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Sei tichisarudza PVDF mavharuvhu, pombi fittings uye pombi?
Sei tichisarudza PVDF mavharuvhu, pombi fittings uye pombi?
Kune UPVC, CPVC, PPH, PVDF, FRPP mavharuvhu, pombi fittings uye pombi pamusika. Sei tichisarudza PVDF zvinhu? Kutanga tinofanira kuziva hunhu hunotevera hwePVDF:
Chii chinonzi PVDF Material Characteristic?
Polyvinylidene fluoride, inonzi PVDF, imonoma inoumbwa ne trifluoroethylene, hydrofluoric acid uye zinc poda, uye mushure mepolymerization kugadzira chena crystalline yakasimba.
Mushure mekupisa kunopisa kunyunguduka butt welding, chinongedzo chinozogadziriswa muchina unopisa unonyungudika butt welding muchina, uye kutonhorera chinongedzo zvinoenderana nenguva yekutonhora iyo inotsanangurwa mumirau yekumanikidza kuchengetedza uye kutonhora kweanopisa melt butt welding muchina. Mushure mekutonhora, dzikisa kumanikidza kusvika zero, uye wozobvisa welded pombi/fittings.
Chii chinonzi PVDF Physical Properties?
| Item | Unit | Standard Value | Standard |
| Density | kg/m³ | 1770–1790 | ISO 1183 |
| Vicat | ℃ | ≥165 | ISO 2507 |
| Tensile Simba | MPa | ≥40 | ISO 6259 |
| Impact Simba (23 ℃) | KJ/m² | ≥160 | ISO 179 |
| Vertical Retraction Ratio (150 ℃) | % | ≤2 | ISO 2505 |
1.Temperature kuramba:
PVDF pombi system ine yakanaka yekudziya kugadzikana, inogona kuchengetedza yakagadzikana mashandiro munzvimbo dzakasiyana tembiricha, yakanyanya kushandiswa kwenguva refu tembiricha inosvika 150 ° C kana zvakadaro.
2.Mechanical simba:
Zvichienzaniswa nezvimwe zvinhu zvepurasitiki, maPVDF mavhari, pombi mafittings uye mapaipi ane simba rakanyanya kusimba, kukanganiswa kwemaitiro uye abrasion kuramba, uye anogona kuchengetedza kuomarara uye kusimba kunyangwe pakudziya kwakaderera.
3.Dimensional kugadzikana:
PVDF mavhairi, pombi fittings uye mapaipi anoratidza diki coefficient of thermal kuwedzera kana pasi pekupisa kana kutonhora, saka inokwanisa kuchengetedza yakagadzikana dimensional kurongeka.
4.Kuoma uye kuoma:
kuoma kwepamusoro uye kusimba kwakanaka, zvichiita kuti pombi isava nyore kukanganisa uye nyore kuisa.
Chii chinonzi PVDF Chemical properties?
1.Chemical corrosion resistance:
PVDF mavhairi, pombi mafiti uye mapaipi ane yakakwira makemikari inertness kune akawanda asidhi, alkalis, munyu uye akawanda organic zvinonyungudutsa, inova ndiyo yakanakira pombi zvinhu zvekufambisa zvinoparadza midhiya mumunda weindasitiri yemakemikari.
2.Non-adhesion:
yakatsetseka pamusoro, isiri nyore kuomerera kune izvo zvinhu, izvo zvinogona kuderedza kuunganidzwa kwechiyero uye kuvhara chiitiko mukufambisa.
Chii chinonzi PVDF zvigadzirwa zvekubatanidza nzira?
Zvakangofanana nePPH, PVDF pombi system inosungirirwa nekupisa kunyunguduka zvakare, iyo zvakare inogona kukamurwa kuita inopisa melt socket welding uye inopisa melt butt welding. Iwo chaiwo matanho ekupisa melt socket welding zvakafanana nePPH futi.
Iwo chaiwo nhanho dzekupisa kunyungudika butt welding yePVDF yakafanana nePPH futi, asi kune mamwe akasiyana pane process reference, zvinyorwa sezviri pazasi:
| Nominal wall ukobvu/MM | Kurongedza | Kupisa | Transfer | Welding | |
| 240℃±8℃ Chikamu chekudziyatembiricha 240℃±8℃ | |||||
| Kureba kweflap pa inopisa chikamu pakupera kwe nguva yekuenzanisa (min) (kurongeka p=0.01N/mm2)/mm | kupisa nguva≈10e+40s | Nguva yekufambisa (max)/s | Welding pressure nguva/s | Kutonhora nguva pasiwelding pressure (min)[p(0.10+0.01)N/ mm2 t≈1.2e+2min]/min | |
| 6.0～10.0 | 0.5～1.0 | 95～140 | USD 4.00 | 5～7 | 8.5～14 |
| 10.0～15.0 | 1.0～1.3 | 140~190 | USD 4.00 | 7～9 | 14～19 |
| 15.0～20.0 | 1.3～1.7 | 190 -240 | USD 5.00 | 9～11 | 19～25 |
| 20.0～25.0 | 1.7～2.0 | 240～290 | USD 5.00 | 11～13 | 25～32 |
Kuenzanisa Kwehunhu:
Misiyano yeU-PVC, PPH uye C-PVC zvigadzirwa pakushanda tembiricha uye nzira yekubatanidza
| Misiyano yeU-PVC, PPH uye C-PVC zvigadzirwa pakushanda tembiricha uye nzira yekubatanidza | |||
| Zvishandiso | Max kushanda tembiricha | Kuenderera Kushandisa Tembiricha inofanira pazasi | Yakabatanidzwa na |
| UPVC | 60 ℃ | 45℃ (0~45℃) | Simende |
| PPH | 110 ℃ | 90℃ (0~90℃) | Kupisa meld socket welding uye welding yemagaro |
| CPVC | 110 ℃ | 95℃ (0~95℃) | Simende |
| PVDF | 200 ℃ | 150℃ (-30~150℃) | Kupisa meld socket welding uye welding yemagaro |
Ndeipi indasitiri kunyorera PVDF mavharuvhu, pombi fittings uye pombi?
1. Indasitiri yemakemikari:
Inoshandiswa zvakanyanya mumhando dzakasiyana siyana dzemakemikari muhurongwa hwekutakura mvura, sekutakura asidhi, alkali mhinduro, oxidants, zvinonyungudutsa uye zvimwe zvinoparadza zvinhu.
2. Semiconductor uye indasitiri yemagetsi:
Munzvimbo yakachena yekamuri ye ultrapure mvura yekuendesa sisitimu, pamwe nekuchengetedza kemikari uye yekugovera sisitimu seyakasarudzika pombi zvinhu.
3.Environmental protection engineering:
PVDF mavhairi, pombi mafirita uye mapaipi anoshandiswa zvakanyanya kudzivirira kutu uye kuenderana kwebio mukurapwa kwemvura yetsvina, kuchenesa mvura yegungwa, uye matanho ekutanga ekurapa uye epashure ekurapa ereverse osmosis membrane system.
4. Pharmaceuticals uye biotechnology:
Muchigadzirwa chekugadzira chinoda kudzora kwakasimba kwekusvibiswa uye kudzivirira kwezviitiko zvekuberekesa hutachiona, PVDF pombi nekuda kwehutsanana hwayo hwepamusoro, isina chepfu uye haina hwema uye inoshandiswa kuendesa mvura yakachena, mishonga yepakati kana zvimwe zvinwiwa.
5. Indasitiri yemagetsi neyenyukireya:
Nekuda kwekushomeka kwemwaranzi uye kupisa kwekushisa kwakanyanya, inoshandiswa zvakare mumhepo inotonhorera yemamwe magwenya emagetsi enyukireya uye mamwe masimba emagetsi.
Muchidimbu, polyvinylidene fluoride pombi yave sarudzo yakanaka yepombi kune akawanda ekupedzisira-ekupedzisira uye ane hutsinye maapplication nekuda kwekunaka kwayo kemikari kuramba, kusimba kwepamusoro, yakanakisa tembiricha kuramba uye yakanaka magetsi ekudzivirira zvivakwa.