References in periodicals archive ?
The experimental investigations revealed that the friction coefficient of both tested materials (cast iron FG25 and chromium steel 100cr6) decrease linearly with the increasing normal load applied on the disc by the pin.
Despite the large number of studies on friction surfaces with a partially regular microrelief, these surfaces are not widely used in practice, and some application attempts can lead to a negative effect.
SMEs encounter a range of frictions that slow or prevent them from fully exploiting the Internet's potential.
At GMP Friction Products, the interns are working to create automation projects using a robot and organize furnace line separators.
The need for the development of an asbestos free brake pad cannot be over emphasized as the health hazards posed by the use of asbestos in friction materials is not bearable and the current world trend towards the use of more environmentally friendly cars would necessitate the total phasing out of asbestos based brake pads.
Now, a joint study by VTT Technical Research Centre of Finland and Argonne National Laboratory (ANL) in USA says new technologies such as new surface coatings, surface textures, lubricant additives, low-viscosity lubricants, ionic liquids and low-friction tyres inflated to pressures higher than normal, can reduce friction by anything from 10 percent to 80 percent in various components of a car.
4,11,12) The latest studies conducted with low-friction ligatures showed differences between the results of the friction produced by these elastomeric ligatures and conventional ligatures.
The coefficient of rubber friction (f) may be defined as:
Experimental research findings presented in the paper show that the decrease of viscosity affects the friction process (variation of the friction coefficient).
NTN has developed a hub bearing that greatly reduces rotational friction compared to conventional products by adopting low viscosity grease for seal, improving the sliding surface of seal and low friction grease for bearing, and has been developing a market for the product.
We therefore might expect all of the service braking (including what many drivers currently view erroneously as emergency braking) to be regenerative so that friction brakes will, as Barton states, be required only for (extreme) emergency braking.
A different approach is undertaken to model the thermal effect of individual friction surfaces on torque carrying capacity.