Bowl-type washer and manufacturing method thereof

Abstract

The invention provides a bowl-type washer and a manufacturing method thereof and relates to the technical field of washers. The bowl-type washer comprises a rubber pad, a metal pad and a grid pad. One side of the rubber pad is provided with a rectangular groove, and the other side of the rubber pad is provided with a bowl-shaped groove. The grid pad is disposed on the internal bottom part of the rectangular groove. The grid pad is made of soft rubber material. The metal pad is fixedly arranged in the rectangular groove and is located on the upper side of the grid pad. The outer end side of the metal pad is flush with the outer end side of the rubber pad. The manufacturing method comprises the steps of respectively producing the above parts; padding the grid pad into the rectangular groove of the rubber pad, and filling a filler and a binder in the rectangular ground, wherein the binder is already ground into powders; pre-heating the metal pad, padding the pre-heated metal pad into the rectangular groove of the rubber pad to subject the pre-heated metal pad to thermo-compression formation, and quickly cooling in a mold after the formation process; warming up an obtained product after standing the product, wherein the temperature of the warming-up treatment is one third to one second of that of the thermo-compression formation treatment. The bowl-type washer is convenient to use, high in hardness, easily deformable, good in sealing performance, and high in flattening accuracy of end-to-side cooperation.

Description

Technical field: [0001] The invention relates to the technical field of gaskets, in particular to a bowl-shaped gasket and a production method thereof. Background technique: [0002] Bowl-shaped washer, the existing gasket used for this structure is a single rubber material or metal material, the rubber material has low hardness, is easy to deform, and has poor stability, while the single metal bowl-shaped washer can only be adjusted by pneumatic gaskets The role of metal gaskets, but not the effect of sealing, must be used in conjunction with the gasket. In addition, there will inevitably be a gap between the metal gasket and the gasket when the sleeve is sprayed, and the flatness of the end surface after matching is poor. Invention content: [0003] The technical problem to be solved by the present invention is to provide a bowl-shaped washer which is easy to use, has high hardness, is easy to deform, has good sealing performance, and has high flatness and precision of e...

AI Technical Summary

Problems solved by technology

[0002] Bowl-shaped washer, the existing gasket used for this structure is a single rubber material or metal material, the rubber material has low hardness, is easy to deform, and has poor stability, while the single metal bowl-shaped washer can only be adjusted by pneumatic gaskets It has the function of sealing instead of sealing. It must be used together with the gasket. In addition, when the metal gasket and the gasket are sprayed, there will inevitably be a gap between the two, and the flatness of the matching end surface is poor.

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