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109 results about "Product profile" patented technology

Small-size self-balancing type weather vane

The invention belongs to the technical field of measurement for attack angles and sideslip angles in an aircraft air data system and specifically relates to a small-size self-balancing type weather vane. The problems of a large influence on aircraft or product profiles and a smaller measurable angle scope of the present blade type weather vane are solved. The small-size self-balancing type weather vane comprises a rotating shaft, a weather vane rod and a weather vane made of aluminum alloy material, wherein the weather vane rod comprises a front half part made of stainless steel material and a rear half part made of aluminum alloy material; the front half part has an equal-diameter structure; the rear half part has a streamline contracting type structure; the diameter of the front end of the rear half part connected with the front half part is the same as the diameter of the front half part; the weather vane has a two-side symmetrical platy structure. The small-size self-balancing type weather vane can be used for effectively eliminating the influence on the aircraft or product surface and accurately outputting the attack angle and sideslip angle data; the measurement scope of an attack angle/sideslip angle sensor is greatly increased; the highest use mach number can reach 2.5 and the 340-degree measuring scope can be achieved.
Owner:TAIYUAN AERO INSTR

Production method of circular-blow multi-end bright profiled polyester filament yarns more than 3dpf (denier per filament)

The invention discloses a production method of circular-blow multi-end bright profiled polyester filament yarns more than 3dpf (denier per filament), which is characterized in that a melt conveying pipe is used for conveying melt within a temperature range of from 277 DEG C to 283 DEG C; a spinning box is used for spinning within a temperature range of from 288 DEG C to 295 DEG C, spinning components, each having one-spinneret two-yarn independent cavity for metering, are used for spinning, polyester melt enters the independent cavities of the spinning components and filtered and extruded to form, and 20 yarns are extruded to form at each spinning station; and a calm area of a circular blower is 50mm-65mm high, a circular blow cylinder is more than 230mm high, circular blow pressure is more than 35Pa, and circular blow position for the yarns is more than 900mm away from a nozzle. By the method, the problems of insufficiency in cooling air volume and cooling uniformity are solved effectively. The volume of circular air blow is only 30% of that of lateral air blow, energy consumption is lowered evidently, yarn levelness of products is high, and variation coefficient of product profile degree is small.
Owner:TONGXIANG ZHONGCHEN CHEM FIBER

Profile steel-UHPC (ultra-high performance concrete) combined bridge deck structure suitable for cantilever state as well as construction method thereof

The invention discloses a profile steel-UHPC (ultra-high performance concrete) combined bridge deck structure suitable for a cantilever state as well as a construction method thereof. A profile steel-UHPC lightweight combined bridge deck slab is mainly formed by combining profile steel, steel plate strips welded with short studs as well as an UHPC slab; the profile steel serving as a longitudinalrib is arranged in a transverse bridge direction at intervals; the steel plate strips are arranged on an upper flangeslab of the profile steel in the bridge direction at intervals; and longitudinal and transverse seam structures are T-shaped seams. Finished product profile steel is adopted, so that the manufacturing cost is low, the welding quantity is small and the risk of fatigue cracking is greatly reduced; meanwhile, higher bending-resistant inertia moment is achieved, the cracking risk of the bridge deck slab is reduced and the transverse tension resistance of the bottom surface of the bridge deck slab is enhanced; UHPC in the longitudinal seam position is converted from a pulled state to a pressed state, so that the fact that the operation stage is not cracked can be guaranteed without configuring a prestressing force when the bridge deck slab is under the transverse cantilever state; moreover, breakage in a high tensile stress area can be avoided, shrinkage crack can be avoided,the self weight of the bridge deck slab is reduced, and the method is simple to operate and easy to construct.
Owner:HUNAN UNIV

Composite sanitary product profile without containing wood pulp fibers and preparation method thereof

InactiveCN102697603AOvercoming lumpsOvercome the disadvantage of easy breakageAbsorbent padsBaby linensSurface layerNonwoven fabric
The invention discloses a composite sanitary product profile without containing wood pulp fibers and a preparation method thereof, relates to a profile mainly used for making sanitary products such as paper diapers and sanitary towels, and provides a composite sanitary product profile which is environment-friendly, can reduce the preparation cost and does not contain wood pulp fibers and a preparation method for the profile. The composite sanitary product profile without containing the wood pulp fibers comprises an absorption core body, a non-woven fabric diversion layer, a non-woven fabric surface layer and an impenetrable bottom layer; the absorption core body consists of a core material and a non-woven fabric core material wrapping layer; the core material consists of bulky non-woven fabric fibers and macromolecular water absorption resin penetrating the bulky non-woven fabric fibers, and the non-woven fabric core material wrapping layer wraps the core material; the non-woven fabric diversion layer is bonded with the non-woven fabric core material wrapping layer; and the non-woven fabric surface layer and the impenetrable bottom layer are wrapped on the periphery of the absorption core body together and bonded with the non-woven fabric core material wrapping layer of the absorption core body.
Owner:厦门造福堂文化传媒有限公司

Automatic shaping type film laminating device

The invention discloses an automatic shaping type film laminating device, and relates to the field of vacuum film lamination. The device comprises an elastomer having a curved product profiling end, and the elastomer in an elastic bent state acts on a flexible product to make the flexible product bend to the curved product; and the elastomer acts on the flexible product through deformation restoration in order to make the flexible product automatically shape along the inner chamber of the curved product. The profiling side of the elastomer faces the curved product, and when the elastomer is elastically bent towards the curved product, the elastomer can press the flexible product to bend to the curved product and be in contact with and laminated to the curved product; and when the elastomerrecovers deformation, the elastomer transfers a pressure to the flexible product, and the flexible product is forced to be closely laminated to the curved product, gradually fully fill the entire inner chamber of the curved product and complete the automatic shaping along the inner chamber of the curved product. The device has the advantages of adaptation to the lamination of complex curved surfaces, low shape replacement cost, high laminating precision, and remarkable bubble discharging effect.
Owner:WEIFANG LOKOMO PRECISION IND

Method for compensating surface product defects of automobile outer covering part

The invention discloses a method for compensating stamping surface product defects of an automobile outer covering part. Firstly, obtaining a surface product defect analysis result before compensationby adopting plate forming finite element analysis software; compensating the molded surface of the product on the premise that the quality of the curved surface is not changed; outputting a compensated molded surface meeting the quality requirement of a surface product; importing the profile compensated by the plate forming finite element analysis software into Catia software; and comparing withthe product profile before compensation to form a surface product defect compensation amount reference cloud picture, and compensating the original product profile in a manner of manufacturing a driving curved surface according to the surface product defect position and the deviation value shown in the reference cloud picture, thereby realizing compensation of the surface product defect in the design stage. According to the invention, the workload of bench worker manual grinding and repairing caused by surface product defect rectification can be reduced, the surface product quality of the automobile outer covering part is rapidly improved, and the mold debugging period is shortened.
Owner:CHINA FIRST AUTOMOBILE +1
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