8results about How to "Guaranteed Performance Requirements" patented technology

The invention discloses a circuit board and a manufacturing method thereof, the circuit board comprises a first circuit layer, an insulating layer, a second circuit layer, a first conduction part and a conductive part, and the first circuit layer comprises a connecting pad; the insulating layer is located on the surface of the first circuit layer; the second circuit layer is located on the surface of the insulating layer, and a first through hole penetrates through the second circuit layer, the insulating layer and the connecting pad; the first conduction part penetrates through the first through hole, the first conduction part comprises a first part and a second part which are connected with each other, the first part is located in the first through hole, the second part protrudes out of the surface of the connecting pad, and the first conduction part is formed in an electroplating mode; the conductive portion covers the second portion and extends to a portion of the surface of the connection pad. According to the circuit board and the manufacturing method thereof, the second part protrudes out of the surface of the connecting pad, so that the connection reliability of the conduction part and the second part can be improved, the connection stability of an electronic element on the circuit board is further improved, and meanwhile, the size of the connecting pad can be effectively reduced.

The utility model belongs to garbage incinerator membrane type wall screen structure in the technical field of garbage incinerator. Membrane type wall pipe screen includes many pipe fittings (6), adjacent pipe fittings (6) welding connection, every pipe fitting (6) includes first pipe fitting subassembly (1), second pipe fitting subassembly (2), third pipe fitting subassembly (3), first tee (4), second tee (5), first tee (4) is connected between first pipe fitting subassembly (1) and second pipe fitting subassembly (2), second tee (5) is connected between second pipe fitting subassembly (2) and third pipe fitting subassembly (3). The garbage incinerator membrane type wall screen structure of the utility model, simple structure can reduce the labor intensity, improve the assembly efficiency.

The application provides a high-nitrogen nickel-free austenitic stainless steel component preparation method. The method is based on existing national standard ferritic stainless steel and heat-resistant steel S12791 and S13091 powder, and a high-nitrogen nickel-free austenitic stainless steel component is prepared through in-situ addition of MnN laser additive manufacturing, so as to solve the problems of complex traditional preparation process, high cost, long cycle and the like of the existing high-nitrogen nickel-free austenitic stainless steel component, the problem of difficult acquisition of laser additive manufacturing powder raw materials, and the problem of immature development of special high-nitrogen nickel-free austenitic stainless steel components, and belongs to the field of additive manufacturing.

The invention provides a light-emitting device detection method and device. The method comprises the following steps: in an independent test mode, sequentially driving a plurality of sub-pixels in a light-emitting device to emit light, and respectively performing an electrical test and a first optical test on the sub-pixels when each sub-pixel emits light to obtain independent test parameters; under the condition that the independent test parameters are qualified, carrying out hybrid test on the light-emitting device, and under the hybrid test mode, simultaneously driving a plurality of sub-pixels in the light-emitting device to emit light, and carrying out secondary optical test on the light-emitting device to obtain hybrid test parameters; and under the condition that the mixed test parameters are qualified, sorting the light-emitting devices based on the independent test parameters and the mixed test parameters.

This application relates to the technical field of artificial intelligence computing power, and in particular to a tidal computing power scheduling system and method for heterogeneous computing power resource pools. It includes: a computing power request parsing module, used to receive and parse computing power service requests to determine the computing power requirements corresponding to the tasks; a resource pool management module, used to manage the computing power resource pool; a priority scheduling module, used to obtain request information corresponding to the computing power service requests to determine task priorities, and configure corresponding resource allocation strategies based on task priorities; a node filtering module, used to filter computing nodes in the computing power resource pool according to computing power requirements; and a tidal dynamic scaling scheduling module, used to calculate the tidal period determination results and the load data of the computing power resource pool, and dynamically generate tidal dynamic actions in conjunction with a preset multi-level load threshold pipeline for tidal decision adjustment. This application achieves efficient utilization and intelligent elastic scaling of computing power resources.

This invention provides a composite steel plate comprising a base layer and a cladding layer on top of the base layer. The composite steel plate has a thickness of 60-120 mm, the cladding layer is made of stainless steel, the base layer is made of carbon steel, and the bond strength between the base layer and the cladding layer is above 500 MPa. The composite steel plate of this invention exhibits excellent tensile properties, low-temperature impact resistance, and interlayer bonding performance. This invention also provides a method for preparing the above-mentioned composite steel plate.

This utility model discloses a two-stage expansion muffler for a compressor, belonging to the field of compressor technology. It includes a muffler cavity with an inlet pipe outside the cavity. A flow-dividing cavity is located inside the cavity, corresponding to the output end of the inlet pipe. A flow-dividing hole is provided on the cavity wall of the flow-dividing cavity, which connects to the inlet pipe. The diameters of both the flow-dividing hole and the inlet pipe are smaller than the internal space dimensions of the flow-dividing cavity. The flow-dividing cavity, connected to the inlet pipe, provides semi-directional flow guidance for the refrigerant entering the muffler. The internal space dimensions of the flow-dividing cavity are larger than the cross-sectional area of ​​the inlet pipe's hole but smaller than the internal volume of the muffler cavity. The refrigerant enters from the inlet pipe into the flow-dividing cavity and then from the flow-dividing cavity into the muffler cavity, forming a two-stage expansion impedance muffler structure that filters noise.

The application provides an engine rotor blade tip multi-parameter design method, system and related device, relates to the rotor blade tip design technical field, and the design method comprises the following steps: S1, calculating a blade tip deformation amount, and drawing a blade tip thermal profile; S2, according to the blade tip thermal profile and the blade tip deformation amount, a blade tip final shape is drawn; S3, the deformation amount of a machine case is calculated, and a machine case cold profile is drawn; and S4, according to the machine case cold profile and the blade tip final shape, the cold installation gap of the blade tip and the machine case is determined. The application can ensure the safe operation of the engine under the condition of ensuring the performance requirements of the engine, and greatly improves the rationality of the gap design.