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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 high. The damage of the fan blades often leads to the damage of the whole product, which greatly increases the scrap rate and poses a great threat to environmental pollution. In order to improve the cooling fan blade The utilization rate is reduced, the scrap rate is reduced, and time and effort are saved. The present invention proposes a precision corrosion-resistant air cooler fan blade and its casting process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a precision corrosion-resistant cooling fan blade, including the blade body, the weight percentage of the blade body is: Zr: 1.23%, Re: 2.3%, Bi: 1.32%, C: 1.03%, 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] Among the rare earths, the following components are contained by weight percentage: Ce: 8.8%, La: 6%, Y: 1.23%, Sc: 11%, Gd: 11%, Sm: 2%, and the balance is Gd;

[0036] A precision corrosion-resistant cooling fan blade, the process includes the following steps:

[0037] (1) Core making: Use resin sand to make sand cores according to the shape of the fan blades; then brush special refractory coatings on the surface of the prepared sand cores and do ignition treatment; finally send the sand cores into a drying oven with a curing temperature of 270 °C;

[0038] (2) Mold clamping: firstly, a pair of metal outer molds are clamped front and rear and pla...

Embodiment 2

[0044] This embodiment provides a precision corrosion-resistant cooling fan blade, including the blade body, the weight percentage of the 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] Rare earths contain the following components by weight percentage: Ce: 9.5%, La: 9%, Y: 6.8%, Sc: 15%, Gd: 16%, Sm: 6%, and the balance is Gd;

[0046] A precision corrosion-resistant cooling fan blade, the process includes the following steps:

[0047] (1) Core making: Use resin sand to make sand cores according to the shape of the fan blades; then brush special refractory coatings on the surface of the prepared sand cores and do ignition treatment; finally send the sand cores into a drying oven with a curing temperature of 300 °C;

[0048] (2) Mold clamping: firstly, a pair of metal outer molds are clamped front and rear and placed on the base so...

Embodiment 3

[0054] This embodiment provides a precision corrosion-resistant cooling fan blade, including the blade body, the weight percentage of the blade body is: Zr: 1.44%, Re: 2.5%, Bi: 1.49%, C: 1.11%, 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] Among rare earths, the following components are contained by weight percentage: Ce: 8.9%, La: 7%, Y: 5.56%, Sc: 13%, Gd: 12%, Sm: 5%, and the balance is Gd;

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

[0057] (1) Core making: Use resin sand to make sand cores according to the shape of the fan blades; then brush special refractory coatings on the surface of the prepared sand cores and do ignition treatment; finally send the sand cores into a drying oven with a curing temperature of 280 °C;

[0058] (2) Mold clamping: firstly, a pair of metal outer molds are clamped front and rea...

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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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