Kurapa kwePhosphating yeKusvuta
Chii chinonzi pickling phosphating
Inzira yekurapa pamusoro pesimbi, kusvina simbi kunoreva kushandisa acid yakawanda kuchenesa simbi kubvisa ngura pamusoro. Kunyudza simbi yakagezwa neacid ne phosphate solution kuti igadzire oxide film pamusoro, iyo inogona kudzivirira ngura uye kunatsiridza kunamira kwependi kugadzirira danho rinotevera.
Kubvisa ngura nekubvisa ganda ndiyo nzira inonyanya kushandiswa mumaindasitiri. Chinangwa chekubvisa ngura nekubvisa ganda chinowanikwa nekubvisa hydrogen inogadzirwa neacid dissolving yeoxide ne corrosion. Inonyanya kushandiswa mu pickling ihydrochloric acid, sulfuric acid uye phosphoric acid. Nitric acid haiwanzo shandiswa nekuti inogadzira nitrogen dioxide gasi rine chepfu panguva ye pickling. Hydrochloric acid pickling yakakodzera kushandiswa patembiricha yakaderera, haifanirwe kudarika 45℃, kushandiswa kwehuwandu hwe10% kusvika 45%, kunofanirawo kuwedzera huwandu hwakakodzera hweacid mist inhibitor yakakodzera. Sulfuric acid patembiricha yakaderera pickling kumhanya kunonoka zvikuru, inofanira kushandiswa patembiricha yepakati, tembiricha ye50 ~ 80℃, kushandiswa kwehuwandu hwe10% ~ 25%. Kubatsira kwe phosphoric acid pickling ndekwekuti haizoburitse marara anoparadza (zvichida kana zvishoma pachava neCl-, SO42- residue mushure me hydrochloric acid ne sulfuric acid pickling), izvo zvakachengeteka, asi dambudziko re phosphoric acid nderekuti mutengo wakakwira, kumhanya kwe pickling kunononoka, huwandu hwekushandiswa kwakajairika hwe10% kusvika 40%, uye tembiricha yekurapa inogona kuva tembiricha yakajairika kusvika 80℃. Mukuita pickling, kushandiswa kwema mixed acids inzira inoshanda zvikuru, senge hydrochloric-sulfuric acid mixed acid, phospho-citric acid mixed acid. Huwandu hwakakodzera hwe corrosion inhibitor hunofanira kuwedzerwa kune pickling, kubvisa ngura uye oxidation removal tank solution. Kune mhando dzakawanda dze corrosion inhibitors, uye sarudzo yacho iri nyore, uye basa rayo nderekudzivirira ngura yesimbi nekudzivirira "hydrogen embrittlement". Zvisinei, pakusarudza zvinhu zvinodzivirira ngura zvinonzwa "hydrogen embrittleness", sarudzo yezvinodzivirira ngura inofanira kungwarira zvikuru, nekuti zvimwe zvinodzivirira ngura zvinodzivisa kuita kwemaatomu maviri ehydrogen kuita mamorekuru ehydrogen, anoti: 2[H]→H2↑, kuitira kuti huwandu hwemaatomu ehydrogen pamusoro pesimbi huwedzere, zvichiwedzera maitiro e "hydrogen embrittleness". Saka, zvakakosha kutarisa bhuku reruzivo rwe corrosion kana kuita bvunzo ye "hydrogen embrittlements" kudzivirira kushandiswa kwezvinodzivirira ngura zvine njodzi.
Kubudirira kwetekinoroji yekuchenesa maindasitiri - kuchenesa nelaser yakasvibira
Iyo inonzi tekinoroji yekuchenesa laser inoreva kushandiswa kwechiedza chine simba guru kupenya pamusoro pechinhu chebasa, kuitira kuti pamusoro pevhu, ngura kana kuputira pave nekubuda kwemvura kana kubvisa, kubvisa nekukurumidza uye zvinobudirira kwechinhu chakanamirwa pamusoro kana kuputira pamusoro, kuitira kuti pave nemaitiro akachena. Iyi tekinoroji itsva yakavakirwa pamhedzisiro yekubatana kwelaser nezvinhu, uye ine mabhenefiti akajeka kana tichienzanisa nenzira dzechinyakare dzekuchenesa dzakadai sekuchenesa michina, kuchenesa ngura yemakemikari, kuchenesa kwakasimba kwemvura, kuchenesa kwe ultrasonic kakawanda. Inoshanda zvakanaka, inokurumidza, inodhura zvishoma, mutoro mudiki wekupisa uye mutoro wemagetsi pa substrate, uye haikuvadzi pakuchenesa; Marara anogona kudzokororwa, hapana kusvibiswa kwezvakatipoteredza kwakachengeteka uye kwakavimbika, haakuvadzi hutano hwemushandi anogona kubvisa ukobvu hwakasiyana, zvikamu zvakasiyana zve coating level kuchenesa zviri nyore kuwana otomatiki kudzora, kuchenesa kure nekudzora nezvimwewo.
Tekinoroji yekuchenesa nelaser isina kusvibiswa uye yakasvibirira inogadzirisa zvachose kushoropodzwa kwekusvibiswa kwezvakatipoteredza kwetekinoroji yekurapa ne pickling phosphating. Tekinoroji yekudzivirira zvakatipoteredza uye tekinoroji yekuchenesa negirinhi - "laser cleaning" yakavapo uye yakawedzera nekufamba kwenguva. Tsvagiridzo yayo, kuvandudzwa kwayo uye mashandisirwo ayo zviri kutungamira shanduko itsva yemhando yekuchenesa maindasitiri uye zvinounza chitarisiko chitsva kuindasitiri yepasi rose yekurapa pamusoro.