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Novel high-vanadium W6+Co high-speed steel material and preparing method thereof

A high-speed steel, high-vanadium technology, applied in the field of steelmaking, can solve problems such as high price

Active Publication Date: 2020-09-01
浙江精瑞工模具有限公司
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Problems solved by technology

[0003] At present, high-speed steel with a hardness of 66±1HRC is often used in the preparation of cutting tools. The materials that can meet this demand in the world are tungsten-molybdenum high-speed steel M35 and molybdenum high-speed steel M42. Both materials contain high cobalt Elements are expensive, 2.5 times and 5 times that of M2 respectively

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  • Novel high-vanadium W6+Co high-speed steel material and preparing method thereof
  • Novel high-vanadium W6+Co high-speed steel material and preparing method thereof

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preparation example Construction

[0026] A preparation method of a novel high-vanadium W6+Co high-speed steel material, comprising the following steps:

[0027] S1. Raw material ratio: select raw materials according to the weight ratio of each element in high-speed steel. The high-speed steel material contains the following components according to mass percentage: C 1%, Si 0.3%, Mn 0.2%, P 0.01%, S 0.01% , Cr 3.80%, V2.45%, Mo 5.00%, W 6.00%, Co 1.80%, and the balance is Fe;

[0028] S2. Smelting: The raw materials are smelted into molten steel in a 10T vacuum induction furnace, combined with the LF refining process outside the furnace and VD vacuum degassing, the molten steel is cast and formed to obtain electroslag rods; % calcium silicon wire;

[0029] S3, electroslag remelting (ESR): electroslag rods are added to the remelting furnace to remelt the electroslag rods under vacuum conditions to obtain electroslag ingots;

[0030] S4, annealing and inspection: the electroslag ingot is treated by stress relie...

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Abstract

The invention provides a novel high-vanadium W6+Co high-speed steel material and a preparing method thereof, and belongs to the technical field of steel making. The novel high-vanadium W6+Co high-speed steel material comprises following components including, by mass percent, 1-1.07% of C, 0.3-0.4% of Si, 0.2-0.4% of Mn, smaller than or equal to 0.03% of P, smaller than or equal to 0.03% of S, 3.80-4.20% of Cr, 2.45-2.60% of V, 5.00-5.20% of Mo, 6.00-6.20% of W, 1.80-2.20% of Co, and the balance Fe. The novel high-vanadium W6+Co high-speed steel material has the advantages that higher abrasionresistance, red hardness and other machining performance are achieved, and the quenching and tempering hardness of the novel high-vanadium W6+Co high-speed steel material can reach 67+ / -1 HRC.

Description

technical field [0001] The invention belongs to the technical field of steelmaking, in particular to a novel high-vanadium W6+Co high-speed steel material and a preparation method thereof. Background technique [0002] Among the currently produced materials, the chemical composition of the tungsten-molybdenum high-speed steel W6+Co used to make cutting tools is in weight percentage (%), respectively C: 0.91-0.95, W: 5.80-6.20, Mo: 4.80 ~5.20, Cr: 3.80~4.20, V: 1.80~2.10, Co: 1.80~2.20, Mn: 0.20~0.40, Si: 0.30~0.40, S: ≤0.02, P: ≤0.03, the balance is Fe, its quenching The hardness after tempering is 65±1HRC. [0003] At present, high-speed steel with a hardness of 66±1HRC is often used in the preparation of cutting tools. The materials that can meet this demand in the world are tungsten-molybdenum high-speed steel M35 and molybdenum high-speed steel M42. Both materials contain high cobalt Elements are expensive, 2.5 times and 5 times that of M2 respectively. Therefore, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/30C22C38/24C22C38/22C22C38/04C22C38/02C22C33/04C21D1/26C21C7/00C21C7/10C22B9/18C21D1/18
CPCC21C7/0056C21C7/10C21D1/18C21D1/26C22B9/18C22C33/04C22C38/002C22C38/02C22C38/04C22C38/22C22C38/24C22C38/30
Inventor 卢逸夫
Owner 浙江精瑞工模具有限公司