| 摘要 |
PURPOSE: A gas-exhaust mold core is provided to improve the quality of products and increase economical effect by the mass-productions of products using mold injection and extrusion. CONSTITUTION: A gas-exhaust mold core comprises a body core(1), an insert core(2), and a square groove. The body core is formed in the shape of a square or a cylinder. The space accepting the insert core is formed in a center area. The insert core is coupled with the body core to prevent the insert core from pulling out. A square groove is formed on the lower part, so that gas flows out of the mold.
|
