33 results about "Chromel" patented technology

The invention provides a method for preparing chromel alloy by stainless steel pickling sludge. The method comprises the steps as follows: an alkali liquor is added into the stainless steel pickling sludge, pH is adjusted to be in a range from 6.5 to 7.5, and neutral sludge is obtained; the neutral sludge is added into a rotary kiln for drying to obtain a dry basis; the dry basis is added into a ball forming machine, and coke and starch are simultaneously added for ball forming to obtain mixed particles; the mixed particles are added into the rotary kiln for reduction smelting, the smelting temperature is simultaneously controlled in a range from 1,250 DEG C to 1,400 DEG C, and an additive is simultaneously added for an early reduction reaction for 1-2 hours to obtain metallic balls; and a hot bag containing the metallic balls is placed into an electric plasma furnace for melting and smelting to obtain the chromel alloy. With the adoption of the method, waste is changed into valuable materials, the stainless steel pickling sludge which can pollute the environment is neutralized, nickel-chromium elements are reduced to obtain the chromel alloy for metal smelting; and the chromel alloy with high recovery rate and high content is obtained through addition of an NCP additive and sodium sulfate.

An Fe-Cr-Ni alloy of a golf club head includes 13.5-14.5wt% of Cr, 3.5-4.8wt% of Ni, 0.02-0.15wt% of C, 0.02-0.15wt% of Ti, 0.02-0.15wt% of N, 0.02-0.25wt% of Al, 0.2-1.2wt% of Mn, 0.2-1.2wt% of Si, and / or 1.5-3.0wt% of Cu, and the balance Fe and other inevitable impurities generated in the alloy material casting process. The Fe-Cr-Ni alloy undergoes high-temperature normalization treatment after the casting operation to obtain a tempered martensite structure matrix and a microstructure containing a tiny amount of alumina and a titanium carbide stable phase. The golf club head made through using the Fe-Cr-Ni alloy has the advantages of simple making process, no need of any ageing treatment, good strength, good elongation rate, and no rust.

The invention discloses a method for smelting chromel alloy by stainless steel dedusting ash and laterite-nickel ore. The method comprises the steps as follows: a stainless steel dedusting ash briquette is manufactured; the stainless steel dedusting ash briquette is added into the laterite-nickel ore, the laterite-nickel ore is placed in an electric plasma furnace to be molten into a mother liquid, the temperature of the molten mother liquid ranges from1,650 DEG C-1,750 DEG C; coke is added for smelting after the mother liquid is molten completely, the smelting temperature is controlled in a range from 1,650 DEG C to 1,750 DEG C simultaneously, and an additive is simultaneously added for an early reduction reaction for 1-2 hours; after the early reduction reaction is finished, a fluxing agent and calcium carbonate are added for continuous reduction reaction for 1-2 hours, so that a metal liquid is obtained; the temperature of the metal liquid is adjusted in a range from 1,650 DEG C to 1,750 DEG C, dregs are removed, and the metal liquid is remained; and pouring is performed to form ingots. With the adoption of the method, waste is reused, so that pollution of the waste on the environment is reduced; and further, steel-making dedusting ash and the laterite-nickel ore are sufficiently combined for smelting, and the chromel alloy with high recovery rate and high content is obtained through addition of an NCP-2 additive.

The invention relates to a titanium contained high chromel alloy and application thereof in spraying materials. The components of the alloy are (by weight percentage) as follows: the content of chromium is more than or equal to 15 percent and less than or equal to 25 percent, the content of titanium is more than or equal to 1 percent and less than or equal to 6 percent, the content of silicon is more than or equal to 1 percent and less than or equal to 6 percent, the content of carbon is more than or equal to 0 percent and less than or equal to 0.02 percent, the content of nickel is more thanor equal to 20 percent and less than or equal to 55 percent, the content of rhenium is more than or equal to 0.5 percent and less than or equal to 6 percent, the content of aluminum is more than or equal to 0 percent and less than or equal to 6 percent, the content of sulfur is more than or equal to 0 percent and less than or equal to 0.035 percent, he content of phosphorus is more than or equal to 0 percent and less than or equal to 0.035 percent, the content of manganese is more than or equal to 0 percent and less than or equal to 0.2 percent, and the rest is iron. After the parts of workingequipment are sprayed at high temperature oxidation and high temperature corrosion environments by the spraying material produced by the alloy, since the coating has good high temperature oxidation and vulcanization resistance and hot corrosion resistance performances, the service life of the parts can be greatly improved.

The invention discloses a vertical dual-channel dual-machine self-synchronous vibrating inertial crusher. The device includes upper and lower vibration isolation springs, upper and lower working outer cones, upper and lower working inner cones, upper and lower working body main shafts, Upper and lower ball handles, connecting blocks, beams, hemispheres, motors A, B, couplings A, B, vibrators A, B. Feed materials to the upper and lower feed ports. At the same time, the two motors rotate in the same direction, and the vibrator is driven to excite the beam and the connecting block, as well as the upper and lower working inner cones connected to the main shaft to swing, and the upper and lower working outer cones are placed in it. The material is crushed and ground. The device uses upper and lower channels to crush materials, which greatly improves the efficiency. The dual-machine self-synchronous drive is adopted, and the two machines rotate in the same direction, which increases the power of the machine, realizes the enlargement of the equipment, increases the output, and achieves energy saving through self-synchronous drive; vibration crushing improves the crushing ratio and can crush super hard materials. Ore materials, such as chromium alloy ore, etc.