China's first professional speaker diaphragm coating manufacturers

First, common adverse phenomena and maintenance methods: 

1: Surface indentation of PVC skin: treatment method: direct hot blowing (pay attention to temperature) to indentation part of PVC skin can be used as hot air in air tube, so that PVC skin will soften and indentation disappear.

 2: PVC skin surface scratches (not worn bottom: treatment: sanding paste on the scratches along the PVC skin lines (first with coarse sand, then with fine sand) until the scratch can not be seen. Spray green beads for cleaning. 

3. Clip PVC skin: treatment method: apply a small amount of 502glue with the blade to percolate to the stitch skin of the chuck, press quickly with the wood strip. 

4: front plate (absorbent PVC skin shrinkage. Treatment method: PVC skin added glue, and then gently heated with the wind tube, with wood strip can be flattened. 

5: the horn hole is connected to the bubble, the PVC skin foaming of the coaming plate is connected: treatment method; a small amount of PVC glue is injected into the foaming place with the syringe, then heated with the tuyere, then pressed flat with the wood strip.

 6: top angle PVC leather grinding through exposed wood: treatment: can be directly blackened with black oily pen. 

7: PVC skin foaming next to the decoration ring; Treatment method: remove the decoration ring, blow PVC leather with the air tube hot air file, add PVC glue, then blow with the air tube, use cloth to smooth. Lock the decorative ring screws (do not lock too tightly to keep a gap between the ring and the PVC leather, about a sheet of paper thickness.