足球比分

鋁合金壓鑄工藝

鑄造工藝

產品分類

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足球比分GONGSIDIZHI:WENLINGSHISONGMENZHENNANXIANTIANCUNGONGYEQU

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鑄造工藝

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   鋁合金鑄造工藝性能,通常理解為在充滿鑄型、結晶和冷卻過程中表現最為突出的那些性能的綜合。流動性、收縮性、熱烈性、氣密性、鑄造應力、吸氣性。鋁合金這些特性取決于合金的成分,但也與鑄造因素、合金加熱溫度、鑄型的復雜程度、澆冒口系統、澆口形狀等有關。 

(1) 流動性

足球比分LIUDONGXINGSHIZHIHEJINYETICHONGTIANZHUXINGDENENGLI。LIUDONGXINGDEDAXIAOJUEDINGHEJINNENGFOUZHUZAOFUZADEZHUJIAN。ZAILVHEJINZHONGGONGJINGHEJINDELIUDONGXINGZUIHAO。

足球比分YINGXIANGLIUDONGXINGDEYINSUHENDUO,ZHUYAOSHICHENGFEN、WENDUYIJIHEJINYETIZHONGCUNZAIJINSHUYANGHUAWU、JINSHUHUAHEWUJIQITAWURANWUDEGUXIANGKELI,DANWAIZAIDEGENBENYINSUWEIJIAOZHUWENDUJIJIAOZHUYALI(SUCHENGJIAOZHUYATOU)DEGAODI。

(2) SHOUSUOXING

SHOUSUOXINGSHIZHUZAOLVHEJINDEZHUYAOTEZHENGZHIYI。YIBANJIANG,HEJINCONGYETIJIAOZHUDAONINGGU,ZHIZHILENGDAOSHIWEN,GONGFENWEISANGEJIEDUAN,FENBIEWEIYETAISHOUSUO、NINGGUSHOUSUOHEGUTAISHOUSUO。HEJINDESHOUSUOXINGDUIZHUJIANZHILIANGYOUJUEDINGXINGDEYINGXIANG,TAYINGXIANGZHUZHUJIANDESUOKONGDAXIAO、YINGLIDECHANSHENG、LIEWENDEXINGCHENGJICHICUNDEBIANHUA。TONGCHANGZHUJIANSHOUSUOYOUFENWEITISHOUSUOHEXIANSHOUSUO,ZAIJINCHENGDESHIJISHENGCHANZHONGYIBANYONGXIANSHOUSUOLAIHENGLIANGHEJINDESHOUSUOXING。LVHEJINSHOUSUODAXIAO,TONGCHANGYIBAIFENSHULAIBIAOSHI,CHENGWEISHOUSUOLV。

足球比分(3) RELIEXING

LVZHUJIANRELIEWENDECHANSHENG,ZHUYAOSHIYOUYUZHUJIANSHOUSUOYINGLICHAOGUOLEJINSHUJINGLIJIANDEJIEHELIERCHANSHENGDE,BUTONGLVHEJINZHUJIANCHANSHENGLIEWENDEQINGXIANGYEBUTONG,ZHESHIYINWEIZHULVHEJINNINGGUGUOCHENGZHONGKAISHIXINGCHENGWANZHENGDEJIEJINGKUANGJIADEWENDUYUNINGGUWENDUZHICHAYUEDA,HEJINSHOUSUOLVJIUYUEDA,CHANSHENGRELIEWENQINGXIANGYEYUEDA,JISHITONGYIZHONGHEJINYEYINZHUXINGDEZULI、ZHUJIANDEJIEGOU、JIAOZHUGONGYIDENGYINSUCHANSHENGRELIEWENQINGXIANGYEBUTONG。

在金澄精密的生產中我們都通常采用退讓性鑄型,或改進鑄鋁合金的澆注系統等措施,使鋁鑄件避免產生裂紋。通常采用熱裂環法檢測鋁鑄件熱裂紋。 

(4) 氣密性

足球比分ZHULVHEJINQIMIXINGSHIZHIQIANGTIXINGLVZHUJIANZAIGAOYAQITIHUOYETIDEZUOYONGXIABUSHENLOUCHENGDU,QIMIXINGSHIJISHANGBIAOZHENGLEZHUJIANNEIBUZUZHIZHIMIYUCHUNJINGDECHENGDU。

足球比分JUWOZAIJINCHENGJINGMIGONGZUOZHONGFAXIAN,ZHULVHEJINDEQIMIXINGYUHEJINDEXINGZHISHIYOUGUANXIDE,HEJINNINGGUFANWEIYUEXIAO,CHANSHENGSHUSONGQINGXIANGYEYUEXIAO,TONGSHICHANSHENGXICHUXINGQIKONGYUEXIAO,ZEHEJINDEQIMIXINGJIUYUEGAO。TONGYIZHONGZHULVHEJINDEQIMIXINGHAOHUAI,HUANYUZHUZAOGONGYIYOUGUAN,RUJIANGDIZHULVHEJINJIAOZHUWENDU、FANGZHILENGTIEYIJIAKUAILENGQUESUDUYIJIZAIYALIXIANINGGUJIEJINGDENG,JUNKESHILVZHUJIANDEQIMIXINGTIGAO。WOZAIJINCHENGJINGMIDESHIHOUYEHUISHIYONGJINSHENFADUSAIXIELUKONGXILAITIGAOZHUJIANDEQIMIXING。

(5) 鑄造應力

足球比分ZHULVHEJINJIANZHONGDECANLIUYINGLIJIANGDILEHEJINDELIXUEXINGNENG,YINGXIANGZHUJIANDEJIAGONGJINGDU。LVZHUJIANZHONGDECANLIUYINGLIKETONGGUOTUIHUOCHULIXIAOCHU。HEJINYINDAOREXINGHAO,LENGQUEGUOCHENGZHONGWUXIANGBIAN,ZHIYAOZHUJIANJIEGOUSHEJIHELI,LVZHUJIANDECANLIUYINGLIYIBANJIAOXIAO。

(6) 吸氣性

鋁合金易吸收氣體,是鑄造鋁合金的主要特性。液態鋁及鋁合金的組分與爐料、有機物燃燒產物及鑄型等所含水分發生反應而產生的氫氣被鋁液體吸收所致。 

鋁合金熔液溫度越高,吸收的氫也越多;在700℃時,每100g鋁中氫的溶解度為0.5~0.9,溫度升高到850℃時,氫的溶解度增加2~3倍。當含堿金屬雜質時,氫在鋁液中的溶解度顯著增加。 

鑄鋁合金除熔煉時吸氣外,在澆入鑄型時也會產生吸氣,進入鑄型內的液態金屬隨溫度下降,氣體的溶解度下降,析出多余的氣體,有一部分逸不出的氣體留在鑄件內形成氣孔,這就是通常稱的“針孔”。氣體有時會與縮孔結合在一起,鋁液中析出的氣體留在縮孔內。若氣泡受熱產生的壓力很大,則氣孔表面光滑,孔的周圍有一圈光亮層;若氣泡產生的壓力小,則孔內表面多皺紋,看上去如“蒼蠅腳”,仔細觀察又具有縮孔的特征。 

ZHULVHEJINYEZHONGHANQINGLIANGYUEGAO,ZHUJIANZHONGCHANSHENGDEZHENKONGYEYUEDUO。LVZHUJIANZHONGZHENKONGBUJINJIANGDILEZHUJIANDEQIMIXING、NAISHIXING,HUANJIANGDILEHEJINDELIXUEXINGNENG。YAOHUODEWUQIKONGHUOSHAOQIKONGDELVZHUJIAN,GUANJIANZAIYURONGLIANTIAOJIAN。JINCHENGJINGMIZAIRONGLIANSHIHUITIANJIAFUGAIJIBAOHU,ZHEYANGHEJINDEXIQILIANGJIUHUIDAWEIJIANSHAO。DUILVRONGYEZUOJINGLIANCHULI,KEYOUXIAOKONGZHILVYEZHONGDEHANQINGLIANG。


image.png  溫嶺市松門鎮南咸田村工業區

image.png  0576-8611 4991

image.png  13705861120

image.png  [email protected]

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