Baoshan Iron & Steel Co., Ltd.

Other

Shanghai Keygo Technologies Co., Ltd.

Hongbin Li

Xiao Xun Zhang

Bo Yan

Liandeng Yao

Yuchuan Miao

Sihai Jiao

Xiaobo Wang

Nanxiong Zhang

Xiaoting Zhao

Huijuan Shi

Jinxin Yu

Xiaojun Liang

Kougen Wu

Xiangqian Yuan

Liandeng Yai

Bao Yan

Guobin Song

Fengbin Li

Dunkai Wei

Yuchuann Miao

Disclosed is a high-strength high-toughness and wear-resistant composite steel plate, comprising a substrate layer and a composite layer of which a single side or double sides are composited on the substrate layer. The substrate layer is a carbon steel layer and the composite layer is a ultra-high manganese steel layer with a content of Mn element in the composite layer being about 16.00-25.00 wt. %. Further disclosed is a manufacturing method for making the high-strength high-toughness and wear-resistant composite steel plate. With high strength and hardness, high wear resistance and high toughness, the high-strength high-toughness and wear-resistant composite steel plate has excellent comprehensive performance.

High-strength high-toughness and wear-resistant composite steel plate and manufacturing method therefor

The present invention relates to an anti-skid speed measurement and material flow detection device for a belt conveyor, include a base symmetrically arranged on the intermediate frame of the belt conveyor and arranged between two groups of slotted roller supports, sliding supports arranged on the base, a speed measurement roller and a sensor arranged on the two groups of sliding supports, and a control system connected with the sensor, a speed measurement disk is sleeved on an end face of one end of a barrel of the speed measurement roller, a circular hole is formed on the circumference of the speed measurement disk, the circular hole is arranged corresponding to the position of the senso. Compared with the prior art, the present invention has the advantages of dramatically reduced production cost and maintenance cost, simple structure and high reliability.

Anti-skid speed measurement and material flow detection device for belt conveyor

A bulletproof steel plate with a tensile strength of 2000 MPa grade and a Brinell Hardness of 600 grade and a manufacturing method thereof, characterized by that the chemical elements in mass percentage thereof being: 0.35-0.45% of C, 0.80-1.60% of Si, 0.3-1.0% of Mn, 0.02-0.06% of Al, 0.3-1.2% of Ni, 0.30-1.00% of Cr, 0.20-0.80% of Mo, 0.20-0.60% of Cu, 0.01-0.05% of Ti, 0.001-0.003% of B, and the balance being Fe and inevitable impurities. The tensile strength of the steel plate can reach a grade of 2000 MPa and its Brinell Hardness can reach a grade of 600.

Armor plate with 2000 MPA-graded tensile strength, and manufacturing method therefor

A dual-hardness clad steel plate. One surface of the steel plate is a high-hardness layer, the other surface of the steel plate is a low-hardness layer, and a combination of atoms is achieved between the high-hardness layer and the low-hardness layer by rolling bonding, wherein Mn13 steel is adopted for the low-hardness layer, and the Brinell hardness of the high-hardness layer is greater than 600. Further disclosed is a production method of the dual-hardness clad steel plate, comprising: 1) respectively preparing a high-hardness layer slab and a low-hardness layer slab; 2) assembling: preprocessing combined faces of the slabs, carrying out peripheral welded sealing on joint faces of the slabs, and carrying out vacuumizing treatment on a composite slab after welded sealing; 3) heating; 4) carrying out composite rolling; 5) cooling; and 6) carrying out thermal treatment, wherein the heating temperature is 1050-1100&#xb0; C., the heating time is 2-3 min/mm&#xd7;slab thickness, and water cooling is performed on the heated slab, and the water temperature is lower than 40&#xb0; C. The steel plate has different hardness characteristics and good low-temperature toughness.

Dual-hardness clad steel plate and production method thereof

A high-performance low-alloy wear-resistant steel sheet and a method of manufacturing the same, which has the chemical compositions (wt %): C: 0.21-0.32%; Si: 0.10-0.50%; Mn: 0.60-1.60%; B: 0.0005-0.0040%; Cr: less than or equal to 1.50%; Mo: less than or equal to 0.80%; Ni: less than or equal to 1.50%; Nb: less than or equal to 0.080%; V: less than or equal to 0.080%; Ti: less than or equal to 0.060%; Al: 0.010-0.080%, Ca: 0.0010-0.0080%, N: less than or equal to 0.0080%, O: less than or equal to 0.0080%, H: less than or equal to 0.0004%, P: less than or equal to 0.015%, S: less than or equal to 0.010%, and (Cr/5+Mn/6+50B): more than or equal to 0.20% and less than or equal to 0.55%; (Mo/3+Ni/5+2Nb): more than or equal to 0.02% and less than or equal to 0.45%; (Al+Ti): more than or equal to 0.01% and less than or equal to 0.13%, the remainders being Fe and unavoidable impurities. The wear-resistant steel sheet of the present invention obtained by the above-mentioned compositions and TMCP process, has high strength, high hardness, good toughness, excellent wear-resistant performance, and is applicable to wearing parts in various mechanical equipments.

High-performance low-alloy wear-resistant steel plate and method of manufacturing the same

A high-toughness low-alloy wear-resistant steel sheet and a method of manufacturing the same, which has the chemical compositions (wt %): C: 0.08-0.20%; Si: 0.10-0.60%; Mn: 1.00-2.00%; B: 0.0005-0.0040%; Cr: less than or equal to 1.50%; Mo: less than or equal to 0.80%; Ni: less than or equal to 1.50%; Nb: less than or equal to 0.080%; V: less than or equal to 0.080%; Ti: less than or equal to 0.060%; Al: 0.010-0.080%, Ca: 0.0010-0.0080%, N: less than or equal to 0.0080%, O: less than or equal to 0.0080%, H: less than or equal to 0.0004%, P: less than or equal to 0.015%, S: less than or equal to 0.010%, and (Cr/5+Mn/6+50B): more than or equal to 0.20% and less than or equal to 0.55%; (Mo/3+Ni/5+2Nb): more than or equal to 0.02% and less than or equal to 0.45%; (Al+Ti): more than or equal to 0.01% and less than or equal to 0.13%, the remainders being Fe and unavoidable impurities. The present invention reduces the contents of carbon and alloy elements, and makes full use of the characteristics of refinement, strengthening, etc. of micro-alloy elements such as Nb, Ti, etc., and through TMCP process, the wear-resistant steel sheet has high strength, high hardness, good toughness, good weldability, excellent wear-resistant performance, and is applicable to wearing parts in various mechanical equipments.

High-toughness low alloy wear-resistant steel sheet and method of manufacturing method thereof the same

A high-hardness low-alloy wear-resistant steel sheet and a method of manufacturing the same, which has the chemical compositions (wt %): C: 0.33-0.45%; Si: 0.10-0.50%; Mn: 0.50-1.50%; B: 0.0005-0.0040%; Cr: less than or equal to 1.50%; Mo: less than or equal to 0.80%; Ni: less than or equal to 2.00%; Nb: less than or equal to 0.080%; V: less than or equal to 0.080%; Ti: less than or equal to 0.060%; RE: less than or equal to 0.10%; W: less than or equal to 1.00%; Al: 0.010-0.080%, Ca: 0.0010-0.0080%, N: less than or equal to 0.0080%, O: less than or equal to 0.0080%, H: less than or equal to 0.0004%, P: less than or equal to 0.015%, S: less than or equal to 0.010%, and (Cr/5+Mn/6+50B): more than or equal to 0.20% and less than or equal to 0.50%; (Mo/3+Ni/5+2Nb): more than or equal to 0.02% and less than or equal to 0.50%; (Al+Ti): more than or equal to 0.01% and less than or equal to 0.13%, the remainders being Fe and unavoidable impurities. The steel sheet obtained from the above-mentioned chemical compositions and processes, has high hardness, excellent wear-resistant performance, and is applicable to a variety of parts in mechanical equipments extremely vulnerable to wearing.

High-hardness low-alloy wear-resistant steel sheet and method of manufacturing the same

The invention provides a wear-resistant steel plate, which has the following chemical composition (wt. %): C: 0.36-0.45%, Si: 0.10-0.30%, Mn: 0.40-1.00%, P&#x2264;0.015%, S&#x2264;0.010%, Nb: 0.010-0.040%, Al: 0.010-0.080%, B: 0.0010-0.0020%, Ti: 0.005-0.050%, Ca: 0.0010-0.0080%, V&#x2264;0.080%, Cr&#x2264;1.00%, RE&#x2264;0.10%, N&#x2264;0.0080%, O&#x2264;0.0060%, H&#x2264;0.0004%, wherein the total amount of Nb and Ti is between 0.025% and 0.080%, the total amount of Al and Ti is between 0.030% and 0.12%, and the balance being Fe and unavoidable impurities. The invention also provides a method of manufacturing the wear-resistant steel plate, comprising smelting, casting, rolling, post-rolling direct cooling and other steps. The wear-resistant steel plate obtained from the above composition and process has high hardness and excellent wear resistance, and is suitable for quick-wear devices in engineering machinery, such as crusher baffle, etc.

High-hardness, high-toughness, wear-resistant steel plate and manufacturing method thereof

The invention provides a wear-resistant steel plate, which has the following chemical composition (wt. %): C: 0.22-0.35%, Si: 0.10-0.40%, Mn: 0.60-1.35%, P: &#x2266;0.015%, S: &#x2266;0.010%, Nb: 0.010-0.040%, Al: 0.010-0.080%, B: 0.0006-0.0014%, Ti: 0.005-0.050%, Ca: 0.0010-0.0080%, V&#x2266;0.080%, Cr&#x2266;0.60%, W&#x2266;1.00 wt. %, N&#x2266;0.0080%, O&#x2266;0.0060%, H&#x2266;0.0004%, wherein 0.025%&#x2266;Nb+Ti&#x2266;0.080%, 0.030%&#x2266;Al+Ti&#x2266;0.12%, and the balance of Fe and unavoidable impurities. The method of manufacturing the wear-resistant steel plate comprises the steps of smelting, casting, rolling, post-rolling direct cooling and the like. The wear-resistant steel plate obtained from the above composition and process has high strength, high hardness, good low-temperature toughness, and excellent machinability, and is suitable for quick-wear devices in engineering and mining machinery, such as bucket and scraper transporter, etc.

Ultrahigh-strength, high-toughness, wear-resistant steel plate and manufacturing method thereof

The invention provides a wear-resistant steel plate, which has the following chemical composition (wt. %): C: 0.08-0.21%, Si: 0.15-0.45%, Mn: 1.10-1.80%, P: &#x2266;0.015%, S: &#x2266;0.010%, Nb: 0.010-0.040%, Al: 0.010-0.080%, B: 0.0006-0.0014%, Ti: 0.005-0.050%, Ca: 0.0010-0.0080%, V&#x2266;0.080%, Cr&#x2266;0.60%, N&#x2266;0.0080%, O&#x2266;0.0060%, H&#x2266;0.0004%, wherein 0.025%&#x2266;Nb+Ti&#x2266;0.080%, 0.030%&#x2266;Al+Ti&#x2266;0.12%, and the balance being Fe and unavoidable impurities. The invention also provides a method of manufacturing the wear-resistant steel plate, comprising smelting, casting, rolling, post-rolling direct cooling, inter alia. The wear-resistant steel plate obtained from the above composition and process has perfect weldability, high strength, high hardness, good low-temperature toughness, and excellent machinability, and is suitable for quick-wear devices in engineering and mining machinery, such as bucket, mining vehicle body and scraper transporter, etc.

Growing community of inventors

Shanghai, China

Hongbin Li