JPS6141656B2 - - Google Patents
Info
- Publication number
- JPS6141656B2 JPS6141656B2 JP10132380A JP10132380A JPS6141656B2 JP S6141656 B2 JPS6141656 B2 JP S6141656B2 JP 10132380 A JP10132380 A JP 10132380A JP 10132380 A JP10132380 A JP 10132380A JP S6141656 B2 JPS6141656 B2 JP S6141656B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- coating
- molds
- weight
- binder
- 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
Links
- 239000011248 coating agent Substances 0.000 claims description 27
- 238000000576 coating method Methods 0.000 claims description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 238000005266 casting Methods 0.000 claims description 13
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000010410 layer Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 5
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 5
- 239000003085 diluting agent Substances 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000003232 water-soluble binding agent Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 229910001208 Crucible steel Inorganic materials 0.000 description 7
- 230000035699 permeability Effects 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 239000007849 furan resin Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- -1 and to this Substances 0.000 description 2
- 230000000573 anti-seizure effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
Description
本発明は焼着防止効果においてすぐれた鋳造用
塗型に関するものである。
鋳造用鋳型に対しては、従来から、溶融金属が
鋳型を形成する砂粒子の間隙中に浸入して型ばら
しの際に砂落ちが悪くなるのを防止すること、お
よび良好な鋳肌の鋳造金属を得ることを目的とし
て塗型が塗布される。従来の塗型では、鋳鋼を鋳
込む際には粘結剤としてフエノール樹脂やコロフ
オニウム（天然ロジン）が、またその際の溶剤と
してアルコールが多く使用されており、これらア
ルコール系塗型は鋳型表面に刷毛塗りやスプレー
塗布される。
これら従来の塗型には次のような欠点があつ
た。粘結剤として使用されるフエノール樹脂や
コロフオニウムは塗布厚さ1.0mm付近までとかな
り厚く塗布することができ、塗布後の塗型の常温
強度を確保する点では優れているが、これらの樹
脂は耐熱性が不十分であり、溶融金属、特に鋳鋼
を鋳込んだ際には燃焼するために塗型膜に亀裂が
生じ溶湯が鋳型中へと浸入しやすい。従来の塗
型は鋳型への浸透性が小さいため塗型による砂粒
子間隙の目つぶし効果が小さく、このためによ
つて塗型層を通過した溶湯は鋳型の砂粒子間隙に
容易に浸入する。このような理由により、従来の
塗型では特に鋳鋼に対しての焼着防止効果が不十
分である。
本発明は上記の欠点のない、特に鋳鋼による焼
着に対してその防止効果が著しい塗型を提供する
ことを目的とし、とりわけ近年、砂の再生、回収
性が優れているために広く導入されつつあるフラ
ン鋳型などの有機樹脂鋳型に適した鋳鋼用塗型を
提供することを目的とするものである。
本発明者等は、焼着、特に浸透性焼着を防止す
るには鋳型表面の砂粒子間隙を埋めることが最も
重要であると考え、浸透性の優れた焼結層を形成
しやすい塗型を下塗りとし、この下塗り塗型層が
注湯熱によつて焼結した層が、凝固した鋳物表面
から分離されやすいよう、また下塗り塗型の焼着
防止効果を更に発揮させるように、下塗り塗型の
上に上塗り塗型として熱硬化性エマルジヨンを主
粘結剤とした塗型を塗布し二重塗りとする本発明
に到達したものである。
本発明における下塗り塗型としては、耐熱性が
優れた高温強度の高いシリカ分を形成するエチ
ル・シリケート加水分解液を粘結剤として用い、
またこの下塗り塗型によつて鋳型の砂粒子間隙が
充填されやすいよう、即ち、塗型が鋳型表面から
２mm以上、浸透するように、塗型における基材
と、粘結剤を含む希釈剤との割合を基材50〜90重
量％、希釈剤50〜10重量％とするものである。こ
の下塗り塗型の浸透深さは、種々検討した結果、
最低２mm以上が必要と判断されたが、塗型の基材
が多くなるほど塗型の浸透深さは浅くなるので90
重量％までに抑える必要があり、一方、基材の割
合が低下すると浸透性は向上するが、塗布時の作
業性、特に刷毛塗り時の塗型の伸び性が低下する
ので基材の下限を50重量％とするものである。基
材としてはジルコン粉末、アルミナ（Al2O3）、
スピネル（MgO・Al2O3）、酸化クロム（Cr2O3）
などが用いられる。希釈剤中の粘結剤としては上
記の如くシリカ分を形成するエチル・シリケート
加水分解液を用い、また塗型の懸濁性を保持し、
沈降性を防止するためにコロフオニウム（天然ロ
ジン）を添加する。コロフオニウムはまた、塗膜
の常温強度の維持の役目も果たしている。エチル
シリケート加水分解のゲル化防止、塗型の沈降防
止および注湯時のガス欠陥の防止の観点から、シ
リカ分0.15〜0.75重量％、コロフオニウム0.5〜
2.5重量％で、シリカ分10％含有エチルシリケー
ト加水分解液：コロフオニウム＝３：１のものが
特によいことが判明した。溶剤としてはエチルア
ルコール、イソプロピルアルコール、ブタノール
等アルコール類を主溶剤として用い、これに助溶
剤として酢酸エチル、酢酸ブチル、アセトン、ト
ルエンなどを添加使用することができる。
上塗り塗型は注湯時に溶湯熱によつて焼結した
下塗り塗型が鋳物から分離し易いように下塗り塗
型に比較して鋳型表面に厚く塗布できる必要があ
る。このため粘結剤として熱硬化性樹脂エマルジ
ヨンなどの水溶性粘結剤を使用した。本発明で使
用するエマルジヨンの一般的組成は次の通りであ
る。
合成樹脂モノマー（フエノール樹脂、エポキシ樹
脂、ウレタン樹脂等） 30〜70重量％
界面活性剤（アニオン、カチオン、ノニオン等）
0.1〜 ５重量％
保護コロイド（ポリビニル・アルコール、メチル
セルロース等の水溶性高分子） 0.1〜 ５重量％
重合触媒 微量
溶剤（水） 残部
この配合物を容器中で撹拌しながら約50〜70℃
で重合し、合成樹脂エマルジヨンとする。また、
水溶性粘結剤として変性ポリアミド溶液等を併用
することもできる。
本発明の鋳型用塗型は、鉄系および非鉄系金属
を鋳造する際に発生しやすい浸透性焼着の防止に
有効であり、鋳型としてはベントナイトを粘結剤
とする生型、フエノール樹脂を粘結剤とするシエ
ル型、フエノール樹脂、ポリイソシアネート樹脂
を粘結剤とするコールド・ボツクス、その他リノ
キユア型、ベツプセツト型など有機樹脂を粘結剤
とした鋳型等種々のものが用いられるが、特に砂
の再生回収が容易なため近年、鋳鋼用鋳型として
広く導入されてきているフラン鋳型に適した鋳型
である。
添付の図面に、本発明の塗型を塗布した鋳型の
断面を示す。鋳型は砂粒子１で構成され、下塗り
塗型２は浸透性が優れているため、上塗り塗型３
層の４倍（２mm以上）程度、砂粒子間隙に浸入
し、砂粒子間隙を充填している。
例
フラン樹脂鋳型（珪砂100％に、フラン樹脂1.0
％、触媒としてパラトルエンスルホン酸をフラン
樹脂に対して40％添加）に、下塗り塗型として第
１表に示す例１、例２の塗型を浸透深さ各々約
3.1mm、4.5mmで塗布した。
The present invention relates to a coating mold for casting which is excellent in anti-seizure effects. Conventionally, for casting molds, it has been necessary to prevent molten metal from penetrating into the gaps between the sand particles that form the mold and worsen sand removal during mold disassembly, and to prevent casting with a good casting surface. A mold is applied for the purpose of obtaining metal. In conventional coating molds, when casting cast steel, phenolic resin or colophonium (natural rosin) is often used as a binder, and alcohol is often used as a solvent. Applied by brush or spray. These conventional coating molds had the following drawbacks. Phenol resins and colophonium used as binders can be applied quite thickly, up to a coating thickness of around 1.0 mm, and are excellent in ensuring the strength of the coated mold at room temperature after application, but these resins It has insufficient heat resistance, and when molten metal, especially cast steel, is cast, it burns, causing cracks in the coating film and allowing the molten metal to easily seep into the mold. Since the conventional coating mold has low permeability into the mold, the effect of closing the gaps between the sand particles by the coating mold is small, and therefore the molten metal that has passed through the coating layer easily penetrates into the gaps between the sand particles of the mold. For these reasons, conventional coated molds have insufficient anti-seizure effects, especially on cast steel. The object of the present invention is to provide a coating mold which does not have the above-mentioned drawbacks and which has a remarkable effect of preventing the burning caused by cast steel. The purpose of this invention is to provide a coating mold for cast steel that is suitable for organic resin molds such as furan molds. The present inventors believe that filling the gaps between sand particles on the surface of the mold is most important in order to prevent sintering, especially permeable sintering, and have developed a coating mold that facilitates the formation of a sintered layer with excellent permeability. The undercoat mold layer is used as an undercoat, and the undercoat mold layer is sintered by the heat of pouring the metal.The undercoat mold layer is sintered by the heat of pouring. The present invention has been achieved, in which a coating with thermosetting emulsion as the main binder is coated on the mold as an overcoating mold to achieve double coating. As the undercoating mold in the present invention, an ethyl silicate hydrolyzate which forms a silica component with excellent heat resistance and high temperature strength is used as a binder.
In addition, the base material in the coating mold and the diluent containing the binder are mixed so that the gaps between sand particles in the mold are easily filled with this undercoating mold, that is, the coating mold penetrates 2 mm or more from the mold surface. The proportions are 50 to 90% by weight of the base material and 50 to 10% by weight of the diluent. As a result of various studies, the penetration depth of this undercoat type was determined as follows:
It was determined that at least 2 mm or more is required, but the penetration depth of the coating mold becomes shallower as the number of base materials increases, so 90
On the other hand, if the proportion of the base material decreases, the permeability improves, but the workability during application, especially the spreadability of the coating mold when applying with a brush, decreases, so the lower limit of the base material must be set. The content shall be 50% by weight. The base materials include zircon powder, alumina (Al 2 O 3 ),
Spinel (MgO・Al 2 O 3 ), chromium oxide (Cr 2 O 3 )
etc. are used. As the binder in the diluent, an ethyl silicate hydrolyzate which forms a silica component is used as described above, and also maintains the suspendability of the coating mold.
Corophonium (natural rosin) is added to prevent sedimentation. Corophonium also plays a role in maintaining the cold strength of the coating. From the viewpoint of preventing gelation during ethyl silicate hydrolysis, prevention of sedimentation of coating molds, and prevention of gas defects during pouring, silica content is 0.15 to 0.75% by weight, and colophonium is 0.5 to 0.5%.
It has been found that an ethyl silicate hydrolyzate containing 2.5% by weight and 10% silica: colophonium in a ratio of 3:1 is particularly good. As the solvent, alcohols such as ethyl alcohol, isopropyl alcohol, and butanol are used as the main solvent, and to this, ethyl acetate, butyl acetate, acetone, toluene, etc. can be added as a co-solvent. The topcoat mold must be able to be applied thicker to the mold surface than the undercoat mold so that the undercoat mold sintered by the heat of the molten metal during pouring can be easily separated from the casting. For this reason, a water-soluble binder such as a thermosetting resin emulsion was used as the binder. The general composition of the emulsion used in the present invention is as follows. Synthetic resin monomer (phenol resin, epoxy resin, urethane resin, etc.) 30-70% by weight Surfactant (anion, cation, nonion, etc.)
0.1 to 5% by weight Protective colloid (water-soluble polymer such as polyvinyl alcohol, methyl cellulose) 0.1 to 5% by weight Polymerization catalyst Trace amount of solvent (water) Balance Heat this mixture to approximately 50 to 70℃ while stirring in a container.
Polymerize to form a synthetic resin emulsion. Also,
A modified polyamide solution or the like can also be used as a water-soluble binder. The coating mold for molds of the present invention is effective in preventing penetrating seizure that tends to occur when casting ferrous and non-ferrous metals. A variety of molds are used, including shell molds that use binders, cold boxes that use phenol resins and polyisocyanate resins as binders, molds that use organic resins as binders such as linokure molds, and bepsets. This mold is suitable for flan molds, which have been widely introduced as molds for casting steel in recent years because the sand can be easily recycled and recovered. The accompanying drawing shows a cross-section of a mold coated with the coating of the invention. The mold is composed of sand particles 1, and the undercoat mold 2 has excellent permeability, so the topcoat mold 3
It penetrates into the gaps between sand particles to a depth of about 4 times the layer (more than 2 mm) and fills the gaps between sand particles. Example: Furan resin mold (100% silica sand, 1.0 furan resin)
%, para-toluenesulfonic acid was added as a catalyst to the furan resin at a rate of 40%), and the coating molds of Examples 1 and 2 shown in Table 1 were applied as undercoat molds to a penetration depth of approximately
It was applied at 3.1mm and 4.5mm.
【表】
次いで上塗り塗型として第２表に示す塗型を塗
布して、鋳鋼（SC42）を1570℃および1560℃で
鋳込んだ。[Table] Next, the coating mold shown in Table 2 was applied as a top coating mold, and cast steel (SC42) was cast at 1570°C and 1560°C.
【表】
例１、２のものについて、鋳込んだ鋳鋼が凝固
した後、型ばらしを行なつたが、砂の型ばらしは
極めて良好であり、また鋳肌には浸透性焼着の発
生は見られなかつた。なお、大物鋳物を鋳込む場
合には、下塗り塗型の浸透が深い例２の方が例１
のものより望ましい。[Table] For Examples 1 and 2, the molds were broken down after the cast steel had solidified, and the sand pattern breakup was extremely good, and there was no occurrence of penetrating burning on the casting surface. I couldn't see it. Note that when casting large castings, Example 2 has deeper penetration of the undercoat mold than Example 1.
More desirable than that.
添付の図面は本発明塗型を鋳型に塗布したもの
の断面図である。
The accompanying drawing is a sectional view of a casting mold coated with the coating mold of the present invention.
Claims (1)
重量％とからなり、該希釈剤が粘結剤としてシリ
カ分を0.15〜0.75重量％析出するエチルシリケー
ト加水分解液、コロフオニウム0.5〜2.5重量％お
よび残部アルコールからなるアルコール系塗型
を、鋳型表面から２mm以上浸透させて形成した下
塗り塗型層、その上に第２層として熱硬化性樹脂
エマルジヨンを単独または他の水溶性粘結剤を加
えた水溶性塗型を塗布した上塗り塗型層、の２種
類の塗型層からなる鋳造用塗型。1 The first layer contains 90 to 50% by weight of the base material and 10 to 50% of the diluent.
An alcohol-based coating mold consisting of an ethyl silicate hydrolyzate in which the diluent acts as a binder and precipitates 0.15 to 0.75 weight % of silica, 0.5 to 2.5 weight % of colophonium, and the balance alcohol is applied from the surface of the mold. An undercoat layer formed by penetration of 2 mm or more, and a topcoat layer on which a water-soluble coating coated with a thermosetting resin emulsion alone or with other water-soluble binder is applied as a second layer. A casting mold consisting of two types of coating layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10132380A JPS5728651A (en) | 1980-07-25 | 1980-07-25 | Coating for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10132380A JPS5728651A (en) | 1980-07-25 | 1980-07-25 | Coating for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5728651A JPS5728651A (en) | 1982-02-16 |
| JPS6141656B2 true JPS6141656B2 (en) | 1986-09-17 |
Family
ID=14297600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10132380A Granted JPS5728651A (en) | 1980-07-25 | 1980-07-25 | Coating for casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5728651A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62296931A (en) * | 1986-06-18 | 1987-12-24 | Ryobi Ltd | Production of breakable core for high pressure casting |
| JP3491005B2 (en) * | 2001-01-10 | 2004-01-26 | 花王株式会社 | Molding agent slurry for mold |
| KR100630866B1 (en) * | 2004-12-09 | 2006-10-02 | 한국생산기술연구원 | Durable composite molding for metal casting |
-
1980
- 1980-07-25 JP JP10132380A patent/JPS5728651A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5728651A (en) | 1982-02-16 |
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