{"id":12999,"date":"2018-10-14T07:23:04","date_gmt":"2018-10-14T07:23:04","guid":{"rendered":"https:\/\/aludiecasting.com\/?p=12999"},"modified":"2019-09-20T12:34:05","modified_gmt":"2019-09-20T12:34:05","slug":"aliaje-de-turnare-sub-presiune","status":"publish","type":"post","link":"https:\/\/aludiecasting.com\/ro\/aliaje-de-turnare-sub-presiune\/","title":{"rendered":"Aliaje pentru turnare sub presiune"},"content":{"rendered":"

Aliaje pentru turnare sub presiune<\/h1>\n

Aliaje pentru turnare sub presiune<\/strong><\/em><\/a> sunt \u00een mod normal neferoase \u0219i exist\u0103 un num\u0103r mare de materiale disponibile cu o gam\u0103 larg\u0103 de propriet\u0103\u021bi fizice \u0219i mecanice, care acoper\u0103 aproape toate aplica\u021biile imaginabile pe care le-ar putea solicita un proiectant.<\/span><\/small><\/p>\n

Aliajele de aluminiu \u0219i zinc sunt cele mai utilizate \u0219i sunt urmate de magneziu, aliaje de zinc-aluminiu (AZ), cupru, staniu \u0219i plumb.<\/span><\/small><\/p>\n

Aliajele pe baz\u0103 de zinc, plumb \u0219i staniu sunt clasificate ca metale cu punct de topire sc\u0103zut, toate topindu-se la mai pu\u021bin de 725o<\/sup>F (385o<\/sup>C). Aliajele zinc-aluminiu (ZA) au un interval de topire pu\u021bin mai mare, de 800o<\/sup>F p\u00e2n\u0103 la 900o<\/sup>F (426o<\/sup>C la 482o<\/sup>C). Aliajele de aluminiu \u0219i magneziu sunt considerate a fi aliaje cu punct de topire moderat, fiind turnate \u00een intervalul 1150o<\/sup>F p\u00e2n\u0103 la 1300o<\/sup>F (621o<\/sup>C la 704o<\/sup>C) gam\u0103. Aliajele de cupru sunt considerate a avea un punct de topire ridicat, peste 1650o<\/sup>F (899o<\/sup>C). Aliajele cu punct de topire sc\u0103zut sunt turnate \u00een ma\u0219ini cu camer\u0103 fierbinte. Aliajele cu punct de topire intermediar \u0219i \u00eenalt sunt turnate \u00een ma\u0219ini cu camer\u0103 rece. \u00cen ultimii ani, au intrat \u00een uz ma\u0219ini cu camer\u0103 fierbinte special concepute pentru turnarea sub presiune a aliajelor de magneziu.<\/span><\/small><\/p>\n

<\/a>Compozi\u021bie chimic\u0103 (%) pentru aluminiu \u0219i zinc<\/b><\/span><\/span><\/p>\n

<\/center><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n\n

Aluminiu<\/b><\/span><\/p>\n<\/td>\n

\n

Zinc<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n

Aluminiu<\/span><\/small><\/td>\n\n

R\u0103m\u0103\u0219i\u021be<\/span><\/small><\/p>\n<\/td>\n

\n

3,5 p\u00e2n\u0103 la 4,3<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Cadmiu<\/span><\/small><\/td>\n\n

-<\/span><\/small><\/p>\n<\/td>\n

\n

.004 (max)<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Cupru<\/span><\/small><\/td>\n\n

3.0 p\u00e2n\u0103 la 4.0<\/span><\/small><\/p>\n<\/td>\n

\n

0,25 (max)<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Fier<\/span><\/small><\/td>\n\n

1.3<\/span><\/small><\/p>\n<\/td>\n

\n

0,10 (max)<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Plumb<\/span><\/small><\/td>\n\n

-<\/span><\/small><\/p>\n<\/td>\n

\n

.005 (max)<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Magneziu<\/span><\/small><\/td>\n\n

0.10<\/span><\/small><\/p>\n<\/td>\n

\n

.02 p\u00e2n\u0103 la .05<\/small><\/span><\/p>\n<\/td>\n<\/tr>\n

Mangan<\/span><\/small><\/td>\n\n

0.50<\/span><\/small><\/p>\n<\/td>\n

\n

-<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Nichel<\/span><\/small><\/td>\n\n

0.50<\/span><\/small><\/p>\n<\/td>\n

\n

*<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Siliciu<\/span><\/small><\/td>\n\n

7,5 p\u00e2n\u0103 la 9,5<\/span><\/small><\/p>\n<\/td>\n

\n

*<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Staniu<\/span><\/small><\/td>\n\n

0.35<\/span><\/small><\/p>\n<\/td>\n

\n

.003 (max)<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Zinc<\/span><\/small><\/td>\n\n

3.0<\/span><\/small><\/p>\n<\/td>\n

\n

R\u0103m\u0103\u0219i\u021be<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Altele<\/span><\/small><\/td>\n\n

0.50<\/span><\/small><\/p>\n<\/td>\n

\n

-<\/span><\/small><\/p>\n<\/td>\n<\/tr>\n

Propriet\u0103\u021bile mecanice \u0219i compozi\u021bia chimic\u0103 variaz\u0103 pentru anumite aliaje.\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/center><\/div>\n

\u00a0<\/span><\/p>\n

<\/center><\/div>","protected":false},"excerpt":{"rendered":"

Die Casting Alloys Die casting alloys are normally non-ferrous, and there is a large number available with a wide range of physical and mechanical properties covering almost every conceivable application a designer might require. Aluminum and zinc alloys are the most widely used, and are followed by magnesium, zinc-aluminum (AZ) alloys, copper, tin and lead. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[81],"tags":[82],"class_list":["post-12999","post","type-post","status-publish","format-standard","hentry","category-die-casting-alloys","tag-die-casting-alloys"],"_links":{"self":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/12999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/comments?post=12999"}],"version-history":[{"count":0,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/12999\/revisions"}],"wp:attachment":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/media?parent=12999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/categories?post=12999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/tags?post=12999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}