\n\t
Die casting<\/strong> er en fremstillingsproces, der kan producere geometrisk komplekse metaldele ved brug af genanvendelige forme, kaldet matricer. Die-casting-processen involverer brugen af \u200b\u200ben ovn, metal, die-casting maskine og die. Metallet, typisk en ikke-jernholdig legering, s\u00e5som aluminium eller zink, smeltes i ovnen og injiceres derefter i matricerne i trykst\u00f8bemaskinen. Der er to hovedtyper af trykst\u00f8bemaskiner - varmekammermaskiner (anvendes til legeringer med lave smeltetemperaturer, s\u00e5som zink) og koldkammermaskiner (bruges til legeringer med h\u00f8je smeltetemperaturer, s\u00e5som aluminium). Forskellene mellem disse maskiner vil blive beskrevet i afsnittene om udstyr og v\u00e6rkt\u00f8j. Efter at det smeltede metal er injiceret i matricerne, afk\u00f8les det imidlertid i begge maskiner hurtigt og st\u00f8rkner til den sidste del, kaldet st\u00f8bning. Trinene i denne proces er beskrevet mere detaljeret i det n\u00e6ste afsnit.<\/p>\nDe st\u00f8begods, der oprettes i denne proces, kan variere meget i st\u00f8rrelse og v\u00e6gt og sp\u00e6nder fra et par ounce til 100 pund. En almindelig anvendelse af st\u00f8bte dele er huse - tynde v\u00e6gge, der ofte kr\u00e6ver mange ribben og knaster p\u00e5 indersiden. Metalhuse til forskellige apparater og udstyr er ofte st\u00f8bt. Flere bilkomponenter fremstilles ogs\u00e5 ved hj\u00e6lp af trykst\u00f8bning, herunder stempler, topstykker og motorblokke. Andre almindelige trykst\u00f8bte dele inkluderer propeller, gear, b\u00f8sninger, pumper og ventiler.<\/p>\n
St\u00f8bte dele kan variere meget i st\u00f8rrelse og kr\u00e6ver derfor disse foranstaltninger for at d\u00e6kke et meget stort interval. Som et resultat er trykst\u00f8bemaskiner designet til hver at rumme et lille interval af dette st\u00f8rre spektrum af v\u00e6rdier. Eksempelspecifikationer for flere forskellige varmekammer- og koldkammerst\u00f8bemaskiner er angivet nedenfor.<\/p>\n
\n\n\n| Type<\/td>\n | Clamp force (ton)<\/td>\n | Max. shot volume (oz.)<\/td>\n | Clamp stroke (in.)<\/td>\n | Min. mold thickness (in.)<\/td>\n | Platen size (in.)<\/td>\n<\/tr>\n |
\n| Hot chamber<\/td>\n | 100<\/td>\n | 74<\/td>\n | 11.8<\/td>\n | 5.9<\/td>\n | 25 x 24<\/td>\n<\/tr>\n |
\n| Hot chamber<\/td>\n | 200<\/td>\n | 116<\/td>\n | 15.8<\/td>\n | 9.8<\/td>\n | 29 x 29<\/td>\n<\/tr>\n |
\n| Hot chamber<\/td>\n | 400<\/td>\n | 254<\/td>\n | 21.7<\/td>\n | 11.8<\/td>\n | 38 x 38<\/td>\n<\/tr>\n |
\n| Cold chamber<\/td>\n | 100<\/td>\n | 35<\/td>\n | 11.8<\/td>\n | 5.9<\/td>\n | 23 x 23<\/td>\n<\/tr>\n |
\n| Cold chamber<\/td>\n | 400<\/td>\n | 166<\/td>\n | 21.7<\/td>\n | 11.8<\/td>\n | 38 x 38<\/td>\n<\/tr>\n |
\n| Cold chamber<\/td>\n | 800<\/td>\n | 395<\/td>\n | 30.0<\/td>\n | 15.8<\/td>\n | 55 x 55<\/td>\n<\/tr>\n |
\n| Cold chamber<\/td>\n | 1600<\/td>\n | 1058<\/td>\n | 39.4<\/td>\n | 19.7<\/td>\n | 74 x 79<\/td>\n<\/tr>\n |
\n| Cold chamber<\/td>\n | 2000<\/td>\n | 1517<\/td>\n | 51.2<\/td>\n | 25.6<\/td>\n | 83 x 83<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Valget af et materiale til trykst\u00f8bning er baseret p\u00e5 flere faktorer, herunder densitet, smeltepunkt, styrke, korrosionsbestandighed og omkostninger. Materialet kan ogs\u00e5 p\u00e5virke delens design. For eksempel kan brugen af zink, som er et meget duktilt metal, muligg\u00f8re tyndere v\u00e6gge og en bedre overfladefinish end mange andre legeringer. Materialet bestemmer ikke kun egenskaberne ved den endelige st\u00f8bning, men p\u00e5virker ogs\u00e5 maskinen og v\u00e6rkt\u00f8jet. Materialer med lave smeltetemperaturer, s\u00e5som zinklegeringer, kan st\u00f8bes i en varmekammermaskine. Imidlertid kr\u00e6ver materialer med en h\u00f8jere smeltetemperatur, s\u00e5som aluminium og kobberlegeringer, anvendelse af koldkammermaskine. Smeltetemperaturen p\u00e5virker ogs\u00e5 v\u00e6rkt\u00f8jet, da en h\u00f8jere temperatur vil have en st\u00f8rre negativ indvirkning p\u00e5 matricens levetid.<\/p>\n \n\n\n| \n Materials<\/p>\n<\/td>\n | \n Properties<\/p>\n<\/td>\n<\/tr>\n | \n| Aluminum alloys<\/td>\n | \u00b7Low density
\n\u00b7Good corrosion resistance
\n\u00b7High thermal and electrical conductivity
\n\u00b7High dimensional stability
\n\u00b7Relatively easy to cast
\n\u00b7Requires use of a cold chamber machine<\/td>\n<\/tr>\n | \n| Copper alloys<\/td>\n | \u00b7High strength and toughness
\n\u00b7High corrosion and wear resistance
\n\u00b7High dimensional stability
\n\u00b7Highest cost
\n\u00b7Low die life due to high melting temperature
\n\u00b7Requires use of a cold chamber machine<\/td>\n<\/tr>\n | \n| Zinc alloys<\/td>\n | \u00b7High density
\n\u00b7High ductility
\n\u00b7Good impact strength
\n\u00b7Excellent surface smoothness allowing for painting or plating
\n\u00b7Requires such coating due to susceptibility to corrosion
\n\u00b7Easiest to cast
\n\u00b7Can form very thin walls
\n\u00b7Long die life due to low melting point
\n\u00b7Use of a hot chamber machine<\/td>\n<\/tr>\n | \nAdvantages:<\/strong><\/td>\n\u00b7Can produce large parts
\n\u00b7Can form complex shapes
\n\u00b7High strength parts
\n\u00b7Very good surface finish and accuracy
\n\u00b7High production rate
\n\u00b7Low labor cost
\n\u00b7Scrap can be recycled<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n<\/div>\n<\/div><\/div><\/div> <\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":" APC ApS tilbyder, som dansk kinesisk underleverand\u00f8r, Trykst\u00f8bt aluminiums emner. Prototyper kan fremstilles ved CNC bearbejdning. Ordre fra f\u00e5 stk og op. Tilbud \u00d8nskes Vi tilbyder lavvolumen og prototype produktion i Shenzhen. Typisk fra 3 til 10 stk med ca…<\/span><\/p>\nL\u00e6s mere ›<\/a><\/div>\n<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2407,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"full-width-page.php","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-6657","page","type-page","status-publish","hentry"],"yoast_head":"\n Aluminium St\u00f8bning | Aluminium Trykst\u00f8bning | H\u00f8j Kvalitet | Lav Pris<\/title>\n<meta name=\"description\" content=\"Aluminium St\u00f8bning, Aluminium Trykst\u00f8bning fra APC ApS fabrik i Kina. MOQ 1 Stk. Levering 3-4 dage. 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![\"casting-2\"](\"https:\/\/metalbearbejdning.dk\/wp-content\/uploads\/2016\/11\/Casting-2.jpg\" "\\"casting-2\\"")
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\n\t<\/div>\n\n<\/div><\/div><\/div>