Friday, 19 December 2014

Key Advantages Of Hot Runner Molds In Injection Molding

There are array of benefits of using hot runner molds in comparison with cold runner molds in molding technology. When designed correctly and used effectively, Hot Runner System facilitate injection molding through cost effective measures enhancing productivity. The many advantages of a hot runner mold are listed below:

1. Money and resource saving

Not using cold runner system is money saving in many ways:

  • Zero wastage of plastic material
  • no need to pay someone to make regrind
  • no sprue picker robot required
  • faster cycle time for increased productivity levels

2. Manufacturing advantage

A hot runner makes it more easygoing for a molding machine to inject plastic into a mould cavity. The runner accelerates the capability of a molding machine, thereby reducing the plastic flow length. This helps molder save material by making thinner and lighter parts.

3. Short Product Cycle time

Since there is no runner to eject the casting, a shorter opening stroke can be used that save cycle time in totality. Injection fill times are shorter as the plastic flow length is shorter this also saves cycle time. For high cavitations moulds runners need to be thick and cold runners will need a long cooling time before being solid enough to eject from a mold.

4. Mold Makers Can Make Hot Runners

Pet Preform Injection mould makers are capable of making their own hot runners. The advantage is that one company can take full charge of the entire mold and it reduces the hot runner price. To make a hot runner requires standard tool making equipment such as a radial drill, CNC machining center, a surface grinder, a cylindrical grinder and a CNC lathe.

5. Other Benefits of hot runner

  • Available for both single cavity and multi cavity molds
  • can be used with most plastic materials and part designs
  • easy maintenance
  • reduction in number of moving plates in a mold
  • lends good gate vestige
  • can be used with close pitch mold designs

Wednesday, 5 November 2014

Ways To Carry Out Trouble-Free Injection Molding

The fluid expertise is not a necessary attribute on the part of design engineers when it comes to injection molding. The major PET moulds manufacturer India succumbs to some guidelines that help increasing the efficiency of injection molding process.  
1. Maintaining thickness of the walls

The parts of the plastic must have even heaviness around the edges. The engineer should be aware of the fluid dynamics in this respect. To have a specific design parameter helps averting various manufacturing defects of mold making. Even the minutest abnormality may cause grave quality errors.

2. Judiciously choosing the radius of the corners

During the injection molding process, the molten plastics gel through a lot of turns and edges. The well-rounded corners help in regulating the flow of the plastic. Hence, the design engineers should pay attention to generously adopting the corner size of the mold. On the opposite, sharp edges elongate the cooling process which is a hindrance to effective manufacturing and delivery.

3. Ascertain the fluid dynamics

Plastic, being an absolute fluid calls for a clear understanding about the dynamics of the fluid management (flow dynamics). Such intense research helps eliminating common errors associated with injection molding. The process of injection molding precisely depends upon the molding of the plastic pet molds. The engineers should reduce alteration in plastic velocities, pressure and viscosities especially when the molding process is underway.  

4. Strategic gate location

Managing the thickness of the mold walls is not always easy to achieve. Under such scenario an adequate gate location solves the purpose. In the absence of ideal gate location manufacturing uniform molds becomes an uphill task. The best of the gate locations is one wherein, the mold enters the broadest part of the cavity and then seeps down to the narrower areas effortlessly.  

All the afore-mentioned tips should be kept in mind to ensure smooth injection molding process on the part of the manufactures.

Monday, 15 September 2014

How Moldmakers Are Profited By PET Preform Mold Technique?

An introduction

Let us give you a fact: A cost-effective, flexible PET system – that has low cavitation PET preform molds – brings down (mold) changeover time as well as conversion costs. Many leading PET Preform Dies Manufacturers produce the finest collection of molds that is used by bottle manufacturers. Such type of molds helps in carrying out the overall product manufacturing task within minimal downtime. Further, PET Preform molds in New Delhi help in making a variety of preforms having different-sized applications, but similar neck finishes.

How a high-quality PET preform mold helps in making customers satisfied?

A few main benefits of using such types of molds are mentioned below. Read on...
  • Reduced cycle time
  • Flexibility of operations
  • Minimal cost incurred while carrying out conversion tasks
  • The mold is very convenient to use
Such benefits chip in to build unparalleled customer satisfaction for many moldmakers.

A few important benefits of using PET Preform

PET preform system’s modular design offers innumerable benefits while the conversion process is underway. The mold’s unique built and design reduce the conversion time considerably.  The unique design of such a mold eliminates the requirement to cool and re-heat (during part changeover). The time taken to switch a mold is reduced thrice when compared with a conventional mold.  Another reason for

Such molds can easily accommodate any type of preform length. By easily accommodating any preform length, the mold’s requirement to replace components is reduced dramatically.


 Other advantages of installing PET preform mold

Such a mold, by and large, has:-
  • A specific section meant for cavity
  • Cavity lock stack design
  • Adjustable ejection rams
The PET preform molds have been manufactured by almost every leading moldmaker. Such molds have been designed using the latest technologies and are priced a little higher than the conventional ones.

Monday, 14 July 2014

What Does The Future Of Medical Mold Making Hold?

Making accurate predictions of the future of medical mold making is a pipe dream. Every mold making company and industry specialist work laboriously to unearth some of the most probable trends in medical moldmaking. Several researchers, innovators as well as mold manufacturers are leaving no stone unturned to introduce fresh molding techniques. Manufacturers and mold designers buckle down to tackle the rising demands of health care sector by introducing high-quality molds as well as inserts.

A few important things for a medical moldmaker

Fast cycle times and high throughputs are two of the prominent expectations of each and every client from a mold. Every client wants to have the best quality in no time. The best medical mold is the one that has impeccable accuracy: The idea of accuracy comprises cavity-to-cavity tolerances as well as dimension-to-dimension accuracies.

At present, the trends dictate that moldmakers should prepare high-cavitation dies and molds. In addition, many manufacturers face challenges of designing high-cavitation molds that fit the same equipment of clients. The clients frown when moldmakers propose ideas of investing in new equipment only because the mold’s cavitation got altered.

A few fresh trends in medical moldmaking

Twenty years ago, most noteworthy Medical Original Equipment Manufacturers (OEMs) bailed out of the business of molding. The decision was taken by the OEMs because they thought that medical molding was not at all productive. As the time passed by, the entire sector of medical molding witnessed some commendable changes. When the molding business developed, advanced molds had to be outsourced due to unavailability of key OEMs. The outsourcing disturbed the budgets of many Medical OEMs. All this forced OEMs to again participate in molding. Most OEMs, at present, manufacture PET perform Molds specially designed for the health care sector. Last, every moldmaker should focus on quality as well as accuracy.