51results about How to "Eliminate delamination" patented technology

A composite construction 1 is obtained by coating the outer periphery of a core material 2 with a shell layer 3. The core material 2 is composed of a first sintered body that is obtained by bonding, with a binder metal, a first hard particle composed of one or more of carbides, nitrides and carbonitrides of metals of Groups 4a, 5a and 6a of the Periodic Table, or a first ceramics obtained by bonding, with a sintering additive, a first ceramic particle composed of at least one of oxides, carbides, nitrides and carbonitrides selected from the group consisting of metals of Groups 4a, 5a and 6a of the Periodic Table, Al, Si and Zn. The shell layer 3 is composed of a second hard sintered body or second ceramics having a different composition from the first hard sintered body. The ratio of the residual free carbon amount Cin in the core material 2 to the residual free carbon amount Cout in the shell layer 3, Cin / Cout, is 0.5 to 2. This prevents shrinkage during the time of sintering and also prevents the strength of the composite construction from lowering due to poor sintering.

The invention discloses a three-layer material injection molding hot runner injection nozzle structure. The three-layer material injection molding hot runner injection nozzle structure comprises a cold mold, an injection nozzle, an outer injection nozzle, an inner injection nozzle, an injection nozzle base and a valve needle; the injection nozzle, the outer injection nozzle, the inner injection nozzle and the injection nozzle base are each of a hollow structure, and the bottom centers of the injection nozzle, the outer injection nozzle, the inner injection nozzle and the injection nozzle baseare open; the injection nozzle base, the outer injection nozzle and the inner injection nozzle are sequentially and coaxially matched in an embedded and sleeved mode from outside to inside, and a circumferential positioning structure is arranged among the injection nozzle base, the outer injection nozzle and the inner injection nozzle; the outer injection nozzle is also coaxially matched with theinjection nozzle in an embedded and sleeved mode; the injection nozzle is fixedly connected with the bottom opening end of the injection nozzle base; the bottom of the injection nozzle is embedded into a cavity of the cold mold; the valve needle penetrates through the injection nozzle, the outer injection nozzle, the inner injection nozzle and the injection nozzle base along the axis in a slidingmode; the top end of the valve needle is connected with a valve needle drive device; the injection nozzle base and the inner injection nozzle are provided with matrix material runners and interlayer material runners; an interlayer material runner is arranged inside the outer injection nozzle; a matrix material runner is arranged inside the outer injection nozzle; and outlets of the matrix materialrunners are located in the bottom centers of the injection nozzle and the inner injection nozzle. The three-layer material injection molding hot runner injection nozzle structure can shorten the process procedure and greatly improve the production efficiency.

The invention discloses a steam type highlight and traceless injection-molding and forming process for a complex precise product. The process sequentially comprises the following steps of: selecting raw materials, baking, pre-heating, combining a die, then quickly heating, adjusting speed and pressure, injecting in sections, maintaining the pressure, cooling quickly, blowing out cold air, opening the die and cleaning the die. An advanced pressure-regulation and speed-regulation staging injection process and an automatic blowing and impurity-removing technology are adopted in the invention. A special heating and cooling technology is that the shapes, the widths and the arrangement density of water passages are designed according to nonuniform heat and cold of the complex precise product in the injection-molding and forming course and the overall shape variation of the product. The steam type highlight and traceless injection-molding and forming process for the complex precise product has the advantages that the residual stress of the product is effectively decreased, various defects generated in the course of producing the plastic product are greatly reduced, the surface quality and the precision of the product are remarkably improved, and the life of the product is remarkably prolonged at the same time because the special process ensures heating and cooling rates of each part of the complex product in the injection-molding and forming course tend to be consistent.

Provided is a hot extrusion optimizing preparation method of a fine grain nickel alloy rotary target capable of achieving even film forming. Nickel with the purity larger than or equal to 99.99% and other element metal with the purity larger than or equal to 99.95% are adopted as alloy raw materials to be molten into a high-purity nickel alloy ingot; and the high-purity nickel alloy ingot is placed in an extrusion die placed in a double-acting backward extrusion machine after being heated by one to two hours, the high-purity nickel alloy ingot is subjected to hot extrusion to form a semi-finished nickel alloy pipe target, the total deformation in the extruding process is larger than 80%, and recrystallization annealing is carried out after cooling. The structure in the nickel alloy is more even, the obvious layering phenomenon is eliminated, the alloy target is high in finished product rate, fine in grain, even in inner structure and more stable in sputtering, film forming is even when the target is used, a high-quality thin film with even thickness can be obtained, and the utilization rate of the target is increased.

The invention discloses a plant point cloud acquisition registration and optimization method based on a TOF camera, comprising the following steps: (1) placing the measured plant on a turntable, adjusting the TOF camera angle of view and aligning it with the measured plant; 2) Turn on the turntable to make it rotate automatically, and at the same time, the TOF camera collects the point cloud data of the measured plant at intervals; (3) Perform real-time preprocessing on each frame of point cloud data collected by the TOF camera; Two frames of point cloud data are registered and optimized, and then integrated to obtain complete plant point cloud data; (5) Statistical filtering is used to remove discrete noise in the number of plant point clouds obtained by registration and optimization processing, and the final point cloud data. The method of the invention can effectively solve the stratification phenomenon of local point clouds.

The invention provides a preparation method for aerogel composite glass. The aerogel composite glass is composed of an aerogel and a glass phase which is used for bonding the aerogel. The preparationmethod comprises the following steps: (1) mixing: uniformly mixing glass powder with the aerogel; (2) melting: heating the glass powder in a mixture obtained in the step (1) to a molten state so as toobtain semi-solid mixed glass melt; (3) calendaring molding: subjecting the mixed glass melt obtained in the step (2) to calendaring molding between rollers or roller plates, and then carrying out cooling; and (4) annealing. The aerogel composite glass disclosed by the invention has good heat insulation performance, light transmittance, safety performance, sound insulation performance and noise reduction performance, and is applicable to the field of doors and windows, curtain wall glass, lighting roofs and the like of green buildings, ultralow-energy-consumption buildings and near-zero-energy-consumption buildings.