CN110369674A - A kind of novel mould release agent for cast welding and preparation method thereof - Google Patents
A kind of novel mould release agent for cast welding and preparation method thereof Download PDFInfo
- Publication number
- CN110369674A CN110369674A CN201910667570.9A CN201910667570A CN110369674A CN 110369674 A CN110369674 A CN 110369674A CN 201910667570 A CN201910667570 A CN 201910667570A CN 110369674 A CN110369674 A CN 110369674A
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- CN
- China
- Prior art keywords
- release agent
- cast welding
- mould release
- water
- cork powder
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- 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.)
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Classifications
-
- 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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
-
- 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)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The present invention relates to a kind of mould release agent for cast welding, it includes water, sodium metasilicate, cork powder and diatomite, wherein the quality of water accounts for the 85-95% of the gross mass of mould release agent for cast welding, and the mass ratio of sodium metasilicate, cork powder and diatomite is (5-10): (5-10): 1.The granularity of cork powder is preferably more than 100 mesh.The present invention also provides the methods for preparing the mould release agent for cast welding, it is boiled including heating the sodium metasilicate of the water of half formula ratio and formula ratio under stiring, the cork powder of formula ratio is added, continues heating under stiring and boils, the diatomite of formula ratio is then added, continue heating under stiring to boil, then the water of the other half formula ratio is added, continues stirring to environment temperature, reactant is stood, upper layer suspension is taken after layering, obtains mould release agent for cast welding.Mould release agent for cast welding of the invention can improve demoulding efficiency, and by adding diatomite on a small quantity, can adsorb cork powder, delay cork powder carbonation rate, extend release agent and persistently use the time.
Description
Technical field
The present invention relates to Lead-acid Battery Technology fields, and in particular to a kind of novel mould release agent for cast welding and its preparation side
Method, the novel mould release agent for cast welding are particularly applicable to lead-acid storage battery busbar cast welding demoulding.
Background technique
In the manufacture of lead-acid accumulator, need to form busbar connector by progress tab cast welding by polar plate of lead acid storage battery simultaneously
Connection, the quality of busbar cast welding directly affect the quality of lead-acid accumulator.When cast welding, enter 460-500 DEG C of high-temperature lead liquid stream
In busbar connector mould cavity, lead liquid is by its high temperature by pole plate tab surface melting, and then water flowing keeps mold quick in mold
Cooling is detached from busbar connector from die cavity finally by mechanical tensile forces so that busbar connector is formed.If disengaging is unsmooth, such as converges
Row and die bonds, then machinery pull will lead to busbar connector pull, lack material, deformation, there is the defects of stomata, crackle.In general, casting
There is slight deformation phenomenon (such as tilting, bending) when cast welding operates, such as after discovery busbar connector demoulding in welder, just uses hairbrush
Release agent is dipped, is brushed several times in the cavity surface (temperature can be of about 300 DEG C at this time) just demoulded.Release agent contacts high temperature die cavity
After can evaporate, demoulding main component can be retained in cavity surface and form film, and subsequent cast welding is facilitated to demould.
The ingredient of release agent is usually bath of glass and cork powder mixture, and be creamy white suspension, and wherein bath of glass is silicon
The aqueous solution of sour sodium.Lead pond temperature is generally set in 460-500 DEG C in lead furnace when due to cast welding, and certain battery requests are set in
530 DEG C, the cork meal component of release agent is easy carbonization at such high temperatures, so that release agent lasting effect is short, cast welding work needs
Release agent frequently is added, time-consuming and laborious, production efficiency is low.Therefore, this field needs to make improvements release agent.
Summary of the invention
For above-mentioned technical problem present in this field, the purpose of the present invention is to provide a kind of novel cast welding demouldings
Agent can be used for lead-acid storage battery busbar cast welding demoulding, effectively facilitates the demoulding of cast welding part, improves demoulding efficiency, and prolong
Long release agent persistently uses the time.
Therefore, in a first aspect, the present invention provides a kind of mould release agent for cast welding, which includes water, sodium metasilicate, soft
Wood powder and diatomite, wherein the quality of water accounts for the 85-95% of the gross mass of the mould release agent for cast welding, sodium metasilicate, cork powder and diatom
The mass ratio of soil is (5-10): (5-10): 1.
In some preferred embodiments, which includes water, sodium metasilicate, cork powder and diatomite, wherein
The quality of water accounts for the 88-92% of the gross mass of the mould release agent for cast welding, and the mass ratio of sodium metasilicate, cork powder and diatomite is (8-
10):(8-10):1。
In a preferred specific embodiment, which includes water, sodium metasilicate, cork powder and diatom
Soil, the quality of water account for the 90% of the gross mass of the mould release agent for cast welding, and the mass ratio of sodium metasilicate, cork powder and diatomite is 10:10:
1。
In preferred embodiment of the invention, the granularity of cork powder is more than 100 mesh.Fine cork powder holds
Easily by kieselguhr adsorption, and mould release agent for cast welding of the present invention can extend release agent and persistently be that diatomite pair using the key of time
Cork powder absorption, delays cork powder carbonation rate.
In second aspect, the present invention provides a kind of method of mould release agent for cast welding for preparing first aspect, the preparation method packet
Include following steps:
(1) sodium metasilicate of the water of the half formula ratio of the mould release agent for cast welding and formula ratio is heated under stiring and is boiled；
(2) cork powder of formula ratio is added, continues heating under stiring and boils；
(3) diatomite of formula ratio is added, continues heating under stiring and boils；
(4) water of the other half formula ratio is added, continues stirring to environment temperature；
(5) reactant is stood, upper layer suspension is taken after layering, obtain the mould release agent for cast welding.
In some preferred embodiments, heating is boiled 20-30 minutes in step (1).
In some preferred embodiments, heating is boiled 20-30 minutes in step (2).
In some preferred embodiments, heating is boiled 30-60 minutes in step (3).
In some preferred embodiments, reactant is stood 10-20 minutes in step (5).
Water used in above-mentioned preparation method is deionized water, distilled water or pure water, and sodium metasilicate and diatomite are commercially available
It obtains, the granularity of cork powder is preferably more than 100 mesh.
In the above preparation method, the speed of stirring is not required particularly, as long as being able to achieve the abundant mixed of material
Conjunction, but in preferred embodiments, mixing speed can be, for example, 40-60rpm.
Beneficial effects of the present invention:
Mould release agent for cast welding of the invention is on the basis of conventional bath of glass (sodium metasilicate+water) and cork meal component, addition
Diatomite ingredient and be made, be creamy white suspension.
Sodium metasilicate ingredient itself will not pyrolytic.When by mould release agent for cast welding brushing die surface at high temperature,
Water evaporation in mould release agent for cast welding, remaining sodium metasilicate are uniformly adhered to die surface and form thin layer.It is being poured into mold
When high-temperature liquid metal (such as lead liquid) carries out cast welding, which can separate molten metal and mold wall, be convenient for metal (such as lead)
It is demoulded after solidification, while corrosion will not be generated to mold.
Mantle meal component helps to promote cast welding quality.In cast welding, 460-500 DEG C of high-temperature lead liquid stream is made to enter busbar connector
In mould cavity, lead liquid relies on its high temperature by tab surface melting.Since mold is usually steel, rapid heat dissipation, lead liquid temperature can
The problem of energy reduction is too fast, and tab surface does not melt, then will appear packet weldering and cold welding in cast welding.Cork meal component can be in steel
Thermal insulation layer is formed between die surface and casting metals liquid, decline the temperature of high-temperature lead liquid when cast welding will not too fast.This side
Face can prevent tab surface from failing sufficiently to melt, and influence firm welding, will form gas when on the other hand can prevent lead from solidifying
Hole both contributes to promote cast welding quality.
Diatomite ingredient itself also has effect resistant to high temperature, can also be used as release agent.Moreover, diatomite porosity
Greatly, absorption property is strong, itself can also be used as adsorbent, but usually air purification field be used to adsorb moisture in air or
Peculiar smell, or be used to filter the particulate contaminant in liquid material such as brewed wine in field of food industry.But in the present invention,
A small amount of addition diatomite, effect are absorption cork powders, delay cork powder carbonation rate, thus when extending release agent and persistently using
Between, this is the not routine application as adsorbent of diatomite where innovation of the invention.
Specific embodiment
Below by unrestricted exemplary embodiment, invention is further described in detail.Silicon used in embodiment
Sour sodium, cork powder and the commercially available acquisition of diatomite.
Embodiment 1
(density of sodium metasilicate is 2.33g/mL, folding for measurement 4500mL tap water (equivalent 4500g water) and 204mL sodium metasilicate
Close 476g sodium metasilicate), it is placed in the heating kettle of belt stirrer, the stirring by the mixture of tap water and sodium metasilicate in 50rpm is fast
It is heated to boiling under degree, then proceedes to agitating and heating and boil 25 minutes.Then, the 100 mesh cork powders of 476g are added into heating kettle,
Continue agitating and heating to boil 25 minutes.Then, 48g diatomite is added into heating kettle, continues agitating and heating and boils 45 minutes.So
Afterwards, 4500mL tap water is added into heating kettle, stops heating, is continued stirring to reaction mixture and is reached room temperature.Finally, making
Reaction mixture sat 10 minutes, upper layer milky suspension is taken after layering, and mould release agent for cast welding is made.
It with the moisture loss in whipping process is about 10% in view of boiling, mould release agent for cast welding obtained contains about
9000g water, 476g sodium metasilicate 476g cork powder and 48g diatomite, the quality of water account for the gross mass of mould release agent for cast welding about
90%, the mass ratio of sodium metasilicate, cork powder and diatomite is about 10:10:1.
Embodiment 2
4250mL tap water (equivalent 4250g water) and 303mL sodium metasilicate (equivalent 706g sodium metasilicate) are measured, band stirring is placed in
In the heating kettle of device, the mixture of tap water and sodium metasilicate is heated to boiling under the mixing speed of 50rpm, continues agitating and heating
It boils 20 minutes.Then, the 100 mesh cork powders of 706g are added into heating kettle, continues agitating and heating and boils 20 minutes.Then,
88g diatomite is added into heating kettle, continues agitating and heating and boils 30 minutes.Then, 4250mL is added into heating kettle certainly
Water stops heating, continues stirring to reaction mixture and reaches room temperature.Finally, making reaction mixture sat 10 minutes, after layering
Upper layer milky suspension is taken, mould release agent for cast welding is made.
It with the moisture loss in whipping process is about 10% in view of boiling, mould release agent for cast welding obtained contains about
8500g water, 706g sodium metasilicate 706g cork powder and 88g diatomite, the quality of water account for the gross mass of mould release agent for cast welding about
85%, the mass ratio of sodium metasilicate, cork powder and diatomite is about 8:8:1.
Embodiment 3
4750mL tap water (equivalent 4750g water) and 97.4mL sodium metasilicate (equivalent 227g sodium metasilicate) are measured, band is placed in and stirs
It mixes in the heating kettle of device, the mixture of tap water and sodium metasilicate is heated to boiling under the mixing speed of 50rpm, continue stirring and add
Heat is boiled 30 minutes.Then, the 100 mesh cork powders of 227g are added into heating kettle, continues agitating and heating and boils 30 minutes.So
Afterwards, 46g diatomite is added into heating kettle, continues agitating and heating and boils 60 minutes.Then, 4750mL is added into heating kettle
Tap water stops heating, continues stirring to reaction mixture and reaches room temperature.Finally, making reaction mixture sat 10 minutes, it is layered
After take upper layer milky suspension, be made mould release agent for cast welding.
It with the moisture loss in whipping process is about 10% in view of boiling, mould release agent for cast welding obtained contains about
9500g water, 227g sodium metasilicate 227g cork powder and 46g diatomite, the quality of water account for the gross mass of mould release agent for cast welding about
85%, the mass ratio of sodium metasilicate, cork powder and diatomite is about 5:5:1.
Embodiment 4
4500mL tap water (equivalent 4500g water) and 151.5mL sodium metasilicate (equivalent 353g sodium metasilicate) are measured, band is placed in and stirs
It mixes in the heating kettle of device, the mixture of tap water and sodium metasilicate is heated to boiling under the mixing speed of 50rpm, continue stirring and add
Heat is boiled 25 minutes.Then, the 100 mesh cork powders of 563g are added into heating kettle, continues agitating and heating and boils 25 minutes.So
Afterwards, 84g diatomite is added into heating kettle, continues agitating and heating and boils 50 minutes.Then, 4500mL is added into heating kettle
Tap water stops heating, continues stirring to reaction mixture and reaches room temperature.Finally, making reaction mixture sat 10 minutes, it is layered
After take upper layer milky suspension, be made mould release agent for cast welding.
It with the moisture loss in whipping process is about 10% in view of boiling, mould release agent for cast welding obtained contains about
9000g water, 353g sodium metasilicate 563g cork powder and 84g diatomite, the quality of water account for the gross mass of mould release agent for cast welding about
90%, the mass ratio of sodium metasilicate, cork powder and diatomite is about 6:9:1.
Use above specific example is expounded the present invention, is merely used to help understand the present invention, not to
The limitation present invention.The design of those skilled in the art according to the present invention can also be made and several simply push away
It drills, deform or replaces.These are deduced, deformation or alternative are also fallen into scope of the presently claimed invention.
Claims (9)
1. a kind of mould release agent for cast welding, which is characterized in that the mould release agent for cast welding includes water, sodium metasilicate, cork powder and diatomite,
Described in water quality account for the mould release agent for cast welding gross mass 85-95%, the sodium metasilicate, the cork powder and the silicon
The mass ratio of diatomaceous earth is (5-10): (5-10): 1.
2. mould release agent for cast welding according to claim 1, which is characterized in that the quality of the water accounts for the mould release agent for cast welding
The 88-92% of gross mass, the mass ratio of the sodium metasilicate, the cork powder and the diatomite are (8-10): (8-10): 1.
3. mould release agent for cast welding according to claim 2, which is characterized in that the quality of the water accounts for the mould release agent for cast welding
The 90% of gross mass, the mass ratio of the sodium metasilicate, the cork powder and the diatomite are 10:10:1.
4. mould release agent for cast welding according to any one of claim 1-3, which is characterized in that the water is deionized water, steams
Distilled water or pure water, the granularity of the cork powder is more than 100 mesh.
5. a kind of method for preparing mould release agent for cast welding described in any one of -4 according to claim 1, the preparation method include
Following steps:
(1) sodium metasilicate of the water of the half formula ratio of the mould release agent for cast welding and formula ratio is heated under stiring and is boiled；
(2) cork powder of formula ratio is added, continues heating under stiring and boils；
(3) diatomite of formula ratio is added, continues heating under stiring and boils；
(4) water of the other half formula ratio is added, continues stirring to environment temperature；
(5) reactant is stood, upper layer suspension is taken after layering, obtain the mould release agent for cast welding.
6. preparation method according to claim 5, which is characterized in that heating is boiled 20-30 minutes in step (1).
7. preparation method according to claim 5, which is characterized in that heating is boiled 20-30 minutes in step (2).
8. preparation method according to claim 5, which is characterized in that heating is boiled 30-60 minutes in step (3).
9. preparation method according to claim 5, which is characterized in that the reactant is stood 10-20 in step (5)
Minute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910667570.9A CN110369674A (en) | 2019-07-23 | 2019-07-23 | A kind of novel mould release agent for cast welding and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667570.9A CN110369674A (en) | 2019-07-23 | 2019-07-23 | A kind of novel mould release agent for cast welding and preparation method thereof |
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Citations (6)
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|---|---|---|---|---|
| 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) |
| CN102794387A (en) * | 2012-08-17 | 2012-11-28 | 沭阳县壹陆捌助剂经营部 | Release agent for lead-acid battery cast-welding and preparation method thereof |
| 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 |
| 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 |
| CN104588571A (en) * | 2013-10-31 | 2015-05-06 | 青岛泰浩达碳材料有限公司 | Preparation method for mold release agent |
| CN105655520A (en) * | 2015-12-29 | 2016-06-08 | 湖州品创孵化器有限公司 | Storage battery electrode plate and production method thereof |
-
2019
- 2019-07-23 CN CN201910667570.9A patent/CN110369674A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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) |
| CN102794387A (en) * | 2012-08-17 | 2012-11-28 | 沭阳县壹陆捌助剂经营部 | Release agent for lead-acid battery cast-welding and preparation method thereof |
| 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 |
| CN104588571A (en) * | 2013-10-31 | 2015-05-06 | 青岛泰浩达碳材料有限公司 | Preparation method for mold release agent |
| 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 |
| CN105655520A (en) * | 2015-12-29 | 2016-06-08 | 湖州品创孵化器有限公司 | Storage battery electrode plate and production method thereof |
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Application publication date: 20191025 |
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