5results about How to "Stable rate" patented technology

The invention provides an evaporation method and application thereof, and relates to the technical field of vacuum evaporation, the evaporation method comprises the following steps: preheating an evaporation boat, a tungsten mesh and a solid aluminum source arranged on the tungsten mesh; pre-melting treatment is conducted, the solid aluminum source is melted, and molten aluminum covering part of the surface of the tungsten net is formed; pre-evaporation treatment is conducted, the molten aluminum is evaporated, and an initial infiltration area is formed; in the primary wire feeding stage, aluminum wires are fed at the first wire feeding speed, molten aluminum obtained after the aluminum wires are molten is spread in the initial infiltration area till the tungsten mesh is completely infiltrated by the molten aluminum, and at least part of the tungsten mesh is consumed; in the secondary wire feeding stage, aluminum wires are fed at the second wire feeding speed, and the tungsten net is completely consumed; and an evaporation stage: evaporating an aluminum metal layer on the base film. According to the evaporation method provided by the invention, the spreading uniformity and evaporation stability of the molten aluminum are improved, and the technical problems of narrow liquid level, frequent splashing and non-uniform coating thickness caused by non-uniform heat distribution in the traditional process are solved.

The invention discloses an atomization rate adjusting method and an atomization device.The atomization rate adjusting method comprises the steps that the atomization rate is preset; based on a preset atomization rate, determining a waveform amplitude parameter of the driving signal and a waveform output time proportion parameter of the driving signal; determining a liquid flow velocity parameter matched with the waveform amplitude parameter and the waveform output time proportion parameter of the driving signal; and based on the waveform amplitude parameter, the waveform output time proportion parameter and the liquid flow velocity parameter of the driving signal, driving liquid supply and driving an atomization sheet to work. The invention further provides an atomization device. The atomization piece is provided with holes. The driving circuit is electrically connected with the atomization sheet and is used for implementing the atomization rate adjusting method; a liquid cavity is formed between the mounting seat and the atomizing sheet; the barrel is connected to the mounting base, an atomization cavity is formed in the barrel, and the atomization piece is used for atomizing liquid in the liquid cavity.

This invention provides an abrasive pad and a polishing method. The abrasive pad includes an abrasive layer, wherein, in a dynamic viscoelasticity measurement performed at a frequency of 1.6 Hz, the abrasive layer does not have a peak temperature of loss coefficient (tanδ) in the temperature range of 15°C to 120°C, and the rate of change of tanδ value in the temperature range of 15°C to 120°C, calculated according to the following formula, is less than 20%, tanδ value change rate = |(maximum value of tanδ in the temperature range of 15°C to 120°C) - (minimum value of tanδ in the temperature range of 15°C to 120°C)| / (maximum value of tanδ in the temperature range of 15°C to 120°C) × 100%.

The present invention discloses a preparation method for iron phosphate powder by microporous filtration and concentration and a preparation device thereof. The preparation method includes: putting raw materials into a reactor to react for nucleation, a mother liquor generated after raw materials reaction entering the filter concentrator, and controlling and starting a stirring shaft for driving an upper stirring blade and a lower stirring blade to rotate for grinding and scaling; when a mother solution level exceeds an upper liquid inlet end of lower microporous filtration tube groups, controlling and starting a filtrate valve of a filtrate tube of the lower microporous filtration tube groups, and when the mother solution level exceeds the upper liquid inlet end of upper microporous filtration tube groups, controlling and starting a filtrate valve of a filtrate tube of the upper microporous filtration tube groups. The present invention has small instantaneous flow fluctuation, has the characteristic of good accuracy of a reaction system, and integrates a filtration system and an intermediate tank to effectively reduce the volume and shorten the reaction process.

The invention discloses a connecting fastener fatigue test device, and relates to the technical field of fastener fatigue test, the connecting fastener fatigue test device comprises a loading frame, a rack slidably mounted along the width direction of the top end of the loading frame, and a long-axis linear driver arranged on one side of the top end of the loading frame and used for driving the rack to slide; a lifting device is installed at the bottom end of the rack, a wedge groove type single-cylinder multi-piece co-clamping assembly used for clamping at least two U-shaped bolts is installed at the driving end of the lifting device, at least two vertical plates are installed on the outer wall of one side of the carrying frame, and a double-rocker-arm synchronous bending assembly is installed on the outer wall of the side, close to the rack, of each vertical plate. Through stable clamping of multi-piece co-clamping, accurate height and distance adjustment, self-locking clamping and synchronous loading of double rocker arms, the problem of consistency of positioning, clamping and loading in a U-shaped bolt bending fatigue test is effectively solved, so that the accuracy, repeatability and operation efficiency of the U-shaped bolt bending fatigue test are improved.