntawm cov kav hlau, ua los ntawm cov hlau. Billets ua los ntawm tooj liab, stainless hlau, txhuas tsis nrov vim lawv cov nqi siab. Txhawm rau tshem tawm ntau qhov tsis txaus, cov kav hlau tau hloov kho tshiab. Piv txwv li, lawv tau galvanized los txo qhov xeb. Tab sis kev txhim kho nce tus nqi, thiab tsis yog txhua tus neeg siv tuaj yeem yuav lawv.
Cov kav dej polypropylene tsis muaj qhov tsis zoo ntawm cov khoom siv hlau, yog li lawv tau nrawm nrawm rau hauv cov tsev neeg xws li cov kav dej. Ib qho ntxiv, tus nqi ntawm cov kav dej polypropylene rau cov dej yog qis dua li cov hlau.
Qhov laj thawj tseem ceeb rau kev nyiam khoom yas yog nyob hauv cov khoom ntawm cov khoom uas lawv tau ua. Polypropylene tau txais los ntawm cov khoom siv roj av thiab lawv cov txiaj ntsig. Muaj ntau hom khoom siv rau hauv cov xwm txheej tshwj xeeb.
Cov neeg nyiam tshaj plaws yog cov kav dej ua los ntawm cov tshuaj propylene zoo li qub (PP-R). Lawv yog cov khoom lag luam ntawm cov nqi nruab nrab thiab feem ntau siv hauv cov kav dej. Cov no yog cov kav ib txheej uas siv hauv cov dej txias. Cov khoom monolithic tsis tuaj yeem siv los muab cov dej kub, tsuas yog cov khoom sib xyaw, uas lwm cov ntaub ntawv muaj nyob. Tab sis lawv raug nqi ntau dua.
Vim li cas cov neeg siv nyiam cov kav dej polypropylene rau cov kav hlau tuaj yeem nrhiav pom los ntawm kev sib piv cov yam ntxwv ntawm polypropylene (PP-R) thiab cov hlau (hlau) kav
| Cov khoom siv yeeb nkab | Kev muaj meej mom | tsis zoo |
| Polypropylene | Yooj yim txaus kom rov zoo tom qab deformation | Tsis txhob tshav ntuj |
| Tiv thaiv qhov kub thiab txias | Tsis siv hauv cov dej kub | |
| Kuj tiv taus cov tshuaj lom neeg | Hloov pauv lawv qhov loj me thaum qhov kub hloov pauv | |
| Tsis muaj kev txawj tshwj xeeb xav tau rau kev teeb tsa | Nws tsis yooj yim sua kom ntxuav kab vim tias ib leeg-pob qij txha | |
| Tsis muaj ntsev tsim rau ntawm qhov chaw | ||
| Yuav muab ntsia tau rau hauv txoj kev kaw | ||
| Ib puag ncig zoo | ||
| Tus nqi qis | ||
| Lub cev hnyav | ||
| Zoo ntawm nqus suab los ntawm cov dej ntws | ||
| Kev pab lub neej ntev | ||
| Cov yeeb nkab sib txuas yog ib thooj thiab ntseeg tau heev | ||
| Muab rau hauv kev txiav loj los txo cov nqaws | ||
| Thaum dej khov, lawv tsis tawg | ||
| Hlau | Lub zog loj | Corroded |
| Tus nqi qis | Cov av thiab cov nyiaj tso rau ntawm phab ntsa | |
| Tsawg heev coefficient ntawm nthuav tawm nthuav dav | Cov pob qij txha raug tshem tawm tau, lawv xav tau kev saib xyuas tas li | |
| Reacts nquag nrog ntau yam tshuaj lom neeg | ||
| Hnyav hnyav, uas ua rau nyuaj rau kev teeb tsa thiab kev thauj mus los | ||
| Muab ua tej daim me me | ||
| Kev teeb tsa yuav tsum muaj cov kws tshaj lij tsim nyog | ||
| Cov thermal conductivity siab | ||
| Qhov kev pab cuam lub neej luv |
Cov neeg nyiam tshaj plaws yog cov kav dej ua los ntawm cov tshuaj propylene zoo li qub (PP-R).
Txheeb xyuas txog cov kav dej polypropylene rau dej
Cov neeg siv feem ntau ncua kev kho cov kav dej vim lawv tsis xav siv nyiaj ntau. Txog kev suav ntxaws, lawv coj tus nqi ntawm cov khoom siv hlau, uas txog rau tam sim no tau siv nyob txhua qhov chaw. Txawm li cas los xij, tus nqi kho tuaj yeem txo qis yog tias koj sib sau ua ke cov dej los ntawm cov kav dej polypropylene, tus nqi uas pheej yig rau txhua tus. Hauv qab no yog tshuaj xyuas cov kav dej polypropylene los ntawm cov kws ua haujlwm hauv tsev thiab cov neeg nyob hauv chav tsev zoo tib yam.
Vadim, 45 xyoos
Thaum lub sijhawm kho cov kav dej phwj tuaj, kuv tau pom txhua qhov zoo ntawm cov kav dej polypropylene. Tag nrho cov kav hlau hauv kab tau ib nrab ntim nrog cov ntsev ntsev, uas ua rau cov dej ntws tsis zoo mus rau lub kais dej. Cov ceg yas, uas tseem muaj nyob rau hauv txoj kev loj, ntawm qhov tsis sib xws, tseem tsis muaj dab tsi. Txhawm rau kom tsis txhob siv nyiaj, kuv hloov tsuas yog cov hlau nrog polypropylene. Kuv yuav cov khoob hauv cov khw muag khoom ntawm cov chaw tsim khoom lag luam uas paub zoo, tsis suav nrog cov khoom cuav uas yuav hla hauv khw.
Denis, 39 xyoos
Kuv tswj hwm pab pawg tsim kho uas teeb tsa cov kav dej hauv cov tsev tshiab. Peb cov neeg siv khoom feem ntau ua tsaug rau peb rau qhov tsis muaj cov kav dej ntawm cov phab ntsa - lawv txhua tus tau muab zais rau hauv qhov zawj. Kev teeb tsa zoo li no tsuas yog ua tau thaum ua haujlwm nrog cov khoom lag luam polypropylene, vim tias nws muaj peev xwm txuas cov kev txiav rau ib leeg siv cov hlau txuas. Cov pob qij txha yog airtight thiab txhim khu kev qha, lawv tsis tas yuav raug tshuaj xyuas, zoo ib yam li cov khoom siv hlau. Txawm tias tom qab ntau xyoo, lawv qhov kev ntseeg tsis poob qis.
Oleg, 39 xyoos
Kuv ua haujlwm ua tus thawj coj hauv chaw ua haujlwm vaj tsev, thiab feem ntau kuv yuav tsum tau kho cov kav dej hauv cov tsev. Cov kav hlau xeb yuav tsum tau kho ntau zaus. Nws yog qhov zoo yog tias koj tswj hwm los hloov chaw uas tau ua haujlwm rau lawv lub sijhawm. Qee lub sij hawm koj tsuas yog yuav tsum kaw cov kab nrib pleb nrog cov clamps thiab cia siab tias lawv yuav tsis tshwm rau lwm qhov. Kuv yeej tsis tau raug hu mus rau chav tsev uas cov kav dej tau ua los ntawm cov kav dej polypropylene. Kuv cov lus qhia ua tus kav dej: ua cov txheej txheem tawm ntawm cov yas thiab koj yuav tsis pom peb ntxiv lawm.
Nikita, 22 xyoos
Kuv tau txais ib chav tsev uas muaj teeb meem cov kav dej. Xam ntau npaum li cas yuav tsum tau siv los hloov nws. Nws tau muab tawm tias nrog kuv txhais tau tias kuv tsuas tuaj yeem yuav cov kav dej polypropylene, tsis muaj nyiaj txaus rau tus kws tshaj lij los sib sau ua ke. Tab sis kev teeb tsa ua haujlwm yooj yim heev uas kuv tau ua nws tus kheej. Kuv siv me ntsis nkaus xwb los xauj ib lub tshuab tooj liab. Kuv tseem tuaj yeem hais tias kuv yuav tsis lees txais kev teeb tsa cov kav hlau.
Yuav xaiv cov kav dej polypropylene rau dej li cas - saib cov vis dis aus:
Cov kav dej Polypropylene tau ua tiav hloov cov kav hlau ntawm lub hom phiaj zoo sib xws vim lawv cov nqi qis thiab kev ua haujlwm mus sij hawm ntev. Qhov ntau ntawm cov khoom lag luam yog qhov loj heev, yog li ntawd, ua ntej koj yuav cov kav dej polypropylene rau kev tso dej, nrhiav lawv qhov ntsuas, cov khoom thiab cov chaw tsim khoom pom zoo siv. Qhov kev xaiv raug yuav tso cai rau koj ua haujlwm rau lub sijhawm ntev yam tsis muaj kev kho.
