Compared with the single-part type surface injection mold, the double-split surface injection mold adds a partially movable intermediate plate in the fixed mold part (again It is called the active gate plate, which is provided with gates, runners and other parts and components needed for the fixed mold.

A single-cavity or multi-cavity injection mold for mouth feeding.

The double-part molding mold has a complicated structure, high manufacturing cost, and difficult processing of parts, and is generally not used for molding large or extra large plastic products.Injection Molding with Lateral Partitioning and Core Pulling Mechanisms When the plastic part has side holes or undercuts, it is necessary to form a core or slider that can be moved laterally.

After injection molding, the movable mold is first moved downward by a distance, and then the inclined section of the bending pin fixed on the fixed template forces the slider to move outward, and at the same time, the push rod of the demolding mechanism pushes the pusher plate to make the plastic part self-shaped.

When automatic demoulding is required, a rotatable thread core or ring can be placed on the mold, using the mold opening action or the rotating mechanism of the injection molding machine, or setting a special The transmission drives the threaded core or the threaded ring to rotate, thereby releasing the plastic part.No-flow injection mold No-flow injection mold refers to the method of adiabatic heating by using the opposite flow channel, keeping the plastic between the cavity of the injection molding machine nozzle molten, so that there is no pouring system condensate when the mold is taken out.

The former is called the adiabatic flow channel injection mold, and the latter is called the hot runner injection mold.Right-angle injection molds.Right-angle injection molds are only suitable for angle injection molding machines.

The quality of the hot work of the mold has a great influence on the performance and service life of the mold.The quenching deformation and cracking of the working parts of the mold, and the early fracture of the working process are all related to the hot working process of the tool.Huangyan Haohao Plastic Mould own well-equipped testing equipment and strong technical in plastic mould manufacturing(1) Forging process, which is an important part in the manufacturing process of mold working parts.

For molds of high alloy tool steels, technical requirements are often imposed on metallographic structures such as material carbide distribution.

In addition, the forging temperature range should be strictly controlled, the correct heating specification should be established, the correct forging force method should be used, and the post-forging slow cooling or timely annealing should be carried out.

Pre-heat treatment processes such as annealing, normalizing or quenching and tempering should be used depending on the materials and requirements of the mold working parts to improve the structure, eliminate the structural defects of the forged blank, and improve the processing technology.

The high-carbon alloy die steel can eliminate the reticulated secondary cementite or chain carbide after appropriate preliminary heat treatment, so that the carbide is spheroidized and refined, and the uniformity of carbide distribution is promoted.

If the superheat occurs during quenching, not only will the workpiece cause greater brittleness, but also cause deformation and cracking during cooling, which seriously affects the life of the mold.