| 摘要 |
<p>The blasting head (100) has a blasting head housing (10) connected with a blasting agent feed line and an air supply line (40). A blasting agent feeding element (30) is provided, which has a metallic or ceramic outer sleeve (35) with a cone-section shaped head and an inner sleeve (36) made of boron carbide or elastomeric polyurethane casting resin with a head, which forms a blasting agent feed nozzle head (31). A cage element (50) is provided with an air passage aperture (51) surrounding the blasting agent feeding element and a front funnel ring disk with a cone-funnel shaped opening.</p> |
