High alloy cutting tool steel for wood-working machine rotary cutter blades and hot processing process of high alloy cutting tool steel

Abstract

The invention provides high alloy cutting tool steel for wood-working machine rotary cutter blades and a hot processing process of the high alloy cutting tool steel. The cutting tool steel comprises the following components by weight percent: 0.58-0.69 percent of carbon, 0.75-0.95 percent of silicon, 0.35-0.55 percent of manganese, 7.20-8.20 percent of chromium, 0.2-0.40 percent of vanadium, 0.95-1.45 percent of tungsten, 1.55-1.90 percent of molybdenum, not greater than 0.030 percent of sulfur, not greater than 0.030 percent of phosphorus and the rest of iron. The alloy cutting tool steel has the advantages of high strength and toughness, high abrasion resistance, high hardness and good red hardness and can meet the requirements of slicing and rotatably cutting veneers. The cutting tool steel and other plate materials are combined in a high strength to perform hot processing; the performances of the cutting tool steel are played to the maximum through the processes of hot molecules infiltration, hot rolling pressing and secondary quenching; the hardness, the abrasive resistance and the strength and toughness of the cutting tool steel are further improved.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to a new technology for thermal processing of high-alloy cutting tool steel used for blades of woodworking machinery rotary cutters. Background technique [0002] The wood processing industry is constantly developing towards high technology, high energy saving, high production capacity, and high beautification, such as slicing or rotary cutting various hard and precious woods, such as rosewood, mahogany, zebra wood, oak, and my country's unique technology Wood, etc., producing high-grade log veneer plywood, high-grade log veneer composite wood board, high-grade log veneer nail solid wood board, technical veneer veneer, etc., the thickness of the processed veneer is 0.06-3.00mm. In order to realize the above-mentioned wood processing technology, it is required that the cutting tool is highly sharp, the wedge angle is small, and the cutting speed is high. Therefore, the choi...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem in the prior art that the cutting tool material used for planing and peeling wood is low in strength and wear resistance and cannot meet the needs of planing and peeling veneer, and to provide a cutting tool with high strength. High alloy cutting tool steel with good toughness, high wear resistance, high hardness and red hardness and its thermal processing technology

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