6results about How to "Avoid deformities" patented technology

The invention discloses an aluminum alloy welding device in the field of aluminum alloy welding, the aluminum alloy welding device comprises a welding part and four conveying parts, the welding part comprises a limiting mechanism and a plurality of welding mechanisms, the limiting mechanism comprises four extension rods, the two ends of each extension rod are sleeved with telescopic sleeves, the telescopic sleeves are slidably connected with the extension rods, and the conveying parts are connected with the extension rods. A square is defined by the four extension rods, every two adjacent fixing sleeves are perpendicular to each other and are fixedly connected, the multiple welding mechanisms are fixedly connected to the four top corners of the limiting mechanism, the four conveying parts are arranged on the four edges of the limiting mechanism in a surrounding mode, and the conveying parts are used for conveying aluminum alloy profiles to a lifting plate on the outer side of the limiting mechanism. And polishing mechanisms for polishing the surfaces of the aluminum alloy profiles are arranged on the two sides of the conveying part. According to the device, the telescopic sleeve can slide according to the size of the aluminum alloy profile needing to be welded, the telescopic sleeve can be lengthened or shrunk to the size of the aluminum alloy profile needing to be welded, and the assembling and welding requirements under most conditions are met to a great extent.

This invention relates to the field of lightning protection technology for high-voltage transmission lines in power systems, specifically to a non-following current multi-stage gap lightning protection device and overvoltage protection method. The device includes multiple multi-stage gap bodies, a high-voltage fixing component, and a low-voltage fixing component. The two ends of each multi-stage gap body are connected to the high-voltage and low-voltage fixing components, respectively. Each multi-stage gap body includes multiple transverse electrodes. These transverse electrodes all point towards the space enclosed by the multiple multi-stage gap bodies and are arranged transversely at intervals in the longitudinal space, forming multi-stage discharge gaps between adjacent transverse electrodes. The high-voltage and low-voltage fixing components are respectively equipped with high-voltage and low-voltage electrodes. This invention employs a split-type distributed structure. The ingenious arrangement of multiple transverse electrodes forms exposed multi-stage discharge gaps, which can quickly guide the movement of the electric arc. The flashover path has stable and reliable discharge performance, effectively dissipating lightning energy and protecting the safety of the distribution network lines.

The application provides a integrated groove frame for shallow direction cultivation of Dioscorea alata L., and belongs to the technical field of yam planting. The device comprises a rectangular groove, a U-shaped groove and a vine traction pipe. The U-shaped groove is arranged in the rectangular groove and has a strip shape for guiding the directional growth of Dioscorea alata L. The vine traction pipe is arranged at the top of the rectangular groove and has an arc shape arranged at the top end and the end of the rectangular groove. The vine traction pipe is used for directional traction of the vines of Dioscorea alata L. The depth of the rectangular groove ranges from 25 cm to 30 cm. The groove frame has a depth ranging from 25 cm to 30 cm, which reduces the dependence of planting on the thickness of the soil layer. The vine traction pipe forms a continuous vine climbing path. After the vines of Dioscorea alata L. grow, the vines are guided to climb on the vine traction pipe, so that the vine leaves are uniformly distributed and mutual shading is avoided. The efficiency of vine photosynthesis is optimized, and the vines are prevented from lodging. When harvesting, the U-shaped groove is directly taken out, large-area soil turning is avoided, the damage to tubers and the destruction of soil structure are reduced, and the integrity of harvesting is improved.

This utility model relates to the field of agricultural engineering technology and discloses a seedling cultivation device for Chinese herbal medicines. It includes a base plate, a square box fixedly connected to the top of the base plate, a cylinder fixedly connected to the right side of the inner wall of the square box, a slider fixedly connected to the driving end of the cylinder, a limit block fixedly connected to the top of the slider, two limit plates fixedly connected to the inner wall of the base plate, and a connecting rod slidably connected to the adjacent side of each of the two limit plates. A fixing plate is fixedly connected to the outer wall of the connecting rod. This utility model facilitates the integration of manual operation and mechanization, reducing labor intensity. It can also be efficiently integrated with transplanters and sprinkler irrigation equipment, reducing labor costs. Combined with temperature and humidity sensors, it can achieve automated environmental control, reducing energy consumption and pest and disease risks, providing strong support for the standardized and large-scale seedling cultivation of Chinese herbal medicines.

The invention provides a chip surface charge elimination method and device. The method comprises the following steps: injecting a gas precursor to the side surface of a chip substrate at a first angle by using a gas injection needle; emitting an ion beam to the side surface of the chip substrate at a second angle by using focused ion beam equipment, and bombarding and decomposing the gas precursor by using the ion beam so as to deposit metal at a target position on the side surface of the chip substrate; the first angle and the second angle are included angles relative to the plane where the side surface of the chip substrate is located; and surface charges of the chip are eliminated by metal grounding. According to the method, the gas precursor is bombarded and decomposed through the ion beam to deposit the metal at the target position on the side surface of the chip substrate, and the chip substrate and the ground are connected through the metal, so that charges on the surface of the chip in the chip circuit repairing process can be exported and eliminated, chip image malformation and drifting are avoided, and the circuit repairing precision is improved.

The invention discloses a method for comprehensively preventing and treating citrus canker and citrus panonychus citri, and relates to the technical field of citrus pest control. The specific prevention and control method comprises the following steps: carrying out unmanned aerial vehicle flight prevention once every month by adopting an oil-manganese-copper mixed pesticide in 1-2cm of spring buds of orange trees or 2-3 months before picking orange fruits or at the early stage of red spider mite occurrence of the orange trees; the oil-manganese-copper mixed medicament is mainly prepared from the following raw materials: plant essential oil, mineral oil missible oil, copper hydroxide wettable powder and mancozeb wettable powder in a weight ratio of (0.5-1): (1-2.5): (1-2): (2-3), according to the invention, the problems in the prior art that mineral oil and other medicaments are mixed for preventing and treating citrus canker and citrus panonychus citri are easy to cause phytotoxicity are solved, not only can efficient and lasting prevention and treatment be realized, but also phytotoxicity caused by sudden weather change or improper use can be prevented, and meanwhile, the appearance quality of fruits can be improved.