CN109545565A - A kind of manufacturing method of solid-state aluminum electrolytic capacitor - Google Patents
A kind of manufacturing method of solid-state aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN109545565A CN109545565A CN201811315177.5A CN201811315177A CN109545565A CN 109545565 A CN109545565 A CN 109545565A CN 201811315177 A CN201811315177 A CN 201811315177A CN 109545565 A CN109545565 A CN 109545565A
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- sealing
- storage equipment
- vacuum
- manufacturing
- capacitor
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/04—Drying; Impregnating
Abstract
The invention discloses a kind of manufacturing methods of solid-state aluminum electrolytic capacitor.The manufacturing method includes cutting, nail volume, chemical conversion, impregnation, polymerization, the vertical sealing of group, burn-in test and packaging process, the solid capacitor stores in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical sealing, the vacuum degree for sealing vacuum storage equipment is -50 ~ -99Kpa, relative humidity≤35%RH, capacitor of taking from sealing vacuum storage equipment enters time≤60s of the vertical sealing process of group, fidelity sky storage time≤48h.The manufacturing method of the present invention, the moisture-proof baking oven high temperature of high temperature constant temperature is replaced to realize capacitor after high temperature polymerization by using vacuum sealed box, the moisture-proof storage of workpiece before the vertical sealing of group, it is lower relative to the drying box constant temperature storage energy consumption in existing method, day power consumption is reduced to 4 degree by original 108 degree, 96.30% is reduced, energy-saving effect is significant, and production cost can also significantly reduce.
Description
Technical field
The present invention relates to solid-state capacitor manufacturing technology fields, more particularly, to a kind of solid-state aluminum electrolytic capacitor
Manufacturing method.
Background technique
The production technology of solid-state capacitor is substantially: the vertical envelope of cutting-nail volume-chemical conversion-impregnation-polymerization-group at present
Mouth-burn-in test-packaging, wherein organizing vertical sealing process has strict requirements to ambient humidity, production firm is most of at present
The method used is: 85~105 DEG C of constant temperature store Moistureproof dehumidification in an oven, using large-scale dehumidifier that case external environment is relatively wet
Degree control is in 35%RH even 30%RH hereinafter, this method consumes a large amount of electric energy in process of production, and electric cost is very
Height, total production cost are also increase accordingly.
Therefore it provides a kind of energy consumption is small, and the solid-state capacitor production method of stable product quality is for solid-state capacitor
The energy-saving and emission-reduction of production have very important significance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome vertical sealing process middle ring is organized in existing solid-state capacitor production process
Energy consumption is high for border humidity control method, and defect and deficiency at high cost provide a kind of manufacturing method of solid-state aluminum electrolytic capacitor.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, the solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization to group
Vertical sealing, the vacuum degree of sealing vacuum storage equipment are -50~-99Kpa, relative humidity≤35%RH, from sealing vacuum storage
Capacitor of taking in equipment enters time≤60s of the vertical sealing process of group, fidelity sky storage time≤48h.
Group of the manufacturing method of the present invention after high temperature polymerization uses vacuum sealed box to replace high-temperature constant before founding sealing process
Capacitor workpiece after high temperature polymerization is placed in sealing vacuum storage equipment, vacuum tightness device configuration by the moisture-proof baking oven of temperature
There are vacuum meter and hygrometer, capacitor workpiece is realized by the vacuum degree and relative humidity of control sealing vacuum storage equipment
Dampproof effect, sealing vacuum storage equipment in equipment vacuum degree and ambient humidity have good retentivity, pass through vacuum
Pump takes the humid air in case away, and without heating, when taking workpiece, interval, which is vacuumized, can keep environmental requirement, is both reaching
To avoiding the product moisture absorption, satisfaction group founds sealing process to reducing production energy consumption and life under the premise of the strict demand of ambient humidity
Produce cost.
The vacuum degree and relative humidity of control sealing vacuum storage equipment are the moisture-proof dryings of capacitor after guaranteeing polymerization
Key parameter, control vacuum degree advantageously ensure that humid air can be extracted completely, guarantee the aridity of capacitor environment.
It controls capacitor of taking from sealing vacuum storage equipment and enters group time of vertical sealing process within 30s, have
Conducive to the capacitor moisture absorption for preventing closed storage.
Fidelity sky storage time of the invention is that capacitor is set before waiting group stands sealing in sealing vacuum storage after polymerisation
Time in standby.
Preferably, the vacuum degree of sealing vacuum storage equipment passes through between vacuum switch during the capacitor is taken
Disconnected property is kept, from normal pressure to the time of standard pressure≤60s.Control sealing vacuum storage equipment vacuum degree recovery time be in order to
Guarantee the stability of integrated environment, environmental stability is great for the influence of capacitor processing performance, will affect capacitor product
Final performance, environment is unstable, and the unstable properties of product that will cause of the humidity in capacitor workpiece storage environment are greatly reduced.
Preferably, the vacuum degree of the sealing vacuum storage equipment is -65Kpa~-99Kpa.
It is highly preferred that the vacuum degree of the sealing vacuum storage equipment is -65Kpa~-85Kpa.
The vacuum degree for sealing vacuum storage equipment is excessively high: equipment requirement is excessively high, wastes energy consumption；Vacuum degree is too low: environmental wet
Degree does not reach requirement, and performance is bad.
Preferably, the relative humidity of the sealing vacuum storage equipment is 25%RH~34%RH.
It is highly preferred that the relative humidity of the sealing vacuum storage equipment is 30%RH~34%RH.
Preferably, the vacuum degree of the sealing vacuum storage equipment is -65Kpa~-99Kpa, the sealing vacuum storage
The relative humidity of equipment is 25%RH~34%RH.
It is highly preferred that the vacuum degree of the sealing vacuum storage equipment is -65Kpa~-85Kpa, the sealing vacuum storage
The relative humidity for depositing equipment is 30%RH~34%RH.
Compared with prior art, the beneficial effects of the present invention are:
The present invention provides a kind of manufacturing methods of solid-state aluminum electrolytic capacitor, replace high temperature by using vacuum sealed box
The moisture-proof baking oven high temperature of constant temperature realizes capacitor after high temperature polymerization, the moisture-proof storage of workpiece before organizing vertical sealing, by controlling vacuum
Lower relative to the drying box constant temperature storage energy consumption in existing method in seal box, day power consumption is reduced to 4 by original 108 degree
Degree, reduces 96.30%, energy-saving effect is significant, and production cost can also significantly reduce.
Specific embodiment
The present invention is further illustrated With reference to embodiment, but embodiment the present invention is not done it is any
The restriction of form.Unless otherwise indicated, source chemicals used in the embodiment of the present invention are the source chemicals routinely bought.
The specification of the solid-state aluminum electrolytic capacitor of following embodiment and comparative examples is 6.3V330 μ F 5*8, production process are as follows:
Cutting-nail volume-vertical sealing-burn-in test-the packaging of chemical conversion-impregnation-polymerization-group.
Embodiment 1
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -65Kpa, relative humidity 34%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤30s, fidelity sky storage time 6h of the vertical sealing process of group.
Single batch products amount is 22000, and every batch of product is divided into 20 parts, i.e., it is vertical that each 1100 products carry out group
Sealing.
Product after polymerization is whole to be all put into room temperature closed box, first takes out a product (about 1100 from secondary by the gross
The vertical sealing of group only) is carried out, remaining product continues to be placed in seal box, and vacuumizes by using vacuum pump to it, closes
Close vacuum pump, seal case, before fidelity sky to lower a vertical sealing of product group, after successively take out a product every time to carry out group vertical
Sealing, until being fully completed the vertical sealing of group, overall process about 30S*20 times=600S of vacuum pump enabling time, i.e. 10min, midway
Take the process of product are as follows: vacuum breaker --- door of unpacking --- take product --- closing chamber door --- vacuumizing ---, to close pump fidelity empty,
It is completed in 2min.
Embodiment 2
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -75Kpa, relative humidity 32%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤40s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Embodiment 3
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -85Kpa, relative humidity 30%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤50s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Embodiment 4
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -50Kpa, relative humidity 30%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤20s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Embodiment 5
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -99Kpa, relative humidity 30%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤60s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Embodiment 6
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -65Kpa, relative humidity 35%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤30s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Embodiment 7
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -99Kpa, relative humidity 25%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤60s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Comparative example 1
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, the product after polymerization, whole be all put into are warming up to 85 in advance
Storage is kept the temperature in~105 DEG C of baking oven, first taking out a product (about 1100) from secondary by the gross carries out the vertical sealing of group, remaining
Product continues to put heat preservation in an oven and stores wait organize vertical sealing, then successively takes out a product every time and carries out the vertical sealing of group, directly
To the vertical sealing of group is fully completed, baking oven, whole time-consuming about 6H are closed.Midway takes the process of product are as follows: door of unpacking --- take production
Product --- chamber door is closed, is completed in 1min, during which oven heater is not related to, and continues working.
The vertical sealing speed of group is calculated according to 60/min, and 1 batch products are fully completed the vertical sealing of group and at least need 22000/
60=366.67min, i.e., about 6h or more.
Comparative example 2
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -45Kpa, relative humidity 38%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤20s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Comparative example 3
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -110Kpa, relative humidity 30%RH, is taken from sealing vacuum storage equipment
Capacitor enters the time≤30s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
Comparative example 4
A kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, the vertical sealing of group,
Burn-in test and packaging process, solid capacitor store in being directly placed into sealing vacuum storage equipment after polymerization wait organize vertical envelope
Mouthful, the vacuum degree of sealing vacuum storage equipment is -55Kpa, relative humidity 38%RH, electricity of taking from sealing vacuum storage equipment
Container enters the time≤35s, fidelity sky storage time 6h of the vertical sealing process of group.
Concrete operations are same as Example 1.
As a result it detects
Table 1 is the energy consumption table of embodiment and comparative example
| Serial number | Power | Total time | Single part of deadline | Use the time | Energy consumption | Day power consumption |
| Embodiment 1 | 4.5KW | 6H | 30s | 10min | 0.75 degree | 3 degree |
| Embodiment 2 | 4.5KW | 6H | 40s | 13.3min | 1.00 degree | 4 degree |
| Embodiment 3 | 4.5KW | 6H | 50s | 16.7min | 1.25 degree | 5 degree |
| Embodiment 4 | 4.5KW | 6H | 20s | 6.7min | 0.5 degree | 2 degree |
| Embodiment 5 | 4.5KW | 6H | 60s | 20min | 1.50 degree | 6 degree |
| Embodiment 6 | 4.5KW | 6H | 30s | 10min | 0.75 degree | 3 degree |
| Embodiment 7 | 4.5KW | 6H | 60s | 20min | 1.50 degree | 6 degree |
| Comparative example 1 | 6.0KW | 6H | / | 6H | 27 degree | 108 degree |
| Comparative example 2 | 4.5KW | 6H | 20s | 6.7min | 0.5 degree | 2 degree |
| Comparative example 3 | 4.5KW | 6H | 60s | 20min | 1.50 degree | 6 degree |
| Comparative example 4 | 4.5KW | 6H | 25s | 8.3min | 0.62 degree | 2.5 degree |
Different for vacuum degree needed for embodiment and comparative example, then its corresponding vacuum pump is different using the time,
Under the vacuum degree condition needed for producing, is tested with stopwatch and complete vacuum pump time table as above used in a product, it is complete that you can get it
The time is used at 22000 required vacuum pumps of a batch products, produces within one day required electric energy consumption to calculate.
The performance for the capacitor that embodiment and comparative example is prepared is detected, detection method are as follows: respectively take 50 productions
Product carry out 105 DEG C of 2000H high-temperature load life tests, and experimental result is as shown in table 2.
Table 2 is the performance for the product that embodiment and comparative example is prepared
Upper table is after completing production under the conditions of each embodiment and comparative example, after carrying out 105 DEG C of 2000H life tests
Parameters variation situation.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (8)
1. a kind of manufacturing method of solid-state aluminum electrolytic capacitor, including cut, follow closely volume, chemical conversion, impregnation, polymerization, organize vertical sealing, is old
Change test and packaging process, which is characterized in that the solid capacitor is being directly placed into sealing vacuum storage equipment after polymerization
In store wait organize vertical sealing, the vacuum degree of sealing vacuum storage equipment is -50 ~ -99Kpa, relative humidity≤35%RH, from sealing
Capacitor of taking in vacuum storage equipment enters time≤60s of the vertical sealing process of group, fidelity sky storage time≤48h.
2. manufacturing method as described in claim 1, which is characterized in that the capacitor seals vacuum storage equipment during taking
Vacuum degree kept by vacuum switch discontinuity, from normal pressure to the time of standard pressure≤30s.
3. manufacturing method as claimed in claim 1 or 2, which is characterized in that it is described sealing vacuum storage equipment vacuum degree be-
65Kpa~-99Kpa。
4. manufacturing method as claimed in claim 3, which is characterized in that the vacuum degree of the sealing vacuum storage equipment is -65Kpa
~-85Kpa。
5. manufacturing method as claimed in claim 1 or 2, which is characterized in that it is described sealing vacuum storage equipment relative humidity be
25%RH~34%RH。
6. manufacturing method as claimed in claim 5, which is characterized in that the relative humidity of the sealing vacuum storage equipment is 30%
RH~34%RH。
7. manufacturing method as claimed in claim 1 or 2, which is characterized in that it is described sealing vacuum storage equipment vacuum degree be-
The relative humidity of 65Kpa ~ -99Kpa, the sealing vacuum storage equipment are 25%RH ~ 34%RH.
8. manufacturing method as claimed in claim 7, which is characterized in that the vacuum degree of the sealing vacuum storage equipment is -65Kpa
The relative humidity of ~ -85Kpa, the sealing vacuum storage equipment are 30%RH ~ 34%RH.
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| CN201811315177.5A CN109545565B (en) | 2018-11-06 | 2018-11-06 | Manufacturing method of solid-state aluminum electrolytic capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643898A (en) * | 2021-10-15 | 2021-11-12 | 成都宏明电子股份有限公司 | Vacuum heat treatment method for thin film capacitor core |
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