Abstract    This paper reviews existing studies and investigates thermal operational regimes of diamond bit during drilling operations. The operating temperature of the diamond core drill is studied under bench condition and an optimal thermal range are presented. Based on this study, it was noted that glazing of diamond tools is observed at temperatures less than 327°C, and normal wear of diamond tools is observed at temperatures within the range of 327- 660°C. Burning-in of diamond cores is accompanied by heating the matrix to temperatures above 800°C.

Keywords    Diamond Core Drill; Matrix; Fusible Inserts; Rock; Polishing

چکیده    این مقاله به بررسی مطالعات و یافته های علمی موجود می پردازد و همچنین رژیم های گرمایی در عملیات حفاری با استفاده از مته های الماسی را مورد بررسی قرار می دهد. دمای عملیاتی مته های حفاری در شرایط واقعی مورد بررسی قرار گرفتند و در نتیجه ی این بررسی بازه ی دماهای بهینه ارائه شده اند. نتایج نشان میدهند که صیقلی شدن الماس ها در ابزارهای مورد استفاده در دمای کمتر ازC ° 327 اتفاق می افتد، و همچنین حالت معمولی الماس ها در بازه ی دمایی C ° 327- C°660 مشاهده شده است. همچنین داده ها نشان می دهند که سوختن کامل هسته ی الماس زمانی رخ میدهد که دمای ماتریکس به بالای C ° 800 برسد.

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