Chii chinonzi Pickling uye Passivation yeStainless Simbi

Stainless simbi inozivikanwa nekusaita ngura, kusimba, uye kupera kwayo kwakachena. Nekudaro, panguva yekugadzira maitiro senge welding, kucheka, uye kugadzira, nzvimbo yayo inogona kukanganisika nechiyero, okisidhi, kana kusvibiswa kwesimbi. Kudzoreredza uye kuwedzera corrosion kuramba, maviri akakosha mushure mekurapa anoshandiswa:picklinguyepassivation.

Muchikamu chino, tichaongorora kuti maitiro aya anosanganisirei, nei akakosha, uye kuti akasiyana sei. Kunyangwe iwe uri mukuvaka, kugadzira chikafu, kana petrochemical kugadzira, kunzwisisa pickling uye passivation kwakakosha kuti uve nechokwadi chekushanda kwenguva refu kwesimbi isina tsvina.

Chii chinonzi Pickling?

Pickling chirongwa chemakemikari chinobvisazvinosvibisa pamusorosenge weld scale, ngura, kupisa tint, uye okisidhi kubva pamusoro pesimbi isina tsvina. Kuita uku kunowanzo shandisa mhinduro ye nitric acid uye hydrofluoric acid kunyungudutsa nemakemikari tsvina iyo mechanical yekuchenesa isingagoni kubvisa.

Mashandiro anoita Pickling:

• Simbi isina tsvina inobatwa neacid solution (kazhinji nekunyudzwa, kubhurasha, kana kupfapfaidza)

• Mushonga unopindirana nemaokisi uye chiyero pamusoro pesimbi

• Izvi zvinosvibisa zvinonyungudutswa uye zvosukurudzwa, zvichiratidza nzvimbo yakachena, isina simbi isina tsvina

Pickling yakakosha kana simbi isina tsvina yakabikwa-yakapiswa kana kushiswa, sezvo kupisa kuchigadzira rima oxide layer iyo inogona kukanganisa kusimba kwekuora kana ikasagadziriswa.

Chii chinonzi Passivation?

Passivation inzira yakasiyana yemakemikari inowedzera iyoNatural oxide layerpamusoro pesimbi isina tsvina. Nepo pickling ichibvisa zvinosvibisa, passivation inovaka chromium-rich passive firimu inodzivirira zvinhu kubva mukuora.

Iyo Passivation Inoshanda sei:

• Iyo yakacheneswa simbi isina tsvina inobatwa nenitric asidhi kana citric asidhimhinduro

• Iyo asidhi inobvisa simbi yemahara uye zvimwe zvimedu zvekunze kubva pamusoro

• Mutete, yunifomuchromium oxide layerinoumba yega pamberi pemhepo kana oxygen

Passivation haibvisi chiyero kana oxide layer. Nokudaro, inowanzoitwamushure mekudyakupa yakanyanya kuomarara kuramba.

Misiyano Yakakosha Pakati pePickling uye Passivation

Kunyangwe maitiro ese ari maviri anosanganisira kurapwa kweasidhi, anoshanda zvakasiyana:

• Picklinginobvisa oxides uye chiyero

• Passivationinobvisa simbi yemahara uye inosimudzira inodzivirira oxide layer

• Pickling inowedzera hutsinye uye inosanganisira hydrofluoric acid

• Passivation inyoro uye inowanzoshandisa nitric kana citric acid

• Pickling inoshandura chitarisiko chepamusoro; passivation haina kunyanya kuchinja kupedzisa

Kune yakakwirira-inoshanda Stainless simbi zvikamu, ese ari maviri maitiro anowanzo shandiswa mukutevedzana kuti ave nechokwadi chenzvimbo yakachena uye isingadziviriri.

Idzi Matanho Akakodzera Rini?

Pickling uye passivation inokurudzirwa mune zvinotevera zviitiko:

• Mushureweldingkubvisa kupisa tint uye oxide discoloration

• Kuteverakugadzira kana kugaya, iyo inogona kuunza kusvibiswa kwesimbi

• Mushurekupisa kurapwa, uko chiyero uye kushanduka kwemavara kunogona kuumba

• Forcleanroom uye hutsanana applications, uko kuchena kwepamusoro kunokosha

• In nzvimbo dzemugungwa kana makemikari, uko kushorwa kunofanirwa kuvandudzwa

Nokushandisasakysteel'syakakwirira-yemhando yesimbi isina tsvina uye kushandisa kwakaringana mushure mekurapa maitiro, zvishandiso zvako zvinogara kwenguva yakareba uye kuita zvirinani pasi pemamiriro akaomarara.

Zvakanakira Pickling uye Passivation

Kuita marapirwo aya kunopa mabhenefiti akawanda:

• Inodzoreredza kuzara kwemarara

• Inovandudza kuchena kwepamusoro

• Inobvisa zvinosvibisa zvakaiswa

• Inovandudza hupenyu hwesimbi isina tsvina

• Inogadzira zvinhu zvekupenda kana kupfekedza

Kune maindasitiri akaita semishonga, kugadzira chikafu, uye oiri & gasi, pickling uye passivation hazvisi zvekusarudza - zvinodikanwa kuchengetedza kutendeseka kwechigadzirwa uye kutevedzera mitemo yenyika.

Indasitiri Maitiro ePickling uye Passivation

Zviyero zvakati wandei zvepasi rose zvinotsanangura maitiro uye nhungamiro:

• ASTM A380: Yakajairika tsika yekuchenesa, kudzikisa, uye passivation

• ASTM A967: Tsanangudzo yemakemikari passivation marapirwo

• EN 2516: Miyero yeEurope yeaerospace simbi isina simbi passivation

Gara uine shuwa kuti zvigadzirwa zvako zvesimbi isina simbi zvinosangana nezviyero izvi, kunyanya kana zvichishandiswa munzvimbo dzakasimba kana dzine njodzi. Atsakysteel, tinopa zvinhu uye tsigiro yehunyanzvi inoenderana neaya akasimba epasi rose maitiro.

Dzakajairwa Nzira dzekushandisa

Zvichienderana nehukuru hwechikamu, chimiro, uye nharaunda, aya maitiro anogona kushandiswa nenzira dzakasiyana:

• Kunyudzwa (Tangi): Inokodzera zvikamu zviduku kusvika pakati nepakati

• Spray Pickling: Inoshandiswa kumidziyo mikuru kana kuisa

• Brush Application: Yakanakira kurapwa kwenzvimbo senge weld seams

• Kutenderera: Inoshandiswa mumapiping systems ekurapwa kwemukati

Kusuka kwakakodzera uye kusarerekera mushure mekurapwa kwakakosha kudzivirira masara easidhi.

Mafungiro Ezvakatipoteredza uye Kuchengetedzwa

Zvese zviri zviviri pickling uye passivation zvinosanganisira makemikari anoda kungwarira kubata:

• Gara uchipfeka zvekuzvidzivirira nazvo (PPE)

• Neutralize mhinduro dzemarara usati warasa

• Ita marapirwo munzvimbo ine mhepo inofefetera kana pasi pekubvisa utsi

• Tevedzera mirau yezvakatipoteredza maererano nekushandiswa uye kuraswa kweasidhi

Mhedziso

Pickling uye passivation matanho akakosha mukuona kuti simbi isina tsvina inoramba ichiramba kuita ngura uye kushanda kwenguva refu. Nepo pickling ichichenesa uye ichibvisa chiyero, passivation inosimbisa inodzivirira oxide layer-pamwe chete, vanogadzirira simbi isina tsvina kune inonyanya kudiwa maapplication.

Kusarudza simbi isina tsvina kwakakosha sekuibata nemazvo. Ndosaka maindasitiri pasi rese achivimbasakysteelkuendesa simbi isina simbi yakasimbiswa, isingadziviriri pamwe chete nerutsigiro rwehunyanzvi rwekugadzirisa nekugadzira. Kuti uwane mhinduro dzakavimbika mukushanda kwesimbi isina tsvina, tendeukira kusakysteel- shamwari yako yesimbi yaunovimba nayo.