Showing papers on "Bimetallic strip published in 1975"

Ion-exchanged transition metal catalysts for the direct oxidation of olefins to epoxyalcohols

Abstract: Acylic or cyclic epoxyalcohols can be prepared by direct oxidation of an olefin when there is employed an ion-exchanged bimetallic catalyst, wherein one metal is from Groups IB or VIII, and the other from Group V.

Process for making composite bearing material

Abstract: A process for making a bimetallic bearing material comprising a hard metal backing strip having a leaded copper or leaded bronze bearing lining tenaciously bonded to at least one face thereof which includes the steps of applying a layer of a prealloyed metal powder of a controlled composition and particle size on one face of the backing strip, sintering the composite material in a reducing atmosphere at a temperature ranging from 1450° F to 1600° F, cooling the sintered composite strip to a temperature of 1000° F to 1200° F and densifying the composite strip by roll compaction to 100% of theoretical density in a manner to effect further sintering and enhancement of the bond strength between the backing material and lining The compacted strip thereafter is allowed to cool to a temperature below about 800° F in a nonoxidizing protective environment whereafter it can be fabricated into various bearing components, such as thrust washers, bushings, shell bearings and the like

Method of preventing oxidation during water quenching of steel strip

Abstract: In a continuous annealing operation of a cold rolled steel strip involving water quenching and over-aging treatments, a method employing a cooling system comprising a pair of rolls arranged to contact the surfaces of a steel strip, a pair of cooling water spray units arranged in symmetrical positions on both sides of the steel strip and a storage tank connected to the spray units. When the steel strip, heated to a temperature between 500° to 800° C is water quenched, the distortion of the strip during the water quenching is inhibited and the surface oxidation is reduced to such an extent that no supplementary pickling is required.

Safety system for covers of rotating machines - has electrically heated bimetallic element for actuating the lock to give time delay

Abstract: The safety system is used for locking of covers of washing machines, dishwashers and spin dryers. The delay in opening ensures that the cover cannot be opened until the machine has stopped its rotation. The cover is locked immediately on closing, and has a manually operated spring loaded locking latch. The electrically heated bimetallic strip is arranged on the edge of the plate and a resetting spring is arranged on the opposite side. The solenoid locks the latch immediately on energisation and the bimetallic strip is also energised and heated to ensure locking. The cover can be opened only after the bimetallic strip heater has been disconnected and after the strip has cooled down. The bimetallic strip releases on heating, the locking member actuated by the solenoid.

Sealing strip for rotary piston engine - comprising layers running obliquely of strip base side, with differing physical properties

Abstract: Rotary piston engine sealing strip is set in a radial groove of the piston or of the housing jacket, with its end curvature in linear contact with the inner surface of the piston; the strip consists of layers, with (partially) different physical properties. The layers run, w.r.t. the longitudinal and transverse direction of the strip, oblique to the base side of the strip, such that, in the region of the curvature, along the abutment line, the physical properties are partially different. Preferably the layers are wear-resistant, and are of hard metal, ceramics, quartz or sintered metal. Wear resistance is improved in the region of the pivot angle, during prolonged stressed.