9 results about "Water assisted" patented technology

The invention relates to a waste water auxiliary drainage device for a rotary screen paper machine, which comprises a composite roller, a waste water drainage device and a waste water drainage device, wherein the composite roller is used for extruding coarse cotton cloth and is positioned above a screen part; the water guide mechanism is used for guiding and draining water extruded from the coarse cotton cloth; the water guide mechanism comprises a drainage assembly used for guiding water out; the energy reducing assembly is used for reducing the impact potential energy of water on the drainage assembly; and the water guide mechanism is arranged behind the composite roller along the motion direction of the coarse cotton cloth. According to the rotary screen paper machine, a traditional linear mop is improved into an innovative and adjustable splayed totally-closed dewatering device, so that the problem of water removal in a composite area of the rotary screen paper machine is successfully solved, and the quality of a final product is effectively improved.

The utility model provides a waterproof structure for construction of an ultra-deep foundation pit in an urban updated industrial factory building. The waterproof structure for construction of the ultra-deep foundation pit in the urban updated industrial factory building comprises a secant pile body, and a steel pipe pile support is arranged outside the secant pile body; a tube well is arranged on the outer side of the steel pipe pile support. According to the technical scheme, preliminary waterproofing is achieved through tight meshing of the secant pile body; the waterproof performance is improved through the reinforcing effect of the steel pipe pile support; the water level in the foundation pit and the leakage risk are reduced under the assistance of dewatering of the tube well; and finally, construction of multiple waterproof barriers is achieved, and construction safety and foundation pit stability are ensured.

The utility model discloses a floating auxiliary device which comprises an inflation structure body which is of a strip-shaped air bag structure. The framework structure comprises a plurality of annular supporting bodies, the annular supporting bodies are arranged in the inflatable structure body in parallel at intervals and connected with the inflatable structure body, the diameter of the annular supporting bodies of the framework is increased and then decreased or decreased and then increased from one end, and the adjacent annular supporting bodies can be nested with one another; wherein an air inlet and exhaust end is arranged on the inflatable structure body or the framework. The air inflation device has the advantages of being rigid and flexible, convenient to stretch, rapid in air inflation, good in air inflation effect, convenient to carry, small in size after being stored and capable of achieving water buoyancy.

The application provides a two-dimensional SnO nanosheet preparation method based on a water-assisted crystallization synthesis regulation strategy. The core of the strategy is to introduce a specific crystal face inducing agent as a surface regulation medium, and through deep optimization of the crystallization process parameters, the thickness of the nanosheet is accurately measured and the highly crystalline state is directionally synthesized. Compared with the traditional solid phase or hydrothermal synthesis scheme, the process avoids the extreme reaction environment of high temperature and high pressure, significantly reduces the energy consumption and preparation cost, and effectively solves the stability bottleneck of batch production of materials. The SnO nanosheet prepared by the process has excellent p-type semiconductor electrical properties and high specific surface area advantages, and provides potential key material support for the industrial application of high-performance transparent thin film transistors, optoelectronic devices, gas sensitive sensors and new type of electrical contact materials.

This invention discloses a contamination-free transfer method for MoS2 thin films on wide-bandgap semiconductors, comprising: spin-coating a PMMA solution onto the surface of a MoS2 / SiC substrate and curing it to form a PMMA / MoS2 / SiC composite substrate, and drawing an opening at its edge; tilting the composite substrate with the opening into deionized water, allowing the deionized water to enter between the PMMA / MoS2 layer and the SiC layer through the opening, and using the surface tension of the water to completely separate the PMMA / MoS2 layer from the SiC layer; transferring the separated PMMA / MoS2 layer onto a target substrate; and performing resist removal, cleaning, and drying on the transferred sample to complete the transfer of the MoS2 thin film. This method abandons the traditional etching process, utilizes the hydrophilic properties of SiC to achieve peeling through water-assisted interfacial energy control, effectively avoiding substrate structure damage and irreversible damage, and improving the substrate's reusability and process compatibility.

The invention discloses a transparent medium constraint still water assisted ultrafast laser cold machining process for a carbon fiber reinforced composite material, and belongs to the technical field of ultrafast laser micro-nano manufacturing. According to the process, an isolation thin water layer protection interface is constructed in a processing area, so that interference of environmental atmosphere and impurities on the etching process is effectively isolated. According to the bead wetting behavior caused by the inherent hydrophobic characteristic of the carbon fiber reinforced composite material, uniform and controllable spreading of a water layer on the surface of the material is achieved in a breakthrough mode, and the geometric uniformity of the thickness of the thin water layer is guaranteed. Through the synergistic effect of the technical characteristics, the underwater ultrafast laser etching quality of the carbon fiber reinforced composite material is remarkably optimized.

The application discloses a high-reliability transfer method of nanomaterial based on water assistance, which comprises the following steps: preparing polydimethylsiloxane (PDMS) with micro-nano structures, and storing a small amount of water molecules in the surface micro-nano structures of the PDMS; and heating to make the water in the micro-nano structures evaporate rapidly, so as to promote the separation of the PDMS and the material to be transferred, and the material to be transferred is not prone to wrinkling, the success rate of dry transfer of nanomaterial and large-area thin film material is improved, and the application is suitable for the manufacturing field of constructing heterojunction and two-dimensional semiconductor devices by dry transfer.

This invention belongs to the field of low-alloy high-strength structural steel production technology, specifically relating to a production method for ultra-long low-alloy steel plates with a thickness of 12mm ≤ 20mm. It includes: setting the initial cooling temperature for each stage, fine-tuning the roller speed and acceleration in tandem, precisely configuring the water volume and ratio in segments, precisely controlling the red-heat temperature within a narrow range, and using differentiated masking at the beginning and end combined with water spraying in the middle. Compared to existing technologies, this invention significantly improves cooling uniformity, resulting in more uniform and stable microstructure and properties; it thoroughly improves plate shape defects and significantly reduces residual stress; it achieves extremely high precision in controlling the red-heat temperature, enhancing performance stability; and it is suitable for mass production of long, reduced-length plates, improving production efficiency.

According to the various aspects, a present tool assembly or apparatus includes a water delivery component configured to direct water to a workpiece, and a cutting component for removing material to form cut-streets for die singulation. The present tool assembly is configured to operate to remove build-up layers and other layers from a glass core of the workpiece in a wet environment and a dry environment, at cut-street locations, and perform methods for dicing the workpiece.