Injection Molding

3 key process parameters affecting the strength of injection molded parts

1, Increasing the injection pressure can improve the tensile strength of PP injection molded parts. PP material is more elastic than other rigid plastics. Therefore, the density of injection molded parts will increase with the increase of pressure. This feature is relatively obvious. When the density of plastic parts increases, its tensile strength will naturally [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

How to control the assembly and disassembly force of injection parts by adjusting the machine

Two injection molded parts that can be assembled and disassembled are commonly known as male parts and female parts. When the injection pressure and injection time of the male part increase, or the injection pressure and injection time of the female part decrease, the outer diameter of the male part increases, the inner diameter of [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

The problems that should be noted in injection molding of transparent thick-walled plastic parts

Due to special functions, some thick-walled transparent injection parts are often encountered during injection molding. Because to performance reasons, these plastic parts use PC as the raw material, and the average wall thickness More than 6mm, the maximum wall thickness exceeds 12mm. For such plastic parts, two problems often occur during injection molding, one is [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

The solutions to the serious plastic molded parts appearance sink mark with the boss

Sometimes due to defects in mold manufacturing, the appearance shrinkage of the injection molded part at the position of the cylinder (injection pin) is difficult to solve regardless of the adjustment of the machine. Even if it is reluctantly solved, the injection molded parts are already flashing. There are two main reasons for the serious [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

The Solution for Deformation Problem of Large Flat Plastic Injection Parts

Large flat plastic parts have a large area, and the shrinkage is also large. Due to the severe molecular orientation of large plastic parts, and the uneven cooling of the mold, the shrinkage of the plastic parts in different directions appears inconsistent, which leads to the phenomenon of deformation and distortion easily after injection molding [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

Why the shrinkage problem of hard plastic parts is difficult to solve compared with soft plastic parts

Soft plastics are much more flexible than hard plastics. Therefore, the ability of soft plastics to compress and store pressure is much stronger than hard plastics. The reason for the shrinkage problem of injection molded parts is that the space left when the melt condenses and shrinks cannot be replenished by the melt. Since the [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

Two process must to know when shrinking problems are difficult to solve in produce home appliance plastic parts

1, Two temperature conditions that are not conducive to solving the shrinking problem A, The mold temperature is too high is not conducive to solving the shrinking problem The problem of shrinkage of hard plastic parts (surface shrinkage and internal shrinkage) is due to the defects caused by the shrinkage of the melt, the space [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

How to solve the shrinking problem of thick wall plastic parts-surface shrinkage

The shrinkage problems of hard plastic parts (surface shrinkage and internal shrinkage) are mostly due to defects caused by insufficient melt supplement when the thicker parts are cooled. It is often the case that increasing the pressure, increasing the gate, and extending the injection time, the shrinkage problem cannot be solved. Among the commonly used [...]
Injection Molding, Plastic Mold Case, Plastic Molding Design, Plastic Parts

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