How to prevent stripe defects in precision injection molding?

As we all know, the stripe defect in mold is a very serious matter, it will directly affect the accuracy of injection molding, and will also lead to product scrap, so we must pay attention to. So, how can we avoid this defect?

Proper design, careful processing, reasonable mold repair and timely nitriding are the key measures to prevent the occurrence of stripe defects in precision injection molding.

It should be processed in strict accordance with the requirements of the drawing, especially pay attention to improve the surface luminosity of the shunt hole and the shape of the die bridge is dripping, improve the solid metal flow state, reduce the heat of friction; For the injection mold extrusion producing tissue stripes, mold repairman should go to the site to understand the injection mold discharge, determine the correct mold repair program; Mold repairman personally observed the profile material instantaneous state is better than observing the profile material head to determine the effect of mold repair program is much better; The product is nitrated in time as required to ensure a reasonable flow state of solid metal.

Precision injection molding processing should have a proper design, reasonable layout of the tap hole, the reasonable work zone length, and the length of the transition change, drop shape mould bridge, the reasonable weld Angle, make the solder point fall in the weld chamber of the plane, in the protection of the mold core head stiffness, strength, deepen the depth of the weld chamber or enlarge the sectional area of welded room, need to adopt “sunken bridge”, is the basis of preventing stripe defect.

About JasonMould Industrial Company Limited

Jasonmould 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.

Person: James Yuan
Company: JasonMould Industrial Company Limited
Add:  LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China
Tel: 86-752-6682869
Email: [email protected]



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