It refers to the surface of the part that can be peeled off layer by layer. Causes: (1) Mixing other incompatible polymers (2) Excessive release agent used during molding (3) resin temperature is inconsistent (4) Excessive moisture (5) The gate and the flow path have sharp angles Remedies: Material: Avoid incompatible impurities or contaminated recycled …
It means that excess plastic is present on the mold parting or ejector part. Causes: (1) Insufficient clamping force (2) The mold has defects (3) The molding conditions are unreasonable (4) Improper design of the exhaust system Remedies: Mold design: (1) Reasonably design the mold to ensure that the mold can be closed when the …
The burn marks in plastic injection molding are that the gas in the cavity cannot be removed in time, resulting in blackening at the end of the flow. Causes: (1) The air in the cavity cannot be removed in time. (2) Material degradation: overhigh melt temperature; overcast screw speed; improper design of the runner system …
Brittleness is that the plastic part is easily cracked or broken in some place Causes: (1) Dry conditions are not suitable; use excessive recycled materials (2) Injection temperature setting is wrong (3) The gate and runner system settings are not appropriate (4) The melting mark strength is not high Remedies: Material: (1) Set appropriate drying …
Air traps are where air is trapped in the cavity to create bubbles in the part during plastic injection molding. Causes: It is caused by the air being unable to escape from the parting surface, the ram, or the vent when the two melt fronts meet. Remedies: Structural design: Reduce thickness inconsistency and try to …
Short shots are a phenomenon in which the mold cavity cannot be completely filled. Plastic Injection Molding-Short ShotsCauses: (1) Die temperature, material temperature, or injection pressure and speed are too low (2) Uneven plasticization of raw materials (3) Poor exhaust (4) Insufficient liquidity of raw materials (5) The part is too thin or the gate …
The process involved many steps until a final prototype or product is fabricated. The first step in prototyping of plastic injection molded parts is design of part. In initial phase you have to determine the feasibility of product and its production and nothing to do with size of product. After working on product design now …
Injection molding is ideal for making precise silicone rubber parts from LSR. It offers parts with accurate dimensions, intricate design, and superior surface finishes. Below is a step-wise breakdown of the process. Step 1: Material PreparationLSR material is a two-part platinum-cured elastomer containing a base silicone polymer and a curing medium. These components are combined …
Liquid Silicone Rubber Molding Process: Step by Step Read More »
Different production volumes are also an essential factor in the cost of injection molding. Moreover, the production volume influences the amount of raw material used in injection molding, required machine sophistication, and injection mold properties such as durability, strength, and other properties. Here are the typical types of production volume injection molding: Low-Volume Injection Molding …
Injection Molding Cost For Different Production Volumes Read More »
Generally, the injection molding process has no fixed cost for every application. Custom injection molding cost has a varying value that ranges from thousands to hundreds of thousands. Below are common factors that impact the cost of injection molding. CNC MachiningThe CNC machining process is well-suited for making metal molds from aluminum or steel materials. …
