Ixabiso eliKhethekileyo loMbhobho weGesi yeNsimbi eNgatyiwayo-904L umbhobho wentsimbi ongenamthungo-Huaxin
Ixabiso eliKhethekileyo loMbhobho weGesi yeNsimbi eNgatyibilikiyo - 904L umbhobho wentsimbi ongenamthungo – Iinkcukacha zeHuaxin:
1. Ingcaciso elula:
I-904L super austenitic steel stainless is a low-carbon, high nickel, molybdenum austenitic stainless acid resistant steel.
Ibakala le-GB: 00Cr20Ni25Mo4.5Cu
IBanga lamazwe ngamazwe: 904L
IBanga elisemgangathweni laseMelika: UNS:N08904
IBanga le-EN: 1.4539
Uluhlu lobungakanani: 10*2mm ukuya ku-219*15mm okanye ngokwezifiso ngokwesicelo somthengi
Ubude Uluhlu: 300mm ukuya 20000mm
2. Ukuqulunqwa kwemichiza:
| IBanga | Imichiza yoQiniso (Ubuninzi %) | ||||||||||
| C | Mn | Si | Mn | P | S | Cr | Ni | Mo | Cu | Ce | |
| 904L | ≤0.02 | ≤2.0 | ≤1.0 | ≤1.0 | ≤0.045 | ≤0.035 | 19-23 | 23-28 | 4.0-5.0 | 1.0-2.0 | 0.03-0.08 |
3. IiPropati zoomatshini:
| IBanga | IPropati yoomatshini | Ukuxinana | Indawo yokunyibilika | ||
| Amandla eSivuno (N/mm2)/(Mpa) | Amandla Okuqina (N/mm2)/(Mpa) | Ubude (%) | g/cm3 | ℃ | |
| 904 L | ≥300 | ≥650 | ≥35 | 8.0 | 1300-1390 |
4.904L inkcazelo:
1) Super austenitic steel stainless 904L (00Cr20Ni25Mo4.5Cu; UNS: N08904; EN: 1.4539) yi
i-alloy high austenitic stainless intsimbi enomxholo ophantsi wekhabhoni.
Inokumelana ne-corrosion elungileyo kwi-dilute sulfuric acid kwaye yenzelwe ngokukodwa imo engqongileyo
kunye neemeko zomhlwa ezinzima. Inomxholo wechromium ophezulu kunye nomxholo wenickel owaneleyo. Ukongezwa kobhedu kwenza kube nayo
ukuxhathisa okuqinileyo kwe-asidi, ngakumbi ukuxhathisa okuphezulu kwi-chloride interstitial corrosion kunye noxinzelelo lwe-corrosion cracking. Akukho lula ukuvela
iindawo zomhlwa kunye neentanda. Ukuxhathisa kwayo kwi-corrosion ye-pitting kungcono kancinane kunokwezinye iintsimbi. Inokuqhuba kakuhle kwaye
weldability, kwaye ingasetyenziselwa iinqanawa zoxinzelelo.
2) Isakhiwo se-Metallographic ye-904L yensimbi engenasici:
I-904L yinkqubo ye-austenitic ngokupheleleyo. Xa kuthelekiswa nentsimbi eqhelekileyo ye-austenitic engatyiwa kunye nomxholo ophezulu we-molybdenum,
I-904L inefuthe elibalulekileyo kwi-ferrite kwaye α Imvula yesigaba ayinabungozi.
a. Iimpawu zomzimba kunye noomatshini:
Ubuninzi: 8.0g/cm3. Amandla okuqina: σ b≥520Mpa. Ubude: δ ≥35%.
Ngenxa yokuba umxholo wekhabhoni we-904L uphantsi kakhulu (ubuninzi be-0.020%), akuyi kubakho imvula ye-carbide phantsi ngokubanzi
unyango ubushushu kunye neemeko welding. Oku kuphelisa umngcipheko we-intergranular corrosion emva kokunyanga ubushushu obuqhelekileyo kunye ne-welding.
Ngenxa yomxholo ophezulu we-chromium, i-nickel kunye ne-molybdenum kunye nokongezwa kobhedu, i-904L inokugqithiswa nasekunciphiseni.
iindawo ezingqongileyo, ezifana ne-asidi ye-sulfuric kunye ne-asidi ye-formic.
Umxholo ophezulu we-nickel wenza ukuba ube nesantya esisezantsi sokubola kwimeko esebenzayo. Kuluhlu loxinaniso lwe-0 ~ 98% ye-asidi ye-sulfuric ecocekileyo,
ubushushu bokusetyenziswa kwe-904L bunokuba phezulu ukuya kuma-40 ℃. Ukuxhatshazwa kwe-corrosion ye-asidi ye-phosphoric ecocekileyo kwi-concentration range ye-0 ~ 85% yi
kakuhle kakhulu.
Kwi-asidi ye-phosphoric ye-industrial eveliswa yinkqubo emanzi, ukungcola kunempembelelo enamandla kwi-corrosion resistance. Phakathi kwazo zonke iintlobo
ye-asidi ye-phosphoric, i-904L inokumelana ne-corrosion engcono kunentsimbi eqhelekileyo engenasici. Kwi-asidi ye-nitric ene-oxidizing eyomeleleyo, ukuxhathisa umhlwa kwe-904L
ingaphantsi kuneyentsimbi ephezulu edibeneyo ngaphandle kwe-molybdenum. Kwi-hydrochloric acid, ukusetyenziswa kwe-904L kunqunyelwe kwi-1-2% yoxinzelelo oluphantsi.
Kolu luhlu loxinaniso. Ukuxhatshazwa kwe-corrosion ye-904L ingcono kuneyentsimbi yesiqhelo engenasici. I-904L yentsimbi inokumelana okuphezulu
indawo yokubola.
Kwisisombululo sekloridi, ukuxhathisa kwe-corrosion kwi-crevice nakho kuhle kakhulu. Umxholo we-nickel ophezulu we-904L unciphisa izinga lokubola kwimibhobho kunye nemigodi.
Xa iqondo lobushushu lentsimbi eqhelekileyo ye-austenitic ingaphezulu kwe-60 ℃, inokuba novakalelo kuxinzelelo lwe-corrosion kwi-chloride etyebileyo.
okusingqongileyo.
Olu buthathaka lunokuncitshiswa ngokunyusa umxholo we-nickel wensimbi engenasici. Ngenxa yomxholo ophezulu we-nickel, i-904L inokumelana okuphezulu
i-stress corrosion cracking in chloride solution, concentrated hydroxide solution kunye ne-hydrogen sulfide etyebileyo.
Izinto ezixhasayo ze-welding: intonga ye-welding (E385-16/17), i-welding wire (ER385).
b. Imiqathango yokusetyenziswa kwe-904L:
1. Ukuqhubekeka
1.1 Ukusebenza kweWelding
Njengentsimbi eqhelekileyo engenasici, i-904L inokudityaniswa ngeendlela ezahlukeneyo zokuwelda. Eyona ndlela ixhaphakileyo i-welding manual i-arc welding okanye
ukuwelda kwerhasi enert ekhuselweyo.
I-electrode okanye i-wire metal isekelwe ekubunjweni kwesiseko sesinyithi kwaye inobunyulu obuphezulu. Umxholo we-molybdenum kufuneka ube
phezulu kunesiseko sesinyithi.
Ukushisa kwangaphambili akufuneki ngokubanzi phambi kwe-welding, kodwa ekusebenzeni kwangaphandle okubandayo, ukunqanda ukuxinana komphunga wamanzi, amalungu okanye akufutshane.
iindawo zinokufudunyezwa ngokulinganayo.
Ubushushu bendawo abuyi kuba ngaphezu kwe-100 ℃ ukunqanda ukuqokelelana kwekhabhoni kunye nokukhula kwe-intergranular. Amandla amancinci amancinci, aqhubekayo
kunye nesantya sewelding ekhawulezayo kufuneka yamkelwe ngexesha lewelding.
Ngokuqhelekileyo, unyango lokushisa alufunwa emva kwe-welding. Ukuba unyango lobushushu luyafuneka, kufuneka lufudunyezwe ukuya ku-11000 ～ 1150 ℃ kwaye lupholiswe ngokukhawuleza.
1.2 Ukusebenza koomatshini
Iimpawu zomatshini ze-904L zifana nezo zezinye i-austenitic stainless steels. Kukho ukuthambekela kokuncamathela kwesixhobo kunye nokusebenza nzima ngexesha lokucubungula.
Kufuneka kusetyenziswe izixhobo zeCarbide ezinehariki evumayo, kwaye ioli efakwe isalfurized kunye neklorini kufuneka isetyenziswe njengesipholisi sokusika. Isixhobo kunye nenkqubo iya kuba kwisiseko se
ukunciphisa ubunzima bomsebenzi. Isantya esicothayo sokusika kunye nesantya sokutya siya kuphetshwa ngexesha lokusika.
5. Imveliso enxulumeneyo:
6. Unyango olongezelelweyo
1) IsiPolish
2) Ukumakisha:
7 . Ukupakisha kunye nokuLayisha:
8. Isicelo:
I-904L isetyenziswa kule mimandla ilandelayo:
*Izixhobo zepetroleum kunye nepetrochemical, ezinje ngezixhobo ezisebenza kwipetrochemical equipment.
*Ugcino kunye nezixhobo zothutho ze-asidi ye-sulfuric, efana nokutshintshiselana kobushushu.
*Isixhobo se-flue gas desulfurization yeplanti yamandla sisetyenziswa ikakhulu kumzimba wokufunxa, i-flue, i-shutter, i-internals, inkqubo yokutshiza, njl.
*I-Scrubber kunye nefeni kwinkqubo yonyango ye-asidi ephilayo.
*Iplanti yokucoca amanzi olwandle, isitshintshi sobushushu bamanzi olwandle, izixhobo zeshishini lephepha, i-sulfuric acid kunye nezixhobo ze-nitric acid, ukwenza iasidi,
ishishini lamayeza kunye nezinye izixhobo zeekhemikhali, iinqanawa zoxinzelelo, izixhobo zokutya.
* Umzi-mveliso wamachiza: i-centrifuge, i-reactor, njl.
*Ukutya kwemifuno: imbiza yesosi yesosi, iwayini yokupheka, imbiza yetyuwa, izixhobo kunye nezinxibo.
*I-904L yintsimbi ehambelanayo yokuxutywa kwe-asidi yesulfuric eyomeleleyo enomhlwa.
Imifanekiso yeenkcukacha zemveliso:
IsiKhokelo seMveliso esiNxulumeneyo:
Siza kwenza zonke iinzame zokuba ngobalaseleyo kwaye zigqwese, kwaye sikhawulezise iindlela zethu zokuma ngelixa sikwinqanaba lamashishini akumgangatho ophezulu wamazwe ngamazwe kunye nobuchwepheshe obuphezulu ngeXabiso eliKhethekileyo loMbhobho weGesi yeNsimbi eNgatyibilikisiweyo-904L umbhobho wentsimbi ongenamthungo-Huaxin , Imveliso iya kubonelela kuwo wonke umhlaba, njenge: Portugal, Angola, Ethiopia, "Yenza abafazi bathandeke ngakumbi" yifilosofi yethu yokuthengisa. "Ukuba ngabaxumi abathembekileyo nabakhethiweyo" yinjongo yenkampani yethu. Besingqongqo kuwo wonke umsebenzi wethu. Samkela ngokunyanisekileyo abahlobo ukuba bathethe ngeshishini kwaye baqalise intsebenziswano. Sinethemba lokudibanisa izandla nabahlobo kumashishini ahlukeneyo ukwenza ikamva eliqaqambileyo.