JP6133874B2 - バインダーおよび粉末射出成型による金属製またはセラミック製成型物の製造方法 - Google Patents
バインダーおよび粉末射出成型による金属製またはセラミック製成型物の製造方法 Download PDFInfo
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- JP6133874B2 JP6133874B2 JP2014529116A JP2014529116A JP6133874B2 JP 6133874 B2 JP6133874 B2 JP 6133874B2 JP 2014529116 A JP2014529116 A JP 2014529116A JP 2014529116 A JP2014529116 A JP 2014529116A JP 6133874 B2 JP6133874 B2 JP 6133874B2
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Description
B1)40〜95質量%の少なくとも一種のポリオキシメチレンホモポリマーまたはコポリマーと、
B2)2〜60質量%の少なくとも一種の、ポリ−1,3−ジオキソランとポリ−1,3−ジオキサン、ポリ−1,3−ジオキセパン、ポリテトラヒドロフラン、ポリp−ジオキサノン、これらのコポリマーから選ばれるポリエーテルと、
B3)2〜15質量%の、少なくとも一種の、以下のものから選ばれる脂肪族のポリエステル:
式(I)の構造単位をもつポリヒドロキシアルカノエート:
式(II)の構造単位をもつ重縮合物:と
(−CH2−) m 基(式中、mは2〜4の整数である)];と
一般式(III)の構造単位をもつポリアルキレンカーボネート:
これらの立体異性体やコポリマー
(ただし、成分B1)とB2)とB3)の合計が100質量%である)を含むものを提供する。
これらの混合物とこれらのコポリマーである。
B1)50〜90質量%の少なくとも一種のポリオキシメチレンホモポリマーまたはコポリマーと;
B2)5〜50質量%の、ポリ−1,3−ジオキソランとポリ−1,3−ジオキセパン、ポリテトラヒドロフラン、これらのコポリマーから選ばれる少なくとも一種のポリエーテルと
B3)3〜15質量%の少なくとも一種の、ポリ−(C2−C4)−アルキレンカーボネートとポリ−(C2−C4)−アルキレンサクシネート、ポリラクチド、ポリカプロラクトン、ポリヒドロキシブタノエート、これらの立体異性体とコポリマーから選ばれる脂肪族ポリエステル:
(なお、成分B1)とB2)とB3)の総質量が100質量%である)を含むセラミック製または金属製の成型物の製造用のバインダーBが提供される。
A)40〜65体積%の少なくとも一種の無機の焼結性粉末Aと、
B)35〜60体積%の、以下のものの混合物:
B1)40〜95質量%の少なくとも一種のポリオキシメチレンホモポリマーまたはコポリマーと、
B2)2〜60質量%の、
ポリプロピレンオキシドとポリ−1,3−ジオキソラン、ポリ−1,3−ジオキサン、ポリ−1,3−ジオキセパン、ポリテトラヒドロフラン、ポリp−ジオキサノン、これらのコポリマーから選ばれる少なくとも一種のポリエーテルと
B3)2〜15質量%の、以下のものから選ばれる少なくとも一種の脂肪族のポリエステル:
式(I)の構造単位をもつポリヒドロキシアルカノエート:
式(II)の構造単位をもつ重縮合物
(−CH2−) m 基(式中、mは2〜4の整数である)];と
一般式(III)の構造単位をもつポリアルキレンカーボネート:
これらの立体異性体やコポリマー;
C)0〜5体積%の分散助剤、
なお、成分B1)とB2)とB3)の総質量が100質量%である)を含むものを提供する。
1a)酸触媒により成型物から成分B1とB2をバインダー除去する工程と、
1b)続く200〜600℃で、成分B3と、存在するならCを熱的にバインダーを除去する工程、
または
・以下の工程からなる方法2:
2a)少なくとも50質量%のバインダー成分B2)とB3)と、存在するならバインダー成分C)を成型物から成分B1)が不溶性である溶媒で抽出する工程、
2b)乾燥によりこの成型物から溶媒を除去する工程、
2c)続く、この成型物から酸素系雰囲気下で140〜200℃で熱的に成分B1)を少なとも部分的にバインダー除去する工程、
2d)任意の200〜600℃で、成分B1)とB2)とB3)及び/又はC)の残存するいずれか残存量のバインダーを熱的に除去をする工程、
または
・以下の工程からなる方法3:
3a)成型物からバインダー成分B2)とB3)の、存在するならバインダー成分C)を、成分B1)が不溶性である溶媒により少なくとも部分的に抽出する工程、
3b)乾燥によりこの成型物から溶媒を除く工程、
3c)続く成型物から成分B1)と残存量の成分B2)を少なくとも部分的に酸触媒でバインダー除去する工程、
3d)任意の200〜600℃でいずれか残存量の残留成分B1)とB2)とB3)及び/又はC)を熱的にバインダー除去する工程。
本発明の方法の工程1a)と3c)での酸処理を100〜160℃の範囲の温度で行うことが好ましい。
成型組成物1は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+62質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+29質量%のモル質量が28000のポリジオキソラン(PDL)、
+9質量%のモル質量が120000のポリラクチド(PLA)。
B1 7.26質量%
B2 3.39質量%
B3 1.11質量%
成型組成物2は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+48質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+43質量%のモル質量が28000のポリジオキソラン(PDL)、
+9質量%のモル質量が120000のポリラクチド(PLA)
B1 5.62質量%
B2 5.05質量%
B3 1.08質量%
成型組成物3は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+86質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+3質量%のモル質量が2000のポリテトラヒドロフラン(PTHF)、
+11質量%のモル質量が109000のポリブチレンサクシネート(PBS)
成型組成物3中のバインダー成分B1とB2とB3の質量比率は以下の通りである:
B2 0.36質量%
B3 1.32質量%
成型組成物4は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+67質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+24質量%のモル質量が12500のポリジオキソラン(PDL)
+9質量%のモル質量が109000のポリブチレンサクシネート(PBS)
成型組成物4中のバインダー成分B1とB2とB3の質量比率は以下の通りである:
B1 7.90質量%
B2 2.81質量%
B3 1.13質量%
成型組成物5は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+68質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+24質量%のモル質量が28000のポリジオキソラン(PDL)、
+8質量%のモル質量が23600のポリカプロラクトン(PCL)。
B1 7.91質量%
B2 2.81質量%
B3 0.99質量%
成型組成物6は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+79質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+16質量%のモル質量が33000のポリジオキセパン(PDP)
+5質量%のモル質量が840000mのポリ−3−ヒドロキシブチラート−コ−3−ヒドロキシバレラート(PHBV)
B1 9.08質量%
B2 1.90質量%
B3 0.55質量%
成型組成物7は、以下の組成をしていた:
−56.75体積%の、98質量%のカルボニル鉄粉末と2質量%のカルボニルニッケル粉(FN2)の混合物
−43.25体積%の、以下のものを含むバインダー:
+69質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+29質量%のモル質量が28000のポリジオキソラン(PDL)、
+2.4質量%のモル質量が89000のポリプロピレンカーボネート(PPC)
B1 8.14質量%
B2 3.41質量%
B3 0.29質量%
成型組成物8は、以下の組成をしていた:
−64体積%の、平均粒径が10μmの組成物316L(DIN 1.4404)の金属粉
−36体積%の、以下のものを含むバインダー:
+62質量%の、ポリオキシメチレンと2モル%の1,3−ジオキセパン
+29質量%のモル質量が28000のポリジオキソラン(PDL)、
+9質量%のモル質量が120000のポリラクチド(PLA)
B1 5.31質量%
B2 2.43質量%
B3 0.80質量%
成型組成物9は、以下の組成をしていた:
−47体積%の、平均粒径が0.3μmである、組成がZrO2− 5質量%のY2O3 (TZP)であるセラミック粉
−51体積%の、以下のものを含むバインダー:
+79質量%のポリオキシメチレンと2モル%の1,3−ジオキセパン
+19質量%のモル質量が12500のポリジオキセパン(PDP)
+2質量%のモル質量が109000のポリブチレンサクシネート(PBS)
−2体積%の分散剤C、モル質量が600のエトキシ化脂肪アルコール
B1 13.56質量%
B2 3.30質量%
B3 0.41質量%
C 1.70質量%
試験組成物の一般的な適性試験を位置1の2個のフィルムゲートを使って射出成型により製造した複雑で重い部品を使って実施した (図1:上、立面図、下、部品の上面図)。
これらの試験組成物を、190℃の上記射出成形機のバレル中で溶融させた。この射出金型を135℃に加熱した。一般に、所要射出圧力は約1500〜1800barであり、POM系射出成型組成物に対する通常の値であった。
方法1:触媒的および熱的なバインダー除去
第一の触媒的酸バインダー除去は、実施例1〜9の部品を用いて、110℃の50l試験炉で行った。500l/hの窒素パージで不活性化させた。1時間後、500l/hの窒素でパージされ気化されているこの炉に30ml/hのHNO3を投入した。
焼結曲線は次の通りであった。
−600℃での保持時間:1時間
−600℃から1280℃、5℃/分
−1280℃での保持時間:1時間
−冷却、5℃/分で1000℃へ
−炉から排出、自然冷却
少なくとも7.59g/cm3と好ましい焼結密度をもつ無傷の焼結部品を得ることができた(表2参照)。
−600℃での保持時間:1時間
−600℃から1380℃、5℃/分.
−1380℃での保持時間:1時間
−冷却、5℃/分で1000℃へ
−炉から排出し、自然冷却。
−270℃での保持時間:1時間
−270℃から1500℃、3℃/分.
−1500℃での保持時間:1時間
−冷却、5℃/分で1000℃へ
−炉から排出し、自然冷却。
これらの試験組成物から製造された緑色部品を溶媒中で前処理し、次いでこの成型物を乾燥し、残留バインダーを熱的に除き、成型物を焼結した。
[℃] [℃] [℃/h] [h]
0 RT 130 300 1
1 130 140 10 6
2 140 150 10 16
3 150 160 10 1
4 160 170 10 1
5 170 170 − 5
実施例1〜9の成型組成物を、方法2と同じ溶媒を用いて溶媒バインダー除去を行った。
Claims (7)
- セラミック製または金属製の成型物製造用のバインダーBであって、
B1)40〜95質量%の少なくとも一種のポリオキシメチレンホモポリマーまたはコポリマーと、
B2)2〜60質量%の、ポリ−1,3−ジオキソラン、ポリ−1,3−ジオキサン、ポリ−1,3−ジオキセパン、ポリテトラヒドロフラン、ポリ−p−ジオキサノン及びこれらのコポリマーから選ばれる少なくとも一種のポリエーテルと、
B3)2〜15質量%の、
式(I)の構造単位をもつポリヒドロキシアルカノエート
式(II)の構造単位をもつ重縮合物
(−CH2−) m 基(式中、mは2〜4の整数である)]と、
一般式(III)の構造単位をもつポリアルキレンカーボネート
これらの立体異性体やコポリマーと、
から選択される少なくとも一種の脂肪族ポリエステルと、
を含み、成分B1)とB2)とB3)の合計が100質量%であるバインダーB。 - B1)50〜90質量%の少なくとも一種のポリオキシメチレンホモポリマーまたはコポリマーと、
B2)5〜50質量%の、ポリ−1,3−ジオキソラン、ポリ−1,3−ジオキセパン、ポリテトラヒドロフラン、及びこれらのコポリマーから選ばれる少なくとも一種のポリエーテルと、
B3)3〜12質量%の、ポリ−(C2−C4)−アルキレンカーボネート、ポリ−(C2−C4)−アルキレンサクシネート、ポリラクチド、ポリカプロラクトン、ポリヒドロキシブタノエート及びこれらの立体異性体とコポリマーから選ばれる少なくとも一種の脂肪族ポリエステルと、
を含み、成分B1)とB2)とB3)の合計が100質量%である請求項1に記載のバインダーB。 - 金属製またはセラミック製成型物の製造用熱可塑性組成物であって、
A)40〜65体積%の少なくとも一種の無機の焼結性粉末Aと
B)35〜60体積%の、
B1)40〜95質量%の、少なくとも一種のポリオキシメチレンホモポリマーまたはコポリマーと、
B2)2〜60質量%の、ポリ−1,3−ジオキソラン、ポリ−1,3−ジオキサン、ポリ−1,3−ジオキセパン、ポリテトラヒドロフラン、ポリ−p−ジオキサノン及びこれらのコポリマーから選ばれる少なくとも一種のポリエーテルと、
B3)2〜15質量%の、
式(I)の構造単位をもつポリヒドロキシアルカノエート
式(II)の構造単位をもつ重縮合物
(−CH2−) m 基(式中、mは2〜4の整数である)]と、
一般式(III)の構造単位をもつポリアルキレンカーボネート
これらの立体異性体及びコポリマーと、
の混合物と、
C)0〜体積5%の分散助剤と、
を含み、成分B1)とB2)とB3)の合計が100質量%である熱可塑性組成物。 - 上記無機焼結性粉末Aが、金属粉と金属合金粉、金属カルボニル粉末、セラミック粉、これらの混合物から選ばれる請求項3に記載の熱可塑性組成物。
- 金属製またはセラミック製の成型物製造用の請求項3又は4に記載の熱可塑性組成物の製造方法。
- 射出成型、押出成型または圧縮により成型物を与え、次いで該バインダーを除去して焼結する請求項3または4に記載の熱可塑性組成物から金属製またはセラミック製成型物を製造する方法であって、
該バインダーを、以下の方法、
1a)酸触媒により成型物から成分B1とB2をバインダー除去する工程と、
1b)次に、200〜600℃で、成分B3と、存在するならCを熱的にバインダー除去する工程と、
を有する方法1と、
2a)B 2 )とB 3 )と、存在するならバインダー成分C)の合計に基づいて、少なくとも50質量%のバインダー成分B2)とB3)と、存在するならバインダー成分C)を成型物から成分B1)が不溶性である溶媒で抽出する工程と、
2b)乾燥によりこの成型物から溶媒を除去する工程と、
2c)続く、この成型物から酸素系雰囲気下で140〜200℃で熱的に成分B1)を少なとも部分的にバインダー除去する工程と、
を有する方法2と、
3a)成型物からバインダー成分B2)とB3)の、存在するならバインダー成分C)を、成分B1)が不溶性である溶媒により少なくとも部分的に抽出する工程と、
3b)乾燥によりこの成型物から溶媒を除く工程と、
3c)続く成型物から成分B1)と残存量の成分B2)を少なくとも部分的に酸触媒でバインダー除去する工程と、
を有する方法3と、
のうちの一つの方法によって成型物を処理することで除去することを特徴とする方法。 - 前記方法2が
2d)200〜600℃で、残存量の成分B 1 )とB 2 )とB 3 )及び/又はC)を熱的バインダー除去する工程、
をさらに有し、
前記方法3が
3d)200〜600℃で、残存量の残留成分B 1 )とB 2 )とB 3 )及び/又はC)を熱的バインダー除去する工程、
をさらに有する、
ことを特徴とする請求項6に記載の方法。
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CN1708372A (zh) * | 2002-10-29 | 2005-12-14 | 巴斯福股份公司 | 金属注模材料以及金属注模法 |
SE0401041D0 (sv) * | 2004-04-21 | 2004-04-21 | Hoeganaes Ab | Sintered metal parts and method for the manufacturing thereof |
RU2446031C2 (ru) * | 2006-07-13 | 2012-03-27 | Басф Се | Содержащие связующее термопластичные массы для изготовления металлических формованных изделий |
KR20080027171A (ko) | 2006-09-22 | 2008-03-26 | 세이코 엡슨 가부시키가이샤 | 소결체의 제조방법 및 소결체 |
JP4483880B2 (ja) | 2007-03-15 | 2010-06-16 | セイコーエプソン株式会社 | 成形体形成用組成物、脱脂体および焼結体 |
JP4595954B2 (ja) | 2007-03-15 | 2010-12-08 | セイコーエプソン株式会社 | 焼結体の製造方法 |
NL2003325C2 (en) | 2009-08-03 | 2011-02-04 | Syroko B V | Method for producing a powder injection moulded part. |
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2012
- 2012-09-06 CN CN201280054202.3A patent/CN103917315B/zh active Active
- 2012-09-06 DK DK12829611.8T patent/DK2753443T3/en active
- 2012-09-06 WO PCT/IB2012/054603 patent/WO2013035059A1/de active Application Filing
- 2012-09-06 ES ES12829611.8T patent/ES2659560T3/es active Active
- 2012-09-06 PL PL12829611T patent/PL2753443T3/pl unknown
- 2012-09-06 EP EP12829611.8A patent/EP2753443B1/de active Active
- 2012-09-06 KR KR1020147008946A patent/KR101929081B1/ko active IP Right Grant
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Publication number | Publication date |
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JP2014529575A (ja) | 2014-11-13 |
KR101929081B1 (ko) | 2018-12-13 |
EP2753443B1 (de) | 2017-11-15 |
PL2753443T3 (pl) | 2018-04-30 |
ES2659560T3 (es) | 2018-03-16 |
KR20140059841A (ko) | 2014-05-16 |
EP2753443A4 (de) | 2015-09-09 |
CN103917315B (zh) | 2016-08-24 |
CN103917315A (zh) | 2014-07-09 |
EP2753443A1 (de) | 2014-07-16 |
WO2013035059A1 (de) | 2013-03-14 |
HUE036520T2 (hu) | 2018-07-30 |
DK2753443T3 (en) | 2018-02-19 |
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