50results about How to "Conserve limited resources" patented technology

The invention discloses a high carbon high alloy steel wear-resisting ball which comprises the chemical components by weight percentage as follows: 1.0-1.4% of C, 1.6-2.2% of Si, 1.0-1.2% of Mn, 8.5-9.5% of Cr, 1.2-1.5% of Mo, 0.5-1.0% of Cu, 0.5-0.8% of V, 0.15-0.3% of Ti, 0.08-0.12% of B, 0.05-0.08% of Ce, 0.02-0.04% of Y, 0.02-0.03% of Nd, P greater than or equal to 0.05%, S greater than or equal to 0.05%, and the balance of Fe. According to the invention, the high carbon high alloy steel wear-resisting ball which uses Si, Mn and Cr as main alloy elements and where an appropriate amount of Mo, V, Ti, B, Cu and rare earth are added is prepared by optimizing material formula, regulating the casting and melting process and combining a reasonable thermal processing method. The ball and the method have the characteristics of high hardness, high tenacity, high impact resistance, good wear resistance and the like.

The invention relates to a process for treating electroplating sludge. The invention not only can eliminate the poisonous and harmful substances in the electroplating sludge, but also solves the technical problem of high treatment cost. The resource treatment process of the electroplating sludge comprises the following steps: a, ingredients: after the electroplating sludge is dried by a dryer, it is mixed with flux and coke according to the weight ratio of 100:15~71:50~88 ; b. Smelting: Stir and mix the above-mentioned materials with a good proportion, put them into a melting furnace for smelting reduction smelting at a temperature of 1400°C to 1600°C, and release the nickel-copper alloy obtained by smelting reduction through the alloy port , The liquid slag is released from the slag outlet; c. Tail gas treatment: the tail gas obtained during the above smelting is treated by the purification system and then emptied. The present invention has fast main reaction speed, high nickel recovery rate, forward charging, low batching cost, and overcomes the viscous slag and easy formation of nodules during reduction smelting of electroplating sludge, difficulty in descending furnace charge, extremely short furnace life, and frequent death Furnace problem.

The invention discloses a high-performance multi-alloy wear-resistant ball, and a preparation process and a thermal treatment method thereof. The high-performance multi-alloy wear-resistant ball consists of the following components in percentage by weight: 2.0 to 2.6% of C, less than or equal to 1.0% of Si, 1.6 to 2.0% of Mn, more than or equal to 27% of Cr, 0.05 to 0.15% of Re, less than or equal to 0.05% of P, less than or equal to 0.05% of S, less than or equal to 0.3% of Mo, 0.1 to 0.3% of Ni, 0.05 to 0.08% of Al and the balance of Fe. When the high-performance multi-alloy wear-resistant ball is prepared, a metal mold sand coating process is adopted for formation, the thickness of a sand coating layer is controlled to be 1.5 mm to 3.5 mm, and the diameter of the wear-resistant ball is controlled to be phi 50 mm to phi 130 mm. According to the high-performance multi-alloy wear-resistant ball, and the preparation method and the thermal treatment method thereof, the high-performance multi-alloy wear-resistant ball obtained by adjusting the contents of C, Si, Mn, Cr, Re, P, S, Mo, Ni and Al elements, controlling the thickness of the sand coating layer in a preparation process and adjusting the thermal treatment method process in a thermal treatment process has high mechanical properties, strong impact toughness and small unit wear.

The invention relates to a ground speed detection method suitable for a fiber optic gyro strapdown inertial navigation system, and relates to a rowing compensation method. It solves the problem that the rowing effect affects the accuracy of ground speed detection in a high dynamic environment or a high frequency vibration environment. The present invention obtains the velocity measurement increment and the angle increment measurement value of the carrier relative to the inertial coordinate system by the specific force signal and the angular velocity signal respectively in the ground speed update period, and then obtains the velocity rotation item; at the same time, the specific force signal and the angular velocity signal The cross-product item of is fitted to obtain the rowing compensation item; the velocity increment of the carrier relative to the inertial coordinate system in the update cycle is calculated by the speed rotation item and the rowing compensation item, and then the obtained velocity increment is projected into the navigation coordinate system n, Calculate the speed increment caused by the acceleration of gravity and Coriolis acceleration in the navigation coordinate system n, and finally calculate the ground speed value through the basic equation of the inertial navigation system. The present invention is suitable for the situation that the carrier is in high frequency vibration or high maneuverability.

The invention discloses a multielement microalloy low chromium white iron grinding ball which comprises the chemical components by weight percentage as follows: 2.4-2.7% of C, 0.5-0.8% of Si, 1.2-1.5% of Mn, 2.4-2.8% of Cr, 0.2-0.3 of Mo, 0.08-0.15% of W, 0.3-0.5% of Cu, 0.08-0.14% of V, 0.02-0.04% of Ti, 0.015-0.03% of B, 0.08-0.12% of Y, 0.05-0.08% of Ce, P smaller than or equal to 0.05%, S smaller than or equal to 0.05%, and the balance of Fe. According to the invention, wear resistance, high hardness, high tenacity and high impact resistance of the grinding ball are ensured by optimizing material formula to low chromium white iron, regulating the casting and melting process and combining a reasonable thermal processing method. Not only is production efficiency of a ball grinding mill improved, but also the production cost and energy consumption are further effectively reduced, the limited resources are saved, and extremely high economical value and social benefit are obtained.