Device and method for controlling shrinkage and deformation of fuel manifold welding
A fuel manifold, shrinkage deformation technology, applied in welding equipment, welding accessories, manufacturing tools, etc., can solve problems such as welding shrinkage deformation of the fuel manifold, and achieve the effects of good shrinkage deformation control, easy operation, and low cost.
Active Publication Date: 2021-11-16
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention aims to propose a device and method for controlling the shrinkage and deformation of the fuel main pipe welding to solve the technical bottleneck problem of the shrinkage deformation of the fuel main pipe welding
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0026] to reduce figure 1 The welding deformation of the fuel main pipe 5 shown requires a special deformation control device to limit the position of the fuel main pipe 5, such as Figure 4 As shown, it is a fixture for welding the fuel main pipe. The fixture includes a base. There are multiple sets of positioning pins 10 on the upper end of the base. Two sets of positioning pins 10 are arranged in the radial direction of the fuel main pipe 5. The ends of the positioning pins 10 are connected to the convex seat. 9, then the boss 9 is welded on the surface of the fuel manifold 5. The positioning seat 1 is installed on the upper end surface of the base, and it is located between two sets of positioning pins 10. The upper end surface of the positioning seat 1 is a stepped surface, including a first step plane 7, a second step plane 6 and a connecting ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a device and method for controlling welding shrinkage and deformation of a fuel main pipe. The device includes a positioning seat, a retaining pin and a pressing block. The upper end surface of the positioning seat is a stepped surface. There is a threaded hole on the top, the connecting surface connects the plane of the first step and the plane of the second step, and the connecting surface is located on the circumference corresponding to the difference in the outer diameter of the fuel main pipe; The sub-body is placed in the stop pin hole, and the head is above the first step plane; the pressing block is connected to the second step plane by bolts, and the length of the pressing block is greater than the length of the second step plane; the connecting line between the stop pin and the bolt is the same as The radial lines of the fuel main pipe coincide, and the radial distance from the stop pin to the center of the fuel main pipe is smaller than the radial distance from the bolt to the center of the fuel main pipe. The invention solves the technical bottleneck problem of welding shrinkage and deformation of the fuel main pipe.
Description
technical field [0001] The invention belongs to the technical field of afterburning fuel oil main pipe processing of aero-engines, in particular to a device and method for controlling welding deformation of the fuel main pipe. Background technique [0002] As one of the important components of the afterburner of the engine, the main function of the afterburner fuel manifold is to supply fuel to the afterburner; to increase the thrust of the engine in a short period of time; the performance indicators of the afterburner fuel manifold of the engine include flow rate, distribution, and injection direction . These three performance indicators directly affect the combustion efficiency of the engine afterburner and the temperature field during combustion. In order to maintain a uniform temperature field and avoid ablation of the rear parts caused by local high temperature, it is necessary to ensure that the flow rate, distribution and injection direction of the fuel main pipe are...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16B23K9/32B23K101/06
CPCB23K9/16B23K9/32B23K2101/06
Inventor 金良专蒲泽勇徐同辉项宇李正江郑忠俊陈姣朱家娴李其橙
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD