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2 results about "Necking" patented technology
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Necking, in engineering or materials science, is a mode of tensile deformation where relatively large amounts of strain localize disproportionately in a small region of the material. The resulting prominent decrease in local cross-sectional area provides the basis for the name "neck". Because the local strains in the neck are large, necking is often closely associated with yielding, a form of plastic deformation associated with ductile materials, often metals or polymers. Once necking has begun, the neck becomes the exclusive location of yielding in the material, as the reduced area gives the neck the largest local stress. The neck eventually becomes a fracture when enough strain is applied.
A reducer square flowmeter water distributor
The application relates to a necking square flowmeter water distributor and relates to the technical field of pipeline water supply equipment. The square part of the water inlet main pipe and the water return main pipe is formed by high compression necking of a stainless steel round pipe through a special die. The pipe wall is uniform, not thinned, free of hidden crack dangers, higher in pressure resistance, higher in safety, and low in processing cost. The two ends of the main pipe body are provided with mounting heads, the mounting heads are fixedly provided with connecting end heads; the two ends of the main pipe are provided with threaded ports for connecting a heating system, the threaded ports are not turned on the main pipe wall, but are separately processed by thickening pipe fittings, and are then fixed on the end portions of the main pipe through welding; the outer wall and the mounting head are connected through welding, the thickness of the pipe wall at the two ends of the water inlet main pipe and the water return main pipe is guaranteed, the strength of the two ends of the water inlet main pipe and the water return main pipe is improved, the threads at the two ends of the water inlet main pipe and the water return main pipe are thick and strong, the strength is high, the through-stop gauge requirement is fully met, the torsional performance is excellent, and the threads are not easy to slip and break.
Owner:浙江汇瑞流体智控有限公司
A seamless steel pipe necking mechanism
The utility model relates to steel pipe processing equipment technical field provides a seamless steel pipe necking mechanism, including base and locate on the base's feeding unit, necking unit, blanking unit and positioning unit, positioning unit includes locating plate, limit stop and first lift cylinder, and the locating groove that places for steel pipe is set up on locating plate, and locating plate and limit stop cooperate and fix steel pipe, feeding unit can convey steel pipe to locating groove, blanking unit is located between two locating plates for moving out steel pipe in locating groove from locating groove, one side of locating plate is connected with baffle, and the end of baffle can insert into the feeding of blocking steel pipe in feeding unit, the utility model discloses can realize the full automation of steel pipe necking, and necking efficiency is high.
Owner:ZHEJIANG JINHANG STEEL PIPE TECH