CN108941443B - Cast plate release agent and preparation method thereof - Google Patents

Cast plate release agent and preparation method thereof Download PDF

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Publication number
CN108941443B
CN108941443B CN201710361586.8A CN201710361586A CN108941443B CN 108941443 B CN108941443 B CN 108941443B CN 201710361586 A CN201710361586 A CN 201710361586A CN 108941443 B CN108941443 B CN 108941443B
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release agent
parts
casting plate
carbon black
casting
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CN108941443A (en
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程先清
刘克宇
徐进
陈健
罗旭
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HUBEI SHUANGDENG RUNYANG NEW ENERGY Co.,Ltd.
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Hubei Runyang New Energy Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C3/00Selection of compositions for coating the surfaces of moulds, cores, or patterns

Abstract

The invention relates to a casting plate release agent which comprises the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 1.5-2.2 parts of cork powder, 0.4-0.5 part of functional additive and 94.9-95.4 parts of water, wherein the functional additive is composed of carbon black material and aluminum potassium sulfate dodecahydrate. The invention also provides a preparation method of the casting plate release agent. The casting plate release agent provided by the invention has strong adhesive force, high temperature resistance, heat preservation and smooth ventilation, and can improve the casting quality of a grid and improve the production efficiency.

Description

Cast plate release agent and preparation method thereof
Technical Field
The invention relates to a casting plate release agent and a preparation method thereof, belonging to the technical field of casting release agents.
Background
The grid is one of the core components of the lead-acid storage battery, in the lead-acid storage battery, the grid is used as a carrier of an active substance and plays roles of skeleton supporting and active substance adhesion, and meanwhile, the grid also plays roles of current collection, current collection and current transmission as a current conductor. Most grids in the lead-acid battery industry are made from lead-based alloys by gravity casting.
The release agent is sprayed in the inner cavity of the mold to play the roles of heat preservation, lubrication, thickness adjustment and the like. The release agent mainly comprises powder, a suspending agent, a functional assistant and a solvent. The powder material is usually sodium silicate or bone glue (low-purity gelatin peptide protein) + polyvinyl alcohol, the suspending agent is cork powder, the solvent is water, and the functional assistant can obviously improve the service performance of the release agent.
The release agent without the functional additive generally has the problem of poor durability, the release agent needs to be sprayed for 1 time in about 4 hours, air holes, broken ribs and the like are easily generated in the casting process, and the good functional additive can improve the casting quality of the grid and improve the production efficiency.
Therefore, there is a need for a mold release agent for casting plates and a method for preparing the same to overcome the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cast plate release agent and a preparation method thereof.
The invention is realized by the following steps:
the invention provides a casting plate release agent which comprises the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 1.5-2.2 parts of cork powder, 0.4-0.5 part of functional additive and 94.9-95.4 parts of water, wherein the functional additive is composed of carbon black material and aluminum potassium sulfate dodecahydrate.
Further, the carbon black material includes gas black and acetylene black.
Further, the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is (0.12-0.20): (0.20-0.28)
Further, the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is 3: 7.
Further, the casting plate release agent comprises the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 2.0 parts of cork powder, 0.4 part of functional assistant and 94.9-95.4 parts of water.
Further, the particle size of the cork powder is 150-200 meshes.
The invention also provides a preparation method of the casting plate release agent, which comprises the following steps:
the method comprises the following steps: adding water into an aluminum pot, and heating;
step two: heating water to 85-90 ℃, adding bone glue and polyvinyl alcohol into an aluminum pot, and continuously heating and uniformly stirring;
step three: adding the cork powder into an aluminum pot while continuously stirring;
step four: adding functional auxiliary agent consisting of carbon black material and aluminum potassium sulfate dodecahydrate after boiling, and stirring uniformly to fully dissolve the functional auxiliary agent;
step five: and stopping heating after the boiling time is more than 5 minutes, and cooling to obtain the casting plate release agent.
The invention has the following beneficial effects:
the cast plate release agent has strong adhesion, high temperature resistance, heat preservation and smooth ventilation, can improve the grid casting quality and improve the production efficiency.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a casting plate release agent which comprises the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 1.5-2.2 parts of cork powder, 0.4-0.5 part of functional additive and 94.9-95.4 parts of water, wherein the functional additive is composed of carbon black material and aluminum potassium sulfate dodecahydrate. In the preferred embodiment, the casting plate mold release agent comprises the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 2.0 parts of cork powder, 0.4 part of functional assistant and 94.9-95.4 parts of water.
Wherein the carbon black material comprises gas black and acetylene black, and the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is (0.12-0.20): (0.20-0.28). In actual production, the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is adjusted according to different grid thicknesses. In the preferred embodiment, the weight ratio of the carbon black material to the potassium aluminum sulfate dodecahydrate is 3: 7.
In the raw materials of the casting plate release agent, water is used as a solvent, so that all components are uniformly dispersed; the bone glue has good adhesiveness, and the service life of the release agent can be prolonged; the polyvinyl alcohol can promote the full mixing of all the components; the cork powder mainly plays roles of heat preservation and exhaust, the particle size of the cork powder is 150-200 meshes, and good air permeability is ensured; the carbon black material is used for improving the high temperature resistance of the release agent and improving the release effect.
The invention also provides a preparation method of the casting plate release agent, which comprises the following steps:
the method comprises the following steps: adding water into an aluminum pot, and heating.
Step two: heating water to 85-90 deg.C, adding bone glue and polyvinyl alcohol into aluminum pot, heating and stirring.
Step three: cork powder was added to an aluminum pot while stirring was continued.
Step four: after boiling, functional assistant comprising carbon black material and potassium aluminum sulfate dodecahydrate is added and stirred uniformly to dissolve the mixture fully.
Step five: and stopping heating after the boiling time is more than 5 minutes, and cooling to obtain the casting plate release agent.
The following is illustrated by a number of specific examples:
the first embodiment is as follows: the casting plate release agent comprises the following raw materials in parts by weight: 0.7 part of bone glue, 1.8 parts of polyvinyl alcohol, 2.0 parts of cork powder, 0.4 part of functional additive (wherein the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is 3: 7) and 95.1 parts of water, and the release agent prepared according to the proportion has the advantages that the casting speed reaches 16.5 pieces/minute and the one-time die spraying service life reaches 8 hours for a lead-calcium grid with the thickness of 2.2mm, and the product has no problems of broken ribs, pores, heat cracking and the like.
Example two: the casting plate release agent comprises the following raw materials in parts by weight: 0.8 part of bone glue, 1.9 parts of polyvinyl alcohol, 2.2 parts of cork powder, 0.5 part of functional additive (wherein the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is 3: 7) and 95.4 parts of water, and the release agent prepared according to the proportion aims at the lead-calcium grid with the thickness of 2.2mm, the casting speed reaches 17.2 pieces/minute, the one-time die spraying service life reaches 8.2 hours, and the product has no problems of broken ribs, air holes, heat cracking and the like.
In conclusion, the cast plate release agent and the preparation method thereof have the advantages that the cast plate release agent is strong in adhesion, high-temperature resistant, heat-preserving and smooth in ventilation, the grid casting quality can be improved, and the production efficiency can be improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The casting plate mold release agent is characterized by comprising the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 1.5-2.2 parts of cork powder, 0.4-0.5 part of functional additive and 94.9-95.4 parts of water, wherein the functional additive is composed of carbon black material and aluminum potassium sulfate dodecahydrate, and the particle size of the cork powder is 150-200 meshes.
2. A casting plate mold release agent according to claim 1, wherein: the carbon black material includes gas black and acetylene black.
3. A casting plate mold release agent according to claim 1, wherein: the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is (0.12-0.20): (0.20-0.28).
4. A casting plate mold release agent according to claim 3, wherein: the weight ratio of the carbon black material to the aluminum potassium sulfate dodecahydrate is 3: 7.
5. A casting plate mold release agent according to claim 1, wherein: the casting plate release agent comprises the following raw materials in parts by weight: 0.7-0.8 part of bone glue, 1.5-1.9 parts of polyvinyl alcohol, 2.0 parts of cork powder, 0.4 part of functional assistant and 94.9-95.4 parts of water.
6. A method of preparing a mold release agent for casting slabs as claimed in any of claims 1 to 5, characterized by comprising the steps of:
the method comprises the following steps: adding water into an aluminum pot, and heating;
step two: heating water to 85-90 ℃, adding bone glue and polyvinyl alcohol into an aluminum pot, and continuously heating and uniformly stirring;
step three: adding the cork powder into an aluminum pot while continuously stirring;
step four: adding functional auxiliary agent consisting of carbon black material and aluminum potassium sulfate dodecahydrate after boiling, and stirring uniformly to fully dissolve the functional auxiliary agent;
step five: and stopping heating after the boiling time is more than 5 minutes, and cooling to obtain the casting plate release agent.
CN201710361586.8A 2017-05-22 2017-05-22 Cast plate release agent and preparation method thereof Active CN108941443B (en)

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Application Number Priority Date Filing Date Title
CN201710361586.8A CN108941443B (en) 2017-05-22 2017-05-22 Cast plate release agent and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201710361586.8A CN108941443B (en) 2017-05-22 2017-05-22 Cast plate release agent and preparation method thereof

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CN108941443B true CN108941443B (en) 2020-04-21

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689354A (en) * 1979-12-20 1981-07-20 Yuasa Battery Co Ltd Surface treatment of grid body mold for lead storage battery
CN102069142A (en) * 2010-12-23 2011-05-25 江苏理士电池有限公司 Releasing agent for cast-on strap (COS)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174812A (en) * 2013-09-30 2014-12-03 天能电池(芜湖)有限公司 Mold releasing agent and preparation method thereof
CN104226893B (en) * 2014-08-29 2016-03-23 吴江市液铸液压件铸造有限公司 A kind of lost foam casting coating and preparation method thereof
CN104496497B (en) * 2014-12-15 2016-02-03 滁州金诺实业有限公司 Vacuum pressing and casting aluminium alloy castings built-in pipe insulating refractory coating
CN104588573B (en) * 2015-01-09 2016-10-05 湖南大学 A kind of water-based graphite lubricant releasing agent
CN104841875A (en) * 2015-03-19 2015-08-19 安徽中能电源有限公司 Storage battery plate grid casting mould release agent and preparation method thereof
CN105033168A (en) * 2015-06-13 2015-11-11 张慧玲 Grid releasing agent
CN105363994A (en) * 2015-10-26 2016-03-02 无锡市永亿精密铸造有限公司 Releasing agent for precisely cast blades
CN105921689A (en) * 2016-06-13 2016-09-07 岳良珍 Demolding agent for lead-acid storage battery grid pouring mold cavity and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689354A (en) * 1979-12-20 1981-07-20 Yuasa Battery Co Ltd Surface treatment of grid body mold for lead storage battery
CN102069142A (en) * 2010-12-23 2011-05-25 江苏理士电池有限公司 Releasing agent for cast-on strap (COS)

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Address after: 441200 Xiangfan City, Hubei Province, Zaoyang City, Futian Road, South West Ring Road, West Side

Patentee after: HUBEI SHUANGDENG RUNYANG NEW ENERGY Co.,Ltd.

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