TWI601587B - 內置孔道結構的零件之製備方法 - Google Patents
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Description
本發明屬於工業領域,尤其是涉及一種內置孔道結構的零件之製備方法,用以成型複雜孔道結構的產品。
在機械行業的通水、通油、通氣領域中,孔道結構的零件具有廣泛應用,如懸浮軸承系統中送氣送油和冷卻孔道,機械模具中鑲件、澆口套、滑塊之冷卻水道,及各種機械行業中需要定向定點的內置孔道結構應用。在通常設計內置孔道的方法一般採用拼接後密封圈密封固定,或採用拼接後焊接固定等方法。這些設計生產工藝複雜,一般只能解決2D結構的孔道形貌,使用可靠性、安全性差,維護成本高。內置複雜孔道的金屬零件的成型,有著廣泛的應用和市場前景。因此內置複雜孔道的金屬零件成型方法是目前行業所需的。
本發明所要解決的技術問題是:使用可靠、安全性好,維護成本低的內置孔道結構的零件之製備方法。
本發明所採取的技術方案是:一種內置孔道結構的零件之製備方法,包括如下步驟,
(1) 成型所需孔道形狀相同的孔道結構件;
(2) 於上述孔道結構件表面塗覆保護膜;
(3) 將孔道結構件定位在成型所需零件結構的模腔中,用成型零件的粉末填充成型,孔道結構件的熔點低於成型零件用粉末的熔點;
(4) 熔去孔道結構件;
(5) 進行燒結成型,即成內置孔道結構的零件。
在步驟(1)中,該成型孔道結構形狀用的孔道結構件為熔點是0~500°C的金屬材料或石蠟或樹脂。
在步驟(1)中,該孔道結構件的成型方法為焊接、澆注、注射、3D成型中的一種或者任意組合。
在步驟(2)中,該孔道結構件表面塗覆用的保護膜的材料為PVP、PVA、滑石粉中的一種或者任意組合。
在步驟(3)中,該孔道結構件的定位方法中利用與成型零件用的相同材料來做為支撐結構。
高溫金屬粉末的填充方法為機械壓製成型、注射成型或、漿料灌注成型、冷等靜壓成型、或熱等靜壓成型。
在步驟(3)中,該成型零件的粉末為熔點在600°C以上的金屬粉末或者陶瓷成型原料。
在步驟(4)中,該熔去結構件的方法為常壓下加溫熔化去除之方法、或在真空下加溫熔化去除之方法。
在步驟(4)中,該熔去孔道結構件的方法為脫脂法去除之方法。
在步驟(5)中,該燒結成型的方法為在真空中燒結之方法。
燒結成型的方法為在具有還原性氣體的環境中真空燒結之方法。
本發明的有益效果是:一種內置孔道結構的零件之製備方法,一體成型的內置孔道的零件(金屬),能成型3D結構的複雜形狀。由於是一體成型,除去了維護成本,可靠性、安全性及零件的力學強度等很高,特別是以難熔金屬材料做為基體的零件,有明顯的優勢。也適合陶瓷等非金屬材料內置複雜孔道的成型。
一種內置孔道結構的零件之製備方法,其特徵在於,包括如下步驟,
(1) 成型所需孔道形狀相同的孔道結構件;
(2) 將上述孔道結構件表面塗覆保護膜;
(3) 把孔道結構件定位在成型所需零件結構的模腔中,用成型零件的粉末填充成型,孔道結構件的熔點低於成型零件用粉末的熔點;
(4) 熔去孔道結構件;
(5) 進行燒結成型,即成內置孔道結構的零件。
在步驟(1)中,的成型孔道結構形狀用的孔道結構件為熔點是0~500°C的金屬材料或石蠟或樹脂。本實施例中採用金屬材料。
在步驟(1) 中,孔道結構件的成型方法為焊接、澆注、注射、3D成型中的一種或者任意組合。
在步驟(2) 中,孔道結構件表面塗覆用的保護膜的材料為PVP、PVA、滑石粉中的一種或者任意組合,其目的在於孔道結構件便於脫出和孔道的光滑,並防止兩種材料在高溫燒結時產生不良反應和增強孔道結構件表面硬度。
在步驟(3)中,孔道結構件的定位方法中利用與成型零件用的相同材料來做為支撐結構。
在步驟(3)中,高溫金屬粉末的填充方法為機械壓製成型或注射成型或漿料灌注成型或冷等靜壓成型或熱等靜壓成型。
在步驟(3)中,成型零件的粉末為熔點在600°C以上的金屬粉末或者陶瓷成型原料。
在步驟(4)中,熔去孔道結構件的方法為常壓下加溫熔化去除之方法。
在步驟(4)中,熔去孔道結構件的方法為在真空下加溫熔化去除之方法。
在步驟(4)中,熔去孔道結構件的方法為脫脂法去除之方法。
在步驟(5)中,燒結成型的方法為在真空中燒結之方法。
在步驟(5)中,燒結成型的方法為在具有還原性氣體的環境中真空燒結之方法。
本發明一種內置孔道結構的零件之製備方法,使用兩種不同熔點的材料壓製而成,低熔點的材料為有任意形狀結構的成型件,高熔點材料為粉末狀,把低熔點的材料包裹定位在高熔點材料的粉末中製備。當製備完成以後,熔化去除其中的低溫材料,燒結後成為有隨意形狀結構的孔道。在金屬零件需要通水、通氣、通油場合中應用,本發明代替了各種以機械拼接方法獲取的孔道結構,或成本高昂的3D列印技術成型的孔道結構,應用廣泛,成本低廉,工藝簡單可控,適合批量化生產,具有非常廣闊的市場前景。
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Claims (9)
- 一種內置孔道結構的零件之製備方法,其特徵在於包括如下之步驟:(1)成型與所需孔道之形狀相同的孔道結構件;(2)於該孔道結構件之表面塗覆保護膜;(3)利用與成型該零件結構用的相同材料做為支撐結構將該孔道結構件定位在用以成型所需之零件結構的模腔中,填充成型該零件結構所需的粉末,該孔道結構件的熔點低於成型該零件結構所需的粉末的熔點;(4)熔去該孔道結構件;(5)進行燒結成型,即成內置孔道結構的零件。
- 如請求項1之內置孔道結構的零件之製備方法,其中在步驟(1)中,用於成型與所需孔道結構之相同形狀的該孔道結構件為熔點是0~500℃的金屬材料或石蠟或樹脂;在步驟(1)中之該孔道結構件的成型方法為焊接、澆注、注射、3D成型中的一種或彼等之任意組合。
- 如請求項1之內置孔道結構的零件之製備方法,其中在步驟(2)中,用於塗覆該孔道結構件之表面的保護膜的材料為PVP、PVA、滑石粉中的一種或彼等之任意組合。
- 如請求項1之內置孔道結構的零件之製備方法,其中高溫金屬粉末的填充方法為機械壓製成型、注射成型、漿料灌注成型、冷等靜壓成型、或熱等靜壓成型。
- 如請求項1之內置孔道結構的零件之製備方法,其中在步驟(3)中,成型該零件結構所需的粉末為熔點在600℃以上的金屬粉末、或陶瓷成型原料。
- 如請求項1之內置孔道結構的零件之製備方法,其中在步驟(4)中,熔去該孔道結構件的方法為常壓下加溫熔化去除之方法、或在真空下加溫熔化去除之方法。
- 如請求項1之內置孔道結構的零件之製備方法,其中在步驟(4)中,熔去該孔道結構件的方法為脫脂法去除之方法。
- 如請求項1之內置孔道結構的零件之製備方法,其中在步驟(5)中,該燒結成型的方法為在真空中燒結之方法。
- 如請求項8之內置孔道結構的零件之製備方法,其中在步驟(5)中,該燒結成型的方法為在具有還原性氣體的環境中真空燒結之方法。
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EP3542926B1 (en) | 2016-04-11 | 2021-04-07 | Stratasys Ltd. | Method and apparatus for additive manufacturing with powder material |
IL269485B2 (en) | 2017-03-20 | 2024-03-01 | Stratasys Ltd | System and method for producing supplements with powdered material |
CN109014193B (zh) * | 2018-07-12 | 2020-06-19 | 首钢集团有限公司 | 一种具备随形冷却的热作模具成型方法 |
CN109228052B (zh) * | 2018-08-17 | 2021-03-02 | 广州一道注塑机械股份有限公司 | 一种散热部件中冷却管道的制造方法 |
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CN109822718A (zh) * | 2019-01-04 | 2019-05-31 | 国装新材料技术(江苏)有限公司 | 闭孔精密构件制造方法 |
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CN110421160A (zh) * | 2019-09-02 | 2019-11-08 | 北京航空航天大学 | 一种内通道件快速成形方法 |
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US20120087823A1 (en) | 2009-06-02 | 2012-04-12 | Basf Se | Method for producing porous metal sintered molded bodies |
CN101670437B (zh) * | 2009-07-20 | 2011-04-13 | 黑龙江科技学院 | 一种带有随形冷却管道的模具制造方法 |
CN101670627A (zh) * | 2009-07-20 | 2010-03-17 | 黑龙江科技学院 | 一种带随形冷却管道的模具结构 |
TW201103667A (en) | 2009-07-28 | 2011-02-01 | Univ Far East | Method of controlling interior space of porous sintered products |
CN106119586B (zh) | 2013-04-12 | 2018-08-31 | 重庆润泽医药有限公司 | 一种多孔金属材料的制备方法 |
CN103409714B (zh) * | 2013-07-16 | 2015-09-23 | 香港生产力促进局 | 一种内藏随形冷却水路的模具的制作方法 |
CN104001914B (zh) * | 2014-05-16 | 2016-01-06 | 华南理工大学 | 一种带有随形冷却管道的注塑模具制造方法 |
CN104741884B (zh) * | 2015-01-30 | 2017-03-08 | 东莞劲胜精密组件股份有限公司 | 一种内部具有随形水路的模具及其制作方法 |
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2016
- 2016-05-11 CN CN201610326005.2A patent/CN106077651A/zh active Pending
- 2016-08-10 US US15/232,838 patent/US10207324B2/en not_active Expired - Fee Related
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- 2016-08-16 DE DE102016115172.6A patent/DE102016115172A1/de not_active Ceased
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CN106077651A (zh) | 2016-11-09 |
US20170326644A1 (en) | 2017-11-16 |
DE102016115172A1 (de) | 2017-11-16 |
TW201739547A (zh) | 2017-11-16 |
JP6268380B2 (ja) | 2018-01-31 |
US10207324B2 (en) | 2019-02-19 |
JP2017203211A (ja) | 2017-11-16 |
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