• 2021-11-15

When molding a plastic injection tooling, there is a problem that often plagues the producer, that is, the injection molded part will have the ejector stress mark. Generally, there are two kinds of phenomena, one is slightly mark, that is, under the fluorescent lamp, the product and the human eye can only be seen at an angle of 45 degrees. If this happens, is this plastic case not usable? This dep...

• 2021-11-15

In view of the shrinkage and deformation of the gear and the unrequired precision of the gear shaft hole during the injection molding of the plastic gear, the optimized design of the gating system, the demolding mechanism and the cooling method are used to produce the precision plastic gear that meets the requirements, thereby improving the gear’s performance. performance. 1. With the rapid d...

• 2021-12-10

During Injection Molding, there will not be much molten material in the vent hole, because the molten material will cool and solidify at the place to block the channel. The opening position of the exhaust port should not be facing the operator to prevent accidental spraying of molten material and hurting people. The clearance between the ejector rod and the ejector hole, the clearance between...

• 2022-08-29

Experience Sharing On Plastic Injection Tool Submarine Gate Design 1) The included angle of α° can be designed in the range of 60° to 35°, depending on the height of the position that submarine gate is located. 2) The included angle of β° can be designed in the range of 8° to 20°, the bigger the better for the gate demolding. 3) L1>8 and L1.>2*D, so that the submarine gate can be easier to d...

• 2022-09-09

Calculation of the Stiffness and Strength of the Plastic Injection Mold --China Plastic Injection Mold Maker Lyter Engineering Ltd share For quality plastic injection molds, when the plastic melt is filling the cavity, the pressure on the cavity gradually increases. When the cavity is completely filled, the pressure in the cavity reaches the maximum value. Then, as the plastic melt cools, the pres...

• 2022-10-19

Lyter Engineering_Design of Gate and Runner Arrangement of Plastic Injection Molds (2) The principle of runner arrangement   1) Make the distance of melten plastic material from the sprue to each gate as equal as possible. 2) Make the pressure center of the cavity coincide with the center of the injection machine as much as possible. Balanced arrangement of runners 1) Natural balance: Th...