Oil pipe joint of numerical control lathe and thermal treatment process thereof
A technology of oil pipe joints and CNC lathes, which is applied in heat treatment furnaces, heat treatment equipment, pipes/pipe joints/pipe fittings, etc., can solve the problem of insufficient fatigue resistance and impact toughness, insufficient high tensile strength, and inability to resist fatigue and impact Fracture and other problems, to achieve high fatigue resistance and impact toughness, anti-fatigue and impact fracture effect
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[0010] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0011] As shown in the figure, the present invention includes a body and a heat treatment process. The upper end of the body is set as a cylindrical structure 1, the middle is set as an outer hexagonal structure 2, and the bottom is set as a toothed cylindrical structure 3. The middle upper part of the main body is set as a cylindrical through-hole structure, which is set as the first through-hole structure 5, and its lower part is also set as a cylindrical through-hole structure, which is set as the second through-hole structure 4, and its first through-hole structure 5 The outer diameter of the second through-hole structure 4 is larger than that of the second through-hole structure 4, and its heat treatment process is characterized in that it is cooled by immersing in a suitable quenching medium after being heated to austenitization.
[0012] When selecting...
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