摘要:
Iron-carbon-manganese austenitic steel sheet, the chemical composition of which comprises, the contents being expressed by weight: 0.45%≦C≦0.75%; 15%≦Mn≦26%; Si≦3%; Al≦0.050%; S≦0.030%; P≦0.080%; N≦0.1%; at least one metal element chosen from vanadium, titanium, niobium, chromium and molybdenum, where 0.050%≦V≦0.50%; 0.040%≦Ti≦0.50; 0.070%≦Nb≦0.50%; 0.070%≦Cr≦2%; 0.14%≦Mo≦2%; and, optionally, one or more elements chosen from 0.0005%≦B≦0.003%; Ni≦1%; Cu≦5%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the amounts of said at least one metal element in the form of precipitated carbides, nitrides or carbonitrides being: 0.030%≦Vp≦0.150%; 0.030%≦Tip≦0.130%; 0.040%≦Nbp≦0.220%; 0.070%≦Crp≦0.6%; 0.14%≦Mop≦0.44%.
摘要翻译:铁 - 碳 - 锰奥氏体钢板,其化学组成包含:以重量表示的含量:0.45%<= C <= 0.75%; 15%<= Mn <= 26%; Si <= 3%; Al <= 0.050%; S <= 0.030%; P <= 0.080%; N <= 0.1%; 至少一种选自钒,钛,铌,铬和钼的金属元素,其中0.050%<= V <= 0.50%; 0.040%<= Ti <= 0.50; 0.070%<= Nb <= 0.50%; 0.070%<= Cr <= 2%; 0.14%<= Mo <= 2%; 和任选的一种或多种选自0.0005%<= B <= 0.003%的元素; Ni <= 1%; Cu <= 5%,由冶炼产生的由铁和不可避免的杂质构成的组成的余量,沉淀的碳化物,氮化物或碳氮化物形式的所述至少一种金属元素的量为:0.030%<= V p SUB> <= 0.150%; 0.030%<= TI SUB> <= 0.130%; 0.040%<= NB
摘要:
A probe is provided for measuring the wear of a wall in a metallurgical vessel. The probe includes at least two electrically conducting elements which extend generally mutually parallel, and a tubular sheath wherein the electrically conducting elements extend interiorly of said sheath, and are mutually insulated via a refractory insulator. The probe is adapted to be implanted in the transverse direction in the wall of a metallurgical vessel with the distal end of each of the two electrically conducting elements being disposed at the interior surface of said wall. A measurement system is connected to the opposite proximal ends of the electrically conducting elements for measuring an electrical characteristic of the circuit formed by said elements that depends on the length of the elements. The probe has a diameter less than 1 mm achieved by stretching after the components have been assembled into an intermediate assembly having a larger cross sectional area than the final cross section.
摘要:
Iron-carbon-manganese austenitic steel sheet, the chemical composition of which comprises, the contents being expressed by weight: 0.45%≦C≦0.75%; 15%≦Mn≦26%; Si≦3%; Al≦0.050%; S≦0.030%; P≦0.080%; N≦0.1%; at least one metal element chosen from vanadium, titanium, niobium, chromium and molybdenum, where 0.050%≦V≦0.50%; 0.040%≦Ti≦0.50; 0.070%≦Nb≦0.50%; 0.070%≦Cr≦2%; 0.14%≦Mo≦2%; and, optionally, one or more elements chosen from 0.0005%≦B≦0.003%; Ni≦1%; Cu≦5%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the amounts of said at least one metal element in the form of precipitated carbides, nitrides or carbonitrides being: 0.030%≦Vp≦0.150%; 0.030%≦Tip≦0.130%; 0.040%≦Nbp≦0.220%; 0.070%≦Crp≦0.6%; 0.14%≦Mop≦0.44%.
摘要:
The invention relates to a method for continuous direct casting of a metal strip, whereby said strip is cast by solidification of liquid metal in an ingot mould with cooled moving walls and a hot rolling of said strip is carried out in line, characterised in that a product is applied to the surface of the strip on exit from the ingot, which leaves a layer of lubricant on the surface when the strip is hot rolled and which causes a gas to be given off which contributes to the protection of said surface from oxidation. The invention further relates to a continuous direct casting plant for a thin metal strip, of the type comprising an ingot mould with moving cooled walls, where the solidification of said strip takes place and an in-line hot rolling unit for said solidified strip, characterised in comprising means for application of a product to the surface of said strip at the exit from the ingot, which leaves a layer of lubricant on the surface at the entry to the hot rolling unit.