What are the problems and solutions in the processing of polycarbonate sheets?

As an engineering plastic sheet with excellent performance, polycarbonate sheets are widely used in many fields such as construction, automobiles, and electronics. However, in order to give full play to its performance advantages, it is necessary to effectively solve the problems that occur during the processing.

1. Cutting problem

The cut is uneven and has burrs.

Reason: saw blade wear, uneven cutting speed, and loose fixing of the sheet.

Solution: Check the wear degree of the saw blade regularly and replace the worn saw blade in time; adjust the cutting speed to maintain a uniform speed; check the fixing of the sheet to ensure firmness.

2. Drilling problem

The sheet is broken and the hole position is offset.

Reason: the drill bit is blunt, the drilling speed is too fast, and there is stress inside the sheet.

Solution: Check and replace the drill bit regularly; for sheets that may have internal stress, perform appropriate heat treatment before processing. Check the drill bit and the fixture of the drilling machine to ensure that the drill bit is firmly installed and reduce shaking.

3. Bending problem

Uneven deformation of the bending part

Reason: uneven heating temperature, inappropriate mold, uneven pressure during bending.

Solution: Adjust the heating equipment to ensure that the sheet is heated evenly; replace the appropriate mold; pay attention to applying uniform pressure during the bending process.

Cracks appear on the sheet

Reason: The bending radius is too small and the sheet is bent too much.

Solution: Increase the bending radius; check the quality of the sheet and replace it in time if there is a defect; control the degree of bending to avoid excessive bending.

4. Bonding problem

(1) Insufficient bonding strength

Reason: Improper selection of adhesive, unclean surface treatment, uneven application of adhesive, and incomplete curing.

Solution: Fully understand and match the sheet and adhesive before bonding, and select the appropriate adhesive; strictly follow the surface treatment process to ensure the bonding surface is clean; accurately control the amount and uniformity of the adhesive applied; strictly abide by the curing conditions of the adhesive.

(2) Bubbles are generated

Reason: Air is mixed in during glue application and insufficient pressure is applied.

Solution: Try to avoid air mixing during glue application, and use scraping and other methods; increase the strength and time of pressure application to expel bubbles.

5. Milling edge problems

When milling edges, you may encounter problems such as chip blockage and tool wear.

Solution: Choose appropriate tools and cutting parameters, and regularly maintain and replace the tools. At the same time, keep the work area clean and tidy to avoid debris affecting the processing effect.

In short, the processing of polycarbonate sheets needs to strictly follow the correct processing technology, and pay attention to timely solving and effectively avoiding various problems that arise during the processing. Only in this way can polycarbonate sheet products with qualified quality and excellent performance be processed to meet the application needs of different fields. In actual operation, operators should also continue to accumulate experience and continuously improve processing methods to improve processing efficiency and quality.