Notes on choosing the right protective plastic film

As a manufacturer of protective films, Auge is committed to researching the types of protective films and the driving force of market growth. As the demand for the protective film market continues to grow, considering the increasing demand for product protection, it is very important to choose the type that suits your needs.

Determine the type of surface to be protected. The protective film can be applied to many types of surfaces, such as:
Metal
Plastic
Glass
Painted Surface

In addition, these types of surfaces can have a variety of textures, including smooth, embossed or coated. Therefore, it is necessary to understand the nature of the surface to be protected. If an unsuitable film is selected for a given surface, it may cause bonding failure.

protective plastic film

Understand Application Conditions of Protective Plastic Film
It is a good idea to understand the conditions of the protective film in a given application. Clearly pre-determining the nature of the application will help ensure that the selected protective film can maintain the performance level throughout its required life cycle and reduce the possibility of failure.

Know the Attributes of Protective Plastic Film
Although all protective films are designed to protect surfaces, they have unique properties. These include:
Color tint
Optical grade clarity
The ability to prevent electrostatic discharge

Before choosing a protective film, you must first evaluate the required characteristics. This will ensure that the film provides the correct quality to achieve the desired end-use results.

protective plastic film
Smart Adhesive for Protective Plastic Film
Adhesives also play an important role in determining the performance of protective films. Therefore, it is best to ensure that the selected adhesive meets the needs of the end use before manufacturing the film.

Why You Need An Automated Optical Pcb Inspection Of The Assembly

Whether turning the pages of the Sherlock Holmes mystery or watching the replay of "Monk", I hope to see these investigators find important details that others cannot. However, even the largest of these detectives finds it difficult to find problems on the assembled printed circuit board. On complex circuit boards, there may be thousands of opportunities for defects, and manual inspection simply cannot reliably search for all defects within a reasonable time.

As part of the different inspection methods that contract manufacturers should use, the Automated Optical PCB Inspection (AOI) system will handle most inspections on the PCBA. The system can quickly assess thousands of details, which are too small for the human eye to capture and report any detected problems to the operator.

What is AOI PCB assembly inspection and how does it work?
Automated optical inspection equipment has been around for a while, and it is constantly being improved and updated to improve its functionality. This inspection equipment is used in many industries, including PCB manufacturing, for inspecting bare boards, solder paste applications and assembly. For PCB assembly, the AOI system will check component placement and soldering, and will alert inspection technicians of various potential problems, from the use of incorrect parts to bad solder connections.

AOI PCB inspection equipment relies on high-resolution camera systems and different illumination sources such as fluorescence, LED, ultraviolet and infrared to capture image arrays. When assembling a new PCB, the contract manufacturer will run the circuit board through the AOI system after the parts are placed, and then run again after the circuit board is soldered.

In subsequent runs, the AOI system will scan each assembled board and compare these images with the archived images of the gold standard board. When areas that fail to meet the gold standard are found, it will mark these areas as possible defects so that technicians can conduct more detailed inspections.
AOI adjustability: the key to successfully preventing assembly defects
PCB AOI equipment can be "adjusted" according to the needs of the assembled board. The system's adjustability allows contract manufacturers to filter out acceptable problems and capture hard-to-see defects that were difficult to find through visual inspection in the past. The manual inspection process requires technicians to look at every part, marking, and solder joint on the board, which may involve thousands of details in order to check on a complex board. With so many details to check, it is easy to understand the incompleteness.

On the other hand, the automated optical pcb inspection system enables highly skilled inspectors to focus only on the relatively few potential defects identified by the system. Compared with the labor-intensive manual inspection process, this allows your CM to discover actual defects in a relatively short time.

At Insun, we have a variety of testing and inspection methods that we often use on all production boards including AOI. From the incoming inspection of raw materials and parts to the functional testing of the assembled boards under power, we all ensure that your boards have been assembled and operated as expected. Our goal is to provide you with the best assembled printed circuit board.

Maintenance Method of Constant Temperature and Humidity Electronic Test Chamber

Maintenance method of constant temperature and humidity electronic test chamber:
1.Before the test, be sure to check that the water level in the water tank is not too high or too low. If the water overflows the water tank or is too low, the wet ball test cloth will not absorb water properly, and the accuracy of the wet ball will be affected. The water level can be kept about six minutes full. The water level of the water tank can be adjusted to adjust the height of the water tank. You need to check and add water almost every two or three tests. You can see the water pipe in front to replenish the water. The machine will alarm and stop working when there is no water.
2.If the machine is operated below 0 ℃, avoid opening the door of the box as much as possible, because at low temperature, if the door is opened, frosting of the internal evaporator and other parts is likely to occur, especially the lower the temperature, the worse Must be opened, the door opening time should be minimized.
3.When the temperature test box has completed low-temperature operation, be sure to set the temperature to 60 ° C and perform the drying process for about half an hour, so as not to affect the measurement time or freezing phenomenon of the next working condition.
4.The radiator (condenser) of the freezer should be regularly maintained and kept clean.
5.The humidifier barrel's water inlet pipe must completely exhaust the remaining air to prevent water from entering. After the machine finishes running at low temperature, it is necessary to set the normal temperature condition (30 ± 5 ℃) so that the temperature in the box will be normal temperature when the machine is stopped, so as not to affect the freezing phenomenon caused by the low temperature in the box and the fogging of the window glass .
6.During operation, unless absolutely necessary, please do not open the door of the box, otherwise it may cause the following adverse consequences:
－High temperature and humidity rushing out of the box is very dangerous for the operator.
－The inside of the door is still hot, which is easy to cause injury.
- Hot air may trigger a fire alarm and cause incorrect action.
7.Please note that the automobile rain testing chamber must be grounded safely and securely to avoid static induction.
8.Avoid turning off and on the freezing unit within three minutes.
9.If a hot sample is placed in the box, please use an external power supply for the sample power control. Do not use the power supply of the machine directly.
10.Circuit breakers and temperature over-temperature protectors provide safety protection for the test products of this machine and the operator, so please check regularly.
11.The correct installation of wet ball gauze can only ensure the correct measurement of relative humidity.
12.Testing of explosive, flammable and highly corrosive substances is absolutely forbidden.
13.Please read the controller manual and related manuals before operating the constant temperature and humidity machine.

The market explosion of TWS

What is the TWS Coin Battery?
The TWS headset is a true wireless Bluetooth headset. The main feature is that it has no physical wires and is easy to carry. The cordlessness has prompted TWS headsets to require rechargeable batteries, including a pair of headset batteries and a charging compartment battery, accounting for about 10% -20% of the total cost. It is a key component that affects various performances such as battery life.

After replacing the
rechargeable coin battery
, the overall length of the headset becomes smaller, and the wearing aesthetics are significantly improved. We expect button batteries to become the mainstream of the industry in the future. At present, VDL is one of the major manufacturers of TWS earphone button batteries in the world, with independent core patent technology. At the same time, considering the precision of the TWS cell manufacturing process and high technical barriers, new entrants will face patent disputes, insufficient production capacity, technical barriers and other issues. VDL is expected to usher in high growth early next year.


VDL
designs, manufactures and sells small polymer lithium batteries and is recognized as one of China's top high-tech companies.

Coin Battery


1254C Coin Battery


Compared with other batteries, button batteries are easier to standardize, more ergonomic, high space utilization, and easy to process and assemble. VDL's button battery has the following advantages:
1. Independently developed patented technology
2. High performance
3. Good security
4. Small size, durable and safe for TWS

The Advantages of Rechargeable Button Batteries
When a button battery such as Airpod Pro is rated at 93 milliwatts, we believe that it has reached its maximum capacity. However, with the development of new Bluetooth technology, TWS can certainly use longer-lasting batteries.

To keep prices low, button batteries will not be used in semi-wireless earbuds because lithium polymer batteries are cheaper and fit the dimensions of these earbuds.

Before reducing the receiving coil to a diameter equal to or less than 12mm, it can be installed in a coin cell. Moreover, the button battery has been wirelessly charged during the day, and it is not far away that the charging box becomes a wireless charger.

CNC Glass Cutting Machine

The use of plexiglass began in the 1930s and is a synthetic polymer plastic whose main characteristic is optical transparency. The new material plexiglass completely solves the requirements of aircraft development, providing structural simplicity and the required rigidity and safety.

At present, the main characteristics of plexiglass are required in various industries, such as high strength, impact resistance, low weight, high transparency, and easy processing. For small businesses specializing in advertising, design services, architecture, and souvenir products, plexiglass is almost the main structural material.

Processing methods
Plexiglass is perfectly processed by cutting. However, this will produce a large number of small chips. Since the plexiglass melts at a relatively low temperature, the generated chips are easy to sinter and stick to the cutting edge of the tool. This makes it difficult to process and reduces the quality of the finished product. In addition, plexiglass is very sensitive to the sharpness of the tool: the minimum wear of the tool or milling cutter will cause a sharp decline in processing performance.

Another disadvantage of mechanical processing is that plexiglass is prone to contact damage. In addition, this is not only applicable to cutting tools-when the workpiece is fixed on the table, it may damage the surface of the workpiece. However, it is almost impossible to restore the product, such as finishing the polishing, so that the transparent surface is free of white turbidity!

CNC glass cutting machine can provide very high cutting accuracy and seam fineness. Because there is no cutting force, there is no need to install the workpiece, which means that the surface will not be damaged by mechanical clamping. Laser cutting and engraving will not produce chips or dust. The dot effect produced by the high-energy laser on the surface of the plexiglass will only cause the material to evaporate-the generated gas can be easily removed by the machine's standard exhaust system, and will not pollute the environment. The laser processing of plexiglass is carried out at high speed, and the specific processing cost is the lowest.

The CNC glass cutting machine can do all the work with plexiglass: coating large-format workpieces, graphically cutting complex contours, performing surface engraving and even 3D processing!

When choosing laser products for "plexiglass", we need to pay attention to:
1) Laser tube type
Generally, most "budget" models are equipped with laser tubes with mixed gas active media. The characteristics of gas lasers are high radiation stability and low specific energy consumption.

2) The shape and size of the processed workpiece
It is always recommended to take the machine "in large quantities" to the desktop area. The limiting factor here may be the budget and the area where the machine will be located on the production floor. It should be noted that machines with large working areas are more versatile equipment.

3) The power of the laser tube determines the thickness of the workpiece
For engraving plexiglass, 25-60 watts of power is sufficient. Cutting end-to-end workpieces with a maximum thickness of 10 mm will require 60-80 W of power. To process thicker workpieces, as well as parallel processing of workpieces, lamps with a capacity greater than 80 watts are required.

4) Processing speed
The higher the product's productivity, the greater the company's profit. Therefore, when choosing a laser machine, the focus should be on the maximum speed indicator.

5) Warranty support and service
These factors are very important, and equipment suppliers should be selected first, not only through the verification of the machine model sold, but also through high-quality customer service throughout the life of the equipment.