111results about How to "Simple sealing process" patented technology

An electronic device includes a substrate, a cover body which is placed on the substrate, a first cavity which is surrounded by the substrate and the cover body, and a second cavity which is surrounded by the substrate and the cover body, wherein an inner portion of the first cavity is sealed in a first air pressure atmosphere, and an inner portion of the second cavity is sealed in a second air pressure atmosphere which has a difference of air pressure with respect to the first air pressure atmosphere, a first through-hole, which communicates with the first cavity and is blocked by a seal member, is provided in at least one of the substrate and the cover body, and the first cavity and the second cavity are isolated from each other by a partition wall portion which is integrally provided to the cover body or the substrate.

The invention discloses a rechargeable micro shell lithium ion battery structure and a processing technology thereof. The battery comprises a sealing assembly and a winding body, wherein an electrolyte is arranged in the sealing assembly, and the winding body is soaked into the electrolyte; the sealing assembly consists of a shell, a cover cap and a seal ring, the shell and the cover cap are made of metal materials respectively, and the seal ring realizes insulation between the shell and the cover cap; the winding body is provided with a positive lug and a negative lug, the positive lug is electrically connected with the cover cap, and the negative lug is electrically connected with the shell. The disadvantage that disposable button cells in the current market cannot be recharged for utilization is abandoned, and a rechargeable micro shell lithium ion battery is creatively provided. The battery is simpler in structure, lower in cost and higher in space utilization rate.

The invention relates to a watertight packaging type ultrasonic cleaning transducer which solves the problems of proneness to damage, difficulty in maintenance, low cleaning efficiency and the like of existing cleaning transducers. The transducer comprises a front cover plate, a rear cover plate, a positive electrode plate, a negative electrode plate, a first annular piezoelectric ceramic piece and a second annular piezoelectric ceramic piece, wherein the positive electrode plate, the negative electrode plate, the first annular piezoelectric ceramic piece and the second annular piezoelectric ceramic piece are locked between the front cover plate and the rear cover plate through a prestressing screw rod. The positive and negative electrode plates are connected with wires which are serially connected with a matching inductor. A sealing layer composed of poly propylene glycol ether polyurethane rubber is poured outside the integral structure, and the thickness h of the sealing layer packaged on the front end face of the front cover plate is one quarter of wavelength of sound waves given out by the transducer. The watertight packaging type ultrasonic cleaning transducer is reasonable in material selection, simple in sealing process, low in cost, high in reliability, easy to maintain and convenient for arraying, and further, the matching inductor is added, so that energy sources are saved, and cleaning efficiency is improved.

The invention relates to the technical field of therapy, in particular to a hot and cold ablation needle. The hot and cold ablation needle is used for solving the technical problem that in the prior art, disturbance of a handle part of an ablation needle body can be immediately transmitted to a needle tip part of the ablation needle body, and consequently a patient is affected. The hot and cold ablation needle comprises a first flow inlet pipe assembly and a first backflow pipe assembly, the first flow inlet pipe assembly and the first backflow pipe assembly are constructed to be of bent pipestructures correspondingly, thus the extension directions of the first flow inlet pipe assembly and the first backflow pipe assembly are both changed, even if sudden disturbance or vibration acts on the handle part of the ablation needle body, the situation that acting force is immediately transmitted to the needle tip part of the ablation needle body, and consequently the patient is affected is avoided, therefore, through the bent pipe structures, disturbance of unstable factors such as disturbance to the needle tip part of the ablation needle body can be reduced, and thus the therapeutic stability of the ablation needle body is improved.

The invention discloses a method for forming a composite material by a matched mold, aiming to solve the problems that a composite material formed by an existing method is uneven in surface and insufficient in compactness. The method comprises the following steps: firstly, laying a prepreg layer of the composite material on the surface of an inner mold on a lower mold of a metal mold, and laying expansion rubber uniformly on the outer layer of the prepreg layer of the composite material; secondly, combining an outer mold with the outer layer of the expansion rubber, and combining the outer mold closely at the outer side of the outer mold by a mold combining ring, and covering the upper mold tightly, thereby obtaining the packaged mold; and thirdly, putting the packaged mold in the second step into a curing furnace, curing, then taking the mold out, cooling to room temperature, and demolding, thereby obtaining the formed composite material. The method is used for forming the composite material.

The invention discloses a hermetic seal technique of optical glass and Kovar alloy, belonging to the technical field of vacuum hermetic packaging. By using a Pb welding flux as a braze welding material, high-temperature treatment is carried out at certain temperature to finally implement welding between the two dissimilar materials (optical glass and Kovar alloy), thereby obtaining the packaging structural member formed by sealing a large-area optical window on a Kovar alloy pipe shell. The optical window structure sealed by the technique has the advantages of favorable mechanical strength, favorable air tightness, simple seal technique and high yield. The hermetic seal technique of optical glass and Kovar alloy is applicable to the fields of manufacturing of optical equipment and vacuum hermetic packaging of optical devices.

The invention belongs to the technical field of aluminum alloy surface corrosion resistance, and in particular, relates to a treatment method for improving corrosion resistance of the surface of an aluminum alloy. Through adjustment of an electrolyte ratio and electrolysis process parameters and use of aeration stirring, a formed ceramic oxide film has a more uniform and compact structure; and a titanium-silicon composite sol sealing method is adopted to fill an outer loose layer of the ceramic oxide film so as to further improve the Cl<-> ion infiltration capacity of the film layer. The method is simple, control is easy, the process is stable, and the method is particularly suitable for seawater corrosion resistance protection requirements of aluminum alloys in marine engineering environments.

The invention relates to a magnetic fluorescent coding microsphere and a preparation method thereof. Firstly, during magnetic particle synthesis, medium-chain and short-chain fatty acids are used formodifying the surfaces of magnetic nanoparticles, so that the polarity of the surfaces of the magnetic nanoparticles is increased, the magnetic nanoparticles can be uniformly dispersed in a good solvent, and the particle size is more uniform; then, a two-step swelling method is adopted, which comprises the following steps: firstly, enabling magnetic nanoparticles to enter swelled polymer microspheres; enabling the fluorescent dye to enter the swollen polymer microspheres to form a 'magnetic particle core-fluorescent shell layer' structure, and reducing quenching and shielding effects of the magnetic particles on fluorescence to the greatest extent; then, by utilizing the swelling fading effect of the microspheres in a poor solvent, sealing cracks generated on the surfaces of the microspheres due to the swelling effect, avoiding leakage of magnetic nanoparticles and fluorescent dyes, greatly simplifying the sealing process, and obtaining the magnetic fluorescent coding microspheres withgood microsphere particle uniformity, good magnetic performance and good fluorescent performance.

The invention belongs to the field of new glass materials, and particularly discloses lead-free sealing glass with a transitional expansion coefficient. The lead-free sealing glass with the transitional expansion coefficient is prepared by mixing the effective materials of SiO2, Al2O3, Bi2O3, Fe2O3, Na2O, K2O, MgO, CaO, SrO, BaO and ZnO according to a certain weight fraction. The lead-free sealing glass with the transitional expansion coefficient overcomes the defects of the conventional transitional sealing manner, has the advantages that the sealing process is simple, the cost is low and the product quality is easy to control, and is particularly suitable for the situation that the cross section of the device to be sealed is annular.

The invention relates to a cable intermediate joint protection shell; the cable intermediate joint protection shell comprises a first sealing assembly and a second sealing assembly, wherein the firstsealing assembly and the second sealing assembly are the same in structure. The first sealing assembly is in sealing connection with the second sealing assembly. The connecting pipe of the first sealing assembly is provided with an internal thread, wherein the internal thread is used for being matched with the external thread of a metal sheath of a first cable. The two ends of the cable intermediate joint protection shell can be stably connected with the metal sheath of the first cable and the metal sheath of a second cable, the contact area is large, and the conduction resistance is small. Afastening flange of the first sealing assembly is used for sleeving the metal sheath of the first cable and is arranged at one end, far away from the connecting pipe, of the sealing shell, and the fastening flange is connected with a second flange end in a bolt mode, so that a sealing cavity is formed among the sealing shell and the fastening flange and the metal sheath of the first cable; and thesealing cavity is used for filling a sealing element. The sealing process is simple, and is not limited by the technical level of operating workers during on-site installation.