Alxanka bir ah ku tuuray

Iron - waa, sida loo yaqaan, bir iyo daawaha carbon. content ee dambaysta ah waa in ay ka sii badan tahay boqolkiiba laba. Iyadoo ku xiran gobolka taas oo daawaha waa carbon, kala saaro cawl iyo cad noocyada kala duwan ee birta ee kabka. In foomka koowaad ee carbon waa qaab graphite, ee gobolka free, waxa go'aaminaya ay machinability wanaagsan. Tan iyo birta kabka cad, element this waxaa ku jira xaalad ah ku xidhay, oo aysan suuragal ahayn in Weld waa. At Warega of maaddadu ay tahay midabkeedu khafiif.

Sidee alxanka bir kabka? Bal aan ka bilowno xaqiiqda ah in wax this - ma ugu haboon daweynta noocan ah. Marka alxanka waxaa deforms iyo si fudud dildilaaca. Tan waxa u sabab qaab dhismeedka gaarka ah ee carbon ee ay jab. Moofo bir ah ee kabka, iyo sidoo kale kuwa soo maray gaadhista warbaahinta xoqe kala duwan, oo aan la welded karo. Tani, si kastaba ha ahaatee, waa noocyada ugu fiican in ay yihiin grained iyo ganaax midab cawlan iftiinka. bir alxanka leedahay dhibaato: caddeeyo oo ay sabab u tahay, dhacdo ee degaanka fulinta alxanka lakabka bir cad oo aan nafteeda amaahin si ay daaweynta lahayn, Sida hore u soo sheegnay, formation of dildilaaca; sii kordhaya danab aaga alxanka, biraha Weld balliga laga yaabaa in ay sabab u furan gubanayo carbon la formation isway-carbon dioxide. Sidaas darteed, habka this sababa badan oo dhibaato. Weli bir alxanka kabka waxaa loo isticmaalaa ilaa xad si ballaaran. Waxay leedahay saddex siyaabood oo waaweyn: qabow oo kulul semi.

First waa maqnaanshaha preheating. alxanka Cold bir ah ee kabka waa sameeyey bir, birta tuuri iyo biraha non-ferrous iyo electrodes Alloys sameeyey. Waxa ugu weyn ee la this - in ay ka fogaadaan kulaylka daran ee aaga kulaylka saameysey ah. Waayo, steel this electrodes isticmaalaya lakabka ugu horeeyay a koronto superposed dhexroor yar oo leh content a carbon yar, daahan dhuuban. Amperage xilligan la joogo waa in aan ka badnayn 90 amps. layers xiga waxaa superposed electrodes of dhexroor weyn, daahan waxaa laga yaabaa in sidoo kale khafiif ah ama qaro weyn.

Mid ka mid ah xukunka u muhiim ah - goysyada macdan ah u baahan tahay si aad u dalbato la sugneyd kulka-saamaysay heerkulka aaga kama badna lixdan degrees.

Haddii alxanka waa in la sameeyo qaybo muhiim ah, ka dibna waxaad isticmaali kartaa qalab gaar ah. Tani waxa loogu yeero vvertyshi - silsilado gaar ah, kuwaas oo loo sameeyey bir fudud. Ayaa qastigoodii - in link biraha Weld bir. Alxanka waxaa marka hore la sameeyaa, hareerahooda, ka dibna - in sidii caadiga ahayd. Marka waxaa lagama maarmaan ah in Weld wax ku ridaya cilladaha, dillaacyada iyo meelaha kale ee daciif ah, inta badan loo isticmaalaa electrodes of Alloys ku salaysan nickel ama naxaas laga sameeyey. Kor graphitization, waxay hortago ah ee aag ballaadhan of bleaching. bir alxanka guriga inta badan soo saaray hab qabow. Tani waxaa loo isticmaali karaa mid ka mid ah noocyada kala duwan ee electrodes kor ku xusan.

alxanka Hot bir ah ku lug kulaylinta workpiece ka hor ka hawlgala la. hab noocan oo kale ah hoos u danab ee qaab-dhismeedka biraha. Waayo, hab semi - waa a modified kulul. Waa bir ah graphitization iyo kuleylka guud ama deegaanka si ay heerkul ah qaarkood. Hababka waxaa loo isticmaalaa siyaabo kala duwan.

Haddii aad rabto in aad ka dhigi alxanka ee qaybo ka mid shakhsi ah oo bir ah iska tuur sameeyey, kaas oo kiiska isticmaalka habka alxanka qabow. Haddii shaqada waxaa lagu fuliyaa at warshadda, heer warshadeed, isticmaalaan habka kulul.