5results about How to "Reduce degumming" patented technology

The invention discloses a laser cutting method for large-scale polycrystalline diamond, which relates to the technical field of superhard material processing, and comprises the following steps: S1, light source selection: selecting a laser light source with smaller wavelength; s2, a cutting method: first-knife flattening: carrying out first-time cutting on the end surface of the sample by using a laser cutting machine; rotating and cutting the sample, namely rotating the sample by 180 degrees through the rotating function of the laser cutting machine after the sample is swung to be flat, and then cutting for the second time and normally cutting to obtain a high-flatness slice; s3, cutting loss control is conducted, specifically, gap loss is monitored in the cutting process and controlled to be about 0.10 mm; and S4, degumming and block collapse control: before cutting, coating glue on the surface of the sample, irradiating under ultraviolet light, and after cutting is finished, immersing the sample into hot water for degumming. According to the laser cutting method for the large-scale polycrystalline diamond, the cutting quality can be remarkably improved by reasonably selecting a light source, scientifically designing a cutting process and adopting efficient auxiliary materials.

The application discloses a polyvinyl alcohol chemical-proof glove and a manufacturing method thereof, and belongs to the field of glove materials and processing technology. In order to solve the problem of uneven flexibility and thickness of the existing gloves, the polyvinyl alcohol chemical-proof glove and the manufacturing method thereof are provided, and the glove comprises an inner lining layer and a PVA outer layer, and a water-based latex blending layer is formed between the PVA outer layer and the inner lining layer. The water-based latex blending layer is made of raw materials in the following weight proportions: PVA: 10-90; water-based latex: 140-200; glycerol: 8.0-15; polyglycerol: 5.0-15; high-molecular water-absorbing resin I: 2.0-4.0; defoaming agent: 0.5-1.5; bridging agent I: 0.5-2.0; and water: 300-400. The application can effectively reduce the probability of hydrogen bond formation between PVA molecular chains, destroy the regular structure of the film, reduce the crystallinity, thereby reducing the hardness of PVA, and improving the softness and thickness uniformity of the glove.

The invention provides a light-emitting diode and a manufacturing method thereof, and belongs to the field of light-emitting devices. The method comprises the following steps: manufacturing an insulating material layer covering an epitaxial layer; the insulating material layer is patterned to form a current blocking layer and an insulating material mask layer, the insulating material mask layer covers the step area of the epitaxial layer, and the insulating material mask layer exposes the isolation groove area of the epitaxial layer; manufacturing a transparent conductive material layer covering the epitaxial layer and the current blocking layer; manufacturing a first photoresist mask layer on the transparent conductive material layer, wherein the first photoresist mask layer exposes the step region and the isolation groove region; under the shielding of the first photoresist mask layer, performing graphical processing on the transparent conductive material layer to obtain a transparent conductive layer; and under the shielding of the first photoresist mask layer, performing graphical processing on the insulating material mask layer and the epitaxial layer in the step region and the epitaxial layer in the isolation groove region, and forming a step and an isolation groove on the epitaxial layer.

The utility model relates to the technical field of dry-type transformers, and discloses a hanging anti-collision dry-type transformer which comprises a workbench, a supporting column is fixedly installed above the workbench, a lifting assembly is arranged in the supporting column, an L-shaped supporting frame is fixedly installed at the front end of the lifting assembly, and the L-shaped supporting frame is fixedly installed on the workbench. A transformer body is fixedly installed on the inner bottom face of the L-shaped supporting frame, and an auxiliary supporting assembly is arranged at the bottom of the L-shaped supporting frame. According to the hanging anti-collision dry-type transformer, through cooperation of the fixed plate, the limiting rod, the screw rod, the limiting block and the movable plate, a rubber plate can be driven to do linear motion in the front-back direction; and after the transformer main body is lifted to a proper position, the transformer main body is matched with the fixing plate, the limiting rod, the screw rod and other structures to support an unclosed triangular-like structure formed at the bottom of the L-shaped supporting frame, so that the stability of the transformer main body in the lifting process is enhanced.

The invention relates to an embossed technical wood manufacturing method which specifically comprises the following steps: preparing raw materials, preparing a softening solution A containing ammonia water and other components, sanding a technical wood base material, and coating a primer; a technical wood veneer laminated board B is prepared, and technical wood veneers and the gluing base material are subjected to hot pressing through a polyurethane adhesive; a pretreated laminated board C is prepared, softening liquid A is sprayed to the laminated board B, and the water content of the veneer is controlled; preparing an engineered wood embossed board, and embossing the pretreated laminated board C; and finished product processing: cutting, trimming, grinding and polishing the embossed plate. The invention provides a novel softening liquid formula and a novel treatment process, optimizes a polyurethane primer and adhesive formula, strictly sets operation conditions of each step, and performs specific process parameter control. Through the measures, the problems of an existing embossing process are effectively solved, the embossing stability and quality are improved, the visual effect and the additional value of a product are improved, and the requirement of the market for high-quality embossed technical wood is met.