JPS63212037A - Production of molding tool - Google Patents
Production of molding toolInfo
- Publication number
- JPS63212037A JPS63212037A JP4575587A JP4575587A JPS63212037A JP S63212037 A JPS63212037 A JP S63212037A JP 4575587 A JP4575587 A JP 4575587A JP 4575587 A JP4575587 A JP 4575587A JP S63212037 A JPS63212037 A JP S63212037A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- smooth
- mold surface
- heat
- molding tool
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000465 moulding Methods 0.000 title abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 37
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 16
- 239000006260 foam Substances 0.000 claims abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- -1 polyethylene Polymers 0.000 abstract description 13
- 239000000155 melt Substances 0.000 abstract description 12
- 239000004698 Polyethylene Substances 0.000 abstract description 10
- 229920000573 polyethylene Polymers 0.000 abstract description 10
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 229920006327 polystyrene foam Polymers 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 1
- 239000002984 plastic foam Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 7
- 229910001018 Cast iron Inorganic materials 0.000 description 7
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000012188 paraffin wax Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012768 molten material Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 1
- 240000000972 Agathis dammara Species 0.000 description 1
- 241000016649 Copaifera officinalis Species 0.000 description 1
- 239000004859 Copal Substances 0.000 description 1
- 235000010919 Copernicia prunifera Nutrition 0.000 description 1
- 244000180278 Copernicia prunifera Species 0.000 description 1
- 229920002871 Dammar gum Polymers 0.000 description 1
- VOWAEIGWURALJQ-UHFFFAOYSA-N Dicyclohexyl phthalate Chemical compound C=1C=CC=C(C(=O)OC2CCCCC2)C=1C(=O)OC1CCCCC1 VOWAEIGWURALJQ-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 240000002871 Tectona grandis Species 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- UTKBLLDLHPDWDU-ODZAUARKSA-N acetic acid;(z)-but-2-enedioic acid Chemical compound CC(O)=O.OC(=O)\C=C/C(O)=O UTKBLLDLHPDWDU-ODZAUARKSA-N 0.000 description 1
- 239000012164 animal wax Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- VNGOYPQMJFJDLV-UHFFFAOYSA-N dimethyl benzene-1,3-dicarboxylate Chemical compound COC(=O)C1=CC=CC(C(=O)OC)=C1 VNGOYPQMJFJDLV-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012165 plant wax Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は平滑な表面を必要とされる成形物や、平滑な型
面を必要とさｈる鋳型や樹脂型を製造する際に用いられ
る成形型に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is used in manufacturing molded products that require a smooth surface, and molds and resin molds that require a smooth mold surface. This relates to molds.
通常、フルモールド法によって鋳型をｆＦ、１ｆｆｌす
る場合やアンダーカート部を有する成形物を成形する場
合等には熱可塑性プラスチ９り発泡体からなる成形型が
用いらねでいる。該熱可塑性プラスチ−り発泡体からな
る成形型は熱により軟化収縮あるいけ燃焼消失し易く、
また溶剤にも溶解し易いので鋳型から、あるいは成形物
がアンダーカート部を有していても成形型から容易に取
除くことが出来る。しかし熱可塑性プラスチーク発泡体
からなる成形型は型面が粗面になるから得られる成形物
表面も粗面となり、精密度を有する成形物を成形する際
くけ大きな問題となっていた。Normally, a mold made of thermoplastic plastic foam is not used when molding a mold to fF or 1 ffl by the full mold method or when molding a molded product having an undercart portion. The mold made of the thermoplastic foam tends to soften and shrink due to heat and is easily burnt out.
Furthermore, since it is easily soluble in solvents, it can be easily removed from the mold or from the mold even if the molded product has an undercart portion. However, molds made of thermoplastic plastic foam have a rough mold surface, and the resulting molded product also has a rough surface, which has been a major problem when molding precision molded products.
そこで従来では熱可塑性プラスチーク発泡体からなる成
形型の型面にプラスチ−クコ−ティングを施すことが提
案されている（特開昭５７−１８１８１９号）。該提案
においては該型面に塩ビゾル等をコーティングしたシ、
熱収縮フィルム等が張シ付けらねる。Therefore, it has been proposed to apply a plastic coating to the mold surface of a mold made of thermoplastic plastic foam (Japanese Patent Laid-Open No. 181819/1983). In this proposal, the mold surface is coated with vinyl chloride sol, etc.
Heat-shrinkable film, etc. may be difficult to apply.
しかしながら上記従来技術においては塩ビゾルのような
流動性物質を型面にコーティングする場合にはコーティ
ングの際に塗布むらが生じ易く、型面に均一膜厚のコー
ティングを施すことが困難でおろし、熱収縮フィルムを
型面に張シ付ける場合には、張シ付けの際に完全にしわ
よりをな（することが不可能で型面を平滑にすることが
出来ない。However, in the above-mentioned conventional technology, when coating the mold surface with a fluid substance such as PVC sol, uneven coating tends to occur during coating, and it is difficult to coat the mold surface with a uniform thickness. When a shrink film is stretched over a mold surface, it is impossible to completely wrinkle the film during stretching, making it impossible to make the mold surface smooth.
Ｃ問題点を解決するだめの手段〕
本発明は上記従来の問題点を解決する手段として、熱可
塑性プラスチク発泡体からなる成形型の型面上に熱溶融
性材料の溶融物層を存在せしめ、該溶融物層の半流動状
態で平滑面で押圧し冷却して核溶融物層を固化せしめる
ものでおる。Means for Solving Problem C] The present invention, as a means for solving the above-mentioned conventional problems, provides a molten layer of a thermofusible material on the mold surface of a mold made of thermoplastic foam, The semi-fluid state of the melt layer is pressed against a smooth surface and cooled to solidify the core melt layer.
本発明に言う熱可塑性プラスチ・り発泡体とはポリエチ
レン、ポリプロピレン、ポリ塩化ビニル。The thermoplastic plastic foam referred to in the present invention includes polyethylene, polypropylene, and polyvinyl chloride.
ポリエチレン等の熱可塑性プラスチ櫂りの発泡体であり
、特に溶剤に溶解し易くかつ加熱によシ速やかに軟化収
縮あるいは燃焼消失するポリエチレンは望ましい材料で
ある。ポリエチレン発泡体によって中子芯体を作成する
にはビーズ成形法、ポリスチレン発泡体の切削加工法等
の通常の方法が用いられる。A thermoplastic plastic foam such as polyethylene is a particularly desirable material, especially polyethylene, which is easily soluble in solvents and quickly softens and shrinks or burns out when heated. In order to create a core body from polyethylene foam, conventional methods such as bead molding method and polystyrene foam cutting method are used.
本発明に用いられる熱溶融性材料とけポリエチレン、ポ
リプロピレン、酢ビ、酢ビ−エチレン共重合体、パラフ
ィン、マイクロクリスタリンワークス、粗製ワークス、
酸化パラフィン等の石油系ワークス、木ろう、由ろう、
カルナバ、密ろう。Heat-melting materials used in the present invention include polyethylene, polypropylene, vinyl acetate, vinyl acetate-ethylene copolymer, paraffin, microcrystalline works, crude works,
Petroleum-based works such as oxidized paraffin, wood wax, yuro,
Carnauba, secretly.
カスターワ叩りス、キャンデリーワ岬りス等の動植物性
ワ、／ス、ロジン、ダンマー、コーパル。Plant and animal waxes such as Castawara and Candeliiwa, Rosin, Dunmar, and Copal.
セラ叩り、水添ロジン、ロジンエステル、エステルガム
、クマロン、インデン、テルペン等のロジン系やロジン
誘導体、石油系樹脂、マレイン酸樹脂、酢ビ−マレイン
酸樹脂、ポリエステル樹脂。Rosin type and rosin derivatives such as cera beat, hydrogenated rosin, rosin ester, ester gum, coumaron, indene, terpene, petroleum resin, maleic acid resin, acetic acid-maleic acid resin, polyester resin.
ポリアミド、ジシクロへキシルフタＶ−）、ジメチルイ
ソフタレートのような固体可塑剤等比較的低温で溶融し
流動する材料であυ、こｈらは単独又は２種以上相互に
混合ぜられでもよい。望ましくは上記成形型に用いられ
る熱可塑性プラスチ９り発泡体を構成する熱可塑性プラ
スチークよりも融点の低いものを選択する。何となれば
もし該熱可塑性ブチスチークよりも融点の高い材料を用
いると成形型が該材料溶融物に接触した場合に大きく変
形するおそれがある。成形材料がモノマーや溶剤を含ん
でいる場合には該熱溶融性材料として耐溶剤性を有する
例えばポリエチレンやポリプロピレン等を用いることが
望ましく、オた成形型を溶剤によシ溶解除去する場合に
はロジン、ダンマー等の溶剤に対する溶解性の良好なも
のが望ましい。本発明における平滑面とは、平滑な表面
を有するガラス、金棒、木材０紙、ゴム、プラスチ。Materials that melt and flow at relatively low temperatures, such as polyamide, dicyclohexyl phthalate (V-), and solid plasticizers such as dimethyl isophthalate, may be used alone or in combination of two or more. Preferably, the thermoplastic plastic used in the mold is selected to have a lower melting point than the thermoplastic plastic forming the foam. If a material with a melting point higher than that of the thermoplastic butysteak is used, there is a risk that the mold will be significantly deformed when it comes into contact with the melt of the material. When the molding material contains monomers or solvents, it is desirable to use solvent-resistant polyethylene, polypropylene, etc. as the heat-melting material. Those having good solubility in solvents such as rosin and dammar are desirable. In the present invention, the smooth surface refers to glass, metal rod, wood, paper, rubber, and plastic that have a smooth surface.
り等の可撓性もしくけ非可撓性の固体表面をいう。A solid surface that can be flexible or non-flexible.
本発明において、熱溶融物層を型隨上に存在ぜしめるＫ
は、該熱溶融性材料の溶融物、溶液、エマルジ冒ン９分
散液等をスプレー、刷毛塗シ、０−ルコーター含浸等に
よυ塗布したシ、該熱溶融性材料の粉体をスプレー等に
より型面に付着せしめ、或いは、該熱溶融性材料のフィ
ルムを型面上に被覆する。即ち本発明を実施するには熱
可ｍ性プラスチーク発泡体からなる成形型の型面上に熱
溶融性材料の溶融物あるいは溶液、エマルジ冒ン。In the present invention, the K
A melt, solution, emulsion dispersion, etc. of the heat-fusible material is coated by spraying, brush coating, 0-ru coater impregnation, etc., and a powder of the heat-fusible material is sprayed, etc. or a film of the heat-fusible material is coated on the mold surface. That is, to carry out the present invention, a melt, solution, or emulsion of a thermofusible material is poured onto the surface of a mold made of thermoplastic plastic foam.
分散液等ラスプレー、刷毛塗り、ロールコーティング、
含浸等により塗布する。型面の一部のみが平滑性を要求
される場合にはその部分にのみ該溶融物あるいは溶液、
エマルジ璽ン９分散液等を塗布してもよい。溶融物を塗
布した場合には該溶融物が半流動状態にあるうちにガラ
ス面、金属面等の平滑面で押圧する。熱溶融性材料の溶
液、エマルジ■ン９分散液等を型面上に塗布した場合に
は乾燥させ、その後加熱して熱溶融性材料を半流動状態
におき、この状態を維持してガラス面、金属面等の平滑
面で押圧するかまたは該平滑面で押圧しつつ加熱して該
熱溶融性材料を半流動状態におく。Dispersion liquid spraying, brush coating, roll coating, etc.
Apply by impregnation etc. If only a part of the mold surface is required to be smooth, apply the melt or solution to that part only.
You may apply an emulsion bottle 9 dispersion or the like. When a molten material is applied, it is pressed with a smooth surface such as a glass surface or a metal surface while the molten material is in a semi-fluid state. When a solution of a heat-fusible material, an emulsion 9 dispersion, etc. is applied to the mold surface, it is dried, then heated to bring the heat-fusible material into a semi-fluid state, and this state is maintained until the glass surface is coated. The heat-fusible material is brought into a semi-fluid state by being pressed against a smooth surface such as a metal surface, or by heating while being pressed against the smooth surface.
更に本発明を実施するＫは粉状の熱溶融性材料を型面上
に撒布したりフィルム状の熱溶融性材料を型面上に被覆
した後加熱して半流動状態においてもよい。この場合も
平滑面による押圧は加熱とともに、あるいけ加熱後に行
われる。Further, K for carrying out the present invention may be made by spreading a powdery heat-fusible material onto the mold surface or by coating the mold surface with a film-like heat-fusible material and then heating it to bring it into a semi-fluid state. In this case as well, the pressing by the smooth surface is performed at the same time as heating, or after heating.
また本発明を実施するには上記熱溶融性材料の溶融物、
溶液、エマルジッン２分散液、粉末、フィルム等を平滑
面側に塗布、撒布、あるいは被覆してもよい。Further, in carrying out the present invention, a melt of the above-mentioned heat-melting material,
A solution, Emulgin 2 dispersion, powder, film, etc. may be applied, sprinkled, or covered on the smooth surface side.
このようにして熱溶融性材料の半流動状態を示す溶融物
層を平滑面で押圧し、この状態で更に該溶融物を固化せ
しめてから該平滑面を離脱させるか、あるいは押圧して
すぐに該平滑面を離脱させてもよい。該平滑面には必要
とあらは離型剤等を塗布したυテフロン加工を施したシ
、離型紙を貼着しておいてもよい。In this way, the molten layer of the heat-fusible material exhibiting a semi-fluid state is pressed against the smooth surface, the molten material is further solidified in this state, and then the smooth surface is removed, or immediately after the pressing. The smooth surface may be removed. If necessary, Teflon-treated paper coated with a release agent or the like may be pasted on the smooth surface.
本発明の成形型はガラス繊維強化プラスチークや鋳物砂
とバインダーの混合物等の成形材料を用いることＫより
成形物や鋳型を成形し、その後加熱により軟化収縮ある
いは燃焼消失せしめるかまたは適当な溶剤を使用して溶
解せしめることによりアンダーカート部を有する成形物
でも容易に離型させることが出来る。The mold of the present invention uses a molding material such as glass fiber-reinforced plastic teak or a mixture of molding sand and a binder.A molded article or mold is formed from the material, and then the mold is softened and shrunk by heating or burnt out, or a suitable solvent is used. By using it and melting it, even molded products having an undercart part can be easily released from the mold.
熱可塑性プラスチ・り発泡体からなる成形型の型面に熱
溶融性材料の溶融物を塗布し、該溶融物の半流動状態で
平滑面を押圧すると該溶融物表面は該平滑面によって平
滑化せしめらねる。この状態のまま該溶融物を固化する
とともに平滑面を離脱させると該熱溶融性材料からなる
平滑な型面が形成される。When a melt of a thermofusible material is applied to the surface of a mold made of thermoplastic plastic foam and the smooth surface is pressed in a semi-fluid state, the surface of the melt becomes smooth. Seshimeraneru. When the molten material is solidified in this state and the smooth surface is separated, a smooth mold surface made of the heat-fusible material is formed.
したがって本発明は熱可塑性プラスチーク発泡体からな
る成形型の型面を簡単な手段で平滑化させることが出来
る。Therefore, according to the present invention, the mold surface of a mold made of thermoplastic plastic foam can be smoothed by a simple means.
実施例１゜
第１図〜第４図に実施例１を示す。第１図に示す成形基
型（１）はビーズ成形されたポリエチレン発泡体からな
シ、該成形基型（１）の型面〔２）上に第２図に示すよ
うにパラフィン９０重量部、ポリエチレン１０重量部の
混合物からなる熱溶融性材料Ｃ８）を９０℃に加熱して
溶融しく溶融物粘度１２０ｃｐｓ、）スデＶ−ガン（４
）によって塗布する。このようにして型面（２）上に形
成された溶融物層（８１Ａ上に平滑面（５）Ａを有する
ステンレス板（５）を９０℃に加熱して第８図に示すよ
うに抑圧する。該溶融物層「８）Ａが冷却固化した後読
ステンレス板〔ωを除去すると第４図に示すような平滑
な型面（２）Ａを有する成形型〔１）Ａが得られる。Example 1 Example 1 is shown in FIGS. 1 to 4. The molding base mold (1) shown in FIG. 1 is made of bead-molded polyethylene foam, and 90 parts by weight of paraffin is placed on the mold surface [2] of the molding base mold (1) as shown in FIG. Heat-melt material C8) consisting of a mixture of 10 parts by weight of polyethylene was heated to 90°C and melted, the viscosity of the melt was 120 cps, Sude V-gun (4)
). The stainless steel plate (5) having the smooth surface (5) A on the molten layer (81A) thus formed on the mold surface (2) is heated to 90°C and pressed as shown in Figure 8. When the post-reading stainless steel plate [ω] in which the melt layer 8) A is cooled and solidified is removed, a mold [1) A having a smooth mold surface (2) A as shown in FIG. 4 is obtained.
実施例２
実施例１において熱溶融性材料として用いた混合物を押
出成形機にて０．２ｆｆ厚さのフィルムに成形したもの
をフィルム状熱溶融性材料として用い該フィルム状熱溶
融性材料を成形基型（１）の型面（２）上におき９０°
ＣＫ加熱して半流動状態においた後実施例１と同様にし
てステンレス板（５）で押圧することにより実施例と同
様な平滑な型面〔２）Ａを有する成形型ａ）Ａを得る。Example 2 The mixture used as the heat-fusible material in Example 1 was molded into a film with a thickness of 0.2 ff using an extruder, and the film-like hot-fusible material was molded using the mixture as a film-like hot-fusible material. Place it on the mold surface (2) of the base mold (1) at 90°
After heating CK to a semi-fluid state, it is pressed with a stainless steel plate (5) in the same manner as in Example 1 to obtain a mold a) A having a smooth mold surface [2) A similar to that in Example 1.
実施例８゜
第５図〜第９図には実施例８が示される。第５図におい
て（至）は表面が、テフロン化工した平滑面（至）Ａで
ある鋳鉄板であり、該鋳鉄板（至）の平滑面（至）Ａ上
にはパラフィン７０重量部、ロジン１０重量部、エチレ
ン−酢敵ビニル共重合体２０重量部からなる熱溶融性材
料の粉末側を第６図に示すように撒布する。該粉末Ｕ撒
布層の上からポリエチレン発泡体からなる成形基型αη
を型面（２）を下にして重合し、更に該成形基型αυの
上には圧締物００を載置して９５〜１００°Ｃの温度に
調節された炉中に５分入れる。かくして該粉末口撒布層
は溶融して半流動状態となシ成形基型（ロ）の型面＠に
融着する。該鋳鉄板（至）、成形基型（６）、および圧
締物α０の積重ねたものを炉から取出して冷却した後、
圧締物α０を取除いた後に鋳鉄板（至）から成形基型α
ηを剥離すれば第９図に示すように該溶融性材料からな
る平滑な型面（２）Ａを有する成形型α１）Ａを得る。Example 8 Example 8 is shown in FIGS. 5-9. In FIG. 5, (to) is a cast iron plate whose surface is a smooth surface (to) A treated with Teflon, and on the smooth surface (to) A of the cast iron plate (to), 70 parts by weight of paraffin and 10 parts by weight of rosin are coated. The powder side of a heat-melting material consisting of 20 parts by weight of ethylene-vinyl acetate copolymer is spread as shown in FIG. A molding base αη made of polyethylene foam is placed on top of the powder U-spreading layer.
was polymerized with the mold surface (2) facing down, and the compacted material 00 was placed on top of the molding base mold αυ and placed in a furnace adjusted to a temperature of 95 to 100° C. for 5 minutes. In this way, the powder spread layer is melted and fused to the mold surface of the molding base mold (b) in a semi-fluid state. After taking out the stacked cast iron plate (to), molding base mold (6), and compaction material α0 from the furnace and cooling it,
After removing the compaction α0, the molding base α is made from the cast iron plate (to).
When η is peeled off, a mold α1)A having a smooth mold surface (2)A made of the meltable material is obtained as shown in FIG.
実施例先
実施例８の熱溶融性材料粉末ａ３に代えてパラフィン９
９．５重量部、シリコン樹脂０．５重量部からなる熱溶
融性材料の粉末を用い、鋳鉄板（ハ）に代えて無処理の
平滑面を有するアルミニウム板を用いて実施例８と同様
な平滑な型面を有する成形型を得る。Paraffin 9 was used in place of the heat-melting material powder a3 in Example 8.
The same procedure as in Example 8 was made using powder of a heat-fusible material consisting of 9.5 parts by weight and 0.5 parts by weight of silicone resin, and using an untreated aluminum plate with a smooth surface in place of the cast iron plate (c). A mold having a smooth mold surface is obtained.
実施例５゜
実施例１〜４によシ作成した成形型（１）Ａ、α１）Ａ
け第１０図に示すように鋳物砂によって形成された鋳型
（７１内に内挿され、アルミニウムの溶融物（８１を注
型して鋳物を製造する。得られた鋳物は成形型ｒｌ）Ａ
、α１）Ａの型面（２）Ａ 、 α３Ａに接触した部分
は完全に平滑になり、成形型〔１）Ａ、αηＡの型面（
２］Ａ 。Example 5゜Molds prepared according to Examples 1 to 4 (1) A, α1) A
As shown in FIG. 10, the mold is inserted into a mold (71) formed of foundry sand, and the molten aluminum (81) is cast to produce a casting.The resulting casting is a mold rl).
, α1) A mold surface (2) A , the part in contact with α3A becomes completely smooth, and the mold surface of mold [1) A, αηA (
2]A.
Ｑ２Ａ以外の部分に接触した部分は発泡体の凹凸に帰因
する凹凸が形成されている。The portion that came into contact with the portion other than Q2A has unevenness due to the unevenness of the foam.
第１図〜第４図は本発明の実施例１を示すものであり、
第１図は成形基型斜視図、第２図は熱溶・照性材料の塗
布状顔面、第８図は平滑面を有するステンレス板を押圧
した状態の正面図、第４図は成形型正面図、第５図〜第
９図は本発明の実施例８を示すものであり、第６図は鋳
鉄板正面図、第６図は熱溶融性材料の粉末を撒布した状
態の正面図、第７図は成形基型を重合した状態の正面図
、第８図は成形基型上に圧締物を載置した状部Ｏ正面図
、第９図は成形型斜視図、第１０図は本発明の実施例５
を示すものであシ、鋳型にアルミニウムの溶融物を注型
した状態の断面図である。
図中、ｒｌ）・・・・成形基型、（８）Ａ・・・・熱溶
融性材料の溶融物層、ｒ５）・・・−ステンレス板、（
５）Ａ・・・・平滑面、（至）・・・・鋳鉄板、α５Ａ
・・・・平滑面、偏・・・・熱溶融性材料の粉末、αの
・・・・成形基型特許出願人 名古屋油化株式会社
″ｊｒＪ１ｅ２
才 ２ 図
才 ３ ロ
ブ ４ 口
弁 ５ 口
牙 ６ 口
２ ７ 図
牙 ９ 口
計 １０ 口
手続補正書
２、発明の名称
住所 愛知県東海市南柴田町ホの割２１３番地の５名称
名古屋油化株式会社
代表取締役堀木消之助
４、代理人
〒４６７
住所 名古屋市瑞穂区弥富町月見ケ丘３２番地６、補正
により増加する発明の数
８・補正の内容
１、第５頁第７行
「金棒」を［金属」に補正する。
２、第５頁第１１行〜第１２行
［ロールコータ−含浸等」を「ロールコーター−゛含浸
等」に補正する。
３、第９頁第１２行
「テフロン化工」を「テフロン加工」に補正する以上1 to 4 show Example 1 of the present invention,
Figure 1 is a perspective view of the molding base, Figure 2 is the face coated with thermofusible/luminescent material, Figure 8 is a front view of the pressed stainless steel plate with a smooth surface, and Figure 4 is the front of the mold. Embodiment 8 of the present invention is shown in FIGS. 5 to 9, in which FIG. 6 is a front view of a cast iron plate, FIG. Figure 7 is a front view of the molded base in a superimposed state, Figure 8 is a front view of the shaped part O with the compacted material placed on the molded base, Figure 9 is a perspective view of the mold, and Figure 10 is the main body. Example 5 of the invention
This is a cross-sectional view of a state in which molten aluminum is cast into a mold. In the figure, rl)... Molten base mold, (8) A... Melt layer of heat-fusible material, r5)... - Stainless steel plate, (
5) A...Smooth surface, (to)...Cast iron plate, α5A
... Smooth surface, polarized ... Powder of thermofusible material, α ... Molding base patent applicant Nagoya Yuka Co., Ltd. 6 Mouth 2 7 Illustration 9 Account 10 Oral procedure amendment 2, name of invention Address 213 Ho-no-wari, Minamishibata-cho, Tokai City, Aichi Prefecture 5 Name Nagoya Yuka Co., Ltd. Representative Director Suenosuke Horiki 4, Agent 〒 467 Address: 32-6 Tsukimigaoka, Yatomi-cho, Mizuho-ku, Nagoya Number of inventions increased by amendment 8 Contents of amendment 1, page 5, line 7, ``gold bar'' is amended to ``metal''. 2. On page 5, lines 11 and 12, [roll coater - impregnation, etc.] is corrected to "roll coater - impregnation, etc.". 3.Page 9, line 12, "Teflon chemical processing" is corrected to "Teflon processing"
Claims (1)
熱溶融性材料の溶融物層を存在せしめ、該溶融物層の半
流動状態で平滑面で押圧し冷却して該溶融物層を固化せ
しめることを特徴とする成形型の製造方法A molten layer of a heat-melting material is placed on the mold surface of a mold made of thermoplastic foam, and the molten layer is pressed against a smooth surface in a semi-fluid state and cooled to solidify the molten layer. A method for manufacturing a mold characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4575587A JPS63212037A (en) | 1987-02-28 | 1987-02-28 | Production of molding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4575587A JPS63212037A (en) | 1987-02-28 | 1987-02-28 | Production of molding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63212037A true JPS63212037A (en) | 1988-09-05 |
Family
ID=12728113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4575587A Pending JPS63212037A (en) | 1987-02-28 | 1987-02-28 | Production of molding tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63212037A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496458A (en) * | 1972-03-07 | 1974-01-21 |
-
1987
- 1987-02-28 JP JP4575587A patent/JPS63212037A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496458A (en) * | 1972-03-07 | 1974-01-21 |
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