Difficulty:
1. Make grooves on the surface of 3mm Glass and require the grooves to be bright surface；
2.printing ink requirements can be resistant to high temperature 200 ℃
3. The middle hole is 330mm*80mm, and the hole is only 15mm away from the edge
4. The semi-transparent area shall meet the all in black effect.
Overcome:
1. The surface of Glass and grooves shall be polished, and special grinding heads and fixtures shall be made for processing.
2, Resistance to high temperature of 200 ℃, the preferred is ceramic printing , while cause glass deformation problems,After re-selecting the high temperature resistant ink, ensure that there is no abnormality at 250°C.
3, For the middle hole, as CNC processing problems, normal can not be achieved,change to cut the hole with a water knife. Then CNC edge processing. Reduce the fragment rate and realize the feasibility of mass production.
4. All in black effect is achieved in two ways: semi-permeable ink screen printing and special effect film material.
