Phosphating bụ usoro nke imepụta ihe nkiri mgbanwe kemịkalụ phosphate site na mmeghachi omume kemịkalụ na electrochemical, a na-akpọkwa ihe nkiri ngbanwe phosphate kpụrụ akpụ ihe nkiri phosphating. Ebumnuche bụ isi nke phosphating bụ iji chebe ihe mgbakwasị ụkwụ ma gbochie ígwè ahụ ka ọ ghara imebi ya ruo n'ókè ụfọdụ; A na-eji ya eme ihe maka priming tupu eserese iji meziwanye adhesion na corrosion resistance nke ihe nkiri agba; Ejiri iji belata mmanu ihe nkiri mmanụ n'oge usoro ọrụ oyi nke igwe.
Phosphating bụ usoro a na-ejikarị eme ihe tupu ọgwụgwọ. N'ụkpụrụ, ọ kwesịrị ịbụ nke ọgwụgwọ akpụkpọ ahụ ngbanwe kemịkalụ. Ọ bụrụhaala na a na-etinye ya na phosphating nke nchara nchara, a pụkwara itinye ọla ndị na-adịghị ferrous dị ka aluminom na zinc na phosphating. Usoro nke imikpu workpiece (ígwè, aluminum, ma ọ bụ zinc) na phosphating ngwọta (ụfọdụ acidic phosphate dabeere ngwọta) na idobe oyi akwa nke insoluble crystalline phosphate ntụgharị ihe nkiri n'elu na-akpọ phosphating.
Blackening bụ usoro a na-ahụkarị nke ọgwụgwọ okpomọkụ igwe. Ụkpụrụ bụ ịmepụta oyi akwa nke ihe nkiri oxide n'elu ígwè iji kewapụ ikuku ma nweta nzube nke mgbochi nchara. Mgbe ọdịdị ọdịdị chọrọ adịghị elu, a pụrụ iji ọgwụgwọ blackening mee ihe. N'elu akụkụ ígwè na-atụgharị oji, ụfọdụ n'ime ha na-akpọ acha anụnụ anụnụ. Ọgwụgwọ bluing bụ ọgwụgwọ elu kemịkal. Ọrụ ya bụ isi bụ ịmepụta ihe nkiri oxide dị ukwuu n'elu ihe ahụ, gbochie corrosion na nchara, ma melite nkwụsị nke workpiece. Naanị ọgwụgwọ elu agaghị emetụta nhazi ime. Ọ bụghị okpomọkụ ọgwụgwọ, ọ bụ fundamentally dị iche iche si quenching.
Igwe ike dị elu na-eji phosphating, nke nwekwara ike zere nsogbu mgbakasị hydrogen. Ya mere, bolts n'elu ọkwa 10.9 na ulo oru ubi n'ozuzu na-eji phosphating elu ọgwụgwọ. Blackening + mmanu bụ mkpuchi na-ewu ewu maka ngwakọ ụlọ ọrụ n'ihi na ọ dị ọnụ ala ma mara mma tupu eri mmanụ. N'ihi na ọ na-agba oji, ọ fọrọ nke nta ka ọ bụrụ na ọ nweghị ikike igbochi nchara, ya mere ọ ga-agba nchara ngwa ngwa na-enweghị mmanụ.
Maka ozi ndị ọzọ gbasara ntu drywall, biko kpọtụrụ anyị.
Oge nzipu: Jun-19-2023