Superfine carbide high-alloy tool steel shear-steel splicing mechanical blade

A technology of alloy tool steel and mechanical blade, applied in the field of preparation of mechanical blade, can solve the problem of not completely improving the product yield and other problems, and achieve the effect of easy implementation and control, smooth and clean cutting board surface, and sharp cutting edge.

Inactive Publication Date: 2012-10-17
常州机械刀片有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the existing mechanical blades cannot completely improve the yield of products, the present invention provides a mechanical blade inlaid with ultra-fine carbide high-alloy tool steel edge steel

Method used

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  • Superfine carbide high-alloy tool steel shear-steel splicing mechanical blade
  • Superfine carbide high-alloy tool steel shear-steel splicing mechanical blade
  • Superfine carbide high-alloy tool steel shear-steel splicing mechanical blade

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Embodiment Construction

[0020] An ultra-fine carbide high-alloy tool steel blade steel inlaid mechanical blade. First, an ultra-fine carbide high-alloy tool steel blade steel is prepared. The ultra-fine carbide high-alloy tool steel blade steel contains (wt%) C0.52 ~0.62, Si0.40~0.60, Mn0.25~0.50, Cr5.2~6.2, W2.20~2.70, Mo1.40~1.70, V0.40~0.50, Co or Ni is 0.18~0.30, S≤0.015 , P≤0.02, Fe margin; its preparation includes the use of induction electric furnace or induction electric furnace + electroslag remelting and its 870℃~1100℃ forging and rolling process steps;

[0021] Secondly, use high-temperature non-oxidation press-rolling inlaid on low-carbon steel plates to make mechanical blades;

[0022] Finally, the annealing, quenching and tempering process steps are carried out, and the process conditions are:

[0023] (1) Annealing, heating at 830℃~840℃, keeping for 4~6 hours and then cooling with furnace;

[0024] (2) Quenching, heating at 1010℃~1050℃, heat preservation for 1.2 minutes / mm, oil cooling or air...

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Abstract

The invention relates to the technical field of mechanical blades, in particular to a superfine carbide high-alloy tool steel shear-steel splicing mechanical blade which is manufactured by the steps of: firstly, manufacturing superfine carbide high-alloy tool steel shear-steel, wherein the shear-steel comprises the following components in percentage by weight: 0.52-0.62 percent of C, 0.40-0.60 percent of Si, 0.25-0.50 percent of Mn, 5.2-6.2 percent of Cr, 2.20-2.70 percent of W, 1.40-1.70 percent of Mo, 0.40-0.50 percent of V, 0.18-0.30 percent of Co or Ni, less than or equal to 0.015 percentof S, less than or equal to 0.02 percent of P and the balance of Fe; remelting electroslag by adopting an electric induction furnace or the electric induction furnace, forging and rolling at 870-1,100 DEG C; manufacturing a mechanical blade on a low-carbon steel plate by adopting high-temperature non-oxidation pressure rolling and splicing; and finally, annealing, quenching, tempering. The invention improves the yield of semi-finished products of the splicing procedure.

Description

Technical field [0001] The invention relates to the technical field of preparation of mechanical blades, in particular to an ultrafine carbide high-alloy tool steel blade steel splicing mechanical blade. Background technique [0002] Wood processing machinery blades are thin-edged knives, and the tip of the blade needs to withstand a huge impact load. During the relative movement of the wood and the blade, the violent friction surface will heat the tip of the blade. Therefore, the blade material must not only wear resistance, but also heat resistance to prevent softening. Maintain hardness during cutting. Moreover, the refined carbides in the blade steel can maintain the excellent sharpness of the tip, and can make the surface of the wood board smooth and smooth. With the development of the wood processing industry, it is required to have a longer service life and better processing quality than high-carbon low-alloy steel mechanical blades. In order to achieve this goal, we have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/30C22C38/46C21D9/18C21D9/22
Inventor 马永庆刘国方章晓静
Owner 常州机械刀片有限公司
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