Simbi isina nguraimhando yesimbi, simbi inoreva huwandu hwekabhoni (C) mune inotevera 2% inonzi simbi, inodarika 2% isimbi. Simbi mukuita kunyungudutsa kuwedzera chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) uye zvimwe zvinhu zvealloying kuvandudza kushanda kwesimbi kuitira kuti simbi ive. a corrosion resistance (kureva kuti, kwete ngura) tinowanzoti simbi isina tsvina.
Simbi isina tsvina mukunyungudutsa, nekuda kwekuwedzera kwealloying zvinhu zvemhando dzakasiyana, dzakasiyana siyana dzehuwandu hwakasiyana. Unhu hwayo hwakasiyanawo, kuitira kusiyanisa korona pane nhamba dzakasiyana dzesimbi.
Common classification yesimbi isina tsvina
1. 304 simbi isina tsvina
304 Stainless simbi ndiyo yakajairika mhando yesimbi, sesimbi inoshandiswa zvakanyanya, ine yakanaka corrosion resistance, heat resistance, low tembiricha simba uye mechanical properties; Kutsika, kukotama uye kumwe kupisa kwekuita kugona kwakanaka, hapana kupisa kurapwa kuomesa chiitiko (hapana magineti, wobva washandisa tembiricha -196 ℃ ~ 800 ℃).
Chiyero chekushandisa: zvinyorwa zvemumba (1, 2 tableware, makabati, mapaipi emukati, hita dzemvura, boilers, mabhavhu); Auto zvikamu (windshield wiper, muffler, mold zvigadzirwa); Zvishandiso zvekurapa, Zvishandiso zvekuvaka, Chemistry, Indasitiri yeChikafu, Zvekurima, Zvikamu zvengarava
2. 304L simbi isina tsvina (L yakaderera kabhoni)
Seyakaderera kabhoni 304 simbi, mune yakajairika mamiriro, ayo anodzivirira ngura uye 304 zvakangofanana, asi mushure mekunama kana kushushikana kubviswa, kuramba kwayo kune zviyo muganho ngura kugona kwakanakisa; Panyaya yekusarapwa kwekupisa, inogona zvakare kuchengetedza kunaka kwekusagadzikana, kushandiswa kwekushisa -196 ℃ ~ 800 ℃.
Kuwanda kwekushandisa: inoshandiswa mumaindasitiri emakemikari, marasha nepetroleum ane zvinodikanwa zvakakura zvekupokana negora remuganho wezviyo zvemichina yekunze, zvekuvakisa zvinodzivirira kupisa zvikamu uye zvikamu zvine matambudziko mukupisa kupisa.
3. 316 simbi isina tsvina
316 simbi isina tsvina nekuda kwekuwedzera kwe molybdenum, saka kushorwa kwayo kwekuora, kushomeka kwemuchadenga uye kusimba kwekushisa kwakanyanya kwakanyanya kunaka, inogona kushandiswa mumamiriro ezvinhu akaomarara; Basa rakanakisa kuomesa (kwete magineti).
Kuwanda kwekushandisa: midziyo yemvura yegungwa, makemikari, dhayi, kugadzira mapepa, oxalic acid, fetiraiza uye zvimwe zvigadzirwa zvekugadzira; Mapikicha, indasitiri yechikafu, zvivakwa zvemahombekombe, tambo, maCD tsvimbo, mabhaudhi, nzungu.
4. 316L isina tsvina (L yakaderera kabhoni)
Sezvo iyo yakaderera kabhoni yakatevedzana ye316 simbi, mukuwedzera kune imwecheteyo hunhu ne316 simbi, kushorwa kwayo kumuganhu wezviyo corrosion yakanakisa.
Chiyero chekushandisa: zvakakosha zvinodikanwa kuti urambe zviyo muganho corrosion zvigadzirwa.
Kuenzanisa Kwekuita
1. Kuumbwa kwemakemikari
Stainless simbi 316 uye 316L imolybdenum ine simbi isina tsvina. Iyo molybdenum inokwana 316L simbi isina tsvina yakakwira zvishoma pane iyo ye316 simbi isina tsvina. Nekuda kwe molybdenum musimbi, kushanda kwese kwesimbi kuri nani pane 310 uye 304 simbi isina tsvina. Pasi pemamiriro ekupisa kwepamusoro, apo huwandu hwe sulfuric acid huri pasi pe15% uye kupfuura 85%, 316 simbi isina tsvina ine zvakasiyana-siyana zvekushandisa. 316 simbi isina tsvina zvakare ine yakanaka uye chloride erosion zvivakwa, saka inowanzoshandiswa munzvimbo dzeMarine. 316L simbi isina tsvina ine yakanyanya kabhoni yemukati ye0.03. Inokodzera maapplication uko post-weld annealing isingagoneke uye uko yakanyanya kuomarara kuramba inodiwa.
2. CoKupoterera kwemvura
Kupokana nekuora kwe316 simbi isina tsvina kuri nani pane iyo ye304 simbi isina tsvina. Iyo ine yakanaka corrosion resistance mukugadzirwa kwe pulp uye bepa. Uye 316 simbi isina simbi zvakare inoshingirira kuMarine uye nehukasha hwekukukurwa kwemaindasitiri mumhepo. Kazhinji, 304 Stainless simbi uye 316 Stainless simbi mukupokana nemakemikari corrosion zvimiro zvemusiyano mudiki, asi mune mamwe chaiwo midhiya akasiyana.
304 simbi isina tsvina yakatanga kugadzirwa, iyo yainzwa kuPitting Corrosion mune zvimwe zviitiko. Kuwedzera imwe 2-3% molybdenum yakaderedza kunzwisiswa uku, zvichiita kuti 316. Mukuwedzera, izvi zvinowedzera molybdenum zvinogona kuderedza kuora kweimwe inopisa organic acids.
316 simbi isina tsvina yave kuda kuve iyo yakajairwa zvinhu muindasitiri yechikafu nechinwiwa. Nekuda kwekushomeka kwepasi rose kwe molybdenum uye nepamusoro nickel zviri mu316 Stainless simbi, 316 Stainless simbi inodhura kupfuura 304 Stainless simbi.
Pitting corrosion chiitiko chinonyanya kukonzerwa nekuora kwakaiswa pamusoro pesimbi isina tsvina, iyo inokonzerwa nekushaikwa kweokisijeni uye haigone kuumba danda rekudzivirira rechromium oxide. Kunyanya mumavharuvhu madiki, pane mukana mudiki wekuisa pane dhisiki, saka gomba hariwanzo.
Mumhando dzakasiyana dzemvura yepakati (mvura yakanyungudutswa, mvura yekunwa, mvura yerwizi, bhailer mvura, mvura yegungwa, nezvimwewo), 304 simbi isina tsvina uye 316 simbi isina tsvina inodzivirira yakangofanana, kunze kwekunge izvo zviri mukati me chloride ion zviri pakati. yakakwirira kwazvo, panguva ino 316 simbi isina tsvina inonyanya kukodzera. Muzviitiko zvakawanda, kupikisa kwehutu hwe 304 simbi isina tsvina uye 316 simbi isina tsvina haina kunyanya kusiyana, asi mune dzimwe nguva inogona kunge yakasiyana zvikuru, inoda kuongororwa pane imwe nyaya-ne-case basis.
3. Kudzivisa kupisa
316 simbi isina tsvina ine yakanaka oxidation kuramba mukushandiswa kusinga peri pazasi 1600 madhigirii uye kuenderera kushandiswa pazasi 1700 madhigirii. Muchikamu che800-1575 madhigirii, zviri nani kuti urege kuramba uchiita 316 simbi isina tsvina, asi muhutano hwekushisa kwekushandiswa kunoramba kuripo kwe316 simbi isina tsvina, simbi isina tsvina ine kunaka kwekupisa. 316L Stainless simbi ine zvirinani kuramba kune carbide kunaya kupfuura 316 Stainless simbi, iyo inogona kushandiswa mune iri pamusoro tembiricha renji.
4. Kurapa kwekupisa
Anealing inoitwa mutembiricha ye1850 kusvika 2050 madhigirii, ichiteverwa nekukasira kupinza uyezve kutonhora nekukurumidza. 316 simbi isina tsvina haigone kupiswa kuti iome.
5. Welding
316 simbi isina tsvina ine yakanaka weld kugona. Yese yakajairwa welding nzira dzinogona kushandiswa kugadzira. Zvinoenderana nechinangwa chewelding, iyo 316CB, 316L kana 309CB Stainless simbi yekurongedzera tsvimbo kana electrode inogona kushandiswa kugadzira. Kuti uwane iyo yakanakisa corrosion resistance, iyo welding chikamu che316 Stainless simbi inoda kuvharwa mushure mewelding. Post weld annealing haidiwe kana 316L simbi isina tsvina ikashandiswa.
Hikeloksimbi isina musono tubingshandisa 316L zvinhu. mamwe machubhu fittings uye mavharuvhu kazhinji kushandisa 316 zvinhu.
Nguva yekutumira: Feb-23-2022