Production process for heat preservation vessel inner cavity heat-resistant glass or enamel coating layer

Abstract

The invention discloses a production process for a heat preservation vessel inner cavity heat-resistant glass or enamel coating layer; the production process comprises the following steps: step S1, selecting a heat preservation vessel blank made of a metal material, carrying out sandblasting operation on the surface of an inner cavity of the heat preservation vessel blank, and making the surface of the inner cavity of the heat preservation vessel blank form a rough surface; step S2, carrying out enamel spraying operation on the rough surface, to make glass or an enamel glaze sprayed on the rough surface of the heat preservation vessel; step S3, drying the glaze on the rough surface; step S4, placing the heat preservation vessel blank after drying on a bracket; step S5, carrying out sintering operation on the heat preservation vessel blank; and step S6, after completion of sintering, taking the heat preservation vessel blank down from the bracket to obtain the finished product. In the process, in the preparation process of a moisturizing vessel, after a glass layer or an enamel layer is formed on the surface of the inner cavity, the self chemical properties of the glass layer or the enamel layer are relatively stable, no corrosion condition is generated, at the same time, changes of thermal expansion and cold contraction are relatively small, and the finished product is suitable for use as a container such as a heat preservation cup.

Description

technical field [0001] The invention belongs to the field of production of inner cavities of heat preservation vessels, and in particular relates to a production process of heat-resistant glass and enamel coating in the inner cavity of heat preservation vessels. Background technique [0002] At present, when people are traveling or in winter, they usually carry a thermos cup to carry drinking water. Now ordinary thermos cups are made of plastic or stainless steel alloy. [0003] Although the plastic material is cheap and light in weight, it is easy to separate into some unhealthy substances when it encounters hot boiling water, which is not safe. At the same time, the thermal expansion and contraction performance of plastic is relatively strong. After long-term use, Sealing performance will be reduced. [0004] The disadvantage of the thermos cup made of stainless steel alloy is that when some carbonated drinks, alkaline drinks, and tea water are filled, for example, the a...

AI Technical Summary

Problems solved by technology

[0003] Although the plastic material is cheap and light in weight, it is easy to separate into some unhealthy substances when it encounters hot boiling water, which is not safe. At the same time, the thermal expansion and contraction performance of plastic is relatively strong. After long-term use, The sealing performance will be reduced

[0004] The disadvantage of the thermos cup made of stainless steel alloy is that when it is filled with carbonated beverages, alkaline beverages, and tea water, for example, the acid and alkali in it may corrode the stainless steel and easily produce metal ions

And after a long time of use, stainless steel cups are prone to rust, which affects the user's use effect