Chii chinonzi Passivation yeSimbi Isina Chinoti?

Simbi isina ngura inokosheswa zvikuru nekuda kwekudzivirira kwayo ngura uye chitarisiko chayo chakachena uye chemazuva ano. Asi kunyange chinhu ichi chakasimba chinobatsira nekuwedzera kurapwa kuti chiwedzere kudzivirira kwayo ngura - maitiro anozivikanwa sekusava nehanyaKurapa kwemakemikari uku kunoita basa guru mukuwedzera hupenyu hwesimbi isingatsvi mumaindasitiri akasiyana-siyana.

Muchinyorwa chino, tinotsanangura kuti chii chinonzi passivation, kuti chinoshanda sei, nei chichikosha, uye kuti chinonyanya kushandiswa kupi. Semutengesi wesimbi isingatsvi,sakysteelinopa zvigadzirwa zvesimbi isina ngura zvisingashandiswi uye zvisina ngura zvakagadzirirwa kusangana nezvinodiwa pasi rose.

Chii chinonzi Passivation

Passivation inzira yemakemikari inobvisa simbi isina tsvina nezvimwe zvinosvibisa pamusoro pesimbi isingatsvi. Mushure mekuchenesa, simbi inorapwa ne oxidant isina kusimba, kazhinji nitric acid kana citric acid, kukurudzira kuumbwa kwe oxide layer yakatetepa, yakajeka pamusoro.

Rutivi urwu rwekudzivirira runobatsira zvikuru kudzivirira simbi kubva kungura nengura nekudzivirira nzvimbo dzinoshanda dzinokonzera kusawirirana kwemakemikari nezvakatipoteredza.

Kunyungudutsa hakusi kuputira kana kuputira. Pane kudaro, kunovandudza hunhu hwechisikigo hwesimbi isingasvibi nekubvumira huwandu hwayo hwechromium kugadzira ganda rakagadzikana risingasvibi.

Mashandiro anoita Passivation

Maitiro acho anowanzo sanganisira matanho makuru matatu:

1. Kuchenesa
   Mafuta ese, mafuta, uye marara zvinofanirwa kubviswa uchishandisa mishonga yekuchenesa ine alkaline kana solvent. Izvi zvinoita kuti mvura inodziya ikwanise kubata pamusoro pesimbi isina chinhu.

2. Kurapa kweAcid Bath
   Simbi isingatsvi inozonyudzwa mumushonga weasidhi inonyungudika, senge nitric kana citric acid. Izvi zvinobvisa simbi yepamusoro uye zvinokonzera kuumbwa kwechikamu chechromium oxide.

3. Kusukurudza uye Kuomesa
   Mushure mekugezesa neacid, chinhu chacho chinosukurudzwa zvakanaka nemvura yakabviswa maion uye chinoomeswa. Izvi zvinoita kuti pasave neacid kana tsvina inosara pamusoro.

Mugumisiro wacho unova pamusoro wakatsetseka, wakagadzikana nemakemikari unodzivirira ngura kunyangwe munzvimbo dzakaoma.

Nei Kusada Kuchikosha

Kunyange hazvo simbi isingasvibi iine chromium uye ichitove inodzivirira ngura, kugadzirwa kwemuchina kwakadai sekucheka, kusanganisa, kana kugadzira kunogona kuunza simbi yakasununguka pamusoro. Zvidimbu zvesimbi izvi zvinogona kukonzera ngura iri munzvimbo iyoyo kana zvikasabviswa.

Passivation inodzoreredza kusimba kwesimbi pamusoro ne:

• Kubvisa kusvibiswa

• Kuvandudza kuramba ngura

• Kuvandudza kugara kwenguva refu munzvimbo dzine hasha

• Kutsigira mitemo yekuchenesa nekuchengetedza hutsanana

Kune maindasitiri akadai sekugadzira chikafu, mishonga, uye ndege, kushandisa passivation hakungokurudzirwa chete - kunowanzo dikanwa.

Maitiro Akajairika eSimbi Isina Kushandiswa

Passivation inoshandiswa zvakanyanya munzvimbo dzinoda kuramba ngura kwenguva refu uye kuchena. Mimwe mienzaniso inosanganisira:

• Midziyo yekugadzira chikafu nechinwiwa
  Kudzivirira kusvibiswa uye kukura kwemabhakitiriya munzvimbo dzakachengetedzwa.

• Mishonga neMidziyo Yekurapa
  Zvishandiso nemidziyo yekuvhiya zvinofanira kunge zvisingashande uye zvisina ngura.

• Indasitiri yeOiri neGasi
  Kurebesa hupenyu hwezvinhu zvinosangana nemakemikari, mvura yemunyu, kana hunyoro hwakawanda.

• Kugadzira Semiconductor
  Nzvimbo dzakachena zvakanyanya dzinoderedza kusvibiswa kwezvimedu munzvimbo dzakakosha.

sakysteelinopa zvinhu zvesimbi isingatsvi isingashandiswi zvinosangana neASTM A967 nedzimwe mitemo yepasi rose, zvichitsigira vatengi mumaindasitiri aya anorema.

Mitemo uye Magadzirirwo

Maitiro ekushandisa mushonga wepasi rose anotungamirirwa nematanho akati wandei epasi rose anotsanangura nzira dzakanakisisa dzekushandisa, nzira dzekuyedza, uye mashandisirwo emakemikari. Izvi zvinosanganisira:

• ASTM A967: Zvakajairwa zvinodiwa pakurapa kwemakemikari passivation yezvikamu zvesimbi isina tsvina

• ASTM A380: Nhungamiro dzekuchenesa, kubvisa makomba, uye kunyorovesa

• ISO 16048: Chiyero chepasi rose chekusateerera

Mitemo iyi inoita kuti maitiro acho aitwe nemazvo uye kuti pamusoro pechinhu chose panosangana zvinodiwa kuti pasave nekuora.

Maitiro Ekuziva Kana Simbi Isina Kushanda

Simbi isina tsvina isina chinhu haina kutaridzika zvakasiyana zvakanyanya nemaziso asina chinhu. Zvisinei, bvunzo dzakagadzirwa dzakadai sekuongororwa kwe copper sulfate, kuratidzwa kwehunyoro hwakawanda, kana kuyedzwa kwe salt spray kunogona kuratidza kana passive layer iripo uye inoshanda.

Mamwe maindasitiri anoda chitupa chezvinhu kuti akwanise kupasa basa.sakysteelinopa magwaro akazara nemishumo yekuedza yezvigadzirwa zvisina kunyoreswa kana zvakumbirwa.

Mabhenefiti ePassivation

Muchidimbu, mabhenefiti makuru ekushandiswa kwesimbi isina tsvina anosanganisira:

• Kudzivirira ngura negomba

• Hupenyu hwebasa hwakareba hwezvikamu

• Nzvimbo dzakachena uye dzakachena

• Kubudirira kwekushanda munzvimbo dzine makemikari kana munyu

• Kutevedzera mitemo yepasi rose yeindasitiri

Nekudyara mari muzvinhu zvisingashandiswi, mabhizinesi anoderedza mari yekugadzirisa, anovandudza kuchengetedzeka, uye anowedzera kuvimbika kwemidziyo.

Mhedziso

Kubvisa tsvina ibasa rakakosha pakurapa simbi isingatsvedzeri, kunyanya pakushandisa uko kuramba ngura nekuchena kwakakosha. Nekubvisa tsvina pamusoro uye kuwedzera ganda rekudzivirira oxide, maitiro aya anobvumira simbi isingatsvedzeri kushanda zvakanaka.

Kunyangwe uchida mapaipi asina kushandiswa, zvigadziko, matangi, kana zvinhu zvakagadzirwa,sakysteelinogona kukupa mhinduro dzinoenderana nezvaunoda chaizvo uye zvinodiwa neindasitiri. Bata timu yedu kuti udzidze zvakawanda nezvemabasa edu ekugadzirisa simbi isingatsvi uye kuti tingakubatsira sei kugadzirisa chirongwa chako chinotevera.