Seo pickling phosphating ke eng
Ke mokhoa oa ho phekola holim'a tšepe, pickling ke tšebeliso ea motsoako oa asiti ho hloekisa tšepe ho tlosa mafome a holim'a metsi.Phosphating ke ho kenya tšepe e hlatsoitsoeng ka acid ka tharollo ea phosphating ho etsa filimi ea oxide holim'a metsi, e ka thibelang mafome le ho ntlafatsa ho khomarela pente ho itokisetsa mohato o latelang.

Ho kha ho tlosa mafome le lekhapetla ke mokhoa o sebelisoang haholo lefapheng la indasteri.Sepheo sa ho tlosa mafome le ho tlosoa ha letlalo se finyelloa ka ho tlosoa ha haedrojene ka mechine e hlahisoang ke ho qhibiliha ha asiti ea oxide le corrosion.Tse tloaelehileng haholo tse sebelisoang ho pickling ke hydrochloric acid, sulfuric acid le phosphoric acid.Asiti ea nitric ha e sebelisoe ka seoelo hobane e hlahisa khase e chefo ea nitrogen dioxide nakong ea pickling.Hydrochloric acid pickling e loketse ho sebelisoa ka mocheso o tlase, ha ea lokela ho feta 45 ℃, tšebeliso ea mahloriso ea 10% ho isa ho 45%, e boetse e lokela ho eketsa palo e loketseng ea inhibitor ea moholi oa acid e loketse.Asiti ea sulfuric ka lebelo le tlase la mocheso oa ho khetha e lieha haholo, e lokela ho sebelisoa ka mocheso o mahareng, mocheso oa 50 ~ 80 ℃, ts'ebeliso ea mahloriso a 10% ~ 25%.Molemo oa phosphoric acid pickling ke hore e ke ke ea hlahisa masala a senyang (ho feta kapa ka tlase ho tla ba le masala a Cl-, SO42- ka mor'a hydrochloric acid le sulfuric acid pickling), e batlang e sireletsehile, empa bothata ba phosphoric acid ke hore litšenyehelo li phahame, lebelo la ho khetha le lieha, tšebeliso e akaretsang ea 10% ho isa ho 40%, 'me mocheso oa phekolo o ka ba mocheso o tloaelehileng ho 80 ℃.Ts'ebetsong ea pickling, tšebeliso ea li-acid tse tsoakiloeng e boetse e le mokhoa o atlehang haholo, o kang hydrochloric-sulfuric acid e tsoakiloeng, phospho-citric acid e tsoakiloeng.Palo e nepahetseng ea corrosion inhibitor e tlameha ho kenyelletsoa ho pickling, ho tlosa mafome le tharollo ea tanka ea ho tlosa oxidation.Ho na le mefuta e mengata ea li-corrosion inhibitors, 'me khetho e batla e le bonolo,' me karolo ea eona ke ho thibela ho bola ha tšepe le ho thibela "hydrogen embrittlement".Leha ho le joalo, ha pickling "hydrogen embrittleness" workpieces nahanela, khetho ea corrosion inhibitors lokela ho ba hlokolosi ka ho khetheha, hobane ba bang ba inhibitors corrosion thibela karabelo ea liathomo tse peli tsa haedrojene ka limolek'hule hydrogen, e leng: 2 [H] → H2↑, e le hore mahloriso. ea liathomo tsa haedrojene holim 'a tšepe e eketseha, ho matlafatsa "hydrogen embrittleness" tšekamelo.Ka hona, hoa hlokahala ho sheba bukana ea data ea corrosion kapa ho etsa tlhahlobo ea "hydrogen embrittlements" ho qoba tšebeliso ea li-inhibitors tse kotsi tsa corrosion.

Katleho ea theknoloji ea ho hloekisa indasteri - ho hloekisa laser e tala
Ho thoeng ke thekenoloji ea ho hloekisa ka laser e bua ka tšebeliso ea matla a phahameng a laser ho khantša bokaholimo ba mosebetsi, e le hore mobu o ka holim'a mobu, mafome kapa ho roala hang-hang ho fetoha mouoane kapa ho hlobola, ho tlosoa ka potlako le ka mokhoa o sebetsang ha ntho e ka holimo. sehokelo kapa ho roala ka holim'a metsi, e le ho fihlela ts'ebetso e hloekileng.Ke theknoloji e ncha e thehiloeng ho phello ea tšebelisano ea laser le ntho, 'me e na le melemo e totobetseng ha e bapisoa le mekhoa ea ho hloekisa ea setso e kang ho hloekisa ka mechine, ho hloekisa corrosion ea lik'hemik'hale, ho hloekisa metsi a matla a matla, ho hloekisa maqhubu a phahameng a ultrasonic.E sebetsa hantle, e potlakile, e theko e tlaase, moroalo o monyenyane oa mocheso le mojaro oa mechine holim'a substrate, 'me e sa senyehe bakeng sa ho hloekisa;Litšila li ka sebelisoa hape, ha ho na litšila tsa tikoloho tse sireletsehileng le tse ka tšeptjoang, ha li senye bophelo bo botle ba opareitara e ka tlosa mefuta e fapaneng ea botenya bo fapaneng, likarolo tse fapaneng tsa ts'ebetso ea ho hloekisa boemo ba ho roala ho bonolo ho fihlella taolo ea othomathike, ho hloekisa taolo ea hole joalo-joalo.

Theknoloji ea ho hloekisa ka laser e tala le e se nang tšilafalo e rarolla ka botlalo nyatso ea tšilafalo ea tikoloho ea theknoloji ea kalafo ea pickling phosphating.Theknoloji ea ts'ireletso ea tikoloho le theknoloji ea ho hloekisa botala - "ho hloekisa laser" e ile ea e-ba teng 'me ea phahama ka leqhubu.Patlisiso ea eona le nts'etsopele le ts'ebeliso ea eona e lebisa phetohong e ncha ea mohlala oa ho hloekisa indasteri le ho tlisa chebahalo e ncha indastering ea kalafo ea lefats'e.