67results about How to "Facilitate subsequent welding" patented technology

The invention relates to laser tailor welding, and provides a tailor welding and splicing manipulator, which includes a base and a splicing positioning device. The splicing and positioning device includes an integral frame, and a first splicing positioning area and a second splicing positioning area are arranged side by side in the integral frame. At least one set of first Y-direction slide rails is arranged in the first jigsaw positioning area, and each first Y-direction slide rail is sequentially distributed along the X direction, and each first Y-direction slide rail is sequentially provided with several The first suction cup gripper is provided with a plurality of second suction cup grippers and an XY slide table capable of driving each second suction cup gripper to move in the X direction and in the Y direction in the second jigsaw positioning area. In the present invention, by adjusting the XY slide table and the first Y-direction slide rail, the two opposite surfaces of the two panels grasped by each second suction cup gripper and each first suction cup gripper are close to or attached to each other, which not only improves the splicing efficiency High, and the splicing accuracy is relatively high, and when it cooperates with the laser, it can realize laser welding between the panels, which can effectively ensure the welding quality.

The invention belongs to the technical field of metallurgy and particularly relates to a preparation method of a super-thick alloy steel plate. The preparation method comprises steps that surface treatment is performed on two alloy steel continuous casting slabs matched in length and width dimension; the alloy steel continuous casting slabs are overlapped on a steel feeding swing arm of a tilting gear and align to each other; the alloy steel continuous casting slabs are fed into a vacuum chamber and welded through a structure with two electronic guns; when carbon equivalent of the continuous casting slabs to be compounded is smaller than 0.3%, a front electronic gun begins to perform welding from ends of the alloy steel continuous casting slabs, and a rear electronic gun begins to perform welding from middles of the alloy steel continuous casting slabs; when carbon equivalent of the continuous casting slabs to be compounded is higher than or equal to 0.3%, the distance between the two electronic guns is shortened, an electron beam of the front electronic gun is regulated into a defocusing mode, the front electronic gun preheats welding joints, and the rear electronic gun performs welding soon afterwards; heating rolling is performed on the welded slabs to obtain the super-thick alloy steel plate. By means of the technical scheme, compound interfaces between the continuous casting slabs to be compounded completely align, and yield of the super-thick alloy steel plate is increased.

The invention provides an optical fiber fusion splicing method, which is used for ultra-fine optical fiber fusion splicing, comprising: (1) removing the coating layer of the optical fiber by 30-40mm, and wiping it clean with anhydrous ethanol; (2) clamping the optical fiber with a clamp, and making the The coated optical fiber protrudes from the jig by 1-2mm; (3) Use a cutting machine to cut the optical fiber, and the cutting angle is ≤1°; (4) Place the cut optical fiber in the fusion splicer for fusion splicing, and wrap the optical fiber Input the layer diameter into the fusion splicer, set the cleaning discharge power as special 100bit to special 200bit, the cleaning discharge time as 60 to 100ms, the distance between fiber end faces 10 to 15μm, the fiber premelting power as special 60bit to special 120bit, and the fiber premelting time as 10~50ms, the main discharge power is special 30bit~special 100bit, the main discharge time is 1500~2000ms, the redischarge power is special 200bit~special 300bit, the redischarge time is 600~800ms, and the fiber alignment method is set to off ; (5) Coating the fusion-spliced ​​optical fiber splicing points by using a coating machine. The optical fiber fusion splicing method provided by the invention is suitable for superfine optical fiber fusion splicing, has good fusion splicing effect, and has practical value in optical fiber technology.