A manufacturing process of special guide rails for stacking freezers

Abstract

The invention discloses a manufacturing process of a special guide rail for a stacking refrigerator, which comprises the following specific steps: material selection, solid solution treatment, primary cold extrusion, secondary cold extrusion, material solid solution and finished product. Through the above method, the manufacturing process of the special guide rail for stacking refrigerators provided by the present invention uses stainless steel as the material to save costs, but the strength of stainless steel cannot be enhanced by hot rolling and other means, and the stainless steel material of the guide rail is strengthened by cold extrusion The surface hardness increases the wear resistance and prolongs the service life, thereby ensuring the quality of the product.

Description

technical field [0001] The invention relates to the field of refrigerator accessories, in particular to a manufacturing process of a special guide rail for stacked refrigerators. Background technique [0002] The freezer is a multi-purpose quick-freezing equipment with an automatic assembly line. The food produced is beef meatballs, fish meatballs, and mutton meatballs. The quick-freezing time and shelf life are long, and the market prospect is good. It has been many years since our country imported from the Netherlands through Taiwanese businessmen in 2008, and the equipment has been operating stably. China also started production in 2012 and put it into the market. [0003] However, the main components of the freezer are the transmission components. The guide rails and chains of the transmission components account for 70% of the technical part of the whole machine. The guide rails and chains are all imported. The cost is high, the freight is expensive, the time is long, t...

AI Technical Summary

Problems solved by technology

[0003] But the main part of the freezer is the transmission part. The guide rails and chains in the transmission parts account for 70% of the technical part of the whole machine. The guide rails and chains are all imported, the cost is high, the freight is expensive, the time is long, the procurement is inconvenient, and it is not easy to popularize and use.

The performance of the guide rails and chains developed by many domestic OEMs is far from the design requirements and the level of similar foreign products, thus affecting the quality of the products used in the whole machine

[0004] Most of the steel used in the current guide rails is produced by hot-rolling technology. Hot-rolled steel is easy to process and has good ductility, but its hardness and strength are low, the surface quality is poor, and surface oxidation, rust, and pitting will occur. , which cannot meet the customer's requirements for steel dimensional accuracy, plate shape and surface quality, and thinner thickness. At the same time, the cost of steel is high, and it is not easy to promote and use

Images