Akụkọ

Ịdị adị nke akwa zinc ewetala ụfọdụ ihe isi ike na ịgbado ọkụ nke galvanized ígwè. Nsogbu ndị bụ isi bụ: mmụba nke mgbawa ịgbado ọkụ na pores, evaporation zinc na anwụrụ ọkụ, ntinye oxide slag, na agbaze na mmebi nke mkpuchi zinc. N'ime ha, ịgbado ọkụ mgbape, ikuku oghere na slag nsonye bụ isi nsogbu,
Weldability
(1) mgbawa
N'oge ịgbado ọkụ, zinc a wụrụ awụ na-ese n'elu ọdọ mmiri a wụrụ awụ ma ọ bụ na mgbọrọgwụ nke weld. N'ihi na ebe mgbaze nke zinc dị ala karịa nke ígwè, ígwè dị na ọdọ mmiri a wụrụ awụ na-ebu ụzọ kristal, zinc na-agbaze ga-abanyekwa n'ime ya n'akụkụ oke ọka nke ígwè, na-eduga ná ndakpọ nke njikọ intergranular. Ọzọkwa, ọ dị mfe na-etolite intermetallic kenkuwa ogige Fe3Zn10 na FeZn10 n'etiti zinc na ígwè, nke n'ihu ebelata plasticity nke weld metal, n'ihi ya, ọ dị mfe ịgbawa n'akụkụ ọka ókè na-etolite cracks n'okpuru mmetụta nke ịgbado ọkụ fọdụrụ nrụgide.
Ihe na-emetụta mgbape uche: ① Ọkpụrụkpụ nke zinc oyi akwa: zinc oyi akwa nke galvanized ígwè dị mkpa na mgbawa uche dị obere, ebe zinc oyi akwa nke na-ekpo ọkụ-mikpu galvanized ígwè bụ oké na mgbape uche bụ nnukwu. ② Workpiece ọkpụrụkpụ: ukwuu na ọkpụrụkpụ, ukwuu na ịgbado ọkụ mgbochi nchegbu na ukwuu mgbape uche. ③ oghere oghere: oghere
Nnukwu mmetụta mgbawa ka ukwuu. ④ Usoro ịgbado ọkụ: mgbawa mgbawa dị obere mgbe ejiri akwụkwọ ịgbado ọkụ arc, mana ka ukwuu mgbe ejiri mkpuchi mkpuchi CO2 gas.
Ụzọ iji gbochie mgbawa: ① Tupu ịgbado ọkụ, mepee oghere V-ụdị, Y-ụdị ma ọ bụ nke X n'ọnọdụ ịgbado ọkụ nke mpempe akwụkwọ galvanized, wepụ ihe mkpuchi zinc n'akụkụ oghere site na oxyacetylene ma ọ bụ ịgbawa ájá, wee chịkwaa ọdịiche ahụ ka ọ ghara buru ibu, n'ozuzu, ihe dịka 1.5mm. ② Họrọ ihe ịgbado ọkụ nwere ọdịnaya Si dị ala. A ga-eji waya ịgbado ọkụ nwere obere Si ọdịnaya maka ịgbado ọkụ gas, na ụdị titanium na titanium-calcium ụdị ịgbado ọkụ ga-eji maka ịgbado ọkụ akwụkwọ.
(2) Stomata
The zinc oyi akwa nso uzo ga oxidize (ụdị ZnO) na evaporate n'okpuru edinam nke aak okpomọkụ, na emit na-acha ọcha anwụrụ ọkụ na uzuoku, n'ihi ya, ọ dị nnọọ mfe ime ka pores na weld. Ka ukwuu nke ịgbado ọkụ ugbu a bụ, ka njọ nke zinc evaporation bụ na ukwuu nke porosity uche bụ. Ọ dịghị mfe ịmepụta pores na etiti dị ugbu a mgbe ị na-eji ụdị titanium na titanium-calcium ụdị na-egbuke egbuke maka ịgbado ọkụ. Otú ọ dị, mgbe ụdị cellulose na obere hydrogen ụdị electrodes na-eji maka ịgbado ọkụ, pores dị mfe ime n'okpuru ala ugbu a na elu ugbu a. Na mgbakwunye, a ga-achịkwa akụkụ electrode n'ime 30 ° ~ 70 Celsius ka o kwere mee.
(3) Zinc evaporation na anwụrụ ọkụ
Mgbe galvanized efere efere na-welded site electric arc ịgbado ọkụ, na zinc oyi akwa n'akụkụ ọdọ mmiri a wụrụ awụ na-oxidized na ZnO na evaporated n'okpuru omume nke arc okpomọkụ, na-akpụ a nnukwu ego nke anwụrụ ọkụ. Isi ihe dị n'ụdị anwụrụ ọkụ a bụ ZnO, nke nwere mmetụta na-akpali akpali na akụkụ akụkụ iku ume ndị ọrụ. Ya mere, a ga-emerịrị usoro ikuku nke ọma n'oge ịgbado ọkụ. N'okpuru otu nkọwa ịgbado ọkụ, ọnụ ọgụgụ anwụrụ ọkụ na-emepụta site na ịgbado ọkụ na titanium oxide ụdị electrode dị ala, ebe ọnụ ọgụgụ anwụrụ ọkụ na-emepụta site na ịgbado ọkụ na obere hydrogen ụdị electrode dị ukwuu. (4) Ntinye oxide
Mgbe ịgbado ọkụ ugbu a bụ obere, ZnO kpụrụ na kpo oku usoro adịghị mfe ịgbapụ, nke dị mfe ime ka ZnO slag nsonye. ZnO kwụsiri ike na ebe mgbaze ya bụ 1800 ℃. Nnukwu ZnO gụnyere nwere mmetụta ọjọọ na weld plasticity. Mgbe a na-eji titanium oxide electrode, ZnO dị mma ma kesaa ya nke ọma, nke na-enwe mmetụta dị nta na plasticity na ike ike. Mgbe a na-eji ụdị cellulose ma ọ bụ hydrogen ụdị electrode, ZnO na weld na-ebuwanye ibu ma karịa, ọrụ weld adịghịkwa mma.