Maka njikwa nke mmiri na-asa mmiri hydrochloric acid, ihe kachasị mkpa bụ ịchịkwa oge nchịkọta na ndụ nke tankị pickling, iji hụ na mmepụta kachasị na ndụ ọrụ nke tankị pickling.
Iji nweta mmetụta pickling kacha mma, a ga-ebu ụzọ chịkwaa ịta nke hydrochloric acid, wee chịkwaa ọdịnaya nke ion iron (nnu iron) na ngwọta pickling.N'ihi na ọ bụghị naanị na ịta nke acid ga-emetụta pickling mmetụta nke workpiece, kamakwa ọdịnaya nke ígwè ion ga-ebelata uka akụkụ nke pickling ngwọta, nke ga-emetụta pickling mmetụta na ọsọ nke workpiece.Ọ dị mma ịmara na iji nweta ọrụ pickling kacha mma, ngwọta pickling ga-enwekwa ụfọdụ ion ígwè.
(1)Oge nchịkọta
N'ezie, oge pickling na-adabere na ntinye nke hydrochloric acid/ion ion (nnu iron) na okpomọkụ nke ngwọta pickling.
Mmekọrịta dị n'etiti oge nchịkọta na ọdịnaya zinc:
Ọ bụ a maara nke ọma eziokwu na-ekpo ọkụ itinye galvanizing arụmọrụ na ojiji nke nchebe overpickling nke galvanized workpieces na-akpata ọzọ zinc loading, ntụgharị "overpickling" na-abawanye zinc oriri.
N'ozuzu, imikpu n'ime tankị pickling maka awa 1 zuru ezu iji wepụ nchara ahụ kpamkpam.Mgbe ụfọdụ, n'okpuru ọnọdụ ọrụ nke ụlọ ọrụ mmepụta ihe, a na-etinye plated workpiece na pickling tank n'otu ntabi anya, ya bụ, imikpu maka 10-15 awa.Ndị dị otú ahụ galvanized workpieces na-pachie na ihe zinc karịa oge pickling.
(2)Nhọrọ kacha mma
Ihe kacha mma pickling nke workpiece kwesịrị ịbụ mgbe ịta nke hydrochloric acid na ịta nke precipitated ígwè ion (iron salts) ruru a ikwu itule.
(3)Usoro ọgwụgwọ maka mbelata mmetụta acid
Mgbe ngwọta pickling na-ebelata ma ọ bụ na-efunahụ mmetụta pickling n'ihi saturation nke ion ígwè (nnu iron), enwere ike ịgbanye ya na mmiri iji weghachi ọrụ pickling.Ọ bụ ezie na ntinye nke hydrochloric acid na-ebelata, ọrụ pickling ka nwere ike ịrụ ọrụ, mana ọnụego ya na-eji nwayọọ nwayọọ.Ọ bụrụ na agbakwunyere acid ọhụrụ na ngwọta pickling nke nwere iron jujuru afọ, ntinye nke ngwọta ịsacha hydrochloric acid ọhụrụ ga-ada n'elu ebe saturation, na pickling nke workpiece agaghị ekwe omume.
(4)Usoro ọgwụgwọ mgbe acid solubility belatara
Mgbe a na-eji ngwọta pickling mee ihe ruo oge ụfọdụ, itinye uche ya na-ebelata ma ghọọ acid efu.Agbanyeghị, acid n'oge a enweghị ike ị nwetaghachi onye nrụpụta, ma ka na-ejigide ụfọdụ uru maka ojiji.Iji jiri acid dị ala na-ebelata itinye uche, n'oge a, a na-etinyekarị workpieces nke nwere ntapu mmiri nke mpaghara na galvanizing na-ekpo ọkụ ma dị mkpa ka etinyeghachi ya n'etiti ha, pickling na reprocessing bụkwa ezigbo ojiji nke. imefu acid.
Usoro iji dochie acid ochie na ngwọta hydrochloric acid pickling:
Mgbe nnu ígwè dị na ochie acid karịrị ọdịnaya akọwapụtara, ọ ga-eji acid ọhụrụ dochie ya.Usoro a bụ na acid ọhụrụ na-enweta 50%, a na-agbakwunye acid ochie na acid ọhụrụ mgbe mmiri ozuzo gasịrị, ọnụ ọgụgụ nke ochie acid bụ ~ 50%.Iron salts nwere ihe na-erughị 16% nwere ike ịbawanye ọrụ nke ngwọta pickling, nke dị iche na acid sparse, ma na-echekwa ọnụ ọgụgụ nke acid.
Otú ọ dị, n'ime usoro a, na ọganihu nke nkà na ụzụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ, a ghaghị ime ọnụ ọgụgụ nke ochie acid na-adabere na ịchịkwa ọdịnaya nke nnu ígwè ochie nke acid ochie, na ntinye nke nnu ígwè na ọhụrụ. Ekwesịrị ịchịkwa ngwọta hydrochloric acid n'ime ọbụ aka gị.N'ime oke ahụ, ịgaghị eso ụkpụrụ ụfọdụ kpuru ìsì.
Workpiece ígwè ihe na pickling ọsọ
The pickling ọsọ dịgasị iche iche na mejupụtara nke pickled ígwè workpiece na n'ihi na ọnụ ọgụgụ.
Ọdịnaya carbon dị na ígwè nwere mmetụta dị ukwuu n'ọ̀tụ̀tụ̀ mgbaze nke matriks ígwè.Mmụba nke ọdịnaya carbon ga-abawanye ọnụego mgbasa nke matrix ígwè ngwa ngwa.
The mgbasa ọnụego nke ígwè workpiece matrix mgbe oyi na-ekpo ọkụ nhazi na-abawanye;mgbe mgbasa ọnụego nke ígwè workpiece mgbe annealing ga-ebelata.N'ọnụ ọgụgụ ígwè oxide n'elu nke ígwè workpiece, mgbasa nke ígwè monoxide dị ukwuu karịa nke ferric oxide na ferric oxide.Mpempe ígwè a na-akpụgharị akpụ nwere ọtụtụ ígwè monoxide karịa ibé ígwè annealed.Ya mere, ya pickling ọsọ dịkwa ngwa ngwa.Ka akpụkpọ ahụ nke ígwè oxide na-aba ụba, ka oge nchịkọta ahụ na-adị ogologo karị.Ọ bụrụ na ọkpụrụkpụ nke ígwè oxide akpịrịkpa abụghị otu, ọ dị mfe ịmepụta ntụpọ na-adịghị mma nke mpaghara ma ọ bụ na-ebufe oke.
Oge nzipu: Feb-27-2023