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Impact resistant titanium alloy turbine blade and manufacturing method thereof

A technology for steam turbine blades and a manufacturing method, which is applied to coatings, polyether coatings, etc., can solve the problems of poor steam shock resistance and low service life of steam turbine blades, and can protect the blade body, improve the degree of smoothness, and reduce the degree of friction. Effect

Inactive Publication Date: 2018-11-06
南京赛达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing steam turbine blades have poor steam impact resistance, which will lead to a low service life of the steam turbine blades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: An impact-resistant titanium alloy steam turbine blade includes a blade body and a blade root. The blade body includes an inner arc surface and an outer arc surface, and a rough surface is provided on the inner arc surface.

[0022] The chemical composition and parts by weight of the steam turbine blade are as follows: C: 2-4 parts, Si: 1-3 parts, Al: 4-5 parts, Mn: 2-6 parts, P: 3-5 parts, S: 1 to 3 parts, nickel-molybdenum disulfide: 3 to 7 parts, W: 1 to 2 parts, styrene: 2 to 4 parts, butadiene: 1 to 3 parts, Er: 1 to 2 parts, Ti: 1 ~ 2 parts, polyoxyethylene fatty alcohol ether: 4 ~ 6 parts, Cr: 2 ~ 3 parts, adhesion promoter: 3 ~ 5 parts, the balance is Fe and unavoidable impurities, the chemical group of the steam turbine blade of the present embodiment Parts and parts by weight are selected as follows: C: 3kg, Si: 2kg, Al: 4.5kg, Mn: 4kg, P: 4kg, S: 2kg, nickel-molybdenum disulfide: 5kg, W: 1.5kg, styrene: 3kg , butadiene: 2kg, Er: 1.5kg, Ti: 1.5k...

Embodiment 2

[0030] Embodiment 2: A kind of impact-resistant titanium alloy steam turbine blade, the difference from embodiment 1 is that the chemical composition and weight parts of the steam turbine blade are as follows: C: 4kg, Si: 3kg, Al: 5kg, Mn: 6kg, P: 5kg, S: 3kg, nickel-molybdenum disulfide: 7kg, W: 2kg, styrene: 4kg, butadiene: 3kg, Er: 2kg, Ti: 2kg, polyoxyethylene fatty alcohol ether: 6kg, Cr: 3kg, adhesion promoter: 5kg, the balance is Fe and unavoidable impurities.

Embodiment 3

[0031] Embodiment 3: A kind of impact-resistant titanium alloy steam turbine blade, the difference from embodiment 1 is that the chemical composition and weight parts of the steam turbine blade are as follows: C: 2kg, Si: 1kg, Al: 4kg, Mn: 2kg, P: 3kg, S: 1kg, nickel-molybdenum disulfide: 3kg, W: 1kg, styrene: 2kg, butadiene: 1kg, Er: 1kg, Ti: 1kg, polyoxyethylene fatty alcohol ether: 4kg, Cr: 2kg, adhesion promoter: 3kg, the balance is Fe and unavoidable impurities.

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Abstract

The invention discloses an impact resistant titanium alloy turbine blade and a manufacturing method thereof, and relates to the technical field of turbine blades. The impact resistant titanium alloy turbine blade comprises a blade body and a blade root, wherein the blade body comprises an inner arc surface and an outer arc surface, and a rough surface is formed on the inner arc surface. The turbine blade is prepared from the following chemical components in parts by weight: 2 to 4 parts of C, 1 to 3 parts of Si, 4 to 5 parts of Al, 2 to 6 parts of Mn, 3 to 5 parts of P, 1 to 3 parts of S, 3 to7 parts of nickel-molybdenum disulfide, 1 to 2 parts of W, 2 to 4 parts of styrene, 1 to 3 parts of butadiene, 1 to 2 parts of Er, 1 to 2 parts of Ti, 4 to 6 parts of polyoxyethylene aliphatic alcohol ether, 2 to 3 parts of Cr, 3 to 5 parts of adhesion promoter and the balance of Fe and inevitable impurities. According to the impact resistant titanium alloy turbine blade, the erosion resistant performance of the turbine blade can be improved, and the service life of the turbine blade is prolonged.

Description

technical field [0001] The invention relates to the technical field of steam turbine blades, in particular to an impact-resistant titanium alloy steam turbine blade and a manufacturing method thereof. Background technique [0002] A steam turbine is a rotary power machine that converts the energy of steam into mechanical work. It is also called a steam turbine. It is mainly used as a prime mover for power generation. The exhaust steam or intermediate extraction steam of the steam turbine can be used to meet the heating needs of production and life. [0003] Steam turbine blades work under the action of high-temperature and high-pressure steam, and they are subjected to strong water droplet erosion during work, and when the steam impacts the steam turbine blades, the steam turbine blades will bear a large impact force, while the existing steam turbine blades are resistant to Poor steam impingement performance results in lower turbine blade life. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): C22C37/10C09D171/02C09D7/63
CPCC08K2201/014C09D7/63C09D171/02C22C37/10C08K5/053
Inventor 刘达王河平宗国翼
Owner 南京赛达科技有限公司