Canadian Plastics

Technology Showcase (December 01, 2005)

Canadian Plastics   



Materials...

Materials

Natural-fibre filled PE composite offers mechanical, dimensional stability

TP Licocene PE MA 4351 is the latest adhesion promoter for polyethylene (PE) and natural fibres from the Pigments & Additives Division of Clariant Ltd.

TP Licocene PE MA 4351 is a highly polar PE wax grafted with maleic anhydride for effective bonding and compatibilization in natural fibre-filled PE composites. The wax is offered both as a fine grain or a granule.

Advertisement

The reactive anhydride forms new stable bonds between materials of varying polarity resulting in extraordinary adhesion properties.

Compared to systems without additives, the mechanical properties of finished components are significantly improved. In highly filled applications TP Licocene PE MA 4351 offers higher e-module, tensile strength and bending stress. Additionally, water absorption is reduced, providing dimensional stability.

Clariant (Canada) Ltd. – Pigments & Additives Division (Markham, Ont.) www.pa.clariant.com; 888-666-6485

Rubber-like matte finish enabled through Teknor TPE

Plastics processors can now impart a rubber-like matte finish to products by using Teknor Apex’s new Flexalloy 9750 Series of high-performance vinyl thermoplastic elastomers (TPEs).

While the 9750 Series compounds have processing and physical properties comparable to the general-purpose 9100 Series, Teknor Apex has formulate them for applications where a low-gloss surface is aesthetically desirable.

Additionally, while glossy products tend to “block” or stick to each other, the Flexalloy 9750 Series exhibit anti-blocking properties that ease handling of films such as bin liners, flexible “accordion” hose and mating parts such as weather-stripping for windows and doors.

Besides exhibiting the look, feel and elasticity of polyolefin and styrenic TPEs, the 9750 Series also surpasses them in tear, tensile strength and resistance to flexural fatigue. However, they retain the traditional advantages of vinyl including better resistance to oils and wider formulation versatility.

The Flexalloy 9750 Series is available in Shore A hardnesses ranging from 35 to 80.

Teknor Apex – Vinyl Division (Pawtucket, R.I.); www.teknorapex.com; 800-554-9892

Ciba launches scratch-resistance additive for auto applications

The Irgasurf SR 100 additive from Ciba Specialty Chemicals is specifically designed to boost scratch resistance of auto parts made of polypropylene/thermoplastic olefins (PP/TPO) such as instrument panels, door panels and exterior parts like bumper fascias and side trim.

Capable of imparting scratch performance up to 15 Newtons in the five-finger and cross-cut Erichsen tests used by many automotive producers, it also performances efficiently when combined with various light stabilizers. As well, it does not show any detrimental surface effects like stickiness or exudation during processing and use.

Ciba Specialty Chemicals Canada (Mississauga, Ont.); www.cibasc.com; 888-371-2422

Cost-effective COC now available from Ticona

For plastics processors that don’t require high-level optical qualities for their packaging applications, Ticona has produced a more cost-effective grade of its cyclic olefin copoylmer Topas.

Other than optical qualities, Topas 8007F-100 has the same basic properties as other Topas grades, including a broad processing window and an excellent cost-performance ratio as a blending component in polyethlyene (PE)-based packaging films to add stiffness, thermoformability, controlled tear, improved sealing and antiblock characteristics. Best results have been achieved with linear low-density PE (LLDPE) — including metallocene and plastomer LLDPEs — low-density PE (LDPE), high-density PE (HDPE) and blends of those polymers.

Ticona (Florence, Ky.); www.ticona.com; 859-525-4740

Omniflex announces ether-amide films

Omniflex Inc. has introduced its TX4000 series of Transport brand ether-amide-based, waterproof-breathable films. The physical properties of these new films make them suited for applications requiring chemical resistance, low static and high temperature resistance.

Their ability to be sterilized using ETO or gamma methods prior to use, as well as providing a complete viral barrier during use, are important to producers of medical garments, drapes and wound dressings.

The TX4000 series joins the company’s other barrier films, such as the TZ1500 polyurethane films and the TX2000 co-polyester films.

The TX4000 series are available in thickness ranging from 0.2 to two mils, cast on polyethylene, polyester or paper carriers, and in widths of up to 68 in. Available options include custom formulations, slip, colour or surface characteristics.

Omniflex Inc. (Greenfield, Mass.)

www.omniflexfilms.com; 413-772-3773

3D Systems’ Accura 25 simulates PP for prototypes

Accura 25 Plastic SL plastic, a new opaque and white engineered material from 3D Systems Corp. simulates the look-and-feel of molded polypropylene (PP).

Designed for use on all solid-state-equipped SLA systems, including the firm’s Viper Pro SLA system, Accura 25 also delivers excellent accuracy, speed and shape-memory, making it suitable for functional prototypes as well as master patterns.

Additionally, the durability and flexibility of Accura 25 makes it ideal for automotive and electronics applications. For automotive applications, Accura 25 is ideal for prototyping and design of trim components and fascia. In electronic applications, the material is a good match for the design and testing of connectors, wiring harness and enclosures.

3D Systems Corp. (Valencia, Calif); www.3dsystems.com; 661-295-5600

NatureWorks corn-derived polymer to achieve greenhouse-gas-neutral status

NatureWorks LLC’s corn-based PLA polymer will soon become the industry’s first greenhouse-gas-neutral polymer.

By purchasing renewable energy certificates (RECs), which serve as an offset to cover all of the emissions from the energy used for the production of PLA, means the production of renewable energy used to produce PLA will be equal to that of non-renewable energy. The result will be a 68 per cent reduction in fossil fuel use.

Prior to this announcement, NatureWorks’ PLA used 30 to 50 per cent less fossil fuel than petroleum-based polymers and emitted 30 to 55 per cent fewer greenhouse gas emissions.

NatureWorks LLC, a division of Cargill Inc. (Minneapolis, Minn.) www.publicaster.com; 925-742-0571

Dow copolymers boost film conversion performance

The Dow Chemical Company now has available two new grades of its VERSIFY propylene-ethylene copolymers.

VERSIFY 2300 is designed for blow stretch hood applications, as well as a wide range calendering and extruded applications, and as a blend component for thermoplastic elastomers (TPEs).

VERSIFY 2300 gives film excellent elasticity, a good holding force and enables the film to better follow the contour of packaged goods. It also features good tear-resistance and reduced wrinkles and “ear” formations.

Additionally, VERSIFY’s 2300 molecular structure delivers better recyclability. This is because it is made through a novel catalyst technology, used with Dow’s INSITE polymerization process, incorporates higher levels of ethylene in films creating a unique molecular architecture giving the polymers properties not previously realized.

VERSIFY 3300 can be used for stretch cling and elastic film as well as blend for TPEs and thermoplastic olefins. It is also ideal for cast stretch film sealants. Compared with very l
ow-density polyethylene (VDPE), it can be used at lower additions levels: five to 10 per cent compared with 30 to 40 per cent.

With VERSIFY 3000 film can be run on wrapping machines in both hot and cold conditions. Cling tested after three months retained its characteristics, and the material delivered lower noise levels.

The Dow Chemical Canada Inc. (Etobicoke, Ont.); www.dow.com; 800-363-3500

Ashland Canada Corp. — General Polymers (Mississauga, Ont.); 905-823-1800

Canada Colors & Chemicals Ltd. (Saint-Laurent, Que.); 514-333-7820

PolyOne Distribution Canada Ltd. (Mississauga, Ont.); 888-394-2662

Injection Molding

Boy debuts compact 55 MVV insert molding machine

Dr. Boy GmbH & Co. KG unveiled its latest insert molding machine, the 55 MVV at Fakuma 2005, in Friedrichshafen Germany, in October.

The 550-ton unit has a large mold space and tie bar distances of 360×335 mm and a shot weight maximum of 158.9 g. Due to its vertically arranged clamping unit, the BOY 55 MVV has a length of just under three m and a footprint of 3.49 sq. m, making it ideal for integration into automated production lines.

For micromolding, Boy introduced the BOY 12 A. The machine’s standard 12 mm plasticizing unit and optimized screw geometry are designed for shot volumes starting at 0.1 cm cu. Compared to the customary 14 mm plasticizing units, the BOY 12 A unit reduces material dwell by 50 per cent.

Boy Machines Inc. (Exton, Pa.) www.boymachines.com

Barway Plastic Equipment Inc. (Vaudreuil-Dorion, Que.); 450-455-1396

SDS Manufacturing Co. Ltd. (Mississauga, Ont.); 800-565-3477

Tecnomagnete magnetic quick-mold change system now available for Milacron I/M machines

Milacron has added Tecnomagnete Inc.’s Quad-Press Quick Mold Clamping system to its list of factory-integrated QMC options for Cincinnati Milacron injection molding machines.

The Quad-Press system can be used on vertical or horizontal injection machines, and with standard or multi-shot/revolving-plate molds.

Molds weighing tons can be changed in minutes with this system, compared to hours for traditional mold clamping techniques. Additionally, Quad-Press’ clamping action eliminates any distortion that might occur with mechanical clamping, and holds a mold perfectly parallel to the platen, resulting in improved mold consistency.

Quad-Press and other QMC systems are available on all sizes of Milacron injection machines, including Robotshot, Powerline, NT, Maxima, Magna Toggle, Magna Vertical and Ferromatik Milacron K-TEC machines.

Cincinnati Milacron – Injection Molding (Batavia, Ohio); www.ferromatik.com; 513-536-2002

Reduce cycle time with water-assist molding

A water assist injection molding system developed in Germany is now available in Canada through the co-operation of Niedermair Plastics Technologies Inc. (NPT), and Plastic Automation Engineering Inc. — Negri Bossi’s non-exclusive Canadian agent.

A complementary process to gas-assist molding, water-assist allows processors to make larger channels over five m, with cross sections up to 60×80 mm. A larger channel means savings on raw material.

The cost of processing cooling pipes, for example, can be reduced.

Cycle time can be reduced to one-third that of gas assist molding; water is continuously pumped through the part, so that it cools from both the inside and the outside.

Another benefit of water-assist is a reduction in the clamp force tonnage needed to mold the part. Parts that would have normally been molded on a 1,000 ton I/M machine can be molded on a 300 to 500 ton I/M machine. Mold size determines the machine size.

Additionally, almost any type of resin may be used with water assist injection molding, with the exception of long-glass fibre-reinforced materials.

The water assist injection molding system was originally developed by the IKV, a research institute in Aachen, Germany and was commercialized three years ago by PME Fluidtec GmbH.

Niedermair Plastics Technologies Inc. (Sharon, Ont.); 905-478-4071

Glycon device lets processors monitor screw, barrel wear

The SmartBarrel system from Glycon Corp. is an inexpensive way for processors to monitor screw and barrel wear without the lengthy downtime needed to remove the screw and take measurements conventionally.

A digital indicator is inserted through small ports in an injection-unit or extruder and takes measurements of screw-flight dimensions in a matter of a few minutes while the machine remains at near-processing temperature. A plug, which seals the port during normal processing, is designed to be measured to evaluate wear of the barrel liner.

SmartBarrel is installed with when a new processing machine is purchased or when the screw and barrel are replaced. Monitoring ports, similar to transducer ports, are drilled into the barrel at one or more locations where the worst wear is anticipated.

Plugs are inserted into the monitoring ports and baseline measurements are taken prior to beginning production. Subsequent measurements may be taken whatever frequency is desired by the processor.

Glycon Corp.; (Tecumseh, Mich.)

www.glycon.com; 800-255-9969

Reaction Injection Molding

Krauss-Maffei unveils multi-colour mixing head for SkinForm process

Krauss-Maffei Corp.’s SkinForm process combines injection molding and polyurethane reaction injection molding (RIM) into a single step.

At Fakuma 2005, Krauss-Maffei launched the MK 5/8-ULKP-2VV+2K mixing head, which is capable of colour change from shot to shot. Included is a micro-colour metering system that enables switching to a new colour simply by swapping a colour module.

The pigment is added in the mixing head, enabling the colour change to take effect from one shot the next. As a result, even small shots are perfectly homogenized.

The mixing head has four nozzles. The PU components are pumped into the mixing chamber through the first two, and the other two nozzles can be used to meter in a different colour, but only one colour is activated per shot.

Products made with the SkinForm process have a leathery feel and high scratch-resistance. Additionally, different hard and soft zones can be created by varying the thickness of the PU skin.

Krauss-Maffei Corp. (Florence, Ky.); 859-283-0200

www.krauss-maffei.de

Extrusion

Machine keys gone on EXcXP-touch control system

Cincinnati Extrusion GmbH has done away with machine keys for its latest control system, the EXcXP-touch — it’s controlled exclusively via touch-screen.

Cincinnati’s specialists can adjust any operator interface to fit any of its customers’ specifications, even those from other vendors.

Following selection via a password-protected program, the machine operating keys appear in the same pre-set position at the bottom of a 17-inch touch-screen. The screen is laid out in panel format with the upper section providing space for visualization, and is ideal for right-handed and left-handed operation.

Additionally, users don’t need to scroll up and down within a page because the complete machine documentation in DIN A4 panel format fits within the screen.

And, the system’s large control keys let employees wearing gloves to easily operate it.

Customers can enter test directly on the screen or edit existing text by use of a virtual PC keyboard.

Additionally, the control unit can be operated by remote control from a local PC via Ethernet or from a distance via notebook or personal digital assistant.

Cincinnati Extrusion Inc. (Erlanger, Ky.)

859-746-1530; www.sms-k.com

Blow Moldi
ng

Uniloy Milacron to expand horizontal shuttle machine range

Uniloy Milacron will make available next year two new additions to its range of horizontal shuttle blowmolding machines.

The UMS 8.S/D is suitable for packaging up to five L and is slightly bigger than the firm’s existing UMS 6i.S/D model with cantilevered clamps.

The mold length of the 80-ton UMS 8.S/D will be 400 mm, with the mold protruding an extra 50 mm. Mold width will be 390 mm, mold thickness 2×130 mm and daylight opening 190 mm.

Additionally, the UMS 35.S/D will make its debut in early 2006. Designed specifically for processing 20 to 20 L jerry-cans, the UMS 35.S/D has a clamp force of 350 tons and generous mold dimensions for molds as long as 700 mm, as deep as 2×250 mm and as wide as 930 mm.

The UMS 35.S/D is essentially a modified version of the UMS 30L.S/D unit to make it ideal for jerry-can production. Modifications include independent opening and closing of take-out masks from the mold’s open and close movement, individual calibration cylinders per mold cavity and modular concept for 0-2 post cooling stations.

Uniloy Milacron Inc. – Industrial Blow Molding (Tecumseh, Mich.) www.uniloy.com; 517-424-8756

Scherer Plastics Systems (Haslett, Mich.); 517-339-0027

Auxiliary Equipment

RPT trimming solution targets plastics industry

Designed specifically for the plastics industry, Robotic Production Technology’s (RPT) portable, pre-engineered RPT RoboTrim RT-400 router trimming and knife deflashing solution can be used by injection molders, blow molders, thermoformers and rotational molders.

Its servo-controlled table has the ability to rotate a part as the robot is trimming, allowing each side of the part to be trimmed in a very compact work cell. It can accommodate part sizes up to 45 in. in width, 45 in. in depth and 36 in. in height.

Mounted on a single base, this modular system is easily moved to different locations around a facility and is easy to set up.

The RPT RoboTrim RT-400 is designed to use the FANUC-based RPT R-44A 6-axis robot and an auxiliary axis, servo-controlled rotating table with a 60 degree per second motion on the servo table with a maximum part and fixture weight of 250 lb.

Included is the RPT RouterWare application software, which makes the system easy to use, and the FANUC Robotics colour screen iPendant.

Robotic Production Technology (Auburn Hills, Mich.); www.rpt.net 248-829-2800

Mattec entry-level production monitor cost-effective

Costing less than US$850, the MIU machine interface unit (MIU) Level Z from Mattec Corp. automatically monitors machine production and downtime, while allowing for manual entry of downtime reasons, scrap counts and scrap reasons.

Capable of processing all the basic data required by entry-level production monitoring, planning and scheduling systems, such as the firm’s Man-A-ger and ShopPro systems, the MIU Level Z is designed for applications that require a one-to-one connection of machine and MIU.

Prior entry-level systems from Mattec served up to 16 machines and required operators to enter manual data from a central location.

Features of the MIU Level Z include a two-line digital display and keyboard.

Mattec Corp. (Loveland, Ohio); www.mattec.com; 800-966-1301

Sterling TCU handles big jobs

Sterling’s 6017 Fluid-Circulating Control System offers simple and easy-to-use operation and is ready to run when power and circulation connections are made.

Pumping rates of 90, 150 or 200 gpm are standard as well as a heater size of 50 to 200 kW, heat exchanges from 3.9 sq. ft. to 21 sq. fit, and a temperature range reaching 550 F.

The unit’s M2B+ Microprocessor Controller features PID control for both heating and cooling. It also has a built in Ramp/Soak feature as well as Setpoint, To Process, From Process and DT displays.

Other features include positive displacement, packed pump with drip return pump or mechanical seal, TEFC pump motor, a NEMA 12-style electrical control enclosure with IEC electrical components, disconnect switch and a pressure-actuated bypass valve.

Sterling (New Berlin, Wis.); www.sterlco.com

CNSmith Plastics Machinery Sales Inc. (Georgetown, Ont.); 416-917-3737

Dual-track conveyer enables multiple in-line operations for large parts

Conveyer Technologies Ltd.’s new Dual track Precision Indexing Conveyor delivers single-track positioning accuracy with dual-track versatility.

The open-centre design permits a variety of in-line operations, while dual track allows processing of smaller parts on each belt or large parts up to 10 lb. and 24 in. in length across both belts.

The conveyor’s FlexLoc Convertible Holder System provides (plus/minus symbol) 0.09 position tolerance in multiple axes for mounted part holders.

Various stations, combine with single- or multiple-pitch indexing enable single or multiple parts per index. Standard conveyer lengths range from two to 20 ft. with special lengths available by request.

Conveyer Technologies Ltd. (Milford, Ohio); www.conveyertechltd.com 513-248-0663

Advertisement

Stories continue below

Print this page

Related Stories