38results about How to "Solve problems such as damage" patented technology

The invention discloses an adjustable wafer fixing device and method and a wafer cleaning platform. The adjustable wafer fixing device comprises a plurality of fixing pins, a plurality of elastic devices, a motor and a plurality of sets of torque control systems, wherein the fixing pins are used for fixing wafers and can be installed at the edges of the wafers in an opening and closing mode; the elastic devices are correspondingly connected with the fixing pins and used for controlling movement of the fixing pins; the motor outputs currents or voltages and is used for controlling movement of the elastic devices; one ends of the torque control systems are connected with the elastic devices, the other ends of the torque control systems are connected with the motor, the torque control systems send out signals to control the currents or the voltages output by the motor to make the elastic devices positively or reversely move and then to change positions of the fixing pins. The problem that the wafers are damaged due to too large or too small torque of a part of the wafers because the fixing pins fix the wafers through fixed torque in an existing wafer fixing device is solved.

The invention discloses an integrally casting mold for an aero-engine diffuser. The mold comprises a pedestal and an upper cover plate, wherein an inner ring-shaped cavity structure of the diffuser is integrally formed between the pedestal and the upper cover plate, a frustum cone-shaped loose core is arranged at the center position of the inner ring-shaped cavity structure, a wax injection nozzle communicating with the inner ring-shaped cavity is arranged on the inner ring-shaped cavity structure; and an ejection structure for ejecting the molded diffuser is arranged at the bottom of the inner ring-shaped cavity structure. According to the mold provided by the invention, the diffuser cast can be integrally formed into a ring at a time without subsequent wax molding adhesion, and the problem of reverse pulling of the wax on the mold can be solved, and forming of the aero-engine diffuser with the thick wall is ensured.

Provided is a wafer processing method, which restrains transmitting beams from damaging the front surface of a wafer. The method comprises the steps of: a wave length setting step: setting the wave length of permeable pulsed laser beams of a wafer in a range of 1300nm-1400nm; a step of forming a reformed layer: positioning the focus of the pulsed laser beams in the wafer so as to irradiate the pulsed laser beams corresponding to the segmentation predetermined lines on the back of the wafer, performing processing and feeding on a retention mechanism and a laser beam irradiation mechanism in an opposite way, and forming the reformed layer in the wafer; and a segmentation step: applying external force to the wafer so as to divide the wafer along the segmentation predetermined lines by using the reformed layer as a segmentation point. The step of forming a reformed layer comprises the steps of: irradiating a first pulsed laser beam having less energy of each pulse to form a first reformed layer; and irradiating a second pulsed laser beam having greater energy of each pulse to overlap with the first reformed layer to form a second reformed layer.

The invention discloses a working method of a depth-adjustable energy-saving cultivation device. The cultivation device comprises a mowing mechanism, a weed collecting mechanism, a furrowing mechanism, a soil powdering mechanism and a control mechanism, wherein a soil detecting device and a depth adjusting mechanism are arranged in the furrowing mechanism, the weed collecting mechanism is arrangedabove the mowing mechanism, the furrowing mechanism and the soil powdering mechanism are sequentially arranged behind the mowing mechanism, and the mowing mechanism, the weed collecting mechanism, the furrowing mechanism, the soil powdering mechanism and the depth adjusting mechanism connected with the control mechanism. The weeding mechanism arranged on the cultivation device cuts off weeds on wasteland, the weed collecting mechanism collects the weeds cut off by the weeding mechanism, the soil detecting device detects the humidity of soil, the required soil turning depth is judged accordingto a detection result, the furrowing depth of the furrowing mechanism is adjusted through the depth adjusting mechanism, the cultivation speed and precision of the cultivation device are improved, and the furrowing depth of the depth adjusting mechanism is adjusted.

The polishing diamond block with metal binder includes one grinding layer, one transition layer and one assembling layer, and features the grinding layer including metal binder and diamond crystal once formed integrally and with slots and holes, and the assembling layer in a tail structure. The present invention has no environmental pollution, low power consumption, high efficiency, long service life and stable product quality, and is suitable for grinding and polishing ceramic tile, stone and glass product.

The invention discloses a deep-adjustable automatic ploughing device which comprises a grass mowing mechanism, a grass collecting mechanism, a ditching mechanism, a soil smashing mechanism and a control mechanism, wherein a depth adjusting device is arranged in the ditching mechanism; the grass mowing mechanism, the grass collecting mechanism, the ditching mechanism and the soil smashing mechanism are arranged on a ploughing device body. The grass collecting mechanism is arranged above the grass mowing mechanism. The ditching mechanism and the soil smashing mechanism are sequentially positioned behind the grass mowing mechanism. The grass mowing mechanism, the grass collecting mechanism, the ditching mechanism, the soil smashing mechanism and the depth adjusting device are connected with the control mechanism. By arrangement of the grass mowing mechanism on the ploughing device, grass on wasteland is cut away through the grass mowing mechanism, the grass collecting mechanism recycles the grass cut by the grass mowing mechanism, the wasteland is subjected to soil turning and ditching through the ditching mechanism, ditched soil is smashed through the soil smashing mechanism, the whole process is simple and convenient, the ploughing speed is improved, and the ditching depth is adjusted through the depth adjusting device.

The invention discloses an insulating single wire of a railway digital signal cable. The insulating single wire of the railway digital signal cable comprises a conductor. A polyester fiber reinforcing layer, an inner sheath layer, a foaming layer and an outer sheath layer are wrapped on the periphery of the conductor from inside to outside in sequence. The foaming layer is a physical foaming layer. The polyester fiber reinforcing layer is a polyester fiber paint coating. The insulating single wire of the railway digital signal cable has high tensile strength, high compression resistance and other high mechanical strength and is high in safety and reliability.

The invention discloses a working method of depth-adjustable efficient and automatic land cultivation device. The depth-adjustable efficient and automatic land cultivation device comprises a mowing machine, a weed collecting mechanism, a weed smashing mechanism, a furrowing mechanism, a soil crushing mechanism and a control mechanism, wherein a depth adjusting device is arranged in the furrowing mechanism, the mowing machine, the weed collecting mechanism, the furrowing mechanism and the soil crushing mechanism are arranged on a land cultivation device body, the weed collecting mechanism is arranged above the mowing mechanism, the furrowing mechanism and the soil crushing mechanism are sequentially arranged behind the mowing mechanism, and the mowing machine, the weed collecting mechanism,the furrowing mechanism, the soil crushing mechanism and the depth adjusting device are all connected with the control mechanism. According to the working method, weeds growing in wasteland are mowedthrough the mowing mechanism, the weed collecting mechanism recovers the weeds mowed by the mowing mechanism, then soil turning and furrowing are conducted on the wasteland through the furrowing mechanism, furrowed land undergoes soil crushing through the soil crushing mechanism, the whole process is simple and convenient, the land cultivation speed is improved, and the furrowing depth is adjusted through the depth adjusting device.

The invention discloses an automobile seat backrest graded adjusting structure and an automobile, the automobile seat backrest graded adjusting structure comprises a cushion fixing frame, a cushion and a backrest, the cushion is slidably mounted on the cushion fixing frame, the backrest is mounted at the rear end of the cushion, and the cushion is slidably mounted on the cushion fixing frame. The cushion fixing frame is provided with a first-stage adjusting mechanism which is used for allowing the cushion to slide towards the inner side or the outer side of a vehicle so as to avoid interference between the backrest and a side wall, and the cushion is provided with a second-stage adjusting mechanism used for adjusting the angle of the backrest. Compared with the prior art, interference between the second row of seat backrests and the side wall can be avoided, and the appearance problems of wrinkles and abrasion caused by extrusion deformation of the seat foaming surface sleeve are avoided.

The invention discloses a working method of intelligent integrated seeding equipment. The seeding equipment comprises a ditching mechanism, a seeding mechanism and a control device. A ditching control mechanism, a seeding control mechanism and a control mechanism are arranged in the control device; a depth adjusting mechanism for adjusting the ditching depth according to types of crops is arranged in the ditching control mechanism, a type adjusting mechanism for seeding different crops is arranged in the seeding control mechanism, the ditching control mechanism is connected to the ditching mechanism, the seeding control mechanism is connected to the seeding mechanism, and the ditching mechanism, the seeding mechanism, the ditching control mechanism and the seeding control mechanism are connected to the control mechanism. By arranging the type adjusting mechanism, different seeding demands can be met; by arranging the depth adjusting mechanism in the ditching mechanism, the ditching depth can be adjusted according to the demands on different types of crops, so that the cultivation precision of the equipment is improved effectively, and intelligentization of agricultural production is achieved by the equipment.

The invention discloses a method for working of an efficient intelligent ploughing device. The ploughing device includes a mowing mechanism, a grass collecting mechanism, a grass smashing mechanism, aditching mechanism, a soil crushing mechanism and a control mechanism. The mowing mechanism, the grass collecting mechanism, the ditching mechanism and the soil crushing mechanism are disposed on a ploughing device body. The grass collecting mechanism is arranged above the mowing mechanism, the grass smashing mechanism is arranged in the grass collecting mechanism, and the ditching mechanism andthe soil crushing mechanism are sequentially arranged at the rear of the mowing mechanism. The mowing mechanism, the grass collecting mechanism, the ditching mechanism and the soil crushing mechanismare connected with the control mechanism. According to the method, grass on wasteland is cut off through the mowing mechanism, the grass cut off by the mowing mechanism is recycled through the grass collecting mechanism, the recycled waste grass is smashed through the grass smashing mechanism, then the wasteland undergoes soil turning and ditching through the ditching mechanism, and the ditched land is subjected to soil crushing through the soil crushing mechanism. The whole process is simple and convenient, and the ploughing speed of the ploughing device is improved.