Methods of applying an inorganic material to a metal substrate that includes a metallic material having an austenite transformation temperature. The method includes depositing inorganic particles onto a surface of the metal substrate. In some embodiments, methods may include depositing inorganic particles at a deposition temperature that does not cause the metallic material to exceed the austenite transformation temperature. The inorganic particles deposited onto the surface of the metal substrate may form an abrasion-resistant coating on the surface of the metal substrate. The difference between the coefficient of thermal expansion of the metallic material and the coefficient of thermal expansion of the abrasion-resistant coating may be 10×10.sup.−6/degrees C. or less.

The present invention relates to tool, die, piece or mould, which, in use, is able to transfer heat out, in and/or through it, and where high mechanical and/or tribological loads have to be withstand at least in one area of the component. The invention also relates to several steel compositions with high fracture toughness and/or high resistance to decarburization comprised in the tool, die, piece or mould of the invention.

The present disclosure provides methods for preparing an extruded product from a solid billet. The methods can include providing an as-cast billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the as-cast billet to plasticize the as-cast billet; and extruding the plasticized as-cast billet with an extrusion die to form an extruded product. Methods for preparing extruded products from billets can also include: providing a billet for extrusion; while maintaining a majority of the billet below 100° C., applying a simultaneous rotational shear and axial extrusion force to one end of the billet to plasticize the one end of the billet; and extruding the plasticized one end of the billet with an extrusion die to form an extruded product. Methods for preparing an extruded product from a billet can also include providing a billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the billet to plasticize the billet; extruding the plasticized billet with an extrusion die to form an extruded product; and artificially aging the extruded product for less than the ASTM recommended amount of time.

The disclosure aims to provide a structural member made of an extruded material that effectively helps to reduce weight while ensuring strength and rigidity. The structural member has a varied wall thickness along an extrusion direction.

The disclosure aims to provide a structural member made of an extruded material that effectively helps to reduce weight while ensuring strength and rigidity. The structural member has a varied wall thickness along an extrusion direction.

Since the cross-sectional area of the plastic deforming portion of the extrusion die gradually decreases from the starting end portion toward the terminal end portion, the pressure applied to the molded body in hot deforming is not loosened, hence, the occurrence of cracks can be effectively suppressed.

An extrusion press machine includes: a die configured to extrusion-mold a workpiece; a cylinder configured to apply pressing force to press the workpiece against the die; and a platen configured to receive the pressing force from the die. The platen includes an outside element and an inside element that is disposed coaxially with the outside element, inside the outside element. The inside element includes one or more fluid supply structures each supplying a cooling medium toward an extruded product extruded from the die.

A method for producing seamless pipes and an extruder are provided, including: S1, sleeving an ingot holding cylinder on an upsetting shaft and feeding an aluminum bar; S2, moving the ingot holding cylinder backwards; S3, squeezing the aluminum bar by an extrusion plug; S4, after upsetting, moving the ingot holding cylinder and the extrusion plug back to one side away from the upsetting shaft; S5, removing the upsetting shaft and installing a mold on the mold shaft; S6, perforating the aluminum bar after upsetting by a perforating needle; S7, extruding the perforated aluminum bar by the extrusion plug. The aluminum bar after upsetting keeps the same central axis as the extruder centerline and the ingot holding cylinder. The seamless pipes extruded from the mold are uniform, thereby improving their concentricity and finished product rate.

One or more hollow billets are loaded onto an elongate mandrel bar for extrusion. The billets are transported along the mandrel bar to a rotating die. The billets are transported through fluid clamps, which engage the mandrel bar and provide cooling fluid to the mandrel bar tip, and through mandrel grips, which engage the mandrel bar and prevent the mandrel bar from rotating. One or more press-rams advance the billets through a centering insert and into the rotating die. A quench assembly is provided at an extrusion end of the extrusion press to quench the extruded material. A programmable logic controller may be provided to control, at least in part, operations of the extrusion press system.

One or more hollow billets are loaded onto an elongate mandrel bar for extrusion. The billets are transported along the mandrel bar to a rotating die. The billets are transported through fluid clamps, which engage the mandrel bar and provide cooling fluid to the mandrel bar tip, and through mandrel grips, which engage the mandrel bar and prevent the mandrel bar from rotating. One or more press-rams advance the billets through a centering insert and into the rotating die. A quench assembly is provided at an extrusion end of the extrusion press to quench the extruded material. A programmable logic controller may be provided to control, at least in part, operations of the extrusion press system.