JPH0357533A - Mold for metallic mold casting - Google Patents
Mold for metallic mold castingInfo
- Publication number
- JPH0357533A JPH0357533A JP19111989A JP19111989A JPH0357533A JP H0357533 A JPH0357533 A JP H0357533A JP 19111989 A JP19111989 A JP 19111989A JP 19111989 A JP19111989 A JP 19111989A JP H0357533 A JPH0357533 A JP H0357533A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- graphite
- casting
- metal
- cavity
- 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 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 15
- 239000010439 graphite Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 229910001018 Cast iron Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000005496 eutectics Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、鋳鉄の金型鋳造に使用する鋳型の改良に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a mold used for mold casting of cast iron.
（従来の技術）
鋳鉄の金型鋳造に使用する鋳型は、ねずみ鋳鉄、球状黒
鉛鋳鉄および鋼などから形成されている（例えば、「鋳
鉄の金型鋳造」 （昭和５１．１１．１０）社団法人日
本鋳物協会 Ｐ．↓３９〜」４０）。(Prior art) Molds used for cast iron mold casting are made of gray cast iron, spheroidal graphite cast iron, steel, etc. (For example, "Cast iron mold casting" (November 10, 1973) Japan Foundry Association P. ↓39~'40).
（発明が解決しようとする課題）
鋳鉄の金型鋳造は、鋳鉄製金型又は鋳鋼製金型内に溶湯
を直接注湯するため、熱応力による金型の歪、初期割れ
、クレージング、スポーリングあるいは溶損・溶着など
の金型破損を生じ、金型寿命が極端に短かくなるという
問題点がある。そこで、本発明はかかる問題点を解消す
るためになされたものであり、鋳型寿命の長い金型鋳造
用鋳型を提供することを目的とする。(Problems to be Solved by the Invention) Cast iron mold casting involves pouring molten metal directly into a cast iron mold or a cast steel mold, resulting in mold distortion, initial cracking, crazing, and spalling due to thermal stress. Alternatively, mold damage such as melting damage or welding may occur, resulting in an extremely shortened mold life. Therefore, the present invention has been made to solve such problems, and an object of the present invention is to provide a mold for metal casting having a long mold life.
（課題を解決するための手段）
本発明の金型鋳造用鋳型は、キャビティを有する黒鉛製
内型と、該内型に係合する金屈製外型とからなり、該内
型は分割型又は一体型より形威されるものである。(Means for Solving the Problems) The mold for mold casting of the present invention consists of an inner mold made of graphite having a cavity, and an outer mold made of Kinkure that engages with the inner mold, and the inner mold is a split mold. Or, it is more powerful than an integrated type.
（作用）
熱伝導率の大きい内型と放熱自在な外型との組合せによ
って、注湯された鋳造物の冷却速度を高め、内部まで均
一な共晶状黒鉛を有する鋳造物が鋳造できる。(Function) By combining an inner mold with high thermal conductivity and an outer mold that can freely dissipate heat, the cooling rate of the poured casting can be increased, and it is possible to cast a casting having uniform eutectic graphite throughout the inside.
（実施例）
第１〜２図に本発明の第１実施例が示され、本鋳型は、
固定型１と可動型２とに分割形戒され、該両型１、２は
それぞれ金属製外型３と黒鉛製内型４とより構或されて
いる。黒鉛製内型４は、金属製外型３より熱伝導率が太
きく形成され、該内型４は取付部材５によって該外型３
に着脱自在に嵌装されている。該内型４は５分割され、
湯口６を形或する第１分割型７、湯道８を形或する第２
〜３分割型９、１ｏおよびキャビティエ１を形戊する第
４〜５分割型１２、ｌ３から構或され、キャビティ１１
は湯口６および湯道８に連通し、固定型」および可動型
２は該外型３に設けられたガイドピン１−４を介して型
合せされる。(Example) A first example of the present invention is shown in Figs. 1 and 2, and the present mold is
The mold is divided into a fixed mold 1 and a movable mold 2, and both molds 1 and 2 are composed of a metal outer mold 3 and a graphite inner mold 4, respectively. The inner mold 4 made of graphite is formed to have higher thermal conductivity than the outer mold 3 made of metal, and the inner mold 4 is connected to the outer mold 3 by the mounting member 5.
It is removably fitted into the The inner mold 4 is divided into 5 parts,
The first split mold 7 forms the sprue 6, and the second mold forms the runner 8.
It is composed of ~3 divided molds 9, 1o and 4th to 5th divided molds 12, 13 that form the cavity 1, and the cavity 11
communicates with the sprue 6 and the runner 8, and the fixed mold and the movable mold 2 are brought together via guide pins 1-4 provided on the outer mold 3.
次に作用について説明する。Next, the effect will be explained.
固定型１と可動型２とをガイドピン１４を介して型合せ
した後、湯口６から溶湯を注湯すると、溶湯が湯道８を
経てキャビティ１１に充満され、熱伝導率の大きい黒鉛
製内型４と放熱自在な金属製外型３との組合せによって
、注湯された錆造物の冷却速度を高めると共に，該両型
３、４も速かに冷却する。固定型１と可動型２とを離型
すると、内部まで均一な共晶状黒鉛を有するｔ４造物が
得られる。しかる後、酸化消耗した黒鉛製内型４の各分
割型７、９、１０、１．２．１３を適宜交換して繰り返
し鋳造を行なう。After the fixed mold 1 and the movable mold 2 are aligned via the guide pins 14, molten metal is poured from the sprue 6, and the molten metal passes through the runner 8 and fills the cavity 11, forming a graphite interior with high thermal conductivity. The combination of the mold 4 and the metal outer mold 3 that can freely dissipate heat increases the cooling rate of the poured rust structure, and also rapidly cools both the molds 3 and 4. When the fixed mold 1 and the movable mold 2 are released, a T4 structure having uniform eutectic graphite throughout is obtained. Thereafter, the divided molds 7, 9, 10, 1.2.13 of the graphite inner mold 4 which have been consumed by oxidation are replaced as appropriate, and casting is repeated.
第３図に第２実施例が示され、黒鉛製内型２４が一体型
から形威されている以外は前記実施例と同様に形或され
、前記実施例と同様の作用を奏する。A second embodiment is shown in FIG. 3, and has the same shape as the previous embodiment except that the graphite inner mold 24 is formed as an integral part, and has the same function as the previous embodiment.
（発明の効果）
本発明によれば，キャビティを有する黒鉛製内型と、該
内型に係合する金属製外型とより形成されるから、黒鉛
製内型および金属製外型は破損しにくく、しかも黒鉛製
内型が交換自在であるので、鋳型寿命が著しく長くなり
、製造コス１〜が低減し、生産性が増大する。(Effects of the Invention) According to the present invention, since the graphite inner mold has a cavity and the metal outer mold engages with the inner mold, the graphite inner mold and the metal outer mold are not damaged. Moreover, since the graphite inner mold is replaceable, the life of the mold is significantly extended, the manufacturing cost is reduced, and the productivity is increased.
第１図は本発明の第１実施例を示す鋳型の一側正面図、
第２図は第１図のｎ−ｎ断面図、第３図は第２実施例を
示す鋳型の一側正面図である。
３・・・金属製外型、４、２４・・・黒鉛製内型、７、
９，
］ Ｏ、
１２、
１３ ・ ・
・分割型、
エ １ ・ ・
・キャビティ。FIG. 1 is a front view of one side of a mold showing a first embodiment of the present invention;
FIG. 2 is a sectional view taken along line nn in FIG. 1, and FIG. 3 is a front view of one side of a mold showing the second embodiment. 3...Metal outer mold, 4, 24...Graphite inner mold, 7, 9,] O, 12, 13...Divided mold, E1...Cavity.
Claims (2)
ビティを有する黒鉛製内型と、該内型に係合する金属製
外型とからなる金型鋳造用鋳型。(1) A mold used for mold casting of cast iron, which consists of a graphite inner mold having a cavity and a metal outer mold that engages with the inner mold.
記載の金型鋳造用鋳型。(2) Claim 1 wherein the graphite inner mold is a split type or an integrated type.
The mold for mold casting described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19111989A JPH0357533A (en) | 1989-07-24 | 1989-07-24 | Mold for metallic mold casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19111989A JPH0357533A (en) | 1989-07-24 | 1989-07-24 | Mold for metallic mold casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0357533A true JPH0357533A (en) | 1991-03-12 |
Family
ID=16269183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19111989A Pending JPH0357533A (en) | 1989-07-24 | 1989-07-24 | Mold for metallic mold casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0357533A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144480A (en) * | 2005-11-29 | 2007-06-14 | Ngk Insulators Ltd | Casting method of metal mold for tire |
| KR20220165408A (en) * | 2021-06-08 | 2022-12-15 | 임종찬 | Ingot mold for manufacturing ingot, and method for manufacturing ingot using the same |
-
1989
- 1989-07-24 JP JP19111989A patent/JPH0357533A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144480A (en) * | 2005-11-29 | 2007-06-14 | Ngk Insulators Ltd | Casting method of metal mold for tire |
| KR20220165408A (en) * | 2021-06-08 | 2022-12-15 | 임종찬 | Ingot mold for manufacturing ingot, and method for manufacturing ingot using the same |
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