Mukugadzirwa kwemaindasitiri, kune marudzi maviri ekurapa kwepamusoro: maitiro ekurapa kwemuviri uye maitiro ekurapa kwemakemikari. Kusviba kwesimbi isina tsvina inzira inowanzoshandiswa mukurapa kwemakemikari.
Nheyo: Nekurapa kwemakemikari, dhizaini yeoxyde firimu inogadzirwa pamusoro pesimbi, uye kurapwa kwepamusoro kunowanikwa kuburikidza neiyo oxide firimu. Nheyo inoshandiswa mune iyi nzira yekurapa kwepamusoro ndeyekugadzira firimu reoxyde pamusoro pesimbi pasi pechiito chemidziyo inoenderana, iyo inogona kutsaura simbi kubva kune yakananga kusangana nekunze kwezvakatipoteredza.
Nzira dzakajairika dzekuita blackening steel stainless ndedzinotevera:
Chikamu 1: Acid coloring nzira
(1) Molten dichromate method. Nyura zvikamu zvesimbi zvisina tsvina mune yakanyungudutswa yesodium dichromate mhinduro uye fambisa zvakanaka kwemaminetsi makumi maviri kusvika makumi matatu kugadzira firimu reblack oxide. Bvisa uye utonhorere, wozogeza nemvura.
(2) Chromate black chemical oxidation nzira. Maitiro ekushanduka kwemavara eiyi firimu layer anobva kuchiedza kuenda kurima. Kana ichichinja kubva pachiedza chebhuruu kusvika pakadzika bhuruu (kana dema dema), nguva yenguva inongova 0.5-1 miniti. Kana iyi poindi yakakwana ikapotswa, inodzokera kune yakatsvuka uye inogona chete kubviswa nekuiswazve ruvara.
2. Iyo vulcanization nzira inogona kuwana yakanaka dema firimu, inoda kunyururwa neaqua regia isati yaitwa oxidation.
3. Alkaline oxidation nzira. Alkaline oxidation ndiyo mhinduro yakagadzirwa ne sodium hydroxide, ine oxidation nguva ye10-15 maminetsi. Iyo dema oxide firimu ine yakanaka kupfeka kuramba uye haidi kurapa kurapwa. Nguva yekupfapfaidza munyu kazhinji iri pakati pe600-800 maawa. Inogona kuchengetedza yakanakisa mhando yesimbi isina ngura.
Chikamu 2: Electrolytic oxidation nzira
Kugadzirira kugadzirisa: (20-40g / L dichromate, 10-40g / L manganese sulfate, 10-20g / L boric acid, 10-20g / L/PH3-4). Iyo firimu yemavara yakanyoroveswa mu10% HCl mhinduro pa 25C kwemaminitsi mashanu, uye pakanga pasina kuchinja kwemavara kana kusvuura kwemukati wemufirimu wemukati, zvichiratidza kumira kwakanaka kwekuora kwefirimu. Mushure me electrolysis, 1Cr17 ferritic simbi isina tsvina inosviba nekukasira, yobva yaomeswa kuti iwane dema oxide firimu rine ruvara rwakafanana, elasticity, uye imwe nhanho yekuoma. Hunhu hwakareruka maitiro, kukurumidza kusviba kumhanya, kunaka kwemavara maitiro, uye yakanaka corrosion kuramba. Inokodzera kusvibiswa kwepamusoro kurapwa kwesimbi dzakasiyana-siyana dzisina tsvina uye naizvozvo ine zvakakosha zvinoshanda.
Chikamu 3: QPQ Heat Treatment Method
Inoitwa mumidziyo yakasarudzika, iyo firimu layer yakasimba uye ine yakanaka kupfeka kuramba; Nekudaro, nekuda kwekuti simbi isina simbi, kunyanya austenitic simbi isina tsvina, haina simba rakafanana rekudzivirira ngura sepakutanga mushure mekurapwa kweQPQ. Chikonzero ndechekuti chromium iri pamusoro peaustenitic simbi isina tsvina yakakuvadzwa. Nekuti mune yakapfuura maitiro eQPQ, inova iyo nitriding process, kabhoni uye nitrogen zvemukati zvichapinda, zvichikonzera kukuvadzwa kwechimiro chepamusoro. Zviri nyore kuita ngura, munyu pfapfaidzo isina kunaka inongoita ngura mukati memaawa mashoma. Pamusana pekushaya simba uku, kushanda kwayo kune zvishoma.
Nguva yekutumira: Aug-29-2024