Hydraulics tubes

Ri lex . [Hoechst Cdanese/Engineer-ing nasties Hoechst UK] Thermo-ph pdyester elastomer for blow mdding, htj. mdding, or extrusion, pofymer modification, hydraulic tubing, wire coatmgs, bellows, seals, dust covets. 

While many machines use only one hydraulic accumulator (as shown, for example, in Fig. 8.128g.l) and the two hydraulic cylinders are connected with common hydraulic tubing, the more sophisticated (and better) system uses at least one accumulator per bearing block and pressure lines that are separated from each other by non-return valves. In this design (as shown in Fig. 8.136), if the floating roller cocks, the hydraulic pressure in that part of the system that moves more also increases more and tries to push the bearing block back to regain a parallel position. Systems that are always in... 

Production of in the ORNL-HFIR hydraulic tube irradiation facility. Irradiations were performed in hydraulic tube no. 1 at 85 MW power. The thermal neutron flux at this position is 9.0 X lO n cm s with a thermal to epithermal flux ratio of 40... 

A thorough study of the production of Sn in the hydraulic tube (HT) of the HFIR has been reported (Mirzadeh et al. 1997), and it was shown that the yield from the (n,n ) reaction was higher than that obtained from the (n,y) reaction and the relative gain in the specific activity was 3.3. The cross section for the inelastic neutron scattering reaction for the production of Sn was 222 16 mb. A value of 176 14 mb for the cross section of the Sn(n,n ) Sn reaction obtained at HFBR was reported earlier (Mausner et al. 1985). 

For the reactor route, the saturation yield of Cu from the Zn(n,p) reaction at BOB is 4.14 0.37 GBq mg (112 10 pCi mg ) of Zn at position no. 5 in the High Flux Isotope Reactor (HFIR) hydraulic tube (reactor midplane). Production data and fast neutron fluxes available in irradiation facilities in HFIR and the High Flux Beam Reactor (HFBR, this reactor was permanently shut down in 1999) are summarized in Table 38.8. 

Timetal 3-2.5 Ti-3A1-2.5V Cold formable and weldable, this alloy is used primarily for honeycomb-foil and hydraulic-tubing applications. Industrial applications such as pressure vessels and piping also use this alloy. Available with Pd stabilization to enhance corrosion resistance. 

A new steam generator design has been developed with a collector made from stainless steel and reduced number of tubes mounted by hydraulic tube expansion. 

Exhibit 6-51 illustrates an elevated exchanger with the extractor and crane in position for bundle removal. Exhibit 6-52 provides details of a hydraulic tube bundle extraapr. 

The design of oil-hydraulic tube extrusion presses is simpler and cheaper than that of water-hydraulic presses due to the fact that doubleacting pistons are employed in the former. They have found wide application in light metal works since the ram speeds required in such works are very low and in most cases less than 25 mm/sec., thus requiring small horsepowers only. A further plus is that pumps and motors may be arranged in close proximity of the main cylinder (see pp. 203 and 208). 

Seamless hydraulic tubing (all outside diameters, except as noted) ... 

Source T. Andersson and B. Lundquist, Properties arxl Structure of Welded Joints in Ti-3AI-2.5V Hydraulic Tubing, WektngJ., Vol 53, 1974, p 314s reported in Aerospace Structural Metals HanrSxxrk, Code3725, Mechanical Properties Data Center, Battelle Columbus Laboratories. 1980, p 33... 

Four capsules, each with three foam samples plus a silicon carbide (SiC) temperature monitor, were irradiated in the High Flux Isotope Reactor (HFIR) at ORNL. Two capsules were used for the in-plane samples, and the other two were used for the out-of-plane samples. One in-plane and one out-of-plane capsule received an irradiation dose of 2.6 displacements per atom (dpa) while the other in-plane and out-of-plane capsule received an irradiation dose of 0.3 dpa. The location of the capsules within the hydraulic tube was such that the variation of the neutron flux was less than 15% from capsule to capsule. 

Failure to provide hydraulic pressure to critical subsystems Hydraulics pressure generator, valves, tubing, and so on Chafing, bending, and separation of hydraulic tubing Leakage and spills Storage... 

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