| 摘要 |
A manufacturing method for the manufacturing of a plastic-framed brush element. In present brush elements metal backing strips to which the brush fibres are attached are used. They are, howerver, heavy in construction, unbalanced, and sometimes open in use so that the fibres detache themselves from the backing part. In the manufacturing method in accordance with the invention the frame section is formed of plastic in such a way that a molten plastic strip (3) is sprayed on top of the ribbon of joined fibres and a predetermined length of the preform thus formed is pressed between forms (4 and 5), when a very dimensionally exact, light, and durably constructed brush plate (6) of solid plastic is formed. |
