12results about How to "Solve process problems" patented technology

The invention relates to an epoxy resin pouring type transformer with built-in microcirculation cooling channels and a heat dissipation method of the epoxy resin pouring type transformer, and belongs to the technical field of power transformers. The epoxy resin pouring type transformer comprises an iron core, a low-voltage winding, a high-voltage winding and a heat dissipation shell, the low-voltage winding and the high-voltage winding are completely impregnated and wrapped by an epoxy resin composite material through a vacuum pouring process, an integrated epoxy resin pouring body is formed after curing, and a three-dimensional communicated bionic microcirculation cooling channel network is arranged in the epoxy resin pouring body; the heat dissipation shell is in close contact with the outer surface of the epoxy resin pouring body through the high-heat-conductivity insulating medium. According to the invention, the heat dissipation efficiency can be remarkably improved, and a cooling medium (air) is directly guided to a microscopic area around the winding conductor through a three-dimensional communicated and tree-shaped fractal bionic microcirculation cooling channel network, so that the effective heat exchange area and the heat exchange strength are greatly increased, and internal heat can be accurately and efficiently taken away.

This invention discloses an intelligent handling device for frozen sand molds with environmental sensing capabilities, suitable for frozen casting production lines. The device includes a walking mechanism, a support and lifting mechanism, a sand mold clamping and tilting mechanism, an environmental sensing module, and a central control module. The walking mechanism is the power source for the entire machine's movement and consists of a frame chassis, drive wheels, and casters. The support and lifting mechanism consists of an electric cylinder, a pressure sensor, and a crossbeam. The sand mold clamping and tilting mechanism consists of a linear module, clamping arms, clamping plates, a load-bearing shaft, a copper sleeve, a mounting bracket, strain gauges, a hollow rotating platform, and a drive motor. The environmental sensing module is mounted on the frame of the handling device. The block consists of a 3D dot matrix scanning sensor, a machine vision camera, and a thermal imager. The central control module collects data from pressure sensors, strain gauges, and environmental sensing modules in real time for analysis and decision-making. It generates the current optimal working parameters and adjustment parameters through methods such as coupling mapping and digital twins, and feeds them back to each mechanism for real-time control to optimize the handling process. This invention solves the problem of large-scale frozen sand handling and turning in the molding process in a cryogenic casting production line, improves the molding efficiency and accuracy of sand molds, greatly reduces manpower, and plays a role in cost reduction and efficiency improvement for the entire cryogenic casting production line, which is in line with the national trend of developing green casting.

The utility model discloses magnetic traction roller laminating equipment which comprises a rack and further comprises a jig positioning and adjusting mechanism, a threading assembly mechanism, a stretching mechanism and an electromagnet traction mechanism, the jig positioning and adjusting mechanism is used for positioning and clamping a surrounding screen and adjusting the position of the surrounding screen in the X direction, and the threading assembly mechanism comprises a fixed roller. The stretching mechanism is used for fixing, stretching and guiding the protective film, the end of the protective film is in lap joint with the fixed rolling wheel, and the electromagnet traction mechanism is used for attaching the protective film in place to the surrounding screen. According to the device, all the mechanisms are matched with one another, it is guaranteed that the protective film can be accurately and tightly attached to the surrounding screen, the position and height can be accurately controlled, the automation degree and efficiency of the attaching process are high, the attaching quality can be guaranteed, and therefore the attaching yield of surrounding screen products is increased, and meanwhile the production efficiency is improved.

This application discloses an etching method, comprising: covering photoresist on a dielectric layer using a photolithography process to expose a target area; etching to a predetermined depth in the dielectric layer of the target area to form various types of trenches, including a first trench corresponding to an OVL mark; during the etching process, controlling the pressure of the reactive gas to flatten the bottom of the first trench; and removing the photoresist. This application solves the problem of a raised bottom in the first trench caused by micro-loading effects by controlling the pressure of the reactive gas to flatten the bottom of the first trench corresponding to the OVL mark during the etching process of the OVL mark and other areas. This avoids process problems caused by unclear OVL marks and improves device yield.

The utility model discloses a detachable low-environment-temperature anti-icing condensate water collecting and draining device which comprises a water pan body, a water collecting tank and a heating piece. A water baffle is arranged on the water pan body, and a first water pan frame, a second water pan frame and a third water pan frame are arranged on the water pan body. According to the technical scheme, condensate water can be effectively prevented from being accumulated in the water collecting tank or frozen at a low environment temperature, even if a water collecting tank drainage hole or a right-angle drainage pipe elbow is blocked and cannot be drained due to additional factors, after the water level of the condensate water exceeds the overflow notch slope, the condensate water can be drained through the overflow notch slope, and the condensate water is prevented from being frozen. The technical problems that in the prior art, condensate water is accumulated easily and cannot be discharged, heat exchange pipes are cracked due to expansion of accumulated ice, and normal use of a unit is affected are effectively solved. And the water collecting tank is upwards fixed at the bottom end of the water pan in a bolt fixed connection mode, and can be effectively and quickly mounted and dismounted.

The application provides an APC method, system, medium and product for threshold voltage of an LDMOS device, and belongs to the technical field of semiconductors. The APC method comprises the following steps: providing a substrate; etching a conductive layer and part of a first oxide layer to form a second opening, and obtaining the CD of the second opening and the thickness of the first oxide layer under the second opening; etching to form a third opening; obtaining the process conditions for performing first ion implantation on the current batch of substrates according to the CD of the second opening, the CD of the third opening and the thickness of the first oxide layer under the second opening of the current batch of substrates, combining a first APC model, and performing first ion implantation on the current batch of substrates based on the process conditions to adjust the threshold voltage of the LDMOS device. The application can be used to accurately and timely regulate the threshold voltage of the LDMOS device.

This invention relates to an array ultrasonic testing probe and its testing method for small-diameter hollow shafts. It is used for non-destructive testing of internal channel defects in objects such as small-diameter hollow shafts (inner diameter ≤ 30mm) (e.g., hollow railway axles, hollow aircraft axles, etc.). The testing probe extends into the internal channel (11) of the object being tested (1) for inspection. The testing probe includes a probe base, an acoustic matching device, and a composite cable. The probe base is configured as a cylindrical structure adapted to the hollow inner diameter of the object being tested. This invention incorporates an acoustic matching device with an elastic capsule structure. The pressure of the coupling agent within the elastic capsule is adjusted by a coupling agent supply device to regulate the probe's outer diameter.

The invention relates to an organic glass manned cabin forming process based on truncated icosahedron segmentation and bonding welding, relates to the technical field of manned submersible, and aims to solve the problems that internal stress is generated due to polymerization heat release degradation and non-uniform shrinkage, bubbles are difficult to discharge, flow filling is difficult and the like during integral injection molding of a large-thickness organic glass manned cabin. A spherical manned cabin blank is creatively divided into twelve pieces of regular pentagon-like organic glass sheets and twenty pieces of regular hexagon-like organic glass sheets according to a truncated icosahedron. Each single sheet is independently processed by adopting a mature hot bending forming process, so that the consistency of processing quality is ensured; the outer surface of the combined blank is coated with a high-temperature-resistant airtight film and vacuumized, the combined blank is placed in a bonding chamber, high-pressure hot melting bonding is conducted by applying specific temperature and pressure, and it is guaranteed that the bonding face is evenly stressed while all the single pieces are fused into a whole; and finally, a finished product is formed through annealing treatment and machining, and the full-transparent organic glass manned cabin which is high in quality and resistant to high pressure can be manufactured.

The invention belongs to the technical field of carbon fiber process parameter analysis, and discloses a carbon fiber fishing rod pultrusion process parameter optimization and control method. Comprising the steps that tension distribution data and environment temperature and humidity data of multiple bundles of carbon fibers in the pultrusion process are collected in real time; extracting a sensitive interval of tension fluctuation, and constructing a process stability index; according to the process stability index, identifying an abnormal region of tension fluctuation, associating the abnormal region with the process parameters, and generating a process parameter sensitivity map; determining a search space formed by combining different process parameters by analyzing the relevance between the response mode of the process parameters in the process parameter sensitivity atlas and the process output quality; and performing parameter iterative optimization in the search space, outputting an optimal parameter combination of the pultrusion process, and performing optimization control based on the optimal parameter combination. By dynamically sensing and analyzing process data, active adaptation to raw materials and environment disturbance is achieved, and the problem of fiber tension fluctuation is solved.

The application relates to the field of textile materials and technology, in particular to a high-uniformity webbing device and method for down fibers, which comprises a rack, a dispersing and down-storing mechanism, a webbing mechanism and a conveying mechanism; the dispersing and down-storing mechanism is fixedly installed on the rack, the webbing mechanism is fixedly installed on the rack and below the dispersing and down-storing mechanism, and the conveying mechanism is fixedly installed on the rack and at the left end of the webbing mechanism; the water flow with directional flow carries the down and makes it float and spread on the water surface, the system restricts the distribution range of the down through the adjustable-angle blocking strip, and controls the thickness of the down layer on the water surface through the adjustable-height blocking plate; the water flow is used as a webbing medium, so that the fiber distribution disturbance caused by mechanical vibration, air turbulence and electrostatic adsorption in the dry webbing method is fundamentally eliminated; the down naturally floats and spreads on the water surface along the flow, so that the uniformity is greatly improved, and the process problems such as local accumulation or local thinning are effectively solved.

The application discloses a heat treatment process of a thermodynamic auxiliary design Cu-Ni-Fe alloy, and belongs to the technical field of copper alloy heat treatment. The application constructs a thermodynamic model of the Cu-Ni-Fe alloy through first principle calculation, accurately matches the Fe element addition amount and heat treatment process parameters based on thermodynamic calculation, and realizes accurate regulation and control of the alloy organization and performance through steps such as homogenization, solid solution, quenching, grading aging, performance feedback closed loop optimization and the like. The application solves the problems of high development trial and error cost and poor strength and plasticity matching of the traditional Cu-Ni-Fe alloy, the prepared alloy has a tensile strength greater than 1000 MPa and a total elongation at break greater than 43%, and can be widely applied in the field of ocean engineering.