Ⅰ- Acidpickling
1.-Nkọwa nkeAcid-Pickling: A na-eji acid na-ewepụ ihe ọ̀tụ̀tụ̀ iron oxide n'ụzọ kemịkal n'otu ebe, okpomọkụ, na ọsọ, nke a na-akpọ pickling.
2.- Acid-Nhazi nke pickling: Dị ka ụdị acid si dị, a na-ekewa ya gaa na sulfuric acid pickling, hydrochloric acid pickling, nitric acid pickling, na hydrofluoric acid pickling.A ga-ahọrọ usoro mgbasa ozi dị iche iche maka pickling dabere na ihe nke igwe, dị ka ịchịkọta carbon ígwè na sulfuric acid na hydrochloric acid, ma ọ bụ pickling igwe anaghị agba nchara na ngwakọta nke nitric acid na hydrofluoric acid.
Dị ka nchara si dị, a na-ekewa ya na ịpị waya, ịfụ afụ, ịcha efere efere, ịcha akwa, wdg.
Dị ka ụdị ngwá ọrụ pickling si dị, a na-ekewa ya n'ịkpọkọta tankị, nke na-aga n'ihu na-aga n'ihu, pickling na-aga n'ihu n'ụzọ zuru ezu, na ụlọ elu.
3.- Ụkpụrụ nke pickling acid: Acid pickling bụ usoro iji ụzọ kemịkal wepụ ihe akpịrịkpa ígwè oxide n'elu ígwè, ya mere a na-akpọkwa ya chemical acid pickling.Ihe akpịrịkpa ígwè oxide (Fe203, Fe304, Fe0) nke e guzobere n'elu ọkpọkọ ígwè bụ oxide bụ isi nke na-adịghị edozi na mmiri.Mgbe a na-emikpu ha na ngwọta acid ma ọ bụ fesa ha na ngwọta acid n'elu, ihe ndị a bụ isi oxide nwere ike ime mgbanwe mgbanwe kemịkalụ na acid.
N'ihi ọdịdị na-adịghị mma, porous, na gbajiri agbaji nke ọnụ ọgụgụ oxide n'elu nke carbon structural steel ma ọ bụ obere alloy ígwè, jikọtara ya na mgbanaka ugboro ugboro nke oxide ọnụ ọgụgụ ya na warara ígwè n'oge ịgbazite, esemokwu na-agbazigharị, na njem n'elu. ahịrị pickling, oghere ndị a na-abawanye ma gbasaa.Ya mere, ihe ngwọta acid na-emeghachi omume na ọnụ ọgụgụ oxide na-emeghachi omume ma na-emeghachi omume na ígwè nchara nchara site na mgbawa na pores.Ya bụ, na mmalite nke ịsacha acid, atọ chemical mmeghachi omume n'etiti ígwè oxide ọnụ ọgụgụ na metal ígwè na acid ngwọta na-mere n'out oge Iron oxide akpịrịkpa na-enweta a chemical mmeghachi omume na acid na-etisasịwo (mgbasa) ígwè reacts na acid ka. na-emepụta hydrogen gas, nke na-eji ígwè na-apụ apụ n'ọnụ ọgụgụ oxide (mechanical peeling effect) Mmiri hydrogen a na-emepụta na-ebelata ígwè oxides na ferrous oxides nke na-enwekarị mmeghachi omume acid, wee meghachi omume na acid ka ewepụrụ (mbelata).
Ⅱ-Mmasị/Akwụsịghị ọrụ/mmenyụ
1.- Passivation ụkpụrụ: The passivation usoro nwere ike kọwara site mkpa film tiori, nke na-atụ aro na passivation bụ n'ihi na mmekọrịta n'etiti ọla na oxidizing bekee, na-amụ a dị gịrịgịrị, ok, ọma kpuchie, na ike adsorbed passivation film na metal elu.Igwe ihe nkiri a dị ka akụkụ nke nọọrọ onwe ya, na-abụkarị ngwakọta nke ọla oxidized.Ọ na-ekere òkè n'ịkewapụta ígwè ahụ kpamkpam site na ihe ndị na-emebi emebi, na-egbochi ígwè ahụ ka ọ ghara ịbanye na kọntaktị na-emebi emebi, si otú ahụ na-akwụsị nkwụsị nke ígwè ahụ na ịmepụta ọnọdụ na-adịghị mma iji nweta mmetụta mgbochi corrosion.
2.- Uru nke passivation:
1) Tụnyere na omenala anụ ahụ akara ụzọ, passivation ọgwụgwọ nwere àgwà nke nnọọ adịghị amụba ọkpụrụkpụ nke workpiece na-agbanwe agba, na-emezi nkenke na kwukwara uru nke ngwaahịa, na-eme ka ọrụ ndị ọzọ adaba;
2) N'ihi ọdịdị na-adịghị arụ ọrụ nke usoro ngafe ahụ, onye ọrụ passivation nwere ike ịgbakwunye ugboro ugboro ma jiri ya mee ihe, na-eme ka ndụ dịkwuo ogologo na ọnụ ahịa akụ na ụba.
3) Passivation na-akwalite guzobe oxygen molekul Ọdịdị passivation film na metal elu, nke bụ kọmpat na kwụsiri ike na arụmọrụ, na nwere onwe ịrụkwa mmetụta na ikuku n'otu oge.Ya mere, e jiri ya tụnyere usoro omenala nke mkpuchi mmanụ mgbochi, ihe nkiri passivation nke e mere site na passivation na-esiwanye ike ma na-eguzogide corrosion.Ọtụtụ n'ime mmetụta ụgwọ na oyi akwa oxide na-emetụta ya ozugbo ma ọ bụ na-apụtaghị ìhè na usoro nke oxidation thermal.Na okpomọkụ nso nke 800-1250℃, Usoro oxidation thermal na-eji oxygen akọrọ, ikuku oxygen, ma ọ bụ uzuoku mmiri nwere usoro atọ na-aga n'ihu.Nke mbụ, ikuku oxygen dị na gburugburu ebe obibi na-abanye n'ime oyi akwa oxide na-emepụta, mgbe ahụ ikuku oxygen na-agbasa n'ime ya site na silicon dioxide.Mgbe ọ ruru interface Si02-Si, ọ na-emeghachi omume na silicon iji mepụta silicon dioxide ọhụrụ.N'ụzọ dị otú a, usoro mmeghachi omume na-aga n'ihu nke ntinye ikuku oxygen na-eme, na-eme ka silicon dị nso na interface na-aga n'ihu na-agbanwe n'ime silica, na oyi akwa oxide na-etolite n'ime ime silicon wafer n'otu ọnụego.
Ⅲ- Phosphate
Ọgwụgwọ Phosphating bụ mmeghachi omume kemịkalụ nke na-etolite akwa ihe nkiri (ihe nkiri phosphating) n'elu. A na-ejikarị usoro ọgwụgwọ phosphating eme ihe n'elu ígwè, na ebumnuche nke inye ihe nkiri nchebe iji kewapụ ígwè na ikuku ma gbochie mmebi;Enwere ike iji ya mee ihe dị ka primer maka ụfọdụ ngwaahịa tupu eserese.Site na oyi akwa a nke ihe nkiri phosphating, ọ nwere ike ime ka adhesion na corrosion na-eguzogide oyi akwa nke agba agba, meziwanye ihe ịchọ mma, ma mee ka elu igwe mara mma.Ọ nwekwara ike ịrụ ọrụ mmanye n'ụfọdụ usoro ọrụ oyi nke igwe.
Mgbe ọgwụgwọ phosphating gasịrị, workpiece agaghị oxidize ma ọ bụ nchara ruo ogologo oge, yabụ ngwa nke ọgwụgwọ phosphating dị ukwuu ma bụrụkwa usoro ọgwụgwọ elu igwe a na-ejikarị.A na-ejikarị ya eme ihe na ụlọ ọrụ dịka ụgbọ ala, ụgbọ mmiri, na n'ichepụta ihe.
1.- Nhazi na ngwa nke phosphating
Ọtụtụ mgbe, ọgwụgwọ elu ga-eweta agba dị iche iche, mana ọgwụgwọ phosphating nwere ike ịdabere na mkpa n'ezie site na iji ụdị phosphating dị iche iche na-enye agba dị iche iche.Nke a bụ ya mere anyị na-ahụkarị ọgwụgwọ phosphating na agba ntụ, agba, ma ọ bụ oji.
Iron phosphating: mgbe phosphating gasịrị, elu ga-egosi agba egwurugwu na acha anụnụ anụnụ, ya mere a na-akpọkwa ya phosphorus agba.Ngwọta phosphating tumadi na-eji molybdate dị ka akụrụngwa, nke ga-etolite ihe nkiri phosphating agba egwurugwu n'elu ihe igwe, a na-ejikwa ya agba agba nke ala, iji nweta nguzogide corrosion nke workpiece ma melite nrapado. nke mkpuchi elu.
JINBAICHENG bụ a na-eduga ígwè anwụrụ factory na China, Anyị nwere ike na-emepụta na-enye enweghị nkebi ígwè ọkpọkọ, welded ọkpọkọ, ssaw ọkpọkọ, gi ọkpọkọ na elu nke Acid-Pickling, Mmasị, na phosphating.Anyị na-enye ọrụ-akwa akwa ma nye gị ngwọta kachasị mma maka ọrụ gị.Kpọtụrụ anyị maka ọnụahịa kacha mma:https://www.sdjbcmetal.com/steel-pipe-series/ email:jinbaichengmetal@gmail.com ma ọ bụ WhatsApp nahttps://wa.me/18854809715
Oge nzipu: Jul-12-2023