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Facade bonding is one of the most widely used acrylic bonding technologies

Update:11-10-2019
Summary:

1.docking Place two acrylic sheets to be docked horizon […]

1.docking

Place two acrylic sheets to be docked horizontally on the operating platform, close them, and stick a tape on the bottom to leave a gap of no more than 0.3mm to prepare the adhesive. Use a syringe to inject the Kelly adhesive from the side evenly and slowly from the gap until it is fully filled. After the film is fully cured, remove the tape.

2.the facade bonding

Facade bonding is one of the most widely used bonding techniques and is commonly used in the manufacture of various acrylic products. First wipe the surface to be bonded clean. It is better to use the master to achieve the bonding so that the adhesive does not shake, which is beneficial to improve the quality of the bonding. The bonding of the acrylic sheet within a thickness of 3 mm can be achieved by directly injecting the Kelly Bond directly and slowly from the side with a syringe. Acrylic sheet bonding with a thickness of more than 3mm can be padded into a thin metal wire, and the bonding can be completed by capillary action. The wire can be drawn before the adhesive is cured, or the tape can be protected by sticking to the part that does not need to be adhered, leaving Apply adhesive to the adhesive part, and then insert it into the acrylic plate to squeeze out the bubbles.

3.the bevel bonding

The bonding bevel must be at a 90 degree angle to prevent displacement of the surface to be bonded. It should be uniform and slow when applying Kerrybond. The master can be removed after it has been fully cured.

4.plane bonding

Plane bonding is a special method. First wipe the surface to be cleaned and place it horizontally, and put a proper amount of Crestron products on it. One side of the other acrylic sheet was placed obliquely on the adhesive-coated acrylic, and then uniformly lowered slowly, and the bubbles were extruded from one side to complete the bonding.

5.matters needing attention

1. All acrylic adhesives can corrode the surface of the acrylic sheet and leave traces that are difficult to remove. Therefore, the adhesive-free method can be used to protect the parts that do not need to be bonded.

2, grease, dust or pores will be difficult to evenly coat and leave bubbles, so must be removed before bonding.

3. If the amount of the adhesive is too small when bonding, the adhesive will be brought into the air when it shrinks.

4. The direct blowing will make the edge of the bonding surface white due to the rapid evaporation of the adhesive.

5, indoor temperature, temperature and other factors also have a certain impact on the bonding of the acrylic sheet.

6. The stress on the surface of the acrylic sheet and the surface stress and degradation caused by the cutting tool will affect the bonding effect of the acrylic sheet.

7. Before the adhesive is completely cured, exposure to direct sunlight for a long time will cause different degrees of yellowing of the acrylic product, which will seriously affect the aesthetics of the acrylic product.

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