News & Press Releases


Advances in Filament Winding and Mandrel Technology - 18 page technical paper - J. Ouellette CTO Acrolab

2011-03-31

March 31, 2011 - Advances in Filament Winding and Mandrel Technology - ABSTRACT pages 18. - Technical paper presented by Jospeh Ouellette, Acrolab CTO at the ACCE, Society of Plastics Engineers.

To see the full paper click on title below.

HEATPIPE/THERMOSYPHON AUGMENTED MANDRELS TO IMPROVE CURE QUALITY AND TO REDUCE CURE TIME IN THE THERMOSET PIPE AND TUBE FILAMENT WINDING PROCESS

Joseph Ouellette, Acrolab Ltd.
Windsor, Ontario, Canada

Process implications for the automotive sector and CAFE. Considering the drive to manufacture safe, lightweight vehicles and adherence to Corporate Average Fuel Economy (CAFE) intended to improve the average fuel economy of cars and light trucks (trucks, vans and sport utility vehicles) sold in the US and Canada any tubular structure or reinforcement would benefit from the uniform transference of energy during the cure.

Questions comments? Please call Acrolab R&D 519 944 5900 Best regards, Peter, Global Technical Sales Manager

 



Filament winding and heated mandrels - IsomandrelĀ®Technology - Video

2011-03-28

March 28, 2011 - Acrolab video production - "Controlling the Cure" -  Please have a look at this innovative technology from Acrolab that is making a dramatic impact on how plastics can be evenly and rapidily cured using induction and the new super thermal "isomandrel system" ® Narrated by Joseph Ouellette, CTO - Acrolab. Click on the image to start the video.

Questions comments? Please call Acrolab Engineering 519 944 5900 Best regards, Peter, Global Technical Sales Manager, Acrolab.



Optimizing Thermal Profiles in Injection Molding

2011-03-28

March 28, 2011 -

Optimizing Thermal Profiles in Injection Molding

Heating injection thermoset molds in a uniform manner to achieve near isothermal mold face conditions is a critical requirement for dimensionally sensitive engineered products.

Click on the picture above. This presentation will highlight  a unique  product within a technologically advanced heating system which provides near isothermal mold face conditions in conjunction with rapid thermal energy throughput. This system offers faster overall molding cycles, more consistent product performance outcomes, simplified maintenance and reduced down time.

Best regards, Peter Global Technical Sales Manager, Acrolab, Ltd.

 



Thermal Engineering and Thermoplastic Molding -

2011-03-24

March 24, 2011 - Thermal Engineering and thermoplastic molding. Acrolab has designed countless systems for both thermoplastic and thermoset molds. We optimize a tools’ thermal profile utilizing our ISOBAR® and ISOBAFFLE® technology within designing direct or indirect cooling systems. Within the context of thermoplastic molding, the unique heat transfer characteristics of the Isobar® superthermal conductor, when designed into the mold, ensures that energy build-up on the mold face is rapidly directed to the mold’s cooling channels.

Acrolab heat transfer systems provide for faster, more uniform cooling to the entire mold surface, which allows for shorter molding cycles. Rapid, uniform surface cooling also eliminates hot and cold spots on the working face, which in turn results in molded parts that are free from short shots, irregular shrinkage, and molded-in residual stress and warp.

It is not necessary to have the Isobar© in direct contact with a waterline to effect cooling; although Isobars© can be incorporated into the cooling channel, in may cases they need only be in proximity to a water line to promote effective cooling. Please look a the Presentation entitled 'Thermoplastic Molding using Direct, Indirect Isobar® &Isobaffle™ Cooling Systems. Questions, Comments?

We are standing by to help optimize your cooling profile. Call Acrolab Engineering 519 944 5900

Best regards,  Peter McCormack, BA, MA Global Technical Sales Manager Acrolab Ltd. Windsor, Ontario, CANADA 



New Media links for Acrolab - SLIDESHARE, LINKEDIN, FACEBOOK and more

2011-03-22

March 22, 2011 - Have a look at what is new in thermal engineering Acrolab posts can now be found on the following media links.

Acrolab Technology updates can also now be found on:

Best regards, Peter McCormack, Global Technical Sales Manager



Extracting Thermal Energy from Composting

2011-03-21

March 21, 2011 - Clean Energy - For years, Acrolab has been engineering, designing, and manufacturing heat transfer solutions, and is a world leader in specialized heat pipe technology. This super-thermal conducting technology provides the backbone for AgrilabTechnologies’ latest development. In fact, Acrolab’s Isobars can transmit heat energy thousands of times faster than a solid copper pipe and, at the same time, create an isothermic condition along the entire length of the pipe. Through the use of Isobars, Agrilab Technologies has been able to harness and transfer the biothermal energy produced during the decomposition of biomass(compost).

Best regards, Peter

Peter McCormack, BA, MA Global Technical Sales Manager



Thermal Engineering Research and Development Servcies

2011-03-16

March 16, 2011 - 

Thermal Research and Development Servcies 

What can Acrolab do to improve your current manufacturing processes thermal profile? Click on the picture for a quick look inside the facility.

 

We optimize thermal profiles in all aspects of manufacturing ... and offer custom designed solutions. What does that mean? From agriculture to automotive to aersospace we optimize thermal energy transfer. Acrolab is not only a premiere manufacturer of isobar heat pipes; it is a provider of thermal technology, at reasonable rates. Over 50 years, thermal engineering is our focus. Let Acrolab be an extension of your lab. UPDATED WEBSITE COMING SOON.  

For the latest presentations view the new Acrolab Channel. With over 6000 customers, Thermal Engineering is our business!



Improving thermoset molding cycle times with heat transfer technology - case study

2011-03-07

March 7, 2011 - I have often been asked to provide some examples as to process improvement with the Acrolab thermal management system. Below is an article which was printed some years ago, however it does provide for real data and a definite impact in terms of how Acrolab engineered, manufactured and installed a thermal transfer system which heightened through-put, saved energy and improved quality of the product. Questions? Comments? Please give me a call. 519 944 5900 

Performance Highlights - Cycle time improvement

The results were dramatic . . .


Not only was surface appearance improved, the Acrolab system made it possible to reduce curing time by 13 sec. The reduction in total cycle time averaged 22-23% over the old mold design, exceeding Bucher's own prediction of at least 15% improvement in cycle rates. Mold heating was totally stabilized through the entire depth of the mold. The face of the mold now registered the same temperature as the mold base. As a result, Square D's team was able to reduce set point temperature more than 40 [degrees] F, with a corresponding saving in energy costs.  Read the whole article below ….

Thanks and best regards,
Peter

Peter McCormack, BA, MA
Global Technical Sales Manager
Acrolab Ltd. Windsor, Ontario CANADA

______________________________________

Mold-heating technology raises thermoset molding quality.

By Michael  Fallon, Publication:
As printed in Plastics Technology
Date: Saturday, December 1, 1990

Mold-Heating Technology Raises Thermoset Molding Quality


Heat-transfer technology for thermoset molds has enabled a processor to eliminate a problem of uneven mold heating and reduce cycle times by up to 23%. When Square's D's Columbia, Mo., injection molding plant took delivery of its second 200-ton Bucher injection molding machine 18 months ago, molding engineer Gary Emanuel had strong expectations that the new equipment would yield better cycle times and less waste for the polyester BMC part he had been running on less sophisticated equipment. However, early in the startup process, it became evident that the design of the mold Square D had been using was creating problems that even the best of equipment and material couldn't overcome. The Columbia plant molds and assembles circuit breakers for household electrical service lines. The mold used for the breaker's plastic housing is both deep and complex in configuration. Production had been plagued by excessively long cycle times, incomplete curing, and haze and blisters on part surfaces. Through testing, Emanuel discovered a critical 50 [degrees] F differential between the heated mold base and portions of the core face. Because the cavity was so deep, when the mold was heated to a set temperature of 350 F, the reading on some mold surface registered only 300 F.

Process engineer Jeffrey Ison experimented with varying temperatures and preheating routines, with no improvement. Says Isom, "The hotter the mold, the faster the material cures. If you get too hot, you can damage the part, produce a hazy appearance, or, in the worst case, the mold will lock up on you." As Emanuel and Ison ran out of ideas, their equipment supplier, Bucher, Inc., Buffalo Grove, III., called to see how the new machine was performing. Emanuel recalls, "Bucher's response when it heard of our mold heating problems was reassuring. They had experience with other complicated molds and found solutions, including a new way to bring heat from the base to the face of the mold directly and instantaneously."

HEAT PIPES DO THE TRICK

The solution Bucher offered to the mold-heating problem was a heat-transfer technology for thermoset applications from Acrolab Instrument, Ltd., Windsor, Ontario. Acrolab's "Isobar" heat-transfer system consists of inserting an array of heat-pipe thermal conductors within the cavity and core of the mold to achieve high-speed heat transfer within the mold as well as thermal consistency of the mold faces. The system also employs integrally heated sprue spreader and core pins, which permit active heating and independent control of specific areas of the mold, such as bosses and sprues.


The Isobar system resides completely within the mold itself, and requires no additional external control hardware, nor any special processing or handling considerations. The principal benefits of the system are exceptional temperature uniformity of all molding surfaces and rapid mold-temperature recovery after each clamp opening. Acrolab's Isobar heat-pipe system was custom engineered to suit Square D's mold. In all, over 150 Isobar heat pipes of 13 different diameters were installed in holes drilled into the various inserts that make up the cavity and core faces. Acrolab engineers calculated minimum hole depth, location and wall thickness requirements to ensure that the inserts were structurally sound and that the Isobar array would produce the most uniform temperatures at all molding faces. All the heat input for the inserts was conducted by the heat pipes from a bank of cartridge heaters in the mold base. Square D's mold was sent to Artag Plastics Corp., a Chicago mold builder, for preparatory machining and Isobar installation. Holes had to be drilled, cleaned and dried for precision fitting of the heat pipes. Acrolab's service manager flew to Chicago to inspect the mold and install the Isobar system, a service extended to all Acrolab customers.

HOW IT PERFORMED

To evaluate the results of the newly installed heat-pipe system, Emanuel devised initial tests that would eliminate all other variables and provide valid comparisons. He took a computer readout produced a year earlier by the Bucher CNC press controller, and matched the parameters of that process exactly to run the new tests. He selected the same material, stroke, injection profile and plasticating profile. He pre-heated the mold to the specified temperature, and ran the process. The results were dramatic.


Not only was surface appearance improved, the system made it possible to reduce curing time by 13 sec. The reduction in total cycle time averaged 22-23% over the old mold design, exceeding Bucher's own prediction of at least 15% improvement in cycle rates. And Emanuel says he is certain they can do even better. Mold heating was totally stabilized through the entire depth of the mold. The face of the mold now registered the same temperature as the mold base. As a result, Square D's team was able to reduce set point temperature more than 40 [degrees] F, with a corresponding saving in energy costs.

 



Custom designed heat pipes for a wide arrary of industrial applications

2011-03-02

March 2, 2011 - Acrolab designs custom solutions for the management of  thermal energy transfer. Considering that energy transfer impacts all manufacturing processes, Acrolab has developed and manufactured a wide array of standard and specialty heat pipes. Click on the image and have look at a new presentation that talks to advances in thermoset plastic processing. 

For more information call Acrolab Engineering today. Best regards, Peter McCormack, Global Technical Sales Manager 519 944 5900 Windsor, ON CANADA



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