50results about How to "Even temperature inside and outside" patented technology

A granular material vibrating cooler comprises a ventilating mechanism, wherein a material cooling chamber and a vibrating mechanism are fixedly mounted on the a base, a material inlet and an air outlet are arranged on the upper portion of the material cooling chamber, and a material outlet is arranged on the lower portion, air inlets are evenly arranged on two corresponding lateral wall of the material cooling chamber, the air inlet is connected with an air inlet pipe, the ventilating mechanism which is mounted in the material cooling chamber is provided with a plate-frame skeleton and a certain amount of air grooves. An opening of the air groove is arranged downwards, the air grooves which have at least two layers are alternately arrayed in parallel and penetrated through and fixed on the plate-frame skeleton, two ends of the air groove are positively faced to the air inlets and communicated with the air inlets. The plate-frame skeleton is connected with the ventilating mechanism by penetrating the two lateral wall of the material cooling chamber through a connecting piece. The granular material vibrating cooler adopts the mode that cold air blast is combined with vibration, which has a good cooling effect on high temperature material, in particular to composite fertilizer which is being cooled. The invention cools completely, which can not being hardened, and is benefit to popularization and application.

The invention discloses a heat treatment process for improving the spheroidized structure of a large-sized die flat steel forged material. The purpose is to improve the spheroidized microstructure of the forged material. The process combination of post-forging red sending annealing material waiting+superfine treatment+isothermal spheroidizing annealing treatment is designed. Precipitation of secondary net carbide can be reduced through post-forging red sending annealing material waiting, and preparation is made for subsequent superfine treatment and isothermal spheroidizing annealing. During superfine treatment, normalizing heating adopts one time of preheating, complete burning of steel is ensured, inner and outer temperatures are uniform, normalizing cooling adopts water and air alternate cooling, cooling intensity is improved, thus coarse grains produced by high-temperature forging are refined, the net carbide structure is eliminated, and then small and uniform globular pearlites and a few of dispersively distributed granular carbide are obtained through isothermal spheroidizing annealing. The heat treatment process has the following beneficial effects that with the adoption of the treatment process, the coarse structure of the steel is eliminated, structure uniformity is improved, the carbide level is improved, and the microstructure reaches the AS1-AS4 level.

The invention relates to a preparation method of a tantalum-silicon alloy sputtering target material. The preparation method comprises the following steps of (1) uniformly mixing tantalum powder and silicon powder; (2) loading into a mold and sealing; (3) carrying out hot pressed sintering treatment on the sealed mold at 1130-1170 DEG C so as to obtain a tantalum-silicon alloy sputtering target crude product; and (4) machining to obtain the tantalum-silicon alloy sputtering target material. According to the preparation method, the tantalum-silicon alloy sputtering target material with the purity and density meeting the requirements can be prepared, the density reaches 99 percent or above, energy consumption and cost can be reduced, and the preparation method is suitable for large-scale popularization.

The invention discloses a processing technology for the microwave heat penetration of pseudosciaena crocea richardson, and belongs to the field of the processing of marine products. The technology comprises the following steps of: injecting seasoning liquid into preprocessed pseudosciaena crocea richardson, preheating the pseudosciaena crocea richardson by using microwaves of 2,450 MHz, performing microwave curing on the preheated pseudosciaena crocea richardson, sealing, freezing and storing. In the technology, the pseudosciaena crocea richardson is subjected to microwave heat penetration stage by stage, namely the processed pseudosciaena crocea richardson is subjected to first microwave preheating and second microwave curing, the two-time penetration time of fish flesh does not exceed 25 minutes, and the curing time of the fish flesh is shortened greatly compared with the conventional cooking time (about 70 minutes), so that the nutritional ingredients of the pseudosciaena crocea richardson are kept effectively, the phenomenon of burnt or half-cooked fish flesh is avoided, and the technical problems of continuous processing of processed goods of the pseudosciaena crocea richardson and the like are solved.

The invention relates to a preparation method of a reinforced mesh of a glass grinding wheel for a gasket. The method reinforced mesh is formed by drawing, returning, warping and weaving a glass raw material formed by mixing SiO2 (Silicon Dioxide), Al2O3 (Aluminum Oxide), CaO (Calcium Oxide), MgO (Magnesium Oxide), B2O3 (Boron Oxide), K2O (Potassium Oxide), Na2O (Sodium Oxide) in an alkali-free tank furnace, and then processing a coating, weft-finishing, slicing, drying and resin curing. The preparation method has the advantages of simpleness and easy operation; furthermore, the reinforced mesh of the glass grinding wheel for the gasket has good rigidity and flatness, a slicing grinding wheel can be ensured to have good end face run-out, and the cost of the gasket can be greatly reduced because the cost is about 25% of a PTFE mesh; furthermore, the reinforced mesh is thin in thickness, uniform grinding holes can realize isolation and heat transfer, and the uniformity of the inner and outer temperature can be realized when the grinding wheel is sintered.

A carbonitriding method for thin-walled steel parts comprises the steps of carbonitriding, quenching and tempering. Specifically, as for the step of carbonitriding, adopted atmosphere includes propane, methyl alcohol and ammonia gas, the adopted carbonitriding carbon potential is 1.06+/-0.03%, the adopted carbonitriding temperature is 870+/-5 DEG C, and the adopted carbonitriding time is 300+/-5 min. By means of the carbonitriding method for the thin-walled steel parts, the performance of the thin-walled steel parts can be improved, and the process cost is reduced.

The invention provides an induction quenching process for hardening an alloy cast iron camshaft by using compressed air, which comprises the following steps: S1, preheating is carried out: the camshaft is heated to 180-210 DEG C in an induction manner in a first stage, heating is suspended for 2-5 seconds, in a second stage, after the camshaft is inductively heated to 550-600 DEG C, heating is suspended for 2-5 seconds, and in a third stage, after the camshaft is inductively heated to 810-850 DEG C, heating is suspended for 2-5 seconds, wherein the heating rates of the three stages are all 40-50 DEG C/s; S2, heating to a quenching temperature is carried out: induction heating is carried out on the camshaft preheated in the step S1 to 900-940 DEG C at a heating rate of 40-50 DEG C/s; S3, quenching is conducted, specifically, compressed air with the pressure of 0.4-0.5 MPa is adopted as a quenching medium to quench the camshaft, and the camshaft is cooled to 250-300 DEG C; and S4, afterheat tempering is carried out. The alloy cast iron camshaft product quenched by using the process method disclosed by the invention does not crack in the quenching process, and the hardness index of the quenched alloy cast iron camshaft product can meet the technical requirements, so that the rejection rate of the product is reduced, and the production cost is greatly saved.

The invention relates to the technical field of double entry pumps, in particular to an efficient and wear-resisting double entry pump impeller and a preparation method thereof. A wear-resisting layercomprises, by weight, 20-40 parts of modified natural fibers, 40-60 parts of modified filler, 1-2 parts of a surfactant, 1.2-2 parts of a dispersing agent, 0.6-1.2 parts of nickel powder and 40-50 parts of polyvinylpyrrolidone. Thus, in the efficient and wear-resisting double entry pump impeller and the preparation method thereof, linear cellulose is wound around the peripheral sides of the natural fibers, the strength of the natural fibers can be improved through the winding manner, and the firmness of graphene on the outer portions of the fibers can be improved; meanwhile, one end of the cellulose can be inserted into a graphene flake layer, the adhesion amount of graphene matter on the fibers can be improved, and therefore the steadiness and reliability of the wear-resisting layer canbe enhanced; and slurry of the prepared wear-resisting layer is uniform and stable through the good mixing dispersity of the modified high-stability and high-reliability fibers.

The invention provides microwave sterilizing and drying equipment and a microwave sterilizing and drying method. The microwave sterilizing and drying equipment comprises a belt conveyor, a conveying tunnel, a microwave generator, a hot steam generator and an air heater, wherein a conveying belt of the belt conveyor is provided with air vents and is arranged in the conveying tunnel in a penetrating manner; the microwave generator is arranged inside the conveying tunnel; a steam outlet of the hot steam generator is communicated with the conveying tunnel; an air outlet of the air heater is communicated with the conveying tunnel; and the steam outlet and the air outlet are sequentially distributed in the conveying direction of the belt conveyor. A sterilizing effect and a drying effect are optimized by virtue of the microwave sterilizing and drying equipment, and the drying efficiency is improved.

The invention belongs to the technical field of waste cracking, and particularly relates to a pretreatment process and device for industrial continuous waste tire cracking production. The process canrealize the whole tire automatic feeding of waste tires; during the feeding, the whole tire cleaning, preheating and drying can be realized; the device consists of an impurity removal device, a cleaning device, a water sealing feeding device, a drying device and the like; impurities can be prevented from entering the subsequent cracking process along with the whole tire; meanwhile, the sealing ofthe feeding device is realized; the better connection with the cracking device can be realized; the weight of the sealing structure is reduced; meanwhile, the preheated whole tire enters the crackingprocess, so that the temperature difference can be reduced; the cracking efficiency is improved.

The invention relates to a hot processing technology for an automobile hub. The hot processing technology comprises the following steps that firstly, the formed hub is fed into a solid solution furnace to be heated to 450-550 DEG C in 35-45 minutes, and the temperature is kept for 90-135 minutes; secondly, the hub obtained through solution treatment in the first step is immersed into a 65-75 DEG C cooling medium to be quenched for 180-240 seconds; thirdly, the quenched hub is subjected to first-stage aging treatment and second-stage aging treatment sequentially, the temperature of first-stage aging treatment is 120-125 DEG C, the time of first-stage aging treatment is 75-90 minutes, the temperature of second-stage aging treatment is 175-185 DEG C, and the time of second-stage aging treatment is 120-135 minutes; and fourthly, the hub obtained through aging treatment in the third step is taken out to be subjected to natural cooling. According to the hot processing technology, inner stress of the hub can be reduced effectively, and the hardness, toughness, tensile strength, compressive strength and other properties are improved.

The invention discloses an aluminum profile extrusion forming device which comprises a machining platform. An extrusion generation cavity with a rightward opening is formed in the machining platform, a transition opening is formed in the left end of the extrusion generation cavity in a communicating manner, and an aluminum profile outlet is formed in the left side of the transition opening; a die containing cavity used for containing an aluminum profile extrusion forming die is formed between the aluminum profile outlet and the transition opening, an opening of the die containing cavity faces upwards, and a heating chamber is arranged in the arc-shaped inner wall, close to the left end wall, of the peripheral side of the extrusion generation cavity; and a heat exchange block is arranged at the joint of the heating chamber and the extrusion generation cavity, and a vortex coil surrounding the heat exchange block is arranged in the heating chamber. According to the aluminum profile extrusion forming device, workers can be assisted in automatically carrying aluminum bars and completing aluminum profile machining.

The invention discloses a hot nozzle core structure special for a black material. The hot nozzle core structure comprises a nozzle core, a flow channel through which the nozzle core is communicated with a flow channel of a hot nozzle body, and a pouring gate which is formed at the end of the nozzle core and is used for a color material to flow out, wherein a grid is arranged at the pouring gate transversely. By using the scheme, the problem that the phenomena of drawing and drooling are caused easily when the color material is extruded by using the conventional hot nozzle core special for the black material is mainly solved; and the product yield is improved.

The invention discloses a method for baking treatment on preserved fruits and a baking room therefor. The method comprises the following steps of putting a material needing to be dried into a microwave drying box, removing 50 to 60% of moisture of the material by microwaves, putting the material dried by microwaves into the baking room, and orderly carrying out baking in different temperature zones respectively having a temperature of 75 to 80 DEG C, a temperature of 80 to 90 DEG C and a temperature of 70 to 80 DEG C in the baking room to obtain baked preserved fruits, wherein total baking time is in a range of 8 to 10 hours. The method has the advantages that microwave heating is finished in a split second so that before entering the baking room, a material is heated to a certain temperature, and thus time is saved and efficiency is improved; microwave heating adopts a three-dimensional heating technology so that internal and external temperatures of a material in the baking room areuniform, and thus the problem that when a material individually enters into a high-temperature zone of the baking room, internal moisture of the material cannot be discharged is solved, and a phenomenon of dry exterior and wet interior is avoided; and microwave heating has a bactericidal effect and microwave sterilization adopts a physical sterilization method so that in microbe killing, toxicants or radioactive pollutants are not remained in a food, and thus the purposes of safety and no harm are realized.