阅读说明：本技术 管件的局部环绕式加热淬硬方法 (Local surrounding type heating hardening method for pipe fitting ) 是由 刘龙云 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种管件的局部环绕式加热淬硬方法,该局部环绕式加热淬硬方法包括：1)安装待淬硬管件至转动机构上,驱动其自转；2)将烧嘴调整就位,使得烧嘴能够位于加热淬硬区域左右移动；3)将分别设置于烧嘴左侧和右侧的第一喷水管和第二喷水管调整就位；4)开启烧嘴对管壁加热,当烧嘴向左移动时,第一喷水管和第二喷水管跟随移动,且第二喷水管喷水；当烧嘴向右移动时,第一喷水管和第二喷水管跟随移动,且第一喷水管喷水。该局部环绕式加热淬硬方法可以对管件实现局部加热淬硬。(The invention discloses a local surrounding type heating hardening method of a pipe fitting, which comprises the following steps: 1) installing the pipe fitting to be hardened on a rotating mechanism to drive the pipe fitting to rotate; 2) adjusting the burner in position so that the burner can move left and right in the heating hardening area; 3) adjusting a first spray pipe and a second spray pipe which are respectively arranged on the left side and the right side of the burner in position; 4) the burner is started to heat the pipe wall, when the burner moves leftwards, the first spray pipe and the second spray pipe move along with the burner, and the second spray pipe sprays water; when the burner moves rightwards, the first spray pipe and the second spray pipe move along with the movement, and the first spray pipe sprays water. The local surrounding type heating hardening method can realize local heating hardening on the pipe fitting.)

1. A method of localized circumferential heat hardening of a tubular member, the method comprising:

1) installing a pipe fitting (1) to be hardened on a rotating mechanism to drive the pipe fitting to rotate;

2) adjusting the burner (4) in position so that the burner (4) can move left and right in the heating hardening area (2);

3) adjusting a first spray pipe (3) and a second spray pipe (5) which are respectively arranged on the left side and the right side of the burner (4) in position;

4) the burner (4) is started to heat the pipe wall, when the burner (4) moves leftwards, the first water spray pipe (3) and the second water spray pipe (5) move along with the burner, and the second water spray pipe (5) sprays water;

when the burner (4) moves rightwards, the first water spray pipe (3) and the second water spray pipe (5) move along with the movement, and the first water spray pipe (3) sprays water.

2. The method of claim 1, wherein the burner (4) is a laser-heated burner (4).

3. The method of claim 1, wherein the burner (4), the first water jet (3) and the second water jet (5) are fixedly mounted on an electric slider capable of sliding left and right.

4. The method of claim 1, wherein in step 4), the burner (4), the first water jet (3) and the second water jet (5) are turned off after 5-10 turns of the pipe (1) to be hardened.

5. The method of local circumferential heat hardening of a pipe member according to claim 1, wherein in steps 2) -4), the burner (4), the first water jet (3) and the second water jet (5) are arranged in parallel.

6. The method of claim 1, wherein in the steps 2) to 4), the burner (4), the first water jet (3) and the second water jet (5) form an angle of 60 to 85 degrees with the pipe (1) to be hardened.

7. The method of local circumferential heat hardening of a tubular member according to claim 1, wherein in steps 2) -4), the outlets of the burner (4), the first water jet (3) and the second water jet (5) are positioned at the same vertical distance from the tubular member (1) to be hardened.

Technical Field

The invention relates to a local surrounding type heating hardening method for a pipe fitting.

Background

The heating hardening refers to that the mechanical property of the workpiece is improved by heating and then spraying water for quenching on the workpiece. At present, the heating hardening aims at plane local heating hardening or integral heating hardening, and the local surrounding type heating hardening of the pipe fitting cannot be finished.

Disclosure of Invention

The invention aims to provide a local surrounding type heating and hardening method for a pipe fitting, which can realize local heating and hardening for the pipe fitting.

In order to achieve the above object, the present invention provides a local surrounding type heat hardening method of a pipe member, the local surrounding type heat hardening method including: 1) installing the pipe fitting to be hardened on a rotating mechanism to drive the pipe fitting to rotate; 2) adjusting the burner in position so that the burner can move left and right in the heating hardening area; 3) adjusting a first spray pipe and a second spray pipe which are respectively arranged on the left side and the right side of the burner in position; 4) the burner is started to heat the pipe wall, when the burner moves leftwards, the first spray pipe and the second spray pipe move along with the burner, and the second spray pipe sprays water; when the burner moves rightwards, the first spray pipe and the second spray pipe move along with the movement, and the first spray pipe sprays water.

Preferably, the burner is a laser heating burner.

Preferably, the burner, the first spray pipe and the second spray pipe are all fixedly mounted on an electric slide block capable of sliding left and right.

Preferably, in the step 4), the burner, the first water spray pipe and the second water spray pipe are closed after the pipe to be hardened rotates for 5-10 circles.

Preferably, in the steps 2) to 4), the burner, the first water spray pipe and the second water spray pipe are arranged in parallel.

Preferably, in the steps 2) to 4), the burner, the first water spray pipe and the second water spray pipe form an included angle of 60-85 degrees with the pipe fitting to be hardened.

Preferably, in the steps 2) to 4), the outlets of the burner, the first water spray pipe and the second water spray pipe are positioned at the same vertical distance from the pipe to be hardened.

According to the technical scheme, the burner can be heated in a reciprocating mode around the pipe to be hardened by the aid of the left-and-right movement of the burner in the steps 1) to 4) in cooperation with the rotation of the pipe to be hardened, one of the first water spray pipe and the second water spray pipe starts water spraying and sprays water behind the burner to achieve the purpose of hardening, all heating hardening is achieved basically in a heating hardening area after the pipe to be hardened rotates for multiple circles, and a workpiece meeting conditions can be obtained.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the assembly of the pipe to be hardened, the burner, the first water jet and the second water jet.

Description of the reference numerals

1 pipe to be hardened 2 Heat hardening zone

3 first water spray pipe 4 burner

5 second water spray pipe

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.

Referring to fig. 1, a schematic view of an assembly of a pipe 1 to be hardened, a burner 4, a first spray pipe 3 and a second spray pipe 5, a partial encircling heat hardening method of the pipe, the partial encircling heat hardening method comprising: 1) installing the pipe fitting 1 to be hardened on a rotating mechanism to drive the pipe fitting to rotate; 2) adjusting the burner 4 in position so that the burner 4 can move left and right in the heating hardening area 2; 3) adjusting a first spray pipe 3 and a second spray pipe 5 which are respectively arranged on the left side and the right side of a burner 4 in position; 4) the burner 4 is started to heat the pipe wall, when the burner 4 moves leftwards, the first spray pipe 3 and the second spray pipe 5 move along with the movement, and the second spray pipe 5 sprays water; when the burner 4 moves rightward, the first and second water jets 3 and 5 follow the movement, and the first water jet 3 sprays water.

Through the implementation of the technical scheme, the burner 4 can be heated in a reciprocating manner around the pipe fitting 1 to be hardened by the left-right movement of the burner 4 in the steps 1) to 4) in cooperation with the rotation of the pipe fitting 1 to be hardened, one of the first spray pipe 3 and the second spray pipe 5 starts spraying water and sprays water behind the burner 4 to achieve the hardening purpose, the heating hardening area 2 basically achieves full heating hardening after the pipe fitting 1 to be hardened rotates for multiple circles, and a workpiece meeting the conditions can be obtained.

In this embodiment, in order to further improve the heating effect, the burner 4 is preferably a laser heating burner 4.

In this embodiment, in order to further provide a carrier on which the burner 4, the first water jet 3, and the second water jet 5 are mounted and drive the burner 4, the first water jet 3, and the second water jet 5 to move synchronously, it is preferable that the burner 4, the first water jet 3, and the second water jet 5 are fixedly mounted on an electric slider that can slide left and right. The electric sliding block is positioned on the sliding rail to slide.

In this embodiment, according to the pipe member to be hardened 1 having different diameters, it is preferable that the burner 4, the first water jet 3 and the second water jet 5 are turned off after 5 to 10 turns of the pipe member to be hardened 1 in step 4).

In this embodiment, in order to further optimize the heating and quenching operation, it is preferable that the burner 4, the first water jet 3, and the second water jet 5 are arranged in parallel in steps 2) to 4).

In this embodiment, in order to further optimize the heating and quenching operation, it is preferable that the burner 4, the first water jet 3, and the second water jet 5 form an angle of 60 to 85 ° with the pipe member 1 to be hardened in steps 2) to 4).

In this embodiment, in order to further optimize the heat quenching operation, it is preferable that the outlet positions of the burner 4, the first water jet 3 and the second water jet 5 are at the same vertical distance from the pipe member 1 to be hardened in steps 2) to 4).

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.