JP2021185265A - 無鉛または低鉛含有量の真鍮ビレットの製造方法およびこれにより得られるビレット - Google Patents
無鉛または低鉛含有量の真鍮ビレットの製造方法およびこれにより得られるビレット Download PDFInfo
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- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 44
- 239000010951 brass Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 13
- 239000012634 fragment Substances 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000011874 heated mixture Substances 0.000 claims 5
- 239000000843 powder Substances 0.000 description 11
- 239000011812 mixed powder Substances 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009690 centrifugal atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007782 splat cooling Methods 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 238000012345 traction test Methods 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
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Abstract
Description
しかしながら、ある加工物、たとえば蛇口または水、特に飲料水と接する他の部品を無鉛合金で作製する必要性が、近年生じている。主に、このような要求は、健康に良くないと考えられる結果、鉛が水に溶解することを防ぐ必要性から生じる。
真鍮粉末およびグラファイト粉末は、たとえばミキサ/バッチャにおいて、所定の時間間隔の間、混合される。
容器は、押出成形機の中へ入れられ、予熱の後または加熱の間に、直接または反転のいずれかの押出成形が行われ、これにより、たとえば表面上に容器の材料を含む、複合ビレットを得る。
たとえば、実験的試験において、
−約70ミリメートルの直径の、第1の缶C1が、混合された無鉛真鍮およびグラファイト粉末を含んで準備され、120トンまで予め圧縮された。
−約70ミリメートルの直径の、第2の缶C2が、混合された無鉛真鍮およびグラファイト粉末を含み、圧縮されなかった。
ートルのビレットの最終直径で、直接押出成形を受けた。
両方のバーについて、最終密度は約8グラム/cm3であり、硬度HV5Kgは約85
であった。
本発明によれば、ビレットは、無鉛または低鉛含有量の真鍮チップおよびグラファイト粉末の混合物の、直接または反転のいずれかの押出成形によって得られる。
用語「チップ」は、一般にもつれた、材料の概ね薄い条片を示す。たとえば、チップは、国際標準ISO3685の表G.1に示される形態を有する(図3)。
Claims (13)
- 無鉛または低鉛含有量の真鍮からなる半仕上げされた製品上のチップ除去による機械加工を行って所定の量のチップを得るステップと、
所定の平均粒径を有する所定の量のグラファイト粉末を準備するステップと、
前記量のチップにおいて所定の粒径より小さい粒径を有する真鍮フラグメントを分離するステップと、
真鍮フラグメントをグラファイト粉末と混合して真鍮−グラファイト混合物を得るステップと、
真鍮−グラファイト混合物を加熱して加熱された混合物を得るステップと、
前記加熱された混合物に押出成形を施して前記無鉛または低鉛含有量の真鍮ビレットを得るステップと、を備える、無鉛または低鉛含有量の真鍮ビレットを得る方法。 - 前記所定の量のチップはたとえばミルで破砕され、所定の粒径、たとえば0.5ミリメートルよりも小さい粒径を有する真鍮フラグメントが分離される、請求項1に記載の方法。
- 前記混合物は、重量で0.5%〜1%の間のグラファイト粉末を含む、請求項1または請求項2に記載の方法。
- 前記混合物は、600〜780℃の間の温度まで加熱される、請求項2または請求項3に記載の方法。
- 前記押出成形の間に焼結プロセスが起こる、先行する請求項のいずれか1項に記載の方法。
- 前記押出成形は直接法である、先行する請求項のいずれか1項に記載の方法。
- 前記押出成形は反転法である、請求項1から請求項5のいずれか1項に記載の方法。
- 前記チップは、膨張したまたはもつれた、材料の薄い条片である、先行する請求項のいずれか1項に記載の方法。
- 前記チップ除去による機械加工のステップは、遠隔の工場で行われ、
前記所定の量のチップは、主要工場に運搬され、
前記真鍮フラグメントを分離するステップおよび前記加熱された混合物に押出成形を施すステップは、前記主要工場で行われる、先行する請求項のいずれか1項に記載の方法。 - 請求項1から請求項9のいずれか1項に記載の無鉛または低鉛含有量の真鍮ビレット。
- 無鉛または低鉛含有量の真鍮からなる半仕上げされた製品上で行われるチップ除去による機械加工によって得られる所定の量のチップを提供するステップと、
所定の平均粒径を有する所定の量のグラファイト粉末を提供するステップと、
前記量のチップにおいて所定の粒径より小さい粒径を有する真鍮フラグメントを分離するステップと、
真鍮フラグメントをグラファイト粉末と混合して真鍮−グラファイト混合物を得るステップと、
真鍮−グラファイト混合物を加熱して加熱された混合物を得るステップと、
前記加熱された混合物に押出成形を施して前記無鉛または低鉛含有量の真鍮ビレットを得るステップと、を備える、無鉛または低鉛含有量の真鍮ビレットを得る方法。 - 請求項11に記載の、および請求項2から請求項8のいずれか1項に記載の方法。
- 請求項11または請求項12のいずれか1項に記載の無鉛または低鉛含有量の真鍮ビレット。
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IT102016000051168 | 2016-05-18 | ||
ITUA2016A003561A ITUA20163561A1 (it) | 2016-05-18 | 2016-05-18 | Metodo per la realizzazione di una billetta di ottone senza piombo o a basso contenuto di piombo e billetta così ottenuta |
JP2019513495A JP2019516868A (ja) | 2016-05-18 | 2017-05-12 | 無鉛または低鉛含有量の真鍮ビレットの製造方法およびこれにより得られるビレット |
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US11440094B2 (en) | 2018-03-13 | 2022-09-13 | Mueller Industries, Inc. | Powder metallurgy process for making lead free brass alloys |
US11459639B2 (en) | 2018-03-13 | 2022-10-04 | Mueller Industries, Inc. | Powder metallurgy process for making lead free brass alloys |
IT201800008041A1 (it) | 2018-08-10 | 2020-02-10 | Almag Spa Azienda Lavorazioni Metallurgiche Ed Affini Gnutti | Processo per l’ottenimento di una billetta di ottone a ridotto tenore di piombo e billetta così ottenuta |
WO2021150319A1 (en) * | 2020-01-23 | 2021-07-29 | Mueller Industries, Inc. | Powder metallurgy process for making lead free brass alloys |
IT202000004480A1 (it) | 2020-03-03 | 2021-09-03 | A L M A G S P A Azienda Lavorazioni Metallurgiche E Affini Gnutti | Processo per l’ottenimento di una billetta di ottone a ridotto tenore di piombo e billetta così ottenuta |
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RU2018144658A3 (ja) | 2020-06-18 |
JP2019516868A (ja) | 2019-06-20 |
AU2023202208A1 (en) | 2023-05-04 |
AU2017265469A1 (en) | 2018-12-13 |
EP3458212A1 (en) | 2019-03-27 |
TW201812033A (zh) | 2018-04-01 |
RU2018144658A (ru) | 2020-06-18 |
US11679436B2 (en) | 2023-06-20 |
KR20190009785A (ko) | 2019-01-29 |
US20190299295A1 (en) | 2019-10-03 |
SG10202011507QA (en) | 2020-12-30 |
KR102399101B1 (ko) | 2022-05-17 |
MA45034A (fr) | 2019-03-27 |
US20220331861A1 (en) | 2022-10-20 |
KR20210137589A (ko) | 2021-11-17 |
WO2017199147A1 (en) | 2017-11-23 |
UA124102C2 (uk) | 2021-07-21 |
CN109153080A (zh) | 2019-01-04 |
AU2017265469B2 (en) | 2023-02-16 |
SG11201810075QA (en) | 2018-12-28 |
US11351607B2 (en) | 2022-06-07 |
TN2018000378A1 (en) | 2020-06-15 |
RU2733620C2 (ru) | 2020-10-05 |
CA3024066A1 (en) | 2017-11-23 |
RU2020131061A (ru) | 2020-10-29 |
ZA201807953B (en) | 2023-07-26 |
ITUA20163561A1 (it) | 2017-11-18 |
TWI722190B (zh) | 2021-03-21 |
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