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ZG25MnSY3 casting material and preparation method thereof

A casting and slag technology, applied in the field of ZG25MnSY3 casting materials, can solve the problems of easy deformation, wear resistance, insufficient fatigue resistance, fracture, etc., and achieve the effect of improving strength and toughness, prolonging service life and reducing replacement frequency.

Active Publication Date: 2015-05-20
MCC SFRE HEAVY IND EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a ZG25MnSY3 casting material, which solves the problems that the existing castings have insufficient wear resistance and fatigue resistance during use, and are prone to deformation and fracture during use.

Method used

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  • ZG25MnSY3 casting material and preparation method thereof
  • ZG25MnSY3 casting material and preparation method thereof

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Embodiment Construction

[0031] The present invention will be described in detail below in combination with specific embodiments.

[0032] ZG25MnSY3 casting material of the present invention is made up of following components according to mass %:

[0033] C is 0.25%-0.3%, Si is 0.3%-0.45%, Mn is 1%-1.2%, P is ≤0.02%, S is ≤0.015%, Cr is 0.3%-0.6%, Ni is 0.4%-0.6 %, Mo is 0.3%-0.45%, V is 0.09%-0.15%, Nb is ≤0.05%, Cu is ≤0.3%, Al is 0.03%-0.06%, and the rest is Fe, totaling 100%.

[0034] With reference to Table 1, it is the required performance index of the structure design of the ZG25MnSY3 casting material of the present invention.

[0035] Table 1, ZG25MnSY3 casting material structure design requirement performance index of the present invention

[0036]

[0037] Other technical indicators of ZG25MnSY3 casting material of the present invention also include:

[0038] 1) O≤50ppm, H≤10ppm, N≤150ppm;

[0039] 2) The annealed structure is pearlite plus ferrite, with a grain size above grade 8;

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Abstract

The invention discloses a ZG25MnSY3 casting material which consists of the following components in percentage by mass: 0.25-0.3 percent of C, 0.3-0.45 percent of Si, 1-1.2 percent of Mn, less than or equal to 0.02 percent of P, less than or equal to 0.015 percent of S, 0.3-0.6 percent of Cr, 04-0.6 percent of Ni, 0.3-0.45 percent of Mo, 0.09-0.15 percent of V, less than or equal to 0.05 percent of Nb, less than or equal to 0.3 percent of Cu, 0.03-0.06 percent of Al and the balance of Fe, totaling 100 percent. The invention also discloses a preparation method of a casting by utilizing the ZG25MnSY3 casting material. The casting material is smelted in an electric-arc furnace and a refining furnace, a leavening agent is added into the casting material at the later refining stage, the casting material has a good metallographic structure, the mechanical property is greatly improved, the strength and toughness are improved, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of casting materials, and relates to a ZG25MnSY3 casting material, and also relates to a method for preparing castings by using the ZG25MnSY3 material. Background technique [0002] With the development of casting technology, the performance requirements of castings are getting higher and higher, which requires castings to have better materials, good metallographic structure and higher mechanical properties, so as to ensure that the castings are wear-resistant and wear-resistant during use. Fatigue resistance, to ensure that the casting will not be deformed or broken during use. Especially in coal mines for underground coal mining, the safety of castings plays a vital role in the safety of operators' lives and the continuity of equipment operation. Contents of the invention [0003] The purpose of the present invention is to provide a ZG25MnSY3 casting material, which solves the problems that the existing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/48C22C33/04
Inventor 张朋涛田斌杜佳周银宝王耀琨
Owner MCC SFRE HEAVY IND EQUIP
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