4results about How to "Good durability" patented technology

The present application belongs to the technical field of tooling fixture, and discloses a stop block, a stop block preparation method and a fixture. The stop block comprises a base piece, a protection piece and a connecting assembly. The base piece is arranged on a base. The protection piece comprises a mounting cavity, and the base piece can be embedded in the mounting cavity. The protection piece is used for abutting against a product. The base piece and / or the protection piece are detachably connected with the base through the connecting assembly. The base piece is embedded in the mounting cavity of the protection piece. Compared with a 0.1mm-thick Teflon tape or flannelette, the protection piece can provide better buffering performance. Even if the product contacts the stop block with great force or angular deviation, the damage to the product can be effectively reduced. The protection piece can withstand frequent product contact and friction, has good wear resistance and is not easy to break. The protection piece can be used for a long time without maintenance and replacement, thereby reducing the working strength of workers, reducing material costs, and having a positive impact on production efficiency and economic benefits.

The invention provides a spectral selective super-hydrophobic photovoltaic gain coating as well as a preparation method and application thereof, and belongs to the technical field of coatings. The coating comprises 45%-65% of a water-based resin matrix, wherein the water-based resin matrix is a hybrid emulsion formed by fluorosilicone modified acrylic resin and a hydroxyl-terminated aliphatic polyurethane prepolymer; 5%-10% of an infrared reflection nanometer material; 3%-6% of hydrophobic nanoparticles; 1%-3% of a dispersant; 1%-3% of a silane coupling agent; 0.5%-2% of a stabilizer; 0.5%-1.5% of a rheological additive; 0.2%-0.5% of an organic silicon defoaming agent; and the balance of water. According to the invention, a spectral selective thermal management function and a super-hydrophobic self-cleaning function are deeply fused in a water-based coating system on a micro scale, so that the efficiency of the component is improved from two dimensions of reducing light loss and heat loss, and the durability and environmental friendliness of the coating ensure the reliability of long-term application of the coating.

The invention discloses a protective coating for a glass inner wall of a container and a preparation method of the protective coating, and belongs to the technical field of coatings. The protective coating is of a composite film structure and comprises an inner layer composed of oxides of silicon, aluminum, zirconium and titanium and an outer layer composed of pure silicon oxide. And the inner layer comprises the following elements in percentage by mass: 80 to 100 percent of silicon element, 0 to 10 percent of aluminum element, 0 to 10 percent of zirconium element and 0 to 3 percent of titanium element based on the total mass of the silicon element, the aluminum element, the zirconium element and the titanium element being 100 percent. By adopting a specific double-layer composite structure, the gradient compact barrier with complementary functions is formed. The structure not only can synergistically block precipitation of various ions, but also has the advantages of firm combination and good thermal stability, so that the chemical stability and the service life of the glass container are remarkably improved.

The utility model discloses a kind of micro plunger pumps, comprising: pump body, cylindrical coil, movable core in the axis of cylindrical coil, water inlet pipe and water outlet pipe, valve port is opened in water outlet pipe, check valve assembly is provided at the outlet of valve port and is matched with movable core, to control the on-off of valve port, it is characterized in that, check valve assembly includes the check valve plug made of elastomer material and the cylindrical check valve seat made of metal or polyformaldehyde, elastic component and check valve support seat, check valve seat is installed at the outlet of valve port, the top of check valve seat is provided with the first through-hole corresponding with valve port, elastic component is installed at the end of check valve plug and is matched with check valve support seat to make the arc surface of check valve plug and the outlet of first through-hole abut, the check valve plug made of elastomer material and the cylindrical check valve seat made of metal or polyformaldehyde, not easy to occur chemical reaction, can effectively solve the problem of check valve plug and valve port adhesion.