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A kind of preparation method of antibacterial stainless steel

An antibacterial stainless steel, 304 stainless steel technology, applied in ion implantation plating, metal material coating process, coating, etc., can solve the problems of substrate and coating shedding, etc., to improve hardness and corrosion resistance, strong antibacterial performance, The effect of fast heat transfer

Inactive Publication Date: 2017-07-28
惠州丰正不锈钢制品有限公司
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Problems solved by technology

[0003] "Antibacterial stainless steel composite steel plate and its manufacturing method" (publication number CN102260832A) discloses a method for preparing an antibacterial stainless steel coating on the surface of a carbon-based steel plate, which is to spray antibacterial stainless steel powder on the carbon-based steel plate, and then perform composite heat treatment, but This method has the risk of peeling off between the substrate and the coating

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  • A kind of preparation method of antibacterial stainless steel

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Embodiment Construction

[0024] In this embodiment, the evaporation time can be set freely between 170s and 340s.

[0025] 1. Prepare materials, 304 stainless steel and small pieces of materials pressed by silver powder.

[0026] 2. Use 400-mesh water abrasive paper to polish the stainless steel in parallel and vertical directions, repeat 3 times.

[0027] 3. Ultrasonic cleaning is performed on the polished stainless steel to remove oil stains.

[0028] 4. Use the evaporation device to vacuumize to 1.31×10 -3 The material made by vapor-depositing silver powder at a crucible temperature of 1470°C is pressed for 170s-340s, and a silver vapor-deposited layer is formed on the surface of 304 stainless steel.

[0029] 5. Take out the evaporated 304 stainless steel, and use a candle to thoroughly blacken the surface of the silver evaporated layer.

[0030] 6. Put 304 stainless steel into the laser cladding device and vacuumize to 1.2×10 -3 When the temperature is Pa, the argon protection is applied, and ...

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Abstract

The invention discloses a method for introducing silver serving as an antibacterial material to the surface of 304 stainless steel. The method comprises the steps of material preparing; evaporating; ultrasonic washing; sooting; laser cladding and the like and is a brand new method for introducing silver powder to the surface of 304 stainless steel. By using the method, the aim of achieving a relatively good antibacterial effect of the 304 stainless steel by using a relatively small quantity of silver is achieved, the antibacterial rate can be up to more than 95%, meanwhile, the corrosion resistance of the stainless steel is improved, and the thickness of a surface modified layer can be up to 520mu m.

Description

technical field [0001] The invention relates to introducing silver powder into stainless steel to endow it with antibacterial properties, and belongs to the field of surface modification. Background technique [0002] The use of stainless steel tableware is becoming more and more common. The hygiene of tableware is very important to users. Tableware that can kill bacteria is becoming more and more important in daily life. However, stainless steel itself has no antibacterial properties, and food placed in the tableware for a long time is likely to cause bacteria. Preparation of low-cost, high-performance antibacterial stainless steel has become an urgent problem to be solved. The invention introduces antibacterial material silver into the surface of 304 stainless steel, endows the 304 stainless steel with antibacterial performance and improves its corrosion resistance. [0003] "Antibacterial stainless steel composite steel plate and its manufacturing method" (publication n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/24C23C14/16C23C14/58
CPCC23C14/16C23C14/24C23C14/5813
Inventor 郑春燕
Owner 惠州丰正不锈钢制品有限公司
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