8 results about "Aluminium bronze" patented technology

The application discloses a preparation method of high-hardness wear-resistant aluminum bronze alloy and belongs to the technical field of metal materials. The method is characterized by accurately controlling the content of aluminum to be 8.5-10.5%, the content of iron to be 3.0-5.0%, the content of nickel to be 2.0-4.0%, the content of manganese to be 0.8-1.5%, the content of silicon to be 0.1-0.4%, the content of titanium to be 0.05-0.20% and the content of zirconium to be 0.03-0.15%, and combining magnetic field assisted directional solidification and multi-stage heat treatment to realize the synergistic strengthening of beta' martensite and fine dispersed phase in a single matrix. The obtained alloy has a Vickers hardness of greater than or equal to 320HV, a wear rate of less than or equal to 2.5*10-6 mm3 / (N*m), an elongation of greater than or equal to 8%, and high hardness, high wear resistance and good plasticity and toughness. The application aims at solving the problems of insufficient reliability, uneven structure and industrialization difficulty caused by the dependence on surface coating or the introduction of endogenous hard phase in the prior art.

This utility model relates to a coated cover plate and a fixture for testing it. The coated cover plate includes: a glass substrate as the base for the coating layer; a magnesium fluoride coating layer, a tin bronze alloy coating layer, and a Ni-B-Si alloy coating layer sequentially coated on the glass substrate from the outside to the inside; and a thermochromic ink screen printing layer, an aluminum bronze alloy layer, and a niobium carbide layer sequentially coated from the inside to the outside. The thickness of the magnesium fluoride coating layer is 50-100 nm; the thickness of the tin bronze alloy coating layer is 20-30 nm; the thickness of the Ni-B-Si alloy coating layer is 20-30 nm; the thickness of the glass substrate is 0.5-3 mm; the thickness of the thermochromic ink screen printing layer is 8-12 μm; the thickness of the aluminum bronze alloy layer is 30-40 nm; and the thickness of the first niobium carbide layer is 15-25 nm. This novel cover plate coating layer structure, through a carefully designed multi-layer coating technology, achieves a comprehensive improvement in the performance of the glass cover plate.

This utility model relates to the field of friction brake pad technology and discloses a friction brake pad suitable for the braking device of a monorail locomotive, including a friction brake pad in contact with the track web and a brake seat fixedly connected thereto. The friction brake pad is made of beryllium copper alloy or aluminum bronze, and its surface is treated at high temperature to form an oxide composite layer. Rare earth elements are added to refine the grain, resulting in a friction coefficient fluctuation of less than ±5% under both dry and wet conditions. A 0.5mm wide parallel groove is formed on the braking surface, which, together with the ventilation groove in the brake seat, constitutes a dual heat dissipation system. A preferred design adopts a modular approach, dividing the brake pad into four sector-shaped units connected by corrugated spring steel sheets. Each module is equipped with an independent hydraulic control mechanism, and the piston rod end uses a spherical hinge to achieve angle self-adaptation. This invention solves the problems of large friction coefficient fluctuation and poor heat dissipation in traditional brake pads, and has advantages such as stable braking performance, extended service life, and convenient maintenance. It is particularly suitable for monorail systems with frequent braking.

The application discloses a verticality detection device for producing free-cutting aluminium bronze rods, which comprises a supporting seat and a piece to be detected, a vertical piece capable of ascending and descending is penetrated through the supporting seat, clamping pieces are installed on the top and tail of the piece to be detected, the clamping piece of the tail can rotate in the supporting seat through a shaft, a limiting piece which contacts with the bottom of the clamping piece of the tail is installed in the supporting seat, the limiting piece can keep the clamping piece of the tail in a horizontal state when it is reset after rotating clockwise, the piece to be detected is pulled up by a pull line mechanism, so that the two clamping pieces of the piece to be detected are on the same longitudinal line, the laser emitted by the laser head on the clamping piece of the top is projected on the clamping piece of the bottom, and whether the laser projection point on the clamping piece of the bottom is projected or deviated is observed to determine the verticality of the piece to be detected.

The utility model provides a kind of multifunctional quenching device for aluminium bronze alloy heat treatment, belong to quenching device field, including support frame, hoisting assembly and cleaning component;Quenching box is placed in the inside of support frame, and the inside of quenching box is equipped with basket;The utility model: the top of support frame is equipped with mounting cover around, mounting cover is equipped with fume collecting cover inside, and negative pressure fan installed at the top of fume collecting cover makes after work that negative pressure is generated, and the negative pressure generated in fume collecting cover is convenient for airflow to flow to fume collecting cover inside, when high-temperature oil fume steam generated during quenching is inhaled into fume collecting cover inside, larger particle smoke dust particle is filtered by coarse filter screen inside fume collecting cover, and after filtration, flue gas is adsorbed by activated carbon filter screen, so that the fine grease particle in flue gas is reduced, so that the oil fume steam generated is filtered and handled, so that the scene environment satisfies operation, and personnel body damage is reduced.