CN109382304B - Inner surface moisture-proof coating process for automobile storage battery - Google Patents
Inner surface moisture-proof coating process for automobile storage battery Download PDFInfo
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- CN109382304B CN109382304B CN201811271643.4A CN201811271643A CN109382304B CN 109382304 B CN109382304 B CN 109382304B CN 201811271643 A CN201811271643 A CN 201811271643A CN 109382304 B CN109382304 B CN 109382304B
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- battery case
- brush
- wall
- primer
- battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/083—Deburring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2506/00—Halogenated polymers
- B05D2506/10—Fluorinated polymers
- B05D2506/15—Polytetrafluoroethylene [PTFE]
Abstract
The invention discloses a process for preparing a moisture-proof coating on the inner surface of an automobile storage battery, which comprises the following steps: s1, cleaning: cleaning the battery case, and baking the battery case in an oven at 300-350 ℃ for 30 minutes after cleaning to remove dust and oil stains inside and outside the battery case; s2, sand blasting and deburring: spraying the soft sand onto the inner surface of the battery shell by using a high-pressure spray gun, continuously spraying for 2-10 s, and taking out the battery shell; s3, priming: coating a primer on the inner surface of the battery case by using an inner wall brush and a bottom brush, baking for 20 minutes in an oven at 110-120 ℃ after the primer is completely coated on the inner surface of the battery case, and polishing the redundant primer on the inner surface of the battery case smoothly by using 1000-mesh abrasive paper after the baking; s4, brushing finish: and (3) painting finish paint on the primer on the inner surface of the battery case by using the inner wall brush and the bottom surface brush again, baking the battery case in an oven at 200 ℃ for 30 minutes after the finish paint is completely painted on the inner surface of the battery case, and polishing the redundant finish paint on the inner surface of the battery case by using 1000-mesh abrasive paper after the baking.
Description
Technical Field
The invention relates to the technical field of storage battery production, in particular to a process for coating a moisture-proof layer on the inner surface of an automobile storage battery.
Background
The battery is the indispensable partly of car, and current car battery is installed battery main part in the battery case mostly, and the battery case adopts ordinary plastics or rubber shell more, and the battery case content easily receives the moisture and leads to the ageing even short circuit of battery main part after the live time, so, need carry out dampproofing to the battery internal surface and handle, for this we provide a car battery internal surface dampproofing coating technology and be used for solving above-mentioned problem.
Disclosure of Invention
The invention aims to provide a process for the inner surface moisture-proof coating of an automobile storage battery, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a process for preparing a moisture-proof coating on the inner surface of an automobile storage battery comprises the following steps:
s1, cleaning: cleaning the battery case, and baking the battery case in an oven at 300-350 ℃ for 30 minutes after cleaning to remove dust and oil stains inside and outside the battery case;
s2, sand blasting and deburring: spraying soft sand onto the inner surface of the battery shell by using a high-pressure spray gun, continuously spraying for 2-10 s, and taking out the battery shell to finish the sand-blasting deburring process;
s3, priming: coating a primer on the inner surface of the battery case by using an inner wall brush and a bottom brush, baking the battery case for 20 minutes in an oven at 110-120 ℃ after the primer is completely coated on the inner surface of the battery case, and polishing the redundant primer on the inner surface of the battery case by using 1000-mesh abrasive paper for later use;
s4, brushing finish: and (3) painting finish paint on the primer on the inner surface of the battery case by using the inner wall brush and the bottom surface brush again, baking the battery case in an oven at 200 ℃ for 30 minutes after the finish paint is completely painted on the inner surface of the battery case, and polishing the redundant finish paint on the inner surface of the battery case by using 1000-mesh abrasive paper after the baking.
Preferably, in the step S2, the injection pressure of the high-pressure spray gun is 2kg/cm 2-3 kg/cm2, the soft sand is plastic sand with a particle size of 0.35 mm-0.45 mm, and the high-pressure spray gun swings back and forth at a frequency of 0-50 Hz.
Preferably, the primer in step S3 is a polyurethane moisture-proof primer, and the primer comprises the following raw materials in parts by weight: 93 parts of polyurethane resin, 5 parts of 2-methylimidazole, 2 parts of silane coupling agent and 16 parts of nano silicon dioxide, and uniformly mixing the raw materials in a high-speed mixer to obtain the polyurethane moisture-proof primer.
Preferably, the finish paint in step S4 is a polytetrafluoroethylene moisture-proof finish paint.
Preferably, in step S3 the inner wall brush includes the fixed plate, the first location hook of fixed plate top outer wall integrated into one piece, first location hook inner wall closely laminates the battery case outer wall, it has the spout to open on the fixed plate, the slip joint slide bar slides in the spout, the first brush board of slide bar one end fixed mounting, the first brush hair of fixed mounting on the first brush board, the battery case inner wall is closely laminated to first brush hair, the slide bar other end slides and runs through first location hook top surface.
Preferably, the horizontal distance between the first positioning hook and the first brush plate is greater than the wall thickness of the battery case, and the distance between the first brush plate and the inner wall of the battery case is 2 mm.
Preferably, in step S3, the bottom brush includes a second brush plate, second positioning hooks are integrally formed on two sides of a top surface of the second brush plate, inner walls of the second positioning hooks are closely attached to outer walls of the battery case, second bristles are fixedly mounted on a bottom surface of the second brush plate, and the second bristles are closely attached to the bottom surface of the battery case.
Compared with the prior art, the invention has the beneficial effects that: the inner wall of the battery case is cleaned, sand blasting is carried out, burrs are removed, and then the primer is coated on the inner wall of the battery case, so that the adhesive force between the battery case and the primer is increased, and the durability of the coating is prolonged; the surface paint is coated on the primer, so that the adhesive force of the surface paint is enhanced, the fullness of the surface paint is increased, and the primer and the surface paint are both moisture-proof paint, so that the moisture-proof effect of the battery case is improved; first brush board and battery case inner wall interval mm for first brush hair and battery case inner wall interval keep unchangeable, then apply paint with a brush evenly, and second location hook slides along the battery case outer wall, makes second brush board bottom and battery case bottom surface keep the level, then the second brush hair evenly applies paint with a brush the coating on the battery case bottom surface, and it is convenient to apply paint with a brush, labour saving and time saving, and apply paint with a brush and do not have the dead angle.
Drawings
FIG. 1 is a schematic view of the structure of an inner wall brush according to the present invention.
FIG. 2 is a schematic view of a bottom brush structure according to the present invention.
In the figure: the brush comprises a battery case 1, an inner wall brush 2, a fixing plate 21, a sliding chute 22, a first brush plate 23, first bristles 24, first positioning hooks 25, a sliding rod 26, a bottom surface brush 3, second bristles 31, a second brush plate 32 and second positioning hooks 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1-2, the present invention provides a technical solution: a process for preparing a moisture-proof coating on the inner surface of an automobile storage battery comprises the following steps:
s1, cleaning: cleaning the battery case, and baking the battery case in an oven at 300-350 ℃ for 30 minutes after cleaning to remove dust and oil stains inside and outside the battery case;
s2, sand blasting and deburring: spraying soft sand onto the inner surface of the battery case by using a high-pressure spray gun, continuously spraying for 2-10 s, and taking out the battery case to finish a sand-blasting deburring process, so that the inner surface of the battery case obtains certain cleanliness and roughness, the adhesive force between the battery case and a coating is increased, the durability of a coating film is prolonged, and the leveling and decoration of a coating are facilitated;
s3, priming: coating a primer on the inner surface of the battery case by using an inner wall brush and a bottom brush, baking the battery case for 20 minutes in an oven at 110-120 ℃ after the primer is completely coated on the inner surface of the battery case, and polishing the redundant primer on the inner surface of the battery case by using 1000-mesh abrasive paper for later use; the adhesive force of the subsequent finish paint is improved, the fullness of the finish paint is increased, the alkali resistance is provided, the anticorrosion function is provided, and the like, and meanwhile, the uniform absorption of the finish paint can be ensured, so that the best effect is exerted;
s4, brushing finish: and (3) painting finish paint on the primer on the inner surface of the battery case by using the inner wall brush and the bottom surface brush again, baking the battery case in an oven at 200 ℃ for 30 minutes after the finish paint is completely painted on the inner surface of the battery case, and polishing the redundant finish paint on the inner surface of the battery case by using 1000-mesh abrasive paper after the baking.
In the step S2, the high-pressure spray gun of the high-pressure spray gun has the spray air pressure of 2kg/cm 2-3 kg/cm2, the soft sand is plastic sand with the particle size of 0.35-0.45 mm, the high-pressure spray gun swings back and forth at the frequency of 0-50 Hz, and the plastic soft sand is used for sand spraying, so that the performance of the inner surface of the battery case is changed, and the structure of the battery case cannot be damaged too much.
The primer in the step S3 is a polyurethane moisture-proof primer which comprises the following raw materials in parts by weight: 93 parts of polyurethane resin, 5 parts of 2-methylimidazole, 2 parts of silane coupling agent and 16 parts of nano silicon dioxide, uniformly mixing the raw materials in a high-speed mixer to prepare the polyurethane moisture-proof primer, and grafting the 2-methylimidazole and the nano silicon dioxide onto a polyurethane resin macromolecular chain through the silane coupling agent, so that the primer has a hydrophobic moisture-proof effect and external moisture is prevented from entering the interior of a battery case through the primer.
And step S4, the finish paint is polytetrafluoroethylene moisture-proof finish paint.
Step S3, the inner wall brush 2 includes a fixing plate 21, a first positioning hook 25 is integrally formed on the outer wall of the top of the fixing plate 21, the inner wall of the first positioning hook 25 is tightly attached to the outer wall of the battery case 1, a sliding groove 22 is formed on the fixing plate 21, a sliding rod 26 is slidably clamped in the sliding groove 22, a first brush plate 23 is fixedly installed at one end of the sliding rod 26, first bristles 24 are fixedly installed on the first brush plate 23, the first bristles 24 are tightly attached to the inner wall of the battery case 1, the other end of the sliding rod 26 penetrates through the top surface of the first positioning hook 25 in a sliding manner, the horizontal distance between the first positioning hook 25 and the first brush plate 23 is larger than the wall thickness of the battery case 1, the distance between the first brush plate 23 and the inner wall of the battery case 1 is 2mm, the first positioning hook 25 is tightly attached to the outer wall of the battery case 1, the sliding rod 26 is pulled to enable the first brush plate 23 to drive the first bristles 24 to move, so as to brush the inner wall of the battery case 1, and the distance between the first brush plate 23 and the inner wall of the battery case 1 is 2mm, so that the distance between the first brush hairs 24 and the inner wall of the battery case 1 is kept constant, and the brushing is uniform.
In step S3, the bottom brush 3 includes a second brush plate 32, second positioning hooks 33 are integrally formed on two sides of a top surface of the second brush plate 32, inner walls of the second positioning hooks 33 are tightly attached to outer walls of the battery case 1, second bristles 31 are fixedly mounted on a bottom surface of the second brush plate 32, the second bristles 31 are tightly attached to the bottom surface of the battery case 1, the second positioning hooks 33 on two sides of the second brush plate 32 are tightly attached to outer walls of the battery case 1, so that the second brush plate 32 is fixed in the battery case 1, the second brush plate 32 is pushed, the second positioning hooks 33 slide along the outer walls of the battery case 1, the bottom of the second brush plate 32 is kept horizontal to the bottom surface of the battery case 1, and the second bristles 31 brush a coating on the bottom surface of the battery case 1.
Furthermore, the first brush board 23 and the second brush board 32 can be made into hollow structures, and the hollow inner cavities are filled with paint, so that the paint occupying process in the painting process is saved, and the operation time is saved.
The working principle is as follows: when the invention is used, the battery case is cleaned, the battery case is put into an oven to be baked after being cleaned, dust and oil stains inside and outside the battery case are removed, then sand blasting deburring is carried out on the inner wall of the battery case, the adhesive force of the inner wall of the battery case to coating is improved, the durability of the coating is prolonged, the inner surface of the battery case is coated with primer through the inner wall brush and the bottom surface brush, the inner surface of the battery case is put into the oven to be baked after the primer is completely coated on the inner surface of the battery case, the redundant primer on the inner surface of the battery case is polished smoothly through sand paper after being dried, the primer on the inner surface of the battery case is coated with surface paint through the inner wall brush and the bottom surface brush again, the inner surface of the battery case is put into the oven to be baked after the finish paint is completely coated on the inner surface of the battery case, the redundant finish on the inner surface of the battery case is polished smoothly through the sand paper, and the inner wall brush 2 is tightly adhered to the outer wall of the battery case 1 through the first positioning hook 25, so as to fix the inner wall brush 2 on the battery case 1, the slide bar 26 is pulled to draw the first brush plate 23 to drive the first brush bristles 24 to move, so that the inner wall of the battery case 1 is brushed, the distance between the first brush plate 23 and the inner wall of the battery case 1 is 2mm, the distance between the first brush bristles 24 and the inner wall of the battery case 1 is kept unchanged, the brushing is uniform, the bottom brush 3 is tightly attached to the outer wall of the battery case 1 through the second positioning hooks 33 on the two sides of the second brush plate 32, the second brush plate 32 is fixed in the battery case 1, the second brush plate 32 is pushed, the second positioning hooks 33 slide along the outer wall of the battery case 1, the bottom of the second brush plate 32 and the bottom of the battery case 1 are kept horizontal, the coating is uniformly brushed on the bottom of the battery case 1 by the second brush bristles 31, the brushing is convenient, and time and labor are saved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A process for the inner surface moisture-proof coating of an automobile storage battery is characterized by comprising the following steps:
s1, cleaning: cleaning the battery case, and baking the battery case in an oven at 300-350 ℃ for 30 minutes after cleaning to remove dust and oil stains inside and outside the battery case;
s2, sand blasting and deburring: spraying soft sand onto the inner surface of the battery shell by using a high-pressure spray gun, continuously spraying for 2-10 s, and taking out the battery shell to finish the sand-blasting deburring process;
s3, priming: coating a primer on the inner surface of the battery case by using an inner wall brush and a bottom brush, baking the battery case for 20 minutes in an oven at 110-120 ℃ after the primer is completely coated on the inner surface of the battery case, and polishing the redundant primer on the inner surface of the battery case by using 1000-mesh abrasive paper for later use;
the primer is a polyurethane moisture-proof primer, and comprises the following raw materials in parts by weight: 93 parts of polyurethane resin, 5 parts of 2-methylimidazole, 2 parts of silane coupling agent and 16 parts of nano silicon dioxide, and uniformly mixing the raw materials in a high-speed mixer to prepare the polyurethane moisture-proof primer;
s4, brushing finish: painting finish paint on the primer on the inner surface of the battery case by using the inner wall brush and the bottom brush again, baking the battery case in an oven at 200 ℃ for 30 minutes after the inner surface of the battery case is completely painted with the finish paint, and polishing the redundant finish paint on the inner surface of the battery case by using 1000-mesh abrasive paper after the battery case is dried, wherein the finish paint is polytetrafluoroethylene moisture-proof finish paint;
the inner wall brush (2) comprises a fixing plate (21), a first positioning hook (25) is integrally formed on the outer wall of the top of the fixing plate (21), the inner wall of the first positioning hook (25) is tightly attached to the outer wall of the battery case (1), a sliding groove (22) is formed in the fixing plate (21), a sliding rod (26) is clamped in the sliding groove (22) in a sliding mode, a first brush plate (23) is fixedly installed at one end of the sliding rod (26), first bristles (24) are fixedly installed on the first brush plate (23), the first bristles (24) are tightly attached to the inner wall of the battery case (1), and the other end of the sliding rod (26) penetrates through the top surface of the first positioning hook (25) in a sliding mode;
the bottom surface brush (3) comprises a second brush plate (32), wherein second positioning hooks (33) are integrally formed on two sides of the top surface of the second brush plate (32), the inner wall of each second positioning hook (33) is tightly attached to the outer wall of the battery case (1), second bristles (31) are fixedly installed on the bottom surface of the second brush plate (32), and the second bristles (31) are tightly attached to the bottom surface of the battery case (1).
2. The process for moisture-proof coating of inner surface of automobile storage battery according to claim 1, characterized in that: the injection pressure of the high-pressure spray gun in the step S2 is 2kg/cm2～3kg/cm2The soft sand is plastic sand with the particle size of 0.35 mm-0.45 mm, and the high-pressure spray gun swings back and forth at the frequency of 0-50 Hz.
3. The process for moisture-proof coating of inner surface of automobile storage battery according to claim 1, characterized in that: the horizontal distance between the first positioning hook (25) and the first brush plate (23) is larger than the wall thickness of the battery case (1), and the distance between the first brush plate (23) and the inner wall of the battery case (1) is 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271643.4A CN109382304B (en) | 2018-10-30 | 2018-10-30 | Inner surface moisture-proof coating process for automobile storage battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271643.4A CN109382304B (en) | 2018-10-30 | 2018-10-30 | Inner surface moisture-proof coating process for automobile storage battery |
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| Publication Number | Publication Date |
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| CN109382304A CN109382304A (en) | 2019-02-26 |
| CN109382304B true CN109382304B (en) | 2021-12-10 |
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| CN201811271643.4A Active CN109382304B (en) | 2018-10-30 | 2018-10-30 | Inner surface moisture-proof coating process for automobile storage battery |
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| WO2009014162A1 (en) * | 2007-07-24 | 2009-01-29 | Mitsubishi Gas Chemical Company, Inc. | Polyurethane resin composition |
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| CN109382304A (en) | 2019-02-26 |
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Denomination of invention: A moisture resistant coating process for the inner surface of automotive battery Effective date of registration: 20220929 Granted publication date: 20211210 Pledgee: Huishang Bank Co.,Ltd. Chuzhou Fenghuang road sub branch Pledgor: ANHUI TONGLING TECHNOLOGY NEW ENERGY CO.,LTD. Registration number: Y2022980016995 |