JPH0696180B2 - Mold forming method - Google Patents
Mold forming methodInfo
- Publication number
- JPH0696180B2 JPH0696180B2 JP32456487A JP32456487A JPH0696180B2 JP H0696180 B2 JPH0696180 B2 JP H0696180B2 JP 32456487 A JP32456487 A JP 32456487A JP 32456487 A JP32456487 A JP 32456487A JP H0696180 B2 JPH0696180 B2 JP H0696180B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- mold
- sand
- amine
- iron
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 150000001412 amines Chemical class 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 17
- 239000003110 molding sand Substances 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
Description
【発明の詳細な説明】 （発明の目的） 〔産業上の利用分野〕 この発明は、コールドボックス法に係る鋳型成形方法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a mold forming method according to the cold box method.
この種の鋳型成形方法は、模型をガス硬化性の硬化剤の
含有された鋳物砂で覆い、この鋳物砂にアミンガスを供
給して前記鋳物砂を硬化させ、鋳型を成形している。In this type of molding method, a model is covered with a molding sand containing a gas-curable curing agent, and an amine gas is supplied to the molding sand to cure the molding sand to mold a mold.
ところで、従来にあっては、前記アミンガスを供給する
にあたって、鋳物砂の表面に遮蔽部材を載置し、この遮
蔽部材にアミン溶液を滴下し、四方に拡散させていた
（特開昭57−75249号）。By the way, in the prior art, when supplying the amine gas, a shielding member was placed on the surface of the foundry sand, and the amine solution was dropped on the shielding member to diffuse in all directions (Japanese Patent Laid-Open No. 57-75249). issue).
しかしながら、従来にあっては遮蔽部材が鋳物砂の表面
に載置されていたため、かかる遮蔽部材の裏側はアミン
溶液が拡散しにくく、又、遮蔽部材から遠く離れた鋳枠
の内壁面近傍にもアミン溶液は拡散しにくく片寄りやす
い。この結果、多量のアミンを使用しなければならない
という不都合を有した。However, in the past, since the shielding member was placed on the surface of the foundry sand, the amine solution was less likely to diffuse on the back side of such a shielding member, and also near the inner wall surface of the casting frame far away from the shielding member. The amine solution does not easily diffuse and tends to be biased. As a result, there was a disadvantage that a large amount of amine had to be used.
（発明の構成） 〔問題点を解決するための手段〕 この発明は前記不都合を解消するためになされたもので
あり、その構成は、模型をガス硬化性の硬化剤の含有さ
れた鋳物砂で覆い、この鋳物砂にアミンガスを供給して
鋳型を成形する鋳型成形方法において、前記模型の外表
面に鋳物砂層を形成するとともにこの砂層の外側を鉄粒
で覆うことによって鉄粒層を形成し、この鉄粒層の鉄粒
相互の隙間を介して前記アミンガスを前記鋳物砂層の鋳
物砂に供給することを特徴とする鋳型成形方法である。(Structure of the Invention) [Means for Solving the Problems] The present invention has been made to solve the above-mentioned inconvenience, and the structure thereof is a molding sand containing a gas-curable curing agent. Cover, in the molding method of forming a mold by supplying an amine gas to the foundry sand, to form a foundry sand layer on the outer surface of the model and to form an iron particle layer by covering the outside of the sand layer with iron particles, The mold forming method is characterized in that the amine gas is supplied to the molding sand of the molding sand layer through the gaps between the iron particles of the iron particle layer.
この発明に係る鋳型成形方法上記のように構成されてい
るため、アミンガスが鉄粒層における鉄粒同志の隙間を
通過する際に分散されるものである。Since the mold forming method according to the present invention is configured as described above, the amine gas is dispersed when passing through the gap between the iron particles in the iron particle layer.
以下、第１図及び第２図に基づいてこの発明の実施例を
説明する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第１図において、１はプレート台、２はこのプレート台
１に固定された通気性模型である。３は鋳枠であり、前
記プレート台１に密着載置されている。この鋳枠３は前
記模型２を囲っている。４は鋳物砂であり、前記模型２
の表面を覆っている。この鋳物砂４には硬化性のガス硬
化剤が含有されている。５は鉄粒層であり、複数の鉄粒
を前記鋳物砂４の外側に配置した状態で鋳枠３一杯に詰
めることによって形成されている。この鉄粒層５は硬化
性ガスを全範囲に分散するためのものである。６は蓋体
であり、前記鋳枠３に載置されている。この蓋体６は鋳
枠３に対して密閉している。61はガス通路であり、前記
蓋体６の肉厚部に形成されている。このガス通路61には
バルブ（図示せず）を介してアミンガス（この発明の
「硬化性ガス」に相当する）が吹きこまれる。62,62,62
はガス岐路であり、前記蓋体６の肉厚部に形成されてい
る。このガス岐路62,62,62は前記ガス通路61と連通し、
前記鋳枠３内に開口している。このため、前記ガス通路
61を通過したアミンガスは、このガス岐路62,62,62を介
して前記鋳枠３内に噴出される。そして、噴出したアミ
ンガスは、第２図に示すように、鉄粒層５の鉄粒同志の
間を通過しながら（矢印参照）分散し、前記鋳物砂４に
達する。In FIG. 1, reference numeral 1 is a plate base, and 2 is a breathable model fixed to the plate base 1. A casting frame 3 is closely mounted on the plate base 1. The casting frame 3 surrounds the model 2. Reference numeral 4 is foundry sand, which is the model 2
Covering the surface of. The foundry sand 4 contains a curable gas curing agent. Reference numeral 5 denotes an iron grain layer, which is formed by packing a plurality of iron grains in the casting frame 3 in a state of being arranged outside the molding sand 4. The iron particle layer 5 is for dispersing the curable gas in the entire range. Reference numeral 6 denotes a lid, which is placed on the casting frame 3. The lid body 6 is sealed with respect to the casting frame 3. Reference numeral 61 denotes a gas passage, which is formed in the thick portion of the lid body 6. An amine gas (corresponding to the "curable gas" of the present invention) is blown into the gas passage 61 through a valve (not shown). 62,62,62
Is a gas branch and is formed in the thick portion of the lid 6. This gas branch 62, 62, 62 communicates with the gas passage 61,
It is opened in the casting frame 3. Therefore, the gas passage
The amine gas that has passed through 61 is jetted into the casting frame 3 through the gas branches 62, 62, 62. Then, the ejected amine gas is dispersed while passing between the iron grains of the iron grain layer 5 (see the arrow) as shown in FIG. 2, and reaches the casting sand 4.
一方、プレート台１において11はガス吸引路であり、そ
の肉厚部に形成されている。又、このガス吸引路11はガ
ス岐路12,12,…を介して前記鋳枠３内に開口している。
このガス吸引路11は鋳枠３内の気体、特に、鋳枠３内の
アミンガスを吸引し、鋳物砂４の硬化を補助する。な
お、このガス吸引路と前記アミンガスの供給は同時に行
われ、停止はアミンガスを先行して行われる。このよう
にして上型および下型を形成する。On the other hand, 11 in the plate base 1 is a gas suction passage, which is formed in the thick portion thereof. Further, the gas suction passage 11 opens into the casting frame 3 through the gas branch passages 12, 12, ....
The gas suction passage 11 sucks the gas in the casting frame 3, particularly the amine gas in the casting frame 3, and assists the hardening of the foundry sand 4. The gas suction path and the amine gas are simultaneously supplied, and the amine gas is stopped first. In this way, the upper mold and the lower mold are formed.
そして、鋳物砂４の硬化後、上型の蓋体６及び上型又は
下型のプレート台１を外す。次いで、蓋体６は固体した
ままで下型の鋳枠３を反転する。この下型の上に上型を
載置固定して鋳型が完成する。Then, after the molding sand 4 is hardened, the upper mold cover 6 and the upper or lower mold plate base 1 are removed. Next, the lower mold flask 3 is turned over while the lid 6 remains solid. The upper mold is placed and fixed on the lower mold to complete the mold.
この発明に係る鋳型成形方法は、 模型をガス硬化性の硬化剤の含有された鋳物砂で覆い、
この鋳物砂にアミンガスを供給して鋳型を成形する鋳型
成形方法において、前記模型の外表面に鋳物砂層を形成
するとともにこの砂層の外側を鉄粒で覆うことによって
鉄粒層を形成し、この鉄粒層の鉄粒相互の隙間を介して
前記アミンガスを前記鋳物砂層の鋳物砂に供給するた
め、 アミンガスが鉄粒層における鉄粒同志の隙間を通過する
際に分散されるものである。The mold forming method according to the present invention covers a model with a molding sand containing a gas-curable curing agent,
In the molding method of supplying a mold gas by supplying amine gas to the foundry sand, an iron particle layer is formed by forming a foundry sand layer on the outer surface of the model and covering the outside of the sand layer with iron particles. Since the amine gas is supplied to the foundry sand of the foundry sand layer through the interstices between the iron particles in the particle layer, the amine gas is dispersed when passing through the interstices between the iron particles in the iron particle layer.
よって、この鋳型成形方法を使用すれば、鋳物砂全体に
アミンガスが均一に供給され、この結果、強度の均一な
鋳型を成形しやすいものである。又、アミンガスが均一
に分散するため、アミンガスの使用量も少なくなり、こ
の結果、鋳型の製造コストが低額化する。Therefore, when this molding method is used, the amine gas is uniformly supplied to the entire molding sand, and as a result, it is easy to mold a mold having uniform strength. Further, since the amine gas is uniformly dispersed, the amount of the amine gas used is reduced, and as a result, the cost of manufacturing the mold is reduced.
また、付随効果として有害であるアミンガスの中和処理
設備が縮小できる。As a side effect, the facility for neutralizing harmful amine gas can be reduced.
図面はこの発明に鋳型成形方法の実施例を示すものであ
り、 第１図は鋳型成形装置の断面図、 第２図は第１図におけるII部拡大図である。 ２……模型 ４……鋳物砂 ５……鉄粒層The drawings show an embodiment of the casting method according to the present invention. FIG. 1 is a sectional view of the casting apparatus, and FIG. 2 is an enlarged view of a portion II in FIG. 2 ... Model 4 ... Foundry sand 5 ... Iron grain layer
Claims (1)
物砂で覆い、この鋳物砂にアミンガスを供給して鋳型を
成形する鋳型成形方法において、前記模型の外表面に鋳
物砂層を形成するとともにこの砂層の外側を鉄粒で覆う
ことによって鉄粒層を形成し、この鉄粒層の鉄粒相互の
隙間を介して前記アミンガスを前記鋳物砂層の鋳物砂に
供給することを特徴とする鋳型成形方法。1. A mold molding method in which a model is covered with a molding sand containing a gas-curable curing agent, and an amine gas is supplied to the molding sand to mold a mold, wherein a molding sand layer is formed on the outer surface of the model. And forming an iron particle layer by covering the outside of the sand layer with iron particles, and supplying the amine gas to the foundry sand of the foundry sand layer through the gaps between the iron particles of the iron particle layer. Molding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32456487A JPH0696180B2 (en) | 1987-12-21 | 1987-12-21 | Mold forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32456487A JPH0696180B2 (en) | 1987-12-21 | 1987-12-21 | Mold forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01166849A JPH01166849A (en) | 1989-06-30 |
| JPH0696180B2 true JPH0696180B2 (en) | 1994-11-30 |
Family
ID=18167220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32456487A Expired - Lifetime JPH0696180B2 (en) | 1987-12-21 | 1987-12-21 | Mold forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696180B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6894686B2 (en) | 2000-05-16 | 2005-05-17 | Nintendo Co., Ltd. | System and method for automatically editing captured images for inclusion into 3D video game play |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551502A (en) * | 2013-10-30 | 2014-02-05 | 贵州宏狮煤机制造有限公司 | Full container casting method of scrapper groove side steel |
| CN106563771B (en) * | 2016-10-31 | 2018-11-13 | 华东泰克西汽车铸造有限公司 | Engine cylinder body cold-box and casting method |
-
1987
- 1987-12-21 JP JP32456487A patent/JPH0696180B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6894686B2 (en) | 2000-05-16 | 2005-05-17 | Nintendo Co., Ltd. | System and method for automatically editing captured images for inclusion into 3D video game play |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01166849A (en) | 1989-06-30 |
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