Papers

  • Extra-Large Plant for Just-In-Time

Cannon Maersk

The request for large foam -insulated sandwich panels is on the rise in Europe, and Polyurethane’s characteristics perfectly match the processing difficulties linked with these huge elements. A Cannon - Manni foaming plant has just been delivered in Europe to produce very large building panels in a “just in time” sequence, according to the method used to assemble the final building.

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    Injectors for Pressure Control in PUR Mixing

    The injectors have a fundamental role in the Polyurethane (PUR) mixing. The purpose of the Paper is to explain why the pressure at the injector is so important and how to set and control it. The Paper does not investigate the possible forms and shapes of injectors or mixing chambers for optimising the mixing process. Shapes and forms are the “tricks “ that the different producers of mixing heads know and develop and are an important part of their skill.

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    Innovative Technology for Multi-PUR Sound Deadening Components for Large Engines: Combining Innovative Processes to Develop a Turnkey Solution

    This paper describes an innovative, automated concept to produce complex noise absorbers which must be bolted onto large engines. Produced with two different types of polyurethanes, these parts absorb a considerable amount of vibrations and noise.Requested to quote a "normal" production cell, the equipment supplier ended up providing a complete, large-scale plant based on the patented Foam & Film technology, which eliminates the release agent, its application and extraction, and all mold cleaning operations. In addition, it provides an encapsulated PUR part, which delivers better resistance to chemical aggression and moisture.

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    Refrigerated trucks: dedicated foaming solutions for extra-large insulated panels.

    Large insulated panels are increasingly needed for manufacturing huge insulated trucks. A variety of insulating media can be used for this demanding application, and Polyurethanes provide the most flexible solution. Automating the production of these large elements constitutes a challenging task. Cannon have matured significant experiences in the past ten years in this field. One of the latest achievements is a complete plant for the production of 13.6m long, 2.7m wide panels, installed last year in the new factory of a German leader of this field who makes two complete trucks per hour. High-pressure high-output metering equipment, large polymerisation presses, impressive panel-handling systems are illustrated in this paper, to witness the size of this challenging project executed by the Cannon Group.

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    Dedicated Solutions for the Industrial Manufacture of Curved Insulated Roofing Panels

    Curved insulated roofing panels are increasingly being requested by the building market in various lengths from three to six meters. Curved panels have been insulated with polyurethane foam, mineral wool and expanded polystyrene. For the manufacturer, these panels require a lot of storage space and represent a significant inventory investment while waiting for a customer. These are two good reasons for demanding “just-in-time” production solutions that deliver a flexible product mix in terms of dimensions, materials used for cladding, and insulation.

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    Cannon JL – A New Approach To High-Pressure Mixing In Polyurethane Technology

    The Cannon JL is a new family of high pressure L-shaped mixheads. The acronym JL stands for “Jet Less” identifying that mixing of the two reactive liquids is not obtained by injectors. The high turbulence - formed and maintained in a relatively narrow mixing chamber where the two component streams are delivered – does the trick. The liquid components are metered in a common chamber and then flow to the mixing chamber through variable restrictions where they acquire the necessary energy for efficient mixing. At the end of the mixing chamber an L-shaped geometry transitions the flow into a much larger delivery chamber, decreases its turbulence and permits the delivery of the mixed blend with a very laminar flow.