After deformed by 40%, aged at 470℃×2 h and then deformed by 80%, the tensile strength and elongation of Cu-0. 1Ag-0. 36Cr alloy could reach 592 MPa and 7. 5% respectively. Cu-0. 1Ag-0. 36Cr alloy exhibited good comprehensive properties and could meet the demand of high-speed contact wire.
Cu-0．1Ag-0．36Cr合金经40％变形+470℃×2 h 时效+80％变形后强度达到592 MPa,伸长率达到7．5％,综合性能可以满足接触线的使用要求。
Calculation of the length of contact lines of a double enveloping wormgearing with planar generating surface and finding out the size of contact area are the foundation of strength analyses of wormgearing.
The formula for load distribution on contacting line at axial direction of worm shaped cam indexing mechanism is derived by means of slicing method, which supplies a theory base for design according to strength and lubrication analysis.
The result shows that the shape of contacting line is obviously steeper than it was before optimization,the lubrication angle is notably increased and there is a great improvement on the distribution of contacting line.
The results showed that the surface temperature of friction pairs has a significant effect on scuffing. There is a critical temperature, under which no scuffing occurs. Friction pair temperature distributes symmetrically along the contacting line and the temperature at friction pair interface is highest.
To exactly describe the contact state and contact area of tooth surface of toroidal involute (TI) worm gearing, the authors introduced boundary condition into contact line analysis.
The results indicate the existence of a negative linear tension in the case of the rough surface of polystyrene microspheres, which is deformed along the three-phase contact line.
According to the model proposed, the monolayer looses its stability and locally collapses in the meniscus zone at the contact line of the monolayer B and substrate due to an increase in the electrostatic repulsion between the dipoles of molecules B.
Back Extraction of an Acid in a Two-Layer System with a Moving Three-Phase Contact Line
Inhomogeneous boundary conditions for the Navier-Stokes equations with a discontinuity on the surface phase contact line are formulated.
Probable mechanisms of destruction of an aerial contact wire are considered and dependences between variations of structural parameters of the wire material and its acoustic properties under a thermal in uence are established.
The laws of modification of the microstructure of a copper contact wire, its strength, and the acoustic parameters are investigated as functions of the heating temperature.
A LGWEB consists of a transparent conducting oxide film deposited onto a Si structure, busbars adjacent to the Si structure, and a contact wire grid attached simultaneously to the oxide and busbars using the low-temperature lamination method.
We have studied the effect of alloying of aluminum with copper (2-4%), silicon (2-4.5%), tin (10-15%), and lead (10-15%) on its wear resistance under conditions of friction in a couple with a copper contact wire.
In addition, the wear of the contact wire is minimally admissible.
The meshing state of conjugate and non-conjugate surfaces is analyzed through computation of contact lines and points.
Initially, dewetting from straight contact lines proceeded faster than the opening of circular holes.
The stability of the configuration is then shown to depend crucially on whether the equilibrium liquid-vapor interface stays inside the container or not, when continued analytically past the three-phase contact lines.
A flat plate moved up and down, inside and out of a liquid pool defines a simple, reliable experimental model to characterize dynamic contact lines.
Implications of the phase rule for capillary systems containing surfaces and three-phase contact lines with surface and linear c