54results about How to "Improve workmanship" patented technology

A hybrid fastening system comprising a female fastener component, i.e., swage collar, fabricated from a titanium or titanium-alloy material, preferably Ti-3A1-2.5V, and a mating titanium or titanium-alloy material male fastener component, i.e., threaded pin, each preferably pre-coated with an organic coating material comprising an organic, phenolic resin. The threaded pin component is installed through two or more structural components to be joined. The swage collar component is then deformed or swaged onto the threads of the pre-coated threaded pin component to achieve the same, if not improved, fastener / joint performance characteristics of existing lockbolt systems using aluminum-alloy material swage collar components.

The invention discloses a cement concrete curing method which is characterized in that: concrete shrinkage reducing solution is directly sprayed or coated on the concrete surface during curing process; when no liquid shrinkage reducing solution remains on the concrete surface, concrete curing agent is sprayed on the concrete surface. In the method, the shrinkage reducing solution is firstly sprayed, and then the concrete curing agent is sprayed, therefore the efficacy loss situation caused by mutual interference of the shrinkage reducing agent and curing agent is avoided, the volatilization of shrinkage reducing agent and the water dispersion of concrete interior are prevented after the curing agent is filmed, and the concrete shrinkage and crack prevention effects are further reinforced; compared with prior art, the cement concrete curing method effectively prevents the concrete shrinkage and crack, reinforces the cement hydration effect and improves the curing effect.

The invention belongs to the technical field of shield cutters, and particularly relates to a wear-resistant alloy material and a plasma surfacing welding process of a shield tunneling machine wear-resistant cutter ring. The problems of poor wear resistance, low production efficiency and poor quality stability of a shield tunneling machine cutter ring in the prior art are solved. According to thetechnical scheme, the wear-resistant alloy material comprises NiCrBSi alloy and spherical cast tungsten carbide, wherein the mass percentage of the NiCrBSi alloy is 35%-45%, the mass percentage of thespherical cast tungsten carbide is 55%-65%, the plasma surfacing welding process comprises a. cleaning treatment, b. preheating treatment, c. adjusting of surfacing welding process parameters of a welding machine, d. positioning of a welding gun, e. surfacing starting, and f. heat preservation and cooling. The wear resistance of the shield tunneling machine cutter ring is improved, the service life of the cutter ring is prolonged, the consumption of the cutter ring and the workload of equipment maintenance are reduced, and the unit excavation cost is reduced. The material is suitable for manufacturing the shield tunneling machine wear-resistant cutter ring.

The invention discloses a reaction cavity. The reaction cavity comprises a closed cavity body and a flat plate heater assembly, wherein the cavity body consists of a lower spacer, a side wall and an upper cover plate, the flat plate heater assembly is arranged in the cavity body, a flow equalizing plate is arranged between the upper cover plate and the flat plate heater assembly, a flow equalizing cavity is formed between the flow equalizing plate and the upper cover plate, an air inlet assembly is arranged on the upper cover plate, an air outlet of the air inlet assembly is communicated with the flow equalizing cavity, and an air flow baffle is arranged in a position which is of a certain distance from the air outlet of the air inlet assembly. The technical gas of the reaction cavity is equalized twice before entering the reaction cavity. The reaction cavity has the advantage that the technical gas enters at a high speed and is evenly distributed. The technical quality is improved, and the film forming quality of a semiconductor material is improved. As the technical gas directly enters the reaction cavity from the top of the cavity, the speed that the technical gas enters the reaction cavity is increased.

The invention discloses a wire holding and bending setter, which comprises an operation platform, a fixed bracket, a right groove, a left groove, holding and moving wheels, a top groove, a top moving wheel, a setting wheel, an air cylinder and a control switch, wherein the fixed bracket is arranged at the inner side of one edge of the upper part of the operation platform; a concave arc wire protection surface is arranged at the inner side of the fixed bracket; the longitudinal top groove is arranged in the center of the inner side of the fixed bracket; a top moving arm is arranged at the lower of the top groove and is sequentially provided with the top moving wheel and the setting wheel; transverse left groove and right groove are formed in the left side and the right side, close to the fixed bracket, of the top groove respectively; a left moving arm and a right moving arm are arranged at the lower parts of the left groove and the right groove respectively; the holding and moving wheels are arranged on the left moving arm and the right moving arm respectively; the air cylinder provides the left moving arm, the right moving arm and the top moving arm with power; and the moving arms are controlled to move through the control switch. The wire holding and bending setter is simple in operation and high in work efficiency, and can be quickly completed by one person at present from 2-3 persons in the past, and the process quality of a product is good through perfect cooperation of the holding and moving wheels, the top moving wheel and the setting wheel.

The invention discloses precision machining technological equipment for a blade of an aviation engine. The precision machining technological equipment comprises a positioning device, a clamping device and an auxiliary supporting device, wherein the positioning device, the clamping device and the auxiliary supporting device are fixed on a foundation table top, the positioning device is used for positioning of a curved surface of a blade body, the clamping device is used for clamping the blade body, the auxiliary supporting device is fixed outside the positioning device and the clamping device, a working head of the auxiliary supporting device directly contacts a tenon portion of the blade, and a master controller controls each hydraulic cylinder on a tool through a control loop. According to the precision machining technological equipment, the blade body provided with a thin wall and the curved surface is directly positioned and clamped for machining the tenon, and therefore continuous mechanical operation and machining can be achieved in production of the blade, and working efficiency and machining quality can be improved.

The invention discloses a material surface film coating device. The material surface film coating device comprises a base seat, the base seat is provided with a transmission rack in an erected manner,the transmission rack is synchronously provided with a first transmission mechanism, the first transmission mechanism is provided with a second transmission mechanism in an erected manner, the firsttransmission mechanism comprises a transmission disc, the rear side of the transmission disc is provided with a first motor, the first motor is installed on the transmission rack and provided with a transmission gear through a first rotating shaft, the rear side wall of the transmission disc is provided with a driven gear, the second transmission mechanism comprises a lifting groove, and the lifting groove is installed on the front plane of the transmission disc. According to the material surface film coating device, by means of mutual coordination of helical gear transmission and screw threadtransmission, operations adapting to materials of different sizes can be achieved, relative to process production, the effect of cutting lines rapidly is achieved, and the operation process is greatly improved.

The invention discloses an inter-chip conductive bridge structure and a manufacturing method thereof. An opening can be etched in at least one of a to-be-etched layer and a layer structure in a bridging area, a curved surface is arranged below the opening, the curved surface at least comprises a pair of surfaces with two non-right-angle adjacent edges, preferably, the curved surface is a surface with fillets, the opening can prevent the photoresist in the opening from being thrown out, and when the photoresist is coated and developed, the opening can ensure that the photoresist on the top surface of the layer structure is effectively reserved with proper thickness and width and better morphology, so that when the photoresist layer is used as a mask to etch the layer to be etched to form a conductive bridge, the photoresist can effectively protect the layer structure and the to-be-etched layer on the top surface of the layer structure, so that the required shape and width of the conductive bridge are achieved, the performance is reliable, short circuit or open circuit of the formed conductive bridge is avoided, and the product manufacturing yield and the test accuracy are further improved.

The invention relates to an adjustable cable bending spanner which effectively resolves the problem that the part needing bending is not easy to operate in the installation process of large cables in the prior art. According to the scheme, the adjustable cable bending spanner comprises an L-shaped spanner, wherein the L-shaped spanner is composed of a handle and an action rod at the front end of the handle, a plurality of threaded holes are formed in the axial direction of the inner wall of the handle of the L-shaped spanner at intervals, the hole centers of the threaded holes and the axis of the action rod are on the same horizontal plane, and adjustable bearing levers are screwed in the threaded holes. The adjustable cable bending spanner can relieve the fatigue degree of workers, relieve labor intensity, increase the safety coefficient in the construction process, reduce the number of workers taking part in the work, be operated only by one person, and improve the cable engineering process quality.

The invention discloses a circular leakage-proof drum which comprises a rack and a hollow drum body, wherein a gear wheel and a secondary disc are arranged at the two ends of the drum body respectively; the rack is provided with a retarding mechanism connected with the gear wheel; the gear wheel is connected with a first rotary shaft; the secondary disc is connected with a second rotary shaft; a bearing seat is arranged at the two ends of the rack respectively; the first rotary shaft and the second rotary shaft are connected with the bearing seats respectively; a through hole is formed in the first rotary shaft along the axis, and the end of the first rotary shaft connected with the gear wheel is communicated with a drum inner cavity; a water inlet pipe and a water outlet pipe are arranged in the through hole; a sealing component is arranged at the end of the first rotary shaft communicated with the drum inner cavity; and the water inlet pipe and the water outlet pipe pass through the sealing component respectively and stretch into the drum inner cavity. The circular leakage-proof drum disclosed by the invention can detect the treating fluid in real time while collecting the treating fluid leaking from the drum to prevent pollution.

The invention discloses an ion implantation system. The system comprises an ion source and an extractor, wherein a mass analyzing magnet, a correcting magnet and a workpiece scanning device are arranged on the transmission path of the ion beams in sequence. The system also comprises a scanning magnet arranged on the upper stream of the correcting magnet and a beam current measuring device arranged in the implantation position, wherein the scanning magnet is used for scanning the passing ion beams so as to ensure distribution of the ion beams which are arranged in the implantation position and in the preset energy range in the ion beam scanning direction to cover the workpiece; and the beam current measuring device is used for measuring the intensity and angle distribution of the beam current in the scanning direction of the ion beams. The invention also discloses an ion implantation method realized by the ion implantation system. The system and the method have the following positive effects: accurate control of the implantation angle uniformity and implantation intensity uniformity of the ion beams can be realized; the production cost is lowered; and the process flows are simplified.

The invention relates to a steel pipe punching and shearing machine which is particularly suitable for machining the end parts of steel pipes in T-shaped connectors of steel pipe railings of ladder platforms for electric power and constructional engineering construction, and belongs to the technical field of mechanical equipment. The steel pipe punching and shearing machine comprises a support auxiliary system (1), a locking device (2), a knife rest device (3), a transmission device (4) and a pressure rod (5) and can shear the side pipe wall of a pipe (7); as an improvement, the steel pipe punching and shearing machine further comprises a shifting block device (6); a cam plate (403) is adjusted into an outer cam through a first shifting block device (601), the pressure rod (5) is pressed down so as to drive the cam plate (403) to rotate, and a transmission plate (401) and a transmission plate (402) are driven to move through a movable shaft (409) so as to drive a sliding knife rest (302) to move downwards to complete shearing of the pipe wall at the lower side of the pipe (7); and the pressure rod (5) is reset, the cam plate (403) is adjusted into an inner cam through a second shifting block device (602), the pressure rod (5) is pressed down, and the pipe wall on the upper side of the pipe (7) is sheared. According to the steel pipe punching and shearing machine, the punching and shearing operation of the end parts of the steel pipes with various pipe diameters can be completed, machining and forming can be realized at a time, and therefore the pairing efficiency and the welding quality of the T-shaped connectors of the steel pipe railings can be improved.

The invention discloses a cement concrete curing method which is characterized in that: concrete shrinkage reducing solution is directly sprayed or coated on the concrete surface during curing process; when no liquid shrinkage reducing solution remains on the concrete surface, concrete curing agent is sprayed on the concrete surface. In the method, the shrinkage reducing solution is firstly sprayed, and then the concrete curing agent is sprayed, therefore the efficacy loss situation caused by mutual interference of the shrinkage reducing agent and curing agent is avoided, the volatilization of shrinkage reducing agent and the water dispersion of concrete interior are prevented after the curing agent is filmed, and the concrete shrinkage and crack prevention effects are further reinforced;compared with prior art, the cement concrete curing method effectively prevents the concrete shrinkage and crack, reinforces the cement hydration effect and improves the curing effect.