JPH02280940A - Organic foaming fluid self-hardening mold composition - Google Patents
Organic foaming fluid self-hardening mold compositionInfo
- Publication number
- JPH02280940A JPH02280940A JP9855489A JP9855489A JPH02280940A JP H02280940 A JPH02280940 A JP H02280940A JP 9855489 A JP9855489 A JP 9855489A JP 9855489 A JP9855489 A JP 9855489A JP H02280940 A JPH02280940 A JP H02280940A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- weight
- water
- agent
- organic
- 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
- 238000005187 foaming Methods 0.000 title claims abstract description 22
- 239000000203 mixture Substances 0.000 title claims abstract description 14
- 239000012530 fluid Substances 0.000 title claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000005011 phenolic resin Substances 0.000 claims abstract description 13
- 150000002895 organic esters Chemical class 0.000 claims abstract description 10
- 238000004898 kneading Methods 0.000 claims abstract description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 42
- -1 polyoxyethylene Polymers 0.000 abstract description 10
- 239000004088 foaming agent Substances 0.000 abstract description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000377 silicon dioxide Substances 0.000 abstract description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract description 5
- 125000000217 alkyl group Chemical group 0.000 abstract description 4
- 235000014113 dietary fatty acids Nutrition 0.000 abstract description 4
- 239000000194 fatty acid Substances 0.000 abstract description 4
- 229930195729 fatty acid Natural products 0.000 abstract description 4
- 239000003110 molding sand Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract description 2
- 150000002596 lactones Chemical class 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 abstract description 2
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000002352 surface water Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000007849 furan resin Substances 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- JTXMVXSTHSMVQF-UHFFFAOYSA-N 2-acetyloxyethyl acetate Chemical compound CC(=O)OCCOC(C)=O JTXMVXSTHSMVQF-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- NCHBYORVPVDWBJ-UHFFFAOYSA-N 2-(3-methylbutoxy)ethanol Chemical compound CC(C)CCOCCO NCHBYORVPVDWBJ-UHFFFAOYSA-N 0.000 description 1
- INFFATMFXZFLAO-UHFFFAOYSA-N 2-(methoxymethoxy)ethanol Chemical compound COCOCCO INFFATMFXZFLAO-UHFFFAOYSA-N 0.000 description 1
- RWLALWYNXFYRGW-UHFFFAOYSA-N 2-Ethyl-1,3-hexanediol Chemical compound CCCC(O)C(CC)CO RWLALWYNXFYRGW-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 229940093475 2-ethoxyethanol Drugs 0.000 description 1
- UPGSWASWQBLSKZ-UHFFFAOYSA-N 2-hexoxyethanol Chemical compound CCCCCCOCCO UPGSWASWQBLSKZ-UHFFFAOYSA-N 0.000 description 1
- HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- VEZXCJBBBCKRPI-UHFFFAOYSA-N beta-propiolactone Chemical compound O=C1CCO1 VEZXCJBBBCKRPI-UHFFFAOYSA-N 0.000 description 1
- DLDJFQGPPSQZKI-UHFFFAOYSA-N but-2-yne-1,4-diol Chemical compound OCC#CCO DLDJFQGPPSQZKI-UHFFFAOYSA-N 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 239000001087 glyceryl triacetate Substances 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 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
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は有機系発泡流動自硬性鋳型組成物に関し、詳し
くは鋳型強度、発泡安定性を改善した有機系発泡流動自
硬性鋳型組成物に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an organic foaming fluid self-hardening mold composition, and more particularly to an organic foaming fluid self-hardening mold composition with improved mold strength and foaming stability. It is.
〔従来の技術及び発明が解決しようとする課題〕従来よ
り酸硬化性樹脂、例えばフラン系樹脂及びフェノール系
樹脂、及びフラン−フェノール系樹脂をバインダーの主
成分とし、酸性硬化剤、水分、界面活性剤（発泡剤）を
配合して有機系発泡流動自硬性鋳型を製造することは知
られている。[Prior art and problems to be solved by the invention] Conventionally, acid-curing resins such as furan-based resins, phenolic resins, and furan-phenolic resins are used as main components of binders, and acid-curing agents, moisture, and surfactants are used as binders. It is known that an organic foaming fluid self-hardening mold can be produced by adding a foaming agent.
しかしながら、これらのバインダー成分は硬化挙動に関
して水分の影響を受けやすい問題点もあり、この配合組
成物を用いて鋳物砂の発泡安定性を付与させるには、鋳
物砂を適度な湿潤状態にしなければならず、自ずから水
分を多く配合せざるを得なく、鋳型強度低下の原因にも
なっていた。又、鋳型強度を上げるにはこれらのバイン
ダー成分及び硬化剤を増加せざるを得なく造型コストが
高い欠点が生じていた。However, these binder components have the problem of being easily affected by moisture with respect to their curing behavior, and in order to impart foaming stability to foundry sand using this blended composition, the foundry sand must be kept in an appropriately moist state. Therefore, a large amount of water had to be added, which caused a decrease in mold strength. Furthermore, in order to increase the strength of the mold, the binder component and curing agent must be increased, resulting in a high molding cost.
本発明者らは、上記の課題を解決すべく鋭意検討した結
果、本発明を完成するに到った。The present inventors have completed the present invention as a result of intensive studies to solve the above problems.
即ち本発明は、鋳物砂１００重量部に対して、水溶性フ
ェノール樹脂０．５〜１０重量部、有機エステル硬化剤
０．１〜５．０重量部、界面活性剤０．０１〜５．０重
量部、水分０．５〜５．０重量部からなる混合物を混練
して得られることを特徴とする特線系発泡流動自硬性鋳
型組成物を提供するものである。That is, the present invention uses 0.5 to 10 parts by weight of a water-soluble phenolic resin, 0.1 to 5.0 parts by weight of an organic ester curing agent, and 0.01 to 5.0 parts by weight of a surfactant to 100 parts by weight of foundry sand. The object of the present invention is to provide a special wire foam fluid self-hardening mold composition, which is obtained by kneading a mixture consisting of parts by weight and 0.5 to 5.0 parts by weight of water.
−ａに、発泡流動性を有する鋳物砂を作るには、砂粒間
に液相を形成させ発泡させるべく液体成分を増加させる
必要があり、前記のバインダー成分と水分が自ずから多
く配合される傾向にある。特に水分を増加させ鋳物砂に
充分な湿潤状態を付与させ砂粒間にミクロな気泡を形成
させる、所謂ミクロベアリング効果により流動性を向上
させることを目的とするものである。-a. In order to make molding sand with foaming fluidity, it is necessary to increase the liquid component in order to form a liquid phase between the sand grains and cause foaming, and the binder component and water tend to be blended in large amounts. be. In particular, the purpose is to improve fluidity through the so-called micro-bearing effect, which increases the water content and provides sufficient moisture to the foundry sand to form micro air bubbles between the sand grains.
ここでミクロな気泡を形成させるにはバインダー成分及
び配合量、硬化剤、水分、界面活性剤（発泡剤）の選定
及び調整が必要である。発泡流動自硬性鋳型において従
来より用いられる酸硬化性であるフラン系樹脂及びフェ
ノール系樹脂、及びフラン−フェノール系樹脂において
は、発泡させる上で不可欠な水が著しく硬化特性に影響
を与えるため、極めてその調整が難しく、又フラン系樹
脂においては、樹脂中に含まれるフルフリルアルコール
が消泡効果を有するため発泡安定性が低下する。In order to form microbubbles here, it is necessary to select and adjust the binder component and blending amount, curing agent, water, and surfactant (foaming agent). In acid-curing furan resins, phenolic resins, and furan-phenolic resins conventionally used in foaming fluid self-hardening molds, water, which is essential for foaming, significantly affects the curing properties, so it is extremely difficult to use. It is difficult to adjust, and furfuryl alcohol contained in the resin has an antifoaming effect in furan-based resins, resulting in a decrease in foaming stability.
本発明で用いられる水溶性フェノール樹脂とは、過剰の
ＮａＯＨ，ＫＯＨ等のアルカリを触媒とし、フェノール
とホルマリンを反応させて得られるものであり、樹脂中
の水分及び重量平均分子量は特に限定されるものではな
い。The water-soluble phenol resin used in the present invention is obtained by reacting phenol and formalin using excess alkali such as NaOH or KOH as a catalyst, and the water content and weight average molecular weight in the resin are particularly limited. It's not a thing.
また硬化剤として用いられる有機エステルとしてはラク
トン類、或いは炭素数１〜１０の一価又は多価アルコー
ルと炭素数１〜ＩＯの有機カルボン酸より導かれる有機
エステルの単独もしくは混合物が用いられ、γ−ブチロ
ラクトン、プロピオンラクトン、ε−カプロラクトン、
ギ酸エチル、エチレングリコールジアセテート、トリア
セチン等が好ましく使用される。As the organic ester used as a curing agent, lactones or organic esters derived from monohydric or polyhydric alcohols having 1 to 10 carbon atoms and organic carboxylic acids having 1 to 10 carbon atoms are used alone or in mixtures. -butyrolactone, propionlactone, ε-caprolactone,
Ethyl formate, ethylene glycol diacetate, triacetin, etc. are preferably used.
また界面活性剤（発泡剤）としては、炭素数６〜２２の
アルキル基を有するポリオキシエチレン脂肪酸エステル
、及び炭素数６〜２２のアルキル基を有するグリセリン
脂肪酸エステル、炭素数６〜２２のアルキル基を有する
ポリオキシエチレンソルビタン脂肪酸エステル等のエス
テル型界面活性剤が好ましい、この他、上記以外の非イ
オン界面活性剤、陰イオン界面活性剤等も使用でき、特
にこれらのものとしては限定されるものではない。更に
使用し易くするため、上記界面活性剤を適度な濃度の水
溶液又は有機エステル型硬化剤と混合して用いることも
できる。In addition, as surfactants (foaming agents), polyoxyethylene fatty acid esters having alkyl groups having 6 to 22 carbon atoms, glycerin fatty acid esters having alkyl groups having 6 to 22 carbon atoms, and alkyl groups having 6 to 22 carbon atoms are used. Ester-type surfactants such as polyoxyethylene sorbitan fatty acid ester having the following are preferred. In addition, nonionic surfactants and anionic surfactants other than those mentioned above can also be used, but these are not particularly limited. isn't it. In order to further facilitate use, the above-mentioned surfactant may be mixed with an appropriate concentration of an aqueous solution or an organic ester type curing agent.
本発明の鋳型組成物中の水溶性フェノール樹脂の配合量
は鋳物砂１００重量部に対して０．５〜１０重量部であ
り、０．５重量部未満であると鋳型強度が著しく低下し
、また逆に１０重量部を超えると鋳造時においてガス発
生量が多くなり、鋳物欠陥が発生し易くなる。又、有機
エステル硬化剤の配合量は鋳物砂１００重量部に対して
０．１〜５．０重量部であり、０．１重量部未満である
と未硬化を起こし易く、また逆に５．０重量部を超える
と硬化阻害を起こし易（、またガス発生量が多くなり、
鋳物欠陥が発生し易くなる。又、界面活性剤の配合量は
鋳物砂１００重量部に対して０．０１〜５．０重量部で
あり、０．０１重量部未満であると、一般的に発泡性が
悪くなり、また逆に５．０重量部を超えると硬化阻害を
起こし易くなる。又、水の配合量は鋳物砂１００重量部
に対して０．５〜５．０重量部であり、０．５重量部未
満であると界面活性剤と同様に発泡性が悪くなり、また
逆に５．０重量部を超えると硬化阻害を起こすなどの諸
問題が発生する。The amount of water-soluble phenolic resin in the mold composition of the present invention is 0.5 to 10 parts by weight per 100 parts by weight of foundry sand, and if it is less than 0.5 parts by weight, the mold strength will be significantly reduced. On the other hand, if it exceeds 10 parts by weight, the amount of gas generated during casting will increase, making casting defects more likely. The amount of the organic ester curing agent is 0.1 to 5.0 parts by weight per 100 parts by weight of the foundry sand, and if it is less than 0.1 part by weight, uncuring tends to occur; If it exceeds 0 parts by weight, curing is likely to be inhibited (and the amount of gas generated increases,
Casting defects are more likely to occur. In addition, the amount of surfactant to be blended is 0.01 to 5.0 parts by weight per 100 parts by weight of foundry sand, and if it is less than 0.01 parts by weight, foaming properties generally deteriorate, and vice versa. If the amount exceeds 5.0 parts by weight, curing inhibition tends to occur. In addition, the amount of water added is 0.5 to 5.0 parts by weight per 100 parts by weight of foundry sand, and if it is less than 0.5 parts by weight, the foaming properties will be poor like surfactants, If the amount exceeds 5.0 parts by weight, problems such as curing inhibition will occur.
更に、前記以外の添加剤として多価アルコール類や脂肪
族エーテルアルコール類を用いることにより水分の低減
が可能であり、その結果鋳型強度の向上及び気泡の粘性
の向上による発泡安定化を計ることができる。Furthermore, by using polyhydric alcohols or aliphatic ether alcohols as additives other than those mentioned above, it is possible to reduce water content, and as a result, it is possible to improve mold strength and stabilize foaming by improving bubble viscosity. can.
用いられる多価アルコール類としては、エチレングリコ
ール、プロピレングリコール、トリエチレングリコール
、１．２−ブタンジオール、１．３−ブタンジオール、
１．４−ブタンジオール、２．３−ブタンジオール、１
．５−ベンタンジオール、２−ブチン−１，４−ジオー
ル、２−メチル−２，４−ベンタンジオール、２−エチ
ル−１，３ヘキサンジオール等の二価アルコール類、及
びグリセリン等の三価アルコール類、及びソルビトール
等の糖アルコール類が挙げられる。また脂肪族エーテル
アルコール類としては、２−メトキシエタノール、２−
エトキシエタノール、２−（メトキシメトキシ）エタノ
ール、２−イソプロポキシエタノール、２−ブトキシェ
タノール、２−（イソペンチルオキシ）エタノール、２
−（ヘキシルオキシ）エタノール等が挙げられる。The polyhydric alcohols used include ethylene glycol, propylene glycol, triethylene glycol, 1.2-butanediol, 1.3-butanediol,
1.4-butanediol, 2.3-butanediol, 1
．． Dihydric alcohols such as 5-bentanediol, 2-butyne-1,4-diol, 2-methyl-2,4-bentanediol, 2-ethyl-1,3hexanediol, and trihydric alcohols such as glycerin. and sugar alcohols such as sorbitol. In addition, examples of aliphatic ether alcohols include 2-methoxyethanol, 2-
Ethoxyethanol, 2-(methoxymethoxy)ethanol, 2-isopropoxyethanol, 2-butoxyethanol, 2-(isopentyloxy)ethanol, 2
-(hexyloxy)ethanol and the like.
また更に鋳型強度を向上させる目的でシランカップリン
グ剤を加えても差し支えない、好ましいシランカップリ
ング剤としては、γ−アミノプロピルトリエトキシシラ
ンやＴ−（２−アミノエチル）アミノプロピルトリメト
キシシラン等が挙げられ、特に限定されるものではない
。Further, a silane coupling agent may be added for the purpose of improving mold strength. Preferred silane coupling agents include γ-aminopropyltriethoxysilane and T-(2-aminoethyl)aminopropyltrimethoxysilane. These include, but are not particularly limited to.
また本発明に用いられる鋳物砂としては、石英質を主成
分とする珪砂の他、クロマイト、ジルコン砂、オリビン
等の無機耐火性粒状物が使用されるが特に限定されるも
のではない。Further, as the foundry sand used in the present invention, in addition to silica sand containing quartz as a main component, inorganic refractory granules such as chromite, zircon sand, and olivine can be used, but are not particularly limited.
以下、実施例により本発明を更に詳細に説明するが、本
発明はこれらの実施例のみに限定されるものではない。EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited only to these Examples.
実施例１〜９
揚滓浮選珪砂５号の砂１００重量部に対し、有機エステ
ル硬化剤であるエチレングリコールジアセテー日、５重
量部を混練し、続いてＫＯＨ／フェノールのモル比１．
Ｏ，ホルムアルデヒド／フェノールのモル比２．０であ
り、重量平均分子１３．０００である水溶性アルカリフ
ェノール樹脂４．０重量部及び水１．５重量部及び表−
１に示す界面活性剤（発泡剤）０．１重量部を混練し発
泡流動砂を得た。Examples 1 to 9 100 parts by weight of slag flotation silica sand No. 5 was kneaded with 5 parts by weight of ethylene glycol diacetate, an organic ester curing agent, followed by a KOH/phenol molar ratio of 1.
O, 4.0 parts by weight of a water-soluble alkali phenol resin with a formaldehyde/phenol molar ratio of 2.0 and a weight average molecular weight of 13.000, and 1.5 parts by weight of water, and Table -
0.1 part by weight of the surfactant (foaming agent) shown in 1 was kneaded to obtain foamed fluidized sand.
この発泡流動砂を用いて径５０ｍ１１１、高さ５０ｍ＋
ｓの円筒形のテストピースを２５°Ｃで成形し、２４時
間後の鋳型圧縮強度を測定した。Using this foamed fluidized sand, diameter 50m111, height 50m+
A cylindrical test piece of s was molded at 25°C, and the mold compressive strength was measured 24 hours later.
更に、発泡流動砂の発泡安定性を測定するため、上記の
発泡流動砂を透明な径５０−１高さ２００−一の円筒形
模型に充填成形し５分後の上型面の沈下した長さを測定
した。即ち沈下した長さが短い程発泡安定性が良好であ
ることを示す。Furthermore, in order to measure the foaming stability of the foamed fluidized sand, the above foamed fluidized sand was filled and molded into a transparent cylindrical model with a diameter of 50-1 and a height of 200-1, and the length of the sunken upper mold surface after 5 minutes was measured. We measured the That is, the shorter the settled length, the better the foaming stability.
これらの結果を表−１に示す。These results are shown in Table-1.
比較例１〜３
揚滓浮選珪砂５号の砂１００重量部に対し、フラン樹脂
硬化剤１．５重量部を混練し、続いてフラン樹脂４．０
重量部及び水１．５重量部及び表−１に示す界面活性剤
（発泡剤）０．１重量部を混練し発泡流動砂を得た。Comparative Examples 1 to 3 1.5 parts by weight of furan resin curing agent was kneaded with 100 parts by weight of slag flotation silica sand No. 5, followed by 4.0 parts by weight of furan resin.
1.5 parts by weight of water and 0.1 part by weight of the surfactant (foaming agent) shown in Table 1 were kneaded to obtain foamed fluidized sand.
この発泡流動砂を用いて径５０ｍｍ、高さ５０ｍｍの円
筒形のテストピースを２５℃で成形し、実施例１〜９と
同様に２４時間後の鋳型圧縮強度及び発泡安定性を測定
した。Using this foamed fluidized sand, a cylindrical test piece with a diameter of 50 mm and a height of 50 mm was molded at 25° C., and the mold compressive strength and foaming stability after 24 hours were measured in the same manner as in Examples 1 to 9.
これらの結果を表−１に示す。These results are shown in Table-1.
比較例４〜６
揚滓浮選珪砂５号の砂１００重量部に対し、フラン樹脂
硬化剤１６５重量部を混練し、続いてフェノールレゾー
ル樹脂４．０重量部及び水１．５重量部及び表−１に示
す界面活性剤（発泡剤）０．１重量部を混練し発泡流動
砂を得た。Comparative Examples 4 to 6 100 parts by weight of slag flotation silica sand No. 5 was kneaded with 165 parts by weight of a furan resin curing agent, followed by 4.0 parts by weight of phenol resol resin, 1.5 parts by weight of water and 0.1 part by weight of the surfactant (foaming agent) shown in -1 was kneaded to obtain foamed fluidized sand.
この発泡流動砂を用いて径５０１、高さ５０ｍｍの円筒
形のテストピースを２５°Ｃで成形し、実施例１〜９と
同様に２４時間後の鋳型圧縮強度及び発泡安定性を測定
した。Using this foamed fluidized sand, a cylindrical test piece with a diameter of 501 mm and a height of 50 mm was molded at 25°C, and the mold compressive strength and foaming stability after 24 hours were measured in the same manner as in Examples 1 to 9.
これらの結果を表−１に示す。These results are shown in Table-1.
比較例７〜９
揚滓浮選珪砂５号の砂１００重盪部に対し、フラン樹脂
硬化剤１．５重量部を混練し、続いてフラン−フェノー
ル系樹脂４．０重量部及び水１．５重量部及び表−１に
示す界面活性剤（発泡剤）０．１重量部を混練し発泡流
動砂を得た。Comparative Examples 7 to 9 1.5 parts by weight of a furan resin curing agent was kneaded with 100 parts by weight of slag flotation silica sand No. 5, followed by 4.0 parts by weight of a furan-phenolic resin and 1.0 parts by weight of water. 5 parts by weight and 0.1 part by weight of the surfactant (foaming agent) shown in Table 1 were kneaded to obtain foamed fluidized sand.
この発泡流動砂を用いて径５０ｍｍ、高さ５０ｍｍの円
筒形のテストピースを２５°Ｃで成形し、実施例１〜９
と同様に２４時間後の鋳型圧縮強度及び発泡安定性を測
定した。Using this foamed fluidized sand, a cylindrical test piece with a diameter of 50 mm and a height of 50 mm was molded at 25°C.
The mold compressive strength and foaming stability after 24 hours were measured in the same manner as above.
これらの結果を表−１に示す。These results are shown in Table-1.
Claims (1)
．５〜１０重量部、有機エステル硬化剤０．１〜５．０
重量部、界面活性剤０．０１〜５．０重量部、水分０．
５〜５．０重量部からなる混合物を混練して得られるこ
とを特徴とする有機系発泡流動自硬性鋳型組成物。Water-soluble phenolic resin 0 per 100 parts by weight of foundry sand
．． 5-10 parts by weight, organic ester curing agent 0.1-5.0
parts by weight, 0.01 to 5.0 parts by weight of surfactant, 0.0 parts by weight of water.
An organic foaming fluid self-hardening mold composition obtained by kneading a mixture comprising 5 to 5.0 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1098554A JPH0767597B2 (en) | 1989-04-18 | 1989-04-18 | Organic foaming flow self-hardening mold composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1098554A JPH0767597B2 (en) | 1989-04-18 | 1989-04-18 | Organic foaming flow self-hardening mold composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02280940A true JPH02280940A (en) | 1990-11-16 |
| JPH0767597B2 JPH0767597B2 (en) | 1995-07-26 |
Family
ID=14222907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1098554A Expired - Fee Related JPH0767597B2 (en) | 1989-04-18 | 1989-04-18 | Organic foaming flow self-hardening mold composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0767597B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010944A (en) * | 2001-06-28 | 2003-01-15 | Asahi Organic Chem Ind Co Ltd | Organic composition for foaming fluid self-strengthening mold |
| WO2007058254A1 (en) * | 2005-11-21 | 2007-05-24 | Sintokogio, Ltd. | Process for making molds |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937820A (en) * | 1972-08-14 | 1974-04-08 | ||
| JPS5399033A (en) * | 1977-02-10 | 1978-08-30 | Hitachi Metals Ltd | Preparation of organic foaming self hardening mold |
| JPS62279048A (en) * | 1986-05-27 | 1987-12-03 | Dainippon Ink & Chem Inc | Composition for self-curing binder for casting |
-
1989
- 1989-04-18 JP JP1098554A patent/JPH0767597B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937820A (en) * | 1972-08-14 | 1974-04-08 | ||
| JPS5399033A (en) * | 1977-02-10 | 1978-08-30 | Hitachi Metals Ltd | Preparation of organic foaming self hardening mold |
| JPS62279048A (en) * | 1986-05-27 | 1987-12-03 | Dainippon Ink & Chem Inc | Composition for self-curing binder for casting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010944A (en) * | 2001-06-28 | 2003-01-15 | Asahi Organic Chem Ind Co Ltd | Organic composition for foaming fluid self-strengthening mold |
| WO2007058254A1 (en) * | 2005-11-21 | 2007-05-24 | Sintokogio, Ltd. | Process for making molds |
| EP1952908A1 (en) * | 2005-11-21 | 2008-08-06 | Sintokogio, Ltd. | Process for making molds |
| EP1952908A4 (en) * | 2005-11-21 | 2009-12-30 | Sintokogio Ltd | Process for making molds |
| EA013090B1 (en) * | 2005-11-21 | 2010-02-26 | Синтокогио, Лтд. | Process for making molds |
| US8790560B2 (en) | 2005-11-21 | 2014-07-29 | Sintokogio, Ltd. | Process for making molds |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0767597B2 (en) | 1995-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1995009892A1 (en) | Ester cured no-bake foundry binder system | |
| GB2154593A (en) | Foundry sand compositions | |
| JP2831794B2 (en) | Method of manufacturing sand mold for castings | |
| JPH02280940A (en) | Organic foaming fluid self-hardening mold composition | |
| JP3130495B2 (en) | Hardener composition for mold molding | |
| EP0556955B1 (en) | Alkaline resol phenol-aldehyde resin binder compositions | |
| JPS62279048A (en) | Composition for self-curing binder for casting | |
| JP2747367B2 (en) | Mold or core manufacturing method | |
| JP3459098B2 (en) | Mold manufacturing method | |
| JP4372535B2 (en) | Binder composition for mold, self-hardening mold using the same, and method for producing self-hardening mold | |
| SU1366277A1 (en) | Self-hardening sand for making moulds and cores | |
| JP3197973B2 (en) | Composition for foundry sand | |
| JP2892467B2 (en) | Binder composition for foundry sand | |
| JPH02211929A (en) | Organic series foaming fluidity self-hardened mold composition | |
| SU719780A1 (en) | Mix for making casting moulds | |
| JP2831825B2 (en) | Binder composition for foundry sand | |
| JP2892470B2 (en) | Binder composition for foundry sand | |
| JP2892468B2 (en) | Binder composition for foundry sand | |
| JP2542144B2 (en) | Binder composition for organic ester-curable foundry sand and method for producing mold using the same | |
| SU1532181A1 (en) | Sand for making moulds and cores | |
| JP2892471B2 (en) | Binder composition for foundry sand | |
| JP3123031B2 (en) | Binder composition for mold production and method for producing mold | |
| RU2229488C2 (en) | Cold-hardening blend | |
| JP3200644B2 (en) | Binder composition for mold and method for producing mold | |
| JP2892466B2 (en) | Binder composition for foundry sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080726 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |