CN109950676A - A kind of surface spray coating process of 5G communication ceramic filter - Google Patents
A kind of surface spray coating process of 5G communication ceramic filter Download PDFInfo
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- CN109950676A CN109950676A CN201910250596.3A CN201910250596A CN109950676A CN 109950676 A CN109950676 A CN 109950676A CN 201910250596 A CN201910250596 A CN 201910250596A CN 109950676 A CN109950676 A CN 109950676A
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Abstract
Disclosed by the invention is a kind of surface spray coating process of 5G communication ceramic filter, comprising the following specific steps ceramic monoliths cleaning pretreatment-ceramic monoliths arrangement laying-vacuum oriented stream atomizing spraying-skin drying processing and product are collected.The present invention overcomes be coated with technical limitation present in ceramic filter monolithic coating using screen printing technique in the prior art, it is poor to solve uniform coating thickness degree of the existing technology, the low disadvantage of precision, the technical issues of prior art is difficult to printed coating to inner side wall of through hole is overcome again, to improve the properties of product of communication ceramic filter.
Description
Technical field
The present invention relates to the field of manufacturing of 5G communication filter, more specifically a kind of 5G communicates ceramic filtering
The surface spray coating process of wave device.
Background technique
3G/4G period, base station are made of baseband processing unit BBU, RF processing unit RRU and antenna-feeder system three parts.
Significant changes occur in 5G epoch, the big component units in base station three: (1) BBU is split as two level framework of CU-DU;(2) RRU and big rule
Mode array antenna merges to form active antenna AAU;(3) original BBU part physical layer function is placed in AAU.Wherein penetrated as key
The filter of one of frequency device is particularly important in the technology upgrading in 5G epoch.
3G/4G epoch, metal coaxial cavity filter are the key that market mainstream selections: base station filters are radio frequency systems
Component part, main operational principle are that specific frequency content passes through in making to send and receive signal, and it is other greatly to decay
Frequency content.The filter of tradition application is usually to be realized by metal coaxial cavity, is the electromagnetic wave by different frequency same
It is vibrated in axocoel fluid filter, the electromagnetic wave for reaching filter resonance frequency is retained, and the electromagnetic wave of remaining frequency is then shaking
The effect dissipated in swinging.
With the development of mobile communications network, radio band becomes very intensive, causes metal cavity filter real
The existing high system compatible problem inhibited, and can solve the above problem using ceramic medium material to make cavity body filter.Phase
Than conventional metals chamber resonator, ceramic dielectric resonance filter has high inhibition, the spy that insertion loss is small, temperature drift characteristic is good
Point, and power capacity and passive inter-modulation performance are all greatly improved.Ceramic dielectric resonance filter represents high-end
The developing direction of radio-frequency devices possesses more extensive application space by its excellent performance in mobile communication field.
In order to improve the performance of ceramic filter, by the surface printing silver slurry layer in ceramic filter, both at home and abroad for
Print silver slurry layer processing it is complex and traditional, for different size ceramic filter need to design it is matched
Printing plate causes each product up-gradation to require (to prepare the new print of a batch again to the corresponding upgrading of production line progress
Brush version), these will affect the update speed of product, while will increase production cost.In addition, existing mode of printing more passes
System, the silver slurry layer of the same product surface is in uneven thickness, and the silver slurry layer difference in thickness between each product is larger, ceramic monoliths
On if there is counterbore or clear opening, not only the silver paste coating on its inner sidewall is not easy to brush, but also silver paste coating layer thickness precision
It is difficult to ensure that causing the performance difference of product larger, it is easy to generate adverse effect to the overall performance of base station.
Summary of the invention
Disclosed by the invention is a kind of surface spray coating process of 5G communication ceramic filter, and main purpose is to overcome existing
There are technology above shortcomings and disadvantage.
A kind of completely new surface spray coating process is provided, it not only may be implemented the outer surface of ceramic monoliths and thereon in through-hole
The accurate spraying on surface, and can guarantee the thickness difference precision of spray-on coating, um rank is reached, can be better maintained
The requirement of 5G mechanics of communication.
The technical solution adopted by the invention is as follows:
A kind of surface spray coating process of 5G communication ceramic filter, comprising the following specific steps
Step 1: ceramic monoliths cleaning pretreatment carries out ultrasonic cleaning to surface drilling and fine grinding treated ceramic monoliths,
And drying operation is carried out, the pretreatment for completing spraying prepares；
Step 2: ceramic monoliths arrangement is laid, and will be cleaned pretreated ceramic monoliths and be carried out spacing in a manner of spaced
It places, prepares spray treatment in next step；
Step 3: vacuum oriented stream atomizing spraying, spray gun robot first passes through device for visual identification and knows automatically under vacuum conditions
The position of good ceramic monoliths of arranged distribution, is then again atomized the surface of the ceramic monoliths not and in positioning step two
Spraying, meanwhile, the atomizing spraying air-flow of ejection carries out air-flow directed flow under vacuum conditions, forms orientation fluid, the orientation
Fluid is directed through the through-hole in ceramic monoliths, and completes the spray treatment to through-hole inner surface；
Step 4: the ceramic monoliths for having completed spray treatment are carried out surface covering using drying unit by skin drying processing
Drying and processing；
Step 5: product is collected, and drying and ceramic monoliths after cooling have been completed in unified collection processing, is completed at spraying
Reason.
Further, the ceramic monoliths are rectangular structure.
Further, the atomizing spraying operation of the step 3 needs ceramic monoliths six surfaces good to arranged distribution
Spraying carry out in three times, every subsurface spray when be that atomization spray is carried out to the two neighboring surface in the ceramic monoliths simultaneously
It applies, recycles tipping arrangement to carry out unified overturning to ceramic monoliths after the completion of spraying, until spray treatment is all completed on six surfaces.
Further, the atomizing spraying is windstream atomizing spraying, it may be assumed that the atomizing spraying air-flow that spray gun sprays is not only
It is sprayed at the outer surface of ceramic monoliths, but also by the through-hole in ceramic monoliths in a manner of directed flow, in through-hole
Surface carries out spray attachment coating treatment simultaneously, completes the coating spraying of ceramic monoliths through-hole inner surface.
Further, the coating of the atomizing spraying is metal silver coating, and the thickness error precision of the metal silver coating
It is um grades.
Further, the drying unit of the step 4 is to dry silver stove.
Further, the through-hole of the ceramic monoliths is straight line pylone.
Further, the through-hole is any one in circular through hole or long strip through hole.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantages that
The present invention not only can use the silver paste spray coating liquor of atomization to ceramic monoliths by atomizing spraying and orientation gas flowing
Outer surface carries out equably spray treatment, is allowed to obtain the metal silver coating of one layer of uniform thickness, and can be by orienting gas
Body flowing, makes the silver paste spray coating liquor of the atomization by the through-hole in ceramic monoliths, and carries out spray treatment to the inner surface of through-hole,
It is equally allowed to obtain the metal silver coating of one layer of uniform thickness, overcomes and be coated with ceramics using screen printing technique in the prior art
Technical limitation present in monolithic coating, that is, solve that uniform coating thickness degree of the existing technology is poor, and precision is low to be lacked
Point, and the technical issues of prior art is difficult to printed coating to inner side wall of through hole is overcome, to improve communication ceramics filtering
The properties of product of device.
Detailed description of the invention
Fig. 1 is the arrangement spray structure schematic diagram of ceramic monoliths in the present invention.
Specific embodiment
Explanation is with reference to the accompanying drawings to further explain a specific embodiment of the invention.
As shown in Figure 1, a kind of surface spray coating process of 5G communication ceramic filter, comprising the following specific steps
Step 1: it is clear to carry out ultrasonic wave to surface drilling and fine grinding treated ceramic monoliths 1 for the cleaning pretreatment of ceramic monoliths 1
It washes, and carries out drying operation, the pretreatment for completing spraying prepares；
Step 2: the arrangement of ceramic monoliths 1 is laid, and will be cleaned between pretreated ceramic monoliths 1 carry out in a manner of spaced
Away from placement, prepare spray treatment in next step；
Step 3: vacuum oriented stream atomizing spraying, spray gun robot first passes through device for visual identification and knows automatically under vacuum conditions
The position of good ceramic monoliths 1 of arranged distribution not and in positioning step two, then again to the surface progress mist of the ceramic monoliths 1
Change spraying, meanwhile, the atomizing spraying air-flow of ejection carries out air-flow directed flow under vacuum conditions, forms orientation fluid, this is fixed
It is directed through the through-hole 11 in ceramic monoliths to fluid, and completes the spray treatment to 11 inner surface of through-hole；
Step 4: the ceramic monoliths 1 for having completed spray treatment are carried out surface covering using drying unit by skin drying processing
Drying and processing；
Step 5: product is collected, and drying and ceramic monoliths 1 after cooling have been completed in unified collection processing, is completed at spraying
Reason.
Further, the ceramic monoliths 1 are rectangular structure.
Further, the atomizing spraying operation of the step 3 needs ceramic monoliths 1 six tables good to arranged distribution
The spraying in face carries out in three times, and every subsurface is to be atomized simultaneously to the two neighboring surface in the ceramic monoliths 1 when spraying
Spraying recycles tipping arrangement to carry out unified overturning to ceramic monoliths 1, until six surfaces are all completed at spraying after the completion of spraying
Reason.
Further, the atomizing spraying is windstream atomizing spraying, it may be assumed that the atomizing spraying air-flow that spray gun sprays is not only
It is sprayed at the outer surface of ceramic monoliths, but also by the through-hole 11 in ceramic monoliths 1 in a manner of directed flow, to through-hole 11
Inner surface carry out spray attachment coating treatment simultaneously, complete the coating spraying of 11 inner surface of through-hole of ceramic monoliths 1.
Further, the coating of the atomizing spraying is metal silver coating, and the thickness error precision of the metal silver coating
It is um grades.
Further, the drying unit of the step 4 is to dry silver stove.
Further, the through-hole 11 of the ceramic monoliths 1 is straight line pylone.
Further, the through-hole 11 is any one in circular through hole or long strip through hole.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantages that
The present invention not only can use the silver paste spray coating liquor of atomization to ceramic monoliths by atomizing spraying and orientation gas flowing
Outer surface carries out equably spray treatment, is allowed to obtain the metal silver coating of one layer of uniform thickness, and can be by orienting gas
Body flowing, makes the silver paste spray coating liquor of the atomization by the through-hole in ceramic monoliths, and carries out spray treatment to the inner surface of through-hole,
It is equally allowed to obtain the metal silver coating of one layer of uniform thickness, overcomes and be coated with ceramics using screen printing technique in the prior art
Technical limitation present in monolithic coating, that is, solve that uniform coating thickness degree of the existing technology is poor, and precision is low to be lacked
Point, and the technical issues of prior art is difficult to printed coating to inner side wall of through hole is overcome, to improve communication ceramics filtering
The properties of product of device.
The above is only a specific embodiment of the present invention, but design concept of the invention is not limited merely to this, all benefits
The present invention is improved with carrying out unsubstantiality with this design, should be belonged to behavior that violates the scope of protection of the present invention.
Claims (8)
1. a kind of surface spray coating process of 5G communication ceramic filter, it is characterised in that: comprising the following specific steps
Step 1: ceramic monoliths cleaning pretreatment carries out ultrasonic cleaning to surface drilling and fine grinding treated ceramic monoliths,
And drying operation is carried out, the pretreatment for completing spraying prepares；
Step 2: ceramic monoliths arrangement is laid, and will be cleaned pretreated ceramic monoliths and be carried out spacing in a manner of spaced
It places, prepares spray treatment in next step；
Step 3: vacuum oriented stream atomizing spraying, spray gun robot first passes through device for visual identification and knows automatically under vacuum conditions
The position of good ceramic monoliths of arranged distribution, is then again atomized the surface of the ceramic monoliths not and in positioning step two
Spraying, meanwhile, the atomizing spraying air-flow of ejection carries out air-flow directed flow under vacuum conditions, forms orientation fluid, the orientation
Fluid is directed through the through-hole in ceramic monoliths, and completes the spray treatment to through-hole inner surface；
Step 4: the ceramic monoliths for having completed spray treatment are carried out surface covering using drying unit by skin drying processing
Drying and processing；
Step 5: product is collected, and drying and ceramic monoliths after cooling have been completed in unified collection processing, is completed at spraying
Reason.
2. a kind of surface spray coating process of 5G communication ceramic filter according to claim 1, it is characterised in that: the pottery
Porcelain monolithic is rectangular structure.
3. a kind of surface spray coating process of 5G communication ceramic filter according to claim 2, it is characterised in that: the step
Rapid three atomizing spraying operation needs the spraying on ceramic monoliths six surface good to arranged distribution to carry out in three times, each table
Face is to carry out atomizing spraying to the two neighboring surface in the ceramic monoliths simultaneously when spraying, and recycles overturning to set after the completion of spraying
It is standby that unified overturning is carried out to ceramic monoliths, until spray treatment is all completed on six surfaces.
4. a kind of surface spray coating process of 5G communication ceramic filter according to claim 2, it is characterised in that: the mist
Changing spraying is windstream atomizing spraying, it may be assumed that the atomizing spraying air-flow that spray gun sprays not only is sprayed at the outer surface of ceramic monoliths,
But also the inner surface of through-hole is carried out at spray attachment coating simultaneously by the through-hole in ceramic monoliths in a manner of directed flow
Reason completes the coating spraying of ceramic monoliths through-hole inner surface.
5. a kind of surface spray coating process of 5G communication ceramic filter according to claim 1, it is characterised in that: the mist
The coating for changing spraying is metal silver coating, and the thickness error precision of the metal silver coating is um grades.
6. a kind of surface spray coating process of 5G communication ceramic filter according to claim 5, it is characterised in that: the step
Rapid four drying unit is to dry silver stove.
7. a kind of surface spray coating process of 5G communication ceramic filter according to claim 1, it is characterised in that: the pottery
The through-hole of porcelain monolithic is straight line pylone.
8. a kind of surface spray coating process of 5G communication ceramic filter according to claim 7, it is characterised in that: described logical
Hole is any one in circular through hole or long strip through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250596.3A CN109950676A (en) | 2019-03-29 | 2019-03-29 | A kind of surface spray coating process of 5G communication ceramic filter |
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| CN201910250596.3A CN109950676A (en) | 2019-03-29 | 2019-03-29 | A kind of surface spray coating process of 5G communication ceramic filter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429368A (en) * | 2019-08-29 | 2019-11-08 | 重庆思睿创瓷电科技有限公司 | Silver paste printing equipment for filter |
| CN111525225A (en) * | 2020-05-26 | 2020-08-11 | 苏州捷频电子科技有限公司 | Filter device and conductive layer spraying method thereof |
| CN112768865A (en) * | 2020-12-28 | 2021-05-07 | 重庆思睿创瓷电科技有限公司 | Silver paste spraying process for surface of filter |
| CN113996476A (en) * | 2021-10-26 | 2022-02-01 | 广东奥迪威传感科技股份有限公司 | Drip irrigation spraying production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110429368A (en) * | 2019-08-29 | 2019-11-08 | 重庆思睿创瓷电科技有限公司 | Silver paste printing equipment for filter |
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| CN112768865A (en) * | 2020-12-28 | 2021-05-07 | 重庆思睿创瓷电科技有限公司 | Silver paste spraying process for surface of filter |
| CN113996476A (en) * | 2021-10-26 | 2022-02-01 | 广东奥迪威传感科技股份有限公司 | Drip irrigation spraying production line |
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Effective date of abandoning: 20211231 |