1. The necessity of compaction The adhesive produces a […]
1. The necessity of compaction
The adhesive produces a bonding effect while it is curing. Therefore, during the curing process of the adhesive, ensuring the adhesion between the adhesive surfaces is an important condition for ensuring the bonding effect. This requires that the wall lamp must be adhered before the adhesive begins to cure. The contact pressure is exerted on the contact surface at least. If during the curing process, the adhesive surfaces cannot maintain close contact, voids must be created in the adhesive layer, affecting the bonding quality. Appropriate application of pressure force can improve the wettability of the adhesive and its permeability to surface irregularities and help form a complete thin and uniform adhesive layer.
2. Pressing force size
The size of the tightening force is related to the type of the adhesive and the type of the adhered material, and is generally within a relatively wide range of 0.2 to 1.5 MPa. The pressing time depends on the type of adhesive and curing temperature. The application of the pressing force is generally started after fitting or aging, and the wall lamp does not release the pressure until the adhesive is completely solidified or substantially solidified.
3. Clamping operation requirements
The general requirements for the compaction operation are: the size of the compaction force is appropriate, the pressure distribution is uniform, and the compaction time is sufficient, and the adhered body cannot be subjected to pressure deformation (except in special cases).
4. Pressurization method
There are various forms of pressurizing methods. When selecting a wall lamp, it is necessary to select according to the type, shape and input characteristics of the adherend. Commonly used compression methods include lever weights, spring clamps, multiple heavy weights, tight sandbags, airbag cushions, spring cushions, autoclaves, tight pin areas, and screw clamps. Plate type laminated zone tight method.