JP6275324B2 - 鋳造部品を鋳造する方法 - Google Patents
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- 238000011049 filling Methods 0.000 claims description 175
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- 239000007789 gas Substances 0.000 claims description 91
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- 238000000034 method Methods 0.000 claims description 66
- 239000004576 sand Substances 0.000 claims description 41
- 238000002485 combustion reaction Methods 0.000 claims description 39
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 47
- 229910001018 Cast iron Inorganic materials 0.000 description 19
- 239000002245 particle Substances 0.000 description 14
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000009996 mechanical pre-treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
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- 230000009257 reactivity Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- -1 silica sand Chemical compound 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/003—Removing cores using heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
- B22D45/005—Evacuation of fumes, dust or waste gases during manipulations in the foundry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
- B22C5/085—Cooling or drying the sand together with the castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Casting Devices For Molds (AREA)
Description
− 鋳造鋳型を準備するステップと、
− エンクロージャ(囲い込み)内に鋳造鋳型を収容し、エンクロージャの少なくとも1つの内側表面区域と鋳造鋳型の関連する外側表面区域との間に充填スペースを形成するステップと、
− 充填スペースを自由流動充填材料で充填するステップと、
− 溶融金属を鋳造鋳型内に鋳込むステップと、
を含み、
− ここで、溶融金属の鋳込みの結果として、鋳造鋳型が、高温溶融金属に起因する熱の流入の結果であるプロセス熱を放射し始め、及び、
− ここで、溶融金属に起因する熱の流入の結果として、鋳型材料の結合剤が気化及び燃焼し始めるので、結合剤がその効果を失い、鋳造鋳型が崩壊して破片になる。
2 鋳造鋳型
3 鋳型空洞
4 外周端部肩
5 収集用パン
6 封止要素
7 エンクロージャ(囲い込み)
8 鋳造鋳型2の外側表面
9 エンクロージャ7の内側表面
10 充填スペース
11 エンクロージャの開口
12 分配システム
13 カバー
14 カバー13の開口
15 ガス注入口
16 取入れ口
17 冷却トンネル
18 粉砕ミル
19 排ガス排出口
B 破片
F 充填材料
G 鋳造部品
S1、S2 酸素含有ガス流
T 熱反応装置
U 環境
V 貯蔵ホッパー
Claims (15)
- 鋳造部品(G)を鋳造する方法であって、生成される前記鋳造部品を形成するための空洞(3)を囲む鋳造鋳型(2)の中に溶融金属が鋳込まれ、前記鋳造鋳型(2)は、鋳型材料で形成される1つ又はそれ以上の鋳造鋳型部品又はコアで構成されるロストモールドとして設計され、前記鋳型材料は、中子砂、結合剤、及びオプションとして前記鋳型材料の特定の性質を調節するための1つ又はそれ以上の添加剤から成り、前記方法は、以下の作業ステップ、即ち、
− 前記鋳造鋳型(2)を準備するステップと、
− 囲い込み(7)内に前記鋳造鋳型(2)を収容し、前記囲い込み(7)の少なくとも1つの内側表面区域(9)と、前記鋳造鋳型(2)の関連する外側表面区域(8)との間に充填スペース(10)を形成するステップと、
− 前記充填スペース(10)を自由流動充填材料(F)で充填するステップと、
− 前記鋳造鋳型(2)の中に前記溶融金属を鋳込むステップと、
を含み、
− 前記溶融金属の前記鋳込みの結果として、前記鋳造鋳型(2)が、前記高温溶融金属に起因する熱の流入の結果であるプロセス熱を放射し始め、
− 前記溶融金属に起因する熱の流入の結果として、前記鋳型材料の前記結合剤が気化及び燃焼し始めるので、前記結合剤がその効果を失い、前記鋳造鋳型(2)が崩壊して破片(B)になり、
前記充填スペース(10)内に流し込まれる前記充填材料(F)は、前記充填スペース(10)の充填後に、前記充填材料(F)によって形成される前記充填材料充填物にガス流(S1、S2)が浸透することができるような低い嵩密度を有し、前記充填スペース(10)の充填時、前記充填材料(F)は、所定の最低温度(Tmin)であり、当該最低温度(Tmin)から出発して、前記充填材料(F)は、その温度が、前記鋳造鋳型(2)から前記放射される熱及び前記結合剤の前記燃焼の間に放出される熱によって生成される前記プロセス熱の結果として、前記結合剤が前記鋳造鋳型(2)から気化して前記充填材料(F)と接触して発火し、燃焼し始める境界温度(T境界)より高い温度に加熱される、
ことを特徴とする方法。 - 前記充填材料(F)の嵩密度Sdと比熱容量cpの積P=Sd×cpが、下式:
P≦1kJ/dm 3 K
を満たすことを特徴とする、請求項1に記載の方法。 - 前記嵩密度Sdが最大で4kg/dm3になることを特徴とする、請求項1又は請求項2に記載の方法。
- 前記充填材料(F)は、最大で1kJ/kgKの比熱容量cpを有することを特徴とする、請求項1〜3の何れか一項に記載の方法。
- 前記充填材料(F)は、1.5〜100mmの平均直径を有する粒状物の形態であることを特徴とする、請求項1〜4の何れか一項に記載の方法。
- 前記充填スペース(10)の充填中の前記充填材料(F)の温度は、少なくとも500℃に達することを特徴とする、請求項1〜5の何れか一項に記載の方法。
- 前記境界温度(T境界)は700℃に達することを特徴とする、請求項1〜6の何れか一項に記載の方法。
- 前記囲い込み(7)はガス注入口(15)及び排ガス排出口(19)を有し、前記充填スペース(10)内に含まれる前記充填材料(F)は、少なくとも時々特定の区域内に酸素含有ガス流(S1、S2)が貫流することを特徴とする、請求項1〜7の何れか一項に記載の方法。
- 前記ガス流(S1、S2)は、室温を越える温度まで加熱されることを特徴とする、請求項8に記載の方法。
- 前記ガス流(S1、S2)は、前記排ガス排出口(19)から流出する前記排ガスの体積流に応じて調整されることを特徴とする、請求項8又は請求項9に記載の方法。
- 排ガス計測が前記排ガス排出口(19)において行われ、前記ガス流(S1、S2)は、この計測の結果に応じて調整されることを特徴とする、請求項8〜10の何れか一項に記載の方法。
- 前記排ガス排出口(19)から流出する前記燃焼ガスの部分流が、前記酸素含有ガス流(S1、S2)と混合され、結果として生じる混合物が前記囲い込み(7)内に送り込まれることを特徴とする、請求項8〜11の何れか一項に記載の方法。
- 前記囲い込み(7)には、前記結合剤の燃焼生成物中に含まれる有毒物質を分解するための触媒コンバータが備えられることを特徴とする、請求項1〜12の何れか一項に記載の方法。
- 前記鋳造鋳型(2)は篩基盤(1)の上に配置され、前記鋳造鋳型(2)の前記破片(B)及び前記充填材料(F)が一緒に前記篩基盤(1)を通して少しずつ流れ落ち、一緒に収集されて処理され、後の処理のために互いから分離されることを特徴とする、請求項1〜13の何れか一項に記載の方法。
- 前記鋳造鋳型(2)の崩壊後、前記鋳造部品(G)が、特定の冷却曲線に従う制御された仕方で冷却される熱処理を通過することを特徴とする、請求項1〜14の何れか一項に記載の方法。
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DE102014110826.4 | 2014-07-30 | ||
DE102014110826.4A DE102014110826A1 (de) | 2014-07-30 | 2014-07-30 | Verfahren zum Gießen von Gussteilen |
PCT/EP2015/066546 WO2016016035A1 (de) | 2014-07-30 | 2015-07-20 | VERFAHREN ZUM GIEßEN VON GUSSTEILEN |
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JP2017525570A JP2017525570A (ja) | 2017-09-07 |
JP6275324B2 true JP6275324B2 (ja) | 2018-02-07 |
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US (1) | US9890439B2 (ja) |
EP (2) | EP3597329B1 (ja) |
JP (1) | JP6275324B2 (ja) |
KR (1) | KR101845505B1 (ja) |
CN (1) | CN106536083B (ja) |
BR (1) | BR112016023696B8 (ja) |
CA (1) | CA2948750C (ja) |
DE (1) | DE102014110826A1 (ja) |
DK (1) | DK3119545T3 (ja) |
ES (1) | ES2759264T3 (ja) |
HR (2) | HRP20240471T1 (ja) |
HU (2) | HUE046428T2 (ja) |
MX (1) | MX361595B (ja) |
PL (2) | PL3119545T3 (ja) |
PT (1) | PT3119545T (ja) |
RS (2) | RS59702B1 (ja) |
RU (1) | RU2645824C1 (ja) |
SI (1) | SI3119545T1 (ja) |
WO (1) | WO2016016035A1 (ja) |
ZA (1) | ZA201606111B (ja) |
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CN106077474A (zh) * | 2016-07-26 | 2016-11-09 | 柳州金特新型耐磨材料股份有限公司 | 一种后桥壳体热处理工艺 |
US10378661B2 (en) | 2016-11-08 | 2019-08-13 | Mueller International, Llc | Valve body with integral bypass |
US10661332B2 (en) | 2017-04-10 | 2020-05-26 | Mueller International, Llc | Monolithic bypass |
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