34results about How to "Has anti-corrosion properties" patented technology

The invention discloses a preparation method of a directional zeolite membrane. The preparation method of the directional zeolite membrane comprises the following steps: a metal substrate is provided; a zeolite crystal is provided, and the aspect ratio of the zeolite crystal is at least 2; the zeolite crystal is flatly laid on the metal substrate to obtain a first metal substrate; precursor liquid is attached on the surface of the first metal substrate to obtain a second metal substrate, and contains a first structure guide agent and a solvent; and the second metal substrate and a preset quantity of solvent are put in a closed container to be continuously heated at 100-550 DEG C for reaction by at least 15 minutes to generate the directional zeolite membrane. The directional zeolite membrane is uniform in thickness, and is allowed to completely coat the surface of the substrate to form a compact film, so that the effect of corrosion resistance of the directional zeolite membrane is improved.

The invention discloses a roller cone bit, which comprises a drill bit seat and a roller cone. A tri-cone bit claw is arranged at the connection between the drill bit seat and the tri-cone bit, and a rotating bearing is arranged at the connection between the roller cone and the tri-cone bit claw. One end surface of the tri-cone bit claw is provided with a fixed seat, both sides of the tri-cone bit claw are penetrated with extrusion rods, and the inside of the tri-cone bit bit claw is symmetrically provided with a first placement slot for extruding. One end of the rod extends to the inside of the first placing groove, the surface of one end of the extrusion rod located inside the first placing groove is provided with a squeezing plate, one side of the squeezing plate is provided with a sponge block, and the inside of the tricone bit claw is One side of the first placement groove is provided with a cavity, and a liquid outlet hole is opened inside the claw of the tricone bit, and the liquid outlet hole is communicated with the container cavity and the first placement groove, and the extrusion rod is connected with the first placement groove. A spring sleeve is arranged at the connection, and an extrusion block is arranged on the surface of one end of the extrusion rod which is located outside the teeth of the tricone bit.

This case involves an anti-corrosion polyurethane water-based paint and its preparation method, using amino-terminated graphene and polyurethane prepolymer to synthesize a modified polyurethane emulsion, which is then made into a water-based paint. The present invention effectively solves the problem of uneven dispersion of graphene in polymer emulsions by modifying graphene, and grafts amino-terminated polyether chains on the surface of graphene to make polyurethane prepolymers and amino-terminated graphite Graphene is combined with chemical bonds to form graphene-modified polyurethane emulsion, so that it has certain anti-corrosion properties; at the same time, the polyether chain between graphene and polyurethane segments increases its hydrophilicity and dispersibility, making it easy for various additives to enter into the polyurethane emulsion system to form a water-based polyurethane coating, which greatly improves the strength of the polyurethane coating; water is used as the main solvent, which is environmentally friendly and suitable for coating the interior walls of buildings. The paint film formed after coating has good self- Cleanliness, flat and smooth surface, excellent adhesion, long aging resistance.