11 results about "Nickel alloy" patented technology

The invention discloses an acidic electroplating zinc-nickel alloy electrolyte, a preparation method and an electroplating method thereof; the electrolyte comprises a basic electrolyte and additives; the basic electrolyte is a weakly acidic solution which comprises zinc ions with mass concentration of 27-38g/L, nickel ions with mass centralization of 23-31g/L, chloride ions with mass concentration of 150-220g/L and boric acid with mass concentration of 25-35g/L at Ph value of 4.8-5.4 and at temperature of 28-35 DEG C; and the additives comprise a brightening agent of 1-12 ml/L, a walk agent of 3-30 ml/L and a disodium ethylenediamine tetraacetate complexant of 10-50 ml/L. The acidic electroplating zinc-nickel alloy electrolyte is rational in proportion and proper in matching; the galvanizing efficient is improved by 30-40% compared with the traditional acidic galvanizing; the corrosion resistance of a zinc-nickel coating can be improved remarkably and the service life of the coating is prolonged; the coating is high in hardness, corrosion resistance, abrasive resistance, pyro-oxidation resistance, compactness and comprehensive performance; the electrolyte does not need to the post-treatment technique, so that the adopted electroplating method is saved in cost, efficient and rapid, convenient in operation and far superior to the traditional alkaline zinc-nickel electroplating.

The invention discloses a preparation method for micron-size carbonyl iron and nickel alloy powder. The preparation method for the micron-size carbonyl iron and nickel alloy powder comprises the following steps that A1, Ni(co)4 is subjected to high-pressure synthesis; A2, Fe(co)5 is subjected to high-pressure synthesis; A3, Ni(co)4 is subjected to evaporation and vaporization, and a liquid Ni(co)4 compound prepared through reacting is guided into a first vaporizer at the constant speed, heated and vaporized; A4, Fe(co)5 is subjected to evaporation and vaporization, and a liquid Ni(co)5 compound prepared through reacting is guided into a second vaporizer at the constant speed, heated and vaporized; A5, premixing is conducted, specifically, vaporized Fe(co)5, Ni(co)4 vapor and ammonia gas together enter a pre-mixer through carrier tape, the ratio of iron to nickel is adjusted, and the mixed gas in the pre-mixer is guided into a thermal decomposition furnace to be subjected to thermal decomposition and alloying; and A6, gas-solid separation is conducted, and the iron-nickel alloy powder is obtained. According to the preparation method for the micron-size carbonyl iron and nickel alloy powder, operation is easy, quantity production is easy to achieve, and the cost is low; and the prepared iron-nickel alloy powder has the advantages of being uniform in iron and nickel distribution, good in pressing performance and sintering performance and the like and has excellent comprehensive mechanical performance, and the tool service life is prolonged by 10%-20%.

The invention discloses a nickel alloy automobile starting motor planetary gear and a manufacturing method thereof. The nickel alloy automobile starting motor planetary gear is prepared from, by mass, 91-94% of diffusion alloy powder, 0.5-0.8% of C element powder, 0.5-0.9% of a paraffin lubricant and 4.3-8.0% of superfine nickel powder. According to the technical scheme, direct sintering and hardening of a high-nickel alloy powder metallurgy material are adopted, and the defects that in the prior art, after a planetary gear is sintered, deformation is caused through thermal treatment, the product precision cannot meet the requirement and a starting motor is high in noise and does not resist to abrasion are overcome successfully; due to the fact that no thermal treatment is needed, the gear precision is improved, a high energy consumption procedure is omitted, the cost is lowered, the product batch consistency is ensured, and batch production is easy to achieve.

The present invention belongs to the field of additive manufacturing technology, and discloses a 4D printing method capable of in-situ regulating functional properties of nickel-titanium (NiTi) alloys and the application thereof. The method comprises the following steps: subjecting NiTi alloy bars to atomization milling to obtain NiTi alloy powder with a particle size of 15-53 μm, placing the NiTi alloy powder in a discharge plasma assisted ball mill for discharge treatment to promote the activation of powder activity, then adding nano-sized Ni powder with a particle size of 100-800 nm to obtain mixed powder, then continuing the discharge treatment to realize the metallurgical bonding between the NiTi alloy powder and the nano-sized Ni powder to obtain the modified powder, and finally using the additive manufacturing technology to prepare and form the modified powder into a functionalized NiTi alloy. The present invention achieves the metallurgical bonding between the nano-sized Ni powder and the large-sized spherical NiTi alloy powder by adding the nano-sized Ni powder in the process of discharge treatment, which is conducive to preparing a bulk alloy with uniform composition, structure and properties and the parts made therewith.

The present invention is related to a galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or nickel alloy coating characterized in that the electroplating bath comprises at least one compound having the general formula (I)

The invention relates to the technical field of paint spraying robots, and discloses an intelligent copper-nickel alloy spraying anti-corrosion robot. The intelligent copper-nickel alloy spraying anti-corrosion robot comprises a bottom plate, two air cylinders are fixedly connected to the upper surface of the bottom plate, a box body with hollow interior is fixedly connected to a position between the output ends of the two air cylinders, and spraying mechanisms are arranged on the two side faces of the box body. According to the intelligent copper-nickel alloy spraying anti-corrosion robot, a first motor drives a gear to rotate, then a gear ring drives a supporting column to rotate, the supporting column drives a spraying head to rotate, and therefore the effect of adjusting the working angle of the spraying head is achieved; a second motor is arranged, the second motor drives a worm to rotate, the worm drives a worm wheel to rotate, then a vertical rod is driven to rotate, the vertical rod drives an electric push rod to rotate through a connecting rod, then the spraying head is driven to rotate, and therefore the effect of further adjusting the working angle of the spraying head is achieved; and the electric push rod drives a mounting box and the spraying head to move, the effect of adjusting the working position of the spraying head is achieved, and therefore the effect of enlarging the working range of the device is achieved, so that different working requirements are met.