| 摘要 |
<p>The invention relates to an electric immersion heater, in particular for corrosive liquid baths, and its process of manufacture. It comprises at least one heating element (1), substantially a body of revolution, arranged in a sheath (2) coaxial with the element. The said sheath has at least its outer part made of a porous ceramic impregnated at least in its surface region with a corrosion-resistant polymer. <IMAGE></p> |
