CN104226893B - A kind of lost foam casting coating and preparation method thereof - Google Patents

A kind of lost foam casting coating and preparation method thereof Download PDF

Info

Publication number
CN104226893B
CN104226893B CN201410430807.9A CN201410430807A CN104226893B CN 104226893 B CN104226893 B CN 104226893B CN 201410430807 A CN201410430807 A CN 201410430807A CN 104226893 B CN104226893 B CN 104226893B
Authority
CN
China
Prior art keywords
lost foam
foam casting
solution
coating
casting coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410430807.9A
Other languages
Chinese (zh)
Other versions
CN104226893A (en
Inventor
浦巧生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wujiang Hydraulic Components Foundry Co Ltd
Original Assignee
Wujiang Hydraulic Components Foundry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wujiang Hydraulic Components Foundry Co Ltd filed Critical Wujiang Hydraulic Components Foundry Co Ltd
Priority to CN201410430807.9A priority Critical patent/CN104226893B/en
Publication of CN104226893A publication Critical patent/CN104226893A/en
Application granted granted Critical
Publication of CN104226893B publication Critical patent/CN104226893B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of lost foam casting coating and preparation method thereof.Coating is made up of mica powder, silica flour, Ludox, water, vegetable oil, alum, calcium carbonate, n-butanol, rosin and alkyl benzene sulphonate; Described mica powder, silica flour and calcium carbonate all cross 300 mesh sieves.Preparation method for coating is: rosin is placed in n-butanol, slowly be heated to 40-50 DEG C, after rosin dissolves completely, add after calcium carbonate fully stirs and obtain solution A, obtain suspension B after mica powder and silica flour fully being mixed with Ludox, obtain solution C by soluble in water for alkyl benzene sulphonate, after solution A and suspension B are fully mixed, add solution C, finally add alum and carry out being mixed to get lost foam casting coating.Lost foam casting coating raw material sources of the present invention are extensive, and production cost is low, and preparation method is simple, and the cast(ing) surface obtained is smooth, not scab.

Description

A kind of lost foam casting coating and preparation method thereof
Technical field
The present invention relates to a kind of lost foam casting coating, belong to casting technology field.
Background technology
Different from common sand cast paint, coating for dispellable mould casting is not be coated on casting mold die cavity, but is coated on foamed polystyrene pattern.When foamed polystyrene pattern is replaced by liquid metal, what in fact coating played is casting mold effect, thus has saying of " namely coating being casting mold ".During cast, a large amount of gases that foamed plastics thermal decomposition produces can will be discharged outside casting mold by space between fireproof coating and dry sand.
When carrying out evaporative pattern castings production, foam can produce a large amount of gas.If the gas permeability of coating is bad, the foundry goods produced will be made to produce a large amount of pores, foundry goods is scrapped.If the refractoriness do not had, foundry goods will be made to produce scab, thus cause metalworking difficulty even to scrap.If the cold strength do not had, the coating on evaporative pattern will be made cracking to occur or peel off, thus generation scab or coating interlayer make foundry goods scrap.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of intensity is high, the lost foam casting coating of good permeability and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of lost foam casting coating, is made up of the raw material of following parts by weight: mica powder 80-100 part, silica flour 80-100 part, Ludox 4-8 part, water 15-18 part, vegetable oil 10-15 part, alum 18-22 part, calcium carbonate 3-9 part, n-butanol 10-15 part, rosin 2-3 part and alkyl benzene sulphonate 1-3 part; Described mica powder, silica flour and calcium carbonate all cross 300 mesh sieves.
Described a kind of lost foam casting coating, the weight ratio of described mica powder and silica flour is 1:1.
Described a kind of lost foam casting coating, in described silica flour, the content of silica is greater than 98%.
Described a kind of lost foam casting coating, the weight ratio of described rosin and n-butanol is 1:5.
Described a kind of lost foam casting coating, described Ludox is alkaline silica sol, and its 20 DEG C of viscosity are 4.5-5.0*10 -3pas.
The preparation method of described a kind of lost foam casting coating, rosin is placed in n-butanol, slowly be heated to 40-50 DEG C, after rosin dissolves completely, add after calcium carbonate fully stirs and obtain solution A, after mica powder and silica flour fully being mixed with Ludox, obtain suspension B, solution C is obtained by soluble in water for alkyl benzene sulphonate, after solution A and suspension B fully being mixed, add solution C, finally add alum and carry out being mixed to get lost foam casting coating.
The beneficial effect that the present invention reaches:
Lost foam casting coating raw material sources of the present invention are extensive, production cost is low, preparation method is simple, and adopt resistant to elevated temperatures Ludox as binding agent, bond effect is good, add mica powder and alum, improve coating intensity under the high temperature conditions, feed particles is careful, and coating is easily peeled off, thus make the cast(ing) surface that obtains smooth, not scab.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1
In the present embodiment, a kind of lost foam casting coating, is made up of the raw material of following parts by weight: mica powder 80 parts, silica flour 80 parts, Ludox 4 parts, 18 parts, water, vegetable oil 15 parts, 18 parts, alum, 9 parts, calcium carbonate, n-butanol 10 parts, rosin 2 parts and alkyl benzene sulphonate 3 parts; Described mica powder, silica flour and calcium carbonate all cross 300 mesh sieves.
Wherein, in described silica flour, the content of silica is greater than 98%, and described Ludox is alkaline silica sol, and its 20 DEG C of viscosity are 5.0*10 -3pas.
The preparation method of described a kind of lost foam casting coating, rosin is placed in n-butanol, slowly be heated to 50 DEG C, after rosin dissolves completely, add after calcium carbonate fully stirs and obtain solution A, after mica powder and silica flour fully being mixed with Ludox, obtain suspension B, solution C is obtained by soluble in water for alkyl benzene sulphonate, after solution A and suspension B fully being mixed, add solution C, finally add alum and carry out being mixed to get lost foam casting coating.
Embodiment 2
In the present embodiment, a kind of lost foam casting coating, is made up of the raw material of following parts by weight: mica powder 100 parts, silica flour 100 parts, Ludox 8 parts, 15 parts, water, vegetable oil 10 parts, 22 parts, alum, 3 parts, calcium carbonate, n-butanol 15 parts, rosin 3 parts and alkyl benzene sulphonate 1 part; Described mica powder, silica flour and calcium carbonate all cross 300 mesh sieves.
Wherein, in described silica flour, the content of silica is greater than 98%, and described Ludox is alkaline silica sol, and its 20 DEG C of viscosity are 4.5*10 -3pas.
The preparation method of described a kind of lost foam casting coating, rosin is placed in n-butanol, slowly be heated to 40 DEG C, after rosin dissolves completely, add after calcium carbonate fully stirs and obtain solution A, after mica powder and silica flour fully being mixed with Ludox, obtain suspension B, solution C is obtained by soluble in water for alkyl benzene sulphonate, after solution A and suspension B fully being mixed, add solution C, finally add alum and carry out being mixed to get lost foam casting coating.
Embodiment 3
In the present embodiment, a kind of lost foam casting coating, is made up of the raw material of following parts by weight: mica powder 95 parts, silica flour 95 parts, Ludox 6 parts, 16 parts, water, vegetable oil 13 parts, 20 parts, alum, 7 parts, calcium carbonate, n-butanol 10 parts, rosin 2 parts and alkyl benzene sulphonate 3 parts; Described mica powder, silica flour and calcium carbonate all cross 300 mesh sieves.
Wherein, in described silica flour, the content of silica is greater than 98%, and described Ludox is alkaline silica sol, and its 20 DEG C of viscosity are 5.0*10 -3pas.
The preparation method of described a kind of lost foam casting coating, rosin is placed in n-butanol, slowly be heated to 45 DEG C, after rosin dissolves completely, add after calcium carbonate fully stirs and obtain solution A, after mica powder and silica flour fully being mixed with Ludox, obtain suspension B, solution C is obtained by soluble in water for alkyl benzene sulphonate, after solution A and suspension B fully being mixed, add solution C, finally add alum and carry out being mixed to get lost foam casting coating.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.

Claims (5)

1. a lost foam casting coating, it is characterized in that, be made up of the raw material of following parts by weight: mica powder 80-100 part, silica flour 80-100 part, Ludox 4-8 part, water 15-18 part, vegetable oil 10-15 part, alum 18-22 part, calcium carbonate 3-9 part, n-butanol 10-15 part, rosin 2-3 part and alkyl benzene sulphonate 1-3 part; Described mica powder, silica flour and calcium carbonate all cross 300 mesh sieves;
The preparation method of described coating is, rosin is placed in n-butanol, slowly be heated to 40-50 DEG C, after rosin dissolves completely, add after calcium carbonate fully stirs and obtain solution A, after mica powder and silica flour fully being mixed with Ludox, obtain suspension B, solution C is obtained by soluble in water for alkyl benzene sulphonate, after solution A and suspension B fully being mixed, add solution C, finally add alum and carry out being mixed to get lost foam casting coating.
2. a kind of lost foam casting coating according to claim 1, is characterized in that, the weight ratio of described mica powder and silica flour is 1:1.
3. a kind of lost foam casting coating according to claim 1, is characterized in that, in described silica flour, the content of silica is greater than 98%.
4. a kind of lost foam casting coating according to claim 1, is characterized in that, the weight ratio of described rosin and n-butanol is 1:5.
5. a kind of lost foam casting coating according to claim 1, is characterized in that, described Ludox is alkaline silica sol, and its 20 DEG C of viscosity are 4.5-5.0*10-3Pas.
CN201410430807.9A 2014-08-29 2014-08-29 A kind of lost foam casting coating and preparation method thereof Active CN104226893B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410430807.9A CN104226893B (en) 2014-08-29 2014-08-29 A kind of lost foam casting coating and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410430807.9A CN104226893B (en) 2014-08-29 2014-08-29 A kind of lost foam casting coating and preparation method thereof

Publications (2)

Publication Number Publication Date
CN104226893A CN104226893A (en) 2014-12-24
CN104226893B true CN104226893B (en) 2016-03-23

Family

ID=52216295

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410430807.9A Active CN104226893B (en) 2014-08-29 2014-08-29 A kind of lost foam casting coating and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104226893B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105363992A (en) * 2015-10-21 2016-03-02 和县科嘉阀门铸造有限公司 Valve lost foam casting coating
CN105817570A (en) * 2016-05-27 2016-08-03 马鞍山市兴隆铸造有限公司 Modified quartz-based mica powder full mold paint easy to smear and preparation method thereof
CN105834354A (en) * 2016-05-27 2016-08-10 马鞍山市兴隆铸造有限公司 High-hardness anti-cracking mica powder modified silica matrix EPC coating and preparation method thereof
CN108941443B (en) * 2017-05-22 2020-04-21 湖北润阳新能源有限公司 Cast plate release agent and preparation method thereof
CN107497992B (en) * 2017-10-16 2020-02-14 湖南长高新材料股份有限公司 Lost foam casting coating and preparation method and use method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497105A (en) * 2009-03-12 2009-08-05 深圳市景鼎现代科技有限公司 Cast form water borne coating and technique for preparing the same
CN102179473A (en) * 2011-05-11 2011-09-14 李华山 Lost foam casting composite coating
CN102248120A (en) * 2011-04-11 2011-11-23 中方阀业淅川制造有限公司 Low thermoconductive paint for casting lost foam of thin wall cast

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6007435B2 (en) * 2012-10-02 2016-10-12 岡崎ヒュッテナス・アルバータス化成株式会社 Casting mold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497105A (en) * 2009-03-12 2009-08-05 深圳市景鼎现代科技有限公司 Cast form water borne coating and technique for preparing the same
CN102248120A (en) * 2011-04-11 2011-11-23 中方阀业淅川制造有限公司 Low thermoconductive paint for casting lost foam of thin wall cast
CN102179473A (en) * 2011-05-11 2011-09-14 李华山 Lost foam casting composite coating

Also Published As

Publication number Publication date
CN104226893A (en) 2014-12-24

Similar Documents

Publication Publication Date Title
CN104226893B (en) A kind of lost foam casting coating and preparation method thereof
CN105859309B (en) A kind of dispersive air brick and preparation method thereof
CN103506566B (en) For the coating and preparation method thereof of lost foam casting
CN103920852A (en) Precision casting process of large casting
CN105618680A (en) Full mold casting technique for diesel engine cylinder body
CN102248120B (en) Low thermoconductive paint for casting lost foam of thin wall cast
CN102357647B (en) Environmentally-friendly magnesia sand for casting and preparation process thereof
CN104014728B (en) A kind of blast-furnace cinder alcohol-base foundry coating and preparation method thereof
CN102632196A (en) Lost foam casting (LFC) method without roasting by using precise paraffin wax model sample and high-performance coating shell mould
CN102672104A (en) Precision casting method for pouring evanescent mold through high-performance coating foam and mold laminating paraffin
CN104014719A (en) High-performance alcohol-base casting paint and production method thereof
CN101524739A (en) Precision-investment casting method
CN103771426B (en) A kind of take diatomite as the method for raw material low-firing porous cristobalite
CN101412076A (en) A kind of precision casting technique of ceramic shell lost foam
CN102688984A (en) Casting process using evanescent mode
CN104399882A (en) Secondary moulding method in V-process casting technology for producing casing-type aluminum alloy castings
CN103084540B (en) A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel
CN102873262A (en) Lost foam coating and preparation method thereof
CN103464684A (en) Precise investment casting method
CN105522103A (en) Carbon-nanofiber-enhanced light low-carbon-residue water-based paint for evaporative-pattern casting and manufacturing method thereof
CN103752809B (en) A kind of method eliminating aluminium alloy castings hole defect
CN103909211B (en) A kind of from peeling off paint specially for disappearing cast mold
JP2019520219A (en) Fire-resistant coating composition for molding on temporary molds or cores for steel casting operations
CN103008534A (en) Novel heat insulation multilayer coating for common medium carbon steel casting in metal casting production
CN104259383B (en) A kind of core repair paint

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model