Chii chinonzi Passivation yeStainless Steel?

Simbi isina tsvina inokosheswa zvakanyanya nekuda kwekupokana kwayo nekuora uye kuchena kwayo, kutaridzika kwemazuva ano. Asi kunyangwe ichi chinogara chakasimba chinobatsirwa kubva kune kumwe kurapwa kuti iwedzere kusakara kwayo - maitiro anozivikanwa sepassivation. Uku kurapwa kwemakemikari kunoita basa rakakosha mukuwedzera hupenyu hurefu uye kushanda kwesimbi isina tsvina mumaindasitiri.

Muchikamu chino, tinotsanangura kuti passivation chii, kuti inoshanda sei, nei ichikosha, uye painonyanya kushandiswa. Semutengesi anotungamira simbi isina tsvina,sakysteelinopa zvese passivated uye zvisiri-passivated Stainless simbi zvigadzirwa zvakagadzirirwa kusangana nepasi rose zviyero.

Chii chinonzi Passivation

Passivation chirongwa chemakemikari chinobvisa simbi yemahara uye zvimwe zvinosvibisa pamusoro pesimbi isina tsvina. Mushure mekuchenesa, simbi inobatwa neine oxidant yakapfava, kazhinji nitric acid kana citric acid, kukurudzira kuumbwa kweakatetepa, akajeka oxide layer pamusoro.

Iyi yekudzivirira inonatsiridza zvakanyanya kuramba kwesimbi kune ngura uye ngura nekudzivirira nzvimbo dzinoshanda dzinotungamira kukuchinja kwemakemikari nemhoteredzo.

Passivation haisi yekuputira kana plating. Pane kudaro, inokwidziridza simbi isina simbi inodzivirira nekubvumira iyo chromium yemukati kuti igadzire yakagadzikana passive oxide layer.

Mashandiro Anoita Passivation

Iyo nzira inowanzobatanidza matanho makuru matatu:

1. Kuchenesa
   Mafuta ese, girizi, uye marara anofanira kubviswa uchishandisa alkaline kana solvent-based cleaners. Izvi zvinoita kuti bhati reasidhi ribatane nesimbi isina chinhu.

2. Acid Bath Treatment
   Simbi isina tsvina inobva yanyudzwa mune passivating acid solution, yakadai senitric kana citric acid. Izvi zvinobvisa simbi yepamusoro uye zvinokonzeresa kuumbwa kwepasire chromium oxide layer.

3. Kusuka uye Kuomesa
   Mushure mekushambidza kweasidhi, zvinyorwa zvinonyatsocheneswa nemvura yakasvibiswa uye yakaomeswa. Izvi zvinovimbisa kuti hapana asidhi kana zvinosvibisa zvinoramba zviri pamusoro.

Mhedzisiro yacho inzvimbo yakatsetseka, yakagadzikana yekemikari inodzivisa ngura kunyangwe munzvimbo dzakaoma.

Nei Passivation Yakakosha

Kunyangwe simbi isina tsvina iine chromium uye yatove isingadzivirirwe nekuora, mashandiro emuchina sekucheka, welding, kana machining anogona kuunza simbi yemahara kumusoro. Aya masimbi anogona kukonzeresa ngura munzvimbo kana isina kubviswa.

Passivation inodzoreredza kuvimbika kwesimbi yepasi ne:

• Kubvisa kusvibiswa

• Kuwedzera kusagadzikana kwehuori

• Kuvandudza kusimba munzvimbo dzine hutsinye

• Kutsigira kuchenesa uye sanitary zviyero

Kune maindasitiri akadai sekugadzira chikafu, mishonga yemishonga, uye aerospace, passivation haina kungokurudzirwa - inowanzodiwa.

Zvakajairwa Zvishandiso zvePasivated Stainless Steel

Passivation inoshandiswa zvakanyanya muzvikamu zvinoda kureba kwekugara kwecorrosion uye kuchena. Mimwe mienzaniso inosanganisira:

• Chikafu uye Chinwiwa Processing Equipment
  Kudzivirira kusvibiswa uye kukura kwebhakitiriya munzvimbo dzine hutsanana.

• Pharmaceutical uye Medical Devices
  Zviridzwa uye zvinhu zvekuvhiya zvinofanirwa kunge zvisiri-reactive uye zvisina ngura.

• Indasitiri yeOiri neGasi
  Kuwedzera hupenyu hwezvikamu zvakafumurwa kumakemikari, mvura yemunyu, kana hunyoro hwepamusoro.

• Semiconductor Manufacturing
  Ultra-yakachena nzvimbo inoderedza kusvibiswa kwechikamu munzvimbo dzakaoma.

sakysteelinopa simbi isina tsvina zvinhu zvinosangana neASTM A967 uye mamwe mazinga epasi rose, zvichitsigira vatengi mumaindasitiri aya anodiwa.

Zviyero uye Zvinotsanangurwa

Iyo passivation process inotongwa neakati wandei epasirese mwero anotsanangura akanakisa maitiro, nzira dzekuyedza, uye mashandisiro emakemikari. Izvi zvinosanganisira:

• ASTM A967: Yakajairwa yakatarwa yemakemikari passivation marapirwo ezvikamu zvesimbi

• ASTM A380: Nhungamiro yekuchenesa, kudzikisa, uye kupfuudza

• ISO 16048: International passivation standard

Aya mazinga anovimbisa kuti maitiro anoitwa nemazvo uye iyo yekupedzisira nzvimbo inosangana neinodiwa corrosion resistance.

Matauriro Ekutaura Kana Stainless Simbi Yakapfuura

Passivated Stainless Simbi haitaridziki zvakasiyana zvakanyanya kune ziso rakashama. Nekudaro, bvunzo dzehunyanzvi dzakadai seyemhangura sulfate bvunzo, kuratidzwa kwehunyoro hwepamusoro, kana munyu wekupfapfaidza munyu unogona kuona kana iyo passive layer iripo uye inoshanda.

Mamwe maindasitiri anoda zvinhu certification ye passivation.sakysteelinopa zvizere zvinyorwa uye mishumo yebvunzo yezvakapfuura zvigadzirwa pakukumbira.

Benefits of Passivation

Kupfupisa, zvakakosha mabhenefiti eStainless simbi passivation anosanganisira:

• Kuwedzera kupikisa kugomba uye ngura

• Hupenyu hurefu hwebasa rezvikamu

• Nzvimbo dzakachena uye dzine hutsanana hwakawanda

• Kuvandudzwa kwekuita munzvimbo dzemakemikari kana saline

• Kutevedzera mitemo yeindasitiri yepasi rose

Nekudyara muzvinhu zvakafambiswa, mabhizinesi anodzikisa mutengo wekugadzirisa, kuvandudza kuchengetedza, uye kuwedzera kuvimbika kwemidziyo.

Mhedziso

Passivation inzira yakakosha mukurapa kwesimbi isina tsvina, kunyanya kune maapplication uko kushora uye kuchena kwakakosha. Nekubvisa zvinosvibisa pamusoro uye nekusimudzira iyo inodzivirira oxide layer, maitiro aya anobvumira Stainless simbi kuti iite zvakanaka.

Kunyangwe iwe uchida passivated pombi, fittings, matangi, kana tsika zvinhu,sakysteelinogona kupa mhinduro dzinosangana neyako chaiyo yakatarwa uye indasitiri yekutevedzera zvinodiwa. Bata timu yedu kuti udzidze zvakawanda nezve yedu Stainless simbi yekugadzirisa masevhisi uye mabatiro atingaita kukwirisa purojekiti yako inotevera.