49results about How to "Improve rust and corrosion resistance" patented technology

The invention discloses an environment-friendly anticorrosion waterborne primer paint. The environment-friendly anticorrosion waterborne primer paint comprises the following components in parts by weight: 35-50 parts of waterborne emulsion, 0.5-1 part of waterborne dispersing agent, 0.2-0.5 part of waterborne defoaming agent, 10-35 parts of filler, 1-3 parts of silicon dioxide, 2-3 parts of anti-flash-rust agent, 10-15 parts of zinc phosphate, 1-1.5 parts of organic bentonite, 0.2-0.5 part of pH value regulator, 0.2-0.5 part of thickening agent, 0.5-1 part of film-forming additive, 8-15 parts of pigment and 10-13 parts of water. The invention also discloses a preparation method of the paint. The paint has strong anticorrosion capacity, strong adhesion and high curing speed.

The invention provides anti-rust heat-resistant deformed steel and a processing technology thereof. The deformed steel comprises a base material, a heat-resistant layer and an anti-rust layer; the base material comprises the following chemical components in percentage by mass: 0.2 to 1 percent of carbon, 2 to 3 percent of silicon, 8.2 to 10 percent of tungsten, 2 to 6 percent of molybdenum, 20 to 45 percent of chromium, 0.1 to 0.2 percent of cobalt, 0.5 to 1 percent of manganese, 0.2 to 0.6 percent of vanadium and the balance of iron; the processing technology of the base material comprises the steps of cleaning, dephosphorization, rolling, controlled cooling and straightening; specifically, a steel billet is placed in a cleaning solution, subjected to ultrasonic cleaning and drying and then heated to 1000-1200 DEG C in a furnace, the steel billet is discharged out of the furnace, cooled and then descaled through high-pressure water of 15-25 MPa, the steel billet is sent to a two-roller reversible rolling mill to be roughly rolled, then a universal continuous rolling unit is adopted for continuous rolling, controlled cooling and straightening, and the base material is obtained; the base material is subjected to sand blasting treatment, the surface of the base material is coated with the epoxy micaceous iron oxide intermediate paint, and then the epoxy micaceous iron oxide intermediate paint is coated with the anti-rust coating to serve as an anti-rust layer; and the antirust layer is coated with a heat-resistant coating as a heat-resistant layer.

The invention provides a preparation method of iron-silicon soft magnetic alloy powder. The preparation method comprises the following steps: (1) preparing alloy through the following raw materials in percentage by weight: 5.0 to 6.2% of Si, 2.0 to 4.0% of Cr, 0.05 to 0.15% of P, and the balance Fe; (2) feeding the raw materials into a crucible, smelting through a vacuum induction furnace, and cooling molten alloy into thin sheets in a rapid solidification manner; (3) crushing the thin sheets; dipping with liquid nitrogen; grinding through a ring hammer; and sieving to obtain fine alloy particle powder; (4) grinding through a low-speed stirring grinding machine, and shaping the powder; (5) thermally processing the powder under a reduction atmosphere, namely, heating to reach the temperature of 780 to 900 DEG C, and maintaining the temperature for 2 to 5 hours; and (6) sieving to obtain fine particular iron-silicon soft magnetic alloy powder meeting the requirement of a user on particle size. With the adoption of the method, the fine iron-silicon soft magnetic alloy powder which has a good appearance and is shaped like spheres can be prepared; the demand of preparing an integrally-formed inductor can be met.

The invention discloses emission-free reusable waterborne cutting fluid. The cutting fluid is characterized by being prepared from the following ingredients in weight percentage: 5 to 15% of high-viscosity water-soluble polyether SDN-20, 0.1 to 10% of graphene, 5 to 25% of polyether SDR-40, 2 to 20% of wetting agent, 0.2 to 1.5% of glacial acetic acid, 0.1 to 10% of complexing agent, 4 to 15% of anti-wear agent, 5 to 15% of triethanolamine, 1 to 2% of Grotan OK and 20 to 77.6% of water. The emission-free reusable waterborne cutting fluid has the advantages of no emission, reusability, no replacement, excellent lubrication cooling performance, anti-wear extreme pressure property, rust and corrosion resistance, high inverse solubility, biological stability, corruptibility resistance, stability in all the items of performance, greenness, environmental friendliness, excellent processability, simple production technology, easily obtained raw materials and good product universality.

The invention discloses a pre-bending process for a longitudinal submerged arc welding pipe production line. According to the process, operation is carried out on a longitudinal steel pipe welding pre-bending device; the longitudinal steel pipe welding pre-bending device comprises conveying roll tables which are arranged in parallel, a sucker hoisting conveyor is arranged at the upstream of the conveying roll tables, and a steel pipe pre-bending forming machine is arranged at the downstream of the conveying roll tables; the sucker hoisting conveyor comprises a hoisting cross beam and a vacuum sucker; and the steel pipe pre-bending forming machine comprises a pre-bent upper mold, a pre-bent lower mold and a pre-bent fixture. The process comprises the following steps: a feeding step in which the upper surface of a pre-bent steel plate is sucked by the vacuum sucker to move toward the downstream of the conveying roll tables; a bending step in which the pre-bent upper mold and the pre-bent lower mold of the steel pipe pre-bending forming machine make forward motion; and a resetting step. Relative sliding and friction between the pre-bent steel plate and conveying equipment can be reduced in the pre-bent steel plate feeding process, scratches generated on the surface of the pre-bent steel plate can be avoided, and the anti-rust and anti-corrosion capability of a longitudinal steel pipe can be improved.

The invention discloses an environment-friendly anticorrosion waterborne primer paint. The environment-friendly anticorrosion waterborne primer paint comprises the following components in parts by weight: 35-50 parts of waterborne emulsion, 0.5-1 part of waterborne dispersing agent, 0.2-0.5 part of waterborne defoaming agent, 10-35 parts of filler, 1-3 parts of silicon dioxide, 2-3 parts of anti-flash-rust agent, 10-15 parts of zinc phosphate, 1-1.5 parts of organic bentonite, 0.2-0.5 part of pH value regulator, 0.2-0.5 part of thickening agent, 0.5-1 part of film-forming additive, 8-15 parts of pigment and 10-13 parts of water. The invention also discloses a preparation method of the paint. The paint has strong anticorrosion capacity, strong adhesion and high curing speed.

The invention provides a damage-controllable high-strength concrete shearing wall and a manufacturing method thereof. The damage-controllable high-strength concrete shearing wall comprises a high-strength concrete wall body, frame steel pipes are arranged on the two sides of the high-strength concrete wall body, and the inner sides of the frame steel pipes on the two sides are connected with the high-strength concrete wall body through anti-shearing connecting keys correspondingly; and the frame steel pipes are internally provided with a plurality of ultra-high-strength longitudinal bars, theultra-high-strength longitudinal bars are poured through high-strength concrete to be anchored, and the surfaces of the ultra-high-strength longitudinal bars are coated with anti-rust coatings. When the damage-controllable high-strength concrete shearing wall deforms greatly due to an earthquake or borne large acting force from the outside world, the ultra-high-strength longitudinal bars can be controlled within the elastic stage to deform for energy dissipation, residual deformation of the shearing wall after the earthquake is reduced, the self-reset capacity is provided for the shearing wall, cracking of the concrete can be delayed, a number of large cracks can be prevented from being caused in interfaces between the frame steel pipes and the high-strength concrete wall body, and thus the purposes that damage to a structure after the earthquake is small, and repairing is easy are achieved.

The invention discloses a thin-film anti-corrosion electromagnetic wire. After the alloy copper wire is treated in a thin-film anti-corrosion solution, the surface of the alloy copper wire is covered with an insulating layer by means of sol deposition. The thin-film anti-corrosion solution of the present invention uses alcohol ester Twelve is a film-forming aid, blended with phosphate, silicate, and sulfate, which can effectively improve the rust and corrosion resistance of the alloy, and the added calcium acetylacetonate is blended with stearic acid to form a film The method is coated on the surface of the alloy, which has a good effect of heat resistance and anticorrosion; the present invention uses aluminum isopropoxide as a precursor, hydrolyzes in an alkaline solution, deposits it on the surface of the alloy, and then sinters to realize the sol The coated alloy electromagnetic wire has a very good protection effect on the alloy.