Enamel cutting tools for enamelled pipe fittings

Abstract

The invention discloses a porcelain glaze cutting tool for an enamel tube joint. The cutting tool is used for accurately controlling a porcelain glaze cutting thickness of the enamel tube joint, so that a corrosion resistance of the enamel tube joint is improved, and the service life of the enamel tube joint is prolonged. An end side, connected with a enamel inner container and the enamel pipe joint is provided with a step inner wall, and the step inner wall comprises an annular plane part and a hole wall part connected with the annular plane part; the porcelain glaze cutting tool comprises arotating handle, a limiting part, a positioning column and a cutting part which are connected in sequence, wherein the limiting part can be limited at the tail end of the enamel tube joint; the positioning column and a inner barrel wall of the enamel tube joint are coaxially positioned and assembled; the cutting part comprises a first cutting knife and a second cutting knife, wherein the first cutting knife is matched with the annular plane part; and the second cutting knife is matched with the hole wall part.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an enamel cutting tool for enamel pipe joints. Background technique [0002] As water heaters are more and more accepted by users, users pay more and more attention to the service life of the water heater. The corrosion resistance of the water heater liner is an important indicator to determine the service life of the water heater. [0003] As a new type of water heater liner, enamel liner has good corrosion resistance and has always attracted the attention of the industry. The enamel inner tank of the water heater is usually connected with an enamel pipe joint for connecting with external pipelines. The end side of the enamel pipe joint and the enamel inner tank has a stepped inner wall. During the porcelain coating treatment, it is difficult to control the thickness of the enamel there. If the enamel is too thick, it will be difficult to assemble, and if the enamel is to...

AI Technical Summary

Problems solved by technology

The enamel liner of the water heater is usually connected with an enamel pipe joint used to connect with the external pipeline. The end side of the enamel pipe joint connected with the enamel liner has a stepped inner wall. During the enamel coating process, the thickness of the enamel at this place is difficult to control. If the enamel is too thick, it will cause difficulty in assembly, if the enamel is too thin, it will easily leak due to corrosion

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