Precision and anti-corrosion air cooler fan blade and casting technology thereof

A corrosion-resistant, cooling fan technology, applied in the processing field of cooling fan accessories, can solve the problems of low corrosion resistance, increased scrap rate, poor use effect, etc., to achieve the effect of improving hardness and strength, reducing operating strength, and simple casting steps

Inactive Publication Date: 2018-03-30
博维恩冷冻科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion problems pervade various departments and industries, and have caused great harm to the development of the national economy, human life and the social environment. Therefore, the corrosion and protection of metals have attracted widespread attention from all over the world; the corrosion resistance of the fan blades of the air cooler in the prior art Low, the use effect is poor, and the damage rate is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] This embodiment provides a precision corrosion-resistant air cooler fan blade, including a fan blade body. The weight percentage composition of the fan blade body is: Zr: 1.23%, Re: 2.3%, Bi: 1.32%, C: 1.03%, and Si: 2.33 %, Mn: 1.26%, Mo: 0.12%, Co: 0.6%, Ge: 2.23%, Ti: 2.5%, lanthanide rare earth: 33%, the rest is Fe and trace impurities;

[0035] The rare earths contain the following components by weight percentage: Ce: 8.8%, La: 6%, Y: 1.23%, Sc: 11%, Gd: 11%, Sm: 2%, the balance is Gd;

[0036] A precision corrosion-resistant air cooler fan blade. The process includes the following steps:

[0037] (1) Core making: use resin sand to make a sand core according to the shape of the fan blade; then brush a special refractory coating on the surface of the sand core and do igniting treatment; finally send the sand core into a drying oven, and the curing temperature is 270℃;

[0038] (2) Mold clamping: First, a pair of metal outer molds are clamped back and forth...

Example Embodiment

[0043] Example 2

[0044] This embodiment provides a precision corrosion-resistant air cooler fan blade, including a fan blade body. The weight percentage composition of the fan blade body is: Zr: 1.56%, Re: 2.9%, Bi: 1.59%, C: 1.23%, Si: 4.58 %, Mn: 1.38%, Mo: 0.15%, Co: 0.9%, Ge: 2.58%, Ti: 3.6%, lanthanide rare earth: 38%, the rest is Fe and trace impurities;

[0045] The rare earths contain the following components by weight percentage: Ce: 9.5%, La: 9%, Y: 6.8%, Sc: 15%, Gd: 16%, Sm: 6%, the balance is Gd;

[0046] A precision corrosion-resistant air cooler fan blade. The process includes the following steps:

[0047] (1) Core making: use resin sand to make a sand core according to the shape of the fan blade; then brush a special refractory coating on the surface of the sand core and do igniting treatment; finally send the sand core into a drying oven, curing temperature 300 ℃;

[0048] (2) Mold clamping: First, a pair of metal outer molds are clamped back and forth and placed on ...

Example Embodiment

[0053] Example 3

[0054] This embodiment provides a precision corrosion-resistant air cooler fan blade, including a fan blade body. The weight percentage composition of the fan blade body is: Zr: 1.44%, Re: 2.5%, Bi: 1.49%, C: 1.11%, and Si: 3.56 %, Mn: 1.32%, Mo: 0.13%, Co: 0.8%, Ge: 2.56%, Ti: 3.2%, lanthanide rare earth: 35%, the rest is Fe and trace impurities;

[0055] The rare earths contain the following components by weight percentage: Ce: 8.9%, La: 7%, Y: 5.56%, Sc: 13%, Gd: 12%, Sm: 5%, the balance is Gd;

[0056] A casting process for precision corrosion-resistant air cooler blades includes the following steps:

[0057] (1) Core making: use resin sand to make a sand core according to the shape of the fan blade; then brush a special refractory coating on the surface of the sand core and do igniting treatment; finally send the sand core into a drying oven, and the curing temperature is 280℃;

[0058] (2) Mold clamping: First, a pair of metal outer molds are clamped back and f...

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PUM

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Abstract

The invention discloses a precision and anti-corrosion air cooler fan blade comprising a fan blade body. The fan blade body comprises, by weight, 1.23%-1.56% of Zr, 2.3%-2.9% of Re, 1.32%-1.59% of Bi,1.03%-1.23% of C, 2.33%-4.58% of Si, 1.26%-1.38% of Mn, 0.12%-0.15% of Mo, 0.6%-0.9% of Co, 2.23%-2.58% of Ge, 2.5%-3.6% of Ti, 33%-38% of lanthanum rare earth, and the balance Fe and trace impurities; and the rear earth comprises, by weight, 8.8%-9.5% of Ce, 6%-9% of La, 1.23%-6.8% of Y, 11%-15% of Sc, 11%-16% of Gd, 2%-6% of Sm and the balance Gd.

Description

technical field [0001] The invention relates to the technical field of cooling fan accessories processing, in particular to a precision corrosion-resistant cooling fan blade and its casting process. Background technique [0002] Corrosion is the degradation and destruction of metal materials under natural conditions or working conditions due to chemical or electrochemical interactions with the surrounding medium. This phenomenon is called corrosion. Corrosion problems pervade various departments and industries, and have caused great harm to the development of the national economy, human life and the social environment. Therefore, the corrosion and protection of metals have attracted widespread attention from all over the world; the corrosion resistance of the fan blades of the air cooler in the prior art Low, the use effect is poor, and the damage rate is high. The damage of the fan blades often leads to the damage of the whole product, which greatly increases the scrap rate...

Claims

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Application Information

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IPC IPC(8): C22C38/14C22C38/02C22C38/04C22C38/12C22C38/10B22D18/04
CPCC22C38/14B22D18/04C22C38/002C22C38/005C22C38/02C22C38/04C22C38/10C22C38/12
Inventor 陆荣晓唐建明
Owner 博维恩冷冻科技(苏州)有限公司
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