43results about How to "Reduce the difficulty of subsequent processing" patented technology

The invention provides a biometric feature recognition device and electronic equipment with the biometric feature recognition device. The biometric feature recognition device comprises a chip set, a dielectric cover plate which is placed on the chip set and a first wire set which is placed on the dielectric cover plate. The first wire set is connected with the chip set, and the first wire set provides pulse signals for a finger when the finger of a user makes contact with the biometric feature recognition device. The biometric feature recognition device has the advantages that integration density is high, and subsequent processing difficulty is low; the device can be manufactured to be of an ultrathin structure, so that the ornamental value is high; in addition, the inside of the biometric feature recognition device can be protected, and thus the degree of safety is high.

The invention discloses a catalyst for pyrolysis of oil shale. The catalyst is prepared from the following raw materials by weight percentage: 2-8% of a molecular sieve, 1-5% of activated clay, 10-60% of organic cobaltate, 5-20% of metal sulfide, 8-30% of glycerate, and 15-35% of paraffin; the organic cobaltate is one or more of cobalt acetate, cobalt oxalate, cobalt naphthenate and cobalt neocaprate; the metal sulfide is molybdenum sulfide and / or nickel sulfide. The invention further discloses a preparation method of the catalyst and a use method of the catalyst. According to the catalyst disclosed by the invention, the pyrolysis efficiency of the oil shale can be improved, the distribution of pyrolysis products of the oil shale is improved, more light products are produced, and components of gasoline and diesel oil can be separated through rectification. According to the preparation method and use method of the catalyst, which are disclosed by the invention, the catalytic pyrolysis and microwave heating are combined, so that the utilization efficiency of energy source can be improved, the composition and process performance of liquid fuel are improved, and the following processing difficulty is reduced.

The invention discloses a device for removing fish scales. By setting a first roller and a second roller, the second roller performs descale treatment on the lower surface of fish products while rotating, and the first motor passes through the first rotating shaft. Drive the first runner to rotate, and the first runner drives the second runner to rotate through the belt, so that the second runner drives the first roller to rotate through the second rotating shaft, so that the first roller rotates while the fish The fish scale treatment is carried out on the upper surface of fish products, and the descale treatment of fish products is completed through the cooperation of the first roller and the second roller, and in the process of removing fish scales, through the first press plate and the second press plate, The position of the fish product can be fixed, and the fish product will not collide with the first roller and the second roller due to other external forces such as gravity or centrifugal force, thereby avoiding damage to the surface of the fish product due to external force Cause damage or damage to internal organs, which reduces the difficulty of subsequent processing of fish products.

The invention discloses a split type bearing bush centrifugal casting method, which includes the steps of molten-state antifriction material preparation, bush billet treatment, centrifugal casting and subsequent machining. A bush billet is formed by fixing two fastened half bushes, and a bush billet treatment process includes the steps: machining annular grooves coaxial to the bush billet on two end faces of the bush billet, enabling each of two side walls of each annular groove to be low inside and high outside, arranging a spacer on a jointing face of the two half bushes which are integrally fastened, and enabling the spacer to extend along the axis of the bush billet to form a partition with the radial length along the bush billet not smaller than the radial thickness of a lining formed by pre-casting. Subsequent machining of the split type bearing bush centrifugal casting method only needs to turn two end faces of a bush body formed after casting, two split half bushes naturally form two bearing bushes without machining of a slotting machine or a sawing machine, Babbitt metal is low in internal stress generated by means of subsequent machining and is firm in jointing with the bush billet, bearing bush forming quality can be guaranteed, subsequent machining difficulty is low, workload is less and machining cost is low.

With increase of amount of filler in extruded materials, abrasion to a screw rod of a double-screw extruder is increasingly serious, and as a kneading block is a main component for shearing and extruding materials, it is very urgent to solve the problem about abrasion. The invention provides an abrasion-resistance screw rod of a double-screw extruder. The kneading block of the screw rod comprisesa steel base, silicon nitride ceramic bars and an alloy coating, concave pits are evenly distributed in the outer surface, parallel to the axis direction of the screw rod, of the steel base; the halfportions of the silicon nitride ceramic bars in the length direction are located in the concave pits, the other half portions of the silicon nitride ceramic bars in the length direction are exposed outside the surface of the steel bar, the alloy coating completely covers the surface of the steel base, and the top ends of the silicon nitride ceramic bars are exposed outside the alloy coating. According to the abrasion-resistance screw rod, the problem about abrasion to the screw rod of the double-screw extruder can be effectively solved.

The invention discloses an optimized forging process for GH6783 alloy rods. By improving the heating process, adopting stepwise temperature control and staged forging, the purpose of improving the plasticity of the alloy and making the forged β phase evenly distributed can be achieved. The technical scheme of the present invention is as follows: the forging process of the GH6783 alloy bar is as follows: ingot heating→first fire forging→intermediate fire forging→final fire forging→bar finishing→bar performance inspection→bar finishing→rod Material performance inspection; through the over-aging treatment between 820 ° C and 880 ° C during the heating process of the ingot, the plasticity of the GH6783 alloy steel ingot is improved, and the refinement and uniform distribution of the forged β phase are promoted by step temperature control forging. The advantages of the present invention are: firstly, through the overaging treatment at 820°C to 880°C, the plasticity of the alloy is greatly improved, and the difficulty of subsequent processing is reduced; secondly, the stepwise temperature-controlled forging is used to promote the continuous dissolution and precipitation of the β phase, Further make the β phase evenly and finely distributed.

The invention discloses a preparation method of an nickel-molybdenum intermediate alloy. The method comprises the following steps of a, taking 30%-60% of nickel and 40%-70% of molybdenum according tothe weight ratio; b, filling a crucible with a part of nickel, filling the crucible with carbon, then filling the crucible with the rest nickel, and filling an alloy bin with molybdenum, a small amount of the nickel-magnesium alloy and the carbon; c, vacuumizing the crucible to be less than or equal to 5 pa, carrying out heating and smelting, heating at the speed of 2-5 kw / 5 min to 25 kw when thetemperature is below 25kw, then heating at the speed of 5 kw / 10 min to 30kw; carrying out refining for 10 minutes, carrying out standing for 5 minutes until the air pressure in the crucible reaches 0.07 Mpa, adding molybdenum in the alloy bin into the crucible, raising the power to 20 kw, carrying out refining for 4 minutes and standing for 1 minute after the materials in the crucible are completely melted until the liquid surface is clarified, carrying out power failure, closing the valve and adding the nickel-magnesium alloy, carrying out heating after the nickel-magnesium alloy is added, pouring the mixture into a mold when the liquid surface is clarified and the temperature is proper, and the mixture is cooled for 20 minutes and discharged out of the crucible.

The invention discloses a preparation method of a nickel-manganese intermediate alloy. The preparation method comprises the following steps of a, 30%-60% of nickel and the balance manganese are takenaccording to the weight ratio; b, a part of the nickel is put into the bottom part of a crucible, then carbon is put into the crucible, the rest nickel is further put into the crucible, the manganeseis put into an alloy bin, and a small amount of nickel-magnesium alloy and the carbon are also put into the alloy bin; and c, when vacuumizing is carried out until the air pressure in the crucible issmaller than or equal to 5 pa, heating and smelting are started, heating power is increased to 25kw according to a heating method that the heating power is increased by 2-5kw every 5 minutes when theheating power is below 25kw, then the heating power is increased to 30kw according to a heating method that the heating power is increased by 5kw every 10 minutes, after materials in the crucible arecompletely melted until a liquid level is clarified, the materials are refined for 10 minutes and then left to stand for 5 minutes, power is cut off, a large valve is closed to charge argon until theair pressure in the crucible reaches 0.07Mpa, the manganese in the alloy bin is added into the crucible, the power is increased to 20kw, after the materials in the crucible are completely melted untilthe liquid level is clarified, the materials are refined for 4 minutes and left to stand for 1 minute, the power is cut off, the valve is closed, the nickel-magnesium alloy is added, and is heated after the nickel-magnesium alloy is added, when the liquid level clearing temperature is appropriate, a mixture is poured into a mold and cooled for 20 minutes, and the mixture is discharged out of themold.