Core turntable type (turntable mold core): Utilizing a rotatable mold core to perform two-stage injection molding on a fixed male mold, this process is simple and easy to operate, suitable for small to medium-sized batches of production. Core-pulling mold design: The material switching is achieved through internal sliders or core-pulling mechanisms within the mold, commonly …
First shot (substrate molding): Using the first injection unit of a two-shot injection molding machine, melt rigid engineering plastics (such as PC, ABS, or PP) and inject them into the first mold cavity to form the substrate part of the product. Mold core rotation or mold switching: After the first shot, the male mold separates …
As industrial manufacturing upgrades towards high precision and intelligence, insert molding technology is also constantly innovating. On the one hand, multi-material and multi-insert composite molding has become mainstream, enabling the one-shot molding of complex products containing multiple different types of inserts. On the other hand, the application of smart inserts is becoming increasingly widespread, embedding …
Positioning accuracy: The positioning error of the insert must be controlled at the micrometer level, otherwise it will lead to poor assembly or failure of bonding of the product. Common positioning methods include mechanical positioning, vacuum adsorption positioning, etc. Material compatibility: It is necessary to match the thermal expansion coefficients of the plastic and the …
Technical key points and advantages of insert molding Read More »
The material and structure of the insert molding need to be selected according to the functional requirements of the product, and different types of inserts correspond to different application scenarios: Metal insert molding: Primarily made of copper, steel, aluminum, and other materials, common forms include threaded studs, nuts, and shaft sleeves. They are used to …
Common types of insert molding and applicable scenarios Read More »
The process of insert molding requires strict control over the precision of each step to avoid issues such as poor bonding and product defects. The core steps are as follows: Insert pretreatment: Clean, degrease, and perform rust prevention treatment on the inserts. Some metal inserts require surface roughening or electroplating treatment to enhance their bonding …
The essence of insert molding lies in the “precise combination of heterogeneous materials”, with the core logic revolving around three key steps: “positioning – cladding – bonding”. The insert needs to be fixed by the positioning mechanism inside the mold to ensure no displacement or tilt during the injection molding process, providing a precise benchmark …
Medical-grade silicone offers several benefits that cater to the challenges of complex designs in medical devices:
Material cuttingCut the rolled film into square blocks of the designed size for subsequent printing and molding processes. The precision and dimensions of the cutting are crucial for the smooth progress of subsequent processes; Offset printingCreate a film screen based on the required icons and text, and print on the cut square film blocks. During …
The process flow of IML (In-Mold-Labeling) technology Read More »
Injection molding Cycle time refers to how quickly a tool can make one part. Injection molding Manufacturers often coat tools to improve speed and durability. Coating Type Benefits Chrome/Nickel Plating Corrosion resistance, moderate hardness PVD (Physical Vapor Deposition) High hardness, wear resistance CVD (Chemical Vapor Deposition) Strong bonding, better for higher temps Use coatings when …
Injection molding Cycle Time and Tooling Longevity Read More »
