JPH0212660B2 - - Google Patents
Info
- Publication number
- JPH0212660B2 JPH0212660B2 JP2297882A JP2297882A JPH0212660B2 JP H0212660 B2 JPH0212660 B2 JP H0212660B2 JP 2297882 A JP2297882 A JP 2297882A JP 2297882 A JP2297882 A JP 2297882A JP H0212660 B2 JPH0212660 B2 JP H0212660B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- weight
- casting
- coating agent
- coating
- 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 43
- 238000005266 casting Methods 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000004512 die casting Methods 0.000 claims description 11
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 8
- 235000019353 potassium silicate Nutrition 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004111 Potassium silicate Substances 0.000 claims description 6
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 6
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 238000000576 coating method Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000001879 gelation Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- -1 sulfone sodium succinate Chemical class 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は金型鋳造において用いる塗型剤のう
ち、特に溶湯の射出速度を遅くしたダイカスト鋳
造法に好適する金型鋳造用塗型剤に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a coating agent for mold casting, which is particularly suitable for die-casting methods in which the injection speed of molten metal is slowed down, among coating agents used in mold casting. .
（従来の技術）
圧力鋳造法としてのダイカスト法は生産性向上
等の面における有利性から広く利用されており、
例えば自動車用シリンダブロツク或はシリンダヘ
ツドの如く複雑な形状の鋳造品を得る場合には、
キヤビテイ内で溶湯の温度を下げないで湯廻りを
良くすべく、射出速度を大幅に上げ、且つ射出圧
力を高くするようにしている。(Prior art) The die casting method as a pressure casting method is widely used due to its advantages in terms of productivity improvement, etc.
For example, when obtaining complex-shaped castings such as automobile cylinder blocks or cylinder heads,
In order to improve the circulation of the molten metal within the cavity without lowering its temperature, the injection speed is significantly increased and the injection pressure is increased.
斯るダイカスト法においてはキヤビテイ内での
湯廻りが速いため、キヤビテイを介して溶湯が冷
えることをそれ程考慮する必要がないので、ダイ
カスト法に用いる塗型剤は一般に断熱性をもたな
いもの、例えば粘結剤として水溶性レジンを含む
水溶液中にAl粉末の如き耐熱性金属粉末と黒鉛
の如き炭素質物質を懸濁混合したものを用いてい
る。 In such a die-casting method, the molten metal circulates quickly within the cavity, so there is no need to take into account cooling of the molten metal through the cavity. For example, a mixture of a heat-resistant metal powder such as Al powder and a carbonaceous material such as graphite suspended in an aqueous solution containing a water-soluble resin is used as a binder.
（発明が解決しようとする課題）
しかしながら、溶湯の射出速度を上げると、エ
アーを巻き込み、鋳造品の内部に鋳巣を生じる不
利がある。このため本発明者等は金型の温度を高
くし、射出速度を遅くすることで鋳巣の発生が少
なくなることを見い出した。しかしながら射出速
度を遅くすると湯廻り不良となる問題がある。こ
れを避けるべく重力鋳造法に用いる断熱性のある
塗型剤をキヤビテイ内に塗布することも考えられ
るが、コーテイング性コーテイングライフ等の種
種の点で問題があり適用することができない。(Problems to be Solved by the Invention) However, increasing the injection speed of the molten metal has the disadvantage of entraining air and creating cavities inside the cast product. For this reason, the present inventors have discovered that the occurrence of blowholes can be reduced by increasing the temperature of the mold and slowing down the injection speed. However, if the injection speed is slowed down, there is a problem of poor water circulation. In order to avoid this, it is possible to apply a heat-insulating mold coating agent used in the gravity casting method into the cavity, but this is not applicable due to various problems such as coating property and coating life.
尚重力鋳造とは、金型を使用し重力をもつてキ
ヤビテイ内に溶湯を注入する方案（強制的に圧力
を加えない方案）のことである。この場合、金型
の温度は300〜400℃位になり、その為金型に断熱
性塗型を施さないと溶湯をキヤビテイ内に充満さ
せることができない。 Gravity casting is a method of injecting molten metal into a cavity using gravity (a method that does not forcibly apply pressure) using a mold. In this case, the temperature of the mold is about 300 to 400°C, and therefore, the cavity cannot be filled with molten metal unless the mold is coated with a heat-insulating coating.
本発明者等は上述の如き従来の問題点に鑑み、
これを有効に解決すべく本発明を成したものであ
り、その目的とする処はダイカスト法などの圧力
鋳造法において溶湯の射出速度を遅くしても焼付
或は湯廻り不良を生ずることなく断熱性、付着性
及び離型性に優れた金型鋳造用塗型剤を提供する
にある。 In view of the conventional problems as described above, the present inventors
The present invention was developed to effectively solve this problem, and its purpose is to provide heat insulation without causing seizure or poor circulation even when the injection speed of molten metal is slowed down in pressure casting methods such as die casting. The purpose of the present invention is to provide a coating agent for mold casting that has excellent properties, adhesive properties, and mold release properties.
（課題を解決するための手段）
上記課題を解決するために本発明の塗型剤は、
水100に対し、界面活性剤を1.5〜2.3重量％と合
成雲母水溶液９〜20重量％とＮオクチルアルコー
ルを0.2〜0.3重量％及び粘結剤としての珪酸ソー
ダ、又は珪酸カリウム0.2〜0.3重量％と、金属粉
末、又は金属酸化物粉末４〜６重量％添加配合し
た。(Means for solving the problems) In order to solve the above problems, the mold coating agent of the present invention has the following features:
Based on 100% water, 1.5-2.3% by weight of surfactant, 9-20% by weight of synthetic mica aqueous solution, 0.2-0.3% by weight of N-octyl alcohol, and 0.2-0.3% by weight of sodium silicate or potassium silicate as a binder. and 4 to 6% by weight of metal powder or metal oxide powder.
（実施例） 以下に本発明の好適な実施例を詳述する。(Example) Preferred embodiments of the present invention will be described in detail below.
先ず水８中に、湿潤剤として陰イオン界面活
性剤であるジアルキルスルホン・コハク酸ナトリ
ウムの５％水溶液を150c.c.、塗膜均一安定化剤と
してＮ−オクチルアルコール20c.c.、及び粘結剤と
して水溶性塩類であるケイ酸カリウム溶液20ｇを
入れ、泡の発生を出来るだけ少なくして５〜10分
間混合撹拌する。次いで、この溶液中に金属アル
ミ粉450ｇ及び合成雲母（ナトリウム・フツ素・
四ケイ素を含む）を15％含む水溶液1.5を投入
し10〜15分間混合撹拌し求める塗型剤を得る。 First, 150 c.c. of a 5% aqueous solution of dialkyl sulfone sodium succinate, which is an anionic surfactant, as a wetting agent, 20 c.c. of N-octyl alcohol, as a coating film uniformity stabilizer, and viscosity were added to 8 ml of water. Add 20 g of potassium silicate solution, which is a water-soluble salt, as a binder, and mix and stir for 5 to 10 minutes while minimizing the generation of bubbles. Next, 450 g of metal aluminum powder and synthetic mica (sodium, fluorine,
Add 1.5 liters of an aqueous solution containing 15% of tetrasilicon (containing tetrasilicon) and mix and stir for 10 to 15 minutes to obtain the desired coating agent.
上記実施例において各成分の配合の割合は、水
100に対する重量％で次のようにする。 In the above examples, the mixing ratio of each component is
The weight percentage relative to 100 is as follows.
先ず陰イオン界面活性剤は1.9重量％であり、
実用範囲は、1.5〜2.3重量％が好ましい。1.5重量
％以下の場合、塗布される金型に対して付着力が
弱まる。又、金属アルミ粉が溶液に溶けにくくな
るからである。又、2.3重量％以上の場合、塗型
剤の経時変化が大きくゲル化現象が発生するから
である。 First, the anionic surfactant was 1.9% by weight,
The practical range is preferably 1.5 to 2.3% by weight. If it is less than 1.5% by weight, the adhesion to the mold to which it is applied will be weakened. In addition, the metal aluminum powder becomes difficult to dissolve in the solution. Moreover, if the amount is 2.3% by weight or more, the coating agent will change significantly over time and a gelation phenomenon will occur.
塗膜均一安定化剤として用いるＮオクチルアル
コールは、0.25重量％であり、実用範囲は0.2〜
0.3重量％が好ましい。0.2重量％以下の場合、塗
布される金型の塗布膜均一化が悪く、又、0.3重
量％以上の場合は、ゲル化現象が発生するからで
ある。 N-octyl alcohol used as a coating film uniformity stabilizer is 0.25% by weight, and the practical range is 0.2~
0.3% by weight is preferred. If the amount is less than 0.2% by weight, the coating film on the mold to which it is applied will not be uniform, and if it is more than 0.3% by weight, a gelation phenomenon will occur.
粘結剤として用いる水溶性塩類であるケイ酸カ
リウム溶液は、0.25重量％であり、実用範囲は
0.2〜0.3重量％が好ましい。0.2重量％以下の場
合、金型と塗布膜との密着性が弱く、鋳造時に溶
湯が巻き込まれる。又、0.3重量％以上の場合、
ゲル化現象が発生するからである。 The potassium silicate solution, which is a water-soluble salt used as a binder, is 0.25% by weight, and the practical range is
0.2-0.3% by weight is preferred. If it is less than 0.2% by weight, the adhesion between the mold and the coating film will be weak, and the molten metal will be drawn in during casting. In addition, if it is 0.3% by weight or more,
This is because a gelation phenomenon occurs.
金属アルミ粉は、5.6重量％であり、実用範囲
は４〜６重量％が好ましい。４重量％以下の場
合、カジリや燃付が発生するからである。又、６
重量％以上の場合は、ゲル化現象が発生すると共
に粘度が高くなり、スプレーしにくくなるからで
ある。 The metal aluminum powder is 5.6% by weight, and the practical range is preferably 4 to 6% by weight. This is because if the content is less than 4% by weight, galling or burning may occur. Also, 6
If it exceeds % by weight, a gelation phenomenon occurs and the viscosity increases, making it difficult to spray.
合成雲母を含む水溶液は、14.4重量％であり、
実用範囲は９〜20重量％が好ましい。 The aqueous solution containing synthetic mica is 14.4% by weight,
The practical range is preferably 9 to 20% by weight.
以上の割合で各成分を配合して得た塗型剤を約
200℃に予熱した金型キヤビテイ表面にスプレー
し、キヤビテイ凹部に残る余剰の塗型剤を圧縮空
気にて吹き飛ばし、塗型剤の膜厚を最大4μ程度
とした。その後アルミ合金（ADC12相当）を鋳
造圧力Kg／cm3、湯口速度0.5ｍ／sec、溶湯温度
700℃の条件下でキヤビテイ内に供給した自動車
用のシリンダブロツクをダイカスト鋳造した。 Approx.
It was sprayed onto the surface of the mold cavity preheated to 200°C, and the excess mold coating agent remaining in the cavity recesses was blown away with compressed air, resulting in a film thickness of about 4 μm at maximum. After that, aluminum alloy (equivalent to ADC12) was cast at a pressure of Kg/cm 3 , a gate speed of 0.5 m/sec, and a molten metal temperature.
An automobile cylinder block was die-cast under conditions of 700°C and supplied into the cavity.
得られた製品は、塗型剤の膜厚が最大4μであ
るため寸法精度、鋳肌に優れたものであり、また
塗型剤中には断熱効果に優れた雲母が含まれてい
るため焼付及び湯廻り不良を起こすことなく、更
に雲母は劈開性に富み水と接触して優れた流動性
を発揮するため、製品への塗型剤の付着移行が容
易に行なわれ、鋳造毎に塗型を施しても何ら悪影
響を及ぼさない。 The resulting product has excellent dimensional accuracy and casting surface because the mold coating has a maximum film thickness of 4μ, and the mold coating contains mica, which has an excellent heat insulating effect, so it is easy to bake. In addition, mica has excellent cleavability and exhibits excellent fluidity when it comes in contact with water, so the mold coating agent can easily adhere to and transfer to the product, and the coating mold can be easily adhered to and transferred to the product after each casting. There will be no adverse effects if applied.
次に本発明に係る塗型剤と従来のダイカスト用
塗型剤及び重力鋳造用塗型剤の断熱性を比較した
実験を添付図面を参照しつつ説明する。 Next, an experiment comparing the thermal insulation properties of the mold coating agent according to the present invention and conventional mold coating agents for die casting and gravity casting coating agents will be described with reference to the accompanying drawings.
尚ここで、本発明による塗型剤の主たる成分は
前述のように界面活性剤を添加した雲母水溶液
と、粘結剤としての珪酸ソーダ又は珪酸カリウム
と、金属粉末又は金属酸化物粉末などであり、従
来のダイカスト用塗型剤の主たる成分は約80％の
水と、アルミ粉末及び界面活性剤などで、更に重
力鋳造用塗型剤の主たる成分は、タルク粉（滑
石）又はベンガラ粉末とバインダとして使われる
水ガラスなどである。 Here, the main components of the mold coating agent according to the present invention include the mica aqueous solution to which a surfactant is added as described above, sodium silicate or potassium silicate as a binder, and metal powder or metal oxide powder. The main components of conventional mold coating agents for die casting are approximately 80% water, aluminum powder and surfactants, and the main components of mold coating agents for gravity casting are talc powder (talcum) or red iron powder and a binder. water glass used as a water glass.
実験は第１図に示す如き装置、即ち筒状の金型
１の下端開口部に温度を測定するための熱電対２
を埋設した底部材３を密嵌し、この底部材３の上
面に各種塗型剤を塗布するものとし、斯る装置の
上方からアルミ合金（ADC12相当）1.5Kgの溶湯
４を700℃、圧力30Kg／cm3の条件下で供給し、金
型１の温度と経過時間との関係を夫々の塗型剤に
ついて比較し、その結果を第２図に示した。 The experiment was carried out using an apparatus as shown in Fig. 1, in which a thermocouple 2 was placed at the bottom opening of a cylindrical mold 1 to measure the temperature.
A bottom member 3 in which a molten metal is buried is tightly fitted, and various coating agents are applied to the upper surface of the bottom member 3. A molten metal 4 of 1.5 kg of aluminum alloy (equivalent to ADC12) is poured from above the device at 700°C and under pressure. The relationship between the temperature of the mold 1 and the elapsed time was compared for each mold coating agent, and the results are shown in FIG. 2.
尚、第２図において本発明による塗型剤として
は、前記実施例において示したと同一の配合割合
からなるものを用い、重力鋳造用塗型剤としては
モルコート（商品名：中央発明(株)社製）を用い、
従来のダイカスト用塗型剤としてはＥ−12（商品
名：関東油研(株)社製）を用いた。 In FIG. 2, the mold coating agent according to the present invention has the same compounding ratio as shown in the above example, and the mold coating agent for gravity casting is Molkoat (trade name: Chuo Kaijutsu Co., Ltd.). (manufactured by),
E-12 (trade name: manufactured by Kanto Yuken Co., Ltd.) was used as a conventional mold coating agent for die casting.
第２図から明らかな如く本発明に係る塗型剤の
断熱性は従来のダイカスト用塗型剤に比べ飛躍的
に優れており、略々重力鋳造用塗型剤に等しいこ
とが分かる。 As is clear from FIG. 2, the heat insulating properties of the mold coating according to the present invention are dramatically superior to those of conventional die casting mold coatings, and are approximately equal to those of gravity casting mold coatings.
更に、ダイカスト法における鋳造前の金型温度
は一般に150〜200℃であるので、この温度範囲に
おいて本発明の塗型剤の重力鋳造用塗型剤を比較
すれば、本発明の塗型剤が断熱性において優れ、
したがつて湯廻り性に優れていることが分かる。 Furthermore, since the mold temperature before casting in the die casting method is generally 150 to 200°C, if we compare the coating agent of the present invention with the coating agent for gravity casting in this temperature range, it is found that the coating agent of the present invention is Excellent insulation properties,
Therefore, it can be seen that the water circulation properties are excellent.
（発明の効果）
以上の説明で明らかな如く本発明によれば溶湯
の射出速度を遅くして鋳巣等を生じさせないよう
にしたダイカスト鋳造のキヤビテイ内面に塗布す
る塗型剤を、界面活性剤、Ｎオクチルアルコール
を添加した雲母水溶液と、粘結剤としての珪酸ソ
ーダ、又は珪酸カリウムと、金属粉末、又は金属
酸化物粉末とを配合して構成するようにしたの
で、金型に塗布された塗膜の金型への密着性を向
上させると共に、塗膜を均一化できる。又、塗膜
は断熱性に優れているので、鋳造時の湯廻りが良
く、焼付を生じることがないので、寸法精度に優
れ、鋳巣等を内包しない製品を得ることができ
る。そして本発明の塗型剤は鋳造製品への付着移
行が容易であるため鋳造毎に塗型を施しても悪影
響を及ぼすことがなく、更に従来の如く炭素質物
質を含まないので、作業環境の改善が図れる等多
くの利点を有する。(Effects of the Invention) As is clear from the above explanation, according to the present invention, the coating agent applied to the inner surface of the die casting cavity, which slows down the injection speed of the molten metal to prevent the formation of blowholes, is a surfactant. , a mica aqueous solution to which N-octyl alcohol has been added, sodium silicate or potassium silicate as a binder, and metal powder or metal oxide powder. The adhesion of the coating film to the mold can be improved and the coating film can be made uniform. Furthermore, since the coating film has excellent heat insulation properties, it allows for good circulation during casting and prevents seizure, making it possible to obtain products with excellent dimensional accuracy and no inclusion of blowholes or the like. The mold coating agent of the present invention easily adheres to and transfers to cast products, so there is no adverse effect even if the mold is applied every time it is cast.Furthermore, unlike conventional mold coating agents, it does not contain carbonaceous substances, making it easier to use in the working environment. It has many advantages such as improvement.
図面は本発明の実験結果を示すものであり、第
１図は実験装置の概略側面図、第２図は実験結果
を示す線図である。
尚、図面中１は金型、２は熱電対、３は底部材
である。
The drawings show the experimental results of the present invention; FIG. 1 is a schematic side view of the experimental apparatus, and FIG. 2 is a diagram showing the experimental results. In the drawings, 1 is a mold, 2 is a thermocouple, and 3 is a bottom member.
Claims (1)
鋳造毎に金型キヤビテイ表面に塗布する塗型剤に
おいて、 この塗型剤は水100に対し、界面活性剤を1.5〜
2.3重量％と合成雲母水溶液９〜20重量％とＮオ
クチルアルコールを0.2〜0.3重量％及び粘結剤と
しての珪酸ソーダ、又は珪酸カリウム0.2〜0.3重
量％と、金属粉末、又は金属酸化物粉末４〜６重
量％添加配合されたことを特徴とする金型鋳造用
塗型剤。[Claims] 1. When performing mold casting such as die casting,
The mold coating agent is applied to the surface of the mold cavity for each casting.The coating agent contains 1.5 to 100 parts of surfactant to 100 parts of water.
2.3% by weight, 9 to 20% by weight of a synthetic mica aqueous solution, 0.2 to 0.3% by weight of N octyl alcohol, 0.2 to 0.3% by weight of sodium silicate or potassium silicate as a binder, and metal powder or metal oxide powder 4 A coating agent for mold casting, characterized in that it contains ~6% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2297882A JPS58141830A (en) | 1982-02-15 | 1982-02-15 | Coating agent for mold casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2297882A JPS58141830A (en) | 1982-02-15 | 1982-02-15 | Coating agent for mold casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58141830A JPS58141830A (en) | 1983-08-23 |
| JPH0212660B2 true JPH0212660B2 (en) | 1990-03-23 |
Family
ID=12097644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2297882A Granted JPS58141830A (en) | 1982-02-15 | 1982-02-15 | Coating agent for mold casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58141830A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6011922U (en) * | 1983-07-06 | 1985-01-26 | 明石窯業株式会社 | roof tile |
| JPH0710420B2 (en) * | 1989-12-05 | 1995-02-08 | 日本電装株式会社 | Mold release agent for aluminum alloy casting |
| US5409531A (en) * | 1992-07-01 | 1995-04-25 | Hitachi Powdered Metals Co., Ltd. | Releasing agent for die casting |
| JP2013103256A (en) * | 2011-11-15 | 2013-05-30 | Toyota Motor Corp | Facing method of casting mold |
| CN104475666A (en) * | 2014-10-08 | 2015-04-01 | 铜陵瑞莱科技有限公司 | High temperature resistant environmentally-friendly casting coating and manufacturing method thereof |
| CN106180541A (en) * | 2016-08-01 | 2016-12-07 | 安徽工程大学机电学院 | A kind of cast steel novel environment friendly coating |
-
1982
- 1982-02-15 JP JP2297882A patent/JPS58141830A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58141830A (en) | 1983-08-23 |
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