-
PASTE PVC RESIN P450
-
Paste PVC resin PB 1156
-
RY-NL-38-1
-
Factory directly supply good price rectangle square disposable paper dishes round oval plates
-
Guibao Brand Calcium Carbonate 400mesh
-
Cellulose Ether 2500
-
Direct wholesale good quality biodegradable cornstarch spoon knife and fork plastic cutlery
Q
how to avoid weld lines in injection molding
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Weld lines in injection molding occur when two or more flow fronts meet and do not properly unite, often resulting in aesthetically displeasing and structurally weaker areas. To minimize these imperfections, consider the following strategies: 1. Optimize the mold design by adjusting the gate locations to ensure a more uniform flow of plastic, aiming to have the fronts meet at less critical areas of the part. 2. Increase the temperature of the mold and the molten plastic. A higher temperature can improve the flow and give the material more time to merge seamlessly. 3. Adjust the injection speed; a slower injection speed can sometimes allow for better merging of the flow fronts, although this needs to be balanced against the potential for premature cooling. 4. Utilize materials with better flow properties if design changes are not feasible. Some materials are more prone to forming weld lines than others, so selecting an alternative with a lower viscosity can help. 5. Consider adding mold release agents or a slight texture to the mold in the area where weld lines are problematic, which can sometimes hide or minimize the appearance of weld lines. By comprehensively addressing weld lines through careful design and process optimization, the quality and integrity of injection molded parts can be significantly improved.
You May Like
You May Like
Q&A
- •what do clogged inkjet print heads look like
- •does zircon turn green
- •most common engine oil grade
- •how to loosen screen printing ink
- •what is denure in yarn
Popular Information
- •Specialty chemicals Price trends in March 2022: ICICI Securities
- •Rubber and Plastics: Prediction on LLDPE’s Ups And Downs On December 18
- •We will be giving a better dividend payout this year: TK Chand, NALCO
- •INEOS Inovyn supports Daimler Truck AG to trial Europe’s first heavy duty liquid hydrogen truck.
- •The Sharp Rise of PE Futures Drives the Spot Market Soaring