摘要:
A filter device for reducing the amount of non-vaporous components in a vapour stream, including a carbon foam as filter material capable of being penetrated by the vapour stream and arranged in such a way that the only route for the vapour stream to pass the carbon foam is via penetration of the carbon foam. The device is in particular suitable for coating a substrate by physical vapour deposition of the vapour. The homogenous and single phase vapour stream produced by the filter device results in a smooth coated substrate wherein splashes are virtually absent.
摘要:
A method of operating a smelt cyclone, wherein the supply of feed material and/or the supply of oxygen containing gas through an array of tuyeres into the smelt cyclone is controlled in order to control accretions of metalliferous feed material at the inside of the smelt cyclone.
摘要:
The invention relates to a method for producing steel strip of carbon steel using a thin slab caster such as a DSP or DSC for continuously casting the carbon steel or a conventional slab caster with a hot connect to a hot rolling installation, comprising the following steps: providing a molten steel containing the following elements (in weight %): 0.06 - 0.17 C, max 3.0 Mn, 0.1 - 2.0 Al(zo), max 0.01 Ca and optionally one or more of the following elements: max 1.0 Cr, max 2.0 Si, max 1.0 Mo, max 0.1 P, max 1.0 Cu, max 2.5 Ni, max 0.2 V, max 0.2 Ti, max 0.1 Nb, max 0.01 B the remainder being Fe and unavoidable impurities; providing the molten steel to the mould of a thin slab caster or conventional slab caster with hot connect; casting the steel into a strand; cutting the strand into slabs; rolling the slabs into strips after the slabs have undergone a temperature equalizing or reheating step. The invention also relates to hot rolled and cold rolled and annealed steel strip thus produced.
摘要:
Method for manufacturing a steel product which comprises the steps of: (i) providing a steel substrate; (ii) providing a solution comprising a slag material; (iii) contacting the steel substrate with the solution comprising the slag material to form a corrosion protective layer on the surface of the steel substrate, wherein the corrosion protective layer consists mainly of a compound formed from oxides comprised in the slag material.
摘要:
The invention relates to a smelting cyclone for the production of pre-reduced molten iron oxides, wherein the smelting cyclone is provided with a first and second opening, the first opening serving as an inlet for reducing process gas and as an outlet for molten pre-reduced iron oxides and the second opening serving as an outlet for process gas, with supply means to supply iron ore into the smelting cyclone and with supply means to supply oxygen into the smelting cyclone, wherein additional heating means are provided to prevent solidification of molten iron oxides at the outlet of the smelting cyclone.
摘要:
Steel substrate suitable for forming operations which comprises a coating thereon wherein the coating comprises a corrosion resistant layer of polyamide-imide having a dry film thickness between 1 and 10 μm and wherein the layer of polyamide-imide further comprises a hydroxyamine.