Only search E-news PRA
 
In this Edition
February 2012
LEAD FEATURE
COMPANY NEWS
MATERIALS NEWS
MACHINERY NEWS
INJECTION MOULDING ASIA
RUBBER JOURNAL ASIA
ELECTRONIC ISSUE
PRA March 2012
Electronic Issue

Now Available
 

 

 

Injection Moulding Asia

Faster cycles with cooling technology

Mold Masters facility
H

ot runner supplier Mold-Masters, has formalised an agreement with Australia-based Ritemp Technologies through its US agent Ygrene Technologies, for exclusive global use of its patented evaporative cooling technology in hot runner applications that boasts faster cycle times.

With Ritemp, heat is extracted from the mould by converting it to latent heat of vapourisation. The resultant vapour rises to the top of the mould where it is condensed by simple heat exchangers. For every 1 g of water, latent heat absorbs 540 cal/°C. With conventional turbulent flow, 1 g of water only absorbs 1 cal/°C.

At the NPE show in April, a four-cavity mould manufactured by Canadian company StackTeck will be running in a Sumitomo-Demag machine making a 60-mm spout in 7.2 seconds, a 39% improvement over a conventionally cooled mould. The required cooling to the entire mould will be 18 GPM, a 55% improvement over a conventionally cooled mould. The cell will show, for the first time, both a Ritemp hot-half and Ritemp cold half.

 
 
 
.Terms & Conditions | Privacy Policy | PRA Home Page| IMA | RJA | Contact Us