14results about How to "Accurate ingredients" patented technology

The invention provides an aluminum-vanadium-niobium-chromium intermediate alloy as well as a preparation method and application thereof. The aluminum-vanadium-niobium-chromium intermediate alloy comprises the following components in percentage by mass: 15%-22% of V, 1%-7% of Nb, 5%-11% of Cr and the balance of Al and inevitable impurities. The preparation method of the aluminum-vanadium-niobium-chromium intermediate alloy comprises the following steps: firstly, respectively preparing three binary intermediate alloys, namely primary alloys, by utilizing an aluminothermic reduction method; then, the primary alloy is refined through vacuum induction melting, and a secondary alloy is obtained; and finally, the secondary alloy and metal aluminum are subjected to vacuum induction melting, and the aluminum-vanadium-niobium-chromium intermediate alloy is prepared. The aluminum-vanadium-niobium-chromium intermediate alloy has the advantages of being uniform in component, low in element segregation and low in impurity content, and has very good application prospects and large-scale industrial popularization potential in the field of titanium alloy production through the additive manufacturing technology.

The utility model discloses an antioxidant injection allocation mechanism which comprises a tank body, a stirring mechanism and a driving mechanism, according to the scheme, the injection allocation mechanism is designed, a mounting frame is additionally arranged in an upper cavity, the mounting frame is in butt joint with a batching box, assembling and forming are convenient, materials in the batching box enter a weighing box in a weighing mechanism through a discharging pipe, and after weighing, a driving motor drives the weighing box to rotate; the material distribution device has the advantages that the material distribution is accurate, the control is easy, and the efficiency is high.

The utility model discloses an art paint batching device, and belongs to the technical field of art paint batching devices. Comprising a tank body, a plurality of batching barrels and a stirring mechanism, the tank body is composed of a top plate, a side plate of which the upper part is in threaded connection with the lower part of the top plate, and a bottom plate of which the upper part is in threaded connection with the lower part of the side plate; the corresponding upper connecting tables and lower connecting tables are connected through springs; by arranging the top plate, the side plate and the bottom plate which are in threaded connection, the tank body can be detached, so that the interior is convenient to clean, and by arranging the vibration motor and the spring, when powder art paint is placed in the batching barrel, the vibration motor can drive the batching barrel to vibrate, so that the surface of the powder art paint cannot be sunken when the powder art paint flows into the tank body; therefore, accurate burdening can be realized.

The utility model belongs to the field of fertilizer batching, in particular relates to a fertilizer production ground platform batching device, and provides the following scheme aiming at the problems that the existing device cannot realize high-position automatic accurate batching, so that the labor intensity of workers is high, the efficiency is low, the batching precision is difficult to guarantee, and the quality of fertilizer products is influenced. The device comprises a rack, a plurality of conveying belts and a storage box, a plurality of frames are fixedly arranged at the top of the rack, a plurality of funnels are fixedly arranged at the positions, located at the bottoms of the frames, of the rack, and the funnels are communicated with the frames; a stirring mechanism is arranged on the material storage box and is used for stirring and fusing various raw materials. Through the arrangement of the rack, the conveying belt and the storage box, a high-position batching mode is constructed, the labor force is effectively saved, the strength of manual carrying and mixing is reduced, meanwhile, the batching process is more accurate by virtue of stable operation and accurate control of the device, and the production efficiency and the product quality are improved.

The invention relates to a full-DP communication batching scale data acquisition and control method, and the method comprises the steps: carrying out the bidirectional data acquisition of the related parameters of a batching scale through a PLC (Programmable Logic Controller) by utilizing a field bus technology, such as the actual flow, given flow, stock bin value, speed, belt load, accumulation, frequency converter control value, operation, alarm, fault reset and other data; the discharging amount of the batching scale is accurately controlled by setting a flow value in a communication mode, the discharging amount of a dragging belt is accurately controlled by setting a stock bin value, the deviation value does not exceed + / -0.2%, and the accuracy state of the batching scale can be pre-judged on line through the load and speed of the belt. According to the DP communication of the method, the functions of the batching scale are realized to the greatest extent, PID parameters are accurately corrected, accurate batching of the batching system is realized, the cable laying amount is greatly reduced, the workload of maintenance personnel is reduced, the labor cost is reduced, the accuracy state of the batching scale is pre-judged on line, and the batching accuracy is improved.

The invention belongs to the field of alloys, and particularly discloses a manganese-titanium intermediate alloy and a preparation method and application thereof. The manganese-titanium intermediate alloy is prepared by adding sponge titanium step by step according to a specific proportion and carrying out vacuum induction melting. According to the preparation method of the manganese-titanium intermediate alloy and the titanium alloy, the situation that a large amount of Mn element is burnt out in the smelting process can be reduced, so that the component content consistency and uniformity of the manganese-titanium intermediate alloy, the titanium alloy and the like are improved, and the metallurgical quality of the smelted alloy is guaranteed; meanwhile, the method is simple and easy to implement, can be achieved through one-time smelting, does not need to make raw materials into electrode blocks in advance, reduces the process complexity degree and the production cost, and is environmentally friendly and suitable for being widely applied and popularized in the alloy field.

The utility model discloses an electric control batching system which comprises a raw material tank, a support frame fixedly sleeved on the outer wall of the raw material tank, a tank cover arranged on one side of the top end of the raw material tank, a material guide pipe arranged at the bottom end of the raw material tank, a weighing box arranged at the bottom end of the material guide pipe, connected with the support frame through an elastic connecting component, and communicated with the material guide pipe through a telescopic hose. And a plurality of uniformly distributed support plates I are arranged at the bottom end of the weighing box and located on the support frame. The device has the beneficial effects that blanking can be weighed by arranging an elastic connecting assembly, a weighing box and a weighing sensor, so that batching is more accurate, stable blanking of the raw material tank is prevented by arranging a material guiding assembly, and meanwhile, unsmooth blanking caused by blockage of the blanking end of the raw material tank by materials is prevented; raw materials in the raw material tank can be stirred by arranging stirring blades to prevent the raw materials from sticking together, and the raw materials are prevented from sticking to the inner wall of the raw material tank by arranging a tank wall cleaning assembly.

The application provides a rare earth-titanium-boron composite vacuum seal welding high-density cored wire and a preparation method thereof, and belongs to the technical field of metallurgical auxiliary materials. The preparation method comprises the following steps: weighing lanthanum-cerium rare earth alloy powder, titanium powder and boron powder for batching, and then uniformly mixing under a protective atmosphere to obtain mixed powder; filling the mixed powder into a low-carbon steel cylinder after pretreatment under a protective atmosphere, and then preliminarily sealing to obtain a composite blank; performing a reduction reaction on the composite blank in hydrogen, and then performing seal welding under a vacuum condition to obtain a composite blank after vacuum seal welding; heating the composite blank after vacuum seal welding, and then performing hot drawing to obtain the cored wire. The cored wire provided by the application realizes stable composite addition of rare earth, titanium and boron with high recovery rate, and significantly improves the structure and performance of 20Mn2 steel and the like, and solves the problems of cold heading cracking, insufficient toughness and aging embrittlement.

The invention discloses an automatic batching device and method for alloy casting, the device comprises a conveying and guiding mechanism and a shearing blade, the conveying and guiding mechanism comprises a baffle ring, a metal wire feeding system and a sleeve, a metal wire sequentially penetrates through the baffle ring, the metal wire feeding system and the sleeve, and the baffle ring has the effect of restraining the movement range of the metal wire; the metal wire can smoothly move forwards, and the sleeve can enable the metal wire to more straightly move forwards, so that the batching precision is improved; the shearing blade is located behind the sleeve and aligned with the wire. According to the invention, accurate, rapid and automatic batching can be realized.

The invention belongs to the technical field of food production and processing, and particularly relates to a precise powder batching device for food production and processing, which comprises a stirring barrel, a sealing cover is mounted at the top of the stirring barrel, a feed hopper communicated with an inner cavity of the stirring barrel is embedded in the top of the sealing cover, a discharge pipe is arranged right below the bottom end of the stirring barrel, and the discharge pipe is connected with the stirring barrel. Supporting plates which are connected with each other are fixedly connected to one side, opposite to the discharging pipe, of the bottom end of the stirring barrel; a stirring mechanism for stirring powder is arranged in the stirring barrel, the stirring mechanism comprises a first motor fixedly mounted at the top of the sealing cover, and the bottom end of an output shaft of the first motor penetrates through the stirring barrel and is fixedly connected with a rotating rod. Furthermore, the effects of further prolonging the powder mixing time and the mutual collision diffusion frequency of different powder materials are achieved, so that the powder materials which are continuously flapped, impacted and rotationally raised are mixed more uniformly.

The utility model relates to a kind of road construction modified asphalt production device, belong to road asphalt equipment technical field, including rack, batching tank, stirring tank, discharge pipe, material conveying pipe, colloid mill, circulation pipe, material conveying pipe another end is connected with finished product delivery pump, the top of batching tank and two stirring tanks are all fixed with matrix asphalt inlet pipe, the top of batching tank is connected with weighing bin, weighing bin is connected with weighing frame by tension sensor, weighing frame is fixed on rack, the upper portion of weighing bin is equipped with screw conveyor, filter is connected between material conveying pipe and colloid mill, filter and circulation pipe are all connected with a section of bellows between colloid mill.The utility model can accurately measure the dosage of modifier by weighing bin and tension sensor, ensure the accuracy of modified asphalt batching;Material is ground by colloid mill and then returns to stirring tank by circulation pipe for cyclic treatment, cooperating with the stirring equipment arranged in stirring tank, the uniformity of material mixing can be significantly improved.

This invention discloses a stepwise thermal control method for improving the process and performance of laser additive manufacturing of nickel-based superalloys. It is based on a dual-laser additive manufacturing process, which includes a first laser and a second laser beam. During the printing process, for each printed layer, the first laser beam is first applied at 20 J / mm². 3 -40 J / mm 3 A low-energy-density laser preheats and partially melts the alloy powder layer on the substrate to optimize its adhesion and improve its stability. A second laser beam at 70 J / mm² is then used. 3 -110 J / mm 3 The high unit volume laser energy density completely melts the alloy powder layer; the alloy powder layer uses nickel-based high-temperature alloy powder. Therefore, this invention can suppress the burn-off of key elements (such as Al, Cr, Nb, etc.) in the alloy powder layer during the melting stage, achieving precise control of component composition and improving surface quality and dimensional accuracy.

The invention provides a strip-shaped high-entropy alloy self-supporting electrocatalyst as well as a preparation method and application thereof, and belongs to the technical field of nano materials and catalysts. The chemical formula of the strip-shaped high-entropy alloy self-supporting electrocatalyst is FeaCobNicCrdMMn, in the formula, a, b, c, d and e represent the atomic ratio, and a: b: c: d: e = (1-3): (1-3): (1-3): 1: 1. The overpotential of the catalyst provided by the invention can reach 273.2 mV under the current density of 10mA. Cm <-2 > in electrochemical alkaline hydrogen evolution catalysis; and in electrochemical alkaline oxygen evolution catalysis, the overpotential can reach 338.9 mV under the current density of 10mA. Cm <-2 >, and excellent electro-catalysis efficiency is achieved. And after a multi-section current density stability test for 600h, the potential attenuation is only 1.26%, and the stability is excellent.