dahaarka Electrophoreticwaxay la mid tahay hababka kale ee daahan. Qaybaha dahaarka leh waxay u baahan yihiin in dusha lagu daweeyo ka hor inta aan la damin. Daaweynta dusha sare waa shaqo muhiim ah oo u baahan in la qabto ka hor dahaadhka. Hababka daboolka kala duwan, walxaha kala duwan iyo xaaladooda dusha sare, markaa hababka daaweynta dusha loo baahan yahay iyo hababka ma aha isku mid. Ma aha oo kaliya hababka daaweynta dusha kala duwan iyo tayada daaweynta si dhab ah u saameeya tayada daahan, laakiin sidoo kale kharashka daaweynta dusha ayaa saameyn weyn ku leh. Sidaa darteed, marka aan fulineyno naqshad farsamo, waa in aan habka rakibaadda, walxaha iyo xaaladda dusha sare ee qaybaha dahaarka ah, iyo habka daaweynta dusha sare iyo habka leh dareen xooggan, saameyn daaweyn wanaagsan iyo qiimo jaban waa in la doortaa sida ugu macquulsan. .
Waa maxay sababta electrophoresis u leeyahay habka daaweynta ka hor?
Habka pretreatment ee electrophoresis, waxaa jira wadashaqeyn wadajir ah oo hoos u dhigista, ka saarista miridhku, fosfatinta, hagaajinta dusha sare iyo hababka kale. Waxaa la odhan karaa pretreatment waa lagama maarmaan in daahan electrophoretic, taas oo la xidhiidha xasiloonida ee qubeyska rinjiga electrophoretic ka dib electrophoresis iyo tayada filimka daahan on dusha workpiece ah.
Si loo helo adkaysiga iyo iska caabinta daxalka ee filimka daahan ee workpiece electrophoretic, daaweynta fosfooraska waxaa loo isticmaalaa sida pretreatment ee daahan. Daaweynta fosfooraska (sidoo kale loo yaqaan daaweynta kiimikaad fosfooraska) waa tignoolajiyada (filimka fosfatinta) oo adeegsata falcelinta (equilibrium) falcelinta phosphoric acid si ay u soo dedejiso cusbada birta fosfooraska ee aan milmi karin ee dusha sare ee substrates biraha la nadiifiyay (degreased). Shaqada filimka fosfooraska waa in la hagaajiyo adhesion iyo caabbinta daxalka ee filimka daahan (daahan elektrophoretic) oo lagu dabaqo.
Marka laga hadlayo adhesion, kiriimyada filimka fosfide ee la helay ayaa wax yar ku milmay dusha birta, iyo dhejinta muraayadaha ayaa fiican. Intaa waxaa dheer, aagga dusha sare ayaa kordhay sababtoo ah sinnaanta dusha sare ee kiristaalo badan, iyo adhesion ee filimka daahan ayaa la wanaajiyey. Kadibna, hagaajinta adhesion ee filimka dahaarka ah, faragelinta walxaha soo saara daxalka ayaa laga hortagayaa, caabbinta daxalka waa la wanaajiyay (gaar ahaan balaadhinta daxalka ee hoos yimaada filimka rinjiga waa laga hortagi karaa).
Dahaarka ayaa finan iyo miridhku ku soo bixi doona muddo gaaban gudaheed iyada oo aan fosfit la helin. Biyaha iyo hawada dhex mara filimka daahan waxay gaaraan dusha sare ee workpiece si ay u sameeyaan miridh cas oo bararaan filimka rinjiga. Biyaha iyo hawada dhex mara filimka daahan waxay gaaraan xaashida birta galvanized si ay u sameeyaan miridh cad, kaas oo sidoo kale la falgala filimka daahan si ay u sameeyaan saabuun bir ah. Dhowr jeer ayaa ka weyn, si filimka dahaadhka ah uu si xoog leh u kor u kaco. Filim phosphating ah waa filim aan milmi karin oo ka samaysan birta oogada falcelinta kiimikada. Sababtoo ah adhesion wanaagsan (jirka) iyo xasiloonida kiimikada, waxaa loola dhaqmaa sidii substrate daahan ka-hortagga miridhku waara.
Si loo helo filim fosfooreed heer sare ah oo xasilloon oo loo hubiyo in ay ku dheggan tahay iyo iska caabbinta daxalka, maaraynta ka-hortagga ka-hortagga waa mid aad muhiim u ah. Isla mar ahaantaana, waa lagama maarmaan in si fiican loo fahmo habka falcelinta aasaasiga ah iyo walxaha daaweynta fosfatka.
Waqtiga boostada: Jul-08-2022
