RTP compound helps keep out moisture
RTP Co. debuted thermoplastic electronic component encapsulation compounds to compete with thermoset materials.
The compounds protect sensitive components from moisture and other environmental conditions and improve thermal conductivity by dissipating heat. RTP claimed the compounds have a lower coefficient of thermal expansion than thermoset materials for improved thermal cycling performance.
The Winona, Minn., company envisions their use in encapsulating resistors, integrated circuits, capacitors and fiber-optic connectors.
Tel. (507) 454-6900 or (800) 433-4787, fax (507) 454-2041, e-mail [email protected]
Nissei PN units offer precision molding
Nissei Plastic Industrial Co. Ltd. has replaced its PS line of hydraulic injection presses with the new PN Series.
Nissei, based in Nagano, Japan, initially is offering the PN in two sizes, 40 and 60 tons of clamping force. The presses are aimed at high-precision molding, such as electronic parts.
Nissei gave the machines a new injection mechanism, including a new screw, heating cylinder and temperature controller. The machines also come with two kinds of hydraulic control systems, one that does digital servo control and the other to run hydraulic variable displacement pumps - which one is used depends on the type of parts being molded.
Nissei's U.S. headquarters, Nissei America Inc., is in Anaheim, Calif.
Tel. (714) 693-3000, fax (714) 693-7777.
New Foster urethanes maintain low friction
Foster Corp. has developed low-friction urethane compounds for medical applications such as surgical tubing assemblies.
The Dayville, Conn., firm claimed its new product has less than a third the friction of unmodified urethanes with the same tensile strength and elongation, unlike urethanes modified with poly tetrafluoroethylene that usually lose physical properties. Foster's lubrication system also has no adverse effect on adhesion and improves processing.
Tel. (860) 774-3964, fax (860) 779-0805, e-mail [email protected]
Victrex PEEK grade cuts etching damage
Victrex USA Inc. has introduced a polyetheretherketone grade designed for semiconductor production equipment.
E grade PEEK has low levels of ions such as sodium to protect against damage during etching and other semiconductor processes. The Greenville, S.C., firm claimed sodium levels of 25 parts per million or less compared with 350 ppm or more for competing polyphenylene sulfide compounds. Victrex said applications include clamp rings, retaining rings, screws and hardware, where the company said it lasts longer than PPS.
Tel. (800) 842-8739 or (864) 672-7335, fax (864) 672-7328.
Dri-Air unit offers dual-drying abilities
Dri-Air Industries Inc. has added a dual-hopper, portable mini-dryer to its product line.
The East Windsor, Conn., company is marketing the dryer to micromolding and laboratory facilities. The hoppers can dry two different materials at different temperatures.
The dryer mounts on top of Dri-Air's line of two-bed and four-bed 35-CFM desiccant dryers.
Tel. (860) 627-5110.
Sustaplast provides color for sheets, rods
Sustaplast LP has added custom-colored cast nylon sheet and rod to its product line of machinable shapes.
The Edgewood, N.Y., firm said the new products are especially useful in conveyor and machine component applications where color-coded parts ease set-up and assembly during changeovers. Packaging, electronics and medical equipment are some markets that would benefit from color-coded parts made from the Sustaplast offerings.
Tel. (631) 242-0175 or (800) 832-6787, fax (631) 242-5121, e-mail [email protected]
Kice splitters handle coarse, fine products
Wichita, Kan-based Kice Industries Inc. said its Gravity Stream Splitters spread both coarse and finely ground products, split them into smaller streams and discharge the material into gravity spouts.
A surge bypass protects the unit from an overload. The splitters are designed to work with Kice's pneumatic conveying systems and other products.
Tel. (316) 744-7151, fax (316) 744-7355.
Extrusion system offers high output
American Maplan Corp. in McPherson, Kan., is creating specific technologies for vinyl fence extrusion.
A new development is a hybrid profile extrusion system that offers high output and quick-change die common to pipe extrusion, at a cost lower than equipment for standard profile extrusion.
Two extruders feed a single extrusion, which uniformly distributes capstock material around the outside of the profile.
The system can produce 2,600 pounds of fence per hour.
Tel. (316) 241-6843, fax (316) 241-0207.
Industrial Magnetics eases product flow
Industrial Magnetics Inc. said its new Clean Flow housing for injection molding machines uses two offset magnetic tubes to force the plastic material to flow in a cascading pattern, ensuring direct, repeated contact with the magnets to remove tramp metal.
A clear Plexiglas door allows the product flow to be monitored.
The company in Boyne City, Mich., also introduced a line of plate magnets designed for plastic regrind operations. The magnets can be installed easily into a feed tray.
Tel. (231) 582-3100, fax (231) 582-2704, e-mail [email protected]
Film firms offering vinyl-free packaging
Two films firms are offering blister film alternatives to the standard polyvinylidene dichloride-coated PVC used in pharmaceutical packaging.
Tekni-Films said it introduced Novinex, coextruded barrier films containing cyclic olefin-based resins, touting them as vinyl-, halogen- and plasticizer-free.
Competitor Rexam Pharmaceutical Packaging said it is developing film based on cyclic olefin copolymers with protective outer layers of polypropylene.
Tekni-Films of Somerville, N.J., said Novinex provides moisture barrier equal to PVDC while providing safety and environmental advantages. They are coextruded films and are less likely than laminates to become contaminated while cavities are made during thermoforming, according to Tekni-Films. It said Novinex processes easily and does not crack during thermoforming.
Rexam's Integra Pharm C has stiffness and thermoforming properties as good or better than PVDC-coated PVC, claimed the Mundelein, Ill., company. It too is coextruded and contains no chlorine or fluorine in its materials. Its barrier matches PVDC-coated PVC, but it is less dense than conventional constructions.
Tekni-Films: tel. (908) 722-4800, fax (908) 722-4967.
Rexam Pharmaceutical: tel. (847) 362-9000, fax (847) 362-1848, e-mail [email protected] .com.
Dynisco introduces rheometer, purge unit
Dynisco Polymer Test calls the ViscoSensor on-line polymer melt rheometer the world's smallest such instrument. It measures just 22 inches long by 9 inches wide.
The unit samples from the process via an annular melt transfer line, installed through a single M18 pressure transducer port.
Dynisco Polymer Test also introduced an auto purge system that automatically removes any remaining pellets at the end of a test on its new Polymer Pellet Analyzer. The PPA can examine up to 5 pounds of pellets an hour, and detect particle contamination down to 25 microns.
Dynisco Polymer Test, a unit of Dynisco LLC, is based in Morgantown, Pa.
Tel. (610) 286-7555, fax (610) 286-9396.
Wexco's cylinders eliminate cracking
Wexco Corp. in Lynchburg, Va., introduced a new line of ``tool steel'' cylinders for injection molding machines. They boast a one-piece, nonsegmented steel liner that provides a smooth, uninterrupted and crevice-free bore, unlike competing tool steel cylinders on the market.
A patent is pending.
The one-piece design eliminates any chance that cracks may develop, which can trap colored plastic residue. That can contaminate different colored resins to be run next, and can shorten cylinder life if corrosive resins seep through to attack the backing tube.
Tel. (800) 999-3926, fax (804) 385-8387, e-mail [email protected] .com.
NFM unit producing extruders in Europe
NFM/Welding Engineers has started building twin-screw compounding extruders in Europe through its subsidiary NFM Iddon.
The first European-manufactured machine was delivered to Whitaker Technical Plastics Ltd.'s new factory in Macclesfield, England.
NFM/Welding Engineers, of Massillon, Ohio, bought rubber equipment maker Iddon Bros. Ltd. in Leyland, England, two years ago. The TEM-SS compounding extruder Iddon built for Whitaker Technical Plastics Ltd. has a screw diameter of 58 millimeters. The machine was commissioned in March.
This is the first machine of this type to be supplied by NFM Iddon following the recently extended licensing agreement between NFM/Welding Engineers and Toshiba Machine Co. Ltd. of Japan. NFM makes all major components except for the Toshiba-built gearboxes.
Tel. (330) 837-3868, fax (330) 837-2230.
Cloeren taking on orders for wide dies
Cloeren Inc. of Orange, Texas, delivered a 228-inch cast film die for making laminating food packaging film from linear low density polyethylene to an unidentified customer in Asia.
Cloeren claims the custom-made flat die is the widest die ever made for laminating film in the world.
Cast film is moving to wider dies, according to John Chalmers, division sales manager for Cloeren.
``We have made significant investments in wide-width machining capacity,'' he said.
The company bought a five-axis CNC machining center that can make dies as wide as 551 inches and a grinder.
Cloeren claims that in the last year, it received more than a dozen orders for dies that measure 188 inches and wider.
Tel. (409) 886-5820, fax (409) 886-5570, e-mail [email protected] eren.com.