Motsoako oa 28ke alloy multi-purpose austenitic stainless steel for service maemong a senyang haholo. Kereiti e tšoauoa ka:
- Ho hanyetsa kutu e phahameng haholo ho li-acid tse matla
- Khanyetso e ntle haholo ea khatello ea khatello ea maikutlo (SCC) le corrosion ea intergranular libakeng tse fapaneng.
- Ho hanyetsana ho hoholo ha likoti le ho bola ha maphao
- Weldability e ntle
Litekanyetso
- UNS: N08028
- ISO: 4563-080-28-I
- Nomoro ea EN: 1.4563
- EN Lebitso: X 1 NiCrMoCu 31-27-4
- W.Nr.: 1.4563
- DIN: X 1 NiCrMoCuN 31 27 4
- SS: 2584
- TLHOKOMELISO: Z1NCDU31-27-03
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | N |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.020 | ≤0.7 | ≤2.0 | ≤0.020 | ≤0.010 | 27 | 31 | 3.5 | 1.0 | ≤0.1 |
Ka lebaka la thepa ea eona e ikhethang ea kutu, Sanicro® 28 e ka sebelisoa libakeng tse fapaneng haholo. Ho thathamisitsoe ka tlase ke mehlala e 'maloa ea lits'ebetso tseo alloy ena e loketseng haholo ho tsona.
Phosphoric acid
Kajeno,Alloy 28 kapaSanicro 28 ke thepa ea tšepe e sebelisoang haholo ho fetisisa bakeng sa li-evaporator tubes ha ho etsoa asiti ea phosphoric ka mokhoa oa "metsi". Liyuniti tse 'maloa li se li le tšebeletsong ka lilemo tse fetang 10. Lisebelisoa tsa mocheso oa graphite, tse nketsoeng sebaka ke Sanicro 28, hangata li ne li e-na le mathata a mangata ka li-tubes tse robehileng le tahlehelo ea tlhahiso.
Asiti ea sulfuric
Alloy 28 kapaSanicro 28 ke sesebediswa se loketseng bakeng sa diphaepe le di-exchangers tsa mocheso, haholoholo maemong a pakeng tsa 40 le 70% ya asiti e deaerated le ho feta 85%.Alloy 28 kapaSanicro 28 e na le khanyetso e batlang e tšoana le ea Alloy C ka acid e concentrated (98% H2SO4).
Oli le khase
Alloy 28 kapaSanicro 28 e sebelisetsoa ho etsa li-tubing, casing le liner lilibeng tse tebileng tsa khase e bolila. Boitsebiso bo boetse bo khothaletsoa bakeng sa liliba tsa oli tse nang le tikoloho e senyang. Bakeng sa merero ena, li-tubes li fanoa ka serame se kolobisitsoeng ka matla a phahameng. Boemong bo khutsitseng,Alloy 28 kapaSanicro 28 e boetse e sebelisoa e le liphaephe bakeng sa ho tsamaisa oli le khase e senyang le bakeng sa li-heaters tsa mocheso litsing tsa kalafo. Li-wireline tsa Sanicro 28 li sebelisetsoa ho theola lisebelisoa le lisebelisoa tsa ho laola lilibeng tse tebileng tsa oli le khase.
Mecha ea litaba e nang le fluoride
Likhase tse tsoang ho fluoride li ka hlaha nakong ea ha ho etsoa asiti ea phosphoric le menontsha e tsoakiloeng. Li-off-gase tsena li tlameha ho lahloa ka mabaka a tikoloho. Sanicro 28 e loketse morero ona. Liteko li bonts'itse hore e molemo ho feta limaraka tse holimo tsa CrNiMo bakeng sa ho khutlisa gypsum e nang le fluoride.
Lisebelisoa tsa nyutlelie
Ka lebaka la khanyetso ea eona e phahameng ea SCC, pitting le crevice corrosion, Sanicro 28 e khethiloe bakeng sa lisebelisoa tsa mocheso lifemeng tsa matla a nyutlelie.
Metsi a pholileng a metsi a leoatle le a nang le chloride
Ho hanyetsa ha eona ho hoholo ha likoti le maphao ho etsa hore Sanicro 28 e be thepa e loketseng haholo bakeng sa liphaephe tse tsamaisang metsi a leoatle le licheso tse pholileng tsa metsi a leoatle. Sena se tiisoa ke phihlelo e sebetsang.
Sanicro 28 e nkile sebaka sa li-alloys tsa nickel, CuNi, li-tubes tsa bimetallic le li-tubes tse koahetsoeng ka carbon steel, tse ileng tsa hlōleha ka lebaka la ho bola. Ts'ebetso ea Sanicro 28 e bile e ntle haholo.
Ka har'a licheso tsa mocheso tse pholileng ka metsi a leoatle le li-cheso tse sebetsang ka metsi a pholileng a nang le chloride, Sanicro 28 e fana ka khanyetso e phahameng ea kutu ho metsi le sebaka se pholileng.
Ha semela se pholileng ka metsi a leoatle se koetsoe, ha ho hlokahale ho hula tsamaiso ea liphaephe kapa ho hlatsoa ka metsi a hloekileng, ha feela nako ea ho koala e le khutšoanyane ho feta khoeli e le 'ngoe le mocheso oa metsi o ka tlaase ho 30°C (85°F) .
The duplex stainless steel 2507 e hanyetsa ho feta Sanicro 28 metsing a leoatle.
Nako ea poso: Dec-24-2019