Casting method of hook body for rotary hook of ultra-deep well petroleum drilling machine lifting system
A technology for lifting systems and ultra-deep wells, which is applied in the field of casting of hook bodies for hooks used in the lifting system of ultra-deep well oil drilling rigs. It can solve the problems of low qualified rate of colored flaw detection at key parts of the hook body, so as to improve the qualified rate of flaw detection and improve economic benefits. , the effect of saving energy consumption
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[0044]Example 1
[0045]Using the method of the present invention, the DG450 hook hook body is made, and the picture number AC450003-02 produces a batch of sequence number 1847, 4-1856, a total of 2 pieces, the detection report number: BOMCO J76-MT-NR007-1901, BOMCO J75-UT-NR005 -1901 Federation of Sewage: Qualified.
[0046]Similarly, the sequence number is 4-1862, 4-1863, 4-1864, 4-1866, 4-1901, a total of 5 pieces, footwood report number: BOMCO J76-MT-NR028-1903, BOMCO J75-UT-NR017-1903 Sewage RESULTS: Qualified; Production sequence number is 2 pieces of Qa4-1903, QA4-1904, 4 cases: BOMCO J76-MT-NR014-1906, BOMCO J75-UT-NR005-1906, Sewage Results: Qualified; production sequence number QA4-1915, QA4-1916, QA4-1920 a total of 3 pieces, reflection report number: BOMCO J76-MT-NR007-1912, BOMCO J75-UT-NR003-1912, Sewage Results: Qualified; Production sequence is QA4-1924, Qa4-1926, QA4-1927, QA4-1928 total 4, foot refueling report number: BOMCO J76-MT-NR009-2002, BOMCO J75-UT-NR023-2002, fl...
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