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Copper-manganese alloy steel material for fan blades for wind power generation

A copper-manganese alloy steel and wind blade technology, which is applied in the field of wind power generation, can solve the problem that the strength and the ability to resist wind blows cannot keep up, and can improve the high temperature non-skinning performance, improve the oxidation resistance and corrosion resistance, The effect of low copper content

Inactive Publication Date: 2015-03-11
WUXI NUIST WEATHER SENSOR NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wind blades made of composite materials and commonly used unsaturated resin and epoxy resin materials used in the prior art cannot keep up with the requirements of current wind power generation blades in terms of strength and wind resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A copper-manganese alloy steel material for wind blades of wind power generation, the components and their mass percentages are:

[0027] C: 0.02%, Cr: 7%, Mn<1.5%, Si: 0.5%, Al: 3.5%, Cu: 0.03%, B: 0.5%, and the balance is Fe.

Embodiment 2

[0029] A copper-manganese alloy steel material for wind blades of wind power generation, the components and their mass percentages are:

[0030] C: 0.04%, Cr: 8.5%, Mn<1.5%, Si: 0.7%, Al: 4.0%, Cu: 0.05%, B: 1.0%, and the balance is Fe.

Embodiment 3

[0032] A copper-manganese alloy steel material for wind blades of wind power generation, the components and their mass percentages are:

[0033] C: 0.06%, Cr: 8.5%, Mn<1.5%, Si: 0.8%, Al: 4.5%, Cu: 0.06%, B: 1.5%, and the balance is Fe.

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Abstract

A disclosed copper-manganese alloy steel material for fan blades for wind power generation comprises the compositions in percent by mass: 0.02-0.14% of C, 7- 10.5% of Cr, <1.5% of Mn, 0.5-1.5% of Si, 0.03-0.08% of Cu, 3.5-5.5% of Al, 0.5-2.5% of B, and the balance Fe. By adding the boron element, a high-hardness iron-boron compound is easily formed in steel, the wear resistance of cast steel is obviously improved, and a part of boron is dissolved in the matrix and is capable of improving the matrix hardenability.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a copper-manganese alloy steel material for wind blades of wind power generation. Background technique [0002] Wind power is a mature and cheap power resource, which consists of three-phase permanent magnet generator, wind blade, tower, cable, controller, inverter, battery pack and so on. When the wind pushes the fan blades to rotate, the three-phase low-voltage alternating current generated by the special control circuit is converted into direct current to charge and store the battery. When in use, the inverter (inversion power supply) generates 220v, 50Hz alternating current, which is as convenient as using grid power supply, and it does not cost money to invest in long-term electricity at one time. A set of 300W wind turbines can meet the electricity consumption of a family's TV, DVD, satellite receiver, electric fan, lighting, etc. If a fan with a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/32
CPCC22C38/32C22C38/06C22C38/20
Inventor 禹胜林
Owner WUXI NUIST WEATHER SENSOR NETWORK TECH
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