| 摘要 |
<p>An electrical heating element is manufactured by applying an electrically insulating refractory layer (15) to a thermally conductive body (10) by plasma flame spraying, then applying an element track (20) to a surface of the coated body by plasma flame spraying a mixture of the refractory material and a resistive heating material using a mask (19). A final layer (21) of a refractory material is then applied over the entire region of the element track, excepting contact areas which terminate said track.</p> |
