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47 results about "Material Protrusion" patented technology

Problem associated with undesired physical appearance of device material, specifically when material extends beyond or above device surface.

High-performance lithium iron phosphate cathode material and preparation method thereof

The invention provides a high-performance lithium iron phosphate cathode material for a lithium ion battery. During the preparation process, a carbon source used is a product obtained after nitrogen treatment of cigarette filters in ammonia gas. The invention also provides a preparation method of the lithium iron phosphate cathode material. The preparation method comprises the following steps: a product obtained after nitrogen treatment of cigarette filters in ammonia gas is firstly used as a carbon source of the lithium iron phosphate cathode material; then, an iron source, a lithium source, a phosphorus source and the above carbon source successively undergo uniform mixing, ball milling, drying, crushing and roasting so as to prepare the lithium iron phosphate cathode material. The lithium iron phosphate cathode material has outstanding merits as follows: the preparation technology is simple; cost is low; and the material is easy for large-scale production. As the product obtained after nitrogen treatment of waste cigarette filters in ammonia gas is used as the carbon source, resources are saved to realize cyclic utilization of wastes, and the lithium iron phosphate cathode material with high specific capacity and good rate capability also can be obtained. The lithium iron phosphate cathode material has important practical application value.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Device and method for testing influence of different metal materials on SF6 local sudden discharge fault decomposing

The invention relates to a device and a method for testing influence of different metal materials on SF6 local sudden discharge fault decomposing. The device comprises a pressurizing system, an SF6 discharging gas chamber, a detection system and a metal material protrusion defect model, wherein the output end of the pressurizing system is connected with the metal material protrusion defect model; the metal material protrusion defect model is arranged in the discharging gas chamber, and the detection system is simultaneously connected with the discharging gas chamber and the pressurizing system. The device and the method have the beneficial effects that the cost is low, and the testing method is simple and is suitable for being popularized; the spark discharge fault state caused by different metal protrusion defects in the SF6 electrical insulation equipment can be well simulated; the blank of failure to evaluate the influence of different metal materials on SF6 spark discharging decomposing in the existing test equipment and method for detecting the SF6 decomposing gas component to evaluate the SF6 insulation electrical equipment state is filled; the possibility is created for verifying the influence characteristic and action mechanism of the metal materials on the SF6 spark discharging decomposing.
Owner:YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU +2

Protection type precise setting-out position finder

Provided is a protection type precise setting-out position finder. The position finder comprises a horizontal base of which the upper portion is provided with a bearing base, the bearing base is coordinated with a wall through a flange, and the upper portion of the wall is provided with an iron plate; the structure that the upper portion of the wall is provided with the iron plate is achieved by connecting the wall and the iron plate through a connecting piece, a first connecting piece and a third connecting piece are arranged oppositely, a notch-shaped connecting opening is formed in a second connecting piece, and the bottom wall of the connecting opening faces the direction far from the first connecting piece; the upper portion of the outer wall of the bottom of a square box is integrally connected to an iron material protrusion, the iron material protrusion is located outside the top of the iron plate, and the lower portion of the outer wall of the bottom of the square box is attached to a rubber sheet through viscose glue; a notch is formed in the top wall of the top of the iron plate, and the connecting opening is formed in the side wall in the connecting opening. Through the protection type precise setting-out position finder, the defects in the prior art that the effects of connecting and erecting are lost, the complication of mounting is improved, thus the maintenance becomes difficult, and the fixing and connecting method is always not stable enough caused by a connecting piece are reduced.
Owner:CHINA NAT DECORATION

Peripheral sealing arrangement

ActiveUS20130279834A1Good body shapeMaximal positional stabilityEngine sealsShaftsEngineeringAbutment
The invention relates to a sealing arrangement made of a preferably integral peripheral rubber-like sealing material for sealing the sealing space for use in a rotary connection, wherein the sealing space is confined by a sealing region (17) on the bearing side and the sealing arrangement is used between at least one outer ring (or outer rotatable bearing component) (7) and at least one inner ring (or inner rotatable bearing component) (8) rotatable against one another about the same central axis, wherein the sealing arrangement is not irretrievably fixed in a groove but is connected by positive and non-positive engagement, so as to be releasable and replaceable again, to a recess (2) introduced on a surface parallel to the horizontal outer surface (20; 21) of the rotatable bearing component. The invention is in particular characterised in that a) for fixing by positive engagement on the outer or inner bearing component (7; 8) the sealing arrangement is retained by surrounding a projecting material protrusion (18) as an integral part of the outer or inner rotatable bearing component (7; 8), and b) said material protrusion (18) is surrounded by surfaces (10; 5; 15) which touch the sealing arrangement, and c) the sealing arrangement bears against a lower surface (10) on the bearing side of said material protrusion (18), which, as an abutment, supports the resistance against any axial pushing out from the direction of the sealing space (9) to be sealed.
Owner:IMO HOLDING GMBH
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