Nzira yePasivate Stainless

Simbi isina simbi inozivikanwa zvakanyanya nekunaka kwayo kusaita ngura, simba, uye hupenyu hurefu. Asi kunyange iyo yepamusoro-giredhi-stainless simbi inogona kubatsirwa nepamusoro kurapwa kunonzipassivation. Kana uri kushamisikasei passivate Stainless, chinyorwa chino chichakufambisa kuburikidza nezvose zvaunoda kuziva-kubva pane chii chinonzi passivation, kuti nei zvichikosha, uye nhanho-nhanho mirairo yekuti ungazviita sei nemazvo.

Gwaro iri rinounzwa kwaurisakysteel, mutengesi akavimbika wepasi rose wezvigadzirwa zvesimbi isina tsvina, achipa rutsigiro rwehunyanzvi uye zvekutanga zvinhu kumaindasitiri pasi rese.

Chii chinonzi Passivation?

Passivationikemikari nzira inobvisa simbi yakasununguka uye zvimwe zvinosvibisa kubva pamusoro pesimbi isina tsvina uye inokurudzira kuumbwa kwechidimbu, chinodzivirira oxide layer. Iyi oxide layer-kunyanya chromium oxide-inoita senhoo pakurwisa ngura uye ngura.

Nepo Stainless simbi inogadzika iyi layer kana yaiswa mumhepo, iyo passivation process inoisimudzira nekudzikamisa, kunyanya mushure mekugadzira maitiro senge machining, welding, kugaya, kana kupisa kupisa.

Nei Passivation Yakakosha

Passivation haingori nhanho yekuzvisarudzira-inokosha mumaindasitiri mazhinji anoda mwero wepamusoro wehutsanana, kudzivirira ngura, uye kusimba.

Zvakanakira passivating Stainless simbi zvinosanganisira:

• Kuvandudzwa kwekusagadzikana kwecorrosion

• Kubviswa kwemasimbi akaiswa mukati

• Kubvisa kusvibiswa kwepamusoro

• Kuwedzera kutaridzika kwepamusoro

• Hupenyu hwesevhisi hwakawedzerwa munzvimbo dzakaoma

sakysteelinokurudzira passivation kunyanya kune zvinhu zvisina tsvina zvinoshandiswa mumakungwa, mishonga, chikafu-giredhi, uye maindasitiri ekugadzira makemikari.

Nderini Paunofanira Passivate Stainless Simbi?

Passivation inofanirwa kutariswa mushure meipi nzira inogona kufumura kana kusvibisa pamusoro pesimbi isina tsvina:

• Machining kana kucheka

• Welding kana brazing

• Pickling kana descaling

• Kukuya kana kukwenenzvera

• Kubata nekabhoni simbi maturusi

• Kuratidzwa kune zvinosvibisa kana nharaunda dzine chloride

Kana nhengo dzako dzisina tsvina dzichiratidza zviratidzo zvekushanduka kwemavara, kusvibiswa, kana kudzikira kwekusagadzikana, inguva yekufunga nezvekuita.

Ndeapi Stainless Simbi Magiredhi Anogona Kupfuura?

Mazhinji magiredhi esimbi asina tsvina anogona kupfuudzwa, asi mhedzisiro inogona kusiyana zvichienderana nealloy.

sakysteelinopa nhungamiro yekusarudza zvinhu kubatsira vatengi kusarudza magiredhi asina tsvina anofamba zvakanaka uye anoita zvakavimbika munzvimbo dzinoora.

Maitiro ekupfuura Stainless Simbi: Nhanho-ne-Nhanho Maitiro

Kune maviri makuru marudzi epassivation agents anoshandiswa muindasitiri:

• Nitric acid-yakavakirwamhinduro

• Citric acid-yakavakirwamhinduro (zvakawanda zvakatipoteredza)

Heino mhedziso yakajairika yeiyo passivation process:

Danho 1: Chenesa Surface

Kunyatsocheneswa kwakakosha kusati kwaitwa. Chero tsvina, mafuta, girizi, kana zvakasara zvinogona kukanganisa kuita kwemakemikari.

Nzira dzekuchenesa dzinosanganisira:

• Alkaline yekuchenesa vamiririri

• Degreasers

• Detergent solutions

• Ultrasonic kuchenesa (yezvikamu zvidiki)

Shamba nemvura yakachena woomesa kana zvichidiwa.

Danho 2: Descale kana Pickle (Kana Zvichidiwa)

Kana simbi isina tsvina iine chikero chinorema, weld oxides, kana discoloration, ita apicklingprocess before passivation.

Pickling inobvisa:

• Oxide layers

• Weld discoloration

• Kupisa tint

Pickling inowanzoitwa neasidhi yakasimba senge nitric-hydrofluoric acid kana pickling paste. Mushure mekutora, simbura zvakakwana usati waenderera kune passivation.

Nhanho 3: Isa iyo Passivation Solution

Nyura chikamu chakacheneswa mubhati yekugezera kana shandisa mhinduro nemaoko.

Nitric acid nzira:

• Kuisa pfungwa: 20-25% nitric acid

• Tembiricha: 50–70°C

• Nguva: 20-30 maminitsi

Citric acid nzira:

• Kuisa pfungwa: 4-10% citric acid

• Tembiricha: 40–60°C

• Nguva: 30-60 maminitsi

Shandisa nguva dzosemidziyo yepurasitiki kana yesimbi isina tsvinakudzivirira kusvibiswa panguva yekunyudzwa.

Danho 4: Sukurudza zvakakwana

Mushure menguva inodiwa mukugezesa passivation, simbura chikamu nedeionized kana distilled mvura. Mvura yemupombi inogona kusiya zvicherwa kana tsvina.

Ita shuwa kuti ese maasidhi asara abviswa zvachose.

Danho 5: Pukuta Surface

Pukuta uchishandisa mweya wakatsikirirwa kana machira akachena. Dzivisa kusvibiswa zvakare kubva kune kabhoni simbi maturusi kana mamvemve akasviba.

Pakushandisa kwakakosha (semuenzaniso, mishonga kana yekurapa), zvikamu zvinogona kuomeswa muimba yakachena kana kupfuura nemukamuri.

Sarudzo: Edza iyo Surface

Passivated zvikamu zvinogona kuedzwa uchishandisa:

• Copper sulfate test(ASTM A967): Inoona simbi yemahara

• High-humidity chamber test: Inofumura zvikamu kune dzakanyorova nharaunda kuti itarise corrosion resistance

• Kunyudzwa kwemvura kana bvunzo dzekupfapfaidza munyu: Kuti uwane yakawedzera corrosion performance evaluation

sakysteelinoshandisa ASTM A967 uye A380 zviyero kuratidza passivation mhando uye kuve nechokwadi chekuchengetedzwa kwakakwana kwekuora.

Safety Tips for Passivation

• Nguva dzose pfeka giya rekudzivirira: magirovhosi, magirazi, apron

• Shanda munzvimbo ine mhepo yakanaka

• Neutralize uye kurasa acids maererano nemitemo yemunharaunda

• Dzivisa kushandisa mabhurashi esimbi kana maturusi anogona kuunza zvakare tsvina

• Chengetedza zvidimbu zvakapfuura munzvimbo dzakachena, dzakaoma

Zvishandiso Zvinoda Passivated Stainless Simbi

Passivation yakakosha kune zvikamu zvinoshandiswa mu:

• Chikafu uye zvinwiwa kugadzira michina

• Michina yekurapa uye yemishonga

• Aerospace uye zvimiro zvendege

• Kemikari uye petrochemical zvirimwa

• Semiconductor kugadzira

• Marine uye offshore installation

sakysteelinopa passivation-yakagadzirira Stainless simbi zvigadzirwa kune ese ari pamusoro maapplication, achitsigirwa nekuteedzera kwezvinhu uye zvemhando zvitupa.

Dzimwe uye Dzinoenderana Surface Kurapwa

Pamusoro pekuda, mamwe mapurojekiti anogona kubatsirwa kubva:

• Electropolishing:Inobvisa denga rakatetepa rekupedzisira-yakachena uye yakatsetseka

• Mechanical polishing:Inowedzera kupenya kwepamusoro uye inobvisa kusvibiswa

• Pickling:Yakasimba kupfuura passivation, inoshandiswa kuchenesa welds uye kuyera

• Dziviriro machira:Epoxy, Teflon, kana ceramic coatings yekuwedzera kusimba

Bvunzasakysteelkuti uone yakanakisa post-yekugadzira kurapa kune yako Stainless application.

Mhedziso: Maitiro ekupfuura Stainless Simbi yeKunyanya Kuita

Passivation inzira yakakosha yekupedzisa iyo inokwidziridza kushora kwesimbi isina tsvina nekuchenesa makemikari uye kudzoreredza inodzivirira chromium oxide layer. Kunyangwe iwe uri kushanda muindasitiri yechikafu, kugadzira mishonga, kana kugadzirwa kwemugungwa, kupfuudza nhengo dzako dzesimbi dzinoona kuti dzinoshanda nepadzinogona napo munzvimbo dzakaoma.

Nekucheneswa kwakafanira, kunyudzwa, kusukurudza, uye kuyedzwa, simbi isina tsvina inogona kuwana kugona kwayo kwakazara mukusimba uye kuramba ngura. Uye nerutsigiro rwemutengesi akavimbika akafananasakysteel, unogona kuona kuti zvinhu zvako zvisina tsvina zvakagadziriswa nemazvo uye zvakagadzirira sevhisi.