In the production of PVC three-dimensional dolls, there is often a problem where the head or hands and feet are easily twisted and broken from the connection of the body when customized Toys In addition to the design of PVC cartoon ornaments and PVC enamel, the time for heating and forming is also a significant reason. In the same set of doll molds, there are several identical holes, some of which are constantly twisted while others are easily twisted and broken. Even PVC three-dimensional dolls produced at the same hole position may sometimes twist continuously and sometimes easily break. Therefore, the time and production control of heating molding have become quite important.
In the production process, it is first necessary to ensure that the mold is heated to a sufficient temperature, and the heating molding time should be appropriately controlled to make the molten adhesive mature and have good fluidity. Otherwise, it is an unmelted glue that is enough to make the connection easily break.
As long as the product structure allows, try increasing the transition angle of the connection, preferably reaching R1.0 mm or larger, so that when the melt passes through the corner, there will be no eddy currents caused by the skin. Meanwhile, adding transition fillets can also prevent stress concentration and increase the tensile strength of the joint.
