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1. 发明申请

WO2012128397A1 METHOD OF ALLOYING SULPHUR USING THE REACTION CHAMBER AND THE HIGH SULPHUR CAST STEEL MADE THEREBY 审中-公开
标题翻译：使用反应室和高硫磺铸铁合金硫磺的方法
公开(公告)号：WO2012128397A1
公开(公告)日：2012-09-27
申请号：PCT/KP2011/000025
申请日：2011-10-17
申请人： O, SungBong
发明人： O, SungBong
IPC分类号： C21B3/02 , C22C38/60 , B22D11/103 , B22D11/108 , B22D27/18 , B22D41/05
CPC分类号： B22D1/007 , B22D27/18 , C22C38/02 , C22C38/04 , C22C38/60
摘要： The present invention relates to a method of alloying cast steel with sulphur in a sand mold for making the high sulphur cast steel, and to produce High Sulphur Cast Steel, the antifriction and wear resistance material that has high impact value and doesn't include any expensive alloying elements. To be concrete, the invention relates to a method of alloying cast steel with sulphur in a reaction chamber which is set up at the bottom of the spout in a sand mold. Some amount of sulphur is put in the reaction chamber and it is covered with the chips of cast iron. (Fig.2) In case of applying the present method, 92 to 98% of sulphur is absorbed into cast steel. As regards the high sulphur cast steel made by the method according to the invention, the chemical composition is C 0.14 to 0.38%, Si 0.17 to 0.37%, Mn 0.1 to 0.5%, P 0.03% or less and S 0.5 to 3.8% at weight ratio, the tensile strength is 340 to 470MPa, the elongation percentage is 8 to 15%, the impact value is 0.20 to 0.30MJ/m 2 , the hardness is 105 to 150HB, the coefficient of friction is 0.006 to 0.009 and the abrasive quantity is 1/7 to 1/10 of copper alloy. The method according to the present invention is applicable to the production of the high sulphur cast steel which is used instead of copper alloy for making sliding bearing, angle screw, worm gear, slider, etc. working in lubricating oil on the condition with the maximum permissible pressure [P], 8.5MPa, the maximum permissible linear velocity [V], 18.23m/s, and the permissible [PV], 18MPa⋅m/s. In addition, the method according to the present invention is also applicable to making all the High Sulphur Cast Steel including antifriction and wear-resistance steel and free cutting steel that contain some sulphur. The method according to the present invention does not cause environment pollution and pollution of furnace and it is easy to adjust the proper content of sulphur correctly.
摘要翻译：本发明涉及一种在用于制造高硫铸钢的砂模中合金化铸钢和硫的方法，并且生产高硫硫钢，具有高冲击值的耐磨损和耐磨材料，并且不包括任何昂贵的合金元素。具体而言，本发明涉及一种将反应室中的铸钢与硫合金化的方法，该反应室设置在喷砂头底部的砂模中。将一定量的硫放入反应室中，并用铸铁芯片覆盖。（图2）在应用本方法的情况下，92〜98％的硫被吸收到铸钢中。关于通过本发明的方法制造的高硫铸钢，化学成分为C 0.14〜0.38％，Si 0.17〜0.37％，Mn 0.1〜0.5％，P 0.03％以下，S：0.5〜3.8％重量比，拉伸强度为340〜470MPa，伸长率为8〜15％，冲击值为0.20〜0.30MJ / m2，硬度为105〜150HB，摩擦系数为0.006〜0.009，磨耗量是铜合金的1/7至1/10。根据本发明的方法适用于生产高硫铸钢，代替用于制造滑动轴承，角螺杆，蜗轮，滑块等的铜合金，在最大的条件下在润滑油中工作允许压力[P]，8.5MPa，最大允许线速度[V]，18.23m / s，允许[PV]，18MPa·m / s。此外，根据本发明的方法还可用于制造包含耐硫钢和含有一些硫的自由切削钢的所有高硫铸钢。根据本发明的方法不会引起环境污染和炉的污染，并且容易正确地调节硫的适当含量。

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