SMS GROUP GMBH

The present disclosure relates to a method and a smelting unit ( 1 ) for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M) in the presence of an oxidizing, reducing and/or inert gas (G).

A device and method for producing a rolled metal strip including a rolling mill which plastically deforms the metal strip by rolling during transport along a conveying direction; a cooling device with variable cooling capacity, which is downstream of the rolling mill in the conveying direction and cools the metal strip; a straightening machine which is downstream of the cooling device in the conveying direction and bends the metal strip into a desired shape; a first measuring point, arranged between the rolling mill and the cooling device, with a flatness measuring device measuring topological properties of the metal strip; a second measuring point, arranged between the cooling device and the straightening machine, with a further flatness measuring device measuring topological properties of the metal strip; and a controller.

A ring-rolling mill ( 1 ) includes a machine table ( 2 ) for accommodating the rolled material ( 3 ) and an axial stand ( 4 ) that supports at least one axial roll, preferably two axial rolls ( 5, 6 ), for rolling the end faces ( 7, 8 ) of the rolled material ( 3 ). The ring-rolling mill and a method for operation thereof facilitate rapid product change without elaborate setting-up or without conversion of the rolling mill. For that purpose at least one pressure roll, preferably two pressure rolls ( 9, 10 ), for rolling the outer circumference ( 11 ) of the rolled material ( 3 ) is further arranged on the axial stand ( 4 ). The at least one pressure roll ( 9, 10 ) is arranged so as to be translationally displaceable relative to the axial stand ( 4 ).

A method for the production of a hot-rolled strip from a fine-grained steel material with a thickness of d WB ≤1.75 mm and an average ferrite grain size of g s ≤5 μm is disclosed. A previously necessary heat treatment of the hot strip to adjust the mechanical properties is avoided by an optimized rolling and cooling strategy.

A cooling module of a cooling device for cooling a hot-rolled metal strip-shaped product using a coolant, the cooling module includes at least one cooling bar including a coolant chamber and a plurality of coolant outlet pipes connected to the coolant chamber to fluidically communicate therewith and each include at least one coolant outlet opening for applying the coolant to the strip-shaped product; at least one coolant feed connected to the coolant chamber to fluidically communicate therewith, the coolant feed is configured to connect to a coolant reservoir to fluidically communicate therewith, the coolant reservoir is configured to provide a pressure difference between the coolant reservoir and the coolant outlet opening; and at least one coolant valve arranged between the coolant feed and the coolant chamber; wherein the cooling module further includes time-variant behavior of a coolant rate in the coolant outlet opening.

A method for producing a thread on at least one end of at least one metal tube ( 3 ) by machining the metal tube ( 3 ) in at least one CNC-controlled machine tool ( 2 ) comprises an optical measurement of the thread during the thread-cutting process and/or following the thread-cutting process, and the electronic detection and evaluation of the measurement data of the thread profile and/or of a sealing lip ( 6 ) of the thread, and the derivation of control commands for controlling the machine tool ( 2 ) from the measurement data with use of at least one closed-loop control unit coupled to the machine tool ( 2 ). A corresponding thread-cutting facility is also disclosed.

SUBSTITUTE SPECIFICATION CLEAN COPY A reel device has a reel mandrel for winding up a strip. The reel mandrel has a plurality of segments distributed over the perimeter thereof, which are each joined via at least two link plates to a control rod that can be axially moved in the reel mandrel, for radially extending and retracting the segment. To reliably identify wear conditions of internal components of the reel mandrel that are not visible from the outside, a method for operating the reel device provides that, during the service life of the reel device, the segments are moved multiple times into certain operating positions and in each case the respective distances of the segments in relation to a stationary operating position are determined. The distances recorded at different points in time are evaluated whether they exceed or fall below a predefined threshold value, and wear condition is inferred therefrom.

An insulating die plate includes two parallel end plates and an insulating layer arranged therebetween which includes ceramic insulating bodies. An insulating body plane parallel to the end plates is defined for the insulating layer. Intermediate spaces are arranged on the insulating body plane between the insulating bodies. A total insulating layer area includes at least surface insulating body portions and surface intermediate space portions. In each section through the insulating bodies parallel to the insulating body plane, an insulating body surface portion in the total insulating layer area is at least 50%, the insulating bodies are symmetrically formed, with the top side equal to the bottom side of the insulating body and each insulating body designed as a plate having a height and a maximum width at least 2.5 times wider than the height of the insulating body; and/or the insulating bodies are anisotropically shaped.

Tracing forged parts over their production process includes: capturing process parameters of a forging process; marking a workpiece with a first identifier; storing the captured process parameters and the first identifier in a database; reading the identifier from the workpiece produced in the previous process step; capturing process parameters during subsequent process steps; storing the process parameters of the subsequent process steps in the database for the read identifier, if legibility of the first identifier of the workpiece remains during the subsequent process step; marking the workpiece produced in the subsequent process step with a further identifier, if legibility of the first identifier of the workpiece does not remain during the subsequent process step of the production process; and storing the process parameters of the subsequent process step together with the further identifier and process parameters of the previous process steps and the first identifier in the database.

A burner comprises a primary nozzle for injecting an oxygen-rich gas. The primary nozzle is designed as a supersonic nozzle. A coaxial nozzle having an annular outlet opening is provided for injecting a fuel gas. The coaxial nozzle is designed as a subsonic nozzle and is coaxial to the primary nozzle. The primary nozzle has a convergent portion and a divergent portion, which adjoin each other at a radius of the narrowest cross-section. The annular outlet opening is located at an end face of the burner. The fuel gas, in the form of hydrogen or a mixture of hydrogen and a hydrocarbon-containing gas, is injected at a fixed inlet pressure and a fixed inlet volumetric flow rate, with respect to a planned thermal power of the burner. In contrast, the inlet pressure and the inlet volumetric flow rate of the oxygen-rich gas are varied according to the application.