3 results about "Fused quartz" patented technology

The invention discloses a quick-dismounted crushing device for high-purity fused quartz production. The device comprises a device main body; a top cover is arranged on the upper end surface of the device main body; a base is arranged on the lower end surface of the device main body; damping mechanisms and universal wheels are arranged at four angles of the lower end surface of the base; the universal wheels are positioned on one sides of the damping mechanisms; the damping mechanisms comprise outer slide cylinders and inner slide columns; the upper ends of the inner slide columns are embeddedin the outer slide cylinders; through design of the universal wheels, the crushing device can move to achieve carrying and transfer; through design of the damping mechanisms, the damping of the crushing device is realized without influencing movement; through rotation of a screw rod, the crushing device can be shifted or fixed and damped, so that the operation is simple, the use is convenient, andboth manpower and material resources needed by installation and carrying are saved; through design of a charging groove and a lifting rod, the charging is convenient; and through arrangement of a fixed block and an U-shaped block, the quick installation or disassembly of the charging groove is realized by using clamping between the fixed block and the U-shaped block.

The invention discloses an automatic laser repairing method for surface microdefects of a large-diameter fused quartz optical element, relates to the technical field of engineering optics, and aims to solve the problems of low automation degree and low efficiency of an existing repairing method. The method is technically characterized by comprising the following steps: determining a repair strategy according to position information and size information of a surface defect area of an element; and according to the repairing strategy, repairing the defect area on the surface of the element by using a laser repairing device. Furthermore, the minimum distance allowed by repairing the pits is used as a distance threshold value, the crosslinking degree between the defect areas is judged, a multi-defect repairing strategy is adopted for the defect area with the large crosslinking degree, and a single-defect repairing strategy is adopted for the defect area with the small crosslinking degree. According to the method, the processes of repairing strategy making, repairing file generating, corresponding parameter laser outputting and the like are all automated, a large amount of time is saved, and the operation error rate is greatly reduced. The method can be applied to automatic repair of element surface defects.