Stainless steel thin-wall part precoated sand and preparation method thereof

CN119456929APending Publication Date: 2025-02-18JIANGSU YAWEI POUNDRY MATERIAL TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202411653210.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The traditional coated sand shell casting process cannot effectively prepare stainless steel thin-walled parts, resulting in defects such as unforming castings, severe shrinkage, excessive stress cracking, and low yield and high cost.

Method used

A new stainless steel thin-walled sand formula, including raw sand, phenolic resin, curing agent, lubricant, aluminum powder, manganese dioxide and iron oxide black, can effectively delay the formation through specific mixing and heating processes. Stainless steel water-cooled sand shell.

Benefits of technology

The filmed sand shell casting of stainless steel thin-walled parts is realized, ensuring the complete molding and high quality of the castings, reducing production costs, and improving production capacity and energy utilization efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119456929A_ABST
    Figure CN119456929A_ABST
Patent Text Reader

Abstract

The invention relates to stainless steel thin-wall part precoated sand and a preparation method of the stainless steel thin-wall part precoated sand, and the stainless steel thin-wall part precoated sand comprises the following components: crude sand; the phenolic resin accounts for 2% of the mass of the crude sand; the curing agent accounts for 12% of the mass of the phenolic resin; the lubricant accounts for 0.4% of the mass of the crude sand; the aluminum powder accounts for 0.6-1% of the mass of the crude sand; manganese dioxide accounting for 0.2-0.6% of the mass of the crude sand; and the iron oxide black accounts for 0.2-0.6% of the mass of the crude sand. According to the invention, the precoated sand shell mold casting of the stainless steel thin-wall part can be realized, the molding completeness and high quality of the casting can be ensured, and the cost can be greatly saved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Preparation method of coated sand for austenitic stainless steel

    CN108176804A