Skip to main content
Sister Publication Links
  • Middle East Foam & Polyurethane
  • UTECH Asia/PU China
  • UTECH Europe
  • UTECH Las Americas
Subscribe
  • My Account
  • Login
  • Subscribe
  • Coronavirus
  • News
    • Asia
    • Americas
    • Europe
    • M & A
    • Financial results
    • Automotive
    • Perma-Pipe uses PU in Indian pipeline insulation project
      MPOB develops palm oil polyol
      BPCL Polyol project in doubt
      Japan's lacklustre PU production continued in November 2020
    • World automotive registrations recover in H2 2020
      Mlily to increase US market share following anti-dumping duties
      US footwear imports up 25% in November 2020
      Introducing UTECH Southeast Asia 2022
    • Wheat waste transformed into PU foam
      EC approves Kingspan's TeraSteel and Wetterbest purchases
      BTC Europe to distribute BASF’s polyurethane ingredients
      World automotive registrations recover in H2 2020
    • BPCL Polyol project in doubt
      PPG buys polyurea company Versaflex
      Recticel buys FoamPartner
      Recticel upgrades Q3 outlook despite raw material tightness
    • BPCL Polyol project in doubt
      Huafon estimates 2020 profit will be up to 40% higher than 2019
      Mlily to increase US market share following anti-dumping duties
      Stellar Q4 performance saves Wanhua 2020 earnings
    • World automotive registrations recover in H2 2020
      Car sales down 25% in Western Europe in 2020
      Patchy coronavirus effects hit global car sales in November
      November continues fall in Western Europe's car sales
  • Data
  • Information
    • Country Overview
    • Market Sector overviews
    • Technical articles
    • Company profiles and strategies
    • China’s PU industry on the path to recovery; plans for technology upgrades
      Chinese cold chains grow bigger
      Flexible foam rises to challenges in the Middle East and Africa
      Life at the cross-roads: what does the GCC offer PU?
    • Europe's flexible foam makers face rising prices as outages hit markets
      Western European car registrations rebound slowed in September
      Western European car registrations regained some ground in August
      Western European Car registrations rebound continued in July
    • Take out the VOC with hybrid release agents
      Batteries give pultrusions power
      Seeing a way through VOC and FOG
      Aromatic polyols for simpler rigid PU formulations
    • Hennecke and Frimo: an automotive partnership
      Pushing ahead: AutoRIM drives KM’s UK growth
      BASF opens it first ‘Creation Center’ in Mumbai with a PU twist
      Persistence pays off for CTM
  • Events
    • Exhibitions
    • Conferences
    • Webinars / Livestreams
    • Become a Speaker
  • Advertise
  • Contact Us
  • Issues
  • Subscribe
MENU
Breadcrumb
  1. Home
  2. News
September 20, 2011 12:00 AM

Vacuum assisted injection key to new fridge efficiency

Utech Staff
  • Tweet
  • Share
  • Share
  • Email
  • More
    Print

    Milan, Italy -- Cannon has released further information on its new vacuum-assisted injection (VAI) technology for refrigerator production, following a summit 9 Sept in Shanghai which bought together interested parties from government, industry and the media to discuss the development.

    Using the VAI method provides a cost-effective eco-design and superior energy saving, according to Cannon, which announced at the Shanghai event, with Dow Chemical Co. and Chinese fridge maker Haier, the first mass production of domestic refrigerators using the new Pascal/VAI technology.

    VAI has been around since 1998, and is used to apply a vacuum to the mould cavity for insulated sandwich panels made in a discontinuous process. Cannon has now extended this to the geometrically much more complex design of domestic refrigerators.

    A controlled degree of vacuum is applied into the jig where an empty refrigerator cabinet is positioned, before foaming. This reduced pressure is applied to the cavity during injection, and during expansion of the foam, this helps efficient filling of the cabinet, providing substantial benefits:

    • almost doubled productivity per foaming station, thanks to high reactivity formulations, providing faster demoulding.
    • optimised distribution of foam density throughout the whole cabinet.

    Close cooperation with Dow in the systems used resulted in the joint development of the whole Pascal solution. New polyurethane chemistry developed by Dow - which has not revealed further details -- reduces the foam's thermal conductivity to a new reference level, said Cannon, while maintaining foam density within industry-accepted levels and allowing a shorter polymerisation.

    And Cannon said several patents have been applied for by the two companies.

    The first industrial plant using with the Cannon VAI technology is in China, producing Class A++++ Haier refrigerators.

    These domestic two-door fridges consume 0.19 kwh/24 h (the average is 0.30 - 0.40 kwh/24 h for comparable competitor's models).

    Haier's fridges were launched in March 2011 at the World Appliance Expo in Shanghai.

    Cannon has also developed a VAI polymerisation jig, in which the fridge cabinet is maintained under a controlled vacuum during all the foam injection time.

    And finally Cannon's new RotoJig, a foaming fixture holding two polymerisation jigs mounted on the opposite sides of a rotating platform, allows floor space to be cut by 50 percent with a faster foaming cycle.

    PIC: Piero Corradi of Cannon presenting the Pascal/VAI technology at the summit in Shanghai.
    "

    Recommended for You
    Perma-Pipe uses PU in Indian pipeline insulation project
    Perma-Pipe uses PU in Indian pipeline insulation project
    World TPU market shrank in 2020
    World TPU market shrank in 2020
    MPOB develops palm oil polyol
    MPOB develops palm oil polyol
    Latest Issue
    Click HERE for Free Download
    View All Archives
    Get our newsletters

    Breaking news and in-depth coverage of essential topics delivered straight to your inbox.

    Subscribe today

    Register to access our archive of leading information on the polyurethanes industry.

    Subscribe now
    Connect with Us
    • Twitter
    • LinkedIn
    • Facebook
    • Youtube

    Follow us on social media for the latest polyurethanes industry news and event updates.

    Logo
    Contact Us

    Office 127,
    61, Willow Walk,
    London
    SE1 5SF
    E-mail us
    +44 (0) 203 287 5979

    Customer Service:
    +1 313 446 0450

    Resources
    • Advertise with Us
    • Media Kit
    • Staff
    • Careers
    • Ad Choices Ad Choices
    • Sitemap
    Legal
    • Terms and Conditions
    • Privacy Policy
    • Privacy Request
    Copyright © 1996-2021. Crain Communications, Inc. All Rights Reserved.
    • Coronavirus
    • News
      • Asia
      • Americas
      • Europe
      • M & A
      • Financial results
      • Automotive
    • Data
    • Information
      • Country Overview
      • Market Sector overviews
      • Technical articles
      • Company profiles and strategies
    • Events
      • Exhibitions
      • Conferences
      • Webinars / Livestreams
      • Become a Speaker
    • Advertise
    • Contact Us
    • Issues
    • Subscribe