surfaces of moldings, and advantages of Nucleation: faster mold set-up, reduced warpage and sink marks, freedom from stress whitening, improved tensiles and stiffness. PRM-35ARN typical...
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| GAIN Technologies - The Process GAIN The Process The GAIN process can create large or intricate parts with no "molded-in" stress or sink marks. 1. The process begins when a "short shot" of thermoplastic is...
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| Engineering Plastics Design Guidelines Bosses risk of sink marks. Greater wall sections for increased strength will increase molded-in stresses and result in sink marks. A minimum radius of 25% the nominal wall thickness or...
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| Uniform wall thickness the mold surface) toward the inside. In thick sections this results in inward pulling stresses (due to contraction) that can cause sink marks in the outer surfaces of the part....
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| BPR: News - Archive Article from SAS Automation cuts difficult brittle materials like acrylic, and also prevents stress marks from the cutting process. Each heated cutter set includes a heated blade,...
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| EPPM Magazine Improved Surface Quality RETURN TO MOST RECENT NEWS Improved Surface Quality Vol 7 No 9 (9 7) Visible flow lines, stress crazing and other marks left behind by the injection moulding process used to be a...
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| [pdf] Design* for part failures. Maintaining uniform wall thickness is essential in keeping sink marks, voids, warpage and more importantly areas of molded-in stresses to minimum....
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| Seals and Gaskets - Manufacturer moisture, dust, dirt, etc. * No holes to drill or screws to cause cracking, corrosion and stress marks. * No rivets or heads to detract from product appearance. The bonding surface...
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| GE Plastics - Glossary Pack Screw Secant Modulus Section Modulus Shear Modulus Shear Rate Shear Strength Shear Stress Shear Thinning Sheet Shore Short Shot Shot Shrinkage Shrinkage Allowance Shut-Off...
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