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Preparation method of wear-resistant ferroalloy

A ferroalloy, wear-resistant technology, applied in the field of high wear-resistant ferroalloy preparation, can solve problems such as unrealizable

Active Publication Date: 2015-04-01
NINGBO HENGYUAN CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The ferroalloy obtained through the above technical scheme has high wear resistance, and can completely replace precious metals and some rare earths with low-priced elements, but further improve the performance of the ferroalloy, such as tensile strength or yield strength and hardness, etc., Above-mentioned technical scheme just can't realize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The invention provides a method for preparing a wear-resistant ferroalloy,

[0033] Ingredients, by weight percentage, are 0.8-1.2% carbon, 0.6-0.65% silicon, 1.1-1.3% manganese, 1.4-1.6% chromium, 0.1-0.2% molybdenum, 0.05-0.1% nickel, 0.8 -1.2% aluminum, 0.3-0.5% copper, 0.02-0.03% titanium, 0.03-0.06% vanadium, 0.0005-0.001% cerium, 0.002-0.003% boron, 0.03-0.05% cobalt, balance Dosing for iron and unavoidable impurities; wherein, the titanium is added in the form of titanium-iron alloy containing 10% by weight of titanium; the described cerium is added in the form of cerium-iron alloy containing 15% by weight.

[0034] For smelting, put one-third of the weight of iron, all of the manganese, all of the aluminum and one-half of the chromium into a melting furnace to melt, and heat up to 1250-1350°C, then keep warm for 0.5-1 After hours, the temperature is lowered to 200-350°C. The cooling here is to stabilize the formed iron-aluminum-manganese-chromium skeleton struc...

Embodiment 1

[0043] A method for preparing a wear-resistant iron alloy,

[0044]Ingredients, by weight percentage, 0.8% carbon, 0.6% silicon, 1.1% manganese, 1.4% chromium, 0.1% molybdenum, 0.05% nickel, 0.8% aluminum, 0.3% copper, 0.02% Titanium, 0.03% vanadium, 0.0005% cerium, 0.002% boron, 0.03% cobalt, and the balance is iron and unavoidable impurities for batching; wherein, the titanium is made of titanium containing 10% by weight Titanium-iron alloy is added; the cerium is added by cerium-iron alloy containing 15% by weight.

[0045] For smelting, put one-third of the weight of iron, all of the manganese, all of the aluminum and one-half of the chromium into a melting furnace to melt, and heat up to 1250-1350°C, then keep warm for 0.5-1 After hours, the temperature is lowered to 200-350°C. The cooling here is to stabilize the formed iron-aluminum-manganese-chromium skeleton structure and prevent the excessive growth of this skeleton structure from affecting the performance of the fi...

Embodiment 2

[0051] A method for preparing a wear-resistant iron alloy,

[0052] Ingredients, by weight percentage, 1.2% carbon, 0.65% silicon, 1.3% manganese, 1.6% chromium, 0.2% molybdenum, 0.1% nickel, 1.2% aluminum, 0.5% copper, 0.03% Titanium, 0.06% vanadium, 0.001% cerium, 0.003% boron, 0.05% cobalt, and the balance is iron and unavoidable impurities for batching; wherein, the titanium is made of titanium containing 10% by weight Titanium-iron alloy is added; the cerium is added by cerium-iron alloy containing 15% by weight.

[0053] For smelting, put one-third of the weight of iron, all of the manganese, all of the aluminum and one-half of the chromium into a melting furnace to melt, and heat up to 1250-1350°C, then keep warm for 0.5-1 After hours, the temperature is lowered to 200-350°C. The cooling here is to stabilize the formed iron-aluminum-manganese-chromium skeleton structure and prevent the excessive growth of this skeleton structure from affecting the performance of the fi...

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Abstract

The invention relates to a preparation method of a wear-resistant ferroalloy. The method comprises steps as follows: in the ratio, placing 1 / 3 parts of iron by weight, 1 part of manganese by weight, 1 part ofaluminum by weight and 1 / 2 parts of chromium by weight into a smelting furnace for melting, heating the smelting furnace to the temperature of 1250-1350 DEG C for 0.5-1 h, and then cooling the smelting furnace to the temperature of 200-350 DEG C; then sequentially adding the rest chromium by weight, 1 part ofmolybdenum by weight,1 part of nickel by weight, 1 part of titanium by weight, 1 part of vanadium by weight, 1 part of boron by weight and 1 part of cobalt by weight, and heating the mixture to the temperature of 1250-1350 DEG C; then adding the rest iron by weight, 1 part of carbon by weight, 1 part of silicon by weight and 1 part of ceriumby weight at the temperature of 1250-1350 DEG C for 1-2 h, and performing casting, annealing, quenching and tempering to obtain the wear-resistant ferroalloy. Structural grains of the aluminum can grow excessively in an alloy liquid, the aluminum, the manganese and the chromium form a framework-like structure, and elements added later enter the liquid in a filling manner.

Description

technical field [0001] The invention belongs to the field of metal casting, and refers to a preparation method of a high wear resistance ferroalloy. Background technique [0002] In the field of machinery and other fields, in order to increase the processing speed and reduce the processing procedures, many parts are processed by casting, especially for some parts with complex structures, the process of machining is very complicated. Casting can be formed at one time and has been widely used. [0003] On the other hand, by adopting the casting processing method, the properties of the alloy can be adjusted according to the needs of the product to be processed, that is, certain properties of the alloy can be improved by changing the material composition in the alloy. In the casting process of the current technology, in order to improve or enhance a certain property in the alloy, it is generally achieved by adding elements that can improve or improve these properties, and most ...

Claims

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Application Information

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IPC IPC(8): C22C33/04C22C38/54C21D6/00
Inventor 王程懿
Owner NINGBO HENGYUAN CASTING
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