Impact-resistant and wear-resistant cutting edge alloy, cutting edge component and application

Abstract

The invention belongs to the technical field of cutting edge tools. The invention discloses an impact-resistant and wear-resistant cutting edge alloy. The impact-resistant and wear-resistant cutting edge alloy is prepared from vanadium carbide, chromium carbide, zirconium oxide, niobium carbide and iron. The invention further discloses an impact-resistant and wear-resistant cutting edge component.The impact-resistant and wear-resistant cutting edge component is composed of a base body and a cutting edge part made of the impact-resistant and wear-resistant cutting edge alloy. The invention further discloses application of the impact-resistant and wear-resistant cutting edge component. The impact-resistant and wear-resistant cutting edge component is applied to one of chisels, knives or axes. The hardness of a cutting edge of the cutting edge component can reach 58-62 HRC. Compared with a conventional cutting edge component, the impact resistance of the cutting edge of the cutting edgecomponent is improved by more than 5 times, and the sharpness keeping capacity is improved by more than 5 times.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to an impact-resistant and wear-resistant cutting edge alloy, a cutting edge component and its application. Background technique [0002] Edge tools such as wood chisels, machetes, and axes need to withstand high impact force during use while maintaining a high edge sharpness. In actual use, edges such as wood chisels often have edge chipping, Phenomena such as cutting edge blunting faster, laborious during actual use, reduce the service life of cutting edge parts. Practitioners often need to stop normal operations to sharpen the cutting edge, which undoubtedly increases the workload and reduces production efficiency. [0003] The cutting edge parts of cutting-edge tools are often made of high-carbon steel or high-alloy steel materials. Although the use of similar materials can improve the durability of cutting-edge tools to a certain extent, it cannot make the sharpness or i...

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Problems solved by technology

[0003] The cutting edge parts of cutting-edge tools are often made of high-carbon steel or high-alloy steel materials. Although the use of similar materials can improve the durability of cutting-edge tools to a certain extent, it cannot make the sharpness or impact resistance Satisfied, the current brand cutting edge tools on the market have dense jagged small gaps after 500 times of chiseling hardwood, and serious large gaps after 2000 chiseling of hardwood, and completely lose their use function

[0004] In view of the above-mentioned problems, certain improvements have been made in the prior art. The improvement methods in the prior art usually adopt the method of changing the shape of the cutting edge parts to improve the impact resistance of the cutting edge parts, but in the prior art The improvement only stops at the improvement of the shape or a certain degree of surface treatment. Although it can also improve the durability, because the substantial material of the cutting edge parts has not been improved, the degree of improvement is limited, and it is difficult to greatly improve the impact resistance of the cutting edge tools Durable properties such as wear resistance

[0005] Chinese patent announcement number CN107030813A disclosed a wooden chisel on August 11, 2017. The chisel body is provided with raised ribs protruding from the side surface of the chisel body to define the The maximum width of the chisel body perpendicular to the length direction, and the protruding ribs have a tangentially changing deflection relative to the length direction, so that they are wave-shaped in the length direction, which can be obtained by changing the shape of the wood chisel blade part. Improve the service life of its cutting edge parts, but such improvement is difficult to improve the wear resistance and impact resistance; Chinese patent announcement number CN107904385A disclosed a process and system for improving the life of cutting blades on April 13, 2018, including : Carry out heat treatment on the rough workpiece in vacuum state, which is specifically heat preservation at 1000°C for 2 hours and treatment at 300°C for 4 hours, then cool the workpiece to 30°C, and then pass liquid nitrogen to cool to -160°C and keep it for 12 Hours of cryogenic treatment, after heat treatment, grinding by vibration grinding to complete the manufacturing

By using a process method and system for improving the service life of cutting blades in the present invention, the heat treatment process of blank workpieces is effectively improved, and the hardness, strength, and toughness of the cutting blades manufactured after the improvement process are greatly improved, and the process is also improved. The cutting blade is cooled at low temperature to avoid high temperature in the cutting edge during processing, and to prevent the burning of the cutting edge due to high temperature. It has a simple structure and is easy to manufacture and install. The improvement is limited, and it is only suitable for edge knives that do not require large impact force. For edge knives that need to be used for chopping with high impact force, such as axes, chisels, etc., the improvement is very limited

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