研究了球团矿在氧化焙烧和还原过程中抗压强度的变化规律。通过焙烧试验得到了球团矿必要的焙烧温度。通过还原反应后的高温抗压强度研究估算了球团矿焙烧中必要的强度。使用可调气氛高温抗压试验机研究了相应球团矿在氧化焙烧过程中的强度变化规律。球团矿在焙烧过程中有一个强度大幅下降的特定温度。如果该温度高于必要的焙烧温度，焙烧工艺是可行的。
The Change of hot strength of iron ore pellets during oxidizing roasting and reduction was researched. Roasting experiments of pellets were made to get the necessary roast temperature and the necessary strength of pellets in shaft was estimated using simulation test.The strength variation of pellets during oxidizing roast was studied with a high temperature compressive tester with adjustable atmosphere. A critical temperature was found, at which the strength of pellets is severely dropped during the oxidizing roasting. If the necessary roast temperature is lower than it, the roasting in shaft is feasible. Otherwise, it is unfeasible.
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