Blueing

Bluing karfe - tsarin sunadarai amfani da shirya surface na karfe sassa a kan bakin ciki m film na oxides Fe3O4 baƙin ƙarfe. Sunan ya sami asali daga halayyar launi sassa bayan sarrafa (bluish-baki, hankaka), kuma aka sani da "blackening" ko "sinenie" in general, ko da kuwa da launi - "hadawan abu da iskar shaka". A sakamakon film passivates surface da kuma kare bangaren daga yanayi lalata da sauran effects na lalatattu kafofin watsa labarai.

Kafin yin burnishing karfe daki-daki, baya shirya, tsarkake daga tsatsa mechanically goge, degreased kuma pickled a wani acidic bayani. Degreasing iya zama wani sauran ƙarfi, ko barasa. Etching bukatar cire daga surface duk ba dole ba oxides, da barin danda karfe.

A mafi sauki hanyar - burnishing karfe da man fetur. Akwai daban-daban dabaru, amma ma'anar mai sauki ne: workpiece, wani bakin ciki Layer da man fetur, to, shi kamata a mai tsanani zuwa 300-350 ° C. Man shanu, gasa ta, ya fita a kan surface na oxide fim. Daga karo na farko da wani uniform shafi ba samu, don haka aiwatar an maimaita har da ake so sakamakon. Yana da muhimmanci a cimma uniform dumama, in ba haka ba da fim zai tafi spots, kuma ba overheat sassa, kamar yadda zai iya deform ko za a sake. Mutane da yawa mutane suke yin kuskuren da sauke abu a wani preheated mai, shi ne daidai ba. Ya kamata ya zama daidai gaban: na farko, to shafa, sa'an nan Warming. Mai amfani da wani, daga sunflower ga watsa ko engine. Irin wannan bluing karfe yana da wani low shafi ƙarfi. Shi ne kawai inganci a cikin ado da kuma m dalilai.

Bluing karfe amfani da baƙin ƙarfe sulphate, ferric chloride, kuma nitric acid

A saboda wannan dalili, da lita na ruwa da ake bukata ta soke 15 g na baƙin ƙarfe sulphate da 30 g na 10 g na acid. A samfurin da aka saukar a cikin bayani za a kafa m shafi, shi wajibi ne daga lokaci zuwa lokaci cire buroshi da kuma tsoma ci gaba har sai da ake so launi na oxide fim. Yanzu kusan kowane gari akwai wani kantin sayar da cewa sayar da magunguna, don haka don samun su ne mun gwada da sauki.

Bluing karfe amfani da potassium bichromate (potassium dichromate). A saboda wannan dalili, da lita na ruwa diluted da 200 grams na potassium bichromate da aka nutsa cikin zurfin da mafita ga 20-30 minti abu. Bayan kau daga cikin bayani sa'an nan a bushe a high yanayin zafi (a cikin tanda ko a kan garwashin). A tsari an maimaita har wani uniform blue-baki launi. To shafa da yanki na oiled zane. Chrompick - reagent ne sosai na kowa, shi da ake amfani a cikin fata masana'antu.

Domin bluing gun ganga aka haxa karkashin dumama 1 part da nauyin antimony trichloride tare 3 sassa man zaitun. A cakuda da aka to, shafi abu da kuma yarda ka tsaya ga wata rana. A tsari an maimaita 10-12 sau, bayan da ganga an wanke, bushe da goge. Launi ne greenish ruwan kasa.

Kamar yadda ake gani, daga sama, burnishing karfe a gida - quite m da kuma sauki tsari. Yana za a iya amfani da wani kayayyakin da aka yi da karfe a lokuta inda wasu hanyoyin na lalata kariya, kamar fenti, ba m.