Deburring Nylon & Delrin

Last week, we exhibited at the Eastec 2009 Tradeshow at the Big “E” Fairgrounds in West Springfield, MA. We met many new people who have burr issues with materials ranging from plastics to aerospace alloys. Although many of these people and their companies try to remove burrs while machining; they still find themselves with some sort of burr issue. While a significant portion of these burr issues were with metals; there were two other materials that kept being mentioned. Nylon and Delrin were two materials that had workers seeking a new solution for removing burrs.

Nylon and Delrin were problematic in terms of machining, but also with molding. Many molders had flash issues while molding these two types of materials. While we would all love to use an alternative material and just forget our burr and flash issues; it’s not that simple. Customers’ needs must be met and fulfilled. The bottom line is that they choose the material. Unfortunately, sometimes it’s Nylon or Delrin.

Many of the people we spoke with at the show are using hand deburring and deflashing. They do it because it keeps operations in-house and is relatively cheap. But, they all agree on two things. First, hand deburring lacks consistency across each part that is deburred. Second, although hand deburring is cheap it can be time consuming. It seems that most manufacturers dislike using Nylon and Delrin due to the residual burrs and flash it creates. When this work is done by hand, it is not unusual to see more burrs created.

Do I have a solution for manufacturers with Nylon and Delrin burr and flash issues? Yes, I do. Our company cannot accommodate every single part that comes through the door; due to size and other restrictions. But, we have had a strong track record deburring and deflashing these two materials. There are many advantages to outsourcing deburring and deflashing for materials like Nylon and Delrin. First, burrs and flash will be removed consistently amongst your parts. No gouges or chips in places that render parts unusable. Second, we will run your parts within two days of receipt. Your parts won’t sit in our facility for two weeks before we run them. Third, all those employees doing hand deburring can be re-assigned to other projects. Fourth, with prices per part as low as $0.02 each; how can it not make sense?

For more information about our services, visit the following links.

Cryogenic Deburring
Cryogenic Deflashing
Electromagnetic Micro Deburring

Give us a call today at 508 459-7447 or email us at info@nitrofreeze.com. We would be pleased to review your parts and see if we can solve your burr and flash issues.

Deflashing for Plastics

In these interesting economic times, it is hard to get the funding to replace molds and their associated tooling. It is understandable for companies to replace their molds as it removes several secondary operations from the manufacturing process. If funding is not available for mold replacement, then we have the solution to help keep mold houses producing parts on old molds.

As molds wear, seams develop and enlarge. During the molding operation excess material squeezes into these seams and flash develops. When the parts are ejected from the mold, the problem appears. Flash can be seen on the external geometry of the part along parting lines and around edges. Sometimes excess flash can even end up in inner dimensions due to through holes and cross holes. The Cryogenic Institute of New England, Inc. offers deflashing solutions for the removal of flash from molded plastic parts.

First, we offer our deflashing service for the removal of flash from molded parts. Our company uses a form of deflashing termed cryogenic deflashing. Cryogenic deflashing utilizes freezing temperatures, polycarbonate media, and batch processing to remove flash. Rather than have several people remove flash by hand (which raises workman’s compensation through cut fingers) at slow speeds; we are able to deflash thousands of parts daily at significantly lower costs. Automation of our deflashing operation lowers your costs and allows your workers to do more productive things with their time.

Another option that we offer is cryogenic deflashing equipment sales. If you have a large enough operation and require deflashing from day to day then this may be your best option. We offer several models for cryogenic deflashing, from table top models to full size standalone units. These deflashing units are among the most efficient in terms of liquid nitrogen consumption available today.

Finally, if we cannot deflash particular parts then we will find a company who can. Through our many contacts in the deflashing and deburring industry, we will be able to find a solution for your flash problem. Many of these contacts are also capable of sourcing machinery if required.

Before we do any production orders of deflashing for your parts, we require samples. Through our sampling process we are able to calculate batch size and pricing. We also request that you include a drawing when sending a sample if possible. For imformation about the deflashing process take a look on our web page titled Deflashing, Cryogenic Deflashing, and Deflashing Plastic - Cryogenic Institute. So, call us today at 800-739-7949. We have the solution to your deflashing problem.

Cryogenic Deflashing for Rubber and Silicone Parts

One of our service offerings, cryogenic deflashing has seen a major spike in orders lately. Many customers with silicone and rubber parts are utilizing cryogenic deflashing to clean any excess flash from their parts. For the past twenty five years cryogenic deflashing has been the most efficient way to remove flash from rubber and silicone parts. This form of deflashing can save manufacturers a significant amount of money over hand deflashing.

There are two types of cryogenic deflashing available today. The original method involves a large barrel spinning around. This form is called cryogenic tumble deflashing. The barrel is filled with the parts then cooled to cryogenic temperatures and tumbled. This form of cryogenic deflashing is good for smaller parts with excess flash on the edges. As the parts are tumbled at such low temperatures the flash flakes and rubs off of the parts. Smaller rubber and silicone gaskets are also suitable for this process. We offer cryogenic tumble deflashing in house and have for many years.

The second form of cryogenic deflashing utilizes a media to spray the parts. This process was introduced several years after cryogenic tumble deflashing. We refer to this form simply as cryogenic deflashing. Parts are inserted in to a basket which is then put into the machine. This process is computer controlled and capable of saving recipes for each particular part that is run. Variables that are computer controlled include time, temperature, throw wheel speed (rate at which media is blasted), and basket rpm. Other variables include amount of parts in the basket and the media size used on the parts. This process is more efficient than tumble deflashing for many kinds of parts. Parts with parting line flash, gate flash, ejector pin flash, and flash within cross holes and slots will be removed with this process. This form of deflashing is more effective because cycle times are shorter due the extra media blasting capability. As a result, we are able to save you more money when deflashing your parts. This particular cryogenic deflashing service has become one of our most successful service offerings.

Cryogenic deflashing offers an efficient means to remove flash from your parts. Turnaround time is typically two days after receipt which means fewer delays. Process times are often twenty minutes or less, allowing significant cost-savings. If your parts have very exquisite geometries and a fixture is required, we can design and build one. For those utilizing cryogenic deflashing in house within their manufacturing process, now is the time to outsource especially with fluctuating manufacturing orders. Think about all that wasted money spent on unused liquid nitrogen. Shipping costs are much less than the money wasted on lost liquid nitrogen. Call us today at 800-739-7949 for an efficient way to remove flash from your molded parts.

For more information about cryogenic deflashing, take a look at http://www.nitrofreeze.com/deflashing.html. For a Frequently Asked Question section on the process, please visit http://www.nitrofreeze.com/deflashing_deburring_faq.html. To see the cryogenic deflashing process in pictures, go to http://www.nitrofreeze.com/deflashing_deburring_process.html.

We will be presenting these services at the Eastec 2009 tradeshow at the Big E Exposition fair grounds in Springfield, Massachusetts from May 19th to May 21st. You can also visit us at MassPlastics 2009 tradeshow at the Royal Plaza Hotel and Trade Center in Fitchburg, Massachusetts on October 21st and 22nd. Hopefully we will see you there!