2 results about "Malleable iron" patented technology

This utility model relates to the field of cable harness technology and discloses a lightweight electric vehicle cable harness, including a flexible square corrugated tube with a placement groove inside. This utility model uses the flexible square corrugated tube as the external protective structure of the cable harness. Because it uses a flexible material, it can adapt to the complex installation space inside an electric vehicle and will not easily break during bending, ensuring the safety of the internal cables. Furthermore, the square shape of the flexible square corrugated tube allows for easy stacking during installation, improving space utilization and preventing movement. It also eliminates the need for additional support components to fill gaps, reducing overall weight and achieving the lightweight requirement. A malleable iron wire is fixed to the outer wall of the placement groove, allowing the flexible square corrugated tube to maintain its shape. A square insulating sheet is fixed to the inner wall of the flexible square corrugated tube, primarily serving as insulation. The inner shell protects the cables.

A black heart malleable cast iron according to one embodiment of the present invention comprises a ferrite matrix and graphite aggregates contained in the matrix, while containing, in terms of the mass ratio, from 50 ppm to 100 ppm of boron and from 65 ppm to 200 ppm of nitrogen. With respect to this black heart malleable cast iron, the crystal grain size number of the matrix is from 8.0 to 10.0, said crystal grain size number being obtained by quantifying the grain size of the matrix by comparing the metal structure photograph thereof with the standard diagram of crystal grain sizes.