CN107511448A - A kind of lead accumulator grid casting releasing agent and preparation method thereof - Google Patents
A kind of lead accumulator grid casting releasing agent and preparation method thereof Download PDFInfo
- Publication number
- CN107511448A CN107511448A CN201710656638.4A CN201710656638A CN107511448A CN 107511448 A CN107511448 A CN 107511448A CN 201710656638 A CN201710656638 A CN 201710656638A CN 107511448 A CN107511448 A CN 107511448A
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- Prior art keywords
- releasing agent
- lead accumulator
- grid casting
- accumulator grid
- resistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/04—Casting metal electric battery plates or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of lead accumulator grid casting releasing agent and preparation method thereof.A kind of lead accumulator grid casting releasing agent, include the raw material of following mass parts：100 parts of water；4~6 parts of cork powder；1.5~2.5 parts of volcanic ash；1.5~2.5 parts of sodium metasilicate；0.15~0.20 part of phenolic resin.High temperature resistant, stickiness are high, are not easy to be carbonized, the less volcanic ash of particle by adding for lead accumulator grid casting releasing agent of the present invention, the too fast of releasing agent is reduced to come off, increase the durability of releasing agent, the time interval of jet mould when extending grid casting, improves operating efficiency, improves the stability of grid grammes per square metre.Add resol resins, with heat resistance, flame resistance, water resistance and insulating properties advantage, acid resistance is preferable, and alkali resistance is poor, mechanically and electrically functional, the demoulding is easy, the rate of transform is low, adds different component during synthesis, can obtain the phenol-formaldehyde resin modified of Various Functions, with different good characteristics, such as alkali resistance, wearability, oil resistivity, corrosion resistance.
Description
Technical field
The present invention relates to storage battery production technical field, more particularly to a kind of lead accumulator grid casting releasing agent and
Its preparation method.
Background technology
Grid is one of core component of lead-acid accumulator, in lead-acid accumulator, carrier of the grid as active material,
Play a part of skeletal support and adhesion activity material, meanwhile, grid also as electric current conductor play afflux, conflux with it is defeated
The effect of stream, in addition, grid can also make balanced current distribution in active material as the equal fluid of pole plate.
At present, the processing technology of grid mainly has casting and die casting, and most grids are to pass through weight by lead-containing alloy
Power casting is made, and is cast to after the lead-containing alloy fusing that will have been configured in the mould of grid.In casting, releasing agent is must not
The auxiliary product that can lack, on the one hand, releasing agent causes grid to be more prone to deviate from from mould；On the other hand, because mould is
Metal is made, therefore the characteristics of rapid heat dissipation be present, and dies cavity groove is narrow shallow in addition so that the alloy liquid of fusing is difficult to fill
Full mould, therefore, releasing agent is sprayed between die surface and cast alloys can ensure the mobility of alloy, guarantee moulding plate
The ratio of briquetting of grid.
Therefore, the quality of releasing agent directly affects the quality of grid casting, and releasing agent configuration is bad, not only influences demoulding effect
Rate, influence production efficiency, it is also possible to cause grid to produce stomata or crackle etc. when casting, influence current conductivity energy.
The main component of existing demoulding agent prescription is cork powder, plays insulation and buffer action, makes lead liquid in flow process
It is middle to keep more stable temperature, avoid lead liquid temperature degree fluctuated, prevent grid from being molded.Cork powder particles belong to larger and added
Add raw material, and cork powder high temperature resistance is poor, continuous carbon distribution in use, and easily carbonization comes off, and stickiness is poor in other words for tack,
Cause releasing agent durability poor, and because cork powder is easy to fall off, so needing frequent brush film, sprays releasing agent, influence to produce
Efficiency, cause product stability poor；Grid top layer porosity is coarse, causes battery pole plates are too fast to be failed by sulfuric acid corrosion, contracting
Short battery cycle life.
For example the Chinese invention patent that Authorization Notice No. is CN102873265B discloses a kind of casting lead acid storage battery plants
Grid releasing agent and its compound method, the releasing agent are made up of following material and part by weight：100 ± 2 parts of water, cork powder 4.2
± 0.1 part, 2.4 ± 0.05 parts of sodium metasilicate, 0.5 ± 0.03 part of phosphoric acid, ripe 0.45 ± 0.02 part of rubber powder, aerosil 0.08
± 0.02 part.The compound method of above-mentioned casting lead acid battery grid releasing agent, comprises the following steps：(1) by formula ratio
Deionized water, sodium metasilicate, ripe rubber powder, which are added in Aluminum Drum, to carry out being heated to 80 ± 2 DEG C of temperature；(2) slowly by the cork of formula ratio
Powder, aerosil are added in resulting solution and are stirred continuously, until cork powder and aerosil are dispersed in
In water；(3) continue heating to be boiled with soft fire 30 minutes；(4) phosphoric acid of formula ratio is added thereto after stopping heating and is sufficiently stirred 2
~3 minutes
The content of the invention
The present invention is directed to the deficiencies in the prior art, there is provided a kind of durability is good, grid grammes per square metre stability is good
Lead accumulator grid casting releasing agent and preparation method thereof.
A kind of lead accumulator grid casting releasing agent, include the raw material of following mass parts：
Preferably, described lead accumulator grid casting releasing agent, the raw material composition of following mass parts is included：
Preferably, the μ S/cm of the electrical conductivity of the water≤10.
Preferably, the fineness of the cork powder is 500 mesh.
Preferably, the fineness of the volcanic ash is 800 mesh.
Preferably, in use, the phenolic resin is first dissolved in wiring solution-forming in organic solvent.General concentration is 12%
~15% phenol resin solution, it is mostly 12% or 15% that in the market, which sells prewired phenol resin solution concentration,.Used in dissolving
Organic solvent need to be water miscible because releasing agent of the present invention, using water as solvent, the organic solvent can be methanol, second
Alcohol (analysis is pure), acetone etc., improve solution mixing uniformity.
Present invention also offers the preparation method of described lead accumulator grid casting releasing agent, comprise the following steps：
(1) cork powder and volcanic ash are well mixed；
(2) mixture of step (1) is put into the water of heating and be well mixed, be cooled to room temperature；
(3) add sodium metasilicate and stir；
(4) maturation；
(5) add phenolic resin and stir；
(6) 24~48h is stood.
Preferably, the coolant-temperature gage of heating is 60 DEG C~76.7 DEG C in step (2).
Preferably, the maturation time is 24h.
The preparation method is first affine using powdered cork powder and volcanic ash mixing, adds 60 DEG C~76.7 DEG C hot water
When can fully permeate the microcellular structure of cork powder and volcanic ash, make releasing agent denseness, even concentration after allotment, improve releasing agent
The anti-charing being attached on heating mould.Follow-up substep adds the solution of ratio, improves allotment releasing agent mixing velocity, carries
High mixing uniformity.
High temperature resistant, stickiness are high, be not easy to be carbonized, particle is smaller by adding for lead accumulator grid casting releasing agent of the present invention
Volcanic ash, reduce the too fast of releasing agent and come off, increase the durability of releasing agent, when extending grid casting between the time of jet mould
Every raising operating efficiency, the stability for improving grid grammes per square metre.Resol resins are added, there is heat resistance, flame resistance, water-fast
Property and insulating properties advantage, acid resistance it is preferable, alkali resistance is poor, mechanically and electrically functional, and the demoulding is easy, and the rate of transform is low, synthesis
When add different component, the phenol-formaldehyde resin modified of Various Functions can be obtained, there is different good characteristics, such as alkali resistance, wear-resisting
Property, oil resistivity, corrosion resistance etc..
Brief description of the drawings
Fig. 1 is the grammes per square metre distribution map of 200 grids of the releasing agent of embodiment 1 production.
Fig. 2 is the grammes per square metre distribution map of 200 grids of the releasing agent of comparative example 1 production.
Embodiment
Embodiment 1
Releasing agent is prepared according to the following steps：
(1) volcanic ash (HESS companies of the U.S. life that fineness is the cork powder 50g of 500 mesh and fineness is 800 mesh is first weighed
Production, similarly hereinafter) 20g, the dry stirring of two kinds of powder 2 minutes is well mixed；
(2) the μ S/cm of electrical conductivity≤10 distilled water is heated to temperature as 60 DEG C~76.7 DEG C, then by step (1)
Mixture is slowly put into the 1000g water of heating, continuously stir 15 minutes it is mixed above uniformly, then stand makes for more than 6 hours
It is cooled to room temperature；
(3) 20g weighed sodium metasilicate is put into and stirred, mixing time 10 minutes；
(4) stand, maturation 24 hours, wait the infiltration of cork powder and solvent；
(5) concentration weighed is added as 12% phenol resin solution 15g (containing phenolic resin 1.8g) and is stirred, and is stirred
Mix the time 10 minutes；
(6) 24 hours are stood, cork powder and solvent is permeated completely.
Embodiment 2
Releasing agent is prepared according to the following steps：
(1) the volcanic ash 15g that fineness is the cork powder 40g of 500 mesh and fineness is 800 mesh is first weighed, two kinds of powder are done
Stirring 2 minutes, it is well mixed；
(2) the μ S/cm of electrical conductivity≤10 distilled water is heated to temperature as 60 DEG C~76.7 DEG C, then by step (1)
Mixture is slowly put into the 1000g water of heating, continuously stir 15 minutes it is mixed above uniformly, then stand makes for more than 6 hours
It is cooled to room temperature；
(3) 25g weighed sodium metasilicate is put into and stirred, mixing time 10 minutes；
(4) stand, maturation 24 hours, wait the infiltration of cork powder and solvent；
(5) concentration weighed is added as 12% phenol resin solution 16.7g (containing phenolic resin 2g) and is stirred, and is stirred
Mix the time 10 minutes；
(6) 24 hours are stood, cork powder and solvent is permeated completely.
Embodiment 3
Releasing agent is prepared according to the following steps：
(1) the volcanic ash 25g that fineness is the cork powder 60g of 500 mesh and fineness is 800 mesh is first weighed, two kinds of powder are done
Stirring 2 minutes, it is well mixed；
(2) the μ S/cm of electrical conductivity≤10 distilled water is heated to temperature as 60 DEG C~76.7 DEG C, then by step (1)
Mixture is slowly put into the 1000g water of heating, continuously stir 15 minutes it is mixed above uniformly, then stand makes for more than 6 hours
It is cooled to room temperature；
(3) 15g weighed sodium metasilicate is put into and stirred, mixing time 10 minutes；
(4) stand, maturation 24 hours, wait the infiltration of cork powder and solvent；
(5) concentration weighed is added as 15% phenol resin solution 10g (containing phenolic resin 1.5g) and is stirred, and is stirred
Mix the time 10 minutes；
(6) 24 hours are stood, cork powder and solvent is permeated completely.
Comparative example 1
The releasing agent preparation method tested as a comparison：
(1) distilled water for measuring the μ S/cm of 1000g electrical conductivity≤10 is poured into aluminum pot.
(2) gelatine 14g, polyvinyl alcohol 4g are weighed to add in aluminum pot, aluminum pot is placed in lead melting furnace and heated.
(3) it is heated to seething with excitement, is stirred continuously in heating, solid matter is fully dissolved.
(4) stirs while adding uniformly while hot toward the cork powder 60g that addition fineness in clear liquid is 500 mesh, is cooled to room
Warm standby is used.
(5) storage period is not rancid for principle with releasing agent, but at most must not exceed 72h.
Embodiment 4
(1) using the releasing agent prepared in embodiment 1~3 as experimental group, using the releasing agent prepared in comparative example 1 as pair
According to group, then produced as a trial respectively, as a result as shown in table 1, for control group, experimental group jet mould number subtracts significantly
Few, (complementary modulus refers in process of production complementary modulus, when grid grammes per square metre occur and starting unstable, carries out the supplement complementary modulus of releasing agent.)
Number is also reduced, and illustrates that experimental group releasing agent durability is more preferable.
Table 1
(2) the ingot stripper that prepared by embodiment 1 in statistical experiment group respectively and control group (releasing agent prepared by comparative example 1)
Preceding 200 grids produced in 1 are repeated, as a result as shown in Fig. 1 (embodiment 1) and Fig. 2 (comparative example 1) and table 2, through statistical
Analysis, the extreme difference (difference of maxima and minima) of experimental group is 2.6g, smaller than the 4.0g of control group, and the standard deviation of experimental group
For 0.67, also 0.95 than control group is small, illustrates that the grammes per square metre of releasing agent production grid using experimental group is relatively stable.
Table 2
| Embodiment 1 | Comparative example 1 | |
| Average value | 169.3g | 169.9g |
| Maximum | 170.9g | 172.0g |
| Minimum value | 168.3g | 168.0g |
| Extreme difference | 2.6g | 4.0g |
| Standard deviation | 0.67 | 0.95 |
Claims (9)
1. a kind of lead accumulator grid casting releasing agent, it is characterised in that include the raw material of following mass parts：
2. lead accumulator grid casting releasing agent as claimed in claim 1, it is characterised in that include the original of following mass parts
Material composition：
3. lead accumulator grid casting releasing agent as claimed in claim 1, it is characterised in that electrical conductivity≤10 of the water
μS/cm。
4. lead accumulator grid casting releasing agent as claimed in claim 1, it is characterised in that the fineness of the cork powder is
500 mesh.
5. lead accumulator grid casting releasing agent as claimed in claim 1, it is characterised in that the fineness of the volcanic ash is
800 mesh.
6. lead accumulator grid casting releasing agent as claimed in claim 1, it is characterised in that in use, the phenolic aldehyde tree
Fat is first dissolved in wiring solution-forming in organic solvent.
7. the preparation method of the lead accumulator grid casting releasing agent as described in claim 1~6 is any, it is characterised in that
Comprise the following steps：
(1) cork powder and volcanic ash are well mixed；
(2) mixture of step (1) is put into the water of heating and be well mixed, be cooled to room temperature；
(3) add sodium metasilicate and stir；
(4) maturation；
(5) add phenolic resin and stir；
(6) 24~48h is stood.
8. preparation method as claimed in claim 7, it is characterised in that the coolant-temperature gage of heating is 60 DEG C~76.7 in step (2)
℃。
9. preparation method as claimed in claim 7, it is characterised in that the maturation time is 24h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710656638.4A CN107511448B (en) | 2017-08-03 | 2017-08-03 | A kind of lead storage battery grid casting release agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710656638.4A CN107511448B (en) | 2017-08-03 | 2017-08-03 | A kind of lead storage battery grid casting release agent and preparation method thereof |
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| CN107511448A true CN107511448A (en) | 2017-12-26 |
| CN107511448B CN107511448B (en) | 2019-08-02 |
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ID=60722281
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788002A (en) * | 2018-08-29 | 2018-11-13 | 昆山帝邦铸造科技有限公司 | A kind of heat-resisting aluminium alloy casting mold-releasing agent and preparation method thereof and application method |
| CN108788003A (en) * | 2018-08-29 | 2018-11-13 | 昆山帝邦铸造科技有限公司 | A kind of powdered mold release agents and preparation method thereof and application method |
| CN108838318A (en) * | 2018-07-16 | 2018-11-20 | 昆山帝邦铸造科技有限公司 | A kind of high temperature resistant releasing agent used for casting and preparation method thereof and application method |
| CN114407247A (en) * | 2021-12-15 | 2022-04-29 | 河南省秀源液压科技有限公司 | Release agent capable of solving problem of deep-fried dough cake inside rubber pipe product and spraying equipment |
| CN116673432A (en) * | 2023-05-30 | 2023-09-01 | 江苏理士电池有限公司 | Release agent for casting grid of lead-acid storage battery and preparation method thereof |
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| CN102873265A (en) * | 2012-09-10 | 2013-01-16 | 超威电源有限公司 | Release agent used for pouring lead-acid storage battery grid and preparation method of release agent |
| 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 |
| CN105710286A (en) * | 2016-04-06 | 2016-06-29 | 天能电池集团（安徽）有限公司 | Releasing agent for casting of lead-acid storage battery grid |
| CN106141075A (en) * | 2016-08-27 | 2016-11-23 | 安徽龙泉硅材料有限公司 | A kind of sand casting releasing agent utilizing precipitated silica to prepare |
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| JPS557098B2 (en) * | 1976-09-25 | 1980-02-22 | ||
| CN102873265A (en) * | 2012-09-10 | 2013-01-16 | 超威电源有限公司 | Release agent used for pouring lead-acid storage battery grid and preparation method of release agent |
| 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 |
| CN105710286A (en) * | 2016-04-06 | 2016-06-29 | 天能电池集团（安徽）有限公司 | Releasing agent for casting of lead-acid storage battery grid |
| CN106141075A (en) * | 2016-08-27 | 2016-11-23 | 安徽龙泉硅材料有限公司 | A kind of sand casting releasing agent utilizing precipitated silica to prepare |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838318A (en) * | 2018-07-16 | 2018-11-20 | 昆山帝邦铸造科技有限公司 | A kind of high temperature resistant releasing agent used for casting and preparation method thereof and application method |
| CN108838318B (en) * | 2018-07-16 | 2019-12-24 | 昆山帝邦铸造科技有限公司 | High-temperature-resistant casting mold release agent and preparation method and use method thereof |
| CN108788002A (en) * | 2018-08-29 | 2018-11-13 | 昆山帝邦铸造科技有限公司 | A kind of heat-resisting aluminium alloy casting mold-releasing agent and preparation method thereof and application method |
| CN108788003A (en) * | 2018-08-29 | 2018-11-13 | 昆山帝邦铸造科技有限公司 | A kind of powdered mold release agents and preparation method thereof and application method |
| CN114407247A (en) * | 2021-12-15 | 2022-04-29 | 河南省秀源液压科技有限公司 | Release agent capable of solving problem of deep-fried dough cake inside rubber pipe product and spraying equipment |
| CN116673432A (en) * | 2023-05-30 | 2023-09-01 | 江苏理士电池有限公司 | Release agent for casting grid of lead-acid storage battery and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107511448B (en) | 2019-08-02 |
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Address after: 313100 Coal Mountain Industrial Park, Changxing County, Huzhou City, Zhejiang Province Applicant after: Tianneng Battery Group Co., Ltd. Address before: 313100 Coal Mountain Industrial Park, Changxing County, Huzhou City, Zhejiang Province Applicant before: Tianneng Battery Group Co., Ltd. |
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