5results about How to "Reduce thickness fluctuation" patented technology

The utility model relates to the technical field of semiconductor material preparation, and disclose a kind of N type high-purity silicon target material red phosphorus doping device, including reaction chamber, rotating support mechanism, phosphorus vapor injection system, partition temperature control module, gas circulation unit and intelligent control system, reaction chamber adopts quartz material double-layer structure, the inner wall of reaction chamber is provided with silicon nitride coating, the outer wall of reaction chamber is provided with vacuum pump set, rotating support mechanism includes high-temperature ceramic support, magnetic fluid seal shaft and brushless motor, high-temperature ceramic support is connected with the output end of brushless motor by magnetic fluid seal shaft, by integrated reaction chamber, rotating support mechanism, phosphorus vapor injection system, partition temperature control module, gas circulation unit and intelligent control system, by rotating dynamic doping, intelligent temperature control and waste gas circulation technology, significantly improve the uniformity of doping and raw material utilization rate, realize the efficient, uniform doping of silicon target material.

The invention relates to the field of electroplating, and particularly discloses a pipe fitting repairing device which comprises a storage table, an anode mechanism, a brushing assembly, a plating solution spraying mechanism and a three-dimensional moving mechanism, the storage table is used for fixing a to-be-repaired pipe fitting, and the to-be-repaired pipe fitting is connected to a power source cathode; the anode mechanism comprises a mounting frame and a conductive roller rotationally arranged on the mounting frame, and the cambered surface peripheral side of the conductive roller abuts against the inner wall of the to-be-repaired pipe fitting; the brushing assembly is used for connecting the conductive roller with a power supply anode; the plating solution spraying mechanism is used for spraying a plating solution to the inner wall of the to-be-repaired pipe fitting; and the three-dimensional moving mechanism is used for driving the anode mechanism to freely move in a three-dimensional space. The roller type anodes make contact with the inner wall of the pipe fitting in a rolling mode, the problem that manual brush plating operation is large in difficulty is solved, meanwhile, uniform pressure can be kept, plating thickness fluctuation and current density fluctuation are reduced, plating uniformity is ensured, defects are reduced, and the brush plating quality is improved.

The invention relates to the technical field of cold-formed thin-walled section steel production, and discloses a cold-formed thin-walled section steel production pretreatment process which comprises a workbench, a spraying assembly is fixedly connected to the upper surface of the workbench, a support is fixedly connected to the upper surface of the workbench, and a motor is fixedly connected to the outer wall of the right side of the support; the output end of the motor is fixedly connected with a rotating disc, the outer wall of the rotating disc is fixedly connected with a first fixing shaft, the outer wall of the first fixing shaft is slidably connected with a rotating toothed plate, the outer wall of the left side of the support is fixedly connected with a second fixing shaft, and the interior of the support is slidably connected with a toothed shaft. The motor is started to drive the rotating disc to rotate, the rotating disc drives the rotating toothed plate to slide, the rotating toothed plate drives the spraying head to spray, the reciprocating spraying motion track can ensure that coating liquid evenly covers the surface of steel, multiple times of reciprocating motion can supplement coating uneven areas possibly occurring in the coating process, coating thickness fluctuation is reduced, and the coating quality is improved. And the uniformity of the coating is ensured.

This application relates to the field of production control technology, and particularly to a method and apparatus for adjusting the thickness uniformity of BOPP film castings. The method includes: acquiring production status parameters, production setting parameters, and rotation angle information; determining thickness fluctuation characteristics based on the production status parameters and production setting parameters; wherein the thickness fluctuation characteristics reflect the degree of difference between the actual thickness and the target thickness of the film during film production; and determining an adjustment strategy based on the thickness fluctuation characteristics, rotation angle information, and production status parameters; wherein the adjustment strategy includes a first strategy of adjusting the initial rotation speed setting parameter of the quench roller during film production and a second strategy of adjusting the initial air pressure setting parameter of the air knife during film production. The BOPP film casting thickness uniformity adjustment method provided by this application can improve the thickness uniformity of the film during film production.

The invention relates to the field of electroplating, and particularly discloses a multi-degree-of-freedom pipe fitting repairing device which comprises a storage table, a vibration mechanism, an anode mechanism, a brushing assembly, a plating solution spraying mechanism and a three-dimensional moving mechanism, the storage table is used for fixing a to-be-repaired pipe fitting, and the vibration mechanism is used for driving the storage table to vibrate in a reciprocating mode; the anode mechanism comprises a mounting frame and a conductive roller rotationally arranged on the mounting frame, the arc surface peripheral side of the conductive roller abuts against the inner wall of a to-be-repaired pipe fitting, the electricity brushing assembly is used for connecting the conductive roller with a power supply anode, and the plating solution spraying mechanism is used for spraying a plating solution to the inner wall of the to-be-repaired pipe fitting; and the three-dimensional moving mechanism is used for driving the anode mechanism to freely move in a three-dimensional space. The roller type anode is matched with the vibration mechanism, so that the contact pressure is more uniform, the flowing and uniform distribution of a plating solution are promoted, the plating efficiency can be improved, the fluctuation of the thickness of a plating layer can be reduced, the defects in the plating process can be remarkably reduced, and the brush plating quality can be improved.