Longitudinal shearing splitting disc blade and manufacturing method thereof

A disc blade, slitting and slitting technology, which is applied in the direction of manufacturing tools, knives for shearing devices, shearing devices, etc., can solve the problems of poor toughness and wear resistance, easy deformation, etc., and achieve toughness and durability Good abrasiveness, high sharpness and long service life

Active Publication Date: 2015-09-23
安徽华天机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of the existing large-size slitting disc blades in the process of easy deformation, poor tou

Method used

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  • Longitudinal shearing splitting disc blade and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] Such as figure 1 As shown, a slitting disc blade includes a mounting hole and a blade. The surface roughness of the blade is 0.2, the thickness of the blade is 12±0.002mm, and the outer diameter of the slitting disc blade is 610mm.

[0043] The steps of manufacturing the above-mentioned slitting disc blade are:

[0044] (1) Preparation of rough raw materials:

[0045] It is produced by using a forging blank for forging. The mass percentages of the forging blank components are: C: 1.32%, Mn: 0.55%, Si: 0.36%, Cr: 6.50%, W: 1.90%, V: 1.54%, Mo: 0.56%, Ni: 0.50%, S: ≤0.020%, P: ≤0.027%, the balance is Fe;

[0046] (2) Isothermal spheroidizing annealing treatment of forging blank:

[0047] The forging blank obtained in step (1) is annealed, the heating rate s=20T / (h+D)°C / h=20×830 / (12+610)=27°C / h, where T is heat preservation Temperature, the unit is ℃, h is the thickness of the cutter head, the unit is mm, D is the outer diameter of the slitting disc blade, the u...

Example Embodiment

[0063] Example 2

[0064] Such as figure 1 As shown, a slitting disc blade includes a mounting hole and a blade, the surface roughness of the blade is 0.2, the blade thickness is 12±0.002mm, and the outer diameter of the slitting disc blade is 500mm.

[0065] The steps of manufacturing the above-mentioned slitting disc blade are:

[0066] (1) Preparation of rough raw materials:

[0067] It is produced by using a forging blank for forging. The mass percentages of the forging blank components are: C: 1.15%, Mn: 0.40%, Si: 0.40%, Cr: 5.00%, W: 1.50%, V: 1.65%, Mo: 0.40%, Ni: 0.45%, S: ≤0.020%, P: ≤0.027%, the balance is Fe;

[0068] (2) Isothermal spheroidizing annealing treatment of forging blank:

[0069] The forging blank obtained in step (1) is annealed, and the heating rate s=20T / (h+D)°C / h=20×820 / (12+500)=32°C / h, where T is heat preservation Temperature, the unit is ℃, h is the thickness of the cutter head, the unit is mm, D is the outer diameter of the slitting disc blade, the unit...

Example Embodiment

[0085] Example 3

[0086] Such as figure 1 As shown, a slitting disc blade includes a mounting hole and a blade. The surface roughness of the blade is 0.2, the thickness of the blade is 12±0.002mm, and the outer diameter of the slitting disc blade is 700mm.

[0087] The steps of manufacturing the above-mentioned slitting disc blade are:

[0088] (1) Preparation of rough raw materials:

[0089] It is produced by using a forging blank for forging. The mass percentages of the forging blank components are: C: 1.40%, Mn: 0.65%, Si: 0.32%, Cr: 7.50%, W: 2.50%, V: 1.40%, Mo: 0.60%, Ni: 0.40%, S: ≤0.020%, P: ≤0.027%, the balance is Fe;

[0090] (2) Isothermal spheroidizing annealing treatment of forging blank:

[0091] The forging blank obtained in step (1) is annealed, heating rate s=20T / (h+D)℃ / h=20×840 / (12+700)=24℃ / h, where T is heat preservation Temperature, the unit is ℃, h is the thickness of the cutter head, the unit is mm, D is the outer diameter of the slitting disc blade, the unit is...

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Abstract

The invention discloses a longitudinal shearing splitting disc blade and a manufacturing method thereof, and belongs to the technical field of tool machining. The longitudinal shearing splitting disc blade comprises a mounting hole and a cutting edge, the surface roughness of the cutting edge is 0.2, the thickness of the cutting edge is 12+/-0.002 mm, and the diameter of the outer circle of the longitudinal shearing splitting disc blade ranges from 500 mm to 700 mm. Material components for manufacturing the disc blade comprise, by mass, 1.15 percent to 1.40 percent of C, 0.40 percent to 0.65 percent of Mn, 0.32 percent to 0.40 percent of Si, 5.00 percent to 7.50 percent of Cr, 1.50 percent to 2.50 percent of W, 1.40 percent to 1.65 percent of V, 0.40 percent to 0.60 percent of Mo, 0.40 percent to 0.50 percent of Ni, S smaller than or equal to 0.020 percent, P smaller than or equal to 0.027 percent and the balance Fe. In the annealing and heat treatment process, heating speed is strictly controlled, and the longitudinal shearing splitting disc blade is obtained through quenching by adopting quenching liquid with special components. The longitudinal shearing splitting disc blade has the advantages of being good in tenacity and wear resistance, not likely to deform in the machining process, low in defective percentage and the like.

Description

technical field [0001] The invention belongs to the technical field of tool processing, and more specifically relates to a slitting and slitting disc blade and a manufacturing method thereof. Background technique [0002] Slitter blade design is a harmonious combination of slitter blade geometry, cutting material and coating. Only by continuously introducing advanced slitting machine blade design technology and promoting the development and use of new slitting machine blades can we meet the development needs of advanced cutting processing technology. At present, the world's manufacturing industry is undergoing a profound strategic reorganization. Developed countries and regions such as Europe, America, Japan, and South Korea are carrying out a new round of optimal allocation of manufacturing resources on a global scale. An important market for large-scale industry transfer and beach landing. However, my country's manufacturing technology, especially the level of cutting pr...

Claims

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Application Information

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IPC IPC(8): B23D35/00B23P15/40
Inventor 陶华
Owner 安徽华天机械股份有限公司
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