Surface plasma treatment process for tooth roller of flour mill

Abstract

The invention discloses a surface plasma treatment process for a tooth roller of a flour mill. The surface plasma treatment process comprises the following steps of (1) surface polishing, (2) grease removing treatment, (3) washing treatment, (4) passivating treatment, (5) washing and drying and (6) plasma treatment. According to the surface plasma treatment process, the surface of the tooth roller is subjected to passivating treatment first, added modified nano diatomaceous earth and nano silicon dioxide improve the evenness, compactness and stability of a passivation film, and meanwhile a good antibacterial effect is achieved by the passivation film; plasma treatment is conducted after passivating treatment so that fusing of the passivation film and a substrate of the tooth roller can be improved and the hardness and the corrosion resistance of grinding teeth of the tooth roller can also be improved, and the finally the treated tooth roller has excellent strength, corrosion resistance and antibacterial and antirust performance. Compared with an existing tooth roller, the service life is prolonged by 10-12 times, flour yield is improved by about 30%, the power consumption of each ton of flour is reduced by 15-18 KW.h, and the economic benefit is obviously improved.

Description

technical field [0001] The invention relates to a processing technology of food machinery, in particular to a surface plasma treatment technology of gear rollers of a flour machine. Background technique [0002] Flour mill is the most important main equipment of flour mill, and grinding roller is the most important part of flour mill. From the structural point of view, grinding roller is usually divided into toothed roller and smooth roller. The applicable purposes of the two are different, and the effect is also different. Toothed rollers are mainly used for damaged materials, grinding damaged bran, etc. Smooth rollers are mainly used for separating fiber layer and endosperm particles to ensure the integrity of small bran flakes. The surface properties of grinding rollers, such as hardness, anti-oxidation and anti-rust performance, and wear resistance, have a significant impact on product quality and processing. However, the surface properties of most grinding rollers are p...

AI Technical Summary

Problems solved by technology

The surface properties of grinding rollers, such as hardness, anti-oxidation and anti-rust performance, and wear resistance, have a significant impact on product quality and processing. However, the surface properties of most grinding rollers are poor at present, which are not only easy to damage, high energy consumption, but also The powder extraction rate is low, which seriously affects the production efficiency, so it is one of the important tasks for those skilled in the art to develop a new process to improve the surface characteristics of the grinding roller