Nano composite nickel substitute alloy and manufacturing process thereof

A nickel-substituting alloy and nano-composite technology, which is applied in the field of nano-composite nickel-substituting alloy and its preparation, can solve the problems of accelerating the consumption of nickel resources, increasing costs, and the high price of nickel metal, so as to save strategic resources, increase benefits, reduce cost effect

Inactive Publication Date: 2010-11-03
SHENYANG POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] 1. Purpose of the invention: The present invention provides a nano-composite nickel-substituting alloy for heat-resistant steel and its

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  • Nano composite nickel substitute alloy and manufacturing process thereof

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preparation example Construction

[0022] The preparation process of the nano-composite nickel-substituting alloy for heat-resistant steel of the present invention, the preparation process is carried out according to the following steps: take each raw material according to the designed ratio, at first adopt polyvinyl butyral (code name is PVB)+dehydrated alcohol Add 20-45 grams of PVB to 1 liter of absolute ethanol to prepare a colloidal liquid with a certain viscosity; weigh nano-scale ceramic powder such as Al 2 o 3 , , MgO, CaO, (containing 5mol% of Y 2 o 3 ), etc., added to absolute ethanol to become a suspension state, and then dispersed into a single particle state by ultrasonic waves. If not, it is considered that the ultrasonic power cannot meet the test requirements, and the dispersed powder is unqualified. Then pour it into the agitator with "PVB+absolute ethanol glue" added in advance, and stir slowly at the beginning, that is, the rotation speed of the agitator is 80-120 rpm; then add other m...

Embodiment 1

[0025]The invention discloses a nano-composite nickel-substituting alloy for heat-resistant steel. The nickel-substituting alloy is prepared by compounding nano-ceramic powder, light metal with low melting point and high-density metal. The total weight of the prepared nickel substitute alloy is 5000g, and the ratio of various raw materials is: the total weight of nano-ceramic powder is 360g, of which TiO 2 The sum of the three weights of +MgO+CaO is 45g, that is, each component is 15g; ZrO 2 (containing 5mol% of Y 2 o 3 ) content is 50g; the rest is nano-Al 2 o 3 Powder. The sum of the weight of low-melting point metal aluminum and titanium is 400g, and 110g of aluminum powder is added thereto. The total weight of high-density metal iron, chromium, manganese and zinc is 4240g; 3000g of iron powder and 1140g of chromium powder are added; manganese and zinc each account for half of the remaining amount.

[0026] The above-mentioned preparation process is carried out accord...

Embodiment 2

[0028] The invention discloses a nano-composite nickel-substituting alloy for heat-resistant steel. The nickel-substituting alloy is prepared by compounding nano-ceramic powder, light metal with low melting point and high-density metal. The total weight of the prepared nickel substitute alloy is 5000g, and the ratio of various raw materials is: the total weight of nano-ceramic powder is 150g, of which TiO 2 The sum of the three weights of +MgO+CaO is 30g, that is, each component is 10g; the content of zirconia is 40g; the remaining 80g is nano-Al 2 o 3 Powder. The sum of the weight of low melting point metal aluminum and titanium is 250g, and 75g of aluminum powder is added thereto. The total weight of high-density metal iron, chromium, manganese and zinc is 4600g; 3360g of iron powder and 1140g of chromium powder are added; manganese and zinc each account for half of the remaining amount.

[0029] The above-mentioned preparation process is carried out according to the foll...

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Abstract

The invention relates to a nanometer composite ceramics nickel substitute alloy and a preparation technique thereof, wherein the nickel substitute alloy is prepared by the combination of ceramic powder, low-melting point metal and high-density metal; the ceramic powder consists of nano-scale Al2O3, TiO2, MgO, CaO and ZrO2 of which the whole weight is 2-6% of the whole weight of the nickel substitute alloy, the low-melting point metal is a mixture of aluminum powder and titanium powder; the high-density metal consists of iron, chromium, manganese, and zinc powders of which the whole weight is 85-93% of the whole weight of the nickel substitute alloy; and after mixing the above materials, producing blanks, oxidizing and sintering, the nickel substitute alloy can be manufactured.An objectiveof the invention is to solve problems that in the conventional method, metal nickel is needed for manufacturing refractory steel casting parts, thus, the product cost is improved because the nickel is expensive, at the same time, the consumption speed of the nickel resources is increased, and the like.

Description

1. Technical field: [0001] The invention relates to a nano-composite nickel-substituting alloy for heat-resistant steel and its preparation process, in particular to a new type of alloy used in heat-resistant steel to replace the original noble metal nickel and its preparation method. 2. Background technology: [0002] Heat-resistant steel castings are playing an important role in thermal power plant boilers, high-temperature electric furnaces and other fields. Heat-resistant cast steel needs to add 3-35% (weight percent) of nickel metal. Nickel is the main material used in aero-engines, which is a strategic resource and is non-renewable; the large-scale use of civil industries will accelerate the consumption of nickel resources; The civil industry leads to an increase in the cost of heat-resistant steel castings, and the profits of steel casting companies are greatly reduced. Therefore, the product of the present invention—the nanocomposite nickel-substituting alloy for h...

Claims

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Application Information

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IPC IPC(8): C22C19/05C22C1/05
Inventor 韩亚苓
Owner SHENYANG POLYTECHNIC UNIV
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