The Cause Of Swelling Or Bubbling In Injection Molded Products
Some plastic parts quickly swell or swell on the back of the metal insert or in a particularly thick part after the mold is demolded. This is because the plastic that is not completely cooled and hardened is caused by the release of gas under the action of the pulsation.
The solution:
(1) Effective cooling. Reduce the mold temperature, extend the mold opening time, and reduce the drying and processing temperature of the material.
(2) Reduce the filling speed, reduce the forming cycle, and reduce the flow resistance.
(3) Increase the pressure and time of holding pressure.
(4) Improve the condition that the wall surface of the workpiece is too thick or the thickness changes greatly.
Related Products
This is custom heading elementDescriptionFeedbackDescription Specification: Part Name Customized Rubber Compression Silicone Cover for Bluetooth Horn Speaker Service OEM OR ODM Part Material Silicone or rubber (NR, NBR,SBR,BR,IR,CR,EPDM,IIR,VITON(FKM),SIR,PU,ACM,CO,etc) Material Hardness Silicone about 5~90 Shore A; rubber about 10~90 Shore A Size Customized Shape Customized Color Customized according to Pantone colors Appearance as customer’s requirement Drawings 2D OR 3D acceptable Temperature Resistance -40~300 degree centigrade Technology Hot pressing molding or injection Molding Second Processing Vulcanizing/ Deburring/Silk-screen/Carving/printing Quality control internal QC control Part Feature 1.Oxidation , Chemical,oil, acid ,alkali , weather resistance 2. colorful ,Anti-aging,good flexibility, good elasticity Food grade material FDA or LFGB Package Normally PE bag+carton or customized as customer’s request Trade Term Ex-works; FOB Shenzhen/Guangzhou ; CIF Specification ROHS Directive Compliant Green Products What is our advantage? 1. Has sound and mature supporting supply chain 2. Lower mold costs…
Stamped Anchor Frame for Door ComponentsDescriptionFeedbackDescription Stamped computer housing made as clients’ drawing Die type: Progressive die. Raw materials: DC zinc coated, S/S, cold steel, copper, brass, aluminum, all variant raw material available. Surface finish: Powder coating Tooling lifespan: 1 million Feeding machine and stamping machine are used We have our own maintenance team…
Customizing Car Dashboard Covers With Injection MoldDescriptionFeedbackDescription Cavity/Core Material 718H, P20, NAK80, 2316,2738,Din2344,H13 and available Product Material ABS, PC, PP, PVC, POM, PMMA, PS, PE, PET, Rubber, Silicone, PA, PBT, PEI, etc. Base (HASCO) German , FUTABA Japan, DME US, LKM China or by requested Structure Double color injection mould, Solid…
Customizing Car Dashboard Covers With Injection MoldDescriptionFeedbackDescription TV Shell Injection Molding Product Name Injection Molding for TV Case Cover Material ABS, PC, PP, PS, POM, PMMA etc. Mould Base Material: LKM, FUTA, HASCO, DME, etc. or as per customer’s requirement. Surface treatment powder coating, polishing, chrome plating Packing Inner-Plastic Bag; Outer -Standard Carton Box. Usage…
Customizing Car Dashboard Covers With Injection MoldDescriptionFeedbackDescription Scale Model Cars Many miniature vehicles were originally aimed at children as playthings. But Precision-detailed miniatures made specifically for adults are a significant part of the market now. Fit Precision Mold Co., Ltd is specialized in producing all kinds of plastic scale model cars and accessories in different…
This is custom heading elementDescriptionFeedbackDescription Product Design Begin with good design FPM has the unique ability to contribute value at every phase of your product development via our global technical expertise. With state of the art design services, the right tools and a full staff of experienced people on hand, FPM can help…
Customizing Car Dashboard Covers With Injection MoldDescriptionFeedbackDescription CNC Plastic Machining Prototype Services Rapid prototyping (RP) technology is an advanced manufacturing technology developed in 90s, is one of the key technologies for the development of new products and manufacturing enterprises, to promote product innovation, shorten the development cycle of new products, improve product competitiveness has a…
Customizing Car Dashboard Covers With Injection MoldDescriptionFeedbackDescription FIT PRECISION MOLD CO., LTD specializes in providing good design and high-precision products at product developing and producing area. Our professional staff are experienced at tool/mold making service including plastic injection mold (mould),die casting mold (mould) and metal stamping mold (die); At the same time we are involved…