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±í1 TLPÁ¬½Ó¹¤ÒÕ²ÎÊý
Table 1 Parameters of TLP bonding
¹¤ÒÕ        ζÈT/¡æ        ʱ¼ät/min        ѹÁ¦P/MPa
        T1        T2        t1        t2       
1        1250        2        9
2        1230        3        9
3        1250        1230        1        2        9
2 ÊÔÑé½á¹ûÓë·ÖÎö
2.1½ÓÍ·ÐÔÄÜ
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ͼ1 µØÖÊ×ê¸ËTLPÁ¬½Óº¸·ìµÄºê¹ÛÐÎò
Fig.1 TLP bonded joint of geological drill pipe
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±í2 ½ÓÍ·Á¦Ñ§ÐÔÄÜ
Table 2 Mechanical properties of TLP bonded joints
¹¤ÒÕ        ¿¹À­Ç¿¶È¦Òb /MPa        ÍäÇú½Ç¦È/(¡ã)
1        880        0
2        785        0
3        890        180
×ê¸Ëº¸½Ó¼¼ÊõÒªÇó        >700        ¡Ý90
2.2½ÓÍ·×éÖ¯
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ͼ2  45MnMoB×ê¸Ë˲ʱҺÏàÀ©É¢º¸×éÖ¯
Fig.2 microstructures of 45MnMoB drill pipe joint by TLP bonding
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