Mukugadzirwa kwemaindasitiri, kune marudzi maviri ekurapa kwepasi: maitiro epanyama ekurapa uye maitiro ekurapa emakemikari. Blacking of stainless simbi simbi mamiriro anowanzo shandiswa pakurapwa kwemakemikari.
Nheyo: Kurapa kwemakemikari, denderedzwa remuti wenzombe inogadzirwa pane iyo simbi pamusoro, uye kurapwa kwemusoro kunowanikwa kuburikidza neiyo oxide firimu. Iyo nheyo inoshandiswa mune ino sosi yekurapa ndeyekugadzira iyo yefoni yehusiku pane iyo simbi pamusoro pechiitiko chinoenderana, chinogona kuparadzaniswa nesimbi kubva kunharaunda yekunze.
Nzira dzakajairika dzekutsiva simbi isiriyo iri seinotevera:
Dunhu 1: Acid Coloring Nzira
(1) Molten Dichromate nzira. Immerse stainless simbi zvikamu mune yakanyungudutswa sodium dichromate mhinduro uye inosimbisa zvakakwana kwemaminitsi makumi maviri kusvika 20-30 kuti iite dema dema firimu. Bvisa uye utonhore, wobva wageza nemvura.
(2) chromate yakasviba makemikari oxidation nzira. Maitiro ekuchinja kwemavara eiyi firimu denderedzwa anobva kune mwenje kusvika kwasviba. Kana ichichinja kubva kune yakajeka bhuruu kusvika pakadzika bhuruu (kana yakachena dema), nguva yenguva ingori 0.5-1 miniti. Kana iyo pfungwa yakakwana yarasikirwa, ichadzokera kuchiedza brown uye inogona chete kubviswa uye kuendeswa kwevhu.
2. Nzira yeVulcanization inogona kuwana firimu rakanakisa dema, rinoda kutorwa neiyo Aqua Regia isati yasvika oxidation
3. Alkaline oxidation nzira. Alkaline oxidation is a restation yakagadzirirwa ne sodium hydroxide, ine nguva yeminguva yemaminitsi gumi nemashanu. Iyo dema yerodeide firimu ine zvakanaka kupfeka kuramba uye hazvidi kuporesa kurapwa. Iyo munyu inosimuka nguva kazhinji iri pakati pe600-800 maawa. Inogona kuchengetedza kunaka kwakanyanya kwetsvina isina tsvina isina ngura.
Dunhu 2: Electrolytic oxidation nzira
Solution Kugadzirira: (20-40G / L Dichromate, 10-40G / L Manganese Sulfate, 10-20g / l Boric acid, 10-20g / L / Ph3G / L / Ph3G / L / Ph3G / L / Ph3G / PH / PH / PH / PH / PH3D Iyo firimu reruvara rakanyudzwa mune gumi muzana rcl solution pa25c kwemaminitsi mashanu, uye pakanga pasina shanduko yemavara kana kuti yakavezwa yeiyo firimu firimu, ichiratidza kupesana kwakanaka kweiyo firimu remufirimu. Mushure mekunge Electrolysis, 1cr17 Ferritic Stainless Steel yakasviba nekukurumidza, uye yakaomeswa kuti awane dema yefirimu ine yunifomu yeruvara, uye imwe nhanho, uye imwe nhanho yekuomerwa. Hunhu hwokuita kwakareruka, kukurumidza kwekukurumidza kumhanya, kurira kwakanaka, uye kwakanaka kupesana. Izvo zvakakodzera kuti ubatwe kurapa kurapwa kwakasiyana-siyana kwetsimbe uye saka zvine kukosha kwakakura.
Dunhu 3: QPQ Heat Kurapa Maitiro
Kuitiswa mumidziyo yakasarudzika, iyo firimu geny yakasimba uye ine simba rekupfeka zvakanaka; Nekudaro, nekuda kweizvozvo simbi isina tsvina, kunyanya austenitic isina simbi simbi, haina iyo imwechete yekudzivirira yekudzivirira sepashure peQPQ kurapwa kweQPQ. Icho chikonzero ndechekuti chromium yezvinyorwa pamusoro peAustenitic Stainless Simbi yakakuvadzwa. Nekuti mune yakapfuura maitiro eQPQ, iyo ndiyo nzira yekureva, kabhoni uye nitrogen yezvinyorwa zvichapinda, zvichikonzera kukuvara kwechimiro. Easy kuti ngura, munyu unopfira murombo unongova ngura mukati memaawa mashoma. Nekuda kwekushaya simba uku, kushandira kwayo kunogumira.
Kutumira Nguva: Aug-29-2024