51results about How to "Realized production cost" patented technology

The invention relates to a composite graphite cathode material for a lithium ion battery, and its preparation method, mainly relates to a composite graphite cathode material for a high-capacity lithium ion battery, and its preparation method, and belongs to the field of cathode materials for the lithium ion battery. The composite graphite cathode material for the high-capacity lithium ion battery is formed by blocky powder and spheroidic powder, and is characterized in that the specific surface area is 1.5-3.5m<2> / g, the average particle size is 7-30mum, the Raman ratio R is 0.1-0.3, and the interlamellar spacing of a crystal face (002) is 0.335-0.337nm. The composite graphite cathode material for the lithium ion battery has the advantages of excellent compact density, excellent gram specific capacity and excellent cycle stability, so the energy density per unit volume of the lithium ion battery is improved, and the electrical performances of the cathode material in the lithium ion battery are comprehensively improved.

The invention relates to a preparation method of polyacrylonitrile-based high-strength high-modulus carbon fibers. After polyacrylonitrile (PAN) precursors are subjected to conventional pre-oxidationand low-temperature carbonization, the carbon crystalline orientation can be effectively controlled by increasing the high-temperature carbonization temperature and matching a certain stretching, or increasing the high-temperature carbonization stretching ratio to obtain high-temperature carbonized fibers with an orientation angle of being not greater than 17.5 degrees, and high-temperature graphitization hot drawing treatment is conducted at a relatively low temperature to obtain the high-strength high-modulus carbon fibers with tensile strength of 3.8-5.0 GPa and tensile modulus of 500-600 GPa. The preparation method reduces the requirements on equipment for high-temperature graphitization, which is beneficial to energy saving and cost reduction, and the operation is simple and easy.

The invention discloses a continuous casting production method of sulfur-containing and aluminum-containing high calcium steel. The continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel includes working procedures of converter smelting, LF (ladle furnace) ladle refining, VD (vacuum distillation) vacuum refining and continuous casting. The continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel uses high alkalinity refining slags in the earlier stage of the LF ladle refining process, thereby facilitating deoxygenation and desulfurization, and absorbing inclusions in steel liquid, and then reduces alkalinity of the refining slags in the middle and later stages, thereby inhibiting generation ofCaS, and improving the yield of Ca; and performs wire feeding process alloying and soft blow after vacuum breaking of the VD vacuum refining, achieves even steel liquid constituents and temperature for the steel liquid, facilitates upward floating of the inclusions in the steel liquid, improves purity of the steel liquid, achieves the upward floating of the inclusions in the steel liquid throughstanding, and further improves the purity of the steel liquid. The continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel reduces occurrence rate of anozzle clogging problem in the continuous casting process of the sulfur-containing and aluminum-containing high calcium steel, and compared with a current traditional mold casting process, the continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel can substantially improve production efficiency of the sulfur-containing and aluminum-containing highcalcium steel, and substantially reduces production cost.

The invention discloses a pin shaft mistake proofing device used on an automatic production line. The pin shaft mistake proofing device comprises a rack. A workpiece conveying device is arranged in the rack. Multiple accompanying tools evenly distributed at intervals are arranged on the workpiece conveying device. An axial centering positioning mechanism, a diameter detection mechanism and a ring groove position detection and correcting mechanism are sequentially arranged on the rack from the front end to the tail end. The accompanying tools on the workpiece conveying device sequentially pass through cavities of the axial centering positioning mechanism, the diameter detection mechanism and the ring groove position detection and correcting mechanism. The axial centering positioning mechanism can conduct clamping and centering on workpieces on the accompanying tools, and the types of the workpieces can be recognized according to the length dimension. The diameter detection mechanism can be used for detecting the diameters of the workpieces on the accompanying tools, and the types of the workpieces can be recognized according to the diameter dimension. The ring groove position detection and correcting mechanism can be used for conducting ring groove position detecting and correcting on the workpieces on the accompanying tools. The pin shaft mistake proofing device is used for replacing a traditional manual detection manner in the past, the detection accuracy is ensured, reliability is high, and the device conforms to accuracy and stability of the production line.

The invention discloses a method of preparing graphene nanoplate size through nanometer-distribution collision stripping and the graphene nanoplate size. According to the method of preparing the graphene nanoplate size through nanometer-distribution collision stripping, the graphene nanoplate size is prepared through stripping by means of shear force generated by nanometer-distribution collision; a graphite raw material is dispersed into size, the size is distributed through the nanometer distribution technology, the distributed size collides with stop sheets arranged in a channel in a staggered manner, and so that shear is formed; the size which is not blocked by the first stop sheet can be stopped by other stop sheets, so that fine particles are generated, after the size is stopped and cut layer by layer, the graphene size is shorn layer by layer, and therefore the evenly dispersed graphene size is obtained. The graphene obtained through the method is uniform in particle size, safe, free of pollution, and mass continuous production can be achieved.

The invention relates to an optical system comprising a first lens group G1 and a second lens group G2. Optical axes of the two lens groups are overlapped completely. The field angle of the first lens group G1 is smaller than 60 degrees; and the first lens group G2 of the second lens group G2 is larger than 90 degrees. All lenses of the front segment of the first lens group G1 and the front segment of the second lens group G2 are shared and all lenses of the rear segment of the first lens group G1 and the rear segment of the second lens group G2 are in semicircular shapes along the optical axis direction from the object space. The semicircular lenses, below the horizontal plane where the optical axis is located, of the lenses at the rear segment of the first lens group G1 are kept and the semicircular parts above the horizontal plane are removed completely; and the semicircular lenses, above the horizontal plane where the optical axis is located, of the lenses at the rear segment of the second lens group G2 are kept and the semicircular parts below the horizontal plane are removed completely. The semicircular lenses at the rear segments of the two lens groups are assembled into a same lens cone.

The invention belongs to the technical field of agricultural machinery, and particularly relates to an intelligent driving electric plant protection operation vehicle with an adjustable height and wheel track. The vehicle comprises a front vehicle frame, a rear vehicle frame, a bowing steering mechanism, a wheel track adjusting mechanism, a height adjusting mechanism and a spray rod mechanism. A pesticide box, a diaphragm pump and a portal frame are mounted on the rear vehicle frame, and the wheel track adjusting mechanism is arranged between moving wheels and the vehicle frames. The height adjusting mechanism comprises a connecting seat, a U-shaped bolt and a wheel frame, and the spray rod mechanism comprises a lifting frame, side wheels, an electric push rod, a main spray rod and a sidespray rod. The side wheels are arranged on the two sides of the lifting frame, and the side wheels are embedded in rails on the two sides of the portal frame. The main spray rod is fixed to the lifting frame, the side spray rod is arranged on the main spray rod in a folded mode so that adaptive adjustment can be conducted according to the line spacing and the plant height of operation, the vehiclecan be suitable for plant protection whole-period spraying, universality is high, remote control is adopted in the control mode, and the intelligent degree of plant protection operation is improved.

The invention provides submerged arc furnace equipment for producing macrocrystalline fused magnesite. The submerged arc furnace equipment for producing the macrocrystalline fused magnesite comprisesa submerged arc furnace cylinder, a furnace cover system, a material input system, a broken electrode conveying system and a dust removal and material return system, the furnace cover system is arranged at an upper opening of the submerged arc furnace cylinder, and the material input system and the broken electrode conveying system are arranged on the furnace cover system. The furnace cover systemis provided with a dust removal pipeline, the dust removal pipeline is connected with a dust removal and material return system, and the dust removal and material return system can collect coarse particles in dust and timely return the coarse particles into a submerged arc furnace to be used again. According to the submerged arc furnace equipment for producing the macrocrystalline fused magnesite, by reasonably designing the systems, the systems are organically combined and matched, so that the production efficiency of the submerged arc furnace is improved, an environment-friendly productionenvironment is realized, the labor intensity of workers is reduced, accidents are effectively prevented, automatic treatment is realized, and the production cost of a manufacturer is reduced.