Lost foam coating with high fire resistance and preparation method of lost foam coating

A technology of flame retardancy and lost foam, which is applied in the field of lost foam production, can solve the problems affecting the smoothness of the outer surface of cast parts, easy to generate residue, poor flame retardancy, etc., and achieve high adhesion, good flame retardancy, The effect of improving product quality

Inactive Publication Date: 2016-05-25
ANHUI YONGCHANG CASTING
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many of the existing technologies of lost foam are not formed as a whole at one time, and can only be completed by bonding and molding, and there are coatings on the outside. The coatings used for bonding of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high flame-retardant coating for lost foam, made of the following components in parts by weight,

[0020] 30 parts of magnesia powder, 25 parts of pearl powder, 15 parts of mica powder, 3 parts of petroleum coke powder, 3 parts of silica sol, 1 part of white latex, 0.3 part of triethanolamine, 0.1 part of sodium carboxymethyl cellulose, and 1 part of adsorbent , 0.3 parts of flame retardant; the flame retardant includes 5 parts of perchlorocyclopentane, 35 parts of chlorendic acid, 1 part of melamine cyanurate and 3 parts of potassium gold chloride by weight.

[0021] The adsorbent comprises 5 parts of zeolite powder, 5 parts of sepiolite powder and 10 parts of bentonite by weight.

[0022] A preparation method of a flame-retardant high lost foam coating, comprising the following steps,

[0023] 1) Grinding and screening magnesia powder, pearl powder, mica powder, petroleum coke powder, sodium carboxymethyl cellulose, and adsorbent respectively, and the size of the s...

Embodiment 2

[0027] A high flame-retardant coating for lost foam, made of the following components in parts by weight,

[0028] 35 parts of magnesia powder, 28 parts of pearl powder, 20 parts of mica powder, 6 parts of petroleum coke powder, 6 parts of silica sol, 3 parts of white latex, 0.4 parts of triethanolamine, 0.3 parts of sodium carboxymethyl cellulose, and 4 parts of adsorbent 1 part of flame retardant; the flame retardant includes 6 parts of perchlorocyclopentane, 4 parts of chlorendic acid, 1.5 parts of melamine cyanurate and 3.5 parts of potassium gold chloride by weight.

[0029] The adsorbent comprises 6 parts of zeolite powder, 6 parts of sepiolite powder and 15 parts of bentonite in parts by weight.

[0030] A preparation method of a flame-retardant high lost foam coating, comprising the following steps,

[0031] 1) Grinding and screening magnesia powder, pearl powder, mica powder, petroleum coke powder, sodium carboxymethyl cellulose, and adsorbent respectively, and the s...

Embodiment 3

[0035] A high flame-retardant coating for lost foam, made of the following components in parts by weight,

[0036] 40 parts of magnesia powder, 30 parts of pearl powder, 25 parts of mica powder, 8 parts of petroleum coke powder, 8 parts of silica sol, 5 parts of white latex, 0.5 parts of triethanolamine, 0.6 parts of sodium carboxymethyl cellulose, and 6 parts of adsorbent 1. 2 parts of flame retardant; the flame retardant includes 8 parts of perchlorocyclopentane, 5 parts of chlorendic acid, 2 parts of melamine cyanurate and 4 parts of potassium gold chloride by weight.

[0037] The adsorbent comprises 8 parts by weight of zeolite powder, 8 parts of sepiolite powder and 20 parts of bentonite.

[0038] A preparation method of a flame-retardant high lost foam coating, comprising the following steps,

[0039] 1) Grinding and screening magnesia powder, pearl powder, mica powder, petroleum coke powder, sodium carboxymethyl cellulose, and adsorbent respectively, and the size of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a lost foam coating with high fire resistance and a preparation method of the lost foam coating, and relates to the technical field of production of lost foam. The lost foam coating is prepared from the following components in parts by weight: 30-40 parts of magnesite powder, 25-30 parts of pearl powder, 15-25 parts of mica powder, 3-8 parts of petroleum coke powder, 3-8 parts of silica sol, 1-5 parts of white emulsion, 0.3-0.5 part of triethanolamine, 0.1-0.6 part of sodium carboxymethylcellulose, 1-6 parts of adsorbent and 0.3-2 parts of fire retardant; and the fire retardant comprises, by weight, 5-8 parts of perchloropentacyclodecane, 3-5 parts of chlorendic acid, 1-2 parts of melamine cyanurate and 3-4 parts of potassium gold chloride. The preparation method comprises the following steps: grinding and sieving the magnesite powder, the pearl powder, the mica powder, the petroleum coke powder, the sodium carboxymethylcellulose and the adsorbent; adding water in the adsorbent, the fire retardant, the sodium carboxymethylcellulose and the triethanolamine and mixing; and fully mixing the magnesite powder, the pearl powder, the mica powder, the petroleum coke powder, the silica sol and the white emulsion. During casting of workpieces, the lost foam coating is high in adhesive, free of residue, relatively good in fire resistance and high in stability; and production quality can be improved.

Description

Technical field: [0001] The invention relates to the technical field of lost foam production, in particular to a high flame retardancy lost foam coating and a preparation method thereof. Background technique: [0002] Lost foam casting is a full-type casting of foam plastic mold using dry sand without binder combined with vacuum technology. The main names in China are "dry sand solid mold casting", "negative pressure solid mold casting", or EPC casting for short. Lost foam casting is one of the most advanced casting methods in the world at present. It is known as a "revolution" in the history of casting, and it is called green casting in the 21st century at home and abroad. Many of the existing technologies of lost foam are not formed as a whole at one time, and need to be completed by bonding and molding, and there is a coating on the outside. The coating used for bonding of lost foam in the prior art is relatively simple, and the viscosity is not high , poor flame retard...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22C3/00B22C9/04
CPCB22C3/00B22C9/04
Inventor 李新
Owner ANHUI YONGCHANG CASTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap