Metal tube seal process

Abstract

A metal tube seal process mainly resolves the problem that machining stainless steel tubes with large diameters wastes time and energy and is difficult to seal with the existing seal method of a metal pipe fitting port. The metal tube seal process is characterized by including the following process steps: a installing a metal tube (1) in clamping mode in an elastic clamping sleeve capable of rotating on a machine tool; b utilizing a no-cutting-edge tool (3) to extrude a port of the metal tube (1) in high rotation, extruding the port towards the center in the radial direction while moving outwards the no-cutting-edge tool (3) in the axial direction, forming a conical surface and then extruding the conical surface in the axial direction until the port of the metal tube (1) is completely sealed and integrated at a high temperature in melting mode; c utilizing a turning tool to machine the outer end face of the sealed port of the metal tube (1) to be flat. The metal tube seal process changes the previous machining method, achieves sealing the stainless steel tubes with large diameters, saves time and labor, and is simple in working procedures, low in cost, high in machining efficiency and flat and smooth in appearance.

Description

technical field [0001] The invention relates to a sealing method for a metal tube port, in particular to a metal tube sealing process. Background technique [0002] When producing hardware pendants (hereinafter referred to as pendants), in order to meet the requirements of performance and aesthetics, it is necessary to seal the ports of metal pipe fittings. The material of the pendant is generally made of copper, stainless steel, aluminum alloy, zinc alloy and other metals that are not easy to rust. In order to improve the processing efficiency, the ports of the metal pipe fittings are generally sealed on the instrument lathe. The end of the metal tube is softened by the heat generated by the friction between the metal tube and the edgeless tool, and at the same time, the end of the metal tube is deformed toward the center by the edgeless tool to squeeze the end of the metal tube and finally fused into a closed end. For small diameter For soft metals (such as copper, alumin...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the background technology, the present invention provides a metal pipe sealing process, which mainly solves the problems of time-consuming and labor-intensive sealing and difficult sealing when the existing metal pipe port sealing method is used to process stainless steel pipes with a slightly larger diameter. The previous processing method has been changed, and the sealing of stainless steel tubes with slightly larger diameters has been realized, which saves time and effort, simple process, low cost, high processing efficiency, and smooth appearance.

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