Preparation method of antibacterial stainless steel tableware

Abstract

The invention discloses a preparation method of multilayer antibacterial stainless steel tableware, and is suitable for preparing tableware such as a stainless steel panel, a stainless steel basin, ameal box and the like of which single face is in contact with food. A antibacterial stainless steel material for the tableware basically consists of a double-layer structure of steel forming a base body and steel forming a surface antibacterial layer, a double-layer composite material formed by metallurgical bonding of a base body material and a surface layer material is formed through a double-layer composite casting method, fixed-length shearing on a double-layer composite plate obtained through continuous casting is carried out to obtain a double-layer plate blank with the fixed length, thedouble-layer plate blank is rolled to obtain the antibacterial stainless steel material for the tableware, then a semi-finished product is obtained through heat treatment, rolling and stamping, afterantibacterial heat treatment on the semi-finished product is carried out, rough grinding and fine grinding are carried out, cleaning is carried out after the tableware is polished, and then drying and packaging are carried out to obtain a finished product. According to the preparation method of the multilayer antibacterial stainless steel tableware, the cost of the machining process is low, the thickness of the antibacterial layer is large; and the base body and the surface antibacterial layer are both made of stainless steel components, so that metallurgical bonding strength formed in the casting process is high, bonding is firm, abrasion resistance is achieved, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of tableware processing, in particular to a method for preparing antibacterial stainless steel tableware. Background technique [0002] Antibacterial materials have a long history of development. In BC, humans discovered that covering wounds with silver sheets could prevent infection and accelerate wound healing. In the 19th century, studies found that metals such as silver ions had an inhibitory effect on microorganisms. After entering the 20th century, the research on antibacterial materials has developed rapidly, and various antibacterial agents have been developed and applied to all aspects of life. [0003] In modern society, the requirements for public safety, health and quality of life are constantly improving. Therefore, various products with higher safety and health performance are also developing rapidly and being widely used. Among them, stainless steel materials are widely used in the food indu...

AI Technical Summary

Problems solved by technology

At present, the main types of antibacterial stainless steel are 1. Integral antibacterial stainless steel: that is, metal elements such as silver, copper, and zinc are added during the smelting process to make the surface and interior of the stainless steel have antibacterial properties at the same time. The problem with this preparation method is that it consumes more Metal elements such as silver, copper, zinc, etc., and for tableware, it is often only necessary to have antibacterial properties on its surface, and the overall antibacterial stainless steel will cause a considerable degree of waste

2. Surface-type antibacterial stainless steel: that is, a metal or non-metal antibacterial layer is formed on the surface of stainless steel by coating or infiltration. The antibacterial performance comes from the addition of metal antibacterial elements or photocatalytic antibacterial materials. It requires additional coating or infiltration process, which increases the processing flow and increases the production cost, and the problem of wear or shedding of the surface coating during long-term use has not been effectively solved

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