High-strength anti-corrosive steel plate of heavy-duty storage rack and heat treatment technology of steel plate

Abstract

The invention relates to a high-strength anti-corrosive steel plate of a heavy-duty storage rack, which comprises the following components by mass percent: 0.45-0.49% of C, 0.27-0.29% of Mn, 2.8-3.9% of Cr, 0.18-0.21% of Si, 0.083-0.085% of Nb, 0.03-0.05% of V, 0.66-0.79% of Ti, 0.53-0.57% of Al, 0.09-0.15% of Cu, 0.13-0.15% of Mo, 0.035-0.043% of lanthanide rare earth, and the balance of Fe and inevitable impurities, wherein the lanthanide rare earth comprises the following components by mass percent: 4-11% of cerium, 5-10% of europium, 10-13% of terbium, 15-22% of gadolinium, 12-15% of praseodymium, 0-4% of holmium, 15-20% of erbium, and the balance of lanthanum. The steel plate has high corrosion resistance, high transverse yield strength and excellent low temperature toughness.

Description

technical field [0001] The invention relates to a steel plate and a preparation method thereof, in particular to a high-strength anti-corrosion steel plate for a heavy-duty shelf and a heat treatment process thereof. Background technique [0002] Storage equipment refers to the technical devices and tools that can meet the needs of storage and storage of goods. Storage equipment is the main symbol of the level of storage and logistics technology. Modern storage equipment reflects the development of modern storage and logistics technology. The shelf in the storage equipment is a relatively commonly used equipment. The shuttle car shelf is characterized by the fact that the forklift does not need to enter the roadway, which saves time, improves the safety of personnel and goods, and greatly improves the storage and retrieval efficiency of goods in the warehouse. Make full use of the warehouse space. About 80% to 85% of the space can be used, which is suitable for different typ...

AI Technical Summary

Problems solved by technology

The shelf in the storage equipment is a relatively commonly used equipment. The shuttle car shelf is characterized by the fact that the forklift does not need to enter the roadway, which saves time, improves the safety of personnel and goods, and greatly improves the storage and retrieval efficiency of goods in the warehouse. Make full use of the warehouse space. About 80% to 85% of the space can be used, which is suitable for different types of products and can be accessed flexibly in layers. Compared with the drive-in frame and the through frame, the structure is stable and the safety factor is high. It can realize first-in-first-out and first-in-last-out; The storage requirements of special materials, the use conditions and environment of shuttle car shelves are becoming more and more harsh, and the thickness requirements for steel plates are getting thicker and thicker. Transverse yield strength; in addition, especially when used to store some corrosive goods, the storage equipment often breaks in a short time due to the corrosion of the steel plate, which increases the storage cost; and in some cold regions, the shelf load-bearing The low-temperature toughness of the steel plate is not high, which often causes the storage equipment to break in a short time