| 摘要 |
The present invention relates to a nozzle intended for the application of fluid materials, which at a front end thereof has an aperture opening into a slot. A central portion of the slot is functioning to release most of the material straight ahead. Furthermore, the slot has side portions functioning to release material in sideway directions. In a preferred embodiment, the front end is shaped like a truncated cone with a flat top, in which the slot is formed. The slot is thus divided into three straight portions with the central portion in the flat top and the angle of the side portions defined by the top angle of said cone. Under certain conditions, the jets of material released from the various portions are held together by a surface tension. As most of the material is released from the central portion, the jets from the angled side portions will be deflected towards the center jet, resulting in a jet with a relatively even width, and a resultant coating being thickest in the middle. |
