Magnetic corrosion-resistant alloy steel material for hammerheads and preparation method thereof

A corrosion-resistant, alloy steel technology, applied in the field of alloy steel materials for magnetic corrosion-resistant hammer heads and its preparation, can solve the problems of brittle fracture, poor toughness, short service life, etc., and achieve reduced inclusion oxides, high hardness and resistance Effects of abrasiveness and service life improvement

Inactive Publication Date: 2014-03-12
MAANSHAN HENGYI MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many types of hammer head materials, the most commonly used is high manganese steel, initially because of its relatively high hardness and wear resistance, but now people find that this is not the case. In some cases, high manganese steel hammer heads are not wear-resistant and have a short service life. , the reason is that high manganese steel can only produce a high hardness surface hardened layer under the condition of large impact force, but it is not wear-resistant under the condition of small impact force; there is also medium manganese steel hammer head, because of its relatively High hardness and toughness, more durable when the impact force is not too large, and magnetic; high chromium cast iron hammer has excellent wear resistance, but poor toughness, prone to brittle fracture
All kinds of materials cannot achieve the ideal effect, so seeking reasonable materials, developing simple and practical processes, and saving resources and energy on the premise of ensuring the use requirements have become hot spots and difficulties in the field of wear-resistant materials.

Method used

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Embodiment Construction

[0013] An alloy steel material for a magnetic corrosion-resistant hammer head, which contains chemical element components and mass percentages: carbon 2.2-2.5, silicon 1.0-1.3, chromium 13.2-14.5, manganese 2.8-3.1, molybdenum 0.7-0.9, cobalt 1.4-1.7, Dy0.02-0.05, S≤0.05, P≤0.05, the balance is iron.

[0014] The production method of the alloy steel material for the magnetic corrosion-resistant hammer head is:

[0015] (1) Prepare pig iron and scrap iron as the source of iron matrix in a ratio of 1:1, put pig iron into the furnace to melt, desulfurize, deoxidize, use refining agent for one-time refining, add alloy components for alloying, and then add scrap iron to melt , adding refining agent for secondary refining, testing and adjusting the content of chemical elements to pass, casting, post-casting heat treatment, etc.;

[0016] (2) The batch order of alloying elements into the furnace during the alloying process is: (1) silicon, manganese; (2) molybdenum, cobalt; (3) othe...

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Abstract

The invention relates to a magnetic corrosion-resistant alloy steel material for hammerheads, which contains the following chemical elements in percentage by mass: 2.2-2.5% of carbon, 1.0-1.3% of silicon, 13.2-14.5% of chromium, 2.8-3.1% of manganese, 0.7-0.9% of molybdenum, 1.4-1.7% of cobalt, 0.02-0.05% of Dy, at most 0.05% of S, at most 0.05% of P and the balance of iron. The chromium, Dy, cobalt and many other alloy elements are added on the basis of high-carbon steel, matched with part of scrap iron used as a raw material and are subjected to secondary refining; the raw materials are added in different batches, and the post-casting heat treatment temperature is reasonably controlled, so that the alloy has the characteristics of high hardness, high wear resistance, corrosion resistance, stable and uniform quality, certain impact toughness and low rupture tendency, and is magnetic; and the alloy steel material is suitable for crushing objects with high hardness, and can remove iron and other impurities by purification. When the refining agent is used for casting production, the yield is obviously enhanced.

Description

technical field [0001] The invention relates to the field of wear-resistant metal materials, in particular to an alloy steel material for a magnetic corrosion-resistant hammer head and a preparation method thereof. Background technique [0002] There are many types of hammer head materials, the most commonly used is high manganese steel, initially because of its relatively high hardness and wear resistance, but now people find that this is not the case. In some cases, high manganese steel hammer heads are not wear-resistant and have a short service life. , the reason is that high manganese steel can only produce a high hardness surface hardened layer under the condition of large impact force, but it is not wear-resistant under the condition of small impact force; there is also medium manganese steel hammer head, because of its relatively High hardness and toughness, durable and magnetic when the impact force is not too large; high chromium cast iron hammer has excellent wear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/60C22C38/38C22C33/04C21D1/26C21C7/04
Inventor 章功国王泾文段宗银李纯金陈超王淑妍张少伍王晓芬谢勇
Owner MAANSHAN HENGYI MACHINERY MFG
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