Foodjx guide: After the study report zui, the following suggestions are proposed on how to avoid such a break: the selection of the chopping machine knife should be stainless steel, the common tool steel such as 9SiCr or 8MnSi is not suitable, and it is easy to be high hardness. Fatigue fracture and brittle fracture occur. It is not advisable to use ordinary tool steel plating to prevent contact contamination. The coating is brittle and easily peels off. Under the action of large stress, the coating is easily cracked, which causes pitting corrosion and becomes the root of the fracture.
Meat machining tools, especially chopping machine tools, are tools that work in high-speed rotation. Cracks or even breaks occur during use, causing great concern in the industry. To this end, Beijing Sinoman Tool Technology Co., Ltd. organized metal materials and failure analysis experts, carried out analysis and research on the physical tools of a factory fracture, using metal materials failure analysis and Other means, and presented an analysis report.
According to the research report, the fracture of the fractured blade was observed by scanning electron microscopy. The fracture of the blade showed fatigue fracture characteristics both macroscopically and microscopically, indicating that the blade was fatigue fracture failure. The fracture originates from a pitting pit on the back of the knife. Therefore, the blade is at the point of rot. Since the chrome layer is locally damaged or detached from the substrate and electrochemically corrodes the substrate to cause pitting corrosion pits, the use of the plating layer to prevent the tool from rusting may cause the tool to break.
After analyzing the material composition of the tool with the energy spectrometer, the measurement results are compared with GB1299-1985. The blade of the chopping machine is made of 8MnSi alloy tool steel.
Meat machining tools, especially chopping machine tools, are tools that work in high-speed rotation. Cracks or even breaks occur during use, causing great concern in the industry. To this end, Beijing Sinoman Tool Technology Co., Ltd. organized metal materials and failure analysis experts, carried out analysis and research on the physical tools of a factory fracture, using metal materials failure analysis and Other means, and presented an analysis report.
According to the research report, the fracture of the fractured blade was observed by scanning electron microscopy. The fracture of the blade showed fatigue fracture characteristics both macroscopically and microscopically, indicating that the blade was fatigue fracture failure. The fracture originates from a pitting pit on the back of the knife. Therefore, the blade is at the point of rot. Since the chrome layer is locally damaged or detached from the substrate and electrochemically corrodes the substrate to cause pitting corrosion pits, the use of the plating layer to prevent the tool from rusting may cause the tool to break.
After analyzing the material composition of the tool with the energy spectrometer, the measurement results are compared with GB1299-1985. The blade of the chopping machine is made of 8MnSi alloy tool steel.
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