9results about How to "Avoid degumming" patented technology

This utility model belongs to the field of plywood cold pressing technology, and particularly relates to an environmentally friendly plywood cold pressing device, comprising: a fixed frame, the fixed frame being "n"-shaped, a hydraulic push rod fixedly installed on the top of the fixed frame, the bottom of the hydraulic push rod penetrating into the interior of the fixed frame, and a cold pressing plate fixedly connected to the output end of the hydraulic push rod; six support columns, all six support columns being fixedly connected to the bottom of the inner wall of the fixed frame, and the top of the six support columns being fixedly connected to the same housing; and a moving component, the moving component being disposed inside the housing and used to drive two clamping plates to move simultaneously. Through the above structure, the plywood can be cold-pressed. During the cold pressing operation, this device can limit and fix both sides of the plywood, avoiding slippage and displacement between the layers of the board during cold pressing, or delamination due to insufficient bonding strength, thus facilitating use by workers.

The utility model discloses a fireproof real wood veneer, and particularly relates to the technical field of wood veneers, the fireproof real wood veneer comprises a wood veneer main body, a nanometer fireproof coating is sprayed on the outer end face of the wood veneer main body, a supporting mounting plate is arranged on the outer side of one end of the wood veneer main body, and a concave mounting groove is formed in the end face of one side of the supporting mounting plate; a limiting mounting plate is arranged on the supporting mounting plate and located on one side of the concave mounting groove, a heat insulation mounting plate is arranged in the concave mounting groove, and a wood veneer base layer plate is arranged on the outer portion of the end, away from the supporting mounting plate, of the heat insulation supporting plate. In the actual use process, under the state that the supporting installation plate, the concave installation groove, the limiting installation plate and the heat insulation supporting plate are correspondingly arranged, adhesive is smeared at the attaching position of the concave installation groove and the heat insulation supporting plate, and the firm strength of connection between the heat insulation supporting plate and the supporting installation plate can be effectively improved; meanwhile, the supporting mounting plate and the heat insulation supporting plate are made of materials.

The invention relates to the field of petroleum and natural gas drilling tools, in particular to a screw drill motor stator, a screw drill motor and a forming method.The screw drill motor stator comprises a stator body, a rubber bushing is installed on the inner wall of the stator body, and a first spiral structure is arranged on the inner surface of the rubber bushing; in the stator body, sheaths are arranged at the two ends of the rubber bushing, the outer surfaces of the sheaths are fixedly connected with the stator body, and second spiral structures are arranged on the inner surfaces of the sheaths; the spiral line type of the first spiral structure is the same as the spiral line type of the second spiral structure. According to the motor stator, the second threaded surface is arranged on the inner surface of the sheath, so that the speed and the flow of drilling fluid passing through the motor stator can be increased on the basis of protecting the rubber bushing, and the motor stator has the advantage of improving the descending efficiency of the drilling fluid.

The application relates to the technical field of diffusion plates, in particular to an efficient light diffusion plate of a direct backlight module and a preparation process thereof, which comprises a diffusion plate body, the outer side of the diffusion plate body is provided with a guard element, the outer ring surface of the guard element is embedded with elastic clamping pieces, and the four male corners of the elastic clamping pieces are embedded with mounting pieces. The plastic frame can effectively absorb external impact force, prevent the diffusion plate from being broken or deformed due to collision in the transportation, installation or use process, can close the side wall of the diffusion plate body, prevent moisture, dust or chemical substances from penetrating from the edge, avoid the internal material of the diffusion plate from being degraded due to environmental factors, and prolong the service life.

The utility model discloses a kind of semiconductor packaging jigs, it is related to semiconductor packaging technical field, including shell, the top middle part of shell is equipped with positioning slot, the inside of shell is provided with ejection mechanism, the ejection mechanism includes connecting rod, the top of connecting rod is fixed with ejector plate, the outside of connecting rod is sleeved with reset spring, the bottom of connecting rod is fixed with connecting plate, the bottom of connecting plate is fixed with moving block;The semiconductor packaging jig, by the setting of ejection mechanism, through the start of electric telescopic rod, drive extruding block to move, so that the inclined plane of extruding block extrudes the inclined plane of moving block, so that moving block drives connecting plate to rise, so that connecting rod drives ejector plate to rise, after the substrate of packaging is ejected, make substrate and positioning slot separate, so as to facilitate the substrate to be taken out, avoid forcibly taking out to cause product damage, improve the convenience of device to be taken out.

This utility model discloses an elliptical rubber bushing, including an outer bushing tube and an inner bushing tube arranged coaxially. The outer bushing tube is composed of a straight part and a semi-circular part forming an elliptical structure. An integral rubber main spring is vulcanized in the gap between the inner wall of the outer bushing tube and the outer wall of the inner bushing tube. An integral rubber strap is vulcanized on the outer surface of the outer bushing tube. Through a high-temperature vulcanization process, the outer bushing tube, the inner bushing tube, the rubber main spring, and the rubber strap are vulcanized into one piece to form an elliptical rubber bushing. Utilizing its asymmetrical structure, it provides differentiated stiffness in different directions. The higher stiffness in the longitudinal direction ensures support stability, while the larger elastic deformation space in the lateral direction can effectively absorb vibration, achieving independent control of multi-directional stiffness and adapting to compact installation spaces. This solves the technical problems of existing circular bushings having a limited range of adjustable stiffness in a specific direction, making it difficult to meet the dynamic performance requirements under complex working conditions and the limited space in some installation scenarios.

This utility model discloses a self-adhesive floor sticker with sound insulation effect, belonging to the technical field of self-adhesive floor stickers. The key technical points include a floor sticker body comprising a wear-resistant decorative layer, a sound-insulating buffer layer, a substrate layer, a self-adhesive layer, and a release film. The edges of the floor sticker body are provided with sealed connecting edges. The wear-resistant decorative layer, sound-insulating buffer layer, substrate layer, self-adhesive layer, and release film are arranged sequentially from top to bottom. The sound-insulating buffer layer includes two absorption layers, each with a micro-airbag layer on one side facing the other, and a barrier layer between the two micro-airbag layers. Through the composite design of the sound-insulating buffer layer—a double absorption layer, a barrier layer, and a micro-airbag layer—polyester fiber absorbs vibration noise, closed-cell foamed EVA blocks airborne sound transmission, and the micro-airbag layer enhances buffering and shock absorption. These three elements work together to form a multi-level sound barrier, effectively reducing the transmission of noise such as footsteps and furniture movement, meeting the requirements for a quiet environment.

The application discloses a leather transfer film and a preparation method thereof. The method comprises the following steps: sequentially performing anodic oxidation, hole expansion and silanization treatment on a rigid carrier substrate to obtain a release layer carrier substrate; coating a heat-reversible adhesive layer coating based on a Diels-Alder reversible reaction and curing; printing a pattern decoration layer; coating a self-repairing elastic layer coating, and performing ultraviolet curing and two-stage heat treatment at 60-80 DEG C and 90-110 DEG C to obtain an elastic layer; coating a reactive primer containing an isocyanate group-containing prepolymer and a leather penetrating agent, and pre-curing at 70-90 DEG C to 30%-50% of the isocyanate group reaction degree to obtain a semi-cured primer layer; applying a composite protective film; and aging to obtain a finished product. The transfer film carrier can be reused for more than 50 times, the coating can resist bending for more than 5300 times, and the leather peeling strength reaches 8.5 N / cm, effectively solving the problems of high cost and easy cracking and degumming of the existing transfer film.