Category: Technology

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UV glue construction methods,precautions and some tool

UV glue construction methods,precautions and some tool

UV glue construction correct use method:

1. Ensure that the bonded surface is clean, clean, dry, free of grease, and flat.

2. Apply a suitable amount of UV shadowless glue on the surface of the adhered workpiece, then close it with another adhered workpiece and discharge possible air bubbles.

3, two sticky workpieces in the compact state, through a certain intensity of UV light or sunlight, so that the adhesive surface UV glue curing.

UV glue construction precautions:

1. The grease, moisture, impurities and flatness on the surface of the adhered workpiece will directly affect the bonding quality. Be sure to wipe dry and clean it to ensure that the bonding surface is flat.

2, rainy weather operation, be sure to ensure that the bonded workpiece is clean and dry, it is strongly recommended that the use of special glueless curing light for light curing, to ensure the quality of bonding.

3, in the bonding process, be sure to discharge possible bubbles; light curing process, to ensure that the sticky parts can be irradiated by UV lamp or sunlight, be sure to press the sticky workpiece, the thinner the adhesive layer, the more adhesive force it is good.

4. Before sticking the workpiece, do not move it under the UV lamp or sunshine to avoid whitening and affect the appearance. It is recommended to use the fixture.

5. The amount of UV radiation is very important for the curing of the UV adhesive, which is determined by the light intensity and the irradiation time. For UV shadowless adhesives, the use of special plastic curing light, the positioning time is usually within seconds, fully cured about 30 seconds or so; the use of sunlight exposure conditions, depending on the sunshine conditions, positioning time is usually within tens of seconds Full cure will require sufficient time.

6, for the remaining plastic affect the appearance of the product, you can accurately control the amount of glue to solve, or wipe the excess glue before light curing and then light curing.

7. Colored or thick glass will absorb ultraviolet or visible light, so that some of the band’s light can not pass through or be weakened, and affect the curing of UV shadowless glue, special glue (such as UV169) should be selected or confirmed through experiments. glue.

8. The service life of the UV lamp is usually 800-1000 hours. The intensity of the emitted UV light will become weaker and weaker as the use time increases. The new lamp should be replaced regularly.

9. UV shadowless adhesive belongs to industrial chemicals. Before curing with glue, please make protection and avoid direct skin contact. If you accidentally drop the skin, rinse it with plenty of water. For those who are allergic to skin, please Immediate medical treatment does not usually have an effect.

10. For more convenient use of UV, we can use some UV glue construction tools. Example: Manual UV glue cartridge kit.

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Adhesive bubble treatment method when stirring glue

Adhesive bubble treatment method when stirring glue. When the glue is stirred, a glue bubble is generated. It is best to use a vacuum machine to draw air bubbles. Stir thoroughly and move quickly to the vacuum tank to defoam. The bubbles will cause the liquid surface to rise and the liquid level will drop after the bubbles break. Vacuum size and vacuum time, look at the viscosity of the glue and the requirements of the product surface (Debubbling time is generally: 2 to 4 minutes). If there is no vacuum machine, it can be stirred clockwise for 2~3 minutes. After mixing evenly, the glue can be placed for 5~20 minutes to automatically deaerate.

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Evenly mix glue component A and the component B for the electronic sealant

Evenly mix adhesive and stirring for the electronic sealant. When the A and B glues are mixed, pour the proportion into the proportion The parts are mixed. Mix with stirring in one direction, not too fast and stir for about 3 minutes. Stir the bottom, wall, etc. of the container. If it is not evenly mixed, incomplete curing will occur later. The mixing vessel must be about 3 times the stirring compound.

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Conductive adhesive dispenser is composed of X, Y and Z triaxial axes.

The conductive adhesive dispenser is composed of X, Y and Z triaxial axes. The control system is mainly composed of a servo motor and a ball screw. It is controlled by a computer and is mainly used for dispensing electronic products.

Mainly used for communication products shell, machine station boxes, relays, switches, digital cameras, mobile phone motherboards, computer motherboards, calculators, mobile phone battery components, DVD, LED and semiconductor industries, etc., needle intelligent follow the path automatically for direction rotation. The conductive glue dispensing machine is equipped with computer-assisted program editing and teaching functions to enable the tracking position of the coordinate track to be displayed in real time, which is convenient, fast, stable in performance, and intelligent in breaking glue. It prevents glue from being pulled, which means that glue is saved and the glue repair process is reduced.

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The basic solution for pneumatic glue gun leakage air

The basic solution for pneumatic glue gun leakage air

1) Inlet air leakage: The connection degree between the air pump and the glue gun air inlet is not enough. You can choose to change the joint or connect the air pipe to the air inlet of the glue gun and fix it with wire.

2) Leakage of the gun body: The screw can be removed, reinstalled, and tightened. Or seal it with glass glue, serious air leakage, please contact the supplier to replace the gun body.

3) Leakage at the front of the barrel: The glue is too long, causing the front cover not to tighten. Or its front cover is screwed into place.

4) Air leakage at the rear end of the gun: Damage to the seal or damage to the rear muffler. Contact your supplier for replacement.

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Disposable static mixing tube features

Disposable static mixing tube features:

The tube core is composed of spiral blades arranged in sequence.
This structure type mixing tube has high efficiency, economy, durability and other characteristics.

When the two-component glue passes through each leaf, it is automatically divided into two parts. The mixing effect is excellent, and the interface sealability is good with no adverse reaction of any two-component glue.
Medium and low viscosity two-component mixing good tools.

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Adhesive mixing tool and glue filling machine choose knowledge

Adhesive mixing tool and glue filling machine choose knowledge: the difference in fluidity and viscosity: For liquids, they have the property of flowing, that under the influence of external forces and gravity, it will flow like liquid in all directions. The nature of this flow due to force is called the fluidity of the fluid. The fluidity is the consistency of the fluid. The fluidity is better, the consistency issmaller , and the fluidity is worse, the fluid is thicker.

For example, the viscosity and consistency of the glue are related to the flow and transfer properties of the glue. The two affect each other and have a very close relationship. For example: to increase the viscosity of the glue, the consistency of the glue also increases, and vice versa. Therefore, many people think that viscosity and consistency are the same. In fact, the viscosity and consistency of glue are different concepts. There is a certain difference between the two: “sticky” glue is not necessarily “thick”, and glue with large consistency does not mean high viscosity. The same viscosity of the glue, the greater the consistency, the worse the fluidity.