161results about How to "Improve the working environment on site" patented technology

The invention provides a wheel quenching device applied to the technical field of metal heat treatment. The wheel quenching device comprises an outer ring tube (1), an inner ring tube (2), a cooling device (3) and a control device (9) for controlling the start/stop of the wheel quenching device. The wheel quenching device is characterized in that: the cooling device (3) comprises a nozzle (4) anda nozzle branch pipe (5); the nozzle branch pipe (5) is connected with the inner ring tube (2); and the nozzle (4) is connected with the nozzle branch pipe (5) and has a structure capable of being aligned with a wheel rim (6). By the technical scheme, the wheel quenching device has the advantages that: 1, the depth of an abnormal structure layer of the wheel rim is reduced; 2, the hardness gradient of the section of the wheel rim along the radial direction is improved; 3, the nozzle adjusting mode is improved, so that the adjustment is simple, and the quenching quality is improved; and 4, water splashing is reduced, the work environment for workers in field is improved, the work environment for equipment is improved and the maintenance cost of electric equipment is reduced.

The invention provides a method for preparing TC4 titanium alloy wire, which comprises the following steps: after annealing, placing an annealed titanium alloy wire blank into a container containing coating agent for heating and stewing, so as to ensure that the titanium alloy wire blank is coated by a protecting film layer; then placing the titanium alloy wire blank onto a linear wire drawing machine for continuous cold drawing. Through the adoption of the process, the linear velocity of the titanium alloy wire blank can be 16 to 40 m/min during cold drawing, so that the production efficiency is greatly improved; the yield is high; both the dimensional precision and surface quality of the titanium alloy wire are effectively guaranteed.

The invention discloses a lining machine method, which comprises the following copper-based double-metal steel strip processing steps: 1) feeding; 2) punching to form hasps; 3) punching to form a U shape; 4) rounding; 5) finely rounding; 6) milling excircle; and 7) boring inner circle. The method is characterized in that the step 5 of finely rounding, the step 6 of milling excircle and the step 7of boring inner circle are accomplished by one extrusion process for forming the required surface roughness and wall thickness of the lining. The method has high economy and high processing property and can improve an on-site working environment greatly.

The invention relates to a jacking type sand core microwave drying device. The drying device mainly comprises a microwave drying cavity, a jacking assembly and a sand core tray, wherein the jacking assembly comprises two supporting stand columns and a jacking sealing bracket arranged between the two supporting stand columns; a vertical linear rail is arranged on each supporting stand column; the jacking sealing bracket is jacked and descended on the supporting stand columns through the vertical linear rails; an inner roller way is arranged on the jacking sealing bracket, and is used for beingmatched with a outer roller way to carry and transport the sand core tray; the microwave drying cavity is located above the supporting stand columns; the bottom of the microwave drying cavity is provided with a feeding opening; when the jacking sealing bracket ascends, the jacking sealing bracket is in sealing connection with the feeding opening. Through matching and sealing of the jacking sealingbracket and the upper microwave drying cavity, microwave leakage prevention is carried out, the problem of microwave leakage is effectively solved, and 3D printing sand core flow coating and automatic drying after dip coating are efficiently realized.

A metallurgical slag sampling device and usage thereof belong to the technical field of metallurgy and are useful in online sampling of high-temperature molten metallurgical slag on a production site. The technical scheme of the invention includes: the metallurgical slag sampling device comprises a paper protection sleeve and a glass vacuum sampling core; the vacuum sampling core is mounted in the protective sleeve and fixed via pug; a sampling actuator holds the protective sleeve and extends into slag on the surface of molten steel, after a moment of standing, the slag sampling device is taken out of the slag and cooled, and a slag sample is submitted for inspection after completely solidifying. The invention is innovation on metallurgical slag sampling processes, and the backward situation of present metallurgical slag sampling is changed. The metallurgical slag sampling device and usage thereof of the invention are simple and feasible, a field operation environment and labor intensity of workers are improved effectively, quality stability and sampling success rate of high-temperature slag sampling are improved, online automatic sampling for metallurgical high-temperature slag is achieved, and further increase in the metallurgical automation level is facilitated.

The invention discloses a double-sided quenching cooling device for a train wheel. The double-sided quenching cooling device for the train wheel comprises a wheel rotary driving device, a middle ringwater spraying device, a lower ring water spraying device and a wheel jacking device; a placed wheel is jacked up by the wheel rotary driving device; the wheel rotary driving device consists of a carrier roller and a motor reduction box assembly; the carrier roller is mounted on an output shaft of the motor reduction box assembly; the middle ring water spraying device consists of a middle ring water pipe, middle hoses and middle nozzles; the middle ring water pipe is connected with each middle nozzle for spraying cooling water towards a wheel tread through the corresponding middle hose; the lower ring water spraying device consists of a lower ring water pipe, lower hoses and lower nozzles; and the lower ring water pipe is connected with each lower nozzle for spraying cooling water towardsthe outer rim surface of the wheel through the corresponding lower hose. According to the double-sided quenching cooling device for the train wheel, the tread and the outer rim surface of a wheel rimare simultaneously subjected to water spraying cooling, namely, the method of increasing the cooling area of the rim and improving the cooling speed of the rim can improve the strength and the hardness and the wear resistance of the wheel without reducing the plasticity and the toughness.

The invention discloses a surface treatment method by directly sticking a transfer film to ultrafine fiber napped leather, which is characterized in that the method comprises the following processing steps: 1) preparing transfer film coiled material, ultrafine fiber napped leather coiled material and a hot-pressing laminating machine; 2) pulling the transfer film and ultrafine fiber napped leather aligned into a double-roll of the hot-pressing laminating machine, and performing hot pressing and rolling, wherein a carrier layer of the transfer film contacts a hot roller and an adhesive layer of the transfer film contacts the ultrafine fiber napped leather; 3) continuously pulling the ultrafine fiber napped leather and the transfer film out of the double-roll, thereby sticking the transfer film to the ultrafine fiber napped leather at this time; and 4) peeling the carrier layer to obtain the finished product. The product obtained by the treatment method of the invention has soft and smooth handfeel, and can be kept on subsequent processes such as lacquering, silk-screen printing, transfer printing, embossing and the like. The surface treatment method of the invention has a simple process and no environmental issues of solvent consumption and recovery, saves a great amount of equipment investment and energy consumption, and improves the site working conditions. Therefore, the surface treatment method of the invention is a desirable substitute of the prior art.

The invention discloses a belt deviation intelligent correcting system and a belt deviation intelligent correcting method for a belt conveyor. Belt deviation detection devices are arranged at the head part, in the middle and at the tail part of a belt; the belt deviation detection devices output signals, the signals output by the belt deviation detection devices are connected with a control unit by A/D (Analog to Digital) conversion, the control unit outputs signals, and the signals output by the control unit are connected with deviation regulation screw drivers to drive deviation regulation rollers by A/D conversion; each belt deviation detection device comprises a posentiometric displacement transducer which is arranged on a belt frame and is formed by a slider and a winding; the middle part of each slider is provided with a fixed shaft; one end of each slider is in line contact with the corresponding winding and the other end of the slider is connected with the tail part of a movable sliding rod which is provided with a roller at the head part and is sleeved with an automatic return spring and one end of the automatic return spring; the rollers are arranged at one side of the belt to be in contact with the belt; the other ends of the automatic return springs are fixed on a frame at the other side of the belt; and when the belt is deviated, the rollers push the sliding rods to move to drive the sliders to slide on the windings by taking the fixed shafts as the centers and voltage difference signals are generated and are output to the control unit by A/D conversion.

The invention discloses a preparation method of a solder for a magnetron cathode assembly. The preparation method is characterized by comprising the following steps of (1) material selecting; (2) proportioning; (3) grinding and uniform mixing; (4) preparing of an organic carrier; and (5) preparing of solder slurry. The preparation method is simple in production process, low in cost and easy to realize automation.

The invention relates to a segmented type deburring roller. The segmented type deburring roller comprises a roller body, centrifugal swinging blocks and connecting shafts. Flanges are arranged on the roller body. Each centrifugal swinging block is provided with a through hole deviating from the center of the centrifugal swinging block. The connecting shafts penetrate through the through holes in the centrifugal swinging blocks and are fixed to the flanges. The rotation diameter, existing when each centrifugal swinging block is swung, of the centrifugal swinging block is larger than the rotation diameter, existing when each flange rotates, of the flange. The axis of each connecting shaft and the axis of the roller body are parallel to each other. One or more connecting shafts which are adjacent axially are grouped into one section. The connecting shafts of the same section are coaxial. The connecting shafts of every two adjacent sections are not coaxial. The segmented type deburring roller is small in vibration, low in noise, convenient to use, long in service life and capable of effectively eliminating oxidizing slag and burrs, left during flame cutting, of continuous casting sheet billets.

The invention relates to an emulsion explosive and a preparation method thereof. The emulsion explosive comprises the following components in parts by weight: 70-80 parts of ammonium nitrate, 5-6 parts of sodium nitrate, 10-15 parts of water, 3-4 parts of composite wax, 0.3-0.8 part of engine oil, 1-1.7 parts of composite emulsifying agent, 0.5-1 part of polymer emulsifying agent and 1.2%-1.7% (based on total weight of the components) of glass beads, wherein the composite emulsifying agent is a mixture of Span 80 and T152 emulsifying agent in a weight ratio of 6 to 4. According to the emulsion explosive disclosed by the invention, various indexes satisfy the relevant national regulations, and the performances reach three international standards, the gap distance for sympathetic detonation reaches 5, the performance quality of the explosive is improved and the burst effect is ideal. Moreover, the high polymer emulsifying agent is added to the explosive formula, so that the storage period of the emulsifying explosive is prolonged to one year from half a year, and therefore, the storage cost of the explosive is reduced. Meanwhile, the composite wax and the engine oil are used in the formula, so that the price is low, the resources are extensive and the production cost is reduced.

The invention discloses fusion ceramic sand production equipment. The fusion ceramic sand production equipment comprises a smelting furnace and a cooling bin. A sealing cover is arranged on the periphery of the smelting furnace. An opening is formed in the sealing cover and is in communication connection with an inlet of the cooling bin, accordingly, a closed cavity is formed by the cooling bin and the sealing cover, and the fusion ceramic sand is produced in the cavity. A closed system is composed of the sealing cover, a blowing way and the cooling bin, the high temperature generated by the smelting furnace is isolated from an operator through the sealing cover, safety of the operator is ensured, and environment friendliness is achieved; and cleanliness of ceramic fusion casting sand is guaranteed, the field operation environment is improved, and the production efficiency is improved.

The invention relates to a flue gas utilization system, a flue gas utilization process and a high-temperature combustion treatment system. The flue gas utilization system is applied to the high-temperature combustion treatment system, the high-temperature combustion treatment system comprises a combustion chamber and a rotary kiln, wherein the combustion chamber is provided with a natural gas burner and an air distribution device. The flue gas utilization system comprises a flue gas settling device, a discharge flue, a high-temperature induced draft fan, an outlet flue, a return flue and a return fan, wherein the return flue communicates with the flue gas settling device, and the return fan arranged on the combustion chamber introduces part of flue gas in the flue gas settling device intothe combustion chamber of the high-temperature combustion treatment system from the return flue to combust combustible volatiles in the flue gas so as to generate heat. The flue gas utilization systemcan effectively solve the problems that an existing rotary kiln is high in energy consumption, a combustion chamber needs to be continuously provided a heat source, flue gas in an incineration chamber is insufficient in combustion, flue gas is not effectively utilized, and flue gas enters the combustion chamber and is difficult to ignite, and can be applied to the carbonization process of activated carbon to produce activated carbon.

The invention belongs to the technical field of lower side door production systems, and particularly relates to an automatic production system for a railway wagon lower side door assembly. According to the technical scheme, the automatic production system for the railway wagon lower side door assembly comprises a door plate feeding area, a hinge feeding area, a hinge pre-positioning device, a resistance spot welding device, an automatic welding device and a stacking area which are sequentially arranged, and welding manipulators are installed on the resistance spot welding device and the automatic welding device; the automatic production system further comprises a track, and a plurality of transfer robots for transferring materials are mounted on the track; the hinge pre-positioning device comprises a pre-positioning platform, and a plurality of hinge fixing and positioning check blocks used for positioning hinges and a plurality of hinge clamping air cylinders used for clamping the hinges are installed on the pre-positioning platform. The automatic production system for the railway wagon lower side door assembly can ensure that the hinges are accurately positioned on the resistance spot welding device.

The invention relates to an intermittent intelligent wine brewing system and a wine brewing method. The wine brewing system includes a first material stirring unit, a second material stirring unit, arice steamer storage unit, a mixed combustion vapor supply unit and a fermented grain airing and cooling unit; the first material stirring unit includes a fermented grain hopper, a grain hopper, a grain and water stirring device, a first conveyor belt and a second conveyor belt; the second material stirring unit includes a material mixing hopper, a bran hopper and a third conveyor belt; the rice steamer storage unit comprises a bracket and a spiral feeding mechanism for loading auxiliary materials into distillation rice steamers; the mixed combustion vapor supply unit includes a boiler for supplying vapor to the distillation rice steamers in which the auxiliary materials are stored; the boiler includes a combustion chamber composed of an upper layer bran husk combustion cavity, a middle layer marsh gas combustion cavity and a lower layer coal combustion cavity; the fermented grain airing and cooling unit includes a fermented grain hopper, a fourth conveyor belt and a blowing box. By means of the wine brewing system and the wine brewing method, not only can materials be uniformly blended, correspondingly the wine discharging amount is greatly increased, and the wine brewing qualityis ensured; moreover, continuous automatic operation can also be achieved, and the wine brewing efficiency is greatly improved.

The invention discloses a preparation process of an acid-base compound Magni coating and relates to a metal surface antiseptic treatment process. The preparation process comprises the procedure of pretreatment conducted before coating, preparation of the coating and treatment conducted after coating, wherein the procedure of preparation of the coating comprises the steps of firstly, conducting potassium chloride galvanization on the surface of a workpiece, and then conducting zincate galvanization, wherein the steps of 21, potassium chloride galvanization, 22, washing III, 23, zincate galvanization, 24, washing IV, 25, film removal and 26, washing V are included; the procedure of treatment conducted after coating comprises the steps of 31, ultralow chromium passivation, 32, washing VI and 33, drying. According to the preparation process of the acid-base compound Magni coating, the potassium chloride galvanization process and the zincate galvanization process are combined together, product quality can be well stabilized, production efficiency is greatly improved, production line operation cost is lowered, the coating on the surface of a product prepared through the preparation process is uniform, surface quality is good, the preparation process has the advantages that the coating speed is high, drying can be conducted easily, product defects are few, the service life of the product is prolonged, the ultralow chromium passivation process is adopted, sewage treatment cost is lowered, and the preparation process is easy to use and popularize.