Daawaynta ka hor iyo habka korantada

Sharaxaad Gaaban:

Dahaarka pretreatment waa diyaarinta dusha daahan ka hor daahan oo waa saldhigga habka daahan oo dhan.
Tayada pretreatment waxay si toos ah u saameeyaa tayada daahan oo dhan, sidaas darteed waa in aan fiiro gaar ah u.


Sharaxaada

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Sharaxaada Alaabta

Qalab kala duwan iyo alaabooyinkooda habka farsamaynta, gaadiidka, kaydinta, dusha sare waa sahlan tahay in la soo saaro ama
ku dheji walxaha shisheeye, sida mashiinka mashiinka, maqaarka oksaydhka, saliidda, iwm., wasakhooyinka dusha sare waxay saameyn doonaan cufnaanta dahaarka iyo xoogga isku xirnaanta ee matrixka. Dahaarka pretreatment ee mainThe Ujeedada waa in meesha laga saaro walxahan iyo in la sameeyo beddelka kiimikada dusha ku habboon si ay u bixiyaan shuruudaha Coating habboon ee substrate ah, si ay u kordhiyaan adhesion ee filimka, dheerayn nolosha adeegga filimka, Sii ciyaar buuxda si ay saamaynta ilaalinta iyo saamaynta qurxinta ee daahan.

Sidaa darteed, buufin waxa ku jira ka hor farsamaynta. Inta badan waxa ka mid ah dhinacyada soo socda:

Hoosudhaca ka hor daahan

Birta iyo qaybo ka mid ah habka kaydinta iyo gaadiidka si ay u isticmaalaan ilaalinta saliidda antirust, xaashida birta workpiece ee sawir saliid waa in la isticmaalaa marka cadaadis processing, qaybo waa in ay la xiriiraan emulsion marka machining, daaweynta kulaylku waxay la xiriiri kartaa saliid qaboojinta, marka qaybo ka mid ah inta badan waxay leeyihiin wasakh saliid iyo HanJi ee gacmaha hawlwadeenka, dufan ee qaybaha laakiin sidoo kale wasakhda sida had iyo jeer iyo boodhka isku qasan saliidda oo dhan, dhammaan noocyada kala duwan ee formation ma aha saliidda. laakiin sidoo kale waxay saameeyaan adhesion ee daahan qalajinta waxqabadka qurxinta iyo iska caabinta daxalka Shaxda 3-1 liiska pretreatment kala duwan ee saxan bir duuban qabow. Saamaynta daahan kathodic electrophoretic on caabbinta daxalka.

Fosfatinta

Phosphating waa hab fudud, la isku halayn karo, qiimo jaban oo ku habboon si aad u wanaajiso caabbinta daxalka ee daahan birta ah. Waxaa si weyn looga isticmaali jiray gudaha iyo dibadda, gaar ahaan dahaadhka baabuurta, kaas oo aad loo isticmaali jiray sannadihii u dambeeyay. Ku dhawaad ​​100% qaybaha saxanka khafiifka ah ee warshadaha baabuurta waa fosfat geeddi-socodka Phosphating loola jeedaa dusha biraha xiriir la xal acid ka kooban dihydrogen fosfate cusbada, falcelinta kiimikaad iyo abuuraa in xasiloonida dusha birta lakabka xuub unugyada inorganic inorganic ah oo aan milmayn ee habka daaweynta kiimikada dusha iyo filimka la soo saaray loo yaqaan filim fosfat.

Mabda'a filimka 'phosphate'

filimka phosphating wuxuu awooday inuu bixiyo saldhig aad u habboon oo loogu talagalay daaha rinjiga, waxaa sabab u ah saameynta soo socota:
1) Waxay siisaa nadiif, lebis, oogada dufanka la'aan ah iyada oo ku saleysan xaalufinta dhammaystiran
2) waxay wanaajisaa adhesion ee filimka organic in substrate ay sabab u tahay ficil jirka iyo kiimikaad Ma aha adag tahay in la fahmo in qaab-dhismeedka dalool ee fosfat film kordhinaysaa aagga dusha sare ee substrate ah, si meesha xidhiidhka ka dhexeeya laba u kordho u dhigma, iyo permeability faa'iido u dhexeeya labada lakab ee filimka la abuuray. Isla mar ahaantaana, isdhexgalka kiimikaad ee u dhexeeya resin aan saturated iyo crystal phosphate waxay sidoo kale kor u qaadaysaa xooggeeda xidhitaanka
3) waxay bixiyaan lakabka go'doon ee xasilloon oo aan fiicneyn, mar dhaawaca daahan, waxay leedahay doorka xakamaynta daxalka, gaar ahaan jeexitaanka anode Qodobka ugu horreeya ayaa inta badan la dayacay Kaliya si buuxda ugu fiican ee saliidda si loo sameeyo filim fosfat ah oo ku qanacsan sidaas darteed filimka fosfatka laftiisa ayaa ah saameynta ugu dareenka badan ee tiknoolajiyada pretreatment-ka ugu kalsoonaan karo.

Faahfaahinta Alaabta

02 ka hor daawayn xabbad qarxin 1000x1000
02a pretreatment iyo ed line 1000x1000
01b pretreatment daadisay 1000x1000

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