Simbi isina nguraImhando yesimbi, simbi inoreva huwandu hwekabhoni (C) mu2% inotevera inonzi simbi, inopfuura 2% isimbi. Simbi iri mukuita kwekunyungudutsa inowedzera chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) nezvimwe zvinhu zve alloying kuti ivandudze mashandiro esimbi kuitira kuti simbi irambe ichidzivirira ngura (kureva kuti, kwete ngura) ndizvo zvatinowanzoti simbi isina ngura.
Simbi isina ngura panguva yekunyungudutsa, nekuda kwekuwedzera zvinhu zvemhando dzakasiyana, mhando dzakasiyana dzehuwandu hwakasiyana. Hunhu hwayo hwakasiyanawo, kuitira kusiyanisa korona panhamba dzakasiyana dzesimbi.
Kupatsanurwa kwakajairika kwesimbi isina ngura
1. 304 simbi isingasvibi
Simbi isingatsvi 304 ndiyo inonyanya kushandiswa, sesimbi inoshandiswa zvakanyanya, ine ngura yakanaka, inodzivirira kupisa, simba rakaderera uye hunhu hwemakanika; Kutsika, kukotama uye kumwe kugona kwekupisa kwakanaka, hapana chiitiko chekuomesa kurapwa nekupisa (hapana magineti, wobva washandisa tembiricha -196℃ ~ 800℃).
Mashandisirwo azvo: zvinhu zvemumba (1, 2 tafura, makabati, mapaipi emukati, maheater emvura, mabhoyira, mabhavhu); Zvikamu zvemota (wiper yegirazi remhepo, muffler, zvigadzirwa zvemold); Midziyo yekurapa, Zvishandiso zvekuvaka, Kemikari, Indasitiri yezvekudya, Kurima, Zvikamu zveShip
2. Simbi isingatsvi 304L (L haina kabhoni yakawanda)
Sesimbi ine kabhoni 304 yakaderera, mune zvese, inodzivirira ngura uye 304 yakafanana, asi mushure mekunamira kana kubvisa kushushikana, inodzivirira ngura yemuganhu wezviyo zvakanaka; Kana isina kurapwa nekupisa, inogonawo kuchengetedza ngura yakanaka, ichishandisa tembiricha -196℃ ~ 800℃.
Mashandisirwo azvo: anoshandiswa mumaindasitiri emakemikari, marasha nepeturu ane zvinodiwa zvakanyanya zvekusabatwa nengura yemichina yekunze, zvinhu zvekuvaka zvinodzivirira kupisa uye zvikamu zvinoomerwa nekupisa.
3. 316 simbi isingasvibi
316 simbi isingasvibi nekuda kwekuwedzera kwemolybdenum, saka inodzivirira ngura, inodzivirira ngura mumhepo uye simba rayo rekupisa zvakanyanya, inogona kushandiswa mumamiriro ezvinhu akaoma; Kuomesa basa zvakanaka (kusina magineti).
Mashandisirwo azvo: michina yemumvura yegungwa, makemikari, zvinhu zvekudhaya, kugadzira mapepa, oxalic acid, fetereza nezvimwe zvishandiso zvekugadzira; Mifananidzo, indasitiri yezvekudya, zvivakwa zvemahombekombe, tambo, maCD rods, mabhaudhi, nzungu.
4. 316L isina ngura (L haina kabhoni yakawanda)
Sesimbi ine kabhoni shoma ye316, pamusoro pehunhu hwakafanana nesimbi ye316, kuramba kwayo ngura yemuganhu wezviyo kwakanaka kwazvo.
Mashandisirwo azvo: zvinodiwa zvakakosha kuti zvisapararire kugadzirwa kwezviyo.
Kuenzanisa Kwekushanda
1. Kuumbwa kwemakemikari
Simbi dzisina ngura 316 ne316L isimbi dzisina ngura dzemolybdenum. Huremu hwesimbi dzisina ngura dze316L hwakakwira zvishoma pane hwesimbi dzisina ngura dze316. Nekuda kwemolybdenum iri musimbi, mashandiro esimbi ese ari nani pane simbi dzisina ngura dze310 ne304. Mumamiriro ekupisa kwakanyanya, kana huwandu hwesulfuric acid huri pasi pe15% uye hunopfuura 85%, simbi dzisina ngura dze316 dzine mashandisirwo akasiyana-siyana. Simbi isina ngura ye316 inewo hunhu hwakanaka uye hwekloridhi, saka inowanzoshandiswa munzvimbo dzeMarine. Simbi isina ngura ye316L ine huwandu hwekabhoni hwe0.03. Yakakodzera kushandiswa uko post-weld annealing isingagoneke uye uko kunodiwa kudzivirira ngura zvakanyanya.
2. Cokuramba kukwira kwemvura
Kuramba ngura kwesimbi isingatsvigiri 316 kuri nani pane kwesimbi isingatsvigiri 304. Ine kuramba ngura kwakanaka mukugadzirwa kwepulp nepepa. Uye simbi isingatsvigiri 316 inodzivirirawo kukurwa kwemhepo yegungwa uye yeindasitiri. Kazhinji, simbi isingatsvigiri 304 nesimbi isingatsvigiri 316 mukudzivirira ngura kwemakemikari hazvina musiyano mukuru, asi mune zvimwe zvinhu zvakasiyana.
Simbi isina ngura ye304 yakagadzirwa pakutanga, iyo yainzwa ngura yePitting Corrosion mune dzimwe nguva. Kuwedzera imwe 2-3% molybdenum kwakaderedza ngura iyi, zvichikonzera 316. Pamusoro pezvo, iyi molybdenum yakawedzerwa inogona kuderedza ngura yemamwe maasidhi anopisa eorganic.
Simbi isina ngura ye316 yava kuda kuva chinhu chakajairika muindasitiri yezvikafu nezvinwiwa. Nekuda kwekushomeka kwemolybdenum pasi rose uye huwandu hwakawanda hwenickel musimbi isina ngura ye316, simbi isina ngura ye316 inodhura kupfuura simbi isina ngura ye304.
Kuora kwegomba kunokonzerwa nengura inoiswa pamusoro pesimbi isingatsvi, iyo inokonzerwa nekushaikwa kweokisijeni uye haigone kuumba chromium oxide inodzivirira. Kunyanya mumavharuvhu madiki, mukana wekuti gomba ribude padhisiki hauwanzoitiki, saka gomba hariwanzoitiki.
Mumhando dzakasiyana dzemvura (mvura yakanyungudutswa, mvura yekunwa, mvura yerwizi, mvura yebhoyila, mvura yegungwa, nezvimwewo), 304 stainless steel ne316 stainless steel kuramba ngura kwakafanana, kunze kwekunge huwandu hwechloride ion mumhepo hwakakwirira kwazvo, panguva ino 316 stainless steel ndiyo yakakodzera. Kazhinji, kuramba ngura kwe304 stainless steel ne316 stainless steel hakuna kusiyana zvakanyanya, asi mune dzimwe nguva zvinogona kusiyana zvakanyanya, zvinoda kuongororwa zvichienderana nemamiriro ezvinhu.
3. Kudzivirira kupisa
Simbi isingatsvi 316 ine simba rekudzivirira kupisa kana ikashandiswa zvisina kugadzikana pasi pe1600 degrees uye inoramba ichishandiswa pasi pe1700 degrees. Padanho re800-1575 degrees, zvakanaka kuti isashandise 316 stainless steel nguva dzose, asi padanho rekupisa re316 stainless steel nguva dzose, 316 stainless steel ine simba rekudzivirira kupisa zvakanaka. 316L stainless steel ine simba rekudzivirira kupisa kwecarbide zviri nani pane 316 stainless steel, iyo inogona kushandiswa padanho rekupisa riri pamusoro apa.
4. Kurapa kupisa
Kuisa simbi muchina kunoitwa patembiricha iri pakati pemadhigirii 1850 kusvika 2050, zvichiteverwa nekuisa simbi muchina nekukurumidza uye kutonhora nekukurumidza. Simbi isingatsvedzi ye316 haigone kupiswa zvakanyanya kuti iome.
5. Kubatanidza
Simbi isingatsvigiri 316 ine kugona kwakanaka kwekupinza. Nzira dzese dzekupinza dzinogona kushandiswa pakupinza. Zvichienderana nechinangwa chekupinza, tsvimbo yekurongedza simbi isingatsvigiri 316CB, 316L kana 309CB inogona kushandiswa pakupinza. Kuti uwane kudzivirira kwakanakisa kwengura, chikamu chekupinza chesimbi isingatsvigiri 316 chinofanira kunamirwa mushure mekupinza. Kupinza kwesimbi mushure mekupinza hakudiwi kana simbi isingatsvigiri 316L ikashandiswa.
Hikeloksimbi isina ngura isina musonoshandisa zvinhu zve316L. Zvimwe zvinhu zvinosungirirwa mumachubhu nemavharuvhu zvinowanzoshandisa zvinhu zve316.
Nguva yekutumira: Kukadzi-23-2022