kachcha loha

kachcha loha ya 'pig aairan'

lauh ayask ko adhik kaarban vaale iaindhan (jaise kok ke saath pragalit karne par jo maadhayamik utpaad (intermediate product) banta hai use kachcha loha (Pig iron) kehte hain. ismein praay: choone ke patthar ko flaks ke roop mein prayog karte hain. indhan ke roop mein chaarakol aur enthraasaait bhi prayog kiye ja sakte hain. kachche lohe mein kaarban ki maatra bahut adhik hoti hai (praay: 3.5–4.5%). iske kaaran kachcha loha bahut bhangur (brittle) hota hai. ise veld bhi naheen kiya ja sakta. at: iska seedhe taur par bahut kam upayog hota hai.

vaatya bhatthi se kachcha loha hi niklata hai. vastut: 'kachcha loha' lauh, kaarban, silikn, mainganeej, fausforas aur gandhak ki mishradhaatu hai. yeh ek maadhyamik utpaad hai jiski aur prasanskaran karke anya utpaad banaaye jaate hain. anya cheejein banaane ke liye yeh ek 'kachcha maal' hai isi se iska 'pig aairan' naam pada hai.

vargeekaran

inhein bhi dekhein