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Method for removing photocuring rapid molding resin by chemical corrosion

A light-curing molding and light-curing technology, which is applied to ceramic molding machines, casting molding equipment, casting molds, etc., to achieve the effect of solving the impact of casting precision

Inactive Publication Date: 2014-12-10
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a chemical etching method for removing light-cured resin parts, which will solve a series of problems caused by the traditional photo-cured resin part ablation removal process, thereby quickly realizing the corrosion of the resin parts to Thickness or complete removal

Method used

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  • Method for removing photocuring rapid molding resin by chemical corrosion
  • Method for removing photocuring rapid molding resin by chemical corrosion
  • Method for removing photocuring rapid molding resin by chemical corrosion

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] Corrosion test of photosensitive resin with different formulations

[0014] Experimental conditions: room temperature 20℃, corrosion time: 80min;

[0015] Experimental Materials:

[0016] Corrosion solution (formulation 1): potassium hydroxide / ethanol / water, in which the solute potassium hydroxide accounts for 15% of the total mass of the mixed solution, the solvent ethanol and water respectively account for the percentages of the total mass of the solvent: 85% and 15%;

[0017] Corrosion solution (formulation 2): potassium hydroxide / methanol / water, in which the solute potassium hydroxide accounts for 15% of the total mass of the mixed solution, and the solvent methanol and water account for 85% and 15% of the total mass of the solvent respectively;

[0018] Corrosion solution (formulation 3): potassium hydroxide / water, in which the solute potassium hydroxide accounts for the total mass fraction of the solution: 15%;

[0019] Photosensitive resin parts DSM Somos 19120, beaker, ele...

example 2

[0026] This experiment gives examples of several commonly used different types of photosensitive resin corrosion

[0027] Experimental conditions: room temperature (20℃), corrosion time 100min;

[0028] Corrosion solution: Formula One, the mass fraction of the solute potassium hydroxide is 15% of the total mass of the mixed solution, and the ethanol purity is 90%;

[0029] Materials of photosensitive resin parts:

[0030] 1.DSM Somos ProtoTherm 14120;

[0031] 2. DSM Somos 19120;

[0032] 3. SPR9000;

[0033] 4. SPR9100.

[0034] Size of photosensitive resin parts: 4X10X60;

[0035] Experimental results:

[0036] The quality control before and after corrosion is shown in Table 2:

[0037] Table 2 The quality comparison table of four kinds of resin parts before and after corrosion in formula 1

[0038]

example 3

[0040] This experiment is aimed at the corrosion of several commonly used different types of photosensitive resin under the condition of formula two.

[0041] Experimental conditions: room temperature (20℃), corrosion time 100min;

[0042] Corrosion solution: formula two, the mass fraction of solute potassium hydroxide in the total mass of the mixed solution is 15%, and the methanol purity is 90%;

[0043] Materials of photosensitive resin parts:

[0044] 1.DSM Somos ProtoTherm 14120;

[0045] 2. DSM Somos 19120;

[0046] 3. SPR9000;

[0047] 4. SPR9100.

[0048] Size of photosensitive resin parts: 4X10X60;

[0049] Experimental results:

[0050] The quality control before and after corrosion is shown in Table 3:

[0051] Table 3 The quality comparison table of the four resin parts before and after corrosion under formula 2

[0052]

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Abstract

The invention discloses a removing method of a photocuring rapid molding resin member, which is suitable for hollow turbine blade ceramic-mould integral production. The method removes the photocuring resin member by corrosion with a chemical method, wherein the corrosive liquid is a mixture composed of multiple chemical substances. The method comprises the steps of: placing the existing resin member in the corrosive liquid or injecting the corrosive liquid in the resin member and immersing for a time, carrying out layer-by-layer reaction on the corrosive liquid and the resin member, and evenly dissolving the resin member layer by layer to remove the resin member. In the method, the reaction speed can be controlled by using the concentration and temperature of the corrosive liquid so as to accurately control the corrosive process of the resin member. The corrosion process ensures that the resin member can be removed more simply and controllably even at normal temperature, and solves a series of problems (such as cracking, and stress deformation) caused by ignition lost of the conventional hollow turbine blade ceramic-mould resin, and brings great convenience for integral production of the hollow turbine blade ceramic mould.

Description

Technical field [0001] The invention belongs to the field of rapid casting based on light curing rapid prototyping, and specifically relates to a resin part with a complicated inner cavity structure and a rapid casting process based on a resin part with a complicated inner cavity structure, and is particularly suitable for ablating resin in the past in the rapid casting process To achieve the purpose of removing resin to form complex parts process. Background technique [0002] With the continuous promotion of light-curing molding technology, light-curing molding has gradually been widely used in rapid casting, rapid molds and other industries because of its ability to mold arbitrarily complex structures and high-precision parts. Therefore, the requirements for various properties of light-curing resins are also With continuous improvement, most of the light-curable molding resins have high resistance to strong acids and alkalis, such as DSM Somos ProtoTherm 14120, casting special...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/04B22C9/24B28B7/34
Inventor 李涤尘韩香广吴海华段玉岗鲁中良李奕宁刘飞
Owner XI AN JIAOTONG UNIV