Air blower

A blower and preparation process technology, applied in the field of metal materials, can solve the problems of many cracks, complex aluminum alloy coping, poor elongation, etc., and achieve the effects of small expansion coefficient, strong resistance and prolonging product life.

Inactive Publication Date: 2018-02-27
NINGBO SHENGHONG MACHINERY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

General alloy materials and processing methods can be used in common environments, but in-depth research is still needed to improve the performance of aluminum alloys (such as strength and hardness)
[0005] In view of the shortcomings of traditional aluminum alloys such as many cracks and poor elongation, Publication No. 106048379A discloses a method to improve the toughness and elongation of the product by adding rare earth, strontium and other elements into the aluminum alloy.
However, only improving the toughness, elongation and other properties of aluminum alloys cannot make aluminum alloys cope with complex environments.

Method used

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  • Air blower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Melting: Weigh raw materials according to the composition and mass percentage of the above aluminum alloy, including Li: 1%, Pt: 0.2%, Ir: 0.2%, Ni: 3%, Mg: 1%, Cu: 3%, and the balance is Al and impurities, wherein the impurities include H<0.018%, O<0.016%, S<0.015%, N<0.02. The raw materials are put into an intermediate frequency induction furnace to be smelted into an aluminum alloy liquid and cast into an aluminum alloy plate.

[0031] Heat treatment: Heat the aluminum alloy plate to 550°C, keep it warm for 1 hour, then immerse it in water containing sodium pertechnetate for water quenching, take it out and dry it, then heat the aluminum alloy plate to 185°C, hold it for 30 minutes, then water quench it, continue Heat the aluminum alloy plate to 600°C, keep it warm for 3 minutes, then heat the aluminum alloy plate to 130°C after natural cooling, keep it warm for 25 hours, then slowly raise the temperature to 160°C, and keep it warm for 45 hours.

[0032] Forming: Th...

Embodiment 2

[0035] Melting: Weigh raw materials according to the composition and mass percentage of the above aluminum alloy, including Li: 0.5%, Pt: 0.1%, Ir: 0.1%, Ni: 2%, Mg: 0.5%, Cu: 1%, and the balance is Al and impurities, wherein the impurities include H<0.018%, O<0.016%, S<0.015%, N<0.02. The raw materials are put into an intermediate frequency induction furnace to be smelted into an aluminum alloy liquid and cast into an aluminum alloy plate.

[0036] Heat treatment: Heat the aluminum alloy plate to 550°C, keep it warm for 1 hour, then immerse it in water containing sodium pertechnetate for water quenching, take it out and dry it, then heat the aluminum alloy plate to 185°C, hold it for 30 minutes, then water quench it, continue Heat the aluminum alloy plate to 600°C, keep it warm for 3 minutes, then heat the aluminum alloy plate to 130°C after natural cooling, keep it warm for 25 hours, then slowly raise the temperature to 160°C, and keep it warm for 45 hours.

[0037] Forming...

Embodiment 4

[0045] Melting: Weigh raw materials according to the composition and mass percentage of the above aluminum alloy, including Li: 1%, Pt: 0.2%, Ir: 0.2%, Ni: 3%, Mg: 1%, Cu: 3%, and the balance is Al and impurities, wherein the impurities include H<0.018%, O<0.016%, S<0.015%, N<0.02. The raw materials are put into an intermediate frequency induction furnace to be smelted into an aluminum alloy liquid and cast into an aluminum alloy plate.

[0046] Heat treatment: heat the aluminum alloy plate to 500°C, keep it warm for 0.5h, then immerse it in water containing sodium pertechnetate for water quenching treatment, take it out and dry it, then heat the aluminum alloy plate to 170°C, hold it for 20min and then water quench it. Continue to heat the aluminum alloy plate to 500°C, keep it warm for 1min, then heat the aluminum alloy plate to 120°C after natural cooling, keep it warm for 20h, then slowly raise the temperature to 150°C, and keep it warm for 40h.

[0047] Forming: The heat...

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Abstract

The invention discloses an air blower and a preparation technique thereof, and belongs to the technical field of metal materials. The air blower comprises 0.5-1.5% of Li, 0.1-0.3% of Pt, 0.1-0.3% of Ir, 2-4% of Ni, 0.5-1.5% of Mg, 1-5% of Cu, and the balance Al and impurities. The chemical activity of Li of the raw materials is high and can react with gas elements such as hydrogen, oxygen, sulfurand nitrogen in alloy to generate a chemical compound with a low density and a low melting point, and bubbles and other defects of metal are eliminated. Pt and Ir are likely to form a Pt-Ir binary alloy phase, the expansion coefficient is small, and thus the capacity to resist thermal expansion and cold contraction of aluminum alloy can be improved. Meanwhile, grains are refined through solid solution treatment and aging treatment, so that the alloy has a good mechanical property. A uniform and compact ceramic-like film is formed on the surface of a product through micro-arc oxidation, and thus the product has extremely high resistance in complex and changeable environments.

Description

technical field [0001] The invention relates to a blower and a preparation process thereof, belonging to the field of metal materials. Background technique [0002] From ancient times to the present, the metallurgical industry has always been valued, and the corresponding auxiliary equipment is also changing with each passing day. From the earliest mouth blowing type air blowing to the blower air blowing later, our requirements for air blowing equipment are getting higher and higher, so the blower's The material composition shows its importance. Blowers are usually made of alloy steel or aluminum alloy. [0003] Aluminum alloy refers to an alloy system based on aluminum, adding a certain amount of magnesium, silicon, molybdenum, chromium, manganese and other elements and controlling the content of impurity elements. Aluminum alloy has high strength, high hardness, light weight and good ductility, especially suitable for structural materials, so it is widely used in defense...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/16C22F1/04C22F1/057C25D11/06
CPCC22C21/00C22C21/16C22F1/04C22F1/057C25D11/026C25D11/06
Inventor 陈镇华陈庆伟
Owner NINGBO SHENGHONG MACHINERY EQUIP
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