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Nozzle electron beam welding method

A technology of electron beam welding and nozzles, which is applied in the direction of electron beam welding equipment, welding equipment, metal processing equipment, etc., to achieve the effects of avoiding appearance defects, reducing welding deformation, and high energy density

Active Publication Date: 2016-02-10
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a nozzle electron beam welding method to improve the welding process and meet the flow requirements of the nozzle to be welded

Method used

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  • Nozzle electron beam welding method

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Embodiment Construction

[0042] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0043] refer to Figure 6 , a preferred embodiment of the present invention provides a nozzle electron beam welding method, comprising steps:

[0044] Step S100, putting the nozzle to be welded into the casing, and completing the assembly of the nozzle to be welded.

[0045] Since the size of the nozzle to be welded is too small, and the fit with the bottom hole of the casing is an interference fit, a conduit with a diameter of φ4mm is used as an auxiliary tooling, and the boss at the front end of the nozzle is inserted into the conduit hole, and then Align the bottom of the nozzle to be welded with the bottom hole of the casing, tap the conduit lightly, and put the nozzle to be welded into t...

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Abstract

The invention discloses a nozzle electron beam welding method. The method comprises the steps that a nozzle to be welded is installed in a receiver, so that assembling of the nozzle to be welded is completed; the assembled nozzle to be welded is installed on a welding clamp, and the included angle is set to be formed between the axial direction of the nozzle to be welded and the horizontal direction; the nozzle which is installed on the welding clamp and is to be welded is conveyed into a vacuum chamber, it is determined that the welding portion of an electron beam transmitting gun and the nozzle to be welded is arranged in a right-angle mode, and linkage of the X-axis and the Y-axis of a working table is utilized for completing welding of the nozzle to be welded. According to the method, the amount of steel for weld joint forming is effectively increased, and the appearance defect of weld joints is avoided; in the electron beam welding process, filler metal is not used, and the risks that due to the external filler metal, internal quality of the weld joints is poor, and the nozzle is blocked are avoided; weld heat input is controlled by controlling ascending and descending angles of beam currents in the electron beam welding process, welding deformation is reduced, the round welding track is achieved by driving linkage of the X-axis and the Y-axis of a numerically-controlled machine tool, and machining efficiency is high.

Description

technical field [0001] The invention relates to the welding field, in particular to a nozzle electron beam welding method. Background technique [0002] The lubricating oil nozzle 10 and the emergency nozzle 20 on the engine bearing casing 30, such as figure 1 and figure 2 As shown, it is a small nozzle with a height of 3.5mm, an outer diameter of φ4.6, and nozzle apertures of φ0.85 and φ1.15, which are connected to the inner wall of the casing 30 by welding, as image 3 , Figure 4 and Figure 5 shown. When the argon tungsten arc welding process is used, the welding arc is wide, the heat input covers a large area, and the metal melting area is wide. When welding a small nozzle, the deformation and melting area of ​​the nozzle after heating is large, which may easily cause the nozzle hole to be deformed or even blocked. Affects nozzle flow. Vacuum brazing process is adopted. The solder used in vacuum brazing melts and spreads during the soldering process. This chara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/06
CPCB23K15/06
Inventor 陈卫张明敏
Owner CHINA HANGFA SOUTH IND CO LTD
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