TLHALOSO
Stainless steel 317L ke kereiti ea molybdenum e nang le khabone e tlase, hammoho le litlatsetso tsa chromium, nickel le molybdenum. Sena se fana ka khanyetso e ntle ea kutu le ho eketseha ha khanyetso ho litlhaselo tsa lik'hemik'hale tse tsoang ho acetic, tartaric, formic, citric, le sulfuric acid. Li-tubes / liphaephe tsa 317L li fana ka sekhahla se phahameng, le ho hana ho khothaletsoa ha li cheselitsoe, ka lebaka la khabone e tlase. Melemo e ekelitsoeng e kenyelletsa khatello ea maikutlo ho thibela ho phatloha, le matla a tsitsitseng mochesong o phahameng. Liphaephe tsa tšepe tsa Kereiti ea 317l ha li na makenete maemong a annealed. Leha ho le joalo, magnetism e nyane ea post-welding e ka bonoa.
317L TLHOKOMELISO EA PEPI EA TŠEPE
Li-tubes tsa tšepe tse 317L tse fanoeng ke Arch City Steel & Alloy li na le thepa e latelang:
Corrosion Resistance:
- E bonts'a khanyetso e ikhethang ea kutu libakeng tse fapaneng, haholo tikolohong ea acidic chloride le mefuta e mengata ea lik'hemik'hale.
- Ho hanyetsa kutu e ntle haholo lits'ebetsong moo ho hlokehang tšilafalo e fokolang
- 317L peipi ea tšepe e sa hloekang e nang le khabone e tlase e fana ka khanyetso e ntle khahlanong le kutu ea intergranular.
- Tloaelo ea tšepe ea ho cheka ha e kopana le chloride, bromides, phosphorus acid le iodides e ea hatelloa.
Ho hanyetsa Mocheso:
- Ho hanyetsa ho hotle ho oxidation ka lebaka la litaba tsa chromium-nickel-molybdenum.
- E bonts'a sekhahla se tlase sa ho eketsa mocheso ho fihlela ho 1600-1650 ° F (871-899 ° C), libakeng tse tloaelehileng tsa atmosphere.
Litšobotsi tsa Welding:
- Ntle le oxyacetylene welding, ka katleho welded ke fusion eohle e tloaelehileng le mekhoa ea ho hanyetsa.
- Litšepe tse nang le nickel-base le chromium e lekaneng le litaba tsa molybdenum li lokela ho sebelisoa ho tjheseletsa tšepe ea Mofuta oa 317L. Sena se thusa ho matlafatsa khanyetso ea kutu ea sehlahisoa se cheselitsoeng. AWS E317L/ER317L kapa austenitic, tšepe e tlase ea khabone e nang le molybdenum e phahameng ho feta grade 317L le eona e ka sebelisoa.
Boikemisetso:
- Ho sebetsa ka lebelo le tlase ka lijo tse sa khaotseng ho thusa ho fokotsa tšekamelo ea liphaephe tsa grade 317L ho thatafala.
- Liphaephe tsa tšepe tse sa hloekang tsa Kereiti ea 317L li matla ho feta 304 ha li na letheba 'me li itšetlehile ka chip e telele le e likhoele ha e etsoa mochini. Ka hona, ho khothalletsoa ho sebelisa li-chip breakers.
Lisebelisoa:
Li-tubes tsa tšepe tse sa hloekang tsa Kereiti ea 317L hangata li sebelisoa bakeng sa ho sebetsana le joala, li-dyestuffs tsa asiti, litharollo tsa bleaching, motsoako oa acetylating le nitrate, joalo-joalo. Lits'ebetso tse ling tse ikhethileng tsa liphaephe le liphaephe tsa grade 317L li kenyelletsa:
- Lisebelisoa tsa ho lokisa lik'hemik'hale le petrochemical
- Lisebelisoa tsa ho tšoara pampiri le makhasi
- Lisebelisoa tsa ho lokisa lijo
- Li-condenser liteisheneng tsa nyutlelie le tsa mesaletsa ea lintho tsa khale
- Lisebelisoa tsa masela
LITABA TSA K'hemik'hale:
| Sebopeho sa Lik'hemik'hale se Tloaelehileng % (boholo ba boleng, ntle le ha bo boletsoe) | |||||||||
| Kereiti | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| 317L | 0.035 max | 2.0 max | 0.75 max | 0.04 max | 0.03 max | mets: 18.0 boholo:20.0 | mets: 3 boholo: 4 | mets: 11.0 boholo: 15.0 | tekatekano |
Nako ea poso: Oct-09-2020