High-strength multi-style integral shaping, enclosing and manufacture method

Abstract

A high-strength integral enclosing method for tube end features that the tube end is instantaneously heated at high speed while a die is used synchronously to gradually thicken and shrink the tube end until it is enclosed. The thickness of enclosed tube end is several times greater than that of tube wall.

Description

Technical field: [0001] The present invention relates to a high-strength and multi-style integrated sealing of the pipe body and its manufacturing method. The nozzle of the pipe body is heated at high speed and molded synchronously with the mold, so that the nozzle gradually shrinks and thickens, and a suitable shape of the seal is formed. It can easily and quickly achieve the forming and sealing of high-strength nozzles. Background technique: [0002] At present, the common manufacturing method of pipe sealing, such as figure 1 As shown, it is tied to the nozzle 10 of the pipe body 1, and the sealing cover 11 is welded. In this way, the pipe body 1 can be applied to general hydraulic cylinders, pneumatic cylinders, and buffers, but this welding procedure is not only complicated and cumbersome, but also High manufacturing costs, poor quality after welding, inaccurate dimensions, and affect the appearance, the joints are prone to bubbles, resulting in poor air density and in...

AI Technical Summary

Problems solved by technology

[0002] At present, the common manufacturing method of pipe sealing, such as figure 1 As shown, it is tied to the nozzle 10 of the pipe body 1, and the sealing cover 11 is welded. In this way, the pipe body 1 can be applied to general hydraulic cylinders, pneumatic cylinders, and buffers, but this welding procedure is not only complicated and cumbersome, but also High manufacturing costs, poor quality after welding, inaccurate dimensions, and affect the appearance, the joints are prone to bubbles, resulting in poor air density and insufficient joint strength, unable to withstand strong pressure, easy to damage and fall off from the welding, and lose due function

Another kind of sealing adopts the method of rolling. As shown in Figure 2, the nozzle 20 of the pipe body 2 is placed between the upper and lower rollers 21, 22, and the upper and lower rollers 21, 22 are rotated to squeeze each other. , and the nozzle 20 is gradually deformed into an arc shape (such as image 3 As shown), and then close the entire nozzle 20, so that it can be integrally formed and closed. Only other processing methods can be completely sealed, and other multi-style shapes cannot be formed, which is still quite time-consuming in manufacture, and the structure after joining cannot be properly formed at the same time because the thickness of the nozzle 20 is consistent with the thickness of the pipe body 2. The temperature eliminates the internal stress, so that the arc of the nozzle 20 generates internal stress, so the pressure that this place can withstand is small, so it is easy to break and damage from here

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