Lost foam casting-use paint formula and technology method thereof

A lost foam casting and coating technology, which is applied in the manufacture of tools, casting molding equipment, coatings, etc., can solve the problems of poor wettability, poor air permeability, and poor coating hangability, and achieve increased air permeability, small gas generation, and good air permeability Effect

Inactive Publication Date: 2013-10-23
翼城县福旺铸造实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the coating formulation for lost foam casting has poor wettability wi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Coating formula for lost foam casting, the ingredients required to prepare 100kg of coating formula for lost foam casting are as follows:

[0025] Bauxite 48.5kg, silica sol 3kg, quartz powder 40kg, phenolic resin 2kg, white latex 3kg, sodium bentonite 3kg, isopropanol 0.1kg, JFC: 0.1kg, CMC: 0.3kg.

[0026] The process method of the above coating formulation for lost foam casting is completed according to the following steps:

[0027] 1. According to the ratio of paint powder and water of 1:0.7, put it into the mixer, measure the Baume degree after fully stirring, and control the Baume degree to 65 by diluting with water;

[0028] 2. According to production requirements, it can be dip coated twice or three times;

[0029] 3. The thickness of the coating is 1-2mm.

[0030] The stirring time in this embodiment is controlled within 1 to 1.5 hours.

Embodiment 2

[0032] The difference between this embodiment and the first embodiment is that the ingredients required to prepare a 100kg coating formulation for lost foam casting are as follows:

[0033] Bauxite 55kg, silica sol 5kg, quartz powder 24.4kg, phenolic resin 5kg, white latex 5kg, sodium bentonite 5kg, isopropanol 0.1kg, JFC: 0.1kg, CMC: 0.4kg.

Embodiment 3

[0035] The difference between this embodiment and the first embodiment is that the ingredients required to prepare a 100kg coating formulation for lost foam casting are as follows:

[0036] Bauxite 49.4%, silica sol 3%, quartz powder 38%, phenolic resin 3%, white latex 3%, sodium bentonite 3%, isopropanol 0.1%, JFC: 0.1%, CMC: 0.4%.

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Abstract

The invention discloses a paint formula, particularly discloses a lost foam casting-use paint formula and a technology method thereof. The lost foam casting-use paint formula comprises the following components: 45-65% of bauxite, 1-5% of silica sol, 20-50% quartz powder, 1-5% of phenolic resin, 1-5% of white emulsion, 1-5% of sodium bentonite, 0.1% of isopropanol, 0.1% of JFC and 0.3-0.5% of CMC. The technology method of the lost foam casting-use paint formula comprises the following steps: 1, in the ratio of paint powder to water of 1:0.7, putting the paint powder and the water into a stirrer for stirring for 1-1.5 hours, then measuring baume degree, and controlling the baume degree between 65 and 70 through dilution with water; 2, according to production requirements, dip-coating for two times or three times; and 3, the thickness of a coating layer being 1-2 mm. White molds of the technology method have good wettability, good coating and hanging property, high strength and good air permeability.

Description

Technical field [0001] The invention relates to a coating formulation, in particular to a coating formulation for lost foam casting and a process method thereof. Background technique [0002] In the prior art, the coating formula for lost foam casting has poor wettability with white molds, poor coating properties, low strength, and poor air permeability. Summary of the invention [0003] In order to solve the above problems, the present invention provides a coating formula for lost foam casting with good wettability, good coating properties, high strength and good air permeability and a process method thereof. [0004] The composition of the coating formulation for lost foam casting of the present invention is as follows: [0005] Bauxite 45-65%, silica sol 1-5%, quartz powder 20-50%, phenolic resin 1-5%, white latex 1-5%, sodium bentonite 1-5%, isopropanol 0.1%, JFC : 0.1%, CMC: 0.3-0.5%. [0006] Preferably, the composition of the coating formulation for lost foam casting is as fol...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 李复旺
Owner 翼城县福旺铸造实业有限公司
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