Anti-cracking pressure vessel and preparation method thereof

Abstract

The invention discloses an anti-cracking pressure vessel and a preparation method thereof. The pressure vessel comprises a vessel body and a micro-foaming elastomer layer, and the micro-foaming elastomer layer is directly attached to the inner wall of the vessel body, wherein the micro-foaming elastomer layer is of the following structure: a crust is formed on the surface, and the interior is filled with foam holes. Due to the fact that the micro-foaming elastomer layer encapsulates the interior of the vessel body, the micro-foaming elastomer layer can exert a good buffering effect when the pressure vessel is pressed, so that volume expansion caused by water freezing is counteracted, and normal use of the product at low temperature is guaranteed. Meanwhile, the micro-foaming elastomer layer is attached to the vessel body by using a secondary injection molding method, the preparation steps are simple and feasible, and large-scale production and utilization are well facilitated.

Description

technical field [0001] The invention relates to an anti-crack pressure container and a preparation method thereof. Background technique [0002] Pressure vessels are often subjected to changes in pressure due to changes in the volume of objects contained inside. When the pressure is high for a long time, it is easy to cause the pressure vessel to crack. For example, the shell of the filter element body of the filter is prone to cracking in winter. When the ambient temperature is below zero, the freezing of water will cause volume expansion, squeeze the body shell with less shrinkage, and cause the shell of the filter element body to crack. For this phenomenon , users often wrap the filter exposed in the air with cotton fabric or straw rope, which is not ideal in the north where the temperature is lower; some users add a sponge inside the filter to act as a buffer, but the sponge absorbs water , When the temperature is low, it is easy to freeze and freeze, and it cannot prot...

AI Technical Summary

Problems solved by technology

[0002] Pressure vessels are often subjected to changes in pressure due to changes in the volume of objects contained inside. When the pressure is high for a long time, it is easy to cause the pressure vessel to crack

For example, the shell of the filter element body of the filter is prone to cracking in winter. When the ambient temperature is below zero, the freezing of water will cause volume expansion, squeeze the body shell with less shrinkage, and cause the shell of the filter element body to crack. For this phenomenon , users often wrap the filter exposed in the air with cotton fabric or straw rope, which is not ideal in the north where the temperature is lower; some users add a sponge inside the filter to act as a buffer, but the sponge absorbs water , when the temperature is low, it is easy to freeze and freeze, and it has no protective effect

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