Habaynta kiimikada ee adeegga daran - sida wareegyada slurry catalyst, cutubyada coking-ka ee dib loo dhigay, iyo fal-galayaasha polymerization-ka ee polyethylene (HDPE) ee cufnaanta sare - kuraasta jilicsan ee polymeric ama elastomeric waa mas'uuliyad muhiim ah. Gelinta caadiga ah sida PTFE, RPTFE, ama xitaa PEEK la xoojiyay ayaa si dhakhso ah ugu dhacda awoodaha burburka ee ganaaxyada catalyst-ka ee xoqaya, nabaad-guurka farsamada, iyo wareegga kulaylka xad-dhaafka ah. Marka walxaha jilicsan ay burburaan, natiijadu waa isla markiiba: daadinta baakadaha, marin-u-socodka khadka, iyo xidhitaanka dhirta aan la filayn.
Si loo dammaanad qaado waqtiga shaqada farsamada iyo go'doominta buuxda ee deegaannada colaadda, khubarada otomaatiga ah ee habka iyo injineerada kalsoonida leh ayaa ka wareegaya waalka badeecadaha guud. Xalku wuxuu ku jiraa qalab aad loo farsameeyay oo heer sare ah.waalka kubbadda birta ah ee fadhiya.
At SHIRKADDA WAALKA NSW (nswvalve.com), waxaan soo saarnaa adeeg cadaadis sare leh oo daranwaalka kubbadda birta ah ee fadhiyaloogu talagalay in lagu baabi'iyo qaababka cilladaha caadiga ah ee nabaad-guurka iyo isku-xidhka kulaylka iyadoo la keenayo xidhitaan laba-jiho ah oo adag.
1. Birta Sare ee Sare: Farsamooyinka dahaarka HVOF ee loogu talagalay Walxaha Kubbadda ee Birta ku Fadhiya
Kalsoonida aasaasiga ah ee adeegga daranwaalka kubbadda birta ah ee fadhiyawaxaa lagu go'aamiyaa hufnaanta isku-xidhka iyo adkaanta dusha sare ee dahaarka wejiga. Halkii ay ku tiirsanaan lahayd koronto-samaynta dhaqameed,SHIRKADDA WAALKA NSWqalabShidaalka Ogsijiinta Xawaaraha Sare leh (HVOF)Buufinta kuleylka. Farsamadani waxay ku dabaqaysaa matrices-ka carbide-ka ee horumarsan substrates-ka daawaha sare leh, oo ay ku jiraan ASTM A351 CF8M, CF3M, iyo Super Duplex birta aan daxalka lahayn.
Inta lagu jiro habkayaga gaarka ah ee HVOF, isku-dhafka adag ee u jeeda ayaa lagu soo daraa durdur gubasho oo ay shidaal ka yihiin oksijiin iyo gaaska dabiiciga ah ee heerka sare ah. Walxaha ayaa si xawli ah u gaara xawaare sare oo ka badan kan caadiga ah.Mach 3, oo tamarta dhaqdhaqaaqa weyn u beddelaysa lakab cufan oo aad u hooseeya ($< 0.5\%$). Xoogga isku xidhka farsamada ee ka dhasha wuxuu ka badan yahay $10,000 \text{ psi}$ ($69 \text{ MPa}$), taasoo hubinaysa in dahaarka adag ee aanuwaalka kubbadda birta ah ee fadhiyama kala go'i doono marka la sameeyo jarista hydrodynamic ee xooggan.
| Matrix-ka dahaarka | Alloys Saldhigga Aasaasiga ah | Kala duwanaanshaha Micro-adkeysiga | Heerkulka ugu Sareeya | Codsiyada Caadiga ah |
|---|---|---|---|---|
| Tungsten Carbide (WC-Co-Cr) | Cobalt-Chromium-Nickel | 68 - 72 HRC | $750^\circ\text{F}$ ($400^\circ\text{C}$) | Catalyst Slurry, FCCU Slurry, Slime Tailings |
| Chromium Carbide ($Cr_3C_2\text{-NiCr}$) | Nikkel-Khromium | 56 - 62 HRC | $1500^\circ\text{F}$ ($815^\circ\text{C}$) | Dib u dhac ku yimid Coking-ka, Dib-u-soo-nooleynta Shaandhada Molecular-ka |
| Stellite 6 / 12 | Xalka Adag ee Cobalt-Saldhigga | 40 - 48 HRC | $1000^\circ\text{F}$ ($538^\circ\text{C}$) | Uumi Cadaadis Sare leh, Biyaha Kuleyliyaha |
Xulashada Dahaarka Gaarka ah ee Codsiga:
- Tungsten Carbide (WC-Co-Cr): Si gaar ah loogu talagalay xoqidda walxaha culus ee gudahayagawaalka kubbadda birta ah ee fadhiyaMatrix-ku wuxuu bixiyaa adkaan yar ilaa72 HRC, oo u dhaqma sidii hub aan la geli karin oo ka dhan ah ficilka xoqidda ee ganaaxyada kiciyaha iyo adkeysiga silica.
- Chromium Carbide ($Cr_3C_2\text{-NiCr}$): Waxaa loo farsameeyay warbaahinta oksaydhka heerkulka sare leh. Waxay ilaalisaa xasilloonida qaab-dhismeedka kristalinta ilaa $1500^\circ\text{F}$, taasoo ka hortagaysa jajabka yar ee kulaylka iyo cabbirka kaas oo caadiyan burburiya warshadahawaalka kubbadda birta ah ee fadhiyainta lagu jiro gariirka kulaylka degdegga ah.
2. Ka saarista daadinta asalka iyada oo loo marayo farsamada Mate-Lapping
Khalad khaldan oo soo noqnoqda oo ka dhex dhaca naqshadeeyayaasha tuubooyinka ayaa ah inwaalka kubbadda birta ah ee fadhiyawaa inay tanaasul ka sameeyaan adkeynta shaabadeynta.SHIRKADDA WAALKA NSWwaxay meesha ka saartaa marin-habaabinta kursiga ee asalka ah iyada oo loo marayo hal-cutub oo gaar ahHab-raaca Mate-Lapping.
Halkii laga isticmaali lahaa qaybo badan oo ka soo horjeeda qaababka caadiga ah ee caadiga ah, kubad kasta oo gaar ah waxaa lagu lamaaneeyaa giraanta kursiga birta ah ee gaarka ah. Farsamayaqaannadu waxay isticmaalaan hab farsamo oo marxalado badan leh oo leh dhexdhexaad dheeman ah oo si tartiib tartiib ah u qurxinaya, iyagoo ku dhammeynaya ilaaKoollada 1-micron grit.
Iswaafajinta saxda ah waxay gaartaa xarig xiriir ah oo joogto ah oo aan cillad lahayn oo $360^\cir$ ah. Isku-midnimada joomatari ee ka dhalatay waxay la jaanqaadaysaa heerarka interferometry-ga iftiinka, taasoo awood u siinaysa NSWwaalka kubbadda birta ah ee fadhiyasi joogto ah loo gaaroHeerka ISO 5208 A iyo API 598 oo aan lahayn daadashowaxqabadka iyadoo la adeegsanayo tijaabinta gaaska cadaadiska sare leh - taasoo keenaysa fulinta xumbo adag oo loogu talagalay naqshad xidhitaan bir ah oo culus.
3. Maareynta Adkaha Firfircoon: Kuraasta Xoqidda iyo U hoggaansanaanta Kulaylka
Isticmaalka walxaha culus ee slurry ama polymer-ka, walxaha ku xiran ayaa ku dhex milmi kara kubadda iyo kursiga inta lagu jiro dhaqdhaqaaqa rubuc-rogga, taasoo keenta dhibco qoto dheer oo xoqan ama suuxdin farsamo. NSW waxay xallisaa nuglaantaan iyada oo loo marayo hab la hagaajiyay.Astaamaha Kursiga Xoqistaoo lagu daray rarista farsamada firfircoon ee hore.
[Xiddi Socodka Habka] ----> ====================================================== | | [Derbiga Jirka ee Valve] | | +----+---+---+ | Belleville | <-- Inconel 718 Gu'ga (Rarista Tooska ah ee Axial) | Gu'ga | +----+---+---+ | | +----+---+---+ | Kursiga Birta | <-- HVOF Dahaarka Adag ee Sare (>= 68 HRC) +----+--+---+ \ \ [Geeska Xoqista Sharp] <-- Dhisidda iyo miisaanka bolomka Shears \________ ( ) ( Kubbadda ) <-- Qaybta Xidhitaanka ee Sax ah ee Mate-Lapped (____)
Astaanta Cidhifka Is-nadiifinta
Dibinta shaabadaysan ee giraanta kursiga birta ah waxay leedahay gees joomatari oo fiiqan oo makiinado leh. Marka kubbadu u dhaqaaqdo booska xiran, astaantani waxay u dhaqantaa sidii xoqe farsamo, oo jaraya cabbirka, kaydka kiristalline-ka, iyo ururinta polymer-ka dhegdheg leh ka hor inta aysan gelin wejiga shaabadaynta eewaalka kubbadda birta ah ee fadhiya.
Magdhawga Ballaarinta Kulaylka
Hawsha kiimikada ee heerkulka sare leh waxay keenaysaa khatarta isku xidhka kulaylka. Marka warbaahinta hab-raacu ay kor u kacdo heerkulka, heerka ballaarinta kubbadu wuxuu ka gudbi karaa jirka waalka, isagoo waalka ku xiraya meeshiisa.
NSW waxay ka gudubtaa arrintan iyadoo rakibaysa qalab culus oo u adkaysta daxalkaIlaha hirarka ee Inconel 718 Bellevillegadaasha fadhiga kursiga. Qaabeyntani waxay ilaalisaa shaabad ammaan ah oo cadaadis hoose leh iyadoo bixinaysa dabacsanaan farsamo oo loo baahan yahay si loo nuugo ballaarinta kulaylka.
4. U hoggaansanaanta Deegaanka: Baakad Hoose iyo Badbaadada Dabka
Amarka deegaanka ee guud ahaan Waqooyiga Ameerika wuxuu u baahan yahay dulqaad la'aan qiiqa soo baxa. Jirridda waalka ayaa ah isha ugu badan ee xadgudubyada EPA LDAR (Deeq-bixinta iyo Dayactirka).
Ka Hortagga Qiiqa Baxsadaha: NSWwaalka kubbadda birta ah ee fadhiyaku dar isku-dubarid baakado jirrid ah oo si toos ah loo raray oo shahaado haystaAPI 641waalka rubuc-rogidda, iyadoo la isticmaalayoAPI 622Xirmooyinka baakadaha graphite dabacsan ee qaabaysan. Culayska cadaadiska ayaa si joogto ah loo ilaaliyaa iyada oo loo marayo dhaqayaasha guga ee Belleville, iyadoo si guul leh looga ilaalinayo daadinta jirridda hoosteeda.100 ppmvinta lagu jiro wareegyada kulaylka ee dheeraadka ah.
Badbaadada Dabka ee Dhaxalka ah: Si buuxda ayaa loo xaqiijiyayAPI 607 iyo API 6FAshuruudaha. Maadaama xadka cadaadiska, walxaha xidhitaanka, iyo shaabadaha jirida ay ka kooban yihiin bir adag oo weji adag leh iyo garaafit cufnaan sare leh, waalku wuxuu ilaaliyaa go'doomin qaab dhismeed oo buuxa inta lagu jiro soo-gaadhista dhacdo dab haydarokarboon ($1400^\circ\text{F}$ ilaa $1800^\circ\text{F}$).
Tilmaamaha Tilmaamaha Iibsiga Injineerinka
Xaashiyaha xogta mashruuca ee soo socda, qeexitaannada walxaha tuubooyinka (PMS), ama liisaska iibiyaha, adeegga daranwaalka kubbadda birta ah ee fadhiyataxane ka socdaSHIRKADDA WAALKA NSWwaxay leedahay xuduudaha naqshadeynta ee soo socda:
- Naqshadeynta & Xeerarka Wax Soo Saarka: API 6D, ASME B16.34, API 608, ISO 17292
- Fasallada Cadaadiska ee la heli karo: Fasalka ASME 150, 300, 600, 900, 1500, 2500
- Cabbirka Cabbirka: NPS 2″ ilaa NPS 48″ (Waxaa laga heli karaa Dekedda Buuxda iyo Ceelka La Dhimay)
- Birta Xuduudda Cadaadiska: ASTM A216 WCB/WCC, A351 CF8M/CF3M, A890 4A/5A/6A (Duplex/Super Duplex), Hastelloy C276, Inconel 625
- Adkaynta Dusha Sare ee Kursiga iyo Kubadda: HVOF Super-Case Tungsten Carbide (WC-Co-Cr) ama Chromium Carbide ($Cr_3C_2\text{-NiCr}$)
- Heerarka Xiritaanka La Xaqiijiyay: Heerka ISO 5208 A, API 598, ANSI/FCI 70-2 Fasalka VI
- Shahaadooyinka Sharciyeynta: NACE MR0175 / ISO 15156, API 607 (Dab-badbaado), API 641 (U hoggaansanaanta Qiiqa Baxsadaha)
Waqtiga boostada: Luulyo-09-2026