The control gate opening time of the needle valve hot runner is the same as the control gate opening time of the needle valve hot runner. 1. By controlling the gate opening time, the needle valve hot runner ensures smooth filling of the mold cavity and balanced melt flow, eliminating welding marks.

1、 Advantages of a hot runner system: 1. Saving plastic materials: In pure hot runner molds, there is no cold runner, so there is no production waste. This is particularly significant for applications where plastic prices are expensive. In fact, major international hot runner manufacturers have experienced rapid development during an era of high prices for petroleum and plastic raw materials.

A hot runner system typically consists of a hot nozzle, partition, temperature control box, and accessories. Hot nozzles usually include hot nozzle type, casting sleeve type, and valve needle type. The splitter plate is used for multi cavity or multi-point feeding or single point feeding in molds, but there is a deviation in the feed rate.

There are three main types of hot runner molds: hot pointed, sleeve type, and valve needle type. Each type can be further subdivided into many families. The cross-sectional diameter of the runner in a hot pointed nozzle can range from 4 millimeters to 16 millimeters, and the nozzle is also made into different sizes. There are also many variants of nozzle gate inserts to meet different application requirements,

The splitter plate mainly consists of three parts: heating system, temperature sensing system, and flow channel system. There are two ways to use a heater, one is through a heating rod, and the other is through a heating coil. For now, it is still the mainstream heating coil structure, and the main Taiwanese brands used to be the heating rods. The arrangement of heating coils is definitely a knowledge,