CN102527927A - Grid mould release agent - Google Patents
Grid mould release agent Download PDFInfo
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- CN102527927A CN102527927A CN2012100451971A CN201210045197A CN102527927A CN 102527927 A CN102527927 A CN 102527927A CN 2012100451971 A CN2012100451971 A CN 2012100451971A CN 201210045197 A CN201210045197 A CN 201210045197A CN 102527927 A CN102527927 A CN 102527927A
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Abstract
The invention discloses a grid mould release agent, which comprises the following components in percentage by mass: 95.0-97.0 percent of water, 0.1-0.3 percent of polytetrafluoroethylene, 2.0-4.0 percent of cork powder, 0.15-0.2 percent of aluminum dihydrogen phosphate, 0.12-0.15 percent of adhesive and 0.2-0.35 percent of stabilizer. The mould release agent provided by the invention has the advantages of easiness in spray coating, superior adhesion, high temperature resistance, small surface tension, high pressure resistance, smooth exhaust and the like, is extremely suitable for a lead calcium alloy grid cast through gravity at a high temperature; phenomena of blowhole, cracks and the like of the grid can be extremely effectively reduced; meanwhile, mould spray frequency in a unit time can be reduced; and the production efficiency and the product quality are improved.
Description
Technical field
The present invention relates to a kind of releasing agent, in particular for the releasing agent of battery grid casting.
Background technology
Grid is the main building block of polar plate of lead acid storage battery, draws in the net and casts two kinds, and the effect of grid in battery mainly is to support active material; The carrier that serves as active material; Conduction compiles electric current, and electric current is evenly distributed on the active material, to improve the utilization rate of active material.Therefore, the quality of grid quality directly affects the overall performance of battery.Battery grid with casting is an example, and its technological process of production is following: the alloy preparation → fusing → grid mould and die preheating → jet mould → smooth → inspection → age-hardening of casting → prune.
Because of grid is influenced by the releasing agent cause for quality when casting; Often there are defectives such as pore, crackle, uneven thickness in product, because mould is that metal is processed, so there are the characteristics of rapid heat dissipation; It is narrow shallow to add the dies cavity groove, makes that the alloy liquid under the melting pan state is difficult to be full of mould.Ratio of briquetting for the grid that guarantees to cast must spray releasing agent between die surface and cast alloys.Releasing agent generally is sprayed on dies cavity, and main insulation, heat insulation, lubricated guarantees that alloy liquid is full of the effect of mould, and the thickness evenness to grid plays corrective action simultaneously.At present, the releasing agent that uses in the storage battery factory is generally formulated by cork powder, sodium metasilicate and water, and this releasing agent moulding is poor, be not durable, and is prone to cause unstable product quality, and production efficiency is low.
Summary of the invention
Problem to be solved by this invention just provides a kind of grid releasing agent, can effectively reduce the phenomenons such as pore, crackle of grid, can reduce the jet mould number of times in the unit interval simultaneously, enhances productivity, promotes product quality.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of grid releasing agent comprises that following component and each component mass percent are following:
Further, the each component mass percent is following:
Further, the each component mass percent is following:
Further, the each component mass percent is following:
Further, said adhesive is a gelatine.
Further, said stabilizing agent is a polyvinyl alcohol.
Further, said cork powder fineness is 400～700 orders.
Beneficial effect of the present invention:
1, the present invention adopts water, polytetrafluoroethylene (PTFE), aluminium dihydrogen phosphate, cork powder, adhesive, stabilizing agent to be mixed into emulsion according to a certain ratio, and heating, stirring, cooling back form releasing agent, are sprayed on die surface; Between die surface and cast alloys, form thermal insulation layer; Make the alloy of molten condition in mould, keep good flow, residual gas is discharged smoothly, in order to avoid cause the casting of grid bad; Play insulation and ventilation double action, and stop metal and mould bonding;
2, releasing agent provided by the present invention is prone to jet mould, high, the easy jet mould moulding and durable in use of adhesiveness; The adding of polytetrafluoroethylene (PTFE) can prolong the service life of releasing agent; Its engineering properties is softer; Have low-down surface ability, high lubricated not viscosity, electrical insulating property and good anti-aging endurance, and itself the people is not had toxicity, and can under temperature 200～260 degree environment, work for a long time; Do not adhere to any material, be easy to the demoulding;
3, invent the releasing agent that is provided and be prone to the jet mould good heat resistance, be difficult for carbonization under the high temperature user mode, use operating temperature up to 260 ℃, and good stability, mechanical strength is high, its physics, stable chemical performance; The adding of aluminium dihydrogen phosphate can improve the adhesive strength of releasing agent, has high anti-folding, resistance to compression, high temperature resistant, anti-vibration, anti-strip, high temperature resistant washing away after the oven dry, prolongs releasing agent service time;
To sum up; Releasing agent of the present invention has advantage such as be prone to spraying, tack is good, high temperature resistant, surface tension is little, anti-high pressure, exhaust are unobstructed; Be highly suitable for the lead-calcium alloy slab lattice of high temperature gravity casting; Can extremely effectively reduce the phenomenons such as pore, crackle of grid, can reduce the jet mould number of times in the unit interval simultaneously, enhance productivity and promote product quality.
The specific embodiment
The present invention provides a kind of grid releasing agent, comprises that following component and each component mass percent are following: water 95.0%～97.0%, polytetrafluoroethylene (PTFE) 0.1%～0.3%, cork powder 2.0%～4.0%, aluminium dihydrogen phosphate 0.15%～0.2%, adhesive 0.12%～0.15%, stabilizing agent 0.2%～0.35%.
Water is as solvent, carrier, dispersant, pore former;
Polytetrafluoroethylene (PTFE) mainly prolongs releasing agent service life, and its engineering properties is softer, have low-down surface can, be easy to the demoulding.
Aluminium dihydrogen phosphate can improve the adhesive strength of releasing agent, has high anti-folding, resistance to compression, high temperature resistant, anti-vibration, anti-strip, high temperature resistant washing away after the oven dry, prolongs releasing agent service time.
Cork powder can adopt import Portugal cork to make, and mainly plays heat-insulation and heat-preservation, exhaust, fire-retardant from putting out, and antistatic reaching on the grid surface forms frosting, increases its surface area; The cork powder fineness is 400～700 orders, 600 orders normally, and particle is thin, and the shaping beyond the region of objective existence is seen has bigger surface area.
Adhesive mainly adopts gelatine, and its bond performance is good, intensity is high, moisture is few, fast drying, cohere typing well, and crucial it is cheap, easy to use.
Stabilizing agent mainly adopts polyvinyl alcohol.
Embodiment one: a kind of grid releasing agent; The each component mass percent is following: water 95.0%, polytetrafluoroethylene (PTFE): 0.3%, cork powder 4.0%, aluminium dihydrogen phosphate 0.2%, adhesive 0.15%, stabilizing agent 0.35%; Mixing preparation forms releasing agent after becoming emulsion, heating, stirring, cooling according to the above ratio; Have advantage such as be prone to spraying, tack is good, high temperature resistant, surface tension is little, anti-high pressure, exhaust are unobstructed, be highly suitable for the lead-calcium alloy slab lattice of high temperature gravity casting, can extremely effectively reduce the phenomenons such as pore, crackle of grid; Can reduce simultaneously the jet mould number of times in the unit interval, enhance productivity and promote product quality.
Embodiment two: a kind of grid releasing agent; The each component mass percent is following: water 97.0%, polytetrafluoroethylene (PTFE): 0.1%, cork powder 2.4%, aluminium dihydrogen phosphate 0.18%, adhesive 0.12%, stabilizing agent 0.2%; Mixing preparation forms releasing agent after becoming emulsion, heating, stirring, cooling according to the above ratio; Have advantage such as be prone to spraying, tack is good, high temperature resistant, surface tension is little, anti-high pressure, exhaust are unobstructed, be highly suitable for the lead-calcium alloy slab lattice of high temperature gravity casting, can extremely effectively reduce the phenomenons such as pore, crackle of grid; Can reduce simultaneously the jet mould number of times in the unit interval, enhance productivity and promote product quality.
Embodiment three: a kind of grid releasing agent; The each component mass percent is following: water 96.0%, polytetrafluoroethylene (PTFE): 0.2%, cork powder 3.2%, aluminium dihydrogen phosphate 0.17%, adhesive 0.13%, stabilizing agent 0.3%; Mixing preparation forms releasing agent after becoming emulsion, heating, stirring, cooling according to the above ratio; Have advantage such as be prone to spraying, tack is good, high temperature resistant, surface tension is little, anti-high pressure, exhaust are unobstructed, be highly suitable for the lead-calcium alloy slab lattice of high temperature gravity casting, can extremely effectively reduce the phenomenons such as pore, crackle of grid; Can reduce simultaneously the jet mould number of times in the unit interval, enhance productivity and promote product quality.
The manufacture craft of above-mentioned releasing agent: water is heated to boiling, adds gelatine, polyvinyl alcohol thoroughly melts, and adds aluminium dihydrogen phosphate, cork powder boils 10min, during constantly stir, cross 100～120 mesh sieves, be cooled to below 40 ℃ for use.
Method for using: the grid mould is warmed to 130 ℃～180 ℃, if temperature Gao Shixu treats could spray releasing agent when temperature drops to qualified temperature, with the steel wire brush with the surperficial outwash of film tool; Treat that temperature begins to spray releasing agent in the time of 130 ℃～180 ℃; With the releasing agent that the prepares watering can of packing into, spray with 0.2～0.5Kpa air pressure, to make spray gun perpendicular to die surface during spraying; Evenly move spray gun, spray several repeatedly all over casting grid.The good mould of spraying if there is the part releasing agent to come off, need spray releasing agent again after casting a period of time, phenomenon such as avoid that misruning appears in grid, disconnected muscle, burr are big.
The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (7)
1. grid releasing agent is characterized in that: comprise that following component and each component mass percent are following:
2. a kind of grid releasing agent according to claim 1 is characterized in that:
3. a kind of grid releasing agent according to claim 1 is characterized in that:
4. a kind of grid releasing agent according to claim 1 is characterized in that:
5. according to each described a kind of grid releasing agent of claim 1 to 4, it is characterized in that: said adhesive is a gelatine.
6. according to each described a kind of grid releasing agent of claim 1 to 4, it is characterized in that: said stabilizing agent is a polyvinyl alcohol.
7. according to each described a kind of grid releasing agent of claim 1 to 4, it is characterized in that: said cork powder fineness is 400～700 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210045197 CN102527927B (en) | 2012-02-27 | 2012-02-27 | Grid mould release agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210045197 CN102527927B (en) | 2012-02-27 | 2012-02-27 | Grid mould release agent |
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| CN102527927A true CN102527927A (en) | 2012-07-04 |
| CN102527927B CN102527927B (en) | 2013-06-05 |
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| CN 201210045197 Active CN102527927B (en) | 2012-02-27 | 2012-02-27 | Grid mould release agent |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102989642A (en) * | 2012-09-19 | 2013-03-27 | 芜湖市鑫海橡塑制品有限责任公司 | Spraying application method of releasing agent |
| CN103341588A (en) * | 2013-05-28 | 2013-10-09 | 浙江天能动力能源有限公司 | Mold release agent used for lead acid battery grid casting and preparation method thereof |
| CN103480795A (en) * | 2013-08-30 | 2014-01-01 | 风帆股份有限公司 | Mould spraying agent for grid mould of lead-acid storage battery and preparation method thereof |
| CN103624211A (en) * | 2013-11-26 | 2014-03-12 | 河南超威电源有限公司 | Storage battery grid mold release agent and preparation method thereof |
| CN103706756A (en) * | 2012-09-29 | 2014-04-09 | 天能电池(芜湖)有限公司 | Film-spraying agent for pouring grid of lead-acid storage battery, and preparation method thereof |
| 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 |
| 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 |
| CN107081404A (en) * | 2017-03-31 | 2017-08-22 | 超威电源有限公司 | A kind of lead-acid accumulator cast welding releasing agent |
| CN107442740A (en) * | 2017-07-26 | 2017-12-08 | 合肥尚强电气科技有限公司 | Release agent for casting storage battery grid and preparation method thereof |
| CN107716903A (en) * | 2017-09-27 | 2018-02-23 | 济源市万洋绿色能源有限公司 | A kind of lead-acid accumulator cast welding releasing agent and preparation method thereof |
| CN108580846A (en) * | 2018-07-05 | 2018-09-28 | 苏州广型模具有限公司 | Releasing agent for aluminum alloy low-pressure casting |
| 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 |
| CN110293204A (en) * | 2019-08-05 | 2019-10-01 | 江西新威动力能源科技有限公司 | A kind of grid casting release agent and maturation technique |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873265B (en) * | 2012-09-10 | 2015-05-13 | 超威电源有限公司 | Release agent used for pouring lead-acid storage battery grid and preparation method of release agent |
| 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 |
| CN102989642A (en) * | 2012-09-19 | 2013-03-27 | 芜湖市鑫海橡塑制品有限责任公司 | Spraying application method of releasing agent |
| CN103706756A (en) * | 2012-09-29 | 2014-04-09 | 天能电池(芜湖)有限公司 | Film-spraying agent for pouring grid of lead-acid storage battery, and preparation method thereof |
| CN103341588A (en) * | 2013-05-28 | 2013-10-09 | 浙江天能动力能源有限公司 | Mold release agent used for lead acid battery grid casting and preparation method thereof |
| CN103341588B (en) * | 2013-05-28 | 2015-12-09 | 浙江天能动力能源有限公司 | Lead acid accumulator plate grid releasing agent used for casting and preparation method thereof |
| CN103480795B (en) * | 2013-08-30 | 2016-01-20 | 风帆股份有限公司 | A kind of grid mold for lead-acid storage jet mould agent and preparation method |
| CN103480795A (en) * | 2013-08-30 | 2014-01-01 | 风帆股份有限公司 | Mould spraying agent for grid mould of lead-acid storage battery and preparation method thereof |
| 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 |
| CN103624211B (en) * | 2013-11-26 | 2015-09-16 | 河南超威电源有限公司 | Storage battery grid mold release agent and preparation method thereof |
| CN103624211A (en) * | 2013-11-26 | 2014-03-12 | 河南超威电源有限公司 | Storage battery grid mold release 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 |
| 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 |
| CN107081404A (en) * | 2017-03-31 | 2017-08-22 | 超威电源有限公司 | A kind of lead-acid accumulator cast welding releasing agent |
| CN107081404B (en) * | 2017-03-31 | 2019-08-06 | 超威电源有限公司 | A kind of lead-acid accumulator cast welding release agent |
| CN107442740A (en) * | 2017-07-26 | 2017-12-08 | 合肥尚强电气科技有限公司 | Release agent for casting storage battery grid and preparation method thereof |
| CN107716903A (en) * | 2017-09-27 | 2018-02-23 | 济源市万洋绿色能源有限公司 | A kind of lead-acid accumulator cast welding releasing agent and preparation method thereof |
| CN108580846A (en) * | 2018-07-05 | 2018-09-28 | 苏州广型模具有限公司 | Releasing agent for aluminum alloy low-pressure casting |
| 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 |
| CN110293204A (en) * | 2019-08-05 | 2019-10-01 | 江西新威动力能源科技有限公司 | A kind of grid casting release agent and maturation technique |
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