Kunzwisisa 2507 Murwi Mukuru weKuora

Simbi isina tsvina yemhando yepamusoro ye2507 super duplex yakawana mukurumbira wayo semushonga wekurwisa ngura. Resipi yayo yemakemikari ine huwandu hwakawanda hwechromium, molybdenum, uye nitrogen. Musanganiswa uyu unogadzira chimiro che micro-phase chakaenzana. Chimiro ichi chinopa zvinhu zvakaita se2507 S32750 Super Duplex Round BarDziviriro yakanakisisa kubva pakupwanyika kwegomba, ngura, uye ngura inoputika. Inoshanda zvakanaka munzvimbo dzine hukasha dzakadai semvura yegungwa nemafekitori ekugadzirisa makemikari, uko zvinhu zvakajairwa zvinokundikana.

Zvinhu Zvinokosha Zvaunofanira Kuziva

• Simbi ye2507 super duplex inorwisa ngura zvakanaka. Ine zvinhu zvakakosha zvakaita sechromium, molybdenum, uye nitrogen. Izvi zvinoita kuti ive yakasimba pakurwisa ngura nemavanga.
• Simbi iyi ine chimiro chakakosha chine zvikamu zviviri. Chimiro ichi chinoita kuti ive yakasimba uye yakasimba. Inoshanda zvakanaka munzvimbo dzakaoma dzakadai semvura yegungwa.
• Simbi ye2507 yakasimba kupfuura simbi isingasvibi. Inodzivirirawo ngura zviri nani. Ndokusaka ichishandiswa mumabasa akaoma akadai sekugadzira mafuta nemakemikari.
• Kushandisa simbi ye2507 kunodhura zvakanyanya pakutanga. Asi zvinogara kwenguva yakareba. Zvinoda kugadziriswa kushoma. Izvi zvinochengetedza mari kwemakore mazhinji.

Chii Chinotsanangura 2507 Super Duplex Steel?

Kushanda kwakanaka kwazvo kwe2507 simbi ine duplex yepamusoroinobva pazvinhu zviviri zvikuru: kuumbwa kwayo nemakemikoro chaiwo uye chimiro chayo chemukati chakasiyana. Zvinhu izvi zvinoshanda pamwe chete kugadzira chinhu chakagadzirwa zvakanaka kuti chikwanise kugara mumamiriro ezvinhu akaoma.

Nzira yeMakemikari yeKuramba Kurwisa

Simba remusanganiswa uyu rinotanga nemusanganiswa chaiwo wezvinhu. Kuwanda kwechromium, molybdenum, uye nitrogen ndizvo zvinonyanya kukonzera kugona kwayo kurwisa ngura. Mitemo yeindasitiri inotsanangura zvinhu izvi zvakakosha mukati memazinga akaenzana kuti ive nechokwadi chekuti zvinoshanda.

Fomura iyi yakapfuma inosiyanisa zvinhu kubva kune zvimwemagiredhi maviriSemuenzaniso, kana ichienzaniswa negiredhi rakajairika re2205, 2507 ine huwandu hwakanyanya hwezvinhu izvi zvakakosha zvinodzivirira ngura.

Kubatsira kweMagadzirirwo Ezvikamu Zviviri

Kupfuura kemikari yayo, chimiro chemukati chesimbi chinopa mukana wakajeka. Ine chimiro chemukati chezvikamu zviviri chakaringana, chine zvikamu zvakafanana zve austenite ne ferrite.

Izvi zvinorevei?
Chimiro ichi chine magadzirirwo maviri chinobatanidza hunhu hwakanakisa hwezvikamu zvese zviri zviviri. Chikamu cheferritic chinopa simba rakawanda uye chinodzivirira kuputika kwengura, ukuwo chikamu cheaustenitic chinopa kusimba kwakanaka uye chinodzivirira ngura.

Kuumbwa uku kwakaringana hakusi tsaona. Mainjiniya vanogadzira chimiro ichi kuti vawedzere kushanda zvakanaka. Kubatanidzwa kwezvikamu zve austenitic ne ferritic zvinobudirira kukanganisa kufambira mberi kwekuputika. Iyi nzira inoita kuti chinhu chidzivirirwe zvakanyanya kubva mukupwanyika kwe stress corrosion, nzira inowanzo kundikana munzvimbo dzine chloride yakawanda. Mugumisiro wacho ichinhu chakasimba chinochengetedza kunaka kwacho uko vamwe vangakundikana.

Zvimiro Zvikuru zveKushanda kwe2507

Mukurumbira wesimbi ye2507 super duplex wakavakirwa pahwaro hwehunhu hwekuita hunoyerwa uye hunoshamisa. Kemikari yayo yepamusoro uye chimiro chayo che microstructure zvinoshandura zvakananga kusimba repamusoro remakanika, kuramba ngura kunoverengeka, uye tembiricha inoshanda yakavimbika. Hunhu uhwu hunoita kuti ive chinhu chinosarudzwa zvakanyanya mumaindasitiri.

Simba Repamusoro reMichina

Simbi yeSuper duplex 2507 ine simba guru remakanika, inowanzopetwa kaviri kupfuura simbi dzesimbi dzisina kusimba dzakajairwa dzakadai se316L. Iyi chiyero chakasimba chesimba-kuhuremu chinopa mukana wakakura wekugadzira. Mainjiniya anogona kushandisa zvikamu zvakatetepa zvechinhu ichi pasina kukanganisa kunaka kwechimiro. Kugona uku kunoita kuti zvive nyore kushandisa uye zvingangoderedza mari yezvinhu zvacho uye zvingangoderedza mari yekuvaka.

Chiumbwa ichi chinopa simba rinoyevedza rekugadzira zvinhu rinosvika 550 MPa (80 ksi) uye simba rekudhonza rinodarika 800 MPa (116 ksi). Simba iri guru rinoita kuti zvikamu zvikwanise kutsungirira kumanikidzwa kwakanyanya uye mutoro unorema wemakanika.

Simba iri, pamwe chete nekudzivirira kwayo ngura, rinopa kuvimbika kwakasimba uko zvimwe zvinhu zvisingakwanise kuenzana nazvo mumamiriro ekushanda akaomarara.

Corrosion Resistance Metrics (PREN)

Mainjiniya anoshandisa chiyero chakati kuti vafanotaura uye vaenzanise kuramba ngura kwesimbi dzisina ngura. Chiyero ichi chinonzi Pitting Resistance Equivalent Number (PREN). PREN value yakakwira inoratidza kuramba ngura yenzvimbo, kunyanya kubva kumachloride.

PREN inoverengwa sei?
Fomura yakajairika yesimbi dzisina ngura mbiri muindasitiri ndeiyi:PREN = %Cr + 3.3(%Mo) + 16(%N)Fomura iyi inoratidza kuti chromium (Cr), molybdenum (Mo), uye nitrogen (N) chimwe nechimwe chinobatsira sei pakudzivirira kwesimbi.

Nekuumbwa kwayo kwemakemikari kwakawedzerwa, simbi ye2507 super duplex inowana PREN value yakakwira zvakanyanya kupfuura mamwe ma alloys akajairika. Iyi chiyero chepamusoro chinosimbisa chinzvimbo chayo seyakanakisa munzvimbo dzine chloride yakawanda.

Kukosha uku kwakakwirira kwePREN kunoreva zvakananga kushanda kwakavimbika muzvishandiso zvakaita semidziyo yepasi pegungwa uye nzvimbo dzinobvisa munyu, uko kuramba kukanganiswa negomba kwakakosha kuti basa rirambe kwenguva refu.

Nzvimbo Yekupisa Inoshanda Yakachengeteka

Magadzirirwo emhando mbiri eiyi supersimbi mbiriinodzora tembiricha yayo inoshanda zvakanaka. Chigadzirwa ichi chinochengetedza hunhu hwayo hwakanaka hwemakanika uye chinodzivirira ngura patembiricha inosvika 300°C (572°F).

Zvisinei, kugara uchisangana netembiricha dziri pamusoro pemuganhu uyu kwenguva refu kunogona kukonzera kuumbwa kwezvikamu zvinopfava mukati me microstructure. Kuchinja uku kunogona kuderedza kuomarara kwechinhu uye kuramba ngura. Pazasi, chiumbwa chinochengetedza kusimba kwakanaka kusvika -50°C (-58°F), kunyangwe chingave nekuchinja kwe ductile-to-brittle patembiricha yakaderera zvikuru. Kushanda mukati meiyi tembiricha yakatarwa kwakakosha kuve nechokwadi chekuti chinhu ichi chinopa kugona kwacho kwese.

2507 inoshandiswa kupi?

Hunhu hunoshamisa hwe2507 simbi ine duplex yepamusorozvinoita kuti ive chinhu chakakosha mumaindasitiri uko kusashanda kwezvinhu zvisiri sarudzo. Kusanganiswa kwayo nesimba rakawanda uye kuramba kwayo ngura kwakanyanya kunoita kuti ishande zvakanaka munzvimbo dzine hasha pasi rose. Mainjiniya anotsanangura chisanganiswa ichi kuti chishandiswe zvakanyanya muzvikamu zvemafuta negasi, zvegungwa, uye zvemakemikari.

Midziyo yeOiri neGasi Pasi pegungwa

Indasitiri yemafuta negesi iri mugungwa rakadzika inoshanda mumamiriro ezvinhu akaoma. Kumanikidzwa kwakanyanya, tembiricha yakaderera, uye kugara uchisangana nemvura yegungwa inoora zvinogadzira mamiriro ezvinhu akaoma kune chero chinhu. Simbi ine duplex yakawanda inobudirira pano, ichipa kugara kwenguva refu kwekuisa pasi pegungwa. Simba rayo guru rinobvumira zvikamu zvakareruka, mukana mukuru mumapurojekiti emvura yakadzika.

Nyaya Yenyaya:Kambani yemafuta yekuCanada yakabudirira kushandisa Super Duplex Stainless Steel 2507 pakugadzira pombi mumunda wemafuta uri pedyo neNewfoundland. Sarudzo iyi yakagadzirisa zvakananga dambudziko guru rekuora kwemvura yegungwa, zvichiratidza kukosha kwechinhu ichi mukushandiswa kwemvura yakadzika.

Midziyo yemugungwa yakajairika inobatsirwa neiyi alloy yepamusoro inosanganisira:

• Mapombi epasi pegungwa
• Mitsetse inoyerera uye zvinokwidza
• Masisitimu eAmbilical uye ekusungira
• Zvinobatanidza zvepasi pegungwa

Zvirimwa zvemugungwa nekubvisa munyu

Nzvimbo dzemugungwa uye maitiro ekubvisa munyu zvinoramba zvichirwisa ngura inokonzerwa nechloride. Zvivakwa zvegungwa reverse osmosis (RO), kunyanya, zvinoda zvinhu zvinogona kutsungirira mvura ine munyu wakawanda pakumanikidzwa kwakanyanya. Chidimbu che2507 mhinduro yakanaka kune mamiriro ezvinhu aya akaoma.

Zvikamu zvakakosha mumapombi ane simba repamusoro emvura yegungwa RO systems zvinowanzo gadzirwa nesimbi iyi ine duplex. Kusimba kwayo kunovimbisa kushanda kwakavimbika uye kunoita kuti michina inokosha ishande kwenguva yakareba. Chinhu ichi chinowanzoshandiswa ku:

• Mapaipi ane simba guru uye midziyo inobata mvura yegungwa nemunyu
• Zvikamu zvepombi nemabhokisi zvinosangana nekuyerera kwemhepo kwakasimba
• Masisitimu anoshanda mumamiriro emvura ine munyu wakawanda uye ine kumanikidzwa kwakakwira

Kugadziriswa Kwemakemikari Akasimba

Mafekitori ekugadzirisa makemikariInobata zvinhu zvakasiyana-siyana zvinoparadza, kubva kumaasidhi akasimba kusvika kune mhinduro dzine chloride yakawanda. Maumbirwo e2507 ane duplex inoita kuti zvinhu zvishande zvakanaka munzvimbo idzi dzakaoma zvikuru. Inoratidza kusimba kwakasimba pakuora kwakafanana kubva kumaasidhi asina kugadzirwa senge sulfuric nehydrochloric acid, kunyangwe kana yakasvibiswa nemachloride.

Waizviziva Here?
Mhando iyi yesimbi inoratidza kuramba kwakanyanya kune organic acids, senge dzinowanikwa mumiti yeterephthalic acid. Kushanda kwayo kunoita kuti ive sarudzo yekukwikwidzana pane akawanda ma alloy ane austenitic ne nickel alloys ane high-alloyed.

Kukwanisa kwayo kuramba ngura munzvimbo yayo kwakakosha. Chigadzirwa ichi chine tembiricha yakakosha yegomba inosvika 185°F (85°C) munzvimbo dzine chloride, iri nani kupfuura simbi dzemazuva ano dzisina ngura. Izvi zvinoita kuti ive chinhu chakavimbika chemidziyo yemiti, kusanganisira:

• Zvinoita simba uye midziyo yekumanikidza
• Zvinochinja-chinja kupisa uye zvinokonzeresa kupisa
• Matangi ekuchengetera zvinhu
• Masisitimu emapaipi

Zvinhu Zvinoshanda Pakushandisa 2507

Kunyange hazvo mashandiro esimbi ine duplex yakawanda asingaenzaniswi munzvimbo dzakawanda, hunhu hwayo hwehunyanzvi hunoda matekiniki chaiwo ekugadzira uye kunzwisisa kwakajeka kwehuwandu hwayo hwemari nebhenefiti. Kubata kwayo nemazvo kunoita kuti chinhu chacho chiwane simba rayo rakazara.

Maitiro Akanakisisa Ekubatanidza Nekugadzira Machining

Kugadzira alloy iyi inoshanda zvakanyanya kunoda kunyatsorongeka. Chimiro chayo chidiki chine zvikamu zviviri chinonyatsoenderana nekupisa, zvichiita kuti nzira dzekushongedza dzinodzorwa dzive dzakakosha.

Mitemo Yekushongedza
Vanowedera vanofanira kunyatsoongorora kupisa, kazhinji mukati me 0.5–2.0 kJ/mm. Tembiricha iri pakati peweld passes, inozivikanwa se interpass temperature, haifanirwe kudarika 150°C (300°F) kuchengetedza chimiro chesimbi chakaenzana.

Kusarudza simbi yakakodzera kwakakoshawo kuti simbi ishande zvakanaka. Sarudzo dzinokurudzirwa dzinosanganisira:

• 2507/P100 simbi yekuzadza kuti ive nechokwadi chekuti yakagadzirwa neduplex weld.
• Zvinhu zvinozadza nickel alloy, zvakaita seC276, zvinosimudzira kuramba ngura.
• 6% Molybdenum (Mo) fillers.

Kugadzira chinhu ichi kunounzawo matambudziko nekuda kwesimba rayo guru. Nzira dzakanakisisa dzinosanganisira kushandisa maturusi ecarbide akapinza, akafukidzwa uye mvura yekucheka yemhando yepamusoro. Vashandi vanogona kuvandudza mashandiro ekugadzira nekushandisa kumhanya kwakanyanya kwekucheka pamwe chete nekudzikira kwehuwandu hwekudya.

Kuongorora Mutengo vs. Kushanda Kwebasa

Simbi yeSuper duplex ine mutengo wepamusoro wekutanga wekutenga kana tichienzanisa nesimbi ye2205 duplex kana 316L stainless steel. Izvi zvinokonzerwa nehuwandu hwayo hwechromium, molybdenum, uye nitrogen. Zvisinei, kuenzanisa mutengo kuri nyore kunotsausa.

Ongororo yakarurama inoshandisa ongororo yeLife-Cycle Cost (LCC). Nzira iyi inotarisa mutengo wese wehupenyu hwese hwebasa rechinhu.

Fomura yeLCC:Mutengo wekutanga + Mari yekuchengetedza yehupenyu hwese + Mari yekutsiva - Kukosha kweRubatsiro

Kune midziyo inogara kwenguva refu (makore anopfuura 15) mukushandiswa kwakakosha, mari yakawanda yekutanga inowanzo fanirwa. Kusagadzikana kwakanyanya kwesimbi yesimbi kunoderedza kudiwa kwekugadzirisa, kugadzirisa, uye kudzima kwekushanda kunodhura. Munzvimbo umo kutadza kwezvinhu kunogona kutungamira mukurasikirwa kukuru, kuvimbika kwesimbi yesimbi yemhando yepamusoro kunopa mukana wakajeka wehupfumi muhupenyu hwayo hwese.

Zita rekuti "murwi wekupedzisira wekuora" re2507 rakagadzirwa zvakanaka. Kemikari yaro yakasarudzika uye magadzirirwo aro anopa simba rakakwirira uye kudzivirira ngura kusingaenzaniswi. Hunhu uhwu hunoita kuti ive yakakosha kumashandisirwo anonyanya kuoma mumaindasitiri. Zvisinei, mashandiro ayo anoenderana nekushandiswa kwakakodzera. Semuenzaniso, kutadza kuchinjana kupisa kwakaitika apo alloy yakasungirirwa kune chinhu chidiki, zvichikonzera kutsemuka. Nyaya iyi inoratidza kuti munzvimbo dzakaoma apo kutadza kushanda, mashandiro ealloy anoratidza kuti mutengo wayo uye kudiwa kwemaitiro akakodzera ekugadzira.

Mibvunzo Inowanzo bvunzwa

2507 yakasiyana sei nesimbi mbiri dze2205?

Super duplex 2507 ine chromium, molybdenum, uye nitrogen yakawanda kupfuura 2205 duplex steel. Musanganiswa uyu wakawedzerwa unopa simba rekudzivirira ngura uye simba guru remuchina. Kukosha kwayo kwepamusoro kwePREN kunosimbisa kushanda kwayo kwakawedzerwa munzvimbo dzine chloride yakasimba.

Chii chinoita kuti 2507 isapararire ngura?

Chromium yakawanda mu alloy iyi inoumba jira rinodzivirira. Molybdenum ne nitrogen zvinowedzera jira iri, zvichipa simba guru rekudzivisa ngura negomba. Musanganiswa uyu une simba unoita kuti rive rakanaka munzvimbo dzine chloride yakawanda semvura yegungwa.

Ko 2507 inogona kushandiswa here mukushandiswa kwekupisa kwakanyanya?

Mainjiniya anotsanangura 2507 kuti ishandiswe kusvika 300°C (572°F). Kugara kwenguva refu pamusoro pekupisa uku kunogona kuchinja magadzirirwo ayo, zvichideredza kusimba uye kuramba ngura. Inochengetedza hunhu hwakanaka mukupisa kwakaderera kusvika -50°C (-58°F), zvichiita kuti ikwanise kushandiswa mumabasa akawanda emaindasitiri.

Simbi ye2507 super duplex inodhura here?

Mutengo wekutanga wezvinhu zve2507 wakakwira kupfuura wesimbi dzisina ngura dzakajairwaZvisinei, kugara kwayo kwenguva refu kunoderedza kudiwa kwekugadzirisa nekugadzirisa kwenguva refu. Izvi zvinoita kuti ive sarudzo inodhura zvishoma kune zvakakosha uye zvinogara kwenguva refu uko kuvimbika kuri kukuru.