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A kind of manufacturing method of airtight partition wall
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A manufacturing method and air-tight technology, applied in manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of low single-piece processing qualification rate, difficult to complete insertion, and high matching tolerance requirements, so as to improve production efficiency and product quality. The effect of quality, cost and man-hour saving, and reduction of processing difficulty
Active Publication Date: 2020-05-22
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
In order to ensure the flatness after mating, when processing planes and sockets in a single piece, the plugging clearance is extremely high, and it is difficult to formulate the processing tolerances of the airtight wallboard sockets. The tolerance is too loose, and the plugging of the panels and profiles cannot be guaranteed. The gap is not conducive to friction stir welding; the tolerance requirements are too strict, and it is difficult to complete the plug-in connection due to the restriction of the flatness, twist and internal stress of a single piece of raw material. Low, need to be reworked or scrapped constantly
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Embodiment 1
[0032] Such as figure 1 Shown, a kind of manufacturing method of airtight partition wall, comprises the following steps:
[0033] Step 1: Matching and processing the individual airtight wall panels to form a mating plug-in structure;
[0034] Step 2, assembling a plurality of individual airtight wall panels through the plug-in structure to form an airtight wall panel assembly 1;
[0035] Step 3, integrally process one side of the airtight wall panel assembly 1 to form a plane A;
[0036] Step 4, welding the connection gap on the plane A;
[0037] Step 5, turn over the airtight wall panel assembly, and weld the connection gap on the other side relative to the plane A;
[0038] Step 6: Carry out overall processing on the side welded in Step 5 to form plane B.
[0039] Preferably, the insertion structure includes a concave groove 100 and a convex platform 101, but the form of the insertion structure is not limited thereto.
[0040] The processing process of the first step in...
Embodiment 2
[0051] A method of manufacturing an airtight partition, comprising the steps of:
[0052] Step 1: Matching and processing the individual airtight wall panels to form a mating plug-in structure;
[0053] Step 2, assembling a plurality of individual airtight wall panels through the plug-in structure to form an airtight wall panel assembly 1;
[0054] Step 3, integrally process one side of the airtight wall panel assembly 1 to form a plane A;
[0055] Step 4, welding the connection gap on the plane A;
[0056] Step 5, performing overall processing on the other side relative to plane A to form plane B;
[0057] Step six, welding the connection gap on the plane B.
[0058] The difference between this embodiment and the first embodiment is that the surface B is processed first, and then welded. After the overall processing, the thickness of the surface B is reduced, which can further reduce the amount of welding deformation.
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Abstract
The invention relates to a manufacturing method of an airtight partition wall. The manufacturing method comprises the following steps of 1, carrying out matching and machining on airtight partition wall single pieces to form an inserting connection structure matched with each other; 2, assembling a plurality of the airtight partition wall single pieces together through an inserting connection structure to form an airtight wallboard assembly; 3, performing integral machining on one surface of the airtight wallboard assembly to form a plane A; 4, welding connection gaps on the plane A; 5, welding connecting gaps relative to the other surface of the plane A; and 6, performing integral machining on the surface which is welded in the step 5 to form a plane B. Or, the step 5 is to carry out integral machining on the other surface relative to the plane A to form the plane B, and the step 6 is to weld the connection gaps on the plane B. According to the manufacturing method of the airtight partition wall, the manufacturing speed and the manufacturing quality of the airtight partition wall are improved, and meanwhile manufacturing requirements can be met without adjusting and repairing thewhole process.
Description
technical field [0001] The invention relates to the manufacture of a sealing structure, in particular to a method for manufacturing an airtight partition wall. Background technique [0002] The airtight partition wall of the high-speed EMU is generally composed of four airtight wall panels, which need to be processed and friction stir welded to connect the four airtight wall panels into one. The conventional manufacturing process method is: single-piece processing plane and socket → plugging → friction stir welding → repairing. In order to ensure the flatness after mating, when processing planes and sockets in a single piece, the plugging clearance is extremely high, and it is difficult to formulate the processing tolerances of the airtight wallboard sockets. The tolerance is too loose, and the plugging of the panels and profiles cannot be guaranteed. The gap is not conducive to friction stir welding; the tolerance requirements are too strict, and it is difficult to complet...
Claims
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Application Information
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