3results about How to "Realize entry" patented technology

This utility model discloses a low-temperature high-frequency surgical scalpel, comprising: a handheld part; and a scalpel head body mounted on the handheld part. The handheld part is used to connect a power source, enabling the scalpel head body to perform high-frequency cutting. The scalpel head body includes a blade surface and a cutting edge, with the cutting edge surrounding the blade surface and having a beveled structure. The surface of the blade surface is coated with an insulating coating. This allows for low-temperature, high-efficiency cutting, reducing thermal damage to tissues.

The invention belongs to the technical field of intelligent response type hydrogel preparation, and particularly relates to temperature-solvent dual-response information processing hydrogel with subject-object recognition and regulation effects, a preparation method and application thereof. According to the invention, under the catalysis of 2, 2-azobisisobutyronitrile (AIBN), 2-methyl-2 adamantyl methacrylate (Ad-MA) and N-isopropylacrylamide (NIPAM) are used as raw materials, and an adamantane (Ad) group grafted poly N-isopropylacrylamide derivative (Ad-PNIPAm) is constructed. Then, under the action of auxiliary polymerization and chemical crosslinking of the NIPAM, the semi-interpenetrating network composite hydrogel (Ad-PNIPAm gel) is constructed. The hydrophilic and hydrophobic balance of the Ad-PNIPAm is regulated and controlled by changing the grafting degree of the Ad-MA in the Ad-PNIPAm, so that the stimulation response performance of the Ad-PNIPAm gel is regulated. The composite hydrogel has optical adjustable behaviors of sensitive temperature and solvent stimulation in a wide room temperature environment (4-40 DEG C), not only can quickly respond to external stimulation in a shorter time, but also has adjustable encryption and decryption time, stable reversibility and multiple encryption / decryption capability.

This utility model relates to the field of turbocharger impeller casting technology, and discloses a vacuum casting device for turbocharger impellers. It includes a support base, a vacuum chamber mounted on the top of the support base, a maintenance door at the front end of the vacuum chamber, a maintenance door on one side of the top of a vacuum cover, a guide pipe mounted on the bottom of an intermediate ladle extending into the vacuum chamber, a material cylinder mounted on the top of the intermediate ladle, and a feed inlet on one side of the top of the material cylinder. This utility model incorporates components such as a filter cylinder, cover, connecting base, and mesh cylinder on one side of a vacuum pump. After the vacuum pump evacuates the vacuum chamber and restores it to normal, external gas entering the vacuum chamber is filtered through the mesh cylinder inside the filter cylinder to remove impurities, resulting in pure gas entering the vacuum chamber and improving performance.