Manufacturing equipment for metal wound gaskets

Abstract

The invention provides a manufacturing method for a metal spiral-wound gasket. The manufacturing method for the metal spiral-wound gasket is characterized by comprising the following steps that (1), an outer ring with flat upper and lower surfaces is taken and subjected to first deformation treatment, thus the outer ring is jacked up from the bottom to make the inner diameter of the top of the outer ring enlarge; and (2) an inner ring with flat upper and lower surfaces is taken and pressed into the outer ring from the expanded inner diameter on the top of the outer ring, and the upper and lower surfaces of the outer ring are restored to be flat. According to the manufacturing method for the metal spiral-wound gasket, in the installation process of the inner and outer rings, an annular bulge on the outer surface of a spiral-wound ring of an inner ring is not prone to become warped or crushed to be damaged. In addition, the invention further provides a manufacturing device for the metalspiral-wound gasket, wherein the manufacturing device for the metal spiral-wound gasket has good roughness and fineness on the product surface and high automation level.

Description

Technical field [0001] The invention relates to the technical field of metal wound gaskets, in particular to a manufacturing equipment of metal wound gaskets. Background technique [0002] Metal spiral wound gasket is a kind of sealing gasket widely used at present. It is a sealing element at the flange connection of steam pipelines and petroleum pipelines. The shape is generally circular, with or without internal and external reinforcement, internal reinforcement, external reinforcement, and internal and external reinforcement. Strengthen the four types, Figure 1, figure 2 A metal spiral wound gasket with inner and outer reinforcement rings is provided, which includes an outer ring 1a and an inner ring 2a. The inner ring 2a includes an inner reinforcement ring 3a and a winding ring 4a arranged outside the inner reinforcement ring 3a. The inner wall of the outer ring 1a is provided with an annular groove 5a, the outer surface of the winding ring 4a is provided with an annular pro...

AI Technical Summary

Problems solved by technology

[0003] In order to make the outer ring 1a and the inner ring 2a have good sealing performance, the outer diameter of the inner ring 2a is usually set to be 1.2mm larger than the inner diameter of the outer ring 1a, but the larger interference, plus the winding ring 4a itself is not A regular circle and a certain degree of elasticity, so that when the inner ring is driven into the outer ring by manual hammering, it is easy to cause the annular protrusion on the outer surface of the winding ring 4a to be crushed, or the winding ring 4a is warped, thereby It makes the installation more difficult, the production efficiency is lower, and affects the final sealing performance of the product, and the scrap rate is higher

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