Galvanized ígwè ọkpọkọ, o nwere dual uru nke corrosion eguzogide na ogologo ọrụ ndụ, na price bụ dịtụ ala, ya mere ugbu a ojiji ọnụego na-na-elu na elu, ma ụfọdụ ọrụ adịghị aṅa ntị mgbe ịgbado ọkụ galvanized ọkpọkọ, O mere. ụfọdụ nsogbu na-enweghị isi, ya mere, olee nsogbu kwesịrị ịkwụ ụgwọ anya mgbe ịgbado ọkụ galvanized ọkpọkọ?
01 Ebe a na-eme ya bụ ịchafụ
A ghaghị ịchacha oyi akwa galvanized na weld, ma ọ bụghị ya, afụ, trachoma, ịgbado ọkụ ụgha, wdg ga-eme.Ọ ga-emekwa ka weld na-agbaji ma belata isi ike.
02 Njirimara ịgbado ọkụ nke galvanized ígwè
A na-ejikarị akwa zinc kpuchie ígwè galvanized n'èzí nke obere carbon ígwè, na galvanized oyi akwa na-adịkarị 20um oké.Zinc nwere ebe na-agbaze nke 419 Celsius C yana ebe isi ihe dị gburugburu 908 Celsius.N'oge ịgbado ọkụ, zinc na-agbaze ka ọ bụrụ mmiri mmiri nke na-ese n'elu ọdọ mmiri a wụrụ awụ ma ọ bụ na mgbọrọgwụ nke weld.Zinc nwere nnukwu solubility siri ike na ígwè, na mmiri mmiri zinc ga-emebi metal weld nke ọma n'akụkụ oke ọka, na zinc nwere ebe mgbaze dị ala ga-etolite "mkpụrụ mmiri mmiri".N'otu oge ahụ, zinc na ígwè nwere ike ịmepụta ogige intermetallic brittle, na usoro ndị a na-agbaji agbaji na-ebelata plasticity nke ígwè weld ma mee ka mgbawa dị n'okpuru ọrụ nke nrụgide nkwụsị.Ọ bụrụ na welded fillet welded, karịsịa fillet welds nke T-njikọ, banye n'ime cracks yikarịrị ka ọ ga-eme.Mgbe galvanized ígwè na-welded, na zinc oyi akwa na uzo elu na nsọtụ ga-oxidized, gbazee, evaporated na-acha ọcha anwụrụ ọkụ na uzuoku ga-volatilized n'okpuru edinam nke arc okpomọkụ, nke ga-adị mfe ime weld pores.ZnO nke emere n'ihi oxidation nwere ebe mgbaze dị elu, karịa ihe dịka 1800 Celsius.Ọ bụrụ na paramita dị ntakịrị n'oge usoro ịgbado ọkụ, ọ ga-eme ka nsonye ZnO slag, yana n'otu oge ahụ.Ebe ọ bụ na Zn na-aghọ deoxidizer.Mepụta FeO-MnO ma ọ bụ FeO-MnO-SiO2 obere agbaze oxide slag.Nke abuo, n'ihi evaporation nke zinc, a na-agbanwe nnukwu anwụrụ ọkụ na-acha ọcha, nke na-agbakasị ahụ ma na-emerụ ahụ mmadụ.Ya mere, a ga-ehichapụ oyi akwa galvanized na ebe ịgbado ọkụ ma tụfuo ya.
03 njikwa usoro ịgbado ọkụ
The tupu ịgbado ọkụ nkwadebe nke galvanized ígwè bụ otu ihe ahụ dị ka nke nkịtị ala-carbon ígwè.Ekwesiri ighota na uzo uzo na akwa galvanized di nso kwesiri iji nlezianya dozie ya.N'ihi penetration, uzo size kwesịrị ekwesị, n'ozuzu 60 ~ 65 °, na a ụfọdụ ọdịiche, n'ozuzu 1.5 ~ 2.5mm;iji belata penetration nke zinc n'ime weld, na galvanized uzo na uzo nwere ike ịbụ Solder mgbe oyi akwa wepụrụ.
Na-arụ ọrụ n'ezie, centralized beveling, ọ dịghị n'ọnụ ọnụ usoro nakweere maka centralized akara, na abụọ oyi akwa ịgbado ọkụ usoro ebelata ohere nke ezughị ezu penetration.Ekwesịrị ịhọrọ mkpanaka ịgbado ọkụ dị ka ihe ndabere nke ọkpọkọ galvanized si dị.Maka nchara carbon dị ala n'ozuzu, ọ na-abụkarị nhọrọ J422 n'ihi nlebara anya nke ịdị mfe nke ịrụ ọrụ.
Usoro ịgbado ọkụ: Mgbe ịgbado ọkụ mbụ oyi akwa weld onuete na multi-layer ịgbado ọkụ, na-agbalị agbaze zinc oyi akwa na-eme ka ọ vaporize, evaporate na gbanarị weld onuete, nke nwere ike ukwuu ibelata mmiri mmiri zinc fọdụrụ na weld onuete.Mgbe ịgbado ọkụ na fillet weld, na-agbalịkwa gbazee zinc oyi akwa na mbụ oyi akwa na-eme ka ọ vaporize na evaporate iji gbanarị weld.Usoro bụ ịkwaga njedebe nke electrode n'ihu banyere 5 ~ 7mm, mgbe akwa zinc Mgbe agbazechara, laghachi na ọnọdụ mbụ ma nọgide na-weld n'ihu.Maka ịgbado ọkụ kwụ ọtọ na ịgbado ọkụ kwụ ọtọ, ọ bụrụ na ejiri obere slag electrodes dị ka J427 mee ihe, ọchịchọ nke mbelata ga-adị obere;ọ bụrụ na ejiri teknụzụ njem njem na-aga azụ na azụ, enwere ike nweta ogo ịgbado ọkụ na-enweghị ntụpọ.
Oge nzipu: Mar-15-2023
