Ngwọta maka nsogbu nkịtị na teepu ọla kọpa

1. Ihe ngwọta nke discoloration nketeepu ọla kọpa

(1) Jikwaa mkpokọta acid ngwọta n'oge pickling.N'ihe banyere ịsacha oyi akwa oxide n'elu eriri ọla kọpa a na-ekpochapụ, oke acid dị elu anaghị eme ihe ọ bụla.N'ụzọ megidere nke ahụ, ọ bụrụ na ịta ahụ dị oke elu, ihe fọdụrụ na acid a na-etinye n'elu elu nke eriri ọla kọpa adịghị mfe ịsacha, na mmetọ nke mmiri na-ehicha ihe na-eme ka ọ dịkwuo elu, na-ebute oke elu nke acid residual. mmiri na-ehicha ihe, nke na-eme ka eriri ọla kọpa ahụ dị ọcha mgbe ọ na-ehichapụ ihe na-adịkarị mfe ịchọta.Ya mere, mgbe ị na-ekpebi ntinye nke ngwọta pickling, a ga-agbaso ụkpụrụ ndị a: n'echiche na enwere ike ihicha oyi akwa oxide n'elu akwa ọla kọpa, a ga-ebelata ntinye uche dị ka o kwere mee.

(2) Jikwaa conductivity nke mmiri dị ọcha.Na-achịkwa conductivity nke mmiri dị ọcha, ya bụ, na-achịkwa ọdịnaya nke ihe ndị na-emerụ ahụ dị ka ion chloride na mmiri dị ọcha.N'ozuzu, ọ dị mma ijikwa conductivity n'okpuru 50uS / cm.

(3) Jikwaa conductivity nke na-ekpo ọkụ ihicha mmiri na passivating gị n'ụlọnga.Mmụba nke conductivity nke mmiri na-ekpo ọkụ na-ekpo ọkụ na passivator na-abịakarị site na acid residual nke eriri ọla kọpa na-agba ọsọ na-ebute.Ya mere, n'okpuru ọnọdụ nke ịhụ na àgwà nke mmiri dị ọcha na-eji ihicha, a na-achịkwa conductivity, ya bụ, a na-achịkwa ego acid fọdụrụnụ.Dị ka ọtụtụ nnwale, ọ dị mma ịchịkwa conductivity nke na-ekpo ọkụ ihicha mmiri na passivator na-n'okpuru 200uS / cm, karị.

(4) Gbaa mbọ hụ na eriri ọla kọpa akpọnwụwo.A na-eme akara nke ọma n'oghere ikuku nke ikuku ikuku, a na-eji dehumidifier na ihe mkpuchi ikuku na ngwaọrụ akara mpaghara iji chịkwaa iru mmiri na okpomọkụ n'oge a na-ekpuchi eriri ọla kọpa n'ime ebe ụfọdụ.

(5) Passivation na-eji ihe na-eme njem.Onye na-agafe agafe eji na ụlọ ọrụ anyị bụ: benzotriazole, ya bụ BTA (usoro ihe omimi: C6H5N3) dị ka onye na-agafe agafe.Omume egosila na ọ bụ ihe dị mma, nke akụ na ụba na nke bara uru.Mgbe teepu ọla kọpa na-agafe na ngwọta BTA, ihe nkiri oxide dị n'elu na-emeghachi omume na BTA iji mepụta mgbagwoju anya, nke na-echebe mkpụrụ osisi ọla kọpa.

2. Ihe ngwọta nke ọla kọpa warara shiee indentation

Iji gbochie ntinye nke nchicha ncha, ọ dị mkpa karịsịa ịhọrọ ọdịiche ezi uche dị n'etiti obosara dị n'èzí nke mma okirikiri na mgbanaka peeling roba dị ka ọkpụrụkpụ na ike nke warara;ike nke mgbanaka peeling roba na-emezu ihe achọrọ nke warara a ga-egbutu;Mgbe obosara nke warara ahụ dị ntakịrị, a ga-ahọrọ oke nke mma okirikiri ahụ nke ọma na obosara nke mgbanaka peeling roba kwesịrị ịbawanye.