An experimental miniature hybrid connector system eliminates the need for a separate plastic housing and reduces overall package size and weight. The hybrid connector system from Z-Axis Connector Co. (Warminster, PA; www.zaxisconnector.com) incorporates a heat-activated adhesive to secure the connector. Electrical connection is made as the adhesive is displaced, allowing fine, gold-plated wires to be held in contact with pads on a substrate. The 0.05-mm diam standard wires are bonded to a polyimide substrate with enough strength to be used in repeated mate–demate testing applications. The connector can be reheated and removed for repair or replacement operations.
A two-way closed valve is now available with in-line barbed fittings. The Series 58 subminiature solenoid valve offered by Peter Paul Electronics Company, Inc. (New Britain, CT; www.peterpaul.com) comes in 3.5 or 0.9 W units. The valve is suitable for interfacing to circuit boards and miniaturized components with pneumatic outputs. Analytical applications for medical or chemical uses can be operated directly from most programmable controllers. The unit measures 2 × 1 × 5/8 in. and has a maximum operating pressure of 300 psi, with burst pressure of 1500 psi. Temperature range is –5 to 122°F and coil voltage is 6–220 V ac at 50–60 Hz.
A can stack step motor is available with unipolar or bipolar construction. Danaher Motion (Wood Dale, IL; www.danahermotion.com) offers its Portescap 42S048 step motor with sintered bronze sleeve bearings. The motor features a 7.5 ° step angle and provides up to 7.2 oz-in. of holding torque. Windings can be optimized to satisfy specific application requirements. The motor is suitable for use in analyzers, pumps, and scanners. Ball bearings are optional.
A maker of diamond-tipper tools has introduced a line of PCD rotary tools. The PCD tools from E.C. Kitzel Inc. (Cleveland; www.kitzel.com) replace solid carbide or carbide-tipped tools and offer longer tool life and better size control. Available in all sizes up to 4 in. diam, the tools can be designed with integral shank special connectors. The tools can be used with aluminum, copper, presintered tungsten carbide, and alloys such as silicon-aluminum, brass, bronze, copper, lead, and manganese. In addition to nonferrous metal workpieces, the tools can be used with carbon, ceramics, fiberglass composites, graphite, and plastics.
A design kit discusses the benefits of insert molding. The kit is available from Microplastics Inc. (St. Charles, IL; www.microplasticsinc.com). Each kit comes with a working, practical example of an insert-molded component designed into an everyday item. Also included is a sintered component which is an actual prototype sample from the company’s rapid program development process. A white paper on the insert molding process and a company brochure are also in the kit. Insert molding can be used to produce switches and relays, lighting components, fixtures, connectors, timers, disk and tape drive components, and filters.