5results about How to "Excellent high strength" patented technology

The invention provides a method for preparing a Ti-Al2O3-PVDF (Polyvinylidene Fluoride) mixed seawater corrosion-resistant coating by low-pressure cold spraying, which comprises the following steps: carrying out surface treatment on a base material, and sequentially grinding, polishing, cleaning, drying and sandblasting to obtain a base material to be sprayed; the preparation method comprises the following steps: mechanically mixing Ti powder, Al2O3 ceramic particles and polyvinylidene fluoride (PVDF) powder to obtain cold spraying prefabricated powder; and the cold spraying prefabricated powder is subjected to low-pressure cold spraying to a to-be-sprayed base material, after the coating is cooled and cured, polishing and correction are conducted, and the Ti-Al2O3-PVDF mixed seawater corrosion resistant coating is obtained. The prepared coating not only has excellent mechanical strength and corrosion resistance, but also has good thermal stability and toughness, is suitable for various harsh application environments, especially can be applied to ocean engineering environments, and can resist seawater scouring and corrosion.

The utility model relates to the technical field of trolleys, and discloses a high-strength trolley which comprises a placing plate, a storage box is fixedly arranged at the upper end of the placing plate, protective covers are hinged to the two sides of the upper end of the storage box, a plurality of air holes are formed in the upper ends of the protective covers, and two partition plates are arranged in the storage box in a clamped mode. First special-shaped pipes are fixedly arranged on the upper portion, the lower portion and the two sides of the lower end of the containing plate, and second special-shaped pipes are fixedly arranged in the middles of the multiple first special-shaped pipes. According to the trolley bottom plate, the first special-shaped pipe and the second special-shaped pipe are arranged at the lower end of the containing plate, the first special-shaped pipe is beneficial to strengthening the strength of the periphery of the lower end of the containing plate, the second special-shaped pipe is arranged in the middle of the containing plate, the strength of the middle of the containing plate is beneficial to strengthening, the structure is simple, and meanwhile the overall strength of the trolley bottom plate is strengthened; and the service life of the trolley is prolonged, the strength of the trolley is improved, and the trolley is convenient to use.

The utility model relates to a technology field of berthing component, concretely relates to a kind of berthing component installation enclosure system reinforcing measure, including wharf platform ontology, the load-bearing beam is fixedly connected in wharf platform ontology inner surface, the load-bearing beam below is provided with berthing assembly, the berthing assembly includes cantilever beam, the cantilever beam is set in the load-bearing beam below, the fixed connection of pile core embedded i-beam is between the cantilever beam with the load-bearing beam, the cantilever beam outer surface is fixedly connected with berthing component ontology, the hole is set in the cantilever beam top, the reinforcing assembly is provided below the berthing component ontology, the supporting assembly is provided above the reinforcing assembly, the reinforcing assembly includes auxiliary reinforcing strip.The utility model in traditional first installation method embedded steel mounting mode is used, combined with structural features and on-site condition, reinforcing measure is added to the berthing component installation enclosure system, with the effect that the strength of enclosure system is strengthened.

The invention provides high-strength and high-hole-expansion steel. The high-strength and high-hole-expansion steel comprises, by mass, 0.04%-0.12% of carbon, smaller than or equal to 0.1% of silicon, 1.3%-1.7% of manganese, smaller than or equal to 0.002% of sulfur, smaller than or equal to 0.015% of phosphorus, 0.01%-0.03% of niobium, 0.0014%-0.06% of vanadium, 0.1%-0.15% of titanium, 0.08%-0.18% of molybdenum, 0.02%-0.05% of acid-soluble aluminum and smaller than or equal to 0.006% of nitrogen. The high-strength and high-hole-expansion steel prepared by the preparation method disclosed by the invention has relatively good hole expansion property while considering the strength, and is high in practicability and worthy of popularization.

The utility model relates to the technical field of silicone rubber electromagnetic shielding film, provide a kind of ultrathin conductive silicone rubber electromagnetic shielding film, including base layer and protective layer;The side of the base layer is provided with protective layer, the side of the base layer and protective layer is all provided with conductive structure.The utility model is provided with conductive structure, adhesive layer is conductive glue and then tenacity layer is adhered in the side of base layer and protective layer, and make the side of tenacity layer be provided with conductive matrix, and tenacity layer is ultrathin polyimide, and it is convenient to improve the strength of the shielding film, and conductive matrix is carbon fiber, and it is convenient to provide conductive performance, to reach the purpose of the shielding film strength and conductive performance is conveniently improved.