Plastic injection mold is the foundation of the success of  custom plastic part and we mainly discuss the design basics  you need to know when developing your plastic project in this series of articles. Designing plastic injection mold for manufacturability is the first step in making a high-quality part. Before start, we need to understand what is the standard of a well-designed mold.  The basic function of a mold is two fold. Firstly it should impart shape to the part secondly it should cool the molded part. The number of cavities mainly depends up on the production volume requirement. But it is also related to the size and weight of the parts which in turn determines the machine capacity required. It is also important to design a mold that will safely absorb the forces of clamping, injection and ejection. Further more the mold lay out should be balanced which will ensure proper filling and…

What is fan gate? Fat gate, namely ,the shape of the gate looks like a fan.Fan gate is usually used on multi-cavity molds or two-plate molds. It is a common edge gate located located in the sidewalll of the part to prevent restriction of resin flow. Since the gate could distribute melt resin into the cavity more evenly, thus it is normally applicable to parts that require a high degree of flatness and absence of flow lines. It also minimizes the possibility of part warpage and helps to maintain dimensional stability.     From above pictures we could see that the fan gate has shortcomings as well. Since the gate is too wide and it may increase labor cost  to degate after molding. Besides the gate is long leaving visible trimming mark, it may affect cosmetic look as well. And there is high potentiality for air entrapment if not carefully…

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.              

What is soft tooling? Soft tooling, or prototype mold is preferred when we need injection molded parts quickly or at a lower cost.  It is also great choice for low volumes. We can use soft steel such as NAK80 or  aluminum to build the soft mold in house. Once the mold has been completed,  we can make your parts in-house using our ton injection molding machine ranging from 50Ton to 650Ton.  The soft tooling is featured as below.   The tooling inserts are made using 718 HH or Nak 80, (preharden 33 to 38 HRC). Inserts can be drilled, milledand grindedusing normal process of machining. The tool life is guarantee up to 500 K shotwhile aluminium mold up to 10K shots. The lead time is shorter compare to hard tool. For Proto Tool or toolingwith low volume requirement. What is hard tooling? Hard tool is production tooling that requires high quality . The core and cavity is usually made of the…

When injection moulding partially crystalline engineering thermoplastics, choice of the correct hot runner system determines the function of the plastic injection mould and moulded part quality. Here, the temperature must be controlled much more strictly than in the case of amorphous materials. The type of hot runner system used,  and its installation, decide the properties of the finished parts. This article deals with the most important points which have to be considered when choosing the most suitable hot runner system for POM (acetal), PA (nylon), PBT and PET (polyesters). Problems with hot runners Moisture in thegranules Feed system toosmall Wrong gateposition Hold time tooshort Wrong melttemperature Wrong tooltemperature Poor surfacefinish Problems with hotrunners Warpage Moulddeposit   What happens when an unsuitable hot runner system is used? Unsuitable hot runner systems usually cause high pressure losses; they should, if used at all, be operated only at very high temperatures. This will usually cause the polymer to degrade, with…

What is Acrylic Injection Molding? PMMA, also known as Acrylic or organic galss, is widely used in Plastic Injection Molding process. It is an environment friendly and 100% recyclable material. The clear thermoplastic homopolymer is often used as a more resistant alternative to glass. Acrylic is the most common type of clear, moldable plastic available to the general public, and it can be used from anything to windows and picture frames to fake nails and paint. In vehicles, PMMA sheets are used in windows of cars, interior and exterior panels, motorcycle windshields, instrument covers, spoilers, fenders, and other ancillaries.It facilitates the benefit of design customization for car manufacturers, owing to its exceptional formability, pleasant acoustic properties, and excellent surface hardness. The automotive industry has been witnessing growth, in terms of, both, investments and production, especially in countries in the Asia-Pacific region, such as India, Indonesia, Malaysia, and Thailand.Moreover, regions, such as North America and Europe,…

Injection molding makes possible mass production of intricate, high performance, tight tolerance parts with very little secondary labor and minimal waste. It is defined as a process of shaping plastic by melting it and injecting it into a predesigned mold. As known, plastic injection molding has a bevy of advantages and benefits over comparative plastic processing and manufacturing methods. Here’s a look at the top 11 benefits of plastic injection molding.   1.High production rate There is a reason why plastic injection molding is one of the – if not the most common – technologies for long manufacturing runs: it’s fast. How fast? While the speed depends on the complexity of the mold itself, generally only about 15 to 30 seconds pass between cycle times. 2.Large Volume production The initial creation of a mold can be expensive, with the cost being a few thousand dollars.   But once the mold is built you can…

Product name Plastic motorcycle accessories Product Material PC Injection molding machine 480T Process Injection molding Runner Cold sprue Cavity 1X1 This is a cold sprue injection mold for auto parts and the material plastic is PMMA. AND No black spots on the surface and no blinster！ 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…

Product name Custom switch box Product Material ABS+PC Injection molding machine 160T Process Injection molding Runner Cold sprue Cavity 1X2 This is a cold sprue injection mold for custom switch box and the material plastic is ABS+PC.No flash on the surface, and the product assembly effect is very nice！details make a difference！ 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…

Product name PMMA women’s ashtray Product Material PMMA Injection molding machine 160T Process Injection molding Runner Cold sprue Cavity 1X1 This is a cold sprue injection mold for auto parts and the material plastic is PMMA. 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 requirements