CN104338647A - Coating apparatus of uniform-coating easy-precipitation coating - Google Patents
Coating apparatus of uniform-coating easy-precipitation coating Download PDFInfo
- Publication number
- CN104338647A CN104338647A CN201310326082.4A CN201310326082A CN104338647A CN 104338647 A CN104338647 A CN 104338647A CN 201310326082 A CN201310326082 A CN 201310326082A CN 104338647 A CN104338647 A CN 104338647A
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- Prior art keywords
- coating
- coating roller
- described lower
- masking liquid
- application
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Classifications
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- 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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
-
- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1026—Valves
-
- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
Abstract
The invention relates to a coating apparatus of a uniform-coating easy-precipitation coating. The apparatus includes an upper surface coating system, a lower surface coating and a coating liquid circulation system; and the lower surface coating system includes a lower coating roller, a lower coating roller motor driving the lower coating roller to move up and down, an effusion coating roller close to the lower coating roller in the horizontal direction of the lower coating roller, and a lower surface porous jet tube positioned above the effusion coating roller. The apparatus can realize the uniform coating of the easy-precipitation coating, and thoroughly solves the problems of poor plate surface quality and circulating pipeline obstruction and the like caused by the precipitation of a second effusion disc in the use process.
Description
Technical field
The present invention relates to metallurgical machinery/cold rolled coated coating technology, particularly relate to the applying device of the easy precipitated coating of a kind of even application.
Background technology
Accompanying drawing 1 is the schematic diagram of current general a kind of coating application system, comprising: upper surface application system 100, lower surface application system 200 and painting fluid circulation 300; Wherein, upper surface application system 100 comprises: go up coating roller 101, order about the upper coating roller motor 103 that described upper coating roller 101 moves up and down and the upper surface spraying liquid feed device 102 being positioned at described upper coating roller 101 horizontal direction; Its lower surface application system 200 comprises: lower coating roller 201, order about the lower coating roller motor 202 that described lower coating roller 201 moves up and down; It is coated with fluid circulation 300 and comprises: be positioned at masking liquid second drip tray 500 below lower coating roller 201, be positioned at masking liquid first drip tray 301 below masking liquid second drip tray 500 and circulating slot 302.In use, masking liquid liquid is directly sprayed on the upper surface (upper surface infiltrates among masking liquid) of band steel 400 by top masking liquid liquid feed device 102, the masking liquid that top masking liquid liquid feed device 102 is sprayed on band steel 400 upper surface unnecessary flows in masking liquid second drip tray 500, lower coating roller 201 part is immersed in bottom masking liquid second drip tray 500, masking liquid liquid is taken up by the rotation of lower coating roller 201 lower surface being coated onto band steel 400, unnecessary masking liquid overflows in masking liquid first drip tray 301 in bottom masking liquid second drip tray 500, get back in circulating slot 302 by the pump housing conveying of masking liquid first drip tray 301, masking liquid is supplied to top masking liquid liquid feed device by the pump housing by circulating slot 302 again.
Although this kind of coating application system generally uses at cold rolling coating procedure, when masking liquid belongs to easy precipitation masking liquid, in its use procedure, Problems existing then obviously comes out, and main manifestations is:
1, commute precipitation masking liquid, the lower coating roller 201 of simple dependence gets liquid poor effect from masking liquid second drip tray 500, often occurs the situation that lower surface coating is uneven.
2, because masking liquid second drip tray 500 carries out masking liquid circulation by overflow completely, compared with masking liquid first drip tray 301 and circulating slot 302, easily precipitate in the coating procedure easily precipitating masking liquid, corresponding being deposited in masking liquid second drip tray 500 can raise bottom level in masking liquid second drip tray 500 after formation, affect actual effectively liquid level in masking liquid second drip tray 500, and then the lower coating roller 201 of impact gets liquid and coating result.
3, the sediment in masking liquid second drip tray 500 enters coating cycle system 300, can cause the line clogging such as return duct, feed pipe, affect coat system and normally use.
4, the sediment in masking liquid second drip tray 500 is taken on belt steel surface by lower coating roller 201, can cause respective coatings mass defect.
Summary of the invention
For above shortcomings in prior art, one of technical problem to be solved by this invention is to provide the applying device of the easy precipitated coating of a kind of even application, by this device, can realize the even application of easy precipitated coatings, and in thorough solution use procedure, masking liquid second drip tray precipitates the problems such as the board surface quality caused is not good, circulating line blocking.
The present invention seeks to be achieved through the following technical solutions:
An applying device for the easy precipitated coating of even application, it comprises: upper surface application system 100, lower surface application system 200 and painting fluid circulation 300;
Described upper surface application system 100 comprises: go up coating roller 101, order about the upper coating roller motor 103 that described upper coating roller 101 moves up and down and the upper surface spraying liquid feed device 102 being positioned at described upper coating roller 101 horizontal direction;
Described painting fluid circulation 300 comprises: be positioned at masking liquid first drip tray 301, the circulating slot 302 below described lower coating roller 201;
Described lower surface application system 200 comprises: lower coating roller 201, order about lower coating roller motor 202 that described lower coating roller 201 moves up and down, in the horizontal direction near the hydrops application roll 203 of described lower coating roller 201, be positioned at the lower surface porous playpipe 204 above described hydrops application roll 203;
Described upper surface spraying liquid feed device 102 is connected with described circulating slot 302 by upper surface application system pipeline 306;
Described lower surface porous playpipe 204 is connected with described circulating slot 302 by lower surface application system pipeline 307;
Described masking liquid first drip tray 301 is connected with described circulating slot 302 by hydrops reflux line 308;
By masking liquid solution feed pump 304, masking liquid is supplied to described upper surface spraying liquid feed device 102 and described lower surface porous playpipe 204 from described circulating slot 302.
Preferably, the axis height of described hydrops application roll 203 is identical with the axis height of described lower coating roller 201.The effect of this optimal design is, make lower surface porous playpipe 204 spray masking liquid and build up between lower coating roller 201 and hydrops application roll 203 and then the even attachment of coating roller 201 roll surface masking liquid under realizing, unnecessary masking liquid is then from hydrops application roll 203 end overflow.
The height of described lower surface porous sparge pipe 204, more than described lower coating roller 201 axis, is greater than 1/4th of the diameter of described lower coating roller 201 with the difference of the height on the top (bus topmost) of described lower coating roller 201.The spray regime of described lower surface porous playpipe 204 is horizontal-jet.Its reason is in lower coating roller 201 rotation process, and when the lower part of body of roll axis, the uneven distribution trend of masking liquid is also not obvious, therefore the lower surface porous sparge pipe 204 of horizontal-jet need be arranged on lower coating roller 201 axis; Because the masking liquid homogenising be injected on lower coating roller 201 needs the regular hour, therefore the lower surface porous sparge pipe 204 of horizontal-jet is greater than 1/4th of the diameter of described lower coating roller, to reserve the Homogenization Process that the regular hour realizes coating with the difference of the height on the top (bus topmost) of described lower coating roller 201.Meanwhile, if masking liquid eject position is excessively near with the contact position of band steel 400 apart from lower coating roller 201, the masking liquid of injection also can cause masking liquid process unstable, affects final coating quality.
The roller footpath of described hydrops application roll 203 is 1/1 to four/6th of the roller footpath of lower coating roller 201.Reason is that the roller footpath of hydrops application roll 203 is too small, does not reach the effect that masking liquid gathers, excessive, is unfavorable for the setting of lower surface porous sparge pipe 204.
Described lower surface porous playpipe 204 has the equally distributed mouth spray of multiple transverse direction, lower surface porous playpipe 204 has jet pipe snap ring 205, it can adjust mouth spray, and coating is sprayed onto between bottom hydrops applicator roll 203 and lower coating roller 201 by mouth spray equably.The mode of the adjustment lower surface porous playpipe 204 of jet pipe snap ring 205 is: first unclamp jet pipe snap ring 205, and then rotate lower surface porous playpipe 204 and adjust mouth spray angle, adjustment terminates rear fastening jet pipe snap ring 205.
Spacing between mouth spray on described lower surface porous sparge pipe 204 is 1/1 to eight/15th of strip width.Overstocked mouth spray arrange to cause between adjacent mouth spray spray masking liquid effect and mutually interfere, the mouth spray excessively dredged arranges and sprayed masking liquid can be caused cannot to cover lower coating roller 201 completely.Lower surface porous sparge pipe 204 spray masking liquid angle of coverage between 45 ° to 75 °, too small spray angle can cause masking liquid cannot coating roller 201 under complete covering, and excessive angle can cause in spray regime and occur breach, is unfavorable for the formation of uniform coating.
On described lower surface porous sparge pipe 204, in the mouth spray unit interval, the flow of ejection masking liquid is 1/1 to two/3rd of upper surface spraying liquid feed device 102.On lower surface porous sparge pipe 204, the flow of ejection masking liquid is too small in the mouth spray unit interval is unfavorable for realizing the object of coating uniform and lower coating roller 201 can be caused not enough with the contact position feed flow of hydrops application roll 203; And flow is crossed conference and caused and lower coating roller 201 adhered to to be coated with liquid measure excessive, be unfavorable for the object realizing coating uniform, meanwhile, flow is crossed conference and is caused splash phenomena in course of injection too serious, can cause all kinds of board surface quality problem.
On described lower surface porous sparge pipe 204, the expulsion pressure of mouth spray is set to 1/1 to two/3rd of upper surface spraying liquid feed device 102.
In described circulating slot 302, also there is agitator 303, the masking liquid in circulating slot can be made not deposit.
Horizontal range between lower surface porous sparge pipe 204 and lower coating roller 201 surface is preferably 5 ~ 25cm.
Described upper surface spraying liquid feed device 102 primarily of feed pipe, connect liquid bath, liquid outlet composition, by liquid outlet by masking liquid from the upper surface connecing liquid bath and be sprayed into coil of strip.
Described upper surface application system pipeline 306 having a top for hydraulic control valve 305, can control for hydraulic control valve 305 spraying and the stopping spraying that upper surface sprays liquid feed device 102 by opening and closing top.
Present invention omits masking liquid second drip tray of application system in prior art, be provided with following table porous sparge pipe 204 and hydrops application roll 203, the even application of easy precipitated coatings can be realized, and thoroughly solve masking liquid second drip tray in use procedure and precipitate the problems such as the board surface quality caused is not good, circulating line blocking.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of coating application system of the prior art.
Fig. 2 is the schematic diagram of the applying device of the easy precipitated coating of even application of the present invention.
Fig. 3 is the schematic diagram of the upper surface application system of the applying device of the easy precipitated coating of even application of the present invention.
Fig. 4 is the schematic diagram of the lower surface application system of the applying device of the easy precipitated coating of even application of the present invention.
Fig. 5 is the partial enlarged drawing of part A in Fig. 4.
Fig. 6 is the schematic diagram of masking liquid cyclic control system of the present invention.
Description of reference numerals: 100, upper surface application system; 101, upper coating roller; 102, upper surface spraying liquid feed device; 103, upper coating roller motor; 200, lower surface application system; 201, lower coating roller; 202, lower coating roller motor; 203, hydrops application roll; 204, lower surface porous playpipe; 205, jet pipe snap ring; 300, fluid circulation is coated with; 301, masking liquid first drip tray; 302, circulating slot; 303, agitator; 304, masking liquid solution feed pump; 305, top is for hydraulic control valve; 306, upper surface application system pipeline; 307, lower surface application system pipeline; 308, hydrops reflux line; 400, be with steel, the direction of arrow of 400 represents the trend of band steel; 500, masking liquid second drip tray.
Detailed description of the invention
Below in conjunction with embodiment and Figure of description, the invention will be further described.
Embodiment
As Figure 2-Figure 5, the applying device of the easy precipitated coating of a kind of even application of the present embodiment, it comprises: upper surface application system 100, lower surface application system 200 and painting fluid circulation 300;
Upper surface application system 100 comprises: go up coating roller 101, order about the upper coating roller motor 103 that coating roller 101 moves up and down and the upper surface spraying liquid feed device 102(Fig. 3 being positioned at coating roller 101 horizontal direction);
Be coated with fluid circulation 300 to comprise: be positioned at masking liquid first drip tray 301 below lower coating roller 201, circulating slot 302(Fig. 6);
Lower surface application system 200 comprises: lower coating roller 201, order about lower coating roller motor 202 that lower coating roller 201 moves up and down, in the horizontal direction near the hydrops application roll 203 of lower coating roller 201, be positioned at lower surface porous playpipe 204(Fig. 4 and Fig. 5 above hydrops application roll 203);
Upper surface spraying liquid feed device 102 is connected with circulating slot 302 by upper surface application system pipeline 306;
Lower surface porous playpipe 204 is connected with circulating slot 302 by lower surface application system pipeline 307;
Masking liquid first drip tray 301 is connected with circulating slot 302 by hydrops reflux line 308;
By a masking liquid solution feed pump 304, masking liquid is supplied to upper surface spraying liquid feed device 102 and lower surface porous playpipe 204 from circulating slot 302.
This applying device eliminates masking liquid second drip tray 500 of application system in prior art, be provided with hydrops application roll 203 and following table porous sparge pipe 204, hydrops application roll 203 is in the horizontal direction near lower coating roller 201, make lower surface porous playpipe 204 spray masking liquid and build up between lower coating roller 201 and hydrops application roll 203 and then the even attachment of coating roller 201 roll surface masking liquid under realizing, unnecessary masking liquid is from hydrops application roll 203 end overflow, the even application of easy precipitated coatings can be realized, and thoroughly solving masking liquid second drip tray in use procedure, to precipitate the board surface quality caused not good, the problems such as circulating line blocking.
The roller footpath of hydrops application roll 203 is 1/6th of lower coating roller 201 roller footpath.
The roller footpath of hydrops application roll 203 is too small, does not reach the effect that masking liquid gathers, excessive, is unfavorable for the setting of lower surface porous sparge pipe 204.
Lower surface porous sparge pipe 204 need be arranged on lower coating roller 201 axis, and the difference of the height on the top (bus topmost) of lower surface porous sparge pipe 204 axis height and described lower coating roller 201 is 2/5ths.
In lower coating roller 201 rotation process, the trend of the uneven distribution of the part masking liquid below body of roll axis is also not obvious, therefore lower surface porous sparge pipe 204 need be arranged on lower coating roller 201 axis; On the other hand, because the masking liquid homogenising be injected on lower coating roller 201 needs the regular hour, the difference of the height on the top (bus topmost) of lower surface porous sparge pipe 204 axis height and described lower coating roller 201 is 2/5ths, when that is to say that lower surface porous sparge pipe 204 is arranged on lower coating roller 201 body of roll 3/5ths height, the Homogenization Process that the regular hour realizes coating can be reserved.Meanwhile, if masking liquid eject position is excessively near with the contact position of band steel 400 apart from lower coating roller 201, the masking liquid of injection also can cause masking liquid process unstable, affects final coating quality.
The expulsion pressure of lower surface porous sparge pipe 204 is 0.3mPa, is 1/2nd of upper surface spraying liquid feed device.
Flow set in lower surface porous sparge pipe 204 unit interval is 7m
3/ h is 1/3rd of flow in upper surface spraying liquid feed device 102 unit interval.
On lower surface porous sparge pipe 204, the flow of ejection masking liquid is too small in the mouth spray unit interval is unfavorable for realizing the object of coating uniform and lower coating roller 201 can be caused not enough with the contact position feed flow of hydrops application roll 203; And flow is crossed conference and caused and lower coating roller 201 adhered to to be coated with liquid measure excessive, be unfavorable for the object realizing coating uniform, meanwhile, flow is crossed conference and is caused splash phenomena in course of injection too serious, can cause all kinds of board surface quality problem.
Lower surface porous playpipe 204 has the equally distributed mouth spray of multiple transverse direction, lower surface porous playpipe 204 has jet pipe snap ring 205, it can adjust mouth spray, and coating is sprayed onto between bottom hydrops applicator roll 203 and lower coating roller 201 by mouth spray equably.Spacing between mouth spray on lower surface porous sparge pipe 204 is 1/10th of strip width, and in the present embodiment, strip width is 1000mm, and the spacing between mouth spray is 100mm.
Overstocked mouth spray arrange to cause between adjacent mouth spray spray masking liquid effect and mutually interfere, the mouth spray excessively dredged arranges and sprayed masking liquid can be caused cannot to cover lower coating roller 201 completely.
It is 60 ° that each mouth spray sprays masking liquid angle of coverage.
Too small angle of coverage can cause masking liquid cannot coating roller 201 under complete covering, and excessive angle of coverage can cause in spray regime and occur breach, is unfavorable for the formation of uniform coating.
Horizontal range between lower surface porous sparge pipe 204 and lower coating roller 201 surface is the distance that 8cm(that is to say between mouth spray and spray site).
Upper surface application system pipeline 306 having a top for hydraulic control valve 305, can control for hydraulic control valve 305 spraying and the stopping spraying that upper surface sprays liquid feed device 102 by opening and closing top.
Circulating slot, with agitator 303, can make the masking liquid in circulating slot not deposit.
The method of operating of the applying device of the easy precipitated coating of even application of the present embodiment is as follows:
(1) be with steel 400 to pass through between upper coating roller 101 and lower coating roller 201, upper coating roller 101 drops to channel line position under the effect of upper coating roller motor 103, and lower coating roller 201 rises under the effect of lower coating roller motor 202, rises to holding fix and stops.
(2) masking liquid is delivered to lower surface porous sparge pipe and is filled 204 by lower surface application system pipeline 307, fills equally distributed mouth spray on 204 spray by lower surface porous sparge pipe, is sprayed onto equably by masking liquid between bottom coating hydrops roller 203 and lower coating roller 201.
(3) when weld seam enters first 2 meters of the applying device of the easy precipitated coating of even application, lower coating roller 201 rises under holding fix is by the effect of motor 202, when pressure between upper coating roller 101 and lower coating roller 201 reaches 4KN, top is opened for hydraulic control valve 305, sprays liquid feed device 102 masking liquid is sprayed onto upper coating roller 101 and the contact position being with steel 400 upper surface equably by upper surface.
(4) when upper pressure increase between coating roller 101 and lower coating roller 201 is to 7KN, lower coating roller motor 202 stops, and is the working position of coating roller 101 and lower coating roller 201.Now, upper coating roller 101 and lower coating roller 201 contact with the upper and lower surface of band steel 400 respectively, and the rotary speed of upper coating roller 101 and lower coating roller 201 is all synchronous with band steel 400 speed of service.
(5) the unnecessary masking liquid after being with the upper and lower surface application of steel 400 trickles naturally in masking liquid first drip tray 301 of below, is back in circulating slot 302 by hydrops reflux line 308.Feed flow is carried out to upper surface spraying liquid feed device 102 and lower surface porous sparge pipe 204 respectively by upper surface application system pipeline 306 and lower surface application system pipeline 307 again by masking liquid solution feed pump 304.
The device of the present embodiment can realize the even application of easy precipitated coatings, thoroughly solves masking liquid second drip tray in prior art and precipitates the problems such as the board surface quality caused is not good, circulating line blocking.
Claims (10)
1. an applying device for the easy precipitated coating of even application, it comprises: upper surface application system, lower surface application system and painting fluid circulation;
Described upper surface application system comprises: go up coating roller, order about the upper coating roller motor that described upper coating roller moves up and down and the upper surface spraying liquid feed device being positioned at described upper coating roller horizontal direction;
It is characterized in that:
Described painting fluid circulation comprises: be positioned at masking liquid first drip tray, the circulating slot below described lower coating roller;
Described lower surface application system comprises: lower coating roller, order about lower coating roller motor that described lower coating roller moves up and down, in the horizontal direction near the hydrops application roll of described lower coating roller, be positioned at the lower surface porous playpipe above described hydrops application roll;
Described upper surface spraying liquid feed device is connected with described circulating slot by upper surface application system pipeline;
Described lower surface porous playpipe is connected with described circulating slot by lower surface application system pipeline;
Described masking liquid first drip tray is connected with described circulating slot by hydrops reflux line;
By masking liquid solution feed pump, masking liquid is supplied to described upper surface spraying liquid feed device and described lower surface porous playpipe from described circulating slot.
2. the applying device of the easy precipitated coating of even application as claimed in claim 1, is characterized in that: the axis height of described hydrops application roll is identical with the axis height of described lower coating roller.
3. the applying device of the easy precipitated coating of even application as claimed in claim 1 or 2, it is characterized in that: the height of described lower surface porous sparge pipe, more than the axis of described lower coating roller, is greater than 1/4th of the diameter of described lower coating roller with the difference of the height on the top of described lower coating roller.
4. the applying device of the easy precipitated coating of even application as claimed in claim 1 or 2, is characterized in that: the roller footpath of described hydrops application roll is 1/1 to four/6th of the roller footpath of lower coating roller.
5. the applying device of the easy precipitated coating of the even application according to any one of claim 1-4, is characterized in that: the spray regime of described lower surface porous playpipe is horizontal-jet; Described lower surface porous playpipe has the equally distributed mouth spray of multiple transverse direction.
6. the applying device of the easy precipitated coating of even application as claimed in claim 5, is characterized in that: on described lower surface porous sparge pipe, in the mouth spray unit interval, the flow of ejection masking liquid is 1/1 to two/3rd of upper surface spraying liquid feed device.
7. the applying device of the easy precipitated coating of even application as claimed in claim 5, is characterized in that: on described lower surface porous sparge pipe, the expulsion pressure of mouth spray is 1/1 to two/3rd of upper surface spraying liquid feed device.
8. the applying device of the easy precipitated coating of even application as claimed in claim 1, is characterized in that: be also provided with agitator in described circulating slot.
9. the applying device of the easy precipitated coating of even application as claimed in claim 1, is characterized in that: the horizontal range between described lower surface porous sparge pipe and described lower coating roller surface is 5 ~ 25cm.
10. the applying device of the easy precipitated coating of even application as claimed in claim 1, is characterized in that: described upper surface application system pipeline is provided with top for hydraulic control valve.
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CN201310326082.4A CN104338647B (en) | 2013-07-30 | 2013-07-30 | A kind of applying device of the easy precipitated coating of even application |
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CN201310326082.4A CN104338647B (en) | 2013-07-30 | 2013-07-30 | A kind of applying device of the easy precipitated coating of even application |
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CN104338647B CN104338647B (en) | 2017-07-28 |
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CN112275573A (en) * | 2020-10-10 | 2021-01-29 | 湖州拓高机械有限公司 | Paint recycling device of roller coating machine |
CN113578649A (en) * | 2021-08-12 | 2021-11-02 | 成都中建材光电材料有限公司 | Coating device |
CN114570613A (en) * | 2022-03-07 | 2022-06-03 | 樊玮 | Medical adhesive tape production equipment and production process thereof |
CN114769055A (en) * | 2022-05-09 | 2022-07-22 | 李玉堂 | Device and process for manufacturing printing label paper |
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