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压铸模的浇注系统,一般由浇道、导向和内浇口三部分组成。浇道(或称流路)的任务是以最小的热损耗和压力损耗把液态金属传输到型腔。内浇口和浇道由导向部分相连,它的任务是给液态金属作适当的加速,使金属流按预定的方向流向内浇口,从而有控制地扩散到型腔内。外形尺寸较大的压铸件,常采用长而薄的内浇口,因此液态金属通过浇道后,需要重新分配,然后由内浇口高速流入型腔各部而获得较理想的填充。目前用得较多的浇注系统有两种,一种是截面逐渐收小的(锥形)切线式浇道,它与铸件侧面的内浇口相接,一般采用T形对称式较多,使金属流分成两路进入型腔。这种结构的内浇口长度可达1000m,适用于外形尺寸大
Casting die casting system, generally by the runner, guide and gate three parts. The task of the runner (or flow path) is to transfer the liquid metal to the mold cavity with minimal heat loss and pressure loss. The gate and sprue are connected by a guide. Its task is to properly accelerate the liquid metal so that the metal flow is directed in a predetermined direction toward the gate to diffuse into the cavity in a controlled manner. Large size die-casting, often with long and thin gate, so the liquid metal through the runner, you need to redistribute, and then by the gate into the cavity at high speed and better access to each part of the fill. Currently used more pouring system, there are two, one is gradually smaller cross-section (tapered) tangential runner, which is connected with the gate side of the casting, the general use of T-shaped symmetry more, so that The metal flow splits into two cavities. This structure of the gate length of up to 1000m, suitable for large size