Handling fixture

For secondary operations after blowing, it may be necessary to hold the product precisely in place. In such case, the blow mold is combined with a handling fixture (Figure 1.157). The molded product is inserted in the fixture either by the motion of the mold or with the product transporting grabber. 

FIGURE 1.157 Blow mold with handling fixture and trimming die Horizontal stroke... 

The handling fixture carries the product into the secondary operation station by either the mold motion or the action of a transporter. There, the flash is first trimmed, and the other operations are carried out, such as drilling, milling, and cutting. Advantages ... 

FIGURE 1.159 Blow mold for an air duct, with a handling fixture for seoondary operations... 

Light sources are only rarely used without a fixture to house the light source. A fixture makes handling and operating the light source safer and helps provide... 

The upper limit depends quantitatively on the viscosity that can be processed through the casting fixtures in reasonable time. Too high a viscosity may also lead to problems under certain flow conditions as, for example, when propellant folds over on itself to form a void space which may remain as a defect in the cured grain. If the propellant grain is to be formed and cured by screw extrusion, however, somewhat higher viscosities can be handled. A viscosity of 1600 poise has been reported (9) for a PVC plastisol propellant processed this way. 

Typically a full cure will take less than 1 min and can occur with certain adhesives in 15 to 30 s. The partial cure process is usually employed on larger, more difficult to fixture parts. Heat times for sufficient handling strength can be as low as 3 to 10 s. A secondary heat source such as a final paint cure oven will then fully cure the adhesive. 

Use Brazing and furnace fixtures pumps and pump parts handling corrosive, abrasive slurries rocket motor components spray nozzles burners pyrometer protection tubes sinker assemblies in wire aluminizing bolts and nuts valve parts aluminummelting furnace linings and parts conveyor parts. 

So it goes, all day long. The outside of the house is protected with hydrocarbon paint or possibly hydrocarbon derived vinyl plastie siding. In the car the dashboard, steering wheel, carpet, paint, lights, tires, belts, hoses, and in some ears the fenders, are hydrocarbon materials. Hydrocarbon-derived lubricants aid the proper function of the mechanical systems. The desk top at work, the light fixtures, the writing pen, the typewriter case, the computer case, the computer tape, the floppy disk, the hammer handle, the toolbox, and an almost endless stream of materials that make our lives pleasant, easier and more productive, are directly produced from hydrocarbon materials. 

Awnings, fiberglass and plastics combination Bands, plastics Bathware, plastics except plumbing fixtures Battery cases, plastics Bearings, plastics Billfold inserts, plastics Blister packaging, plastics Boats, nonrigid plastics Bolts, plastics Bowl covers, plastics Boxes, plastics Brush handles, plastics Bubble formed packaging, plastics... 

Monocast. [Polymer Corp.] Heat-stabilized nylon u in paper and textile, construction, mining, metalworking, and material handling industries for bearings, valve seats, seals, gears, wheels, guides, tooling fixtures, insulators, wear parts. 

There are currently more than 40 families of polymers, maity of whose uses still go unrecognized because of their diversity. Most consumers many be familiar with polymers in the form of housewares, toys, appliance parts, knobs, handles, electrical fixtures, toothbrushes, cups, lids, and packages. But few are aware that... 

Fixtures are the bases that securely position workpieces while the assembly system performs operations such as pick-and-place and fastening. They are generally heavy and sturdy to provide the precision and stability necessary for automated assembly. They carry a variety of sirbstructures to hold the particular workpiece. While each fixture is different, depending on the workpiece it handles, several commonsense rules for their design are suggested ... 

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