Abstract: A tool steel, in particular a hot-work steel, has the following composition: 0.26 to 0.55% by weight C; less than 2% by weight Cr; 0 to 10% by weight Mo; 0 to 15% by weight W; wherein the W and Mo contents in total amount to 1.8 to 15% by weight; carbide-forming elements Ti, Zr, Hf, Nb, Ta forming a content of from 0 to 3% by weight individually or in total; 0 to 4% by weight V; 0 to 6% by weight Co; 0 to 1.6% by weight Si; 0 to 2% by weight Mn; 0 to 2.99% by weight Ni; 0 to 1% by weight S; remainder: iron and inevitable impurities. The hot-work steel has a significantly higher thermal conductivity than known tool steels.

Abstract: The present invention relates to tool steels which present an extremely high conductivity while maintaining high levels of mechanical properties the manufacturing process thereof. Tool steels of the present invention are able to undergo low temperature hardening treatments with good homogeneity of the microstructure and can be obtained at low cost.

Abstract: The present invention relates to a tool steel as described in WO2012095532A1 or WO2010112319A1 and its heat treatment where high levels of thermal diffusivity, mechanical resistance, wear resistance and/or toughness are attained while having a low cracking risk during the heat treatment. It is achieved by austenitizing at a temperature, normally above AC3, cooling to an intermediate temperature below AC1 and above the temperature where bainitic (and alike) transformation occurs and finally quenching with a severe cooling media to a temperature below the bainitic transformation nose. Final microstructure is mainly composed of martensite and/or lower bainite, which will generally be afterwards tempered.

Abstract: The invention relates to a method that has been developed to obtain good toughness and homogeneous properties through heavy sections in tool steels or likely highly alloyed steels. The microstructure attained is mostly bainitic. The method is especially good for hot work tool steels in applications demanding heavy sections and very high toughness. The method consists on the application of a low temperature bainitic transformation to tool steels presenting a low enough martensite transformation temperature (Ms). Additionally or alternatively cementite is replaced from the bainite by other finer carbides, mainly mixed carbides containing elements with stronger affinity for carbon than iron. The method is especially simple if applied to steels with high contents of Si or Al (>1.3% and >0.4% respectively) where cementite growth is impaired. The method works also well for low cost plastic injection moulding and structural steels. Even some higher alloyed tool steels can benefit from, the present method.

Abstract: A hot work tool steel family with exceptional thermal difusivity, toughness (both fracture toughness and notch sensitivity resilience CVN—charpy V-notch) and trough hardenability has been developed. Mechanical resistance and yield strength at room and high temperatures (above 600° C.) are also high, because the tool steels of the present invention present a high alloying level despite the high thermal conductivity. Given the exceptional resistance to thermal fatigue and thermal shock, wear resistance can be severely increased for many applications requiring simultaneously resistance to thermal cracking and wear like is the case for some forging and some parts of die casting dies.

Abstract: A hot work tool steel family with exceptional thermal diffusivity, toughness (both fracture toughness and notch sensitivity resilience CVN—charpy V-notch) and trough hardenability has been developed. Mechanical resistance and yield strength at room and high temperatures (above 600° C.) are also high, because the tool steels of the present invention present a high alloying level despite the high thermal conductivity. Given the exceptional resistance to thermal fatigue and thermal shock, wear resistance can be severely increased for many applications requiring simultaneously resistance to thermal cracking and wear like is the case for some forging and some parts of die casting dies.

Abstract: The present invention develops dies, moulds, tools, workpieces and structures with active protection against corrosion (cathodic protection) in cooling circuits, often internal, independent of its complexity. Moreover, the protection can be renewed if considered appropriate. The protection is achieved through a thin coating layer which contains metallic elements more electronegative than the substrate to be protected and which is properly adhered to the mentioned substrate in order to ensure an efficient cathodic protection.

Abstract: A tool steel, in particular a hot-work steel, has the following composition: 0.26 to 0.55% by weight C; less than 2% by weight Cr; 0 to 10% by weight Mo; 0 to 15% by weight W; wherein the W and Mo contents in total amount to 1.8 to 15% by weight; carbide-forming elements Ti, Zr, Hf, Nb, Ta forming a content of from 0 to 3% by weight individually or in total; 0 to 4% by weight V; 0 to 6% by weight Co; 0 to 1.6% by weight Si; 0 to 2% by weight Mn; 0 to 2.99% by weight Ni; 0 to 1% by weight S; remainder: iron and inevitable impurities. The hot-work steel has a significantly higher thermal conductivity than known tool steels.

Abstract: A tool steel family with outstanding thermal diffusivity, hardness and wear resistance has been developed, also exhibiting good hardenability. Also its mechanical strength, as well as its yield strength, at ambient and high temperature (superior to 600° C.) are high, due to a high alloying level in spite of the high thermal conductivity. Because of its high thermal conductivity and good toughness, steels of this invention have also good resistance to thermal fatigue and thermal shock. This steels are ideal for discontinuous processes where it is interesting to reduce cycle time and that require high hardness and/or wear resistance (plastic injection molding, other plastic forming processes and curing of thermosets, hot forming of sheet . . . ). These tool steels are also appropriate for processes requiring high wear resistance and good resistance to thermal fatigue (forging, hot stamping, light-alloy injection . . . ).

Abstract: A tool steel, in particular a hot-work steel, has the following composition: 0.26 to 0.55% by weight C; less than 2% by weight Cr; 0 to 10% by weight Mo; 0 to 15% by weight W; wherein the W and Mo contents in total amount to 1.8 to 15% by weight; carbide-forming elements Ti, Zr, Hf, Nb, Ta forming a content of from 0 to 3% by weight individually or in total; 0 to 4% by weight V; 0 to 6% by weight Co; 0 to 1.6% by weight Si; 0 to 2% by weight Mn; 0 to 2.99% by weight Ni; 0 to 1% by weight S; remainder: iron and inevitable impurities. The hot-work steel has a significantly higher thermal conductivity than known tool steels.

Abstract: The present invention is directed to a method for the production of highly demanded pieces at low cost. The method is especially well suited for deep drawing dies, but also any other type of tooling. It is also very well suited for machine components of big dimensions and with high mechanical solicitations, like rotors and cages in wind mills and other big machines. The pieces or tools are cast with a low cost ceramic, like a high resistance concrete (with special mention to HPC or UHPC) or a low water admixture castable or any other low cost high mechanical resistance material (low cost ceramics or high resistance polymers are especially suited). Once cast, the working surface of the die or piece is coated with a metal, an intermetallic or a high performance ceramic. Projection or deposition techniques are used to obtain the high value working surface.

Abstract: A hot work tool steel family with exceptional thermal diffusivity, toughness (both fracture toughness and notch sensitivity resilience CVN—charpy V-notch) and trough hardenability has been developed. Mechanical resistance and yield strength at room and high temperatures (above 600° C.) are also high, because the tool steels of the present invention present a high alloying level despite the high thermal conductivity. Given the exceptional resistance to thermal fatigue and thermal shock, wear resistance can be severely increased for many applications requiring simultaneously resistance to thermal cracking and wear like is the case for some forging and some parts of die casting dies.

Abstract: A method for producing a workpiece, particularly a shaping tool or a part of a shaping tool, includes the following steps: providing a heat-resistant mold (2) with a first molded part (2a) and at least a second molded part (2b) in a chamber that can be evacuated (1); filling a metal-containing material into the heat-resistant mold (2); producing a vacuum in the chamber that can be evacuated (1); heating the metal-containing material; compressing the heated metal-containing material in the heat-resistant mold (2) by hot pressing under vacuum conditions. The present invention further relates to a device for producing a workpiece, particularly a shaping tool or a part of a shaping tool.

Abstract: The present invention is directed to a method for the production of highly demanded pieces at low cost. The method is especially well suited for deep drawing dies, but also any other type of tooling. It is also very well suited for machine components of big dimensions and with high mechanical solicitations, like rotors and cages in wind mills and other big machines. The pieces or tools are cast with a low cost ceramic, like a high resistance concrete (with special mention to HPC or UHPC) or a low water admixture castable or any other low cost high mechanical resistance material (low cost ceramics or high resistance polymers are especially suited). Once cast, the working surface of the die or piece is coated with a metal, an intermetallic or a high performance ceramic. Projection or deposition techniques are used to obtain the high value working surface.

Abstract: A tool steel, in particular a hot-work steel, has the following composition: 0.26 to 0.55% by weight C; less than 2% by weight Cr; 0 to 10% by weight Mo; 0 to 15% by weight W; wherein the W and Mo contents in total amount to 1.8 to 15% by weight; carbide-forming elements Ti, Zr, Hf, Nb, Ta forming a content of from 0 to 3% by weight individually or in total; 0 to 4% by weight V; 0 to 6% by weight Co; 0 to 1.6% by weight Si; 0 to 2% by weight Mn; 0 to 2.99% by weight Ni; 0 to 1% by weight S; remainder: iron and inevitable impurities. The hot-work steel has a significantly higher thermal conductivity than known tool steels.