152results about How to "Relieve deformation" patented technology

A semiconductor device connecting structure is provided for connecting a semiconductor IC to a substrate. A bonding layer is placed between the substrate and the semiconductor IC to accomplish adhesion therebetween. Sufficient heat and pressure are applied to the bonding layer to create spaces therein which deform during relative movement between the semiconductor IC and substrate thereby maintaining consistent electrical contact between the semiconductor contact bumps and electrodes on the substrate.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a high-power-capacity lithium-ion-battery anode material. The high-power-capacity lithium-ion-battery anode material comprises a solid electrolyte layer and alloy particles. The particles disperse in the solid electrolyte layer, and the diameters of the particles range from 5 nanometers to 300 nanometers. Compared with the prior art, the high-power-capacity lithium-ion-battery anode material has the advantages that the solid electrolyte layer is adopted to protect the alloy particles with the diameters of 5-300 nanometers, so that powder fall-off of the alloy particles caused by large volume change is avoided, and volume expansion of the material can be controlled to relieve the deformation of anode strips; the solid electrolytes can also play a role in conveying lithium ions, and can isolate the reaction of the alloy particles and electrolytic solutions to avoid consumption of the electrolytic solutions and to protect stability of SEI (solid electrolyte interface) films on the surfaces of the anode strips, so that service life of batteries can be prolonged. In addition, the invention further discloses a preparation method of the anode material.

The present invention relates to the field of food processing and more particularly relates to plant weight reducing enzymes and a preparation method thereof. The preparation method of the plant weight reducing enzymes comprises the following steps: raw materials are screened, the screened raw materials are crushed, the crushed raw materials are mixed with water, brown sugar, white sugar, apple vinegar and protease are added, the mixture is mixed evenly, and the mixture is subjected to a closed fermentation for 3-6 months; after the fermentation is finished, a solid-liquid separation is conducted to obtain a first fermentation liquid, the first fermentation liquid is purified to obtain a first product, fermentation residues are subjected to a second fermentation to obtain a second fermentation liquid, and the second fermentation liquid is purified to obtain a second product; the first product and the second product are mixed to obtain the plant weight reducing enzymes; and the raw materials are five color food with the efficacies of reducing weight. The provided preparation method of the plant weight reducing enzymes is simple and low in costs. The obtained plant weight reducing enzymes mainly contain substances with special biologically activity and consisting of amino acids, can comprehensively regulate human body to be well, enable the human body to be healthier, at the same time achieve a good effect of weight reducing, and are high in safety.

The invention discloses a transition roadway for managing bumping at bridge-head, which is characterized in that one end of each reinforced concrete hollow slab of which the width is same as that of the roadway is embedded into an abutment with fixed reinforcing steel bars, and the reinforced concrete hollow slabs at the positions at which the fixed reinforcing steel bars locate are buried below a bed course; the other ends of the reinforced concrete hollow slabs are arranged on end strutting pieces closing to the original embankment, so that the reinforced concrete hollow slabs are obliquely arranged between the abutment and the end strutting pieces to form a transition roadway; and stiffness of the reinforced concrete hollow slabs is consistent with that of the abutment. The transition roadway provided by the invention is used, so that settlement and abrupt change of the road surface nearby the bridge head are not caused by continuous settlement, thus fundamentally solving the problem of bumping at bridge-head resulting from the settlement and abrupt change of the road surface.

The invention relates to a sub-temperature carburizing heat treatment method for reducing heat treatment deformation of a thin-wall gear. The method comprises the following steps of S1, pre-sub-temperature normalizing; S2, slow speed shot blasting; S3, sub-temperature carburization, specifically, gradient heating is adopted to a sub-temperature carburizing temperature, a two-stage carburizing method is adopted in the sub-temperature carburizing process, the first stage is a strong carburizing stage, and the second stage is a diffusion stage; S4, gradient slow cooling quenching, specifically, firstly, gradient slow cooling is carried out on a carburized thin-wall gear forging to 840-860 DEG C, heat preservation is carried out for about 1h, then the slow cooling is continuously carried out to 815-825 DEG C, the heat preservation is carried out for about 1h, the carbon potential in the furnace is controlled to be 0.5-0.05%, and then quenching is carried out in a polyvinyl alcohol solution; and S5, low-temperature tempering. According to the method, the deformation degree of a gear workpiece can be greatly reduced, the production qualification rate can be obviously improved, meanwhile,crystal grains can be effectively refined, the hardness and strength of a gear can be improved, the service life of the gear can be obviously prolonged, and in addition, the refined crystal grains can obviously improve the carburizing speed, reduce the process time and reduce the energy consumption.

The invention relates to a step-by-step type arc-shaped nail bin which comprises a nail bin body, the nail bin body comprises a first closing part, the first closing part is used for being matched with a baffle extending into a cavity and conducting pressure suturing on the cavity, and the cross section of the part, matched with the first closing part, of the cavity is made to be in an arc shape during suturing. According to the scheme, when a cavity is sutured, a cavity part needing to form a channel is placed on the first closing part, and the baffle matched with the first closing part extends into the cavity of a patient, so that the first closing part and the baffle interact to apply pressure to suture cavity tissue, the cross section of the part, matched with the first closing part, of the cavity is in an arc shape, the defect that linear cutting and sewing are adopted for the cavity is overcome, the degree of stretching the cavity needing to form a channel to a flat shape in the sewing process is greatly reduced, the sewing effect is improved, and an annular channel capable of taking the separated tissues out of the cavity is formed in the cavity.

The invention relates to a charging method and equipment of an electric bicycle, in particular to an automatic time-control charging method and an intelligent charging device of the electric bicycle. The automatic time-control charging method comprises the following steps of: reading riding current and riding time from an input/output bus of an electric bicycle battery through utilizing a single chip system and performing the statistic, meanwhile, obtaining a temperature of the current environment and calculating the change of a battery capacity, and finally, calculating electric quantity needing to be supplemented; and through comprehensively considering factors including air temperature, energy conversion efficiency and the like, calculating the charging time by using the following formula: T=[1+(25-X)%]Q/(99%I), namely obtaining the current charging time. The intelligent charging device comprises a charger with a time-control relay; the electric bicycle is internally provided with the single chip system which is used for calculating the charging time of the electric bicycle; a signal input end of the single chip system is respectively connected with the input/output bus of the electric bicycle battery and a temperature probe through data lines; a signal output end of the single chip system is connected with the input/output bus of the electric bicycle battery and the temperature probe through the data lines of the charger; and the switching-on or switching-off of a working circuit of the charger is controlled through using the time-control relay.

The invention discloses a dustproof structure for an MEMS device and an MEMS microphone packaging structure. The dustproof structure for the MEMS device comprises a grid film and a carrier, wherein the grid membrane is provided with a fixed connection area, a buffer area and an acoustic transmission area, the buffer area surrounds the acoustic transmission area, the fixed connection area surroundsthe buffer area, the fixed connection area is located on the edge of the grid membrane, and a through hole penetrating through the grid membrane is formed in the buffer area; the carrier is providedwith a through opening, the carrier is connected to one side of the fixed connection area, and the position of the opening corresponds to the positions of the buffer area and the sound transmission area.

The invention relates to a high-temperature brazing connection method for graphite and stainless steel. The high-temperature brazing connection method for the graphite and the stainless steel comprises the steps of selecting amorphous TiZrNiCu foil brazing filler metal, a Ti foil, an amorphous BNi-2 brazing filler metal foil and an Ni foil as brazing materials; after cleaning the graphite, the stainless steel, the amorphous TiZrNiCu foil, the Ti foil, the amorphous BNi-2 foil and the Ni foil, forming a graphite/amorphous TiZrNiCu foil/Ti foil/amorphous BNi-2 foil/Ni foil/amorphous BNi-2 foil/stainless steel sandwich structure; and placing the structure in a vacuum furnace, increasing the temperature to 980 to 1080 DEG C at the speed of 5 to 8 DEG C/min, conducting heat preservation for 60 to 120 min, conducting brazing connection, and then conducting sectional heat preservation and slow cooling to the room temperature. The problems of serious mismatching and wettability of the thermal expansion coefficients of the graphite and the stainless steel are effectively solved, the thermal stress of a joint is greatly reduced, cracks are prevented from being generated in the joint area, and good connection of the graphite and the stainless steel is achieved.

The invention discloses a mold type lining and foam concrete combined supporting structure and a construction method. The mold type lining and foam concrete combined supporting structure comprises a mold body. Foam concrete is poured on the two sides of the mold body. The two side faces of the foam concrete are sealed through inverted buckles. One end of each inverted buckle is anchored inside a rock body, and I-steel is fixedly mounted at the other end of each inverted buckle. The foam concrete is sealed between the two inverted buckles through the I-steel. The mold body is divided into three sections. Two sections are mounted on the left side and the right side of a tunnel correspondingly, and the other section is mounted on the tunnel vault. The portion, on the tunnel vault, of the mold body and the portions, on the left side and the right side of the tunnel, of the mold body are fixedly connected through stirrups. Gaps between the stirrups and the mold body are filled with the foam concrete. Four automatic pressure relief valves are mounted at the tops and the bottoms of the portions, on the left side and the right side of the tunnel, of the mold body correspondingly, and an automatic pressure relief valve is mounted in the middle of the portion, on the tunnel vault, of the mold body. The mold type lining and foam concrete combined supporting structure is low in manufacturing cost, easy to construct and high in practicability and can better meet the safety requirements.

The invention provides a clamping mechanism and a turning machine tool, and relates to the technical field of machining equipment. The clamping mechanism provided by the invention comprises a vacuum pump, a first vacuum gauge, a main shaft and a clamping assembly, wherein the vacuum pump and the first vacuum gauge are both connected with the main shaft, and the main shaft is connected with the clamping assembly; and the clamping assembly comprises a clamping fixture, a location surface is formed on the clamping fixture, a plurality of vacuum holes are formed in the location surface, and the plurality of vacuum holes all communicate with the interior of the main shaft. The clamping mechanism provided by the invention is applied to a process of clamping a workpiece to alleviate the technical problems of deformation of the thin-walled workpiece and low location efficiency, which are possibly caused by a clamping mechanism in the prior art.