Zvikonzero zvekuora kwesimbi isina tsvina

Zvikonzero zvekuora kwesimbi isina tsvina

1 Kuchengetera zvisina kunaka, kutakura uye kusimudza
Panguva yekuchengetera, kutakura uye kusimudza, simbi isina simbi grating inokora kana ikasangana nemakwara kubva kuzvinhu zvakaoma, kusangana neakasiyana simbi, guruva, mafuta, ngura uye kumwe kusvibiswa. Kusanganisa simbi isina tsvina nezvimwe zvinhu uye midziyo isina kufanira yekuchengetedza inogona kusvibisa zviri nyore pamusoro pesimbi isina tsvina uye kukonzera kemikari ngura. Kushandisa zvisina kunaka maturusi ekufambisa uye zvigadziriso zvinogona kukonzera mapundu uye kukwenya pamusoro pesimbi isina tsvina, nekudaro ichiparadza pamusoro chromium firimu resimbi isina tsvina uye kugadzira electrochemical corrosion. Kusashandisa zvisina kunaka kwehoist uye chucks uye kusashanda zvakanaka kwemaitiro kunogonawo kukonzera pamusoro pechromium firimu resimbi isina tsvina kuparadzwa, zvichikonzera kupera kwe electrochemical.
2 Raw material kuburutsa nekugadzira
Simbi dzakakungurutswa dzeplate zvinhu zvinoda kugadziriswa kuita simbi yakati sandara kuti ishandiswe nenzira yekuvhura nekucheka. Mukugadzirisa kuri pamusoro, iyo chromium-rich oxide passivation firimu iri pamusoro pesimbi isina simbi grating inoparadzwa nekuda kwekucheka, kusungirira, kupisa, kuburitsa mold, kutonhora kushanda kuoma, nezvimwewo, zvichikonzera kuparara kweelectrochemical. Mumamiriro ezvinhu akajairwa, nzvimbo yakafumurwa yesimbi substrate mushure mekunge firimu rekupfuura raparadzwa richaita pamwe nemhepo kuzvigadzirisa, kugadzirazve chromium-rich oxide passivation firimu, uye ramba uchidzivirira substrate. Zvisinei, kana pamusoro pesimbi isina tsvina isina kuchena, inosimudzira kuparara kwesimbi isina tsvina. Kucheka uye kupisa panguva yekucheka uye kusungirira, kupisa, mold extrusion, kutonhora kushanda kuomarara panguva yekugadzira kunotungamira kune kusaenzana shanduko muchimiro uye kukonzera electrochemical corrosion.
3 Kuisa kupisa
Munguva yekugadzira simbi isina simbi grating, kana tembiricha yasvika 500 ~ 800 ℃, iyo chromium carbide musimbi isina tsvina inonaya ichitevedza muganho wezviyo, uye intergranular corrosion ichaitika pedyo nemuganho wezviyo nekuda kwekudzikira kwemukati chromium. Thermal conductivity ye austenitic Stainless simbi inenge 1/3 yeiyo ye carbon steel. Kupisa kunogadzirwa panguva yewelding hakugone kuparadzirwa nekukurumidza, uye huwandu hukuru hwekupisa hunounganidzwa munzvimbo yeweld kuti iwedzere tembiricha, zvichiita kuti intergranular corrosion ye Stainless simbi weld uye nzvimbo dzakapoteredza. Mukuwedzera, iyo yepamusoro oxide layer yakakuvadzwa, izvo zviri nyore kukonzera electrochemical corrosion. Nokudaro, nzvimbo ye weld inowanzoitika kune corrosion. Mushure mekuvhiyiwa kwewelding kwapera, zvinowanzofanira kukwenenzvera chitarisiko cheweld kubvisa madota matema, spatter, welding slag uye mamwe midhiya anowanzoita ngura, uye pickling uye passivation kurapwa kunoitwa pane yakafumurwa arc weld.
4. Kusarudzwa kwakashata kwezvishandiso uye maitiro ekuita panguva yekugadzira
Mukuita chaiko kwekushanda, kusarudzwa kwakashata kwemamwe maturusi uye maitiro ekuita anogona zvakare kutungamirira mukuora. Semuenzaniso, kubviswa kusina kukwana kwe passivation panguva ye weld passivation kunogona kutungamirira kumakemikari ekuora. Zvishandiso zvisina kunaka zvinosarudzwa pakuchenesa slag uye spatter mushure mekuputika, zvichiita kuti kuchenesa kusina kukwana kana kukanganisa kwezvinhu zvemubereki. Kukuya kusina kunaka kwemavara e-oxidation kunoparadza pamusoro pe oxide layer kana kunamatira kwezvinhu zvinoputika, izvo zvinogona kutungamirira kune electrochemical corrosion.