Da narkewa batu na tin

Tin - daya daga cikin na farko karafa da aka sani ga mutãne tun lokacin da. Tare da wannan karfe tun da bude ta hade ci gaban al'ummar dan Adam.

Tin, tare da azurfa, da tagulla, da zinariya, da Mercury, gubar da na baƙin ƙarfe zama da aka sani riga a prehistoric sau. Archaeological tono da kuma wasu littattafan tarihi binciken bayar da shawarar cewa mutane koya yadda za a samu da tin da dama shekara dubu da suka wuce. Na shi riga a lokacin da suka kasance sunã yi ado da kayayyakinsa, amma da karfe da aka quite tsada. Ambaton shi ake samu ko da a cikin ta farko kofe na Tsohon Alkawali.

A halin yanzu shi ne da aka sani tin a m tsari a matsayin wata silvery farin karfe. Mafi sau da yawa da shi ya auku a cikin nau'i na oxide fili (tin dutse). Da narkewa batu na tin yana dauke kasance daga ƙaskantattu karfe, game da shi, sauƙi narke abu na tin ores. Tin - ductile taushi karfe, da abar kulawa (. Forging, mirgina, machining, da dai sauransu) yana mai isasshe manyan musamman nauyi da yawa. Yana yana low thermal da lantarki watsin, kadan mai saukin kamuwa zuwa weathering.

A low yanayin zafi, da karfe ne ba kawai canji launi, amma kuma yiwuwa ga sabon abu na "tin kwaro". Wannan yana tare da halakar tin kayayyakin. Saboda haka, a cikin 1812, a karkashin tasirin da Rasha frosts a Faransa sojoji halakar pewter mashiga. Ganin cewa tin narkewa zafin jiki ne low isa ga smelting makera shi ne kullum sauki a cikin zane.

Tin - a rare karfe. Smelleded kafin shi daga tama, wadda aka kai tsaye a cikin sama ɓawon burodi. A yau yanayi na wadannan albarkatun akwai kadan, don haka na tin sarrafa fasahar ne quite rikitarwa, kuma lokaci-cinyewa.

All organotin placer tama da kuma gwada enrichment tsari, sa'an nan tattara Fed cikin kilns sa'an nan - a cikin narkewa daki. Bayan dumama, da karfe fara ya narke. Da narkewa batu na tin ne a cikin kewayon 232 digiri. A lokacin narkewa, ta amfani da juyi, slag kuma daban-daban Additives, samar da ake so sa da kuma ingancin littattafai.

Range fadi da isa tin aikace-aikace, da kashi ne yadu a yi amfani da daban-daban da masana'antu. By da muhimmancin da amfaninta, ya zama wani dabarun karfe, saboda shi damar da samuwar gami da daban-daban kayan, kuma sauqi ka aiwatar. Kuma, ba shakka, tana taka muhimmiyar rawa da kuma low narkewa zafin jiki na tin.

Tin ne wadanda ba mai guba, lalata resistant abu. Iizobretenny karshe karni Hanyar yin tinplate (tin sheet karfe cover Layer) kunna yi kafaffen kwantena da tsare kayayyakin abinci. Amfani da tinned baƙin ƙarfe ya sanya wani juyin juya halin da a masana'antun sarrafa kayayyakin abinci.

Da ikon ya jika sauran karafa da kuma low narkewa batu na gubar da kuma tin don samar da kunna fusible gami (solder). A amfani da wadannan gami damar gama daban-daban tsarin aka gyara da kuma kayayyakin gyara da hermetic hatimi.

Da ikon yi wasa da rawar da wani tin m Layer aka yi amfani da makaman nukiliya masana'antu. Haka kuma, a cikin zamani gilashin masana'antu da shi da ake amfani da polishing gilashi. Don wannan karshen, da makera pours ruwa taro na gilashi a wani akwati da zubi tin. Da yawan zafin jiki na solidification na tin a jinkirin sanyaya fara bayan gwamnatin rikon kwarya a ta ƙananan narkewa batu. A sakamakon cakuda da aka a cikin nau'i na tef farko ta shiga kiln, sa'an nan yankan rabo.

A babban bukatar a dukan lokaci yana amfani da wani gami da kuza, da tagulla - bronza.V old days kafin baƙin ƙarfe ya fita daga gare ta, don samar daban-daban kayayyakin har da makami. Lokacin da mutane koya game da ƙarfi, kuma da lalacewa-resistant halaye na tagulla, da aka yi amfani ga yi na bearings aiki a wuya yanayi da nauyi load.

Yau yana da wuya a sami wani fanni na mutum aiki, duk inda amfani da tin a m tsari ko a gami.