JPS62234650A - Forming mold for casting - Google Patents
Forming mold for castingInfo
- Publication number
- JPS62234650A JPS62234650A JP61285026A JP28502686A JPS62234650A JP S62234650 A JPS62234650 A JP S62234650A JP 61285026 A JP61285026 A JP 61285026A JP 28502686 A JP28502686 A JP 28502686A JP S62234650 A JPS62234650 A JP S62234650A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molds
- core
- ceramic
- molten metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 27
- 238000009423 ventilation Methods 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 7
- 229910052727 yttrium Inorganic materials 0.000 claims description 5
- 239000006104 solid solution Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 33
- 239000002184 metal Substances 0.000 abstract description 33
- 238000009826 distribution Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 20
- 230000008023 solidification Effects 0.000 description 20
- 238000000465 moulding Methods 0.000 description 8
- 239000000155 melt Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052745 lead Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 238000013022 venting Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- XRCFPDSYKVZVGI-UHFFFAOYSA-N [Mo].[Cr].[Cu] Chemical compound [Mo].[Cr].[Cu] XRCFPDSYKVZVGI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 229910052706 scandium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910003564 SiAlON Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052575 non-oxide ceramic Inorganic materials 0.000 description 1
- 239000011225 non-oxide ceramic Substances 0.000 description 1
- -1 novinite steel Chemical class 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、ダイカス１−法、加圧鋳造法、減圧鋳造法な
どの鋳造法に利用されるＵ進用成形型に関し、特に６０
０〜１６５０°Ｃ位迄の融点温度を持つ溶解金属を用い
且つ圧ノｊをかりながら鋳造成形する成形型に関する。Detailed Description of the Invention <Field of Industrial Application> The present invention relates to a U-advanced mold used in casting methods such as the die casting method, pressure casting method, and vacuum casting method, and in particular,
This invention relates to a mold for casting using a molten metal having a melting point temperature of about 0 to 1650°C while applying a pressure nozzle.
〈従来の技術〉
この種鋳造法は、雄叫両型を組とする成形型内に溶湯を
注入し、該溶湯に圧力及び冷却をかりなから固相、液相
が共存する凝固区間及び凝固範囲まで降温して金属製品
を製造するものであるが、その凝固区間及び凝固範囲に
おける成形型内の型温分布、詳しくは成形型全体の冷却
速度の調整は製品組織の超微細化各種元素の合金配合組
成に大きく影響するため、溶湯凝固時におりる成形型全
体の型温分布のコントロールが重要である。<Prior art> In this type of casting method, molten metal is injected into a mold consisting of a pair of molds, and the molten metal is pressurized and cooled until the solidification zone and solidification range where the solid phase and liquid phase coexist are applied. The temperature distribution within the mold during the solidification period and solidification range, and more specifically the cooling rate of the entire mold, is controlled by ultra-fine product structures, alloys of various elements, etc. It is important to control the mold temperature distribution throughout the mold during solidification of the molten metal, as it greatly affects the compounding composition.
しかし乍ら、従来の成形型は雄叫両型ともに耐熱金属材
であるために、全体的に冷却速度が急速になる傾向にあ
り、成形型内各部の型温分布のコントロールが難しくそ
の結果、他の部分に比べて凝固が遅れる熱量の多い肉厚
部等には溶は合わないで凝固して深い継ぎ目となって製
品内部に浸入したり、ときには穴がおいてしまうなどの
ひけ（くぼみ）、引は巣などの致命的な欠陥原因になっ
ていた。However, because both conventional molds are made of heat-resistant metal materials, the overall cooling rate tends to be rapid, making it difficult to control the mold temperature distribution in each part of the mold. The melt does not fit into the thick parts of the wall where solidification takes a lot of heat compared to other parts, and the melt solidifies, forming deep seams and penetrating into the product, and sometimes causing sink marks (indentations) such as holes. This caused fatal defects such as nests.
また、成形型内の残留空気や溶湯の注入時に成形型内に
巻き込まれた巻込みガス及び凝固時に成形型内に発生す
るガスを排除するガス抜き路は大気へ通じる孔又は溝を
もって形成しているため、溶湯が凝固し始めて凝固膜が
形成されると孔又は溝からなるガス抜き路が塞がれてし
まって速やかにガス抜きが行なわれない結果になって残
留空気や巻込み空気及びガスが成形型内に残り、引は巣
やガス巣が製品にできる原因になっていた。In addition, a gas vent path for eliminating residual air in the mold, entrained gas caught in the mold during injection of molten metal, and gas generated in the mold during solidification is formed with a hole or groove leading to the atmosphere. Therefore, when the molten metal begins to solidify and a solidified film is formed, the gas vent path consisting of holes or grooves is blocked and gas is not vented promptly, resulting in residual air, entrained air, and gas. remained in the mold, causing gas bubbles and gas bubbles to form in the product.
更に、成形型の雄型か雌型に嵌装備えられて溶湯の注入
後、該溶湯に圧力をかける入子（可動ボブ、可動ピン等
）は耐熱金属材であるために、６００〜１６５０℃位迄
の高温溶解金属から受ける熱衝撃に耐え得ない難点があ
り、その結果、入子の渇押し面は繰り返えし受ける熱衝
撃によって球面状に損傷したり１割れが発生し、製品の
品質及び寸法精度に大きく影響していた。Furthermore, since the inserts (movable bob, movable pin, etc.) that are fitted into the male or female mold and apply pressure to the molten metal after injection are made of heat-resistant metal, the temperature is 600 to 1650°C. As a result, the drying surface of the insert is damaged in a spherical shape or cracks occur due to the repeated thermal shock, resulting in the product being damaged. This greatly affected quality and dimensional accuracy.
〈発明が解決しようとする問題点〉
本発明が解決しようとする問題点は、溶湯の凝固時にお
ける成形型内の型温分布のコントロールを容易にすると
共に、残留空気や巻込み空気及び発生ガスを有効且つ速
やかに排除し得、しかも耐久性大なる鋳造用成形型を提
供することにある。<Problems to be Solved by the Invention> The problems to be solved by the present invention are to facilitate control of mold temperature distribution within the mold during solidification of molten metal, and to reduce residual air, entrained air, and generated gas. It is an object of the present invention to provide a casting mold which can effectively and quickly eliminate the problem and which has high durability.
〈問題点を解決するための手段〉
上記問題を解決するために本発明が講じる技術的手段は
、中子又は入子を備える雄叫一対の成形型の一方又は両
方をセラミックスにするとともに両型に加熱及び冷却機
構を設け、且つ前記中子に耐熱性を有する多孔質性通気
材を組込んでガス抜き路を形成すると共に、中子又は入
子をセラミックス、若しくは耐熱性を右する多孔質性通
気材にしたことである。<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to make one or both of a pair of molds with a core or insert made of ceramic, and to make both molds ceramic. A heating and cooling mechanism is provided in the core, and a porous ventilation material having heat resistance is incorporated into the core to form a gas venting passage, and the core or insert is made of ceramic or a porous material having heat resistance. This is because it is made into a breathable material.
〈作用〉
本発明は、成形型内の残留ガスや溶湯の注入時に巻き込
まれた巻込み空気及び溶湯の凝固時に発生する発生ガス
を多孔質性通気材からなるガス抜き路より吸引排除する
と共に、セラミックス若しくは多孔質性通気材からなる
中子又は入子で注入充填された溶湯に圧力をかけて凝固
させる。<Function> The present invention suctions and removes residual gas in the mold, entrained air caught during injection of molten metal, and gas generated during solidification of molten metal through a gas vent path made of a porous ventilation material. Pressure is applied to the molten metal filled with a core or insert made of ceramic or porous ventilation material to solidify it.
〈実施例〉
本発明の実施例を図面に基づいて説明すると、成形型（
Ａ＞は組となる雄型（ａｌ）と雌型（ａ２）とからなり
、（１）（２）は中子、（３）・・・は入子であり、雄
叫両型（ａ＋ ）（ａ２）の型閉め後、成形部（ａ）内
に製品素材の溶１ （Ｍ）を注入充填して加圧凝固させ
て製品を成形する。<Example> When an example of the present invention is described based on the drawings, a mold (
A> consists of a pair of male type (al) and female type (a2), (1) and (2) are the core, (3)... are nested, and the male type (a+) After closing the mold in (a2), the product material Molten 1 (M) is injected and filled into the molding part (a) and solidified under pressure to mold the product.
前記溶１（Ｍ）は、その素材がとくに制限されるもので
はないが好ましくは超塑性金属、例えばアルミ系合金を
主材料として、０〜２０ｗｔ％（，０〜２０ｗｔ％Ｃｕ
、 Ｏ〜１０ｗｔ％−，Ｏ〜２０ｗｔ％Ｚｎ、Ｃ）〜１
２ｗｔ％Ｈｎ、 Ｑ 〜５ｗｔ％Ｆｅ、Ｏ〜３ｗｔ％■
ｉ、０〜５ｗｔ％に、０〜５ｗｔ％Ｃｒ、０〜３ｗｔ％
Ｐｂ、 Ｏ〜３ｗｔ％Ｓｎ、 Ｑ 〜１０ｗｔ％Ｃ，Ｏ
〜５ｗｔ％Ｂｅ、 Ｑ 〜３ｗｔ％Ｗ、Ｏ〜３ｗｔ％〜
、０〜５ｗｔ％Ｂ、Ｏ〜５ｗｔ％Ｙ。Although the material of the melt 1 (M) is not particularly limited, it is preferably made of a superplastic metal, such as an aluminum alloy, and contains 0 to 20 wt% (0 to 20 wt% Cu).
, O~10wt%-, O~20wt%Zn, C)~1
2wt%Hn, Q~5wt%Fe, O~3wt%■
i, 0 to 5 wt%, 0 to 5 wt% Cr, 0 to 3 wt%
Pb, O~3wt%Sn, Q~10wt%C,O
~5wt%Be, Q ~3wt%W, O~3wt%~
, 0-5wt%B, O-5wt%Y.
０〜５ｗｔ％Ｓｃ、 Ｑ 〜５ｗｔ％Ｖ、Ｏ〜５ｗｔ
％に、○〜５ｗｔ％Ｎｂ、銅系合金を主材料として、Ｏ
〜２０ｗｔ％淑、 Ｏ〜２０ｗｔ％Ａｔ！、 Ｏ〜５ｗ
ｔ％−２Ｏ〜３０ｗｔ％Ｚｎ 、 Ｏ〜２０ｗｔ％Ｈｎ
、 Ｏ〜３ｗｔ％Ｆｅ、Ｏ〜５ｗｔ％■ｉ。0~5wt%Sc, Q~5wt%V, O~5wt
%, ○~5wt% Nb, copper alloy as main material, O
~20wt% Suk, O~20wt%At! , O~5w
t%-2O~30wt%Zn, O~20wt%Hn
, O~3wt%Fe, O~5wt%■i.
Ｏ〜１０ｗｔ％ｌ＆、 Ｏ〜１０ｗｔ％Ｃｒ、Ｏ〜５ｗ
ｔ％Ｐｂ、 ０〜５Ｖ１ｔ％Ｓｎ、 Ｏ〜２０ｗｔ％Ｃ
，Ｏ〜５ｗｔ％Ｂｅ、Ｏ〜１０ｗｔ％Ｗ、Ｏ〜５ｗｔ％
Ｂ、０〜５ｗｔ％Ｓｂ、 Ｏ〜５ｗｔ％Ｙ、０〜５ｗｔ
％Ｓｃ、鉄系合金を主材料として、Ｏ〜４０ｗｔ％Ｃ，
Ｏ〜５ｗｔ％Ｈｎ、 Ｑ 〜５ｗｔ％（，０〜１０ｗｔ
％Ｃｒ 、 Ｏ〜２０ｗｔ％Ｉ＆、Ｏ〜５ｗｔ％ＭＯ，
Ｏ〜３ｗｔ％Ｖ、Ｏ〜５ｗｔ％Ｐ、Ｏ〜２ｗｔ％Ｓ、０
〜３ｗｔ％Ｐｂ、 Ｏ〜１０ｗｔ％Ｓｎ、 Ｏ〜１０ｗ
ｔ％Ｂｅ、 Ｑ 〜３ｗｔ％〜、０〜２４ｗｔ％仮、Ｏ
〜２０ｗｔ％Ｗ、Ｏ〜５ｗｔ％Ｂ、Ｏ〜５ｗｔ％Ｃｏ、
Ｏ〜５ｗｔ％Ｙ、Ｏ〜５ｗｔ％Ｓｃ。O~10wt%l&, O~10wt%Cr, O~5w
t%Pb, 0~5V1t%Sn, O~20wt%C
, O~5wt%Be, O~10wt%W, O~5wt%
B, 0-5wt%Sb, O-5wt%Y, 0-5wt
%Sc, with iron-based alloy as the main material, O~40wt%C,
O~5wt%Hn, Q~5wt%(,0~10wt%
%Cr, O~20wt%I&, O~5wt%MO,
O~3wt%V, O~5wt%P, O~2wt%S, 0
~3wt%Pb, O~10wt%Sn, O~10w
t%Be, Q ~3wt%~, 0~24wt% provisional, O
~20wt%W, O~5wt%B, O~5wt%Co,
O~5wt%Y, O~5wt%Sc.
０〜５ｗｔ％Ｓｅ、亜鉛系合金を主材料として、Ｏ〜５
ｗｔ％Ｓｔ、 Ｏ〜１０ｗｔ％ＣＬＬ、 Ｏ〜５ｗｔ％
−１０〜６８ｗｔ％Ｍ、Ｏ〜５ｗｔ％Ｈｎ、 Ｑ 〜３
ｗｔ％Ｆｅ、０〜３ｗｔ％Ｔｉ、 Ｏ〜５ｗｔ％Ｎ、、
Ｏ〜３ｗｔ％Ｃｒ、Ｏ〜３ｗｔ％Ｐｂ、 Ｏ〜１０ｗ
ｔ％Ｓｎ、 Ｏ〜１０ｗｔ％Ｂｅ、 Ｏ〜５ｗｔ％Ｐ。0 to 5 wt% Se, with zinc alloy as the main material, O to 5
wt%St, O~10wt%CLL, O~5wt%
-10~68wt%M, O~5wt%Hn, Q~3
wt%Fe, 0~3wt%Ti, O~5wt%N,,
O~3wt%Cr, O~3wt%Pb, O~10w
t%Sn, O~10wt%Be, O~5wt%P.
Ｑ 〜４０ｗｔ％Ｃ，Ｏ〜５ｗｔ％Ｗ、Ｏ〜３ｗｔ％Ｂ
などである。Q ~40wt%C, O~5wt%W, O~3wt%B
etc.
また、セラミックスの関係材料としては、はう化物、炭
化物、窒化物、けい化物などの非酸化物系セラミックス
および酸化物系セラミックス等の粉末状あるいは繊維状
のものを混合して成形するも自由である。In addition, as ceramic-related materials, powdered or fibrous materials such as non-oxide ceramics such as ferrides, carbides, nitrides, and silicides and oxide ceramics may be mixed and molded. be.
雄型（ａｌ）は、ハイクロムモリブデン銅などの耐熱金
属（焼結金属を含む）で形成し、この型（ａｌ）内には
加熱機構（４）及び冷却機構（４′）を適宜に配設する
。The male mold (al) is made of a heat-resistant metal (including sintered metal) such as high chromium molybdenum copper, and a heating mechanism (4) and a cooling mechanism (4') are appropriately arranged inside this mold (al). Set up
雌型（ａＺ）は、セラミックス型とし、該型に加熱機構
（５）及び冷却機構（５′）を配設するとともに一側面
より側方へ摺動する中子（１）を取付け、該中子（１）
を成形部（ａ＞内へ出没進退自在とし、前進動作させて
成形部（ａ）内に没入位置させる。The female mold (aZ) is a ceramic mold, in which a heating mechanism (5) and a cooling mechanism (5') are arranged, and a core (1) that slides laterally from one side is attached. Child (1)
is made to be able to move forward and backward into the molding part (a), and is moved forward to be retracted into the molding part (a).
中子（１）は、耐熱金属材若しくはセラミックスでもっ
て形成し、その軸芯線上に耐熱性を有する多孔質性通気
材、例えばポーラスセラミックス（６）を両側端面に渉
り貫通状に嵌挿装着し、該ポーラスセラミックス（６）
により中子（１）にガス抜き路（７）を構成し、このガ
ス抜き路（７）の外側端にはバキューム機構〈図示セズ
）を接続し、該バキューム機構を型閉め開始同時又は型
閉め後作動させて強制的に成形部（ａ）の残留空気や溶
１（Ｍ）の注入時巻き込まれた巻込み空気及び該成形部
（ａ）で発生ずるガスの吸引排除を行なう様にする。The core (1) is made of a heat-resistant metal material or ceramics, and a heat-resistant porous ventilation material, such as a porous ceramic (6), is inserted and inserted in a penetrating manner on both end faces on the core (1). The porous ceramics (6)
A gas venting path (7) is formed in the core (1), and a vacuum mechanism (shown in the figure) is connected to the outer end of this gas venting path (7), and the vacuum mechanism is used at the same time as mold closing starts or when the mold is closed. It is operated afterward to forcibly suction and remove residual air in the molding section (a), entrained air drawn in during injection of the melt 1 (M), and gas generated in the molding section (a).
また、この旧型（ａＺ）には該型（ａＺ）下面において
支持板（８）に止着支持させた中子（２）と入子（３）
・・・を上下方向に進退自在に貫挿備える。In addition, this old model (aZ) has a core (2) and a nest (3) fixedly supported by a support plate (8) on the lower surface of the model (aZ).
... is inserted and inserted so that it can move forward and backward in the vertical direction.
この中子（２）と入子（３）・・・は、成形部（ａ）内
に溶１ （Ｍ）が注入充填されると支持板（８）により
上動前進させてそれらの渇押し面（２ａ）（３ａ）で溶
１ （Ｍ）に圧力をかけるためのもので、セラミックス
、若しくは耐熱性を有する多孔質性通気材によって形成
する。When the melt 1 (M) is injected and filled into the molding part (a), the core (2) and the insert (3) are moved upwardly by the support plate (8) to squeeze them. The surfaces (2a) and (3a) are used to apply pressure to the melt 1 (M), and are made of ceramic or a heat-resistant porous ventilation material.
尚、中子（２）及び入子（３）を前記ガス抜き路（７）
と同じ耐熱性を有する多孔質性通気材により形成するこ
とによって、加圧兼ガス抜き作用を備えることができ、
成形部（ａ）内から残留空気や巻込み空気及び発生ガス
の排除をより一層有効に且つ速やかに行なうことが出来
る。尚この際には支持板（８）に連通孔を開穿してガス
抜き路（７）と同様にバキューム機構を接続する。In addition, the core (2) and the insert (3) are connected to the gas venting path (7).
By forming the porous ventilation material with the same heat resistance, it can have a pressurizing and degassing effect,
Residual air, entrained air, and generated gas can be removed more effectively and quickly from inside the molded part (a). In this case, a communication hole is opened in the support plate (8) and a vacuum mechanism is connected thereto in the same way as the gas vent path (7).
断るセラミックスは、α−８ｊ３Ｎ＋構造をもつ固’ｔ
１体Ｔ”、ＭＸ （８４，＃）＋２ （０，Ｎ）＋６
（上式においでＭはＭｇ、Ｃａ、Ｙ等）で示されるα−
サイアロンの粒状晶（α相） ６０ｖｏｌ％とβ−＄３
Ｎ４の柱状晶（β相） ４０ｖｏｌ％間に焼成して浸入
固溶させた緻密な複合（固溶）組織相からなるホットプ
レスα−サイアロン質セラミックス或いは常圧焼結α−
サイアロン質セラミックスであり、α−サイアロン粒状
晶６０ｖｏ １％とβ−（３Ｎ４柱状晶４０ｖｏ １％
との共存する領域゛部分安定化゛′α−サイアロン領域
とよべる組成範囲において、強度、高度、破壊靭性値等
の機械的特性に優れ、且つ耐熱衝撃抵抗性、耐薬品耐候
性に優れるものである。Ceramics that are refused are solids with α-8j3N+ structure.
1 body T”, MX (84,#)+2 (0,N)+6
(In the above formula, M is Mg, Ca, Y, etc.)
Sialon granular crystals (α phase) 60 vol% and β-$3
N4 columnar crystals (β phase): Hot pressed α-sialon ceramics or pressureless sintered α-, consisting of a dense composite (solid solution) structure phase that is fired and infiltrated into a solid solution between 40 vol% of N4 columnar crystals (β phase)
It is a sialon ceramic, containing 60vo 1% of α-sialon granular crystals and 40vo 1% of β-(3N4 columnar crystals).
In the composition range called the ``partially stabilized α-SiAlON region,'' it has excellent mechanical properties such as strength, hardness, and fracture toughness, as well as excellent thermal shock resistance and chemical weather resistance. be.
而して、断る実施例は型閉め開始又は型閉め後、相離両
型（ａ＋ ）（ａＺ ）の加熱機構（４）（５）及び冷
却機構（／Ｉ’ ）（５’ ）により成形部（ａ）に適
度な冷却、加熱をかけて型温分布のコントロールを図り
ながら且つバキューム機構を作動させてポーラスセラミ
ックスく６）からなるガス抜き路（７）により強制的に
吸引しながら成形部（ａ）内に溶１ （Ｍ）を注入する
。そして、溶１ （Ｍ）の注入充填が終了すると略同時
にセラミックス、若しくは多孔質性通気材からなる中子
（２）及び入子（３）・・・を上動前進させて溶湯（Ｍ
）に圧力をかけながら溶湯（Ｍ）の凝固区間及び凝固範
囲まで相離両型（ａ＋ ）（ａＺ）を冷却降温させる。Therefore, in the example of refusal, the molding part is heated by the heating mechanism (4), (5) and cooling mechanism (/I') (5') of the separated two types (a+) (aZ) after starting mold closing or after mold closing. While controlling the temperature distribution of the mold by applying appropriate cooling and heating to (a), the molded part ( Inject the solution 1 (M) into a). Then, almost at the same time as the injection and filling of the molten metal (M) is completed, the core (2) and the insert (3) made of ceramics or porous ventilation material are moved upwardly to advance the molten metal (M).
) while applying pressure to the molten metal (M), the temperature of the two-separated type (a+) (aZ) is lowered to the solidification zone and solidification range.
尚、バキューム機構によるガス抜き路（７）からの強制
吸引は型閉め開始又は型閉め後から溶湯（Ｍ）が凝固区
間及び凝固範囲まで降温して製品が得られるまで常時行
なって成形部（ａ）内の残留空気や巻込み空気及び熱量
の多い肉厚部等に発生する発生ガスを排除する。Incidentally, the forced suction from the gas vent passage (7) by the vacuum mechanism is constantly performed from the start of mold closing or after mold closing until the temperature of the molten metal (M) falls to the solidification zone and solidification range and a product is obtained. ), residual air and entrained air, and gas generated in thick wall parts with a large amount of heat are eliminated.
更に、溶湯（Ｍ）の凝固区間及び凝固範囲においても加
熱機構（４）（５）と冷却機構（／Ｉ’）（５′）によ
り型温分布のコントロールを図り、熱量の多い肉厚部等
に発生ガスが残留しない様にする。Furthermore, the mold temperature distribution is controlled by the heating mechanism (4) (5) and the cooling mechanism (/I') (5') in the solidification zone and solidification range of the molten metal (M), and the mold temperature distribution is controlled by the heating mechanism (4) (5) and the cooling mechanism (/I') (5'). Make sure that no generated gas remains.
尚、上記実施例にあっては成形型（Ａ）の雄型（ａｌ）
をハイクロムモリブデン銅などの耐熱金属型として詳述
したが、雌型（ａ２）と同様にセラミックス型として使
用することもにり、セラミックスとノビナイト鋼などの
低膨張金属、耐熱金属と組み合せるも任意である。In addition, in the above embodiment, the male mold (al) of the mold (A)
Although it has been described in detail as a heat-resistant metal type such as high chromium molybdenum copper, it can also be used as a ceramic type like the female type (a2), and it can also be used in combination with ceramics and low expansion metals such as novinite steel, or heat-resistant metals. Optional.
〈発明の効果〉
本発明鋳造用成形型を叙上の如く構成したので下記の効
果を奏する。<Effects of the Invention> Since the casting mold of the present invention is configured as described above, the following effects are achieved.
（１）成形型の雄型又は雌型の一方又は両方をセラミッ
クス型としたので、セラミックス型により成形型内の型
温分布のコントロールが容易になる。よって、成形型内
に注入充填された溶湯全体を均一に凝固区間及び凝固範
囲まで降温させることができるため、凝固の遅れによる
ひけ（くぼみ）、引は巣をなくした超微細組織からなる
高密度で高品質な製品が成形出来る。(1) Since one or both of the male mold and the female mold are made of ceramic mold, the mold temperature distribution within the mold can be easily controlled by the ceramic mold. Therefore, the temperature of the entire molten metal injected into the mold can be uniformly lowered to the solidification zone and solidification range, resulting in a high-density structure consisting of an ultra-fine structure that eliminates sinkholes and cavities caused by delayed solidification. high quality products can be molded.
（２）ガス抜き路を耐熱性を右で−る多孔質性通気材に
より形成したので、注入されてきた溶湯がガス抜き路に
当っても凝固膜が形成されることなく溶湯が凝固区間及
び凝固範囲まで降温されるまで確実に確保されており、
残留空気や巻込み空気及び発生ガスを有効に且つ速やか
に排除出来る。(2) Since the gas vent path is formed from a porous ventilation material with good heat resistance, even if the injected molten metal hits the gas vent path, a coagulation film will not be formed and the molten metal will flow into the solidification zone and This is ensured until the temperature drops to the solidification range,
Residual air, entrained air, and generated gas can be effectively and quickly removed.
（３）成形型内に注入充填された溶湯に圧力をかける中
子又は入子をセラミックス、若しくは耐熱性を有する多
孔質性通気材により形成したので、６００〜１６５０℃
位迄の高温溶解金属であっても繰り返えし受ける熱衝撃
によって溶損することはない。しかも、成形型はセラミ
ックス型であるために耐久性大なる剛性を持った成形型
となり長期間使用し得る。(3) The core or insert that applies pressure to the molten metal injected into the mold is made of ceramics or a heat-resistant porous ventilation material, so the temperature is 600 to 1650℃.
Even high-temperature molten metals will not melt and fail due to repeated thermal shocks. Moreover, since the mold is a ceramic mold, it has great durability and rigidity and can be used for a long period of time.
依って、所期の目的を達成し得る。Therefore, the intended purpose can be achieved.
図面は本発明鋳造用成形型の実施例を示す縦断正面図で
ある。
尚、図中
（Ａ）：成形型 （ａ＋ ）：雄型
（ａ２）：＠型 （１）（２）：中子（３）：入子
（４）（５）：加熱機構（’Ｉ’ ＞（５’ ）：
冷却機構
（Ｍ）：溶湯The drawing is a longitudinal sectional front view showing an embodiment of the casting mold of the present invention. In addition, (A) in the figure: Molding mold (a+): Male mold (a2): @ mold (1) (2): Core (3): Insert
(4) (5): Heating mechanism ('I'>(5'):
Cooling mechanism (M): Molten metal
Claims (2)
は両方をセラミックスにするとともに両型に加熱及び冷
却機構を設け、且つ前記中子に耐熱性を有する多孔質性
通気材を組込んでガス抜き路を形成すると共に、中子又
は入子をセラミックス、若しくは耐熱性を有する多孔質
性通気材にして成る鋳造用成形型。(1) One or both of a pair of male and female molds each having a core or insert are made of ceramic, both molds are provided with a heating and cooling mechanism, and the core is provided with a heat-resistant porous ventilation material. A mold for casting which is assembled to form a gas vent passage and whose core or insert is made of ceramics or a heat-resistant porous ventilation material.
つ固溶体で、Ｍｘ（Ｓｉ、Ａｌ）＿１＿２（Ｏ、Ｎ）＿
１＿６（上式においてＭはＭｇ、Ｃａ、Ｙ等）で示され
るα−サイアロン粒状晶６０ｖｏｌ％とβ−Ｓｉ＿３Ｎ
＿４柱状晶４０ｖｏｌ％との共存する領域“部分安定化
”α−サイアロン領域とよべる緻密な複合組織相からな
るホットプレスα−サイアロン質セラミックス或いは常
圧焼結α−サイアロン質セラミックスであることを特徴
とする特許請求の範囲第１項記載の鋳造用成形型。(2) The above ceramic is a solid solution with α-Si_3N_4 structure, Mx(Si, Al)_1_2(O, N)_
1_6 (in the above formula, M is Mg, Ca, Y, etc.) α-sialon granular crystals 60 vol% and β-Si_3N
_4 Hot pressed α-sialon ceramics or pressureless sintered α-sialon ceramics consisting of a dense composite structure phase called “partially stabilized” α-sialon region where 40 vol% of columnar crystals coexist A mold for casting according to claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60-270480 | 1985-11-30 | ||
| JP27048085 | 1985-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62234650A true JPS62234650A (en) | 1987-10-14 |
Family
ID=17486884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61285026A Pending JPS62234650A (en) | 1985-11-30 | 1986-11-28 | Forming mold for casting |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS62234650A (en) |
| KR (1) | KR870004754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636968B4 (en) * | 1996-09-12 | 2008-08-07 | Steinbeis Transferzentrum Arbeitsgemeinschaft Metallguss An Der Fachhochschule Aalen | Process for the production of metallic prototypes |
| CN109482837A (en) * | 2018-12-29 | 2019-03-19 | 重庆全能电器有限公司 | A kind of die casting machine for end cap |
-
1986
- 1986-11-24 KR KR860009905A patent/KR870004754A/en not_active Application Discontinuation
- 1986-11-28 JP JP61285026A patent/JPS62234650A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636968B4 (en) * | 1996-09-12 | 2008-08-07 | Steinbeis Transferzentrum Arbeitsgemeinschaft Metallguss An Der Fachhochschule Aalen | Process for the production of metallic prototypes |
| CN109482837A (en) * | 2018-12-29 | 2019-03-19 | 重庆全能电器有限公司 | A kind of die casting machine for end cap |
| CN109482837B (en) * | 2018-12-29 | 2021-02-19 | 重庆全能电器有限公司 | Die casting machine for end cover |
Also Published As
| Publication number | Publication date |
|---|---|
| KR870004754A (en) | 1987-06-01 |
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