JP2006181579A - Composition of facing material - Google Patents

Composition of facing material Download PDF

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JP2006181579A
JP2006181579A JP2004375458A JP2004375458A JP2006181579A JP 2006181579 A JP2006181579 A JP 2006181579A JP 2004375458 A JP2004375458 A JP 2004375458A JP 2004375458 A JP2004375458 A JP 2004375458A JP 2006181579 A JP2006181579 A JP 2006181579A
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weight
composition
coating
casting
mold
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JP4455314B2 (en
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Masakatsu Okamoto
正勝 岡本
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Kao Corp
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Kao Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a composition of facing material, which composition is excellent in the seizure resistance and can produce a casting product having a beautiful cast surface. <P>SOLUTION: The composition of facing material contains at least one fire-resistant powder (A) selected from obsidian, pearlite, and pitchstone, and at least one fire-resistant powder (B) selected from mica, feldspar, and blast furnace slag. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、塗型剤組成物に関する。   The present invention relates to a coating composition.

鋳造用塗型剤は、溶融金属が接する鋳型表面に塗布又は噴霧（ぶっかけも含む）して、塗膜を塗装することにより、鋳型の表面を保護し、溶融金属と鋳型表面との化学反応や、鋳物の焼着欠陥の発生を防止するために用いられるものである。このような塗型剤は、一般に、耐火性粒子、粘結剤、焼結剤、分散媒（溶媒）等で構成されている。これらのうち、耐火性粒子は塗型基材であり、鋳物の焼着防止を主目的とし、ジルコン、シリカ、マグネシア、クロマイト、黒鉛等の粉末（骨材）が用いられる。   The casting mold agent is applied or sprayed (including bukkake) to the mold surface where the molten metal comes into contact, and the coating surface is applied to protect the mold surface, and the chemical reaction between the molten metal and the mold surface It is used to prevent the occurrence of casting defects in castings. Such a coating agent is generally composed of refractory particles, a binder, a sintering agent, a dispersion medium (solvent) and the like. Among these, the refractory particles are a coating base material, mainly for preventing casting seizure, and powders (aggregates) such as zircon, silica, magnesia, chromite, and graphite are used.

特許文献１には、塗型剤にひる石、黒曜石、真珠岩、天然雲母など加熱により結晶水が膨張する物質を含む塗型剤を圧力鋳造用中子に塗布することが開示されている。特許文献２には、真珠岩、黒曜岩を加熱粉砕して塗型剤に用いることが開示されている。また、消失模型用の塗型剤に関して、特許文献３には、示差熱分析による吸熱ピーク温度が特定範囲にある鉱石を塗型剤に用いることが開示されている。また、特許文献４には、カルシウムベントナイト及びウンモを消失模型鋳造用に適した塗型剤に用いることが開示されている。
特開平３−２２６３３４号 特開昭５２−１８４２５号 特開２００３−２９０８６９号 特開２００１−３３４３４６号 Patent Document 1 discloses that a coating agent containing a substance that expands crystal water by heating, such as vermiculite, obsidian, nacre, natural mica, etc., is applied to the core for pressure casting. Patent Document 2 discloses that pearlite and obsidian are heated and pulverized and used as a coating agent. As for the coating agent for the disappearance model, Patent Document 3 discloses that an ore having an endothermic peak temperature in a specific range by differential thermal analysis is used as the coating agent. Patent Document 4 discloses that calcium bentonite and unmo are used as a coating agent suitable for disappearance model casting.
JP-A-3-226334 JP 52-18425 A JP 2003-290869 A JP 2001-334346 A

しかしながら、鋳物品質の向上、特に平滑で高品質の鋳肌を得ることについては、更なる向上が望まれる。   However, further improvement is desired for improving casting quality, particularly for obtaining a smooth and high-quality casting surface.

また、特許文献１〜３で用いられている黒曜石、真珠岩及び松脂岩等の耐火性粒子は、焼着低減には有効であるが、溶湯の熱により膨張する性質があり、その結果、塗型を塗布した後のタレ筋部分が膨張する事によりそのタレ筋が膨らみ、鋳物表面での筋跡が深く残り平滑性が損なわれることがある。このため、焼着低減と平滑性の向上の両立は達成しがたい。また、特許文献４は、消失模型を用いた場合の焼着低減には有効であるが、他の鋳造法における平滑性についての言及はない。   Further, refractory particles such as obsidian, pearlite, and pinestone used in Patent Documents 1 to 3 are effective in reducing seizure, but have the property of expanding due to the heat of the molten metal. When the sagging streak portion after the mold is applied expands, the sagging streak swells, leaving traces on the casting surface deep, which may impair smoothness. For this reason, it is difficult to achieve both reduction in seizure and improvement in smoothness. Patent Document 4 is effective in reducing the seizure when the disappearance model is used, but there is no mention of smoothness in other casting methods.

本発明の課題は、耐焼着性に優れ、鋳肌が美麗な鋳物が得られる塗型剤組成物を提供することである。   The subject of this invention is providing the coating agent composition which is excellent in seizure resistance and can obtain a casting with a beautiful cast surface.

本発明は、黒曜石、真珠岩及び松脂岩から選ばれる少なくとも一種の耐火性粒子（Ａ）〔以下、（Ａ）成分という〕と、ウンモ、長石及び高炉スラグから選ばれる少なくとも一種の耐火性粒子（Ｂ）〔以下、（Ｂ）成分という〕とを含有する塗型剤組成物に関する。   The present invention provides at least one refractory particle (A) selected from obsidian, pearlite and pinestone (hereinafter referred to as “component (A)”), and at least one refractory particle selected from unmo, feldspar and blast furnace slag ( B) [Hereinafter referred to as component (B)].

また、本発明は、鋳型表面に、上記本発明の塗型剤組成物を塗布してなる鋳型、及び該鋳型を用いて製造された鋳物に関する。   The present invention also relates to a mold obtained by applying the above-mentioned coating agent composition of the present invention to the mold surface, and a casting manufactured using the mold.

本発明によれば、耐焼着性に優れ、鋳肌が美麗な鋳物が得られる塗型剤組成物が提供される。   ADVANTAGE OF THE INVENTION According to this invention, the coating agent composition which is excellent in seizure resistance and can obtain a casting with a beautiful cast surface is provided.

＜（Ａ）成分＞
本発明の（Ａ）成分は、黒曜石、真珠岩、松脂岩であり、いわゆるパーライトと呼ばれる鉱石の代表的組成は、ＳｉＯ2が７６重量％、Ａｌ2Ｏ3が１２重量％、Ｆｅ2Ｏ3が１重量％、ＣａＯが０．５重量％、Ｋ2Ｏ、Ｎａ2Ｏがそれぞれ４重量％である。（Ａ）成分としては、鋳肌が美麗な鋳物が得られるという観点から、黒曜石が好ましい。 <(A) component>
The component (A) of the present invention is obsidian, pearlite, and pine sebite, and the typical composition of ore called so-called perlite is 76% by weight of SiO 2 , 12% by weight of Al 2 O 3 , Fe 2 O 3 Is 1% by weight, CaO is 0.5% by weight, and K 2 O and Na 2 O are each 4% by weight. As the component (A), obsidian is preferable from the viewpoint of obtaining a casting with a beautiful casting surface.

本発明に用いられる（Ａ）成分は、平均粒径が１〜１００μｍ、更に１０〜６０μｍの粉末状のものを用いるのが好ましい。   The component (A) used in the present invention is preferably in the form of a powder having an average particle diameter of 1 to 100 μm, and more preferably 10 to 60 μm.

なお、本発明において、耐火性粒子の平均粒径は、レーザー回折の散乱式粒子径分布測定装置（堀場製作所製 ＬＡ−９２０型）にて測定した単一粒子径分布のメジアン径である。   In the present invention, the average particle diameter of the refractory particles is the median diameter of a single particle diameter distribution measured with a laser diffraction scattering type particle size distribution measuring apparatus (LA-920 model, manufactured by Horiba, Ltd.).

＜（Ｂ）成分＞
本発明の（Ｂ）成分のうち、ウンモは、ウンモ群とも呼ばれ、アルカリ金属を含むアルミノケイ酸塩である（化学大辞典１巻、昭和４３年７月１日、第６刷、共立出版株式会社）。ウンモには天然ウンモと人工ウンモがあり、天然ウンモとしては白ウンモ、金ウンモ、黒ウンモ等、好ましくは白ウンモが挙げられる。人工ウンモとしてはフッ素金ウンモ、フッ素四ケイ素ウンモ、テニオライト等のフッ素ウンモが挙げられる。 <(B) component>
Among the components (B) of the present invention, ummo is also called a ummo group and is an aluminosilicate containing an alkali metal (Chemical Dictionary 1, Vol. 1, July 1968, 6th edition, Kyoritsu Shuppan Co., Ltd.) Company). There are two types of eels: natural eels and artificial eels. Examples of natural eels include white eels, gold eels and black eels, preferably white eels. Examples of artificial rumbling include fluorine hummon such as fluor gold gilmo, fluorine tetrasilicon ummo, and teniolite.

また、（Ｂ）成分のうち、長石としては、曹長石、正長石、灰長石等が挙げられる。   Among the components (B), examples of feldspar include feldspar, orthofeldspar, anorthite and the like.

また、（Ｂ）成分のうち、高炉スラグとは、溶鉱炉で銑鉄を製造する際に得られる副産物であり、空中で徐冷した徐冷スラグと水中で急冷した急冷スラグ等が挙げられる。   In addition, among the components (B), blast furnace slag is a by-product obtained when producing pig iron in a blast furnace, and examples include slow-cooled slag that has been slowly cooled in the air and quenching slag that has been rapidly cooled in water.

本発明に用いられる（Ｂ）成分は、平均粒径が１〜１００μｍ、更に１０〜６０の粉末状のものを用いるのが好ましい。   As the component (B) used in the present invention, it is preferable to use a powdery one having an average particle diameter of 1 to 100 μm and further 10 to 60.

（Ｂ）成分としては、塗布作業における鋳型の隠蔽性の観点から、ウンモが好ましい。   As the component (B), ummo is preferred from the viewpoint of concealment of the mold in the coating operation.

本発明では、（Ａ）成分に（Ｂ）成分を併用することにより、タレ跡が残っていても（Ａ）成分の膨張が抑えられる結果、タレ跡の影響が出にくく、得られた鋳物は鋳肌の凹凸がなく、平滑性に優れたものとなると推察される。   In the present invention, by using the component (B) in combination with the component (A), the expansion of the component (A) is suppressed even if the trace remains. It is presumed that there will be no unevenness of the casting surface and it will be excellent in smoothness.

＜塗型剤組成物＞
本発明の塗型剤組成物は、上記（Ａ）成分、（Ｂ）成分と、この種の組成物に通常配合される、他の耐火性粒子、粘結剤等の成分と、分散媒とを含有する。また、組成物は、水系であってもアルコール系であってもよい。 <Coating agent composition>
The coating agent composition of the present invention comprises the above component (A), component (B), other components such as refractory particles and binder, which are usually blended in this type of composition, and a dispersion medium. Containing. The composition may be aqueous or alcoholic.

本発明の塗型剤組成物において、（Ａ）成分の含有量は、全固形分中、１０〜５０重量％が好ましく、１０〜４０重量％がより好ましく、１５〜３５重量％が更に好ましい。なお、本発明の塗型剤組成物における固形分には、（Ａ）成分、（Ｂ）成分、その他の耐火性粒子、ベントナイト等の焼結剤などがある。   In the coating composition of the present invention, the content of the component (A) is preferably 10 to 50% by weight, more preferably 10 to 40% by weight, and still more preferably 15 to 35% by weight in the total solid content. The solid content in the coating composition of the present invention includes (A) component, (B) component, other refractory particles, and a sintering agent such as bentonite.

また、本発明の塗型剤組成物において、（Ｂ）成分の含有量は、全固形分中、２〜４０重量％が好ましく、５〜３０重量％がより好ましく、１０〜２５重量％が更に好ましい。   In the coating composition of the present invention, the content of the component (B) is preferably 2 to 40% by weight, more preferably 5 to 30% by weight, and further 10 to 25% by weight in the total solid content. preferable.

本発明の塗型剤組成物においては、注湯時に発生する水分の影響を低減して美麗な鋳肌を得る観点から、全耐火性粒子中の（Ａ）成分の比率は、５０重量％以下、更に１０〜４０重量％であることが好ましい。   In the coating composition of the present invention, the ratio of the component (A) in all the refractory particles is 50% by weight or less from the viewpoint of obtaining a beautiful cast skin by reducing the influence of moisture generated during pouring. Further, it is preferably 10 to 40% by weight.

また、本発明の塗型剤組成物においては、耐焼着性の観点から、全耐火性粒子中の（Ｂ）成分の比率は、４０重量％以下、更に５〜３０重量％が好ましい。   In the coating composition of the present invention, from the viewpoint of seizure resistance, the ratio of the component (B) in all the refractory particles is preferably 40% by weight or less, and more preferably 5 to 30% by weight.

また、本発明の塗型剤組成物においては、耐焼着性の観点から、全耐火性粒子中の（Ａ）成分と（Ｂ）成分の合計の比率は、１２〜８５重量％、更に２５〜６５重量％が好ましい。   In the coating composition of the present invention, from the viewpoint of seizure resistance, the total ratio of the component (A) and the component (B) in all the refractory particles is 12 to 85% by weight, and further 25 to 25%. 65% by weight is preferred.

また、本発明の塗型剤組成物においては、耐焼着性と鋳肌の平滑性改善の観点から、（Ａ）成分と（Ｂ）成分の重量比は、（Ｂ）／（Ａ）＝５／９５〜７５／２５、更に１０／９０〜６２／３８が好ましい。   In the coating composition of the present invention, the weight ratio of the component (A) to the component (B) is (B) / (A) = 5 from the viewpoint of improving the seizure resistance and the smoothness of the casting surface. / 95 to 75/25, more preferably 10/90 to 62/38.

本発明の塗型剤組成物では、本発明の効果を阻害しない範囲で、（Ａ）成分、（Ｂ）成分以外の耐火性粒子を使用できる。他の耐火性粒子としては、従来から鋳造の目的に応じて各種のものが利用されており、例えば黒鉛、シリカ、ムライト、ジルコン黒鉛等が挙げられる。   In the coating agent composition of the present invention, refractory particles other than the component (A) and the component (B) can be used as long as the effects of the present invention are not impaired. As other refractory particles, various particles have been conventionally used depending on the purpose of casting, and examples thereof include graphite, silica, mullite, and zircon graphite.

本発明の塗型剤組成物に用いる分散媒は、水性、油性いずれでもよいが、浸透性の点より油性のものが好ましい。油性塗型剤組成物の場合は、メタノール、エタノール、イソプロピルアルコール等の低級アルコール類、キシレン、トルエン等の芳香族溶剤、ミネラルスピリット等の炭化水素系溶剤が使用できる。好ましくは低級アルコール類であり、特にメタノールが好ましい。芳香族溶剤及び炭化水素系溶剤は補助溶剤として使用してもよい。水性塗型剤組成物の場合は水が主分散媒となる。添加量は、油性の場合、低級アルコールであれば全耐火性粒子の合計１００重量部に対し、７０〜１１０重量部が好ましい。また、水性の場合、水は全耐火性粒子の合計１００重量部に対し、７０〜１３０重量部が好ましい。   The dispersion medium used in the coating agent composition of the present invention may be either aqueous or oily, but is preferably oily from the viewpoint of permeability. In the case of an oil-based coating composition, lower alcohols such as methanol, ethanol and isopropyl alcohol, aromatic solvents such as xylene and toluene, and hydrocarbon solvents such as mineral spirits can be used. Preferred are lower alcohols, and methanol is particularly preferred. Aromatic solvents and hydrocarbon solvents may be used as auxiliary solvents. In the case of an aqueous coating composition, water is the main dispersion medium. In the case of oily, the addition amount is preferably 70 to 110 parts by weight with respect to a total of 100 parts by weight of all refractory particles if it is a lower alcohol. Moreover, in the case of aqueous | water-based, 70-130 weight part of water is preferable with respect to 100 weight part of total of all the refractory particles.

また、本発明の塗型剤組成物には、通常使用されるような粘結剤や焼結剤を配合できる。例えば、常温で強い塗型膜を形成できるフェノール、ロジン、石油樹脂のような有機粘結剤や、ケイ酸ソーダ、リン酸アルミなどの無機粘結剤がある。条件によりこれらのものを併用してもよい。粘結剤の添加量は、全耐火性粒子の合計１００重量部に対し、０．５〜２重量部が好ましい。   Moreover, a binder and a sintering agent which are usually used can be blended in the coating composition of the present invention. For example, there are organic binders such as phenol, rosin and petroleum resin that can form a strong coating film at room temperature, and inorganic binders such as sodium silicate and aluminum phosphate. These may be used in combination depending on conditions. The addition amount of the binder is preferably 0.5 to 2 parts by weight with respect to 100 parts by weight of the total refractory particles.

また、焼結剤としては、ナトリウムベントナイト、カルシウムベントナイト等のベントナイト、木節粘度等の粘土類、エチルシリケート、コロイダルシリカが挙げられる。焼結剤の添加量は、全耐火性粒子の合計１００重量部に対し、３〜１０重量部が好ましい。   Examples of the sintering agent include bentonites such as sodium bentonite and calcium bentonite, clays such as knot viscosity, ethyl silicate, and colloidal silica. The addition amount of the sintering agent is preferably 3 to 10 parts by weight with respect to a total of 100 parts by weight of all refractory particles.

その他に、本発明の塗型剤組成物に配合できる成分として、界面活性剤、分散剤、チキソトロピー性付与剤等が挙げられる。   In addition, surfactants, dispersants, thixotropic agents, and the like are listed as components that can be blended in the coating composition of the present invention.

本発明の塗型剤組成物は、一般的な塗型剤と同様に使用できるが、特に砂型用の塗型剤組成物として好適に用いることができる。   Although the coating agent composition of the present invention can be used in the same manner as a general coating agent, it can be suitably used particularly as a sanding coating composition.

本発明の塗型剤組成物を鋳型に塗布する方法は、流し塗り（ブッカケ法）、浸漬する（ドブ漬け法）、刷毛塗り、スプレー塗布等の従来知られている方法の何れでも良いが、流し塗り法が好ましい。また鋳型に用いる鋳物砂としては、石英質を主成分とする珪砂の他、ジルコン砂、クロマイト砂、合成ムライト砂等の新砂又は再生砂が使用される。   The method of applying the coating composition of the present invention to the mold may be any of the conventionally known methods such as flow coating (bukkake method), dipping (dipping method), brush coating, spray coating, etc. A flow coating method is preferred. Further, as the foundry sand used for the casting mold, new sand or reclaimed sand such as zircon sand, chromite sand, synthetic mullite sand, etc. is used in addition to quartz sand mainly composed of quartz.

本発明の鋳型を用いて製造される鋳物としては、鋳肌が美麗な鋳物が得られるため、複雑な構造や、鋳肌表面の美しさが要求されるものに好適である。具体的な鋳物の例としては、建設機械の油圧バルブ、モーター、金型、エンジンフレーム、工作機械、建築部材等に用いられる、部材、部品等が挙げられる。 As a casting manufactured using the mold of the present invention, a casting having a beautiful casting surface is obtained, and therefore, it is suitable for a casting that requires a complicated structure and a beautiful casting surface. Specific examples of castings include members, parts, and the like used for hydraulic valves, motors, molds, engine frames, machine tools, building members, and the like of construction machines.

（１）変形率
フリーマントル珪砂（５号）１００重量部に対して、有機スルホン酸硬化剤（花王クエーカー（株）製ＴＫ−３）を０．２重量部添加混練した後に、フラン樹脂（花王クエーカー（株）製３４０Ｂ）を０．８重量部混合した。これを用い深さ３０ｍｍ、縦３００ｍｍ、横３００ｍｍの直方体の鋳型を作製した。 (1) Deformation rate After adding and kneading 0.2 parts by weight of an organic sulfonic acid curing agent (TK-3 manufactured by Kao Quaker Co., Ltd.) to 100 parts by weight of free mantle silica sand (No. 5), furan resin (Kao) 0.8 part by weight of QUAKER Co., Ltd. (340B) was mixed. Using this, a rectangular parallelepiped mold having a depth of 30 mm, a length of 300 mm, and a width of 300 mm was produced.

２４時間放置後、鋳型の底面に、切り欠き部（幅５ｍｍ×長さ１００ｍｍ×厚み１ｍｍ）を有するプレート（厚み１ｍｍ）を固定して、表１に示す耐火性粒子を含有する以下の組成の塗型剤組成物を、該プレートの切り欠き部に流し込み、一定の膜厚の塗膜（タレ筋のモデル）を作製する。充分乾燥後、塗膜の３箇所を任意に選定し、ノギスでそれぞれの厚みを測定する。３箇所の測定結果の平均値をタレ筋の平均厚みＡとする。   After standing for 24 hours, a plate (thickness 1 mm) having a notch (width 5 mm × length 100 mm × thickness 1 mm) is fixed to the bottom of the mold, and the composition having the following composition containing the refractory particles shown in Table 1 is used. The coating agent composition is poured into the notch of the plate to produce a coating film having a constant film thickness (a sagging muscle model). After drying sufficiently, three places on the coating film are arbitrarily selected, and each thickness is measured with a caliper. Let the average value of the measurement result of three places be the average thickness A of a sagging muscle.

上記塗膜が形成された鋳型に上型を被せた後、ＦＣ−２５０の熔湯を１４００℃で注湯し、２４時間経過後、フラン鋳型をばらし、ショットブラスト処理後、鋳物表面に転写された塗膜の凹部について、平均厚みＡを測定した部分に対応する３箇所の深さを測定し、その平均値を平均深さＢとする。（Ｂ／Ａ）×１００を変形率（％）とした。この値が大きくなるほど鋳物表面の凹部が深くなり品質の低下を招くことを意味する。結果を表１に示す。   After the upper mold is placed on the mold on which the coating film is formed, the FC-250 molten metal is poured at 1400 ° C., and after 24 hours, the furan mold is released, shot blasted, and transferred to the casting surface. About the recessed part of the coating film, the depth of three places corresponding to the part which measured average thickness A is measured, and let the average value be the average depth B. (B / A) × 100 was defined as the deformation rate (%). It means that the larger the value is, the deeper the concave portion of the casting surface becomes, and the lower the quality. The results are shown in Table 1.

なお、この試験で用いた塗型剤組成物の組成は、耐火性粒子１００重量部、水１００重量部、ナトリウムベントナイト５重量部、デキストリン１重量部、防腐剤０．１重量部である。   The composition of the coating composition used in this test is 100 parts by weight of refractory particles, 100 parts by weight of water, 5 parts by weight of sodium bentonite, 1 part by weight of dextrin, and 0.1 parts by weight of preservative.

（２）焼着率
再生珪砂からなる直径５０ｍｍ×高さ１００ｍｍの円柱状の中子に塗型剤組成物（上記（１）と同じものを使用した）を塗布した後、鋳物形状が直径３５０ｍｍ×高さ４００ｍｍとなる鋳型に中子８個を同一円周上（直径２５０ｍｍ）に均等に配置する。この鋳型に、溶湯（材質ＦＣ−２５０）を１４２０℃で注湯し、バラシ後、中子部分の焼着した容積を測定し、以下の式により焼着率を算出する。焼着率が大きいほど焼着が多く発生し品質の低下を招くことを意味する。結果を表１に示す。
焼着率（％）＝（中子部の焼着した容積／中子の全容積）×１００ (2) Scoring rate After coating the coating composition (using the same as (1) above) on a cylindrical core of 50 mm diameter x 100 mm height made of recycled silica sand, the casting shape has a diameter of 350 mm. X Eight cores are equally arranged on the same circumference (diameter 250 mm) in a mold having a height of 400 mm. Molten metal (material FC-250) is poured into this mold at 1420 ° C., and after the dispersion, the burned volume of the core portion is measured, and the burning rate is calculated by the following equation. It means that the larger the rate of seizure, the more seizure occurs and the quality deteriorates. The results are shown in Table 1.
Rate of seizure (%) = (Volume of core part sewn / total volume of core) × 100

Figure 2006181579
Figure 2006181579

Claims (5)

黒曜石、真珠岩及び松脂岩から選ばれる少なくとも一種の耐火性粒子（Ａ）と、ウンモ、長石及び高炉スラグから選ばれる少なくとも一種の耐火性粒子（Ｂ）とを含有する塗型剤組成物。 A coating composition comprising at least one refractory particle (A) selected from obsidian, pearlite, and pinestone, and at least one refractory particle (B) selected from unmo, feldspar, and blast furnace slag. 耐火性粒子（Ａ）と耐火性粒子（Ｂ）との重量比が、（Ｂ）／（Ａ）＝５／９５〜７５／２５である請求項１記載の塗型剤組成物。 The coating composition according to claim 1, wherein the weight ratio of the refractory particles (A) to the refractory particles (B) is (B) / (A) = 5/95 to 75/25. 砂型用である請求項１又は２記載の塗型剤組成物。 The coating composition according to claim 1 or 2, which is used for sand molds. 鋳型表面に、請求項１〜３の何れか１項記載の塗型剤組成物を塗布してなる鋳型。 The casting_mold | template formed by apply | coating the coating agent composition in any one of Claims 1-3 to the casting_mold | template surface. 請求項４記載の鋳型を用いて製造された鋳物。 A casting manufactured using the mold according to claim 4.
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JP2009039767A (en) * 2007-08-10 2009-02-26 Kao Corp Method for making casting mold
JP2009039729A (en) * 2007-08-07 2009-02-26 Kao Corp Alcohol-based coating agent composition for evaporative pattern
JP2010142867A (en) * 2008-12-22 2010-07-01 Kao Corp Coating agent composition for lost foam
CN103056288A (en) * 2013-01-25 2013-04-24 马鞍山市华达冶金机械有限公司 Lost foam casting paint for chromium-containing cast iron and preparation method thereof
JP2015139806A (en) * 2014-01-29 2015-08-03 品川リフラクトリーズ株式会社 Upper nozzle of continuous casting apparatus and entrance suppressing method
JP2016120517A (en) * 2014-12-25 2016-07-07 花王株式会社 Coating agent composition for lost foam pattern

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009039729A (en) * 2007-08-07 2009-02-26 Kao Corp Alcohol-based coating agent composition for evaporative pattern
JP2009039767A (en) * 2007-08-10 2009-02-26 Kao Corp Method for making casting mold
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CN103056288A (en) * 2013-01-25 2013-04-24 马鞍山市华达冶金机械有限公司 Lost foam casting paint for chromium-containing cast iron and preparation method thereof
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JP2015139806A (en) * 2014-01-29 2015-08-03 品川リフラクトリーズ株式会社 Upper nozzle of continuous casting apparatus and entrance suppressing method
JP2016120517A (en) * 2014-12-25 2016-07-07 花王株式会社 Coating agent composition for lost foam pattern

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