117results about How to "Easy to weld and fix" patented technology

The invention relates to a power battery water-cooling plate for brazing. The power battery water-cooling plate comprises an upper plate and a lower plate, wherein the upper plate is buckled with thelower plate, the upper plate and the lower plate are fixed by brazing, a runner is formed between the upper plate and the lower plate and is used for a cooling liquid to flow, the runner comprises a liquid inlet runner and a liquid return runner which are arranged in parallel, an inlet and an outlet of the runner are arranged in parallel, a liquid inlet is formed in a position, corresponding to the inlet, of the upper plate, and a liquid outlet is formed in a position, corresponding to the outlet, of the upper plate. The power battery water-cooling plate is formed by only combining the upper plate and the lower plate, is simple in structure, good in pressure resistance, light in weight and high in heat exchange efficiency and is difficult to leak; by arranging the liquid inlet runner and the liquid outlet runner in parallel, the thermal equalization performance of a battery module is greatly improved; and the upper plate and the lower plate are fixed by brazing, the production efficiency is high, the weight of a battery module water-cooling system is reduced, the heat exchange capability of the water-cooling plate is improved, good temperature uniformity is achieved, and the powerbattery water-cooling plate is suitable for rapid production on a large scale.

The invention discloses a combined tower crane foundation and a construction method thereof, relates to the technical field of auxiliary equipment for fixing tower cranes, and aims at the problem that a certain limitation exists in tower crane selection during a construction process due to the fact that an existing tower crane foundation is capable of fixing tower cranes of only one type. The compound tower crane foundation comprises a concrete foundation and two sets of embedded assemblies, wherein the two sets of embedded assemblies are anchored in the concrete foundation, and are respectively an embedded assembly I corresponding to a tower crane I, and an embedded assembly corresponding to a tower crane II; each set of embedded assemblies comprises four embedded parts which can be connected with four supporting foot bolts of a tower body of the corresponding tower crane, and the embedded parts of the two sets of embedded assemblies are arranged in a staggered manner. The construction method comprises the following steps: erecting a reinforcement cage and a template in the concrete foundation to be poured, and mounting and fixedly connecting the embedded assembly I and embedded bolts in the reinforcement cage; connecting the four embedded parts of the embedded assembly II onto a planar positioning frame and placing the planar positioning frame into the reinforcement cage, and enabling the embedded parts of the two sets of embedded assemblies to be arranged in a staggered manner; pouring the concrete, and after the concrete reaches strength of the design requirement, dismantling the planar positioning frame.

The invention discloses an assembling device with a clamping and overturning structure for electronic part machining, and relates to the technical field of electronic part machining. The assembling device comprises a workbench, a clamping and overturning mechanism and a welding and fixing mechanism, wherein machine frames are fixed on the two sides of the upper part of the workbench, a top plate is fixed on the upper sides of the machine frames, an air cylinder is arranged below the middle of the top plate, a piston rod is arranged on the lower side of the air cylinder, a lifting plate is arranged below the piston rod, and side plates are fixed on the two sides of the lower part of the lifting plate. The assembling device has the beneficial effects that the clamping and overturning mechanism is arranged, the positions of clamping plates can be conveniently adjusted in a telescopic mode through a hydraulic telescopic rod, so that the two sets of symmetrically-arranged clamping plates can clamp and fix an electronic part main body; and the hydraulic telescopic rod, the clamping plates and the electronic part main body can be conveniently driven to rotate through a rotating motor anda rotating shaft, so that the overturning of the electronic part main body is conveniently realized, and the upper side and the lower side of the electronic part main body can be conveniently assembled.

The invention discloses a method for rapidly installing a steelmaking diffusing tower in a narrow area. The method includes the steps of dividing a main pipe into three branch pipes, arranging an operating platform at the upper end of each branch pipe, and independently installing the three branch pipes. The method has the advantages that the main pipe of the diffusion tower is divided into the three branch pipes to be respectively lifted, the lifting requirement for a crane is reduced, the length of the main pipe is shortened in a converted mode, and therefore the diffusion tower can be installed in the narrow area; the operating platforms are arranged below the connecting positions of the three branches, and therefore convenience is brought to welding fixation between the branch pipes.

The invention relates to a packaging method for bonding-wire-free high-color-rendering-index LED lamp filaments. The packaging method comprises the steps of manufacturing a small-sized packaging body; coating the surface, except a welding electrode surface, of a flip chip with fluorescent glue only containing red fluorescent powder; drawing multiple mutually-disconnected connecting circuits on a thin-strip-shaped substrate, wherein each connecting circuit comprises two conductive bonding pads, and the two conductive bonding pads are connected through a conductive circuit; arranging the small-sized packaging body on the substrate circuit in an eutectic welding manner; enabling welding electrodes to be welded with the conducive bonding pads on the two adjacent connecting circuits to enable the adjacent two connecting circuits to be conducted in sequence; and coating the front surface and the back surface of the thin-strip-shaped substrate with the fluorescent glue containing green or yellow green fluorescent powder to obtain the bonding-wire-free high-color-rendering-index LED lamp filaments. The problem of partial spectrum missing and excitation efficiency decline caused by the reason that the light emitted by green or yellow or other short-wave fluorescent powder is re-excited is solved, so that the purpose of increasing the color rendering index and lowering the fluorescent powder dosage is realized.

The invention relates to a digital display pressure sensor adopting a steel wire to position a rotating angle. The digital display pressure sensor comprises a display panel; an outer tube is arranged below the display panel; a side surface of the outer tube is provided with an electrical interface; an elastic body joint is arranged at the lower part of the outer tube; the upper surface of the elastic body joint is provided with a circular groove; an arc-shaped steel wire bar is arranged in the circular groove; the arc-shaped steel wire bar is located at the inner circular arc edge of the circular groove; the radius of the circular arc of the arc-shaped steel wire bar is identical to the radius of the circumferential periphery of the circular groove; and the arc-shaped steel wire bar is fixed to the bottom of the circular groove. The arc-shaped steel wire bar of the digital display pressure sensor has little possibility of falling off. The digital display pressure sensor has the advantages of long service life and flexible rotation.

The invention discloses an assembly method for end covers of a gas-liquid separator or oil-gas separator, and relates to the technical field of air conditioner part assembly. The assembly method comprises the following steps: one of the end covers is connected with brackets by adopting electric resistance welding, the end cover is fixed with a device body in a welding manner by adopting CO2 protective welding, and finally the other end cover is welded at the other end of the device body by adopting the same method, so as to complete the disassembly of the end covers and refrigeration equipment. According to the assembly method for the end covers of the gas-liquid separator or oil-gas separator, the fixation between the end covers and the brackets is convenient, the assembly difficulty is reduced, the rejection rate is low, the welding time is short, and the positioning precision is high.