A method for preventing quenching deformation of pipe joint parts
A quenching deformation and pipe joint technology, applied in the field of metallurgy, can solve the problems of inability to correct, difficult to guarantee parts grinding, and scrapped parts, etc., to achieve the effect of ensuring hardness and wear resistance, ensuring performance, and high production efficiency
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Embodiment 1
[0022] A method for preventing quenching deformation of pipe joint parts, the structure of the pipe joint parts is as follows figure 1 As shown, the method is realized by a pipe joint fixture, the pipe joint fixture is composed of a front section 1, a middle section 2 and a rear section 3, wherein the section of the front section 1 is a T-shaped hollow structure; The middle section 2 is a hollow ring structure, and 4 to 6 rectangular grooves 5 are evenly opened on the side wall of the hollow ring structure; the rear section 3 is a hollow cylinder structure, and a lifting through hole 4 is provided in the hollow cylinder, Used for hoisting the pipe joint fixture, the material of the pipe joint fixture is 1Cr18Ni9Ti, the hollow parts of the front section, the middle section and the rear section have the same inner diameter, and the structure of the pipe joint fixture is as follows figure 2 shown; the method includes:
[0023] Insert the pipe joint fixture into the inner hole o...
Embodiment 2
[0025] A method for preventing quenching deformation of pipe joint parts, the structure of the pipe joint parts is as follows figure 1 As shown, the method is realized by a pipe joint fixture, and the structure and material of the pipe joint fixture are the same as in Example 1; the method includes:
[0026] Insert the pipe joint fixture into the inner hole of the carburized pipe joint to support the carburized surface of the pipe joint, and ensure that the outer wall surface of the middle section is closely attached to the carburized surface of the pipe joint parts. After insertion, the pipe joint fixture have the same centerline as the fittings, such as image 3 As shown; the assembled pipe joints are quenched by composite isothermal quenching. The quenching process conditions are: heat preservation in a heating device with a temperature of 850°C for 45 minutes, and then transfer to a saltpeter tank with a temperature of 220°C for 15 minutes; The final assembled pipe joint ...
Embodiment 3
[0028] A method for preventing quenching deformation of pipe joint parts, the structure of the pipe joint parts is as follows figure 1 As shown, the method is realized by a pipe joint fixture, and the structure and material of the pipe joint fixture are the same as in Example 1; the method includes:
[0029] Insert the pipe joint fixture into the inner hole of the carburized pipe joint to support the carburized surface of the pipe joint, and ensure that the outer wall surface of the middle section is closely attached to the carburized surface of the pipe joint parts. After insertion, the pipe joint fixture have the same centerline as the fittings, such as image 3 As shown; the assembled pipe joints were quenched by compound isothermal quenching, and the quenching process conditions were: heat preservation in a heating device with a temperature of 850 °C for 40 min, and then transfer to a saltpeter tank with a temperature of 200 °C for 10 min; The final assembled pipe joint i...
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