63results about How to "No-bump" patented technology

The invention discloses a production process of a solid oxide fuel cell half cell, comprising the following steps: S1: preparing anode functional layer slurry and anode slurry; S2: applying the anode functional layer slurry on the surface of the carrier tape, and drying to obtain a Anode functional layer; S3: apply anode slurry on the surface of the anode functional layer, remove the carrier tape after drying, to obtain a green anode substrate; S4: sinter the green anode substrate for the first time to obtain an anode substrate; S5 : prepare an electrolyte film on the surface of the anode functional layer of the anode substrate; S6: sinter the anode substrate with the electrolyte film for the second time to obtain a solid oxide fuel cell half cell; the temperature of the second sintering is higher than that of the first sintering The sintering temperature is 25~150℃ higher. In the solid oxide fuel cell half-cell, through the processes of first sintering and second sintering, the shrinkage rates of the anode substrate and the electrolyte film are matched, and the flatness is improved. The invention also discloses a solid oxide fuel cell half cell.

The invention provides an angle valve as well as an angle valve manufacturing process and a positioning tool, and belongs to the technical field of valves. The angle valve manufacturing process solves the problems that an existing triangular valve manufacturing method is complex in process and is not environmentally-friendly, and surface consistency of the produced angle valve is relatively poor. The angle valve manufacturing process comprises the following steps: a, manufacturing an angle valve main body; b, manufacturing an angle valve joint; c, positioning the angle valve main body and the angle valve joint by laser welding, enabling the arc-shaped connecting surface of the angle valve joint to fit to the outer wall of the angle valve main body, integrally welding the angle valve main body and the angle valve joint inside the angle valve joint through laser welding, and injecting a laser beam from an inner hole of the angle valve joint; d, inspecting; e, assembling; and f, carrying out finished product inspection. The angle valve manufacturing process simplifies the process, improves producing and processing efficiency, and is more environmentally-friendly; and the outer surface of the manufactured valve body does not have a welding seam, so that the valve body is more flat and smooth, is better in consistency, and is better in mechanical property.

The invention discloses an automatic steel disc placing machine, which comprises a bracket, wherein the bracket is partitioned into three regions including a plastic absorption box accommodating region, a steel disc supply region and a steel disc fine positioning region in sequence; a guide rod which spans the three regions is arranged above the bracket; a sliding workbench is fixed on the guide rod through a linear bearing; and the sliding workbench is connected with an air cylinder which is fixed on the bracket and is used for driving the sliding workbench to move in a reciprocating way among the three regions along the guide rod. A steel disc is placed into a plastic absorption box, is accurately positioned secondly, and is placed into a die through a mechanical hand, and an entire process is performed automatically, so that labor cost is saved, the molding period is shortened, yield is increased, and the appearance quality of the steel disc is also ensured.

The invention relates to the aluminum electrolytic cell technical field, in particular relating to a protective cell-shutting method of an aluminum electrolytic cell. The method aims to solve the problems of cracking, deformation and doming up, etc. caused by an inner lining directly exposed in the air during the prior cell shutting, and comprises the following steps that: (1) part aluminum liquid inside an electrolytic cell is pumped out at first; (2) then, part electrolyte liquid inside the electrolytic cell is taken out; (3) an anode is put into the aluminum liquid and is raised after all aluminum liquid is pumped out, and thermocouples are distributed inside the electrolytic cell; (4) the surface of the anode is provided with an alumina heat-preservation material, and a feeding port and an aluminum outlet are sealed closely; moreover, a cell cover plate is covered; (5) a purifying smoke evacuation pipe is closed, and rockwool is used to cork up a side heat dissipation hole of a basin and to carry out bottom heat preservation; a factory building, a trench window and an air grid section are closed, and a window inside a closed workshop is closed; and (6) when temperature inside the electrolytic cell is lowered to normal temperature, cell shutting is completed. The protective cell-shutting method ensures reasonable gradient lowering of the temperature of an electrolytic cell inner lining, and reduces inner lining damage caused during cell shutting; meanwhile, the method has better anodic protection, strong commonality, simple operation and outstanding effects, and can continue to be used.

The invention belongs to the technical field of material separation, and discloses a fast and high-efficiency hydrocyclone, which includes a cyclone body, a flushing water distributor and a deflector, and the flushing water distributor and the deflector are respectively connected with the hydrocyclone on the cyclone body. The bottom covers are connected by welding, and the deflector is symmetrical to the center of the cylindrical cavity on the cyclone body and tangent to the bottom flow tube on the cyclone body. The material is fed in from the feed port and performs a spiral movement in the cyclone. When the particles move to the bottom of the cyclone, under the action of the upward flushing water, the fine particles are taken out and enter the internal cyclone. Under the action of the plate, the separated coarse particles are quickly diverted to the bottom flow port and discharged on the basis of the original rotary motion. The invention utilizes the principle of fluidization to strengthen the internal flow field effect of the hydrocyclone, reduces the amount of fines contained in the bottom flow, and greatly improves the separation efficiency of wide-grade materials; meanwhile, the residence time of coarse particles is reduced, and the processing capacity of the hydrocyclone is further improved .

This application relates to a relay coil processing system, which includes a vibrating plate, a feeding device, a winding device, a soldering device, a detection device and a guide rail. A transmission workpiece is slidably arranged on the guide rail. A placement slot, a cavity is provided in the transmission workpiece, and a plurality of correction mechanisms, a plurality of in-position mechanisms and a plurality of control mechanisms that are electrically connected to the plurality of in-position mechanisms are arranged in the cavity; the correction mechanism includes a rotation set on The connecting rod on the transmission workpiece, the end of the connecting rod close to the placement groove is rotatably connected with the correction wheel, the side of the placement groove close to the correction wheel communicates with the cavity, and the transmission workpiece is provided with a second drive assembly for driving the correction wheel to rotate, the transmission The workpiece is provided with a swing assembly for driving the correction wheel to approach and extend into the placement groove or to move away from the placement groove. The application has the effect that the pins on the skeleton can be calibrated by the correction wheel, and the correction can be stopped by a single correction wheel after the correction is completed.

The invention discloses a silvering solution pre-dissolving process. The process comprises the following steps: adding pure water into a dissolving tank, starting a heater arranged in the dissolving tank and a circulating pump arranged on the dissolving tank; then adding potassium cyanide into the dissolving tank; under the circulating stirring action of the circulating pump, adding silver cyanide after potassium cyanide is dissolved fully into water; injecting the dissolved liquid medicine into a storing tank through a liquid outlet pipeline, a valve and an extracting pump which are arranged on the dissolving tank; after the liquid medicine is injected into the storing tank, starting the heater and a liquid medicine circulating pump which are arranged in the storing tank; introducing the liquid medicine in the storing tank into a titrating tank, and then starting the circulating pump and the heater which are arranged in the titrating tank, then starting a titration metering pump so as to add the liquid medicine into a plating bath with an appointed flow rate due to the adoption of the titration metering pump. Due to the adoption of the process, the thickness of a silver layer on the surface of a silvered product can be uniform without salient points, and furthermore, a large amount of silvering raw materials can be saved.

The invention discloses a high-level flash cooler for wet-process phosphoric acid, which solves the problems of the existing high-level flash cooler that materials are easy to boil, easy to accumulate, difficult to clean and high investment cost. The technical solution includes a casing provided with a feed pipe, a discharge pipe and a gas outlet, the bottom surface of the casing is a slope, the feed pipe and the discharge pipe are located on the side wall of the casing at the lower end of the slope, the A partition is arranged between the feed pipe and the discharge pipe at the bottom of the housing, the rear end of the partition is fixed on the housing side wall at the lower end of the slope, and there is a gap between the front end and the housing side wall at the high end of the slope. The invention has extremely simple structure, easy operation, low production cost and investment cost, effectively reduces the occurrence of accumulation and blockage problems, high safety and reliability, and good flash cooling effect.

The invention discloses a processing technique for degrading water-permeable farmland covering film and its application, belongs to the technical field of agricultural plastic molding, and mainly solves the problems of low longitudinal tear strength and water impermeability of the polyester degradable film. Features: 1 part of potato flour, 1 part of calcium lactate, 50 parts of shell powder and other biological minerals, dried and crushed through a 140-mesh sieve, weighed and mixed to form an affinity water seepage additive; 1 part of the additive is mixed with PPC7 Parts, modified by twin-screw machine, pelletized into affinity water seepage masterbatch. According to PPC:PBAT:Masterbatch=700:300:25 ingredients, set the temperature of each zone of the blow molding machine in sequence at 130-155°C, inflation ratio 3-5:1, blank film thickness 0.007mm±0.003mm, No. 1 on both sides and No. 2 take-up rollers with a gap of 30mm to 35mm, install the segmented steel core polyurethane sand grain rough surface friction floating roller with an outer diameter of 80mm, a length of 80mm to 300mm, and a gap of about 1mm, and wear it on a rod with a gap of 1mm to 2mm, rolling and rolling friction The blank film is formed with a pore length of 20 μm to 200 μm and a pore density of 1 to 2 million pcs / m 2 Fully biodegradable permeable farmland cover film with criss-cross micropores.