Ukwethulwa kongqimba lwe-Dacromet olungenayo i-chromium olonga amandla futhi olulungele imvelo ngokwengeziwe

Isikhathi sokushicilelwa:

2024-12-27

IDacromet yigama elithathelwe esiNgisini, abemboni abalifushanisa ngokuthi Dacromet noma Dacrorust. EChina ibizwa ngopende we-zinc-chromium, uhlobo olusha lokuvikela ukugqwala olwenziwe ikakhulukazi ngempuphu ye-zinc, ye-aluminium, i-chromic acid namanzi asuswe ama-ion.

IDacromet yigama elithathelwe esiNgisini, abemboni abalifushanisa ngokuthi Dacromet noma Dacrorust. EChina ibizwa ngopende we-zinc-chromium, uhlobo olusha lokuvikela ukugqwala olwenziwe ikakhulukazi ngempuphu ye-zinc, ye-aluminium, i-chromic acid namanzi asuswe ama-ion. Ukuvikela kwayo kunezinto ezintathu: okokuqala, umgoqo—amacwecwe e-zinc ne-aluminium agqagqene avimba amanzi, umoya-mpilo nezinye izinto ezigqwalayo ukufinyelela ensimbini; okwesibili, i-passivation—i-chromic acid isabela nempuphu ye-zinc, ye-aluminium nesisekelo yakhe ifilimu eminyene emelana nokugqwala; okwesithathu, ukuvikela kwe-cathodic—umsebenzi obaluleke kakhulu wongqimba lwe-zinc-aluminium-chromium ukuvikela isisekelo njenge-zinc plating. Uma iqhathaniswa ne-electroplating evamile, ingabizwa “i-electroplating eluhlaza”, inezinzuzo zokumelana kakhulu nokugqwala, ukungabangeli ukuba buthakathaka nge-hydrogen, ukumelana nokushisa, ukungena kahle, ukunamathela nokupendeka futhi, ukungangcolisi nokungalimazi. Nokho, lokhu kungalimazi kusho kuphela ukuthi ekukhiqizeni akukho gesi noma amanzi angcolile futhi akudingeki ukuphatha izinhlobo ezintathu zemfucuza, akusho ukungalimazi ngokuphelele. Upende une-chromium enobuthi, ebangela umdlavuza kubantu, futhi ilimaza izitshalo nama-microorganism. Ngakho upende we-Dacromet ongenayo i-chromium uyisidingo samanje nesakusasa, ukuze kwehliswe noma kugwenywe umonakalo wemvelo nowabantu.

Ukuze kuncishiswe noma kususwe i-chromium ngangokunokwenzeka kugcinwe izici eziyisisekelo zongqimba lwe-Dacromet futhi kuncishiswe ubungozi balo, ochwepheshe bahlinzeka ngohlobo olusha longqimba lwe-Dacromet olungenayo i-chromium. Lokhu kufezwa ngalolu hlelo lobuchwepheshe: ungqimba olusha lwe-Dacromet olungenayo i-chromium luhlanganisa impushana ye-zinc, impushana ye-aluminium, isincibilikisi, isengezo, isakhi songqimba kanye ne-tin. Amaphesenti esisindo sezingxenye zongqimba lwe-Dacromet athi: impushana ye-zinc 20-30%, impushana ye-aluminium 5-10%, isincibilikisi 20-30%, isengezo 5-10%, isakhi songqimba 10-10%. Ngokuningiliziwe, ungqimba lwe-Dacromet lunezingxenye ezilandelayo ngokwamaphesenti esisindo: impushana ye-zinc 20-30%, impushana ye-aluminium 5-10%, diethylene glycol butyl ether 20-30%, n-butanol 5-10%, inorganic resin 10-20%, tin 5-10%. Isincibilikisi yi-diethylene glycol butyl ether. Isengezo yi-n-butanol. Isakhi songqimba yi-inorganic resin. Impushana ye-zinc ingamapheshana anobubanzi obungu-5-25 micrometre. Impushana ye-aluminium ingamapheshana anobubanzi obungu-5-25 micrometre. I-inorganic resin ingeyezinga lokusetshenziswa ezimbonini.

Uma kuqhathaniswa nobuchwepheshe obukhona, lolu ngqimba olusha lwe-Dacromet olungenayo i-chromium lunezinzuzo ezilandelayo: ngenxa yokuthuthukiswa komklamo, i-tin nezinto ezakha ifilimu nezinye izithako zithatha indawo ye-chromic acid evamile, kugwenywe ubungozi be-chromium; futhi ngenxa yokuthi i-tin ngokwayo ayigqwali, imelana nokuhlaselwa okuvela ngaphandle futhi inokuguquguquka okuthile, ilungele ngokwengeziwe izinyathelo zokucutshungulwa kongqimba lwe-Dacromet; ngaphezu kwalokho, inhlaka engaphili nayo iyisithako esilungele imvelo, esinezindleko eziphansi nenani elikhulu lokusatshalaliswa.

Ikhasi eledlule

Yikuphi ukusetshenziswa okusha kobuchwepheshe bokulungisa ubuso bensimbi enkathini ye-Industry 4.0?

Yiziphi izinto ezithinta ukusebenza kahle kwemishini yokunameka ngogesi?

Ikhasi elilandelayo

Ikhasi eledlule:

Yikuphi ukusetshenziswa okusha kobuchwepheshe bokulungisa ubuso bensimbi enkathini ye-Industry 4.0?

Ikhasi elilandelayo:

Yiziphi izinto ezithinta ukusebenza kahle kwemishini yokunameka ngogesi?

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