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Injection Mold & Molding

Intronics (Shenzhen) Technology Development Co., Ltd

Injection Molding

What Is Plastic Injection Molding?

Plastic Injection molding is a manufacturing process used to make any plastic part. Plastic injection molding can be used for anything from manufacturing a few prototype parts up to running millions of an identical parts. Plastic injection molding is ideal for making large quantities of the same part or related parts. ITTD`s provides custom plastic injection molding for customers worldwide.
If you need to quickly test out demand of the market with low-volume parts or want to get large quantities of production parts,Then you can’t go wrong with ITTD`s injection molding services. We have abundant advantages and experience in the manufacturing of high-quality prototype molds with quick turnaround.

Based on the description in the following pictures and introduction, you can gain a deeper understanding of injection molding.

Molding Process Introduce

Injection Molding Process

Processing of Engineering Thermoplastics

●Injection Molding
●Extrusion
●Compression Molding
●Thermoforming
●Blow Molding
●Secondary Operations
●Comparisons

Injection molding is an important method to produce thermoplastic products. Almost all thermoplastic products can be produced by injection molding. The basic function of injection molding machine: Heat molten plastic to make it reach a viscous flow state; Pressure is applied to the viscous plastic to shoot it into the mold cavity.

Advantages

●Fast Cycle Times
●Complex Parts
●High Volume
●Aesthetics

●High Pressure Process
●Limited Large Part Capability
●High Tooling Cost

Disadvantages

Injection Compression Molding

Molding Cycle Time Is Crucial

Optimizing molding cycle time will save time and money. The faster the cycle time, the more parts that can be produced in a certain time frame. A formula can be used to determine the cycle time of injection molding. The time it takes to make a part using injection molding is calculated as:

Cycle Time = 2M + T + C + E

Where:
(2M) = Mold
Open/Close Time x 2
(T) = Injection Time (S/F)
(C) = Cooling Time
(E) = Ejection Time (E)
(S) = Mold Size (in3)
(F) = Flow Rate (in3/min)

The time it takes to open or close the mold and eject the part can last from less than a second up to a few minutes, depending on the size of the mold and machine. The cooling time, which dominates the process, depends on the maximum thickness of the part.…

Injection molding machine specifications

Generally speaking, the injection molding machine specifications are mainly for both Clamping tonnage and shot size.
Other parameters include injection rate, injection pressure, screw design, maximum mold thickness, injection pressure. And the distance between tie bars.