Taw qhia rau qhov chaw sintered

Cov khoom siv tseem ceeb rau cov hlau ua haujlwm qhov chaw ua haujlwm yog hlau hmoov, uas loj hlob los ntawm Hoganas xyoo 1797 los ua kev txo qis cov hlau txhuam hmoov hlau nyob rau xyoo 1911 siv qhov cub tawg rau xyoo 2015, nrog ntau cov hmoov hlau ua lag luam tsim ntau hom hlau hmoov thoob ntiaj teb, nrog muag txog txog 850,000 t / a (tsis suav nrog Suav Teb Tuam Tshoj).

Raws li kev txheeb cais muaj, North America tau tsim txog 420,000 t cov hmoov hlau tsim hauv ib xyoos hauv 2015 (suav nrog 20,000 t ntawm cov pas nrig ua hmoov thiab 30,000 t rau lwm daim ntawv thov), nrog ob qhov siab thiab qis hauv 10 xyoo txij xyoo 2006 txog 2015, feem ntau vim yog nyiaj txiag hauv xyoo 2009; 40,000 (t ntawm cov hlau ua cov txheej txheem no yog 81%, lossis kwv yees li 149,000 t), txij xyoo 2004 txog 2015, 12 xyoos yog siab thiab qis, thaum xyoo 2009 tseem qis tshaj, tsuas yog 125,000 t; , tsuas yog 75,000 t; xyoo 2015, hlau hmoov tsim ntau hauv lwm cov cheeb tsam Asia yog 70,000 t nyob rau Kaus Lim Qab Teb, 40,000 t hauv Is Nrias teb, 30,000 t nyob rau Taiwan, 20,000 t nyob rau lwm lub teb chaws, thiab kwv yees li 253,000 t hauv Asia (tsis suav Suav).