Chii chinonzi vharuvhu yegedhi rebanga repolyurethane
Vharuvhu yegedhi rebanga rePolyurethanezvinoreva vharuvhu yegedhi rebanga ine chisimbiso chechigaro chevharuvhu yepolyurethane.Polyurethane (PU)ine hunhu hwekudzivirira mafuta, kudzivirira kupera, kudzivirira kupisa kwakaderera, kudzivirira kukwegura, kuomarara kwakanyanya, kuchinjika kwakanaka uye kushanda zvakanaka kwekudzivirira chepfu. Inowanzo shandiswa pakugadzira zvidimbu zvekuomarara zvakanyanya uye mapaipi epakati ane gasi nemvura. Ine kushanda kwakanaka kwekuvhara uye kudzivirira kupera kwakasimba.
Polyurethane inozivikanwa se "rabha isingaparare". Kusasimba kwayo kwemafuta hakuna kuderera pane rabha ye nitrile uye kwakaenzana nerabha ye polysulfide. Yakakodzera zvikuru mapaipi akasiyana-siyana epakati anoda kuvharwa kwakanyanya uye kukurwa kwezvimedu zvine simba guru.
| Kuongorora Kushanda Kwezvinhu zvePolyurethane | ||||
| Maitiro ekuumba | Zvikamu zvikuru zvemakemikari zve polyurethane | |||
| Kuumbwa kwejekiseni rinomanikidzwa zvakanyanya | Isocyanate Polycarbonate | |||
| Magadzirirwo ePolyurethane Performance | ||||
| Kuwanda kwevhoriyamu g/cm3 | Simba rekusimba N/mm | Kuoma kweGungwa A | Kureba kwakagadzika N/mm2 | Kureba panguva yekuputsika % |
| 1.21+0.02 | Miniti 45 | 95+5 | Miniti 15 | Minimum 300 |
Ruzivo rwechigadzirwa chePolyurethane Knife Gate Valve
NZIRA YECHIGADZIRWA:
Saizi: NPS 2 kusvika NPS 48
Kudzvanyirira Range: Kirasi 150, PN16, PN10
Kubatanidza Flange: Flange
Kushanda: Manual, electric, gearbox, pneumatic, manual pneumatic, hydraulic, electro-hydraulic, sprocket, lever
Yakakodzera Pakati: Pulp, tsvina yetsvina, marasha, dota, zvidimbu, guruva, musanganiswa wemvura ine tsvina
Zvishandiso zveVharuvhu yeGedhi reBanga:
Kukanda:(GGG40, GGG50, A216 WCB, A351 CF3, CF8, CF3M, CF8M, A995 4A, 5A, A352 LCB, LCC, LC2) Monel,
Inconel, Hastelloy, UB6
Maitiro ePU Knife Gate Valve
| Dhizaini & kugadzirwa | MSS SP-81 |
| Kutarisana | MSS SP-81 |
| Kugumisa Kubatanidza | ASME B16.5, ASME B16.47, MSS SP-44 (NPS 22 Chete) |
| Kuedza & kuongorora | MSS SP-81 |
| Inowanikwawo pa | NACE MR-0175, NACE MR-0103, ISO 15848 |
| Zvimwe | PMI, UT, RT, PT, MT |
Zvimiro zveDhizaini:
Polyurethane Banga Gate Valveizvo zvinoita kuti ive imwe yezvinhu zvakanakisisa zvinodzivirira kukuvadzwa. Vharuvhu yedu yePolyurethane Knife Gate Valve (NSW) yakazara neurethane yemhando yepamusoro, iyo inodarika nguva yekupfekwa kwegum rabber uye chero imwe liner yakapfava, kana zvinhu zvemaoko.
1.Kusabuda kwemvura zvachose: Muviri wevharuvhu yeurethane yakazara uye chisimbiso chegedhi che elastomer chakaumbwa zvinodzivirira kubuda kwemvura zvachose, zvese kuvhara kwevharuvhu pamwe nemuviri wevharuvhu pachayo panguva yekushanda.
2.Nguva yekupfekwa kwenguva refu: Mapurasitiki eurethane anodzivirira kukuvadzwa, uye magedhi emapanga asina ngura akasimba pamwe nedhizaini yakasiyana yevharuvhu pachayo inopa hupenyu hurefu hwebasa.
3.Kuvharwa kwenzira mbiri: Kana mvura yadzoka kubva mudumbu ikaitika, NSW inogona kushandiswawo semudziviriri.
4.Dhizaini yekuzvishambidza: Panguva yekuvhara vharuvhu, gedhi rebanga rakachekwa rinodzosera slurry inoyerera ichienda kuchigaro che urethane liner chakachekwa, rinoita turbulence uye rinowedzera kuyerera kwemvura yobva yaburitsa slurry pasi pe urethane sezvo gedhi richigara pachigaro.
5. Kuvakazve zviri nyoreKana pave nekudiwa kugadzirazve, zvikamu zvakasakara (urethanes, gate seals, knife gates) zvinogona kutsiviwa zvese mumunda. Mavharuvhu nezvimwe zvikamu zvinogona kushandiswazve.
Sarudzo
1. Mhete Yechigaro (Liners):Mhando dzakasiyana dzeurethanes dziripo.
2. Magedhi eVharuvhu:Magedhi eSS304 ane chromium yakaoma akafukidzwa ndiwo akajairwa. Mamwe ma alloys anowanikwa (SS316, 410, 416, 17-4PH…) Magedhi ekuwedzera anowanikwawo.
3. PN10, PN16, PN25, 150LB, dziripo.
4. Pane ma actuator ekusarudza anowanikwa.
Nguva yekutumira: Gumiguru-13-2021