76results about How to "Does not cause shedding" patented technology

The invention provides a preparation method of an eggshell-shaped deoxidization catalyst. The preparation method comprises the following steps: firstly, immersing or spraying a glue solution to a spherical carrier so as to form a glue layer on the outer part of the spherical carrier; then coating the glue layer with a porous material; drying and roasting to obtain a shell-layer compound carrier; adding a water solution of soluble noble metal salt into the glue solution to prepare a noble metal salt glue solution; then adding a reducing agent water solution into the noble metal salt glue solution to prepare a noble metal active component precursor solution; finally, immersing or spraying the precursor solution to the shell-layer compound carrier; drying and roasting to prepare the eggshell-shaped deoxidization catalyst. According to the preparation method provided by the invention, the precursor solution contains the sticky glue solution and can prevent noble metal active components from being dispersed into the carrier, so that noble metal is loaded on the surface of a shell layer of the carrier as much as possible, and furthermore, the utilization rate of the active components is improved.

The invention discloses a glass carrier. A fixing table is arranged at the top of a base plate, and a mounting groove is formed in the top of the base plate; a rotating motor is fixedly connected intothe mounting groove, and the driving end of the rotating motor penetrates through the mounting groove to be fixedly connected with the bottom of the fixing table; the top of the fixing table is fixedly connected with a first mechanical arm, a second mechanical arm is vertically welded to the end, away from the fixing table, of the first mechanical arm, and the bottom of the second mechanical armis fixedly connected with a hydraulic oil cylinder; and the piston end of the hydraulic oil cylinder is fixedly connected with a connecting plate. According to the glass carrier, two U-shaped clampingplates clamp the two edges of glass, thus another bearing force is increased for the glass, even if suction of a suction cup is not strong, the glass does not fall, and the loss of the economic costis reduced; and a hydraulic rod drives a pressing plate to extrude the glass, thus the glass is further clamped and firmly borne, and the stability is better.

The invention relates to the technical field of building construction, in particular to a waterproof building coiled material repairing device and method. The waterproof building coiled material repairing device comprises a flat cart, a controller, a clamping mechanism, a feeding mechanism and a repairing mechanism; the clamping mechanism comprises a first sleeve column, a second sleeve column and a plurality of elastic abutting assemblies; the feeding mechanism comprises an adjusting assembly and a sliding assembly; the repairing mechanism comprises a hot drying assembly, a traction assembly and a plurality of pressing rollers, the hot drying assembly is located beside a repairing groove, the traction assembly is movably arranged at the bottom of the flat cart, and the multiple pressing rollers are symmetrically arranged on the traction assembly; and the adjusting assembly, the sliding assembly, the hot drying assembly and the traction assembly are electrically connected with the controller. According to the waterproof building coiled material repairing device and method, accurate repairing can be achieved according to the damage area, the adhesion degree is improved, waste is avoided, and cost reduction is facilitated; and meanwhile, the coiled material can be prevented from being damaged, the construction time is saved, and the overall repairing efficiency is improved.

The invention discloses an automatic magnetic rapid locking chuck. At least two second radial penetrable holes are formed in a prism hole; at least two first radial penetrable holes are formed in theside wall of a blind hole; the prism hole and the blind hole are formed at one end of a central spindle and communicate with each other; first sliding blocks are slidingly located in the first radialpenetrable holes; second sliding blocks are slidingly located in the second radial penetrable holes; the two ends of the first sliding blocks can stretch out of the first radial penetrable holes without dropping out; the two ends of the second sliding blocks can stretch out of the second radial penetrable holes without dropping out; a magnetic sliding pin can slide by the set distance in the axialdirection so as to be inserted into the blind hole of the central spindle; a first elastic piece provides the sliding pin with elastic force enabling the sliding pin to slide into the prism hole; oneends of the first sliding blocks can stretch into first radial indented groove structures on the side wall of the sliding pin; second radial indented groove structures and third radial indented groove structures are arranged on the inner side wall of an outer sleeve slidingly sleeving the outer side of the central spindle; one ends, facing the outer side of the central spindle, of the first sliding blocks can stretch into the second radial indented groove structures; one ends, facing the outer side of the central spindle, of the second sliding blocks can stretch into the third radial indentedgroove structures; and a second elastic piece provides the outer sleeve with elastic force enabling the outer sleeve to slide in the axial direction of the central spindle to force the first slidingblocks to be separated from second radial grooves and the second sliding blocks to be separated from third radial grooves. A screwdriver head can automatically exit without falling off, and the use issafe.

The invention belongs to the technical field of hypersonic wind tunnel test equipment, and discloses a heat storage element for a large-flow high-temperature high-pressure high-speed gas environment. The heat storage element is a metal element which is stacked in the heat storage type heater in a layered mode and used for storing heat and comprises a basic body and a matching block body, the basic body is square grid bodies which are filled in a central cavity of a lining cylinder of the heat storage type heater in a layered mode, and each layer of square grid bodies are arranged in an array mode. The matching block body is a matching grid body which corresponds to the basic body and is suitable for being filled at the edge of a lining cylinder of the heat accumulating type heater; gaps facing incoming flow and penetrating up and down are formed in the basic body and the matching block body, and the gap ratio of the heat storage element is 0.33; the weight of each basic body and each matching block body is greater than or equal to the buoyancy borne by each basic body and each matching block body in a flow field. The heat storage element does not move, does not drop slag, does not float upwards, is convenient to dismount, mount and fix, guarantees the reliability of the heat storage type heater, and improves the cleanliness of test airflow and the quality and efficiency of a wind tunnel test.

The invention concretely discloses an easy-to-use split traditional Chinese herbal medicine mask, which comprises a mask upper part and a mask lower part, wherein the mask upper part and the mask lower part have an overlapping strip in the middle part of the whole mask; the mask upper part is used for covering the forehead region of the forehead, the nose region of the nose, the face upper regionsat the two sides The mask is made into the split mask and comprises the upper part and the lower part; the upper part and the lower part can be used separately and can also be used at the same time;the use scenes are more diversified; wide market prospects are realized.