The present invention provides a mold method for surface treatment of aluminum component comprising: providing straightening and rounding the aluminum component; the scraping pretreatment; the oxidation prevention and lubrication of scraping; the precise scraping of the aluminum rod. The present invention enables on-line high precision shape finishing and surface cleaning of the aluminum component which satisfies the processing requirement of providing uniformity and consistent treatment by the subsequent extrusion processing as part of the production line in order to produce high quality aluminum, aluminum alloy, aluminum bimetallic and multi-metallic composite profiles and special profiles.

A plant and a process are disclosed for producing components made of an aluminum alloy for vehicles and white goods, through the steps of: providing thixotropic billets made of an aluminum alloy; sizing the billets depending on a ratio between weight and size of the component to be produced, thereby obtaining crop ends of material; heating the crop ends in a range of temperatures during which both a solid phase and a liquid phase coexist with a prevalence in the solid phase (more than 50%) in heating means (5); loading, through loading means (9), the crop ends in an injecting vessel made of non-magnetic steel for further workings; removing, through scalping devices, an external part of the crop ends that has become cooled when passing from the heating means (5) to the loading means (9); firstly injecting the crop ends through a press; secondly injecting the crop ends through the press in 18 milliseconds by using a closed-loop control system and increasing the injection unit power with respect to a closing unit of the press; thirdly injecting the crop ends by coining the finished part in order to remove all porosities; extracting the molding through extracting means (13); depositing the molding onto a conveyor belt (15); and controlling a quality of the obtained molding, the molding being then sent to downstream mechanical workings and/or an heat treatment.

A plant and a process are disclosed for producing components made of an aluminum alloy for vehicles and white goods, through the steps of: providing thixotropic billets made of an aluminum alloy; sizing the billets depending on a ratio between weight and size of the component to be produced, thereby obtaining crop ends of material; heating the crop ends in a range of temperatures during which both a solid phase and a liquid phase coexist with a prevalence in the solid phase (more than 50%) in heating means (5); loading, through loading means (9), the crop ends in an injecting vessel made of non-magnetic steel for further workings; removing, through scalping devices, an external part of the crop ends that has become cooled when passing from the heating means (5) to the loading means (9); firstly injecting the crop ends through a press; secondly injecting the crop ends through the press in 18 milliseconds by using a closed-loop control system and increasing the injection unit power with respect to a closing unit of the press; thirdly injecting the crop ends by coining the finished part in order to remove all porosities; extracting the molding through extracting means (13); depositing the molding onto a conveyor belt (15); and controlling a quality of the obtained molding, the molding being then sent to downstream mechanical workings and/or an heat treatment.

A helical friction extrusion machine comprises a first fixed beam and a second fixed beam being arranged fixedly, a moving beam fixed to an extrusion container and an outer sliding block fixed to a forward extrusion rod that is located between the moving beam and the outer sliding block, a first main cylinder and a second main cylinder connecting to outer sliding block to drive the outer sliding block to move being fixed to second fixed beam, a perforating cylinder located on a central axis and connected to a central sliding block being further fixed to second fixed beam, a rotating platform which a rotating extrusion rod being fixed to and driven by a driving device to rotate being mounted on first fixed beam, a perforating needle being connected to perforating cylinder and fixed to male die, female die being fixed to the rotating extrusion rod, and a hopper being located above the extrusion container.

A helical friction extrusion machine comprises a first fixed beam and a second fixed beam being arranged fixedly, a moving beam fixed to an extrusion container and an outer sliding block fixed to a forward extrusion rod that is located between the moving beam and the outer sliding block, a first main cylinder and a second main cylinder connecting to outer sliding block to drive the outer sliding block to move being fixed to second fixed beam, a perforating cylinder located on a central axis and connected to a central sliding block being further fixed to second fixed beam, a rotating platform which a rotating extrusion rod being fixed to and driven by a driving device to rotate being mounted on first fixed beam, a perforating needle being connected to perforating cylinder and fixed to male die, female die being fixed to the rotating extrusion rod, and a hopper being located above the extrusion container.