| 摘要 |
The invention relates to a tubular insert for a magnetic inductive flowmeter, a production method for such a tubular insert and a flowmeter. The tubular insert (6) essentially comprises an electrically-insulating material, in particular, rubber, reinforced with a metal mesh (7), at least in a measuring section. The tubular metal mesh (7) comprises one or more mesh sections (40), pre-prepared from sheet mesh by stamping, bending and welding butt edges running essentially parallel to the tube axis (14) such as to form an essentially tubular metal mesh (7). The tubular metal grid (7) is embedded in the electrically-insulating material by a press or casting method such that the openings (20) in the metal mesh (7) have the electrically-insulating material passing therethrough and the electrically-insulating material essentially covers the inner and outer surfaces (30, 31) of the tubular material. A robust, tubular insert is thus achieved, with a corresponding cheap production cost. |
