Deformed Syringe Mould: How To Recover?


In the production of syringe moulds and products, mould […]

In the production of syringe moulds and products, mould materials often have various defects and deformations. One of the reasons for the deformation of the materials is that in order to reduce costs, the actual mould material is not a special mould steel, the rigidity of the template is insufficient, the thickness is insufficient, and the heat treatment is improper. And the residual stress, EDM stress, etc., the above reasons often interact with each other, increasing the amount of deformation. In addition to the corresponding solution during processing, widen the mould feet or use a force column at each point in the middle of the mould. Some moulds are not very demanding, and can be heated and deformed instantly at the focus position, which is quite effective. People often grind off the edges of the template to reduce the contact surface, and it is necessary to reduce the grinding depth as much as possible to facilitate the effective life of the mould. It is difficult to correct the deviation of the cavity angular dimension after the template is deformed. The over-tight core causes the cavity to be deformed by the wall. This phenomenon is particularly serious when the cavity is multi-cavity. If you use it barely, the flash in the middle of the template will not change , Especially the injection of nylon and other fluid products, should be smoothed and re-cored. When the mould is trimmed and welded in a thinner position, the amount of deformation cannot be ignored.


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