Ebisara na 2015-05-14Nke mbụ, ọdịdị ahụ:
Na ntugharị ìhè eke, na nlele anya gba ọtọ.Isi ụda zinc chromate mkpuchi kwesịrị ọlaọcha isi awọ, nwekwara ike nweta site mgbanwe nke ọzọ na agba, dị ka nwa.Ihe mkpuchi chromate Zinc kwesịrị ịdị na-aga n'ihu, mkpuchi enweghị nkebi, afụ, peeling, cracking, pitting, inclusions na ntụpọ ndị ọzọ.Mkpuchi kwesịrị ịbụ otu nke ukwuu, ọ nweghị ihe doro anya na mpaghara dị oke oke.Ihe mkpuchi ahụ ekwesịghị ịcha agba, ma na-enye ohere ka obere ntụpọ edo edo dị.
Nke abụọ, ego mkpuchi na mkpuchi mkpuchi nke ule:
Ọnụ ego mkpuchi mkpuchi nke ọkpụrụkpụ mkpuchi ma ọ bụ mkpuchi nke ọkwa dị iche iche kewara n'ime akara anọ, enwere ike iji ụzọ abụọ chọpụta:
1, dissolution-atụ usoro: sample arọ bụ ukwuu karịa 50g, na-ewe a nkenke 1mg itule na mbụ uka W1 (mg), sample enịm ke 70 ℃ ~ 80 ℃ nke 20% NaOH aqueous ngwọta, tetara 10min, zinc. mkpuchi chromium agbazewo kpamkpam.A na-ewepụ ihe nlele, jiri mmiri saa ya nke ọma ozugbo ihichachara, a na-agbaze mkpuchi ahụ, kwuru ọtụtụ ihe nlele mgbe W2 (mg).Ma gbakọọ ọnụ ọgụgụ nke elu nke ' workpiece S (dm2), dị ka usoro na-esonụ si gbakọọ mkpuchi ego nke mkpuchi nke W (mg / dm2):
W = (W1-W2) / S
2, usoro mikroskopu: pịa GB / T6462 chọrọ, na-eji anya microscope iji chọpụta ọkpụrụkpụ mkpuchi.
Nke atọ, ule ike adhesion:
N'iji usoro ule teepu, ike adhesion na-achọpụta mkpuchi chromate zinc na mkpụrụ, yana ule teepu dị ka GB / T5270-1985 chọrọ na ngalaba 1.4.Mgbe ule chọrọ enweghị ike peeled kwụsịrị mkpuchi si mkpụrụ, ma ọ bụ na-emeghe na njedebe, ma ikwe ka nrapado teepu discoloration na zinc, aluminum grains.
Nnwale na-eguzogide mmiri: A na-emikpu ihe atụ ahụ n'ime mmiri deionized 40 ℃ ± 1 ℃, na-aga n'ihu na-emikpu 240h, mgbe e wepụrụ ihe nlele ahụ ma mịrị amị na ụlọ okpomọkụ, mgbe ahụ, nyocha ike adhesion, nsonaazụ ule kwesịrị izute ihe achọrọ nke ike adhesion. nwale.Ekwesịrị ịme ule ike adhesion n'ime awa 2, ewepụrụ ihe nlere anya na post nke mmiri deionized.Mgbe ule na-eguzogide mmiri, mkpuchi ahụ enweghị ike ịkụcha ma ọ bụ mepee na njedebe site na mkpụrụ.
Oge nzipu: Jan-13-2022