In the design of mold heating tube heating tube:

In the design of mold heating tube heating tube:

(1) Whether the power setting is reasonable: Whether a reasonable power load is selected according to its actual situation (high power load requires imported materials and imported technology), if the power load is too high, it will cause the heating tube to burn out.

(2) During the use of high-watt density single-head electric heating tube, due to its rapid heating and poor heat dissipation conditions, it often causes the external stainless steel tube body of the electric heating to burn, oxidize and deform, which causes the internal heating element-the electric heating alloy wire to melt due to high temperature air burning , Resulting in the shortening of the life of the single-head electric heating tube itself, so an excellent single-head electric heating tube not only needs to have good production quality, but also requires the material and processing aperture of the mold (the closer the aperture and the tube diameter are, the better). The suitable aperture is not only convenient for changing the single head In addition to the electric heating tube, it also facilitates the heat transfer between the two, thus prolonging the service life of the heating tube itself.

(3) The precision of the deep hole processing of the mold should be paid attention to. Do not drill at both ends, because the junction cannot be tightly closed and there are large pores, which causes poor heat dissipation of the heating tube and uneven temperature of the heated body.

(4) It should be noted that the magnesium oxide powder at the outlet end of the electric heating tube should not be exposed to pollutants and moisture in the use place to prevent leakage. It is best to reserve 5mm outside the mold.

(5) The electric heating tube should be used when the machine is turned on. It is best to preheat it for 5 minutes to avoid the risk of electric leakage due to humid air or water seeping into the tube. The electric heating machine must be equipped with a grounding wire.

(6) The electric heating tube should be fixed to protect the heating area from leaking and burning. Avoid using heat conductive mud to avoid carbon deposits in the inner hole and electric leakage, and it is not easy to replace the electric heating tube in the future.

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