Cast iron platform

Casting defects, causes of defects: The platform foam slurry coated three times, if not completely dry, it will cause the resulting foam is not completely melted, and the residue is not completely drain clean plate after machining defects found, using inlay fill France patched; the most direct way is to repair the defect trim level, with the same material interference mosaic up, and top with a plurality of screw fastening, break down over the patch, lighting hole, tapping the bottom platform tighten The riveting real, then iron electrode welding; then polished scraping, ensure flatness defects does not exceed the difference. btjdlj@vip.163.com