| 摘要 |
A method of producing a filter unit, such as an air/oil separator, having a tubular filter element bonded at one end to an end cap, is proposed. The method comprises: providing a tubular filter element and an end cap; melting a portion of the end cap; and embedding an end of the filter element into the melted portion of the end cap. The melted portion, on cooling, solidifies to bond the tubular filter element to the end cap. The end cap can be formed of thermoplastic containing an electrically conductive filler. The end cap can be formed of a thermoplastic having a melting point of at least 180 °C. The method may further comprise, after the embedding step, a step of forcing melted thermoplastic from the melted portion radially against a side wall of the tubular filter element. |
