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Preparation method of iron alloy

A technology of iron alloy and titanium-iron alloy, which is applied in the field of metal casting and can solve problems such as unrealizable

Inactive Publication Date: 2015-03-11
宁波市鄞州商业精密铸造有限公司
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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

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preparation example Construction

[0032] The invention provides a method for preparing an iron alloy,

[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, 0.01-0.03% tellurium, 0.03-0.06% zirconium, 0.0005-0.001% cerium, 0.002-0.003% boron, 0.03- 0.05% cobalt, the balance is iron and unavoidable impurities for batching; wherein, the titanium is added in the form of ferro-titanium alloy containing 10% by weight of titanium; Ferrocerium alloy way to join.

[0034] For smelting, put one-third of the iron by weight, manganese by all the weight, aluminum by all the weight and chromium by one-half by weight into the smelting furnace to melt, and heat up to 1250-1350°C. It adopts the variable speed heating technology scheme, that is, below 700 ° C, the temperature is raised in the form of an acceleration of 1 ° C / minute. When the temperature is 700-...

Embodiment 1

[0043] A method for preparing an 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, 0.01% tellurium, 0.03% zirconium, 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 10% Titanium is added in the form of ferro-titanium alloy by weight; the cerium is added in the form of ferro-cerium alloy containing 15% by weight.

[0045] For smelting, put one-third of the iron by weight, manganese by all the weight, aluminum by all the weight and chromium by one-half by weight into the smelting furnace to melt, and heat up to 1250-1350°C. It adopts the variable speed heating technology scheme, that is, below 700 ° C, the temperature is raised in the form of an acceleration of 1 ° C / minute. When the temperature is 700-1350 ° C, the temperature is raised at a cons...

Embodiment 2

[0051] A method for preparing an 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, 0.03% tellurium, 0.06% zirconium, 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 10% Titanium is added in the form of ferro-titanium alloy by weight; the cerium is added in the form of ferro-cerium alloy containing 15% by weight.

[0053] For smelting, put one-third of the iron by weight, manganese by all the weight, aluminum by all the weight and chromium by one-half by weight into the smelting furnace to melt, and heat up to 1250-1350°C. It adopts the variable speed heating technology scheme, that is, below 700 ° C, the temperature is raised in the form of an acceleration of 1 ° C / minute. When the temperature is 700-1350 ° C, the temperature is raised at a const...

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Abstract

The invention relates to a preparation method of an iron alloy, which comprises the following steps: melting one-third weight of iron, all weight of manganese, all weight of aluminum and one-half weight of chromium in a smelting furnace, heating to 1250-1350 DEG C, keeping the temperature for 0.5-1 hour, and cooling to 200-350 DEG C; sequentially adding the rest weight of chromium and all weight of molybdenum, nickel, titanium, zirconium, boron and cobalt, and heating to 1250-1350 DEG C; and adding the rest weight of iron and all weight of carbon, tellurium, silicon and cerium, keeping at the temperature of 1250-1350 DEG C for 1-2 hours, casting, annealing, and carrying out quenching and tempering treatment to obtain the wear-resistant iron alloy. The tissue crystal grain of aluminum in the alloy solution can produce overgrowth to form a similar skeleton structure with manganese and chromium, and the elements added afterwards are sent into the solution in a filling mode.

Description

technical field [0001] The invention belongs to the field of metal casting, and refers to a preparation method of 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 of these elements that ...

Claims

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Application Information

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IPC IPC(8): C22C38/54C22C33/06C21D6/00
CPCC21D6/004C21D6/005C21D6/007C21D6/008C22C33/06C22C38/005C22C38/02C22C38/04C22C38/06C22C38/105C22C38/12C22C38/14C22C38/16C22C38/18C22C38/60
Inventor 王程懿
Owner 宁波市鄞州商业精密铸造有限公司
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