• Why we need Prototype?

    Prototyping is an important step in the process of New Product Development. Prototypes can be inexpensively prepared by CNC machining stock shapes, by thermo-forming them from sheet stock, or simple injection molding tools can be made from soft steel or aluminum. In addition to providing a three dimensional presentation of the design, a prototype allows: Subjecting the part to the chemical and mechanical environment it will endure in real life Accelerated testing for part life Checking compatibility with anticipated secondary assembly operations How to protoype? Prototype molds may be simple or complex, steel or aluminum. Injection molded prototypes from molds that have cooling channels can supply cycle time estimates and guidelines for commercial tooling. Determination of shrinkage factors, optimum gate sizes, vent locations and effect of mold temperature should also be established. Molded prototypes are preferred because flow orientation may influence performance. The latter is particularly important in glass-filled compositions.HS Mold excels in…

    Mold making January 26, 2020
  • Part design guidelines on double injection molding

    In this article, we will show you from three aspects to be taken into consideration when designing plastic parts for double injection molding so we can save our customers time and money in the long run.   Mechanical structure     Surface Contact Adhesion is depending on materials compatibility, process temperatures, surface contact area, molding sequence and designing of mechanical interlock systems. If design not allows enough contact surface area, Tooling can make up like Make-up 1 : Increase expose surface byincreasingroughness. Make-up 2 : Employ interlock Wall Thickness Utilize 2nd shot to get more uniform wallthickness  Reinforce the 1st  and 2nd shot(transparent) by structure design such as “H” section etc. Thin but high rib in 2nd short. First shot thicker than 2nd shot. 2nd shot should be as thin as possiblewhen flow and weld line is not a issue. In MP case, 1st shot 0.6mm, 2nd shot 0.6mm was made Avoid sharpcorner Make…

    Mold design January 10, 2020
  • How to Troubleshoot Flash Defect on Two Shot Injection Molding 

    What is flash in two shot injection molding? Description  2nd material penetrating between 1st material and its cavity. It is observed frequently where 1st material shrinkage is big and cooling time for 1  material is too long. It is mainly due to too fast shrinking of 1st material.   How to trouble shoot the flash? 1.Optimizing holding pressure & Cooling time to get min shrinking of 1st material till before 2nd shot molding. 2.Select less shrinkage rate material for 1st shot. 3.Changing design as preventive action. We’ve spent the past 15 years accumulating rich practical experience in solving the flash of two-shot injection molding. HS Mold has the design, engineering, and in-house tooling capabilities you need to streamline your project 2k injection molding project from conception to production.              

    Injection molding process January 3, 2020
  • Custom auto parts

    Product name Customer-specific parts Product Material PA66+30%GF Product Type Customer-specific parts Process Injection molding Runner COLD sprue Cavity 1X2 This is a cold sprue injection mold for auto parts and the material plastic is PA66+30%GF.And mold test video link:https://youtu.be/EtTf4GmJp9o   Our factory is equipped with various size of injection machine ranging in tonnage from 55 tons to 610 tons and shot capacities ranging from 1.3 oz to 80 oz. We can meet any of your custom injection molding needs using different types of plastics including ABS, PC, PP, Nylong and so on. We produce custom injection molded finished products and parts for direct shipment to oversea end customers  We produce standard and custom plastic products for various industries including Automotive, House hold application, Medical and more. Since 2005, HS Mold has specialized in custom, high-volume plastic injection molding. Our team are committed to the success of your project and works hard to meet or exceed the project’s…

    plastic products December 24, 2019
  • What is two shot injection molding?

    Two shot injection Molding, also called over-molding multi- component or 2K Injection molding, employs separate injection points for each material in a sequential process. After initial portion material or component is molded, the core half of the mold holding the part is rotated to another, cavity where a second resin is injected.  Below is a simple diagram to illustrate theory of twin shot injection molding.     There are 3 types of two shot injection molding.   Co-Injection Molding: Sequential injection into the same core / One material as the skin , one as the core of the products. Materials can be from the same type and/or be different internal /core.     Multi-Color Injection Molding: Part are same plastic material but usually different Material bond each other, but clearly separated.     § Multi-Material Injection Molding: Partmade of different plastic materials. Materialbond but usually clearly separated. Twin shop injection molding is easy to understand, but it’s…

    Mold making December 21, 2019
  • Things you need to know about Overmolding

    Overmolding injection process is used in many areas to create finished plastic parts and improve product efficiency. Without the process of,we would not have so many consumer  products that everyone wants and needs. Examples of overmolded products would be packing products,cell phones, toothbrush, computer monitors. So how exactly does the overmolding process work and what kind of defects we may see?     What is overmolding?     Overmolding is also called as  two-shot molding, results in parts in which it is clearly evident that more than one material is being used. It is a kind of injection molding process where only part of a product is molded in one material, and that molded piece is manipulated so the second material can be molded around, over, under, or through it to complete the final part. This method is sometimes referred to as in-mold assembly, since the resulting part effectively acts as an assembly of two materials…

    Uncategorized December 17, 2019
  • Custom auto part fiberglass

    Product name Custom auto part fiberglass Product Material PA+30%GF Product Type Automotive part Process Injection molding Runner Cold sprue Cavity 1X2 This is a cold sprue injection mold for auto parts and the material plastic is   PPA+30%GF。During the mold test, two issus come up. Issue: Too much fiber glass on the part surface Remedy: A.Increase shooting speed   B.Increase injection pressure       Issue: Poor venting and there is air trap on part surface Remedy: Increase mold temperature (tentative measures) Increase shoot temperature(temtavie measures) Improve mold venting (effective solution)     Our factory is equipped with various size of injection machine ranging in tonnage from 55 tons to 610 tons and shot capacities ranging from 1.3 oz to 80 oz. We can meet any of your custom injection molding needs using different types of plastics including ABS, PC, PP, Nylong and so on. We produce custom injection molded finished products and parts for direct shipment to…

    plastic products December 11, 2019
  • plastic housing for instrument

    plastic housing for instrument ABS over TPU overmolding is an excellent choice to improve Aesthetics and product branding.This is a plastic injection molding process that uses a mechanical or chemical bond to permanently marry two parts together. Here at HS Mold, we have have significant in-house injection molding experience. Our factory is equipped with various size of injection machine ranging in tonnage from 55 tons to 610 tons and shot capacities ranging from 1.3 oz to 80 oz. We can meet any of your custom injection molding needs using different types of plastics including ABS, PC, PP, Nylong and so on. We produce custom injection molded finished products and parts for direct shipment to oversea end customers  We produce standard and custom plastic products for various industries including Automotive, House hold application, Medical and more. Overmolding injection process helps to tackle assembly hassles, simply product design, and can improve the…

    plastic products December 10, 2019
  • Everything you need to know about Insert mold  

    What is injection molding process? INSERT MOLDING is a type of injection molding. It is the process of molding thermoplastic material around an metal part to create a finished part that incorporates multiple materials.   The inserts for INSERT Moulds are typically metal stamping or thread parts.   The inserts are most commonly made of metal, typically brass, aluminum or stainless steel.  Threaded inserts are readily available in a number of standard sizes.  Bushings, sleeves and other simple metal forms are also used. Before injection molding, the inserts are placed on a fixed position in the mold and thermoplastics is injected into the mold to form the part. Most moldable thermoplastic resins are compatible with the insert molding process. This kind of products are usually used as structural parts in product development, and the strength requirements of the products are higher, so plastic material containing glass fiber (GF) is often chosen, and the content of GF in…

    Mold design, Mold making December 9, 2019
  • Plastic housing for Fingerprint collector

    Mould type overmold Product Material PC+TPE Product Name Plastic housing for Fingerprint collector Manufacturing process overmolding Runner Cold sprue Color Customized   This is a overmolding plastic part with substrate as PC and the injection overmold is composed of TPE which is softer and more flexible. Overmolding is a great injection molding process that connects two separate parts together to save assembly, to provide color contrasts, or to seal an area or to hide known blemishes (such as parting lines) in the substrate. Here at HS Mold, we have have significant in-house injection molding experience. Our factory is equipped with various size of injection machine ranging in tonnage from 55 tons to 610 tons and shot capacities ranging from 1.3 oz to 80 oz. We can meet any of your custom injection molding needs using different types of plastics including ABS, PC, PP, Nylong and so on. We produce custom injection molded finished products and parts for direct shipment to oversea end customers  We produce standard and…

    Uncategorized December 6, 2019
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