JPH01192443A - Method for coating mold - Google Patents
Method for coating moldInfo
- Publication number
- JPH01192443A JPH01192443A JP1757888A JP1757888A JPH01192443A JP H01192443 A JPH01192443 A JP H01192443A JP 1757888 A JP1757888 A JP 1757888A JP 1757888 A JP1757888 A JP 1757888A JP H01192443 A JPH01192443 A JP H01192443A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- coating
- coating material
- main body
- auxiliary
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 57
- 239000011248 coating agent Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 76
- 238000005266 casting Methods 0.000 abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 239000002245 particle Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 9
- 239000004576 sand Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000003110 molding sand Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001164374 Calyx Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 101100123655 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) alv-1 gene Proteins 0.000 description 1
- 229910021536 Zeolite Inorganic materials 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
- 239000011230 binding agent Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- -1 zirconside Chemical compound 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は金型鋳造用鋳型の装造時に鋳物の精度および外
観を良好にするために行う鋳型の被覆方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of coating a mold for improving the precision and appearance of the casting when the mold is installed.
（従来の技術）
金型鋳造用鋳型、たとえば砂型では通気性および強度上
の理由から、砂型を構成する砂の粒子は比較的粗いもの
を使用している。このため、鋳造時には第５図に示すよ
うに、溶湯３１が鋳型３２の内壁すなわち鋳型砂３３の
粒子間に侵入して、３４に示すｒめざし」と呼ばれるも
のが生じる。上記めざし３４によって鋳物の型離れがし
にくくなり、さらに鋳型砂の粒子の粗さも手伝い鋳肌が
荒れることになる。したがって、良品質のきめが細かい
表面を有する鋳物を得られない。(Prior Art) In molds for metal mold casting, such as sand molds, relatively coarse sand particles are used to form the sand mold for reasons of air permeability and strength. Therefore, during casting, as shown in FIG. 5, the molten metal 31 penetrates into the inner wall of the mold 32, that is, between the particles of the molding sand 33, and what is called "r aim" shown at 34 occurs. The aim 34 makes it difficult for the casting to separate from the mold, and the roughness of the particles of the molding sand also causes the casting surface to become rough. Therefore, a casting with a fine-grained surface of good quality cannot be obtained.
そこで、きめの細かい鋳肌の製品を得るために、第６図
に示す鋳型３２の表面に、粉状の含水性物質または微粒
な砂を被覆して、めざし３４の発生を防止している（特
願昭６２−２２２６４６号公報参照）。この粉状の含水
性物質は被覆材３５として直接、また微粒な砂は水、ア
ルコール、バインダなどとともにスラリ状の被覆材３５
に加工したのち、刷毛、スプレー、浸漬などの手段によ
って鋳型３２の表面に被覆されていた。Therefore, in order to obtain a product with a fine-grained casting surface, the surface of the mold 32 shown in FIG. (See Japanese Patent Application No. 62-222646). This powdery water-containing substance is used directly as a coating material 35, and the fine sand is used as a slurry coating material 35 together with water, alcohol, binder, etc.
After processing, the surface of the mold 32 was coated by means such as brushing, spraying, and dipping.
しかしながら、前記被覆材には水分が含まれているため
に鋳型の乾燥作業が必要てあり、この乾燥作業中に前記
被覆材に割れやブリスタなどが生じ、前記被覆材が鋳型
表面から剥離し易くなる。また、前記乾燥作業が充分に
行われない場合には、当該鋳型を使用した鋳造作業中に
前記被覆材に含まれていた水分か気化して気泡になり、
鋳物（製品）の表面に影響をおよぼす。However, since the coating material contains moisture, it is necessary to dry the mold, and during this drying process, cracks or blisters may occur in the coating material, causing the coating material to easily peel off from the mold surface. Become. Furthermore, if the drying work is not performed sufficiently, the moisture contained in the covering material evaporates and becomes bubbles during the casting work using the mold.
Affects the surface of the casting (product).
したかって、良好な品質の製品か得られない。同様に、
被覆材が吸湿性の大きい材質である場合、前記乾燥作業
に多くの時間を要し、作業性および生産性の劣化とコス
ト上昇とを招くという問題があった。さらに、被覆材か
表面張力によって鋳型のエツジ部付近で盛り上がるため
タレ３６を生じ、被覆材の厚さか均等になりにくい。こ
れにより、鋳型精度に影響して製品の寸法精度が劣化す
る。However, you can't get a good quality product. Similarly,
When the covering material is made of a highly hygroscopic material, there is a problem in that the drying operation takes a long time, leading to deterioration in workability and productivity and increase in cost. Furthermore, the coating material bulges near the edges of the mold due to surface tension, causing sagging 36, making it difficult to make the thickness of the coating material uniform. This affects the precision of the mold and deteriorates the dimensional precision of the product.
このため、粉末状の被覆材の流動層中に鋳型を配置した
のち、当該鋳型を前記流動層の中を上下動させることに
よって、第２図に示すように被覆材を鋳型に被覆する方
法が提案された（特願昭６２−２３３５７５号公報参照
）、これにより、鋳型の乾燥作業が不要になった。For this reason, there is a method of coating the mold with the coating material as shown in Figure 2 by placing the mold in a fluidized bed of powdered coating material and then moving the mold up and down in the fluidized bed. This method has been proposed (see Japanese Patent Application No. 62-233575), which eliminates the need for drying the mold.
（発明か解決しようとする課題）
しかしながら、特願昭６２−２：ｌ：１５７５号公報に
開・示された技術は、被覆材か鋳型を構成する鋳型砂の
間隙深部まで充分到達しないので、きめの細かい鋳型表
面を形成することができず、また鋳型表面に付着した被
覆材が飛散し易い。このため、被覆材の厚さか均等にな
らないので鋳型精度が劣化するとともに、きめの細かい
鋳肌の鋳物を得ることができなかった。(Problems to be Solved by the Invention) However, the technique disclosed in Japanese Patent Application No. 1575 does not sufficiently reach the deep pores of the coating material or the molding sand constituting the mold. It is not possible to form a fine-grained mold surface, and the coating material adhering to the mold surface is likely to scatter. As a result, the thickness of the covering material is not uniform, which deteriorates the accuracy of the mold and makes it impossible to obtain a casting with a finely textured surface.
そこて、本発明は乾燥作業が不要であり、良好な製品を
得るための鋳型の被覆方法を提供することを目的とする
。Therefore, an object of the present invention is to provide a mold coating method that does not require drying work and can obtain a good product.
（課題を解決するための手段）
本発明は上記目的を達成するために、粉末状の被覆材ｌ
Ｏの流動層１２中に鋳型８を配置し、鋳型８の表面に摺
接自在な毛状材１３を有する補助材１１を摺接させて被
覆材１０を鋳型８に被覆することを特徴とするものであ
る。(Means for Solving the Problem) In order to achieve the above object, the present invention provides a powder coating material l.
A mold 8 is placed in a fluidized bed 12 of O, and an auxiliary material 11 having a slidable hair-like material 13 is brought into sliding contact with the surface of the mold 8 to cover the mold 8 with a coating material 10. It is something.
（作用）
本発明は上記のように構成したので、流動層１２中の被
覆材１０を補助材１１の毛状材１３によって鋳型８の表
面に摺接させ、鋳型８表面の粒子間深部まで被覆材１０
を充填させる。さらに、被覆材１０には水分が混合また
は含有していないため、乾燥作業は不要である。(Function) Since the present invention is configured as described above, the coating material 10 in the fluidized bed 12 is brought into sliding contact with the surface of the mold 8 by the hair-like material 13 of the auxiliary material 11, and the surface of the mold 8 is coated deep between particles. Material 10
Fill it with. Furthermore, since the coating material 10 does not contain or contain moisture, drying is not necessary.
（実施例）
以下に、本発明の一実施例を図面に基いて詳細に説明す
る。(Example) Below, one example of the present invention will be described in detail based on the drawings.
第１図において、ｌは本発明の方法を実施するための鋳
型の被覆装置である。本装置ｌは筒状の本体２と、本体
２を取付けるための基台３と１本体２と基台３との間に
配置した多孔板４とを主構成とし、本体２は多孔板４と
ともに基台３にボルト固定しである。In FIG. 1, l is a mold coating device for carrying out the method of the invention. This device 1 mainly includes a cylindrical main body 2, a base 3 for attaching the main body 2, and a perforated plate 4 disposed between the main body 2 and the base 3. It is bolted to the base 3.
多孔板４には設置部材９が設けてあり、設置部材９は図
示を省略した固定治具によって、鋳型１１を本体２の内
側に設置する。The perforated plate 4 is provided with an installation member 9, and the installation member 9 installs the mold 11 inside the main body 2 using a fixing jig (not shown).
基台３は多孔板４とともに内側に空間を形成し、この空
間と本体２内部とは、多孔板４に複数穿設された細孔６
によって連通ずる。また、基台３の側壁には貫通孔５が
設けてあり、貫通孔５には空気などからなる流動ガスを
基台３内部に流入させるノズル７が嵌挿しである。The base 3 forms a space inside together with the perforated plate 4, and this space and the inside of the main body 2 are connected to each other by a plurality of pores 6 formed in the perforated plate 4.
It is communicated by. Further, a through hole 5 is provided in the side wall of the base 3, and a nozzle 7 is inserted into the through hole 5 to cause a flowing gas such as air to flow into the inside of the base 3.
本体２内部には円筒形状をなす補助材８か配設してあり
、補助材８は図示を省略した駆動装置によって回転軸文
を中心に回転駆動されながら、上下動など所定の方向に
移動される。また、補助材８の内壁には毛状材１３が植
立して、ブラシを形成し、毛状材１３は前記駆動装置に
よって設置部材９に固定された鋳型１１の表面に摺接す
る。また、この毛状材１３は鋳型１１表面にキズなつけ
ないように柔らかく、かつ鋳型１１に被覆材１０をこす
りつけて鋳型１１表面の鋳型砂の粒子間深部に押込みう
る弾力を備えたものである。An auxiliary member 8 having a cylindrical shape is disposed inside the main body 2, and the auxiliary member 8 is moved in a predetermined direction such as vertically while being driven to rotate around a rotation axis by a drive device (not shown). Ru. Further, a hair-like material 13 is planted on the inner wall of the auxiliary member 8 to form a brush, and the hair-like material 13 comes into sliding contact with the surface of the mold 11 fixed to the installation member 9 by the driving device. Further, the hair-like material 13 is soft so as not to scratch the surface of the mold 11, and has elasticity that allows the covering material 10 to be rubbed against the mold 11 and pushed deep between particles of molding sand on the surface of the mold 11. .
被覆材１０は鋳型１１表面の粒子間または、くぼみに入
り込むように、２００ｇｍ以下の粒子径を有する粉末状
または顆粒状のもので、本体２の内部に備えられである
。被覆材１０はきめの細かい鋳肌の製品を得るためのも
ので、粘土鉱物、天然鉱物１人造鉱物または活性炭を使
用する。前記粘土鉱物としてセビオライト、パリゴルス
カイト、珪藻土、ゼオライト、バーミキュライトなど、
天然鉱物として珪砂、クロマイトサンド、ジルコンサイ
ド、シリカフラワーなど、人造鉱物としてアルミナ、合
成ムライト、溶融シリカなどがある。なお、被覆材１０
は上記の各種素材のうち１種または複数種使用してもよ
い。被覆材１０はノズル７から基台３の内部に導かれ、
細孔６から本体２の内部に流入する前記流動ガスによっ
て流動させられ、本体２の内部に被覆材１０と前記流動
ガスとで流動層１２を形成する。The coating material 10 is in the form of powder or granules having a particle size of 200 gm or less, and is provided inside the main body 2 so as to fit between the particles on the surface of the mold 11 or into the depressions. The coating material 10 is for obtaining a product with a fine-grained casting surface, and uses clay minerals, natural minerals, artificial minerals, or activated carbon. The clay minerals include seviolite, palygorskite, diatomaceous earth, zeolite, vermiculite, etc.
Natural minerals include silica sand, chromite sand, zirconside, and silica flour, while artificial minerals include alumina, synthetic mullite, and fused silica. In addition, the covering material 10
may use one or more of the above-mentioned materials. The coating material 10 is guided into the inside of the base 3 from the nozzle 7,
The coating material 10 is fluidized by the fluidizing gas flowing into the main body 2 through the pores 6, and a fluidized bed 12 is formed inside the main body 2 by the coating material 10 and the fluidizing gas.
つぎに、上記構成に係る装置を使用し、本発明の詳細な
説明する。Next, the present invention will be explained in detail using the apparatus having the above configuration.
まず、設置部材９に鋳型１１を固定するとともに、補助
材８を鋳型１１に被覆させたのち、ノズル７から前記流
動ガスを導入する。これにより、前記流動ガスが細孔６
から本体２内部に導かれ、本体２内部に流動層ＩＺを形
成する。この際、被覆材ＩＯが流動層ｌｚ中の気体に含
まれた水分を吸収しないように、乾燥した空気、熱風な
どを流動ガスに使用してもよい。First, the mold 11 is fixed to the installation member 9 and the mold 11 is covered with the auxiliary material 8, and then the fluidizing gas is introduced from the nozzle 7. This causes the flowing gas to flow through the pores 6.
The liquid is introduced into the main body 2 to form a fluidized bed IZ inside the main body 2. At this time, dry air, hot air, or the like may be used as the fluidizing gas so that the coating material IO does not absorb moisture contained in the gas in the fluidized bed lz.
つぎに、前記駆動装置を操作すると補助材８が回転軸文
を中心に回転し、毛状材１３が鋳型１１の表面に摺接す
る。このため、鋳型１１表面の粒子間には流動層１２中
の被覆材１０がこすりつけられ、被覆材１０の被覆作業
が開始される（第２図参照）。Next, when the drive device is operated, the auxiliary material 8 rotates around the rotation axis, and the hair-like material 13 comes into sliding contact with the surface of the mold 11. Therefore, the coating material 10 in the fluidized bed 12 is rubbed between the particles on the surface of the mold 11, and the coating operation with the coating material 10 is started (see FIG. 2).
つづいて、補助材８は前記駆動装置によつて回転軸文を
中心に回転しながら所定方向に往復移動される。これに
より、流動層ｌｚ中の被覆材ｌＯは鋳型１１表面の粒子
間および間隙の深部に押込め充填されるので、流動層１
２中の被覆材ＩＯは鋳型１１の表面全体を均一に被覆す
る。（第３図および第４図参照）。Subsequently, the auxiliary member 8 is reciprocated in a predetermined direction while rotating about the rotation axis by the drive device. As a result, the coating material lO in the fluidized bed lz is pushed and filled deep into the interparticles and gaps on the surface of the mold 11.
The coating material IO in 2 uniformly covers the entire surface of the mold 11. (See Figures 3 and 4).
この被覆作業が終了したのち、設置部材９から鋳型１１
を外し、次工程に当該鋳型１１を搬送する。なお、当該
鋳型１１には乾燥作業を施さない。After this coating work is completed, from the installation member 9 to the mold 11
is removed, and the mold 11 is transported to the next process. Note that the mold 11 is not subjected to drying work.
つぎに、上記方法によって鋳型１１に被覆材ＩＯを被覆
した具体例を以下に説明する。Next, a specific example in which the mold 11 is coated with the coating material IO by the above method will be described below.
まず、鋳型１１としては、樹脂被覆鋳物砂（珪砂１００
重量部、フェノール樹脂２重量部、粒６号）を使用して
、上部外径７３ｍｍ、下部外径８０ｍ園、高さ１１０ｍ
■、厚さ１０■■、の中空円筒体を作成し、他方、被覆
材ｌＯとしては粒子径５０７ｚｍ以下のセとオライドを
使用した。First, as the mold 11, resin-coated molding sand (silica sand 100
Parts by weight, 2 parts by weight of phenolic resin, No. 6 particles) were used to form a mold with an outer diameter of 73 mm for the upper part, an outer diameter of 80 m for the lower part, and a height of 110 m.
A hollow cylindrical body having a thickness of 10 mm and a thickness of 10 mm was prepared, and a cerolide having a particle size of 507 zm or less was used as the coating material IO.
また、鋳型の被覆装置ｌは本体２が縦３３０１■、横３
５０ｍｍ、高さ４００ｍ■の寸法を有するものを使用し
て、前記中空円筒体（鋳型）に本発明の方法を実施した
。In addition, the mold coating device 1 has a main body 2 of 3301mm in length and 33mm in width.
The method of the invention was carried out on the hollow cylinder (mold) using a mold having dimensions of 50 mm and a height of 400 m.
そして、補助材８の回転数はＯｒｐｍ、３０ｒｐｍ、６
０ｒｐ鳳の３種を、設置部材９による鋳型１１の上下動
回数は１０回、２０回、３０回の３種を、それぞれにつ
いてサンプルＮｏ、１ないしサンプルＮｏ、９として実
験した。各Ｎ。The rotation speed of the auxiliary material 8 is Orpm, 30 rpm, 6
The experiments were conducted using three types of 0-RP screws and three types of up and down movements of the mold 11 by the installation member 9: 10 times, 20 times, and 30 times, respectively, as Sample No. 1 to Sample No. 9. Each N.
の被覆材１０の被覆量（ｇ／ｍ″）は以下に示した表１
に示すとおりである。The coating amount (g/m'') of the coating material 10 is shown in Table 1 below.
As shown below.
表１に示すように、鋳型１１に被覆される被覆材１０の
単位面積当りの量は、補助材８による回転数が大きい程
、また設置部材９による鋳型１１の上下動回数が多い程
、少しづつ多くなる傾向がある。As shown in Table 1, the amount of coating material 10 coated on the mold 11 per unit area becomes smaller as the number of rotations by the auxiliary material 8 increases and the number of vertical movements of the mold 11 by the installation member 9 increases. There is a tendency to increase gradually.
つぎに、上記方法によって鋳型１１に被覆材１１を被覆
して鋳造した場合と、被覆することなく鋳造した場合と
を、上記の表１中の「サンプルＮｏ、５Ｊを例にとり、
以下に鋳肌の比較をする。この鋳物は前記中空円筒体に
７００ ’Ｃのアルミニウム合金（Ｊ Ｉ Ｓ ＡＣ
２Ｂ）を鋳込み鋳造したものである。Next, the cases where the casting mold 11 is coated with the coating material 11 and the case where it is cast without being coated using the above-mentioned method will be explained using "Sample No. 5J" in Table 1 above as an example.
Below is a comparison of the casting surfaces. This casting is made of 700'C aluminum alloy (JIS AC) in the hollow cylinder.
2B) was cast.
その結果、被覆材１１を被覆することなく鋳造した鋳物
の粗さか９０ルｍであるのに対して。As a result, the roughness of the casting cast without coating the coating material 11 was 90 lm.
ｒサンプルＮｏ、５Ｊによる鋳物の粗さは３２トｍであ
り、約局の値を示した。The roughness of the casting made by Sample No. 5J was 32 m, which was about the average value.
（発明の効果）
本発明は以上説明したように、乾燥作業を行うことなく
、鋳型表面の粒子間深部まで被覆材を充填させることが
できる。このため、被覆材の厚さが均等になるので、鋳
型精度が良好になり製品の寸法精度が向上するとともに
、きめの細かい鋳肌を得ることができる。(Effects of the Invention) As described above, the present invention allows the coating material to be filled deep between the particles on the surface of the mold without performing a drying operation. Therefore, since the thickness of the covering material becomes uniform, the precision of the mold is improved, the dimensional precision of the product is improved, and a finely textured casting surface can be obtained.
第１図は、本発明の方法を実施するため装置の断面図。
第２図は、第１図に示す流動層内に鋳型を配置させた状
態を示す断面図、
第３図は、第２図の被覆材と鋳型と補助材との状態を示
す断面図。
第４図は、本発明の方法を実施後の被覆材と鋳型との状
態を示す断面図、
第５図は、従来の鋳型を使用した鋳造の状態を表した断
面図、
第６図は、従来の鋳型と被覆材との被覆状態を表した断
面図である。
１−・・鋳型の被覆装置 ２・・・本体３・・・基
台 ４・・・多孔板５・−・貫通孔
６・・・細孔７・・・ノズル
８・・・補助材９・・・設置部材 １０−・
・被覆材１１−・・鋳型 １２−・・流
動層１３−・・毛状材 立・・・回転軸特
許出願人 トヨタ自動車株式会社
特許出願人 株式会社豊田中央研究所
代 理 人 弁 理 士 萼 優
美（ほか ２名）
第１図
１ 鋳型の被覆装＠ ２・・９本体３ 基台
４ 多孔板
５・貫通孔 ６ 細孔
７゛ノズル８ａｌｖ１＃
９ 設置ｇＪ村 １０ 被覆材１１＃型
１２・１Ｍ、動肩立 回転軸
１３・も状材第２図
第３図
第４図
第５区
第６図FIG. 1 is a sectional view of an apparatus for carrying out the method of the invention. FIG. 2 is a sectional view showing a state where a mold is placed in the fluidized bed shown in FIG. 1, and FIG. 3 is a sectional view showing a state of the coating material, mold, and auxiliary material shown in FIG. 2. FIG. 4 is a cross-sectional view showing the state of the coating material and mold after implementing the method of the present invention, FIG. 5 is a cross-sectional view showing the state of casting using a conventional mold, and FIG. FIG. 3 is a cross-sectional view showing a conventional mold and a coating state covered with a coating material. 1--Mold coating device 2--Main body 3--Base 4--Perforated plate 5--Through hole
6... Pore 7... Nozzle
8... Auxiliary material 9... Installation member 10-.
・Covering material 11--Mold 12--Fluidized bed 13--Hairy material Vertical...Rotating shaft Patent applicant Toyota Motor Corporation Patent applicant Toyota Central Research Institute Co., Ltd. Representative Patent attorney Calyx Excellent
Mi (2 others) Fig. 1 1 Mold coating @ 2...9 Main body 3 Base
4 Perforated plate 5/through hole 6 Fine hole 7゛ nozzle 8 alv1# 9 Installation gJ village 10 Covering material 11# type
12.1M, dynamic shoulder stand rotation axis
13. Peach-shaped material Fig. 2 Fig. 3 Fig. 4 Fig. 5 Section Fig. 6
Claims (1)
面に摺接自在な毛状材を有する補助材を摺接させて被覆
材を鋳型に被覆することを特徴とする鋳型の被覆方法。A mold characterized in that a mold is placed in a fluidized bed of a powdered coating material, and an auxiliary material having a slidable hair-like material is brought into sliding contact with the surface of the mold to cover the mold with the coating material. Coating method.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1757888A JPH0811272B2 (en) | 1988-01-28 | 1988-01-28 | Mold coating method |
| DE88114298T DE3870774D1 (en) | 1987-09-05 | 1988-09-01 | |
| EP88114298A EP0306841B1 (en) | 1987-09-05 | 1988-09-01 | Mold surface treatment process and mold |
| US07/238,848 US4934440A (en) | 1987-09-05 | 1988-09-01 | Mold surface treatment process and mold |
| US08/145,468 US5372179A (en) | 1987-09-05 | 1993-10-22 | Mold surface treatment process and mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1757888A JPH0811272B2 (en) | 1988-01-28 | 1988-01-28 | Mold coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01192443A true JPH01192443A (en) | 1989-08-02 |
| JPH0811272B2 JPH0811272B2 (en) | 1996-02-07 |
Family
ID=11947792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1757888A Expired - Lifetime JPH0811272B2 (en) | 1987-09-05 | 1988-01-28 | Mold coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0811272B2 (en) |
-
1988
- 1988-01-28 JP JP1757888A patent/JPH0811272B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0811272B2 (en) | 1996-02-07 |
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