Welding method for main fuel tube of engine

A fuel manifold and welding method technology, which is applied to the welding of engine fuel manifolds and the welding of fuel manifolds, can solve the problems of surface forming, poor welding quality, difficulty in post-weld operation and troubleshooting, and low welding pass rate, etc. The size and shape tolerances are easy to ensure, the welding deformation is easy to control, and the welding quality is good.

Active Publication Date: 2013-02-13
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

The method of welding the spray rod after forming the ring is adopted, because there are many welding places, the surface is formed, the welding quality is not good, there are internal defects exceeding the standard, and the welding pass rate is low; and welding is difficult, and post-welding operation and troubleshooting are more difficult, and repairing Large quantity, low production efficiency

Method used

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  • Welding method for main fuel tube of engine
  • Welding method for main fuel tube of engine

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] A welding method for an engine fuel oil main pipe, comprising the steps of:

[0019] Step 1: welding the boss 4 to the conduit 1;

[0020] Step 2: welding the hanger 3 to one end of the conduit 1;

[0021] Step 3: Weld the spray rod 2 to the convex seat 4 to form a small section of the main pipe, such as figure 2 shown;

[0022] Step 4: Weld the subsections of the main pipes welded on the convex seat 4, the hanging 3 and the spray bar 2 into a closed ring through the hanging 3, that is: the engine fuel main pipe, such as figure 1 shown.

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Abstract

The invention provides a welding method for a main fuel tube of an engine, and belongs to the technical field of manufacture of engines. The welding method is applied to welding of the main fuel tubes of various engines. The welding method for the main fuel tube of the engine, provided by the invention, is easy for removing faults and welding; the dimension and the form and location tolerance of the main tube welded by the method provided by the invention can be easily ensured; through the welding method, ideal welding forming and the welding quality can be achieved, and high production efficiency can be ensured. The welding method comprises steps of: welding a boss on a guide tube; welding a hanging part to one end of the guide tube; welding a spraying rod on the boss, so as to form a small main pipe section; and welding the small main tube sections on which the bosses, the hanging parts and the spraying rods are welded, so as to form a closed ring which is the main fuel tube of the engine.

Description

technical field [0001] The invention belongs to the technical field of engine manufacturing, and in particular relates to a welding method for fuel oil pipes of engines, which is applied to the welding of fuel oil pipes of various types of engines. Background technique [0002] Welding is widely used in engine manufacturing and occupies a very important position. The quality of welding directly affects the quality of the engine, so the formulation of welding process route - welding method is to select a reasonable welding sequence on the premise of ensuring and controlling product quality. The welding sequence is the key to formulating the welding process route. [0003] The engine fuel main pipe is made up of several small main pipe sections, and a closed ring is formed by hanging welding between each main pipe small section, and the fuel main pipe communicates with the oil inlet pipe. The small section of the main pipe includes a conduit on which a boss and a hanger are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02
Inventor 王英高浚杨晓东周京平潘宝山
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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