[et_pb_section fb_built=”1″ fullwidth=”on” disabled_on=”off|off|on” _builder_version=”4.16″ _module_preset=”default” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_fullwidth_image src=”https:\/\/www.fonderiasala.com\/wp-content\/uploads\/2021\/07\/specifiche-tecniche-1-1024×439-1.jpg” title_text=”specifiche-tecniche-1-1024×439″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_fullwidth_image][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”0px||0px|||” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row use_custom_gutter=”on” make_equal=”on” disabled_on=”off|off|on” _builder_version=”4.16″ _module_preset=”default” background_color=”#F8941E” use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”#f8941e 50%|rgba(0,0,0,0) 50%” background_color_gradient_overlays_image=”on” background_color_gradient_start=”#f8941e” background_color_gradient_start_position=”50%” background_color_gradient_end=”rgba(0,0,0,0)” background_color_gradient_end_position=”50%” background_enable_image=”off” background_size=”initial” background_position=”center_right” width=”100%” max_width=”100%” custom_padding=”120px||120px|0px|true|” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”|50px||50px|false|true” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” text_font=”|300|||||||” text_text_color=”#FFFFFF” text_font_size=”18px” text_line_height=”1.6em” header_font_size=”50px” header_2_font=”Oswald||||||||” header_2_font_size=”50px” header_2_line_height=”1.5em” text_orientation=”center” custom_margin=”||45px|||” global_colors_info=”{}”]<\/p>\n
Foundry processes are divided into two macro-categories: moulding in expendable moulds and casting in non-expendable moulds.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” make_equal=”on” disabled_on=”on|on|off” _builder_version=”4.16″ _module_preset=”default” background_color=”#F8941E” use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”#f8941e 50%|rgba(0,0,0,0) 50%” background_color_gradient_overlays_image=”on” background_color_gradient_start=”#f8941e” background_color_gradient_start_position=”50%” background_color_gradient_end=”rgba(0,0,0,0)” background_color_gradient_end_position=”50%” background_image=”https:\/\/www.fonderiasala.com\/wp-content\/uploads\/2021\/07\/specifiche-tecniche-1-1024×439-1.jpg” background_size=”initial” background_position=”center_right” width=”100%” max_width=”100%” custom_padding=”100px||100px|0px|true|” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”|50px||50px|false|true” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” text_font=”|300|||||||” text_text_color=”#FFFFFF” text_font_size=”18px” text_line_height=”1.6em” header_font_size=”50px” header_2_font=”Roboto||||||||” header_2_font_size=”50px” header_2_line_height=”1.5em” text_orientation=”right” custom_margin=”||45px|||” global_colors_info=”{}”]<\/p>\n Foundry processes are divided into two macro-categories: moulding in expendable moulds and casting in non-expendable moulds.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” background_enable_image=”off” global_colors_info=”{}”][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ make_equal=”on” _builder_version=”4.16″ _module_preset=”default” background_color=”#FFFFFF” use_background_color_gradient=”on” background_color_gradient_direction=”270deg” background_color_gradient_stops=”#ffffff 50%|rgba(0,0,0,0) 50%” background_color_gradient_start=”#ffffff” background_color_gradient_start_position=”50%” background_color_gradient_end=”rgba(0,0,0,0)” background_color_gradient_end_position=”50%” background_image=”https:\/\/www.fonderiasala.com\/wp-content\/uploads\/2021\/08\/parallax-specifiche-tecniche.jpg” parallax=”on” parallax_method=”off” width=”100%” max_width=”100%” custom_padding=”70px||50px|0px|false|” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” background_enable_image=”off” global_colors_info=”{}”][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” background_color=”#FFFFFF” custom_padding=”|50px||50px|false|true” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” text_font=”|300|||||||” text_font_size=”18px” text_line_height=”1.6em” header_2_font=”Roboto|300|||||||” header_2_font_size=”30px” header_2_line_height=”1.5em” header_4_font_size=”38px” custom_margin=”||45px|||” global_colors_info=”{}”]<\/p>\n Moulding in expendable moulds can be carried out using a non-expendable mould, as in the case of sand casting where the mould is made of refractory material (foundry sand) and is broken at the end of the process so that the part can be extracted, or by using an expendable mould, as with lost wax casting, which is used especially for artistic castings. Non-expendable mould casting processes can be divided further into different categories depending on whether the casting of the metal into the mould is dynamic or static. In the case of dynamic casting, we have centrifugal casting, in which the mould moves, pressurised casting or die-casting, in which the liquid metal moves, and continuous casting, in which both move. On the other hand, as regards static casting, we have gravity casting, in which the molten metal is poured into the shell from above, and flows into the mould due to the force of gravity. The die-casting process, in which molten metal is injected into the mould at high pressures, is highly automated, with very short cycle times and thus very high productivity. The surface finish of the end product is further improved by the high casting pressure, which makes the material stick to the mould better.<\/p>\n An alloy of which the main constituent is aluminium and whose density is no greater than 3 kg\/dm\u00b3 is called a ‘light alloy’.<\/span><\/p>\n The mechanical characteristics are certainly among the most important properties of aluminium alloys. For some alloys, the yield point and ultimate tensile strength values approach those of some steels; the low coefficient of elasticity is a further advantage, given the considerable deformability that it allows. A density of around one third that of steel, is, however, the most important characteristic, since it reduces the weight of structures by up to 50% compared to similar steel constructions. In addition, the high general corrosion resistance boosts the life of buildings, which, amongst other things, don\u2019t need painting because of the material\u2019s attractive appearance.<\/span><\/p>\n The use of aluminium alloys in industry has grown exponentially over the years.<\/span><\/p>\n The main fields of application are:<\/strong><\/p>\n <\/strong><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”0px|||||” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_toggle title=”Influence of the elements in light alloy:” open_toggle_text_color=”#00427A” open_toggle_background_color=”#FFFFFF” closed_toggle_text_color=”#F8941E” closed_toggle_background_color=”#f7f7f7″ icon_color=”#00427A” open_icon_color=”#00427A” _builder_version=”4.27.6″ _module_preset=”default” title_text_color=”#00427A” title_font=”Oswald|–et_global_body_font_weight|||||||” title_font_size=”24px” title_line_height=”1.2em” closed_title_font=”Oswald|–et_global_body_font_weight|||||||” closed_title_font_size=”24px” hover_enabled=”0″ border_radii=”on|5px|5px|5px|5px” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\nTechnical Specifications<\/h1>\n
Foundry processes<\/h4>\n
\nWith regard to non-expendable mould casting, the mould, called a shell, is made in steel or cast iron and is not broken when the product is removed. The advantage of this method is that the same mould can be used in multiple production cycles, it can give a better surface finish and the process can be automated.<\/p>\nAluminium alloys<\/h4>\n
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<\/th> <\/th><\/tr><\/thead> COPPER<\/b><\/br> (present in amounts from 3 to 4%) <\/td> \u2022 Its hardness and tensile strength increase in proportion to its quantity;<\/br>\u2022 Improves serviceability of machine tools;<\/br>\u2022 Reduces corrosion resistance.. <\/td><\/tr> MAGNESIUM<\/b><\/br>(present in amounts of between 3 and 4%, more rarely reaching 10%) <\/td> \u2022 Increases hardness and tensile strength;<\/br>\u2022 Improves ductility, machinability and corrosion resistance;; <\/br>\u2022 In the foundry magnesium has a negative effect due to its oxidability; it also tends to shrink a lot during cooling. <\/td><\/tr> SILICON <\/td> \u2022 Increases tensile strength;<\/br>\u2022 Corrosion resistance decreases, albeit slightly;<\/br>\u2022 The serviceability of machine tools is considerably reduced. <\/td><\/tr> MANGANESE <\/td> \u2022 Increases tensile strength and resilience;<\/br>\u2022 Improves corrosion resistance and ductility. <\/td><\/tr> ZINC <\/td> \u2022 Increases tensile strength;<\/br>\u2022 Increases deformability;<\/br>\u2022 Strongly decreases corrosion resistance;<\/br>\u2022 Increases hot-shortness. <\/td><\/tr> IRON <\/td> \u2022 Improves mechanical properties at high temperatures;<\/br>\u2022 Reduces hot-shortness; <\/td><\/tr><\/tbody><\/table><\/div>