Laser shock peening device for high-pressure straight pipe and control method
A technology of laser shock strengthening and control method is applied in the field of high-pressure straight pipe processing, which can solve the problems of large usage, failure and short service life of high-pressure straight pipes.
Pending Publication Date: 2021-06-04
SANY PETROLEUM INTELLIGENT EQUIP CO LTD
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[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixe...
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Abstract
The invention relates to the technical field of high-pressure straight pipe machining, and provides a laser shock peening device for a high-pressure straight pipe and a control method. The laser shock peening device for the high-pressure straight pipe comprises a laser light emitting head, a water spraying head and a telescopic rotating mechanism, and the laser light emitting head is suitable for spraying laser beams to the high-pressure straight pipe with the inner wall provided with an absorbing layer; and the moving end of the telescopic rotating mechanism is connected with the laser light emitting head and the water spraying head. The telescopic rotating mechanism is suitable for driving the laser light emitting head and the water spraying head to move synchronously. The telescopic rotating mechanism works to drive the water spraying head and the laser light emitting head to move into the high-pressure straight pipe, the laser light emitting head is controlled by a laser device to emit laser beams to conduct laser lap joint impact on the inner wall of the high-pressure straight pipe, meanwhile water is sprayed to the peening position of the inner wall of the high-pressure straight pipe through the water spraying head to form a restraint layer, the inner surface layer of a high-pressure straight pipe element is subjected to plastic deformation, the residual stress peak value of the inner wall of the high-pressure straight pipe is reduced, so that the fatigue life of the high-pressure straight pipe is prolonged.
Description
technical field [0001] The invention relates to the technical field of high-pressure straight pipe processing, in particular to a laser shock peening device and control method for high-pressure straight pipe. Background technique [0002] High-pressure straight pipes are used a lot in oilfield well site construction, that is, the inner walls of high-pressure straight pipes are affected by erosion and corrosion for a long time, and their service life is short, and they often fail due to abrasive wear and erosion. The common inner wall treatment process is to increase the hardness through surface quenching, so as to achieve the purpose of prolonging the service life, but its effect is limited. Contents of the invention [0003] The problem solved by the invention is how to strengthen the high-pressure straight pipe so as to improve its fatigue life. [0004] In order to solve the above problems, the present invention provides a laser shock peening device for high-pressure s...
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IPC IPC(8): C21D10/00
CPCC21D10/005
Inventor 韩雨刘旭升王洋敬兴隆刘利军刘小鹏杨承志林小英
Owner SANY PETROLEUM INTELLIGENT EQUIP CO LTD