Production process of integral drill pipe
Release time:
2022-01-19
The production process of integral drill pipe adopts the following steps:
The male buckle end is heated by medium frequency and roughened for the first time
2. Medium frequency heating, second forging and roughening
3. Grinding
4. Medium frequency heating, the third imperial rent thickening
5. Medium frequency heating, processing of the fourth locating end cover, primary embedding and thickening
6. Turn the workpiece
7. The female buckle end is heated by medium frequency and thickened for the first time
8. Medium frequency heating, second forging and roughening
9. Grinding
10. Medium frequency heating, the third Qin rough thickening
11. Grinding
12. Machining thread
The utility model is characterized in that the drill pipe joint and the drill pipe body of the integral drill pipe are directly connected by male and female buckles, and the thickened structure of the drill pipe body, the outer wall and the inner wall of the drill pipe joint are all integral thickened structures.
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