CN104338666A - LED (Light-Emitting Diode) display screen box spraying method - Google Patents
LED (Light-Emitting Diode) display screen box spraying method Download PDFInfo
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- CN104338666A CN104338666A CN201410666589.9A CN201410666589A CN104338666A CN 104338666 A CN104338666 A CN 104338666A CN 201410666589 A CN201410666589 A CN 201410666589A CN 104338666 A CN104338666 A CN 104338666A
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Abstract
The invention discloses an LED (Light-Emitting Diode) display screen box spraying method. The method comprises the following steps: pressing a metal material into a box structure; cleaning the box, spraying an aluminum powder layer, setting a ground welding point, protecting the ground welding point in sequence, spraying sand onto the surface, performing acid washing and phosphorization, performing plastic spraying on the surface, and coating resin. The aluminum powder layer is arranged on the box, and a ground point is arranged on the aluminum powder layer, so that the box can be grounded effectively, a very good electromagnetic shielding effect is achieved, and radiation is avoided. The box treated by adopting the method has high corrosion resistance, and is prevented from getting rusty easily; moreover, the black color of the box does not fade, electronic elements of an LED display screen are effectively protected, and the service life of an LED display screen is prolonged.
Description
Technical field
The invention belongs to electronics applications field, be specifically related to a kind of LED display drive circuit.
Background technology
At present, LED display frame structure is determined by the installation requirement of display screen and display size and ambient color in design, under the prerequisite ensuring enough installation strength, reduces the erection weight of display screen as far as possible.
Usually three kinds of ways are had: black aluminium alloy, aluminium alloy stainless steel outer packed (sub-light, light) and fabrication integration for indoor display screen housing.
Black aluminum alloy outer frame structure is simple, and housing color is close to display screen background color.
The stainless steel outer packed framework of aluminium alloy, adopts wire drawing stainless steel, attractive in appearance, generous.
Fabrication integral structure, its color is Sony's ash, easily by visual reception.Compact in overall structure in addition, there is no gap.Its shortcoming has requirement to the size of display screen.
Be ensure enough installation strength for outdoor display screen, its housing is steel construction, and external decoration is selected according to field condition and customer requirement usually, usually adopts outsourcing aluminium-plastic panel.Its advantage is as follows:
Aluminium-plastic panel color is various, wide in variety, can require to choose according to difference;
Aluminium-plastic panel surface quality is high, and roughness is little;
Aluminium-plastic panel can realize glue-line splicing, and surface can disposed at equal distance lines, conform with aesthetic.
In prior art, LED display frame structure all pursues the features such as light, thin, therefore, is difficult to the requirement taking into account electromagnetic shielding, and most of LED display casing does not all possess the feature of electromagnetic shielding, or the poor effect of electromagnetic shielding.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of LED display casing spraying method, solves LED display casing in prior art and does not possess the problem of electromagnetic shielding or effectiveness difference.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of LED display casing spraying method, comprises the steps:
Step 1, metal material is compression molded into body structure;
Step 2, body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, ground connection solder joint is set on the aluminium powder layer of casing, and protective layer is set on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization;
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
Metal material in described step 1 is cast iron or aluminium.
Metal material in described step 1 is cast iron.
Described pickling adopts the watery hydrochloric acid of 5% ~ 10%, and pickling time is 2 ~ 5 minutes.
Described pickling adopts the watery hydrochloric acid of 5%, and pickling time is 5 minutes.
Described phosphatization adopts PZn-9, and phosphating time is 5 ~ 10 minutes, and phosphatization temperature is 40 ~ 45 DEG C.
Phosphating time is 5 minutes, and phosphatization temperature is 45 DEG C.
Compared with prior art, the present invention has following beneficial effect:
1, add aluminium powder layer, and earth point is set at aluminium powder layer, make this casing can effective ground connection, there is good effectiveness, avoid radiation.
2, adopt the method to carry out the casing resistance to corrosion that processes to strengthen, be not easy to get rusty, and the black of casing is not easy to come off, the available protecting electronic devices and components of LED display, improve the life-span of LED display.
Detailed description of the invention
Below structure of the present invention and the course of work are described further.
A kind of LED display casing spraying method, comprises the steps:
Step 1, metal material is compression molded into body structure;
Step 2, body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, ground connection solder joint is set on the aluminium powder layer of casing, and protective layer is set on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization;
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
Metal material in described step 1 is cast iron or aluminium.
Metal material in described step 1 is cast iron.
Described pickling adopts the watery hydrochloric acid of 5% ~ 10%, and pickling time is 2 ~ 5 minutes.
Described pickling adopts the watery hydrochloric acid of 5%, and pickling time is 5 minutes.
Described phosphatization adopts PZn-9, and phosphating time is 5 ~ 10 minutes, and phosphatization temperature is 40 ~ 45 DEG C.
Phosphating time is 5 minutes, and phosphatization temperature is 45 DEG C.
Described a period of time is 1 ~ 3 minute.
Specific embodiment one,
A kind of LED display casing spraying method, comprises the steps:
Step 1, cast iron is compression molded into body structure;
Step 2, cast iron body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, on the aluminium powder layer of casing, arrange ground connection solder joint, each casing arranges a ground connection solder joint, and ground connection solder joint is arranged at the back side of casing, and arranges protective layer on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization; Described pickling adopts the watery hydrochloric acid of 5%, and pickling time is 5 minutes; Described phosphatization adopts PZn-9, and phosphating time is 5 minutes, and phosphatization temperature is 45 DEG C.
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
Specific embodiment two,
A kind of LED display casing spraying method, comprises the steps:
Step 1, aluminium is compression molded into body structure;
Step 2, aluminium body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, on the aluminium powder layer of casing, arrange ground connection solder joint, each casing arranges a ground connection solder joint, and ground connection solder joint is arranged at the back side of casing, and arranges protective layer on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization; Described pickling adopts the watery hydrochloric acid of 10%, and pickling time is 2 minutes; Described phosphatization adopts PZn-9, and phosphating time is 10 minutes, and phosphatization temperature is 40 DEG C.
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
Specific embodiment three,
A kind of LED display casing spraying method, comprises the steps:
Step 1, cast iron is compression molded into body structure;
Step 2, cast iron body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, on the aluminium powder layer of casing, arrange ground connection solder joint, each casing arranges two ground connection solder joints, and ground connection solder joint is arranged at the back side of casing, and is positioned on two sides of casing, and arranges protective layer on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization; Described pickling adopts the watery hydrochloric acid of 7%, and pickling time is 6 minutes; Described phosphatization adopts PZn-9, and phosphating time is 6 minutes, and phosphatization temperature is 43 DEG C.
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
Specific embodiment four,
A kind of LED display casing spraying method, comprises the steps:
Step 1, cast iron is compression molded into body structure;
Step 2, cast iron body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, on the aluminium powder layer of casing, arrange ground connection solder joint, each casing arranges two ground connection solder joints, and ground connection solder joint is arranged at the back side of casing, and is positioned on two sides of casing, and arranges protective layer on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization; Described pickling adopts the watery hydrochloric acid of 8%, and pickling time is 8 minutes; Described phosphatization adopts PZn-9, and phosphating time is 8 minutes, and phosphatization temperature is 40 DEG C.
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
Specific embodiment five,
Specific embodiment three,
A kind of LED display casing spraying method, comprises the steps:
Step 1, cast iron is compression molded into body structure;
Step 2, cast iron body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, on the aluminium powder layer of casing, arrange ground connection solder joint, each casing arranges two ground connection solder joints, and ground connection solder joint is arranged at the back side of casing, and is positioned on two sides of casing, and arranges protective layer on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization; Described pickling adopts the watery hydrochloric acid of 9%, and pickling time is 8 minutes; Described phosphatization adopts PZn-9, and phosphating time is 7 minutes, and phosphatization temperature is 45 DEG C.
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
The LED box of this patent adds aluminium powder layer, and arranges earth point at aluminium powder layer, makes this casing can effective ground connection, has good effectiveness, avoids radiation.
Adopt the method to carry out the casing resistance to corrosion that processes to strengthen, be not easy to get rusty, and the black of casing is not easy to come off, the available protecting electronic devices and components of LED display, improve the life-span of LED display.
Claims (7)
1. a LED display casing spraying method, is characterized in that: comprise the steps:
Step 1, metal material is compression molded into body structure;
Step 2, body structure to be cleaned, remove surface dust;
Step 3, to the aluminium-plated bisque of the outer surface of casing;
Step 4, ground connection solder joint is set on the aluminium powder layer of casing, and protective layer is set on ground connection solder joint;
Step 5, on the inner surface and aluminium powder layer of casing, carry out surface sand-blasting;
After step 6, certain interval of time, carry out acid washing phosphorization;
Step 7, surface plastic spraying is carried out to the casing after acid washing phosphorization;
Step 8, resin-coating is carried out to the tank surface after plastic-blasting.
2. LED display casing spraying method according to claim 1, is characterized in that: the metal material in described step 1 is cast iron or aluminium.
3. LED display casing spraying method according to claim 2, is characterized in that: the metal material in described step 1 is cast iron.
4. LED display casing spraying method according to claim 3, is characterized in that: described pickling adopts the watery hydrochloric acid of 5% ~ 10%, and pickling time is 2 ~ 5 minutes.
5. LED display casing spraying method according to claim 4, is characterized in that: described pickling adopts the watery hydrochloric acid of 5%, and pickling time is 5 minutes.
6. LED display casing spraying method according to claim 3, is characterized in that: described phosphatization adopts PZn-9, and phosphating time is 5 ~ 10 minutes, and phosphatization temperature is 40 ~ 45 DEG C.
7. LED display casing spraying method according to claim 6, it is characterized in that: phosphating time is 5 minutes, phosphatization temperature is 45 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410666589.9A CN104338666B (en) | 2014-11-20 | 2014-11-20 | A kind of LED display casing spraying method |
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| CN201410666589.9A CN104338666B (en) | 2014-11-20 | 2014-11-20 | A kind of LED display casing spraying method |
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| CN104338666A true CN104338666A (en) | 2015-02-11 |
| CN104338666B CN104338666B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731760A (en) * | 2019-03-04 | 2019-05-10 | 杭州柯洛建材科技有限公司 | A kind of lacquer spraying technique of Chinese style ancient architecture aluminium alloy element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115129A (en) * | 1995-06-16 | 1996-01-17 | 青岛高科技工业园金斯达通信开发有限公司 | Cable connection case and its surface treatment technology |
| CN2676567Y (en) * | 2003-07-14 | 2005-02-02 | 陈军 | Component for current conducting shielding cabinet and casing |
| CN103350062A (en) * | 2013-06-28 | 2013-10-16 | 洛阳华明变压器有限公司 | Processing technology of sand-corrosion resistant transformer box |
-
2014
- 2014-11-20 CN CN201410666589.9A patent/CN104338666B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115129A (en) * | 1995-06-16 | 1996-01-17 | 青岛高科技工业园金斯达通信开发有限公司 | Cable connection case and its surface treatment technology |
| CN2676567Y (en) * | 2003-07-14 | 2005-02-02 | 陈军 | Component for current conducting shielding cabinet and casing |
| CN103350062A (en) * | 2013-06-28 | 2013-10-16 | 洛阳华明变压器有限公司 | Processing technology of sand-corrosion resistant transformer box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731760A (en) * | 2019-03-04 | 2019-05-10 | 杭州柯洛建材科技有限公司 | A kind of lacquer spraying technique of Chinese style ancient architecture aluminium alloy element |
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| CN104338666B (en) | 2016-08-17 |
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Inventor after: Wang Zhenfei Inventor before: Shen Zhiguang |
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Effective date of registration: 20170808 Address after: 211409 Jiangsu city of Yangzhou province Yizheng Dayi Town Industrial Zone No. 358 Patentee after: YANGZHOU ZHENYU ELECTRIC EQUIPMENT CO.,LTD. Address before: 214028 Jiangsu Province, Wuxi New District No. 7 Changjiang Road, Science Park, No. two, No. 501 Patentee before: WUXI COCIS ELECTRONICS TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220713 Address after: 030032 room 210, No. 3, Chuangye street, Taiyuan Xuefu Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Shanxi jiuxun Technology Co.,Ltd. Address before: 211409 No. 358, industrial concentration zone, Dayi Town, Yizheng, Yangzhou City, Jiangsu Province Patentee before: YANGZHOU ZHENYU ELECTRIC EQUIPMENT CO.,LTD. |