Silver wire is a silver white stripe formed by low molecular volatiles, water vapor and other gases on the surface of injection molded parts.
Cause:
1. Raw materials are wet and contain too much water
2. Residual moisture in mold cavity
3. There are residual lubricating oil and mold release agent in the mold cavity.
4. Foreign matters mixed in during batching
5. The wall thickness of plastic parts is uneven. When the molten material flows from the thin wall to the thick wall, it expands, the volatiles vaporize and contact with the mold surface to form silver wire
terms of settlement:
1. Dry the raw materials to make them fully dry
2. Dry the inner wall of the mold to keep the mold dry
3. Correct and reasonable use of mold release agent
4. Strictly manage the materials and ensure the purity of the materials when batching.
5. Improve mold design structure and injection molding process.
About PTJMould Industrial Company Limited
PTJmould is a China mold maker of plastic molds- injection mold, die casting moulds, plastic blow molding, rotational molding, medical plastic injection molding, two shot plastic injection molding, insert molding, overmolding, metal injection molding, micro injection molding, powder injection molding, ceramic injection molding, liquid injection molding, husky injection molding, household mold, casting mold, die mold tool, custom molds, china moulds, rapid prototyping tooling, plastic prototyping tooling, punch press tooling, die and tooling for mobile/ cell phone parts, automotive parts, vacuum cleaners, rechargeable tools, telephones, copiers, computers, multimedia speakers, and many other electronic products and household appliances. And also a plastic product manufacturer, mold manufacturer China– plastic parts, plastic water tank, plastic balls, plastic containers, plastic buckle, plastic anchor, plastic hanger, plastic spoon, plastic pipe fitting, plastic tumble, plastic tableware, plastic cups, plastic bottles, plastic tray, plastic cosmetic container, plastic case, plastic food container, plastic chairs, plastic caps, plastic cap closure, plastic tubes, plastic water pipes, plastic knobs, plastic tubing, plastic utility boxes, plastic racks and so on.
Link to this article：Silver wire of common problems in injection molding
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