Hot runner temperature control box should be in line with

Hot runner temperature control box to meet the heat conduction and heat distribution law, to have a good temperature curve. Not as soon as possible, heating up too fast not only can not improve the production efficiency, but will cause the hot runner and related parts damaged.

As everyone knows, if the flow is not used for the first time, the channel wall will have a residue, if the hot runner temperature control box temperature began to rise fast, the residual plastic will be heated, and the flow of the heating will be very uneven, it will cause the residual flow according to the heating ring near the plastic scorched, and later the incident from the heating coil plastic is not melted away.

For example, with the fire baked sweet potato, not only hard outside the focus, but also the different locations of the sweet potato is not uniform heating. Therefore, no soft start, namely preheating process, it will cause adverse effects on the products, and will make the plastic hardening on the inner wall of the residual flow and even carbonization, attached to the channel, a long time will put the channel blocked, reduce the service life of the channel. Therefore, experts and scholars at home and abroad have agreed that the process of soft start must be started when the heating is started.