Ipayipi Lensimbi Engagqwali YaseShayina engu-6 - 904L ipayipi lensimbi engenamthungo - i-Huaxin

1. Incazelo Elula:

I-904L super austenitic insimbi engagqwali iyikhabhoni ephansi, i-nickel ephezulu, i-molybdenum austenitic stainless stainless acid resistant.

Ibanga le-GB: 00Cr20Ni25Mo4.5Cu

Ibanga lamazwe ngamazwe: 904L

IBanga elijwayelekile laseMelika: UNS:N08904

Ibanga le-EN: 1.4539

Ibanga likasayizi: 10*2mm kuya ku-219*15mm noma ngokwezifiso ngokwesicelo seklayenti

Ubude Range: 300mm ukuze 20000mm

2. Ukwakheka Kwamakhemikhali:

3. Izakhiwo zikaMechanical:

4.904L Incazelo:

1) Super austenitic insimbi engagqwali 904L (00Cr20Ni25Mo4.5Cu; UNS: N08904; EN: 1.4539)

i-alloy high austenitic engagqwaliinsimbi enokuqukethwe kwekhabhoni ephansi.

Inokumelana nokugqwala okuhle ku-dilute sulfuric acid futhi yakhelwe ngokukhethekile izindawo

nezimo ezinzima zokugqwala. Inokuqukethwe okuphezulu kwe-chromium nokuqukethwe kwe-nickel okwanele. Ukwengezwa kwethusi kwenza kube nayo

ukumelana ne-asidi eqinile, ikakhulukazi ukumelana nokugqwala kwe-chloride interstitial kanye nokuqhekeka kokugqwala kwengcindezi. Akulula ukuvela

izindawo zokugqwala nemifantu. Ukumelana kwayo nokugqwala kwe-pitting kungcono kancane kunokwezinye izinsimbi. Inokucutshungulwa okuhle futhi

weldability, futhi ingasetshenziselwa imikhumbi yokucindezela.

2) Isakhiwo se-Metallographic se-904L yensimbi engagqwali:

I-904L iyisakhiwo se-austenitic ngokuphelele. Uma kuqhathaniswa nensimbi evamile ye-austenitic engagqwali enokuqukethwe okuphezulu kwe-molybdenum,

I-904L inomthelela obalulekile ku-ferrite futhi α Imvula yesigaba ayizweli.

a. Izakhiwo zomzimba nezemishini:

Ukuminyana: 8.0g/cm3. Amandla aqinile: σ b≥520Mpa. Ubude: δ ≥35%. Ukumelana nokugqwala kwensimbi engagqwali engu-904L:

Ngoba okuqukethwe kwekhabhoni engu-904L kuphansi kakhulu (ubukhulu obungu-0.020%), ngeke kube khona imvula ye-carbide ngaphansi kokujwayelekile

ukwelashwa ukushisa kanye nezimo zokushisela. Lokhu kuqeda ubungozi bokugqwala kwe-intergranular ngemuva kokwelashwa okushisa okujwayelekile kanye nokushisela.

Ngenxa yokuqukethwe okuphezulu kwe-chromium, i-nickel ne-molybdenum kanye nokwengezwa kwethusi, i-904L ingadluliswa ngisho nasekunciphiseni.

izindawo ezifana ne-sulfuric acid ne-formic acid.

Okuqukethwe kwe-nickel ephezulu kuyenza ibe nezinga lokugqwala eliphansi esimweni esisebenzayo. Ebangeni lokuhlushwa lika-0 ~ 98% we-sulfuric acid ehlanzekile,

izinga lokushisa lokusebenzisa lika-904L lingaba phezulu njenge-40 ℃. Ukumelana nokugqwala kwe-phosphoric acid emsulwa ebangeni lokuhlushwa lika-0~85%.

kuhle kakhulu.

Ku-acid ye-industrial phosphoric ekhiqizwa inqubo emanzi, ukungcola kunomthelela onamandla ekuphikiseni ukugqwala. Phakathi kwazo zonke izinhlobo

ye-phosphoric acid, i-904L inokumelana nokugqwala okungcono kunensimbi engagqwali evamile. Ku-oxidizing nitric acid eqinile, ukumelana nokugqwala kwe-904L

iphansi kunaleyo yensimbi ephezulu enengxubevange ngaphandle kwe-molybdenum. Ku-hydrochloric acid, ukusetshenziswa kwe-904L kunqunyelwe ku-1-2% yokuhlushwa okuphansi.

Kulolu hlu lokuhlushwa. Ukumelana nokugqwala kwe-904L kungcono kunokwensimbi evamile engagqwali. Insimbi engu-904L inokumelana okuphezulu

ukugqwala kwendawo.

Esixazululweni se-chloride, ukumelana nokugqwala kwe-crevice nakho kuhle kakhulu. Okuqukethwe kwe-nickel ephezulu okungu-904L kunciphisa izinga lokugqwala emigodini nasemifantwini.

Lapho izinga lokushisa elivamile le-austenitic stainless steel lingaphezu kuka-60 ℃, lingase libe nomuzwa wokugqwala kwengcindezi ku-chloride ecebile.

imvelo.

Lokhu kuzwela kungancishiswa ngokwandisa okuqukethwe kwe-nickel yensimbi engagqwali. Ngenxa yokuqukethwe okuphezulu kwe-nickel, i-904L inokumelana okuphezulu nayo

i-stress corrosion ukuqhekeka kusixazululo se-chloride, isixazululo se-hydroxide egxilile kanye nemvelo ecebile nge-hydrogen sulfide.

Izinto zokuthungatha ezisekelayo: induku yokushisela (E385-16/17), intambo yokushisela (ER385).

b. Izinyathelo zokuqapha zokusetshenziswa kwe-904L:

1. Ukucutshungulwa

1.1 Ukusebenza kwe-Welding

Njengensimbi engagqwali evamile, i-904L ingashiswa ngezindlela ezihlukahlukene zokushisela. Indlela evame kakhulu yokushisela i-arc manual noma

I-inert gas shieded welding.

I-electrode noma insimbi yocingo isekelwe ekwakhiweni kwesisekelo sensimbi futhi inokuhlanzeka okuphezulu. Okuqukethwe kwe-molybdenum kuyadingeka

ephakeme kunesisekelo sensimbi.

Ukushisa kuqala akudingekile ngaphambi kokushisela, kodwa ekusebenzeni kwangaphandle okubandayo, ukugwema ukufiphala komhwamuko wamanzi, amajoyinti noma eduze.

izindawo zingashiswa ngokulinganayo.

Izinga lokushisa lasendaweni akufanele lidlule ku-100 ℃ ukugwema ukunqwabelana kwekhabhoni kanye nokugqwala kwe-intergranular. Amandla omugqa amancane, aqhubekayo

futhi izinga lokushisela ngokushesha kufanele lamukelwe ngesikhathi sokushisela.

Ngokuvamile, ukwelashwa kokushisa akudingeki ngemva kokushisela. Uma kudingeka ukwelashwa kokushisa, kufanele kushisiswe ku-11000 ～ 1150 ℃ bese kupholiswa ngokushesha.

1.2 Ukusebenza komshini

Izici zemishini ye-904L ziyefana nezinye izinsimbi ezingenasici ze-austenitic. Kukhona ukuthambekela kokunamathela kwamathuluzi nokusebenza kanzima ngesikhathi sokucubungula.

Amathuluzi e-Carbide ane-pozitive rake angle kumele asetshenziswe, futhi amafutha afakwe isibabule kanye ne-chlorine azosetshenziswa njengesipholile sokusika. Izinto zokusebenza kanye nenqubo kuzoba phezu kwesisekelo

ukunciphisa ukuqina komsebenzi. Isivinini sokusika kancane kanye nezinga lokudla kufanele kugwenywe ngesikhathi sokusika.

5. Ukukhiqizwa okuhlobene:

6. Ukwelashwa okwengeziwe

1) IsiPolish

2) Ukumaka:

7 . Ukupakisha nokulayisha:

8. Isicelo:

I-904L isetshenziswa emikhakheni elandelayo:

*Imishini kaphethiloli neye-petrochemical, njengama-reactors kumishini ye-petrochemical.

*Impahla yokugcina neyokuthutha ye-sulfuric acid, njengesishintshi sokushisa.

*Idivayisi ye-flue gas desulfurization yesikhungo samandla isetshenziswa kakhulu emzimbeni we-absorber, flue, shutter, internals, spraying system, njll.

*I-Scrubber ne-fan ohlelweni lwe-organic acid yokwelapha.

*Isikhungo sokuhlanza amanzi olwandle, isishintshi sokushisa kwamanzi olwandle, okokusebenza kwemboni yephepha, i-sulfuric acid kanye nemishini ye-nitric acid, ukwenza i-asidi,

imboni yemithi kanye nezinye izinto zamakhemikhali, imikhumbi yokucindezela, imishini yokudla.

*Imboni yemithi: i-centrifuge, i-reactor, njll.

*Ukudla kwemifino: ibhodwe lesoso yesosi, iwayini lokupheka, ibhodwe likasawoti, izinto zokusebenza nezinto zokugqoka.

*904L iyinsimbi ehambisanayo ye-dilute sulfuric acid eqinile edlayo.