冷室压铸机用新型熔融金属输送系统

New Molten Metal Delivery System for Cold Chamber Die Casting Machine

介绍了用于冷室压铸机的新型金属液输送系统的4个主要部件——泵、电源、管道系统和控制系统的结构特点,泵主要由两个同轴耐火缸体组成,其中设有运转部件;电源为1200Hz的单相机组;管道系统由外部的钢管和内部的两层同轴耐火套管组成,用110V的单相电源分五段独立加热;控制系统主要有4个部件——逻辑程序控制器(PLC)、泵系统、金属液面传感器和管道系统,其中金属液面传感器是该系统的关键创新点。使用这个输送系统传送的金属液,不与空气接触,大大减少了铸件由于氧化和吸氢造成的缺陷。

Introduces construction characteristic of four main components-----pump, power supply,piping and control systems of new molten metal delivery system for cold chamber die casting machine. The pump body primarily consists of two concentric refractory cylinders, and has not moving parts. The power is a 1 200 Hz single-phase unit. The piping system consists of a steel outer pipe and two concentric refractory liners, and is heated seperatly by the single-phase 110 V power in five zones. Control system has four main components: the programmable logic controller (PLC), the pumping system, metal level sensor and the piping system. The key innovation of the control system is the level sensor. Using this delivery system, the melt is not expose to air, and produced castings will benefit from a dramatic reduction in oxide formation and absorption of hydrogen.