CN105344932A - Lost foam coating and production method thereof - Google Patents

Lost foam coating and production method thereof Download PDF

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Publication number
CN105344932A
CN105344932A CN201510922414.4A CN201510922414A CN105344932A CN 105344932 A CN105344932 A CN 105344932A CN 201510922414 A CN201510922414 A CN 201510922414A CN 105344932 A CN105344932 A CN 105344932A
Authority
CN
China
Prior art keywords
lost foam
production
organic
coating
foam 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.)
Pending
Application number
CN201510922414.4A
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Chinese (zh)
Inventor
黎光正
陈涛
汪波
邓大军
郑德明
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.)
Panzhihua Gangcheng Group Co Ltd
Original Assignee
Panzhihua Gangcheng Group 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 Panzhihua Gangcheng Group Co Ltd filed Critical Panzhihua Gangcheng Group Co Ltd
Priority to CN201510922414.4A priority Critical patent/CN105344932A/en
Publication of CN105344932A publication Critical patent/CN105344932A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C3/00Selection of compositions for coating the surfaces of moulds, cores, or patterns

Abstract

The invention discloses a lost foam coating and a production method thereof, and in particular discloses a lost foam coating applied to the field of lost foam casting and a production method thereof. The invention discloses a lost foam coating which can be uniformly sprayed and brushed to the surface of a model and can remain good air permeability. The lost foam coating comprises uncalcined forsterite powder, an organic material, bentonite and white emulsion. The invention further discloses a production method of the lost foam coating which can be uniformly sprayed and brushed to the surface of the model and can remain good air permeability. The production method comprises the following steps: A, diluting bentonite and the organic material through boiled water at the temperature exceeding 90 DEG C; B, feeding white emulsion and stirring for half an hour; C, feeding uncalcined forsterite powder and stirring for more than 3 hours. According to the lost foam coating and the production method thereof, uncalcined forsterite powder is provided, so that good suspension performance is achieved, the coating performance is outstanding, and the air permeability is high; the lost foam coating coated to a lost foam cannot be layered and fall off after being naturally dried by the air, and the steel leakage can be prevented after boxing and pouring.

Description

Lost foam paint and preparation method thereof
Technical field
The present invention relates to a kind of lost foam paint and preparation method thereof, the method for especially a kind of disappearance lost foam paint for lost foam casting field and preparation method thereof.
Background technology
Lost foam casting is the new technology of a kind of Near net shape, precise forming, this technique.Without the need to delivery, without die joint, without core, thus foundry goods does not have overlap, burr and pattern draft, and decreases the scale error caused due to core combination.The expense of the thick minimizing machining of cast(ing) surface, compares with conventional casting methods, can reduce by the machining time of 40% to 50%, therefore be widely used.Lost foam casting is the process of an operation versus busy, comprise the operations such as drawing mapping, sample making, modelling, stenciling coating, baking, vanning, smelting cast, mould preparation, heat treatment, and the control of each operation there is larger impact to casting quality.Because drawing mapping, sample making and modelling can be tested to it by mistake measurement model size and outward appearance, therefore coating link seems particularly important.Small-scale lost foam casting, as the difference according to casting material, multiple coating is adopted to carry out preparing and spary, then operation seems relative complex and high expensive, the lost foam paint of prior art, carry out preparing and after stirring, place about 10 minutes, the obvious layering of coating suspension be stirred, and sediment fraction easily hardens, the mode of spary is while stirring adopted to carry out stenciling coating, cause die surface spary uneven, treat that placing dope layer a little just has obscission, need to repair in time, vanning after etc. to be cast, find that there is bleed-out phenomenon to occur when the later stage is poured.Therefore also do not have one evenly to model surface, can keep good gas permeability by spary in prior art, can effectively prevent dope layer obscission, lost foam paint of bleed-out phenomenon and preparation method thereof occurs when being poured to avoid the later stage.
Summary of the invention
Technical problem to be solved by this invention is to provide one evenly to model surface, can keep good gas permeability by spary, can effectively prevent dope layer obscission, and the lost foam paint of bleed-out phenomenon occurs when being poured to avoid the later stage.
The present invention solves the lost foam paint that its technical problem adopts, comprise forsterite powder, organic material, bentonite and the white glue with vinyl of not calcining, the quality proportioning of described forsterite powder, organic material, bentonite and white glue with vinyl of not calcining is: 150 parts, forsterite powder, organic material 2 to 3 parts, bentonite 3 to 5 parts, white glue with vinyl 6 to 8 parts.
Further, described organic material is CMC.
Further, the granule size of the described forsterite powder do not calcined is 300 orders.
The present invention also provides one evenly to model surface, can keep good gas permeability by spary, can effectively prevent dope layer obscission, and the preparation method of the lost foam paint of bleed-out phenomenon occurs when being poured to avoid the later stage.
The present invention solves the preparation method of the lost foam paint that its technical problem adopts, and comprises following step:
A, bentonite and organic material adopted more than 90 DEG C boiling water dilutions;
B, add white glue with vinyl stir half an hour;
C, add forsterite powder and stir more than 3 hours.
The invention has the beneficial effects as follows: adopt the forsterite powder do not calcined, its material mainly chemical composition is (Mg, Fe) 2siO 4be that coating has good suspendability, be coated with ability strong, good permeability, spreads upon on evaporative pattern, naturally dries rear without layering and obscission, without bleed-out phenomenon after vanning cast.The mixing that white glue with vinyl is convenient to multiple material is on the one hand bonding, makes coating on the other hand more easily in suspension, strengthens it and be coated with performance.
Detailed description of the invention
Lost foam paint of the present invention, comprise forsterite powder, organic material, bentonite and the white glue with vinyl of not calcining, the quality proportioning of described forsterite powder, organic material, bentonite and white glue with vinyl of not calcining is: 150 parts, forsterite powder, organic material 2 to 3 parts, bentonite 3 to 5 parts, white glue with vinyl 6 to 8 parts.Adopt the forsterite powder do not calcined, its material mainly chemical composition is (Mg, Fe) 2siO 4be that coating has good suspendability, be coated with ability strong, good permeability, spreads upon on evaporative pattern, naturally dries rear without layering and obscission, without bleed-out phenomenon after vanning cast.The mixing that white glue with vinyl is convenient to multiple material is on the one hand bonding, makes coating on the other hand more easily in suspension, strengthens it and be coated with performance.
Described organic material is CMC.CMC is adopted can effectively to reduce costs as organic material.
The granule size of the described forsterite powder do not calcined is 300 orders.Adopting granule size to be that 300 object forsterite powder can strengthen the ability that is coated with of coating by force further when reducing costs, improving gas permeability.
The preparation method of lost foam paint of the present invention, comprises following step:
A, bentonite and organic material adopted more than 90 DEG C boiling water dilutions;
B, add white glue with vinyl stir half an hour;
C, add the forsterite powder do not calcined and stir more than 3 hours.Place more than 4 hours after stirring in suspension, outward appearance feels relatively fluffy, and the coating spary this configured can evenly be coated with at die surface, naturally dries rear without layering and obscission, without bleed-out phenomenon after vanning cast.
Adopt the forsterite powder do not calcined, its material mainly chemical composition is (Mg, Fe) 2siO 4be that coating has good suspendability, be coated with ability strong, good permeability.The mixing that white glue with vinyl is convenient to multiple material is on the one hand bonding, makes coating on the other hand more easily in suspension, strengthens it and be coated with performance.

Claims (4)

1. lost foam paint, it is characterized in that: comprise forsterite powder, organic material, bentonite and the white glue with vinyl of not calcining, the quality proportioning of described forsterite powder, organic material, bentonite and white glue with vinyl of not calcining is: 150 parts, forsterite powder, organic material 2 to 3 parts, bentonite 3 to 5 parts, white glue with vinyl 6 to 8 parts.
2. lost foam paint as claimed in claim 1, is characterized in that: described organic material is CMC.
3. lost foam paint as claimed in claim 1, is characterized in that: the granule size of the described forsterite powder do not calcined is 300 orders.
4. make the method for lost foam paint as claimed in claim 1, it is characterized in that: comprise following step:
A, bentonite and organic material adopted more than 90 DEG C boiling water dilutions;
B, add white glue with vinyl stir half an hour;
C, add forsterite powder and stir more than 3 hours.
CN201510922414.4A 2015-12-11 2015-12-11 Lost foam coating and production method thereof Pending CN105344932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510922414.4A CN105344932A (en) 2015-12-11 2015-12-11 Lost foam coating and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510922414.4A CN105344932A (en) 2015-12-11 2015-12-11 Lost foam coating and production method thereof

Publications (1)

Publication Number Publication Date
CN105344932A true CN105344932A (en) 2016-02-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510922414.4A Pending CN105344932A (en) 2015-12-11 2015-12-11 Lost foam coating and production method thereof

Country Status (1)

Country Link
CN (1) CN105344932A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107457350A (en) * 2017-06-21 2017-12-12 河池市森机械有限责任公司 The preparation method of cast paint

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1748900A (en) * 2005-10-28 2006-03-22 高申明 Anhydrous water-base forsterite powder paint
CN102653640A (en) * 2012-05-04 2012-09-05 宜昌福泉镁橄榄石有限责任公司 Magnesium olivine modified powder coating and preparation method thereof
CN102896274A (en) * 2012-10-30 2013-01-30 宜昌科博耐火材料有限公司 Preparation method of water-based paint cast by high-chromium cast iron lost foam
CN103008547A (en) * 2012-12-26 2013-04-03 江苏多为泵业股份有限公司 Resin sand shell mold casting method of automotive turbocharger shell
CN103042168A (en) * 2012-12-30 2013-04-17 安岳县金龙机械制造有限公司 Lost foam casting coating and preparation method thereof
CN103551496A (en) * 2013-10-29 2014-02-05 新疆华莎能源股份有限公司 Anhydrous water-based boltonite powdery coating

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1748900A (en) * 2005-10-28 2006-03-22 高申明 Anhydrous water-base forsterite powder paint
CN102653640A (en) * 2012-05-04 2012-09-05 宜昌福泉镁橄榄石有限责任公司 Magnesium olivine modified powder coating and preparation method thereof
CN102896274A (en) * 2012-10-30 2013-01-30 宜昌科博耐火材料有限公司 Preparation method of water-based paint cast by high-chromium cast iron lost foam
CN103008547A (en) * 2012-12-26 2013-04-03 江苏多为泵业股份有限公司 Resin sand shell mold casting method of automotive turbocharger shell
CN103042168A (en) * 2012-12-30 2013-04-17 安岳县金龙机械制造有限公司 Lost foam casting coating and preparation method thereof
CN103551496A (en) * 2013-10-29 2014-02-05 新疆华莎能源股份有限公司 Anhydrous water-based boltonite powdery coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
林彬荫等: "《耐火材料原料》", 31 October 2015 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107457350A (en) * 2017-06-21 2017-12-12 河池市森机械有限责任公司 The preparation method of cast paint

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Application publication date: 20160224