咨詢熱線:

0531-88771136

您的當前位置: 首頁 > 新聞中心 > 正文

影響濟南模具壓鑄成型的三大問題?

來源:    發布時間:2019-12-09 14:37:50    點擊:

隨著工業的發展,科技的進步!濟南模具發展趨勢也越來越廣泛,但是大家有沒有了解過影響模型成型的因素都有哪些,及常遇到的三大問題都有些?那么今天就跟著濟南市宏捷模具有限公司一起來了解一下吧!
  With the development of industry and technology! Jinan mold development trend is more and more extensive, but do you know what are the factors that affect the model forming, and the three major problems often encountered are some? So today with Jinan Hongjie Mold Co., Ltd. to understand it!
  對壓鑄模具的壽命來說,當壓鑄模具溫度較高時能及時的做好冷卻工作也是比較重要的一點。壓鑄模具的冷卻辦法有水冷、風冷、熱管冷卻和直接冷卻。
濟南模具
  For the life of die-casting die, when the temperature of die-casting die is high, it is also important to do a good job of cooling in time. The cooling methods of die casting die include water cooling, air cooling, heat pipe cooling and direct cooling.
  (1)水冷:在壓鑄模具上設置冷卻水通道,使循環水通入成形鑲塊或型芯內,將熱量帶出模具。水冷冷卻效率高,能有效下降型腔外表的溫度,但增加了壓鑄模具結構的雜亂程度,首要用于要求散熱量大的模具。為了避免型腔外表結露,冷卻水的溫度應高于室溫。
  (1) water cooling: a cooling water channel is arranged on the die-casting mould to make the circulating water enter the forming insert or core and bring the heat out of the mould. The cooling efficiency of water-cooling is high, which can effectively reduce the temperature of cavity surface, but increase the disorder degree of die-casting mold structure, which is mainly used for the mold requiring large heat dissipation. In order to avoid condensation on the surface of the cavity, the temperature of the cooling water should be higher than the room temperature.
  (2)風冷:關于壓鑄型中難于用水冷卻的部位,可采用風冷,風冷可采用鼓風機鼓風或用壓縮空氣。風冷不但能冷卻壓鑄模具,還能將涂料吹勻,遣散涂料的揮發氣體,減少鑄件氣孔。風冷的冷卻溫度遠小于水冷。
  (2) air cooling: for the parts difficult to be cooled by water in the die casting mold, air cooling can be adopted, and blower or compressed air can be used for air cooling. Air cooling can not only cool the die-casting mold, but also blow the coating evenly, release the volatile gas of the coating, and reduce the porosity of the casting. The cooling temperature of air cooling is much lower than that of water cooling.
  (3)熱管冷卻:首要用于難于用冷卻水直接冷卻的細小部位。在需冷卻的細小部位,用熱管特熱量導出,再用冷卻水冷卻熱管。
  (3) heat pipe cooling: it is mainly used for small parts that are difficult to be directly cooled with cooling water. In the small parts to be cooled, the heat pipe is used to export the special heat, and then the cooling water is used to cool the heat pipe.
  (4)直接冷卻:在模溫機壓鑄型的熱節部位能夠用傳熱系數高的合金(銨青銅、鎢基合金等)進行直接冷卻,將銨青銅銷旋入固定型芯,銅銷的結尾帶有散熱片以增強冷卻作用
  (4) direct cooling: Alloy with high heat transfer coefficient (ammonium bronze, tungsten base alloy, etc.) can be used for direct cooling at the hot spot of die-casting mould of mould temperature machine. The ammonium bronze pin is screwed into the fixed core, and the end of the copper pin is provided with heat sink to enhance the cooling effect
  三大問題:
  Three major issues:
  一、熱疲憊龜裂損壞失效
  I. thermal fatigue, cracking, damage and failure
  壓鑄出產時,模具重復受激冷激熱的作用,成型外表與其內部發生變形,彼此牽扯而出現重復循環的熱應力,導致安排結構二損害和喪失耐性,引發微裂紋的出現,并持續擴展,一旦裂紋擴展,還有熔融的金屬液擠入,加上重復的機械應力都使裂紋加快擴展。為此,一方面壓鑄開始時模具有必要充分預熱。別的,在壓鑄出產過程中模具有必要保持在必定的工作溫度規模中,避免出現前期龜裂失效。一同,要保證模具投產前和制作中的內因不發生問題。因實踐出產中,大都的模具失效是熱疲憊龜裂失效。
  During die casting production, the mold is repeatedly stimulated by cold and exciting heat, the forming surface and its interior are deformed, and they are involved in each other, resulting in repeated cycle of thermal stress, resulting in damage and loss of tolerance of the second arrangement structure, causing the appearance and continuous growth of microcracks. Once the cracks expand, there is also molten metal squeeze in, and the repeated mechanical stress makes the cracks expand faster. Therefore, on the one hand, it is necessary to fully preheat the die at the beginning of die casting. In addition, in the process of die-casting production, it is necessary to keep the mold in a certain scale of working temperature to avoid early cracking failure. Together, to ensure that the mold before production and production of internal causes do not occur. In practice, most die failures are thermal fatigue cracking failures.
  二、碎裂失效
  II. Fragmentation failure
  在壓射力的作用下,模具會在更薄弱處萌發裂紋,尤其是模具成型面上的劃線痕跡或電加工痕跡未被打磨光,或是成型的清角處均會更早出現纖細裂紋,當晶界存在脆性相或晶粒粗大時,即簡略開裂。而脆性開裂時裂紋的擴展很快,這對模具的碎裂失效是很危險的要素。為此,一方面凡模具面上的劃痕、電加工痕跡等有必要打磨光,即使它在澆注體系部位,也有必要打光。別的要求所使用的模具材料的強度高、塑性好、沖擊耐性和開裂耐性均好。
  Under the action of the injection force, the mold will sprout cracks at the weakest place, especially the marking marks or machining marks on the molding surface of the mold are not polished, or the fine cracks will appear at the clear corner of the mold at the earliest time. When there are brittle phases or coarse grains on the grain boundary, it is a simple crack. However, the crack propagation is very fast when brittle fracture occurs, which is a very dangerous factor for the fracture failure of the die. For this reason, on the one hand, it is necessary to polish the scratches and machining marks on the mold surface, even if they are in the pouring system. Other requirements of the mold material used for high strength, good plasticity, impact resistance and cracking resistance are good.
  三、溶蝕失效
  III. corrosion failure
  常用的壓鑄合金有鋅合金、鋁合金、鎂合金和銅合金,也有純鋁壓鑄的,Zn、Al、Mg是較生動的金屬元素,它們與模具材料有較好的親和力,特別是Al易咬模。當模具硬度較高時,則抗蝕性較好,而成型外表若有軟點,則敵對蝕性晦氣。
  The commonly used die-casting alloys are zinc alloy, aluminum alloy, magnesium alloy and copper alloy, but also pure aluminum die-casting. Zn, Al, Mg are more vivid metal elements, they have a good affinity with the mold material, especially Al is easy to bite the mold. When the hardness of the mould is high, the corrosion resistance is good, and if there are soft spots on the surface of the mould, the corrosion resistance is bad.
  以上就是由濟南市宏捷模具有限公司對影響模型成型的因素都有哪些,及常遇到的三大問題的額介紹!希望可以幫到你,想要了解更多請點擊官網http://www.hfonsu.icu
  The above is the introduction of Jinan Hongjie Mold Co., Ltd. to the factors that affect the model forming, and the three major problems often encountered! I hope I can help you. To learn more, please click http://www.hfonsu.icu
聯系我們 contact

山東濟南模具_鋁合金壓鑄-濟南宏捷模具有限公司

電話1:13173017488

電話2:18615459955

傳真:0531-88771136

郵箱:[email protected]

地址:山東省濟南市大橋鎮大王村北跨商務中心后三層白樓

山東濟南模具_鋁合金壓鑄-濟南宏捷模具有限公司 手機: 13173017488 咨詢熱線: 0531-88771136 咨詢熱線:18615459955 郵箱:[email protected]

公司地址: 山東省濟南市大橋鎮大王村北跨商務中心后三層白樓 備案號:魯ICP備19048961號-1

版權所有 Copyright ? 2016-2018 山東濟南模具_鋁合金壓鑄-濟南宏捷模具有限公司 網站建設:濟南諾商 流量統計:
網站地圖XMLTXT

开心农场手机版 20选5的计算公式 福州麻将技巧汇总 电玩真人街机捕鱼 湖北30选5中奖规则 金马论坛一肖资料免费 浙江6+1开奖结果查询浙江 玩龙王捕鱼输了几十万怎么办 科乐长春麻将下载安卓版 西甲赛程榜 单机黑龙江麻将破解版