(1) The runner should be as short as possible, especially for needle tip systems or materials with poor fluidity. The shorter the runner, the lighter the ventilation burden of the Chair Mould(FURNITUREMOULD) ... more(1) The runner should be as short as possible, especially for needle tip systems or materials with poor fluidity. The shorter the runner, the lighter the ventilation burden of the Chair Mould(FURNITUREMOULD) https://www.furnituremould.com/product/chair-table-stool-mould/
. Less runner material will shorten the moulding cycle and reduce the loss of pressure and temperature.
(2) Easy component release. The design of the runner is usually conical. The taper of the two plate molds is 2"~4", and the taper of the three plate molds is 5"~10". Roughness Ra 1.6~0.8 um. The taper must be appropriate, causing the speed to decrease and creating eddy currents and bubbles, while the small taper increases the flow rate, which can result in difficulty in injection and difficulty in peeling.
(3) The size of the runner should meet the assembly requirements. In order to ensure a smooth injection, the gate and the nozzle of the injection machine are not allowed to overflow the material, which makes the peeling... less
