High-strength high softening temp. copper based elastic material

The present invention relates to a kind of copper-base alloy. It is a good elastic material, can be used for making precision elastic elements in the instruments, meters and electronic communication devices, and possesses good conductivity, higher tensile strength, high elastic limit and toughness, high softening temp., strong resistance to stress relaxation, good machining property, weldability and electroplating property, and high corrosion-proofing and antioxidation properties. Its material component composition includes: 4.6-6.8% of Ni, 1.1-2.6% of Si, 0.8-2.1% of Al, 0.21-0.52% of Fe, 0.14-0.43% of Cr, 0.08-0.19 of Ce, 0.04-0.12% of Mg and the rest is Cu. Said invention is rich in raw material source, non-toxic and low in cost, and can be partially substituted for beryllium bronze material.

Far infrared material water activator

The utility model belongs to the technical field of water quality improvement and water activating equipment, and particularly relates to a far infrared material water activator which comprises a cylindrical tube and a circular truncated cone tube, the cylindrical tube is a hollow cylindrical tube and is made of hard plastic, water activating materials are arranged in the cylindrical tube, baffles are arranged at two ends of the cylindrical tube, and water holes are formed in the baffles. The circular truncated cone tube is composed of a semicircular curved tube and a small cylindrical tube, the circular truncated cone tube is made of hard plastic, and the cylindrical tube and the circular truncated cone tube are bonded through glue. And the water activating material is a far infrared material such as volcanic rocks. The device is easy to operate, the two ends of the device can receive water ports, the water flowing effect is good, the filter element does not need to be replaced, the application ...

High softening temp. copper based elastic material

The present invention relates to a copper-base alloy. It is a good elastic material, can be used for making elastic elements used in the instruments, meters, electronic communication deice and domestic appliances, and possesses good conductivity, high elastic limit, proper toughness, high softening temp., good cold-working and hot-working property, good weldability, electroplatability, and corrosion resistance and oxidation resistance. Its material component composition: (wt%) 1.2-2.3% of Fe, 1.1-2.3% of Si, 0.6-1.6% of Al, 0.5-1.5% of Ni, 0.08-0.25% of P, 0.05-0.2% of Cr, 0.02-0.07% of V andthe rest is Cu. Its raw material and production costs are less than that of tin-phohsphor-bronze, so that said invention is an ideal substitute for tin-phosphor-bronze.

High-strenglth high-softening-temp. copper-base elastic material

Flavanonol reductase gene of violet wheat and its clone and use

Well

The present invention relates to water conservancy technology and aims at increasing the amount of underground water. By means of the flowability and penetrating of water in nature, partial of rain water is made to penetrate to and accumulate in underground water carrier. Specially, well with artificial filtering layer, wall of water penetrating material and lower water holes is drilled in properplace. The present invention can balance drought and flood and reduce flood harm.

Method for removing silt-deposit from bed of yellow river (suspended river)

The invention is all-new technical innovation and theoretical creative improvement in the field of river harnessing. Related to the great levee of Yellow River (a section of aboveground river) specifically, the invented method is to build one or several sluices on the levee and a section of canal for flushing out the silt and channelling water as well as providing an area for the diluvial deposit. The method uses the energy of running river water and difference of topographical elevations to flush out the silt on riverbed (in the section of aboveground river) to an appropriate place outside the great levee of Yellow River.

High softening temp. copper based elastic material

Mechanical and electric proportional combined control rear axle auxiliary steering system and automobile

The invention discloses a mechanical and electric proportional combined control rear axle auxiliary steering system which comprises a front axle, rear axles, a controller, an electric proportional valve, a priority valve and a gear pump, the front axle is provided with a first steering angle sensor, the rear axles comprise a plurality of axles, one axle is provided with a second steering angle sensor, and the other axle is provided with a third steering angle sensor. The controller is connected with the first rotation angle sensor, the second rotation angle sensor and the electric proportional valve, the electric proportional valve is connected with a steering flow cylinder of a rear axle, and the controller obtains the rotation angle difference value of the first rotation angle sensor and the second rotation angle sensor and controls the electric proportional valve according to a preset program. The electric proportional valve is provided with a load feedback LS port connected with an ...

Copper-iron-aluminium-phosphorus elastic material

PPT turns over a page blank pen

The utility model discloses a PPT turns over a page blank pen, including pen -holder, nib, the cap for brush, characterized by: installation one on & off switch and PPT turn over a page control key on the pen -holder. The beneficial effects are that: the blank pen can normal use its write the function on the basis of, possess wireless page flip simultaneously. Press down the on & off switch, then plug wireless receiver at the computer end, connect through turning over page control key with PPT, just can use PPT page flip. Realized one dual -purpose, convenient teaching has reached better teaching effects.

Braking energy recovery method and system and engineering vehicle

The invention discloses a braking energy recovery method and system and an engineering vehicle. According to the braking energy recovery method, double pedals are used for braking energy recovery. In the pure electric braking mode, the maximum allowable recharging power of a battery is monitored, the current motor rotating speed is synthesized, the current maximum recharging braking torque is judged, the current braking torque is output in an equal proportion according to the pedal depth and the maximum recharging braking torque, and energy recovery with the maximum efficiency is achieved; in the mechanical braking mode, the braking pressure of a mechanical braking hydraulic loop is monitored, and recharging braking torque is output in equal proportion; in a pure electric and mechanical combined braking mode, an electric braking pedal is responded preferentially, and a braking pressure signal is shielded. The braking energy recovery efficiency is higher, and meanwhile better control experience ...

COPPER-IRON-ALUMINIUM-PHOSPHORUS ELASTIC MATERIAL

This invention is a copper base alloy which is good elastic material. It is used for production of instrument and socket connector. The conductibility and processing are good. The cold processing productivity is over 90%, and it is suitable for heat rolling. As compared with tin-phosphor bronze, the cost of production is decreased by 25%. It is ideal substitute material of tin-phosphor bronze. The alloy component is 2-5% Fe, 1-4% Al, 0.3-0.7% P, 0.1-0.5% Cr and Cu.

Electrothermal, pulsive, magnetic, medicinal fumigating miniature instrument for recovery

A portable recovery instrument with electrothermal, pulse, magnetic and medicinally fumigating functions for cure more diseases structurally comprises magnetic ring having electromagnet in it, coil, coupled with electrothermal wire then connected with regulated powver supply and liquid medicine diffusing bag connected with medicine rubber bag. It may or may not be connected to external power supply. Its advantages include high comprehensive curative effect and easy carrying about.