JPH03210939A - Method for sticking lost foam pattern - Google Patents

Method for sticking lost foam pattern

Info

Publication number
JPH03210939A
JPH03210939A JP2006356A JP635690A JPH03210939A JP H03210939 A JPH03210939 A JP H03210939A JP 2006356 A JP2006356 A JP 2006356A JP 635690 A JP635690 A JP 635690A JP H03210939 A JPH03210939 A JP H03210939A
Authority
JP
Japan
Prior art keywords
model
pattern
sticking
hot melt
adhesive
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
Application number
JP2006356A
Other languages
Japanese (ja)
Inventor
Minoru Imai
実 今井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP2006356A priority Critical patent/JPH03210939A/en
Publication of JPH03210939A publication Critical patent/JPH03210939A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/547—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes
    • B29C66/5472—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes for making elbows or V-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/526—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by printing or by transfer from the surfaces of elements carrying the adhesive, e.g. using brushes, pads, rollers, stencils or silk screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/757—Moulds, cores, dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Coating Apparatus (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To extend time until adhesive material solidifies and to prevent the development of casting defect without defective sticking by preheating a pattern before transferring the adhesive material. CONSTITUTION:Before setting the pattern 7a to an upper mold 19, the whole pattern 7a is preheated by using an electric furnace. After heating, the pattern 7a is quickly set to the upper mold 19 and transferring is executed at hot melt transferring station. The hot melt wax 10 transferred on the sticking face 17 in the pattern 7a is held to heating condition and not easily solidified, and even in the case the work taues time until both the upper and lower molds 19, 21 are press-welded at press-welding station, the sticking performance of the hot melt wax 10 is not lowered to obtain good sticking condition in both the patterns 7a, 7b.

Description

【発明の詳細な説明】 〈産業上の利用分計〉 本発明は、消失模型鋳造法において実施される消失模型
接着工法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application> The present invention relates to a vanishing model bonding method carried out in a vanishing model casting method.

〈従来の技術〉 近年、消失模型鋳造法は、従来の砂型鋳造法に比べて、
■中空部材を製造する際に中子を必要としないこと、■
砂に粘結剤を混入しないため、砂の回収・再利用が容易
であること、■複雑形状のものにも適用可能であること
等の種々の利点を有するため、例えば、自動車用エンジ
ンの吸気マニホールド等の鋳造法として注目を集めてい
る。<Conventional technology> In recent years, the vanishing model casting method has
■No need for a core when manufacturing hollow parts;■
It has various advantages such as: sand is easy to collect and reuse because no binder is mixed into the sand, and can be applied to objects with complex shapes. It is attracting attention as a casting method for manifolds, etc.

乙の消失模型鋳造法を第３図に基づいて説明する。第３
図には消失模型鋳造法により吸気マニホールドを鋳造す
る場合の鋳造容晋内の概略構造を示しである。B's vanishing model casting method will be explained based on Fig. 3. Third
The figure shows a schematic structure inside the casting process when an intake manifold is cast by the lost model casting method.

鋳造容器１内には、得ようとする鉤造品（吸気マニホー
ルド）と同一形状の発泡ポリスチレン製の消失型２，３
が配され、消失型２．３には吸気ポートとなる空気通路
２ａ。Inside the casting container 1 are fugitive molds 2 and 3 made of expanded polystyrene having the same shape as the hook-shaped product (intake manifold) to be obtained.
is arranged, and the vanishing type 2.3 has an air passage 2a serving as an intake port.

３ａがそれぞれ形成されている。消失型２゜３には発泡
ポリスチレン製の湯口４が取付けられ、鋳造容器１内に
は錦紗５が充填されている。3a are formed respectively. A sprue 4 made of expanded polystyrene is attached to the fugitive mold 2.3, and the casting container 1 is filled with brocade 5.

乙の状態で湯口４から消失型２，３の内部に金属溶湯６
を注入すると、湯口４及び消失型２，３が順次熱分解し
て金属溶湯と置換され、消失型２，３と同形状の吸気マ
ニホールドが二個得られる。In state B, molten metal 6 is poured into the vanishing molds 2 and 3 from the sprue 4.
When injected, the sprue 4 and the dissipating molds 2 and 3 are sequentially thermally decomposed and replaced with molten metal, and two intake manifolds having the same shape as the dissipating molds 2 and 3 are obtained.

ところで、この消失模型鋳造法で複雑な形状を有する吸
気マニホールドの消失型２，３を形成する場合、この消
失型２，３を複数に分割した模型７ａ、７ｂ、８ｍ、８
ｂを作製し、模型７ａ、７ｂ及び模型８ａ、８ｂを互い
に接着して所要の消失型２，３を形成している。By the way, when forming the vanishing molds 2 and 3 of the intake manifold having a complicated shape by this vanishing model casting method, the vanishing molds 2 and 3 are divided into a plurality of models 7a, 7b, 8m, 8.
The models 7a, 7b and the models 8a, 8b are adhered to each other to form the required disappearing molds 2, 3.

模型７ｍ、７ｂ　（８ａ、８ｂ）を接着する場合、模型
７ａ（もしくは７ｂ）の接着面に接着剤を塗布する必要
がある。模型７ｍの接着面は曲面等を有する複雑な形状
になっているので、接着面への接着剤の塗布は、接着面
と同形状の転写面を有する接着剤転写プレート（転写プ
レート）を用いて行なっている。When bonding the models 7m and 7b (8a, 8b), it is necessary to apply an adhesive to the bonding surface of the model 7a (or 7b). The adhesive surface of the 7m model has a complicated shape with curved surfaces, etc., so apply adhesive to the adhesive surface using an adhesive transfer plate (transfer plate) that has a transfer surface of the same shape as the adhesive surface. I am doing it.

この転写方式の消失模型接着工法を第１図、第２図に基
づいて説明する。第１図、第２図にはその接着工法にお
ける各々の工程の概要を示しである。This transfer method vanishing model bonding method will be explained based on FIGS. 1 and 2. FIGS. 1 and 2 show an outline of each step in the adhesive method.

先ず、第１図に基づいて接着剤の塗布工程を具体的に説
明する。ホットメルトワックス１０が充填されたワック
ス槽１１内には転写シリンダ１２で上下動する転写治具
１３が備えられ、転写治具１３の上面に転写プレート１
４が転写面１５を上にして固定されている。First, the adhesive application process will be specifically explained based on FIG. A transfer jig 13 that moves up and down with a transfer cylinder 12 is provided in the wax tank 11 filled with hot melt wax 10, and a transfer plate 1 is mounted on the upper surface of the transfer jig 13.
4 is fixed with the transfer surface 15 facing upward.

ワックス槽１１にはヒータ１６が設けられ、ワックス浴
は常時１２０±５℃に保持されている。模型７ａは接着
面１７を下にして上型１９に真空吸着され、上型１９と
共にワックス槽１１の上部に位置決めされる。転写シリ
ンダ１２の駆動によりワックス浴に浸っている転写プレ
ート１４を上昇させ、転写面１５上にホットメルトワッ
クス１０を保持して転写面１５を模型７ａの接着面１７
に押し付け、ホットメルトワックス１０を接１１面１７
に塗布する。A heater 16 is provided in the wax bath 11, and the wax bath is constantly maintained at 120±5°C. The model 7a is vacuum-adsorbed to the upper mold 19 with the adhesive surface 17 facing down, and is positioned together with the upper mold 19 at the upper part of the wax tank 11. The transfer plate 14 immersed in the wax bath is raised by driving the transfer cylinder 12, the hot melt wax 10 is held on the transfer surface 15, and the transfer surface 15 is transferred to the adhesive surface 17 of the model 7a.
Press the hot melt wax 10 onto the 11 surface 17
Apply to.

上述したように、転写プレート１４を用いて模型７ａの
接着面１７にホットメルトワックス１０を塗布すること
により、一定量の接着剤を迅速に模型７ａへ塗布し得る
。As described above, by applying the hot melt wax 10 to the adhesive surface 17 of the model 7a using the transfer plate 14, a certain amount of adhesive can be quickly applied to the model 7a.

次に、第２図に基づいて模型７ａ、７ｂの接着工程を説
明する。Next, the process of bonding the models 7a and 7b will be explained based on FIG.

模型７ｂは圧着シリンダ２０で上下動する下型２１に真
空吸着されてお９、ホットメルトワックス１０が塗布さ
れた模型７ａは上型１９と共に下型２１の上部に運ばれ
て位置決めされる。圧着シリンダ２０の駆動により下型
２１を上昇させて上下両型１９．２１を圧着し、ホット
メルトワックス１０が塗布された模型７ｍの接着面１７
に模型７ｂの接着面２２を接着し消失型２を全体形成す
る。The model 7b is vacuum-adsorbed by a pressure cylinder 20 to a lower mold 21 that moves up and down 9, and the model 7a coated with hot melt wax 10 is carried together with the upper mold 19 to the upper part of the lower mold 21 and positioned. The lower die 21 is raised by the drive of the crimping cylinder 20 and both the upper and lower dies 19.21 are crimped, and the adhesive surface 17 of the model 7m coated with the hot melt wax 10 is formed.
The adhesive surface 22 of the model 7b is adhered to the adhesive surface 22 of the model 7b to form the entire disappearing mold 2.

上述したように、転写プレート１４を用いて接着剤を塗
布し、模型７ｍ、７ｂを圧着して消失型２を形成するこ
とにより、複雑な形状の消失型２であっても容易に形成
することができる。As described above, by applying adhesive using the transfer plate 14 and press-bonding the models 7m and 7b to form the fugitive mold 2, even the fugitive mold 2 with a complicated shape can be easily formed. I can do it.

〈発明が解決しようとする課題〉 ところが、前述した転写方式の接着工法にあっては、ホ
ットメルトワックス１０の転写後、上下両型１９．２１
の圧着までに、上型１９の移動、圧着シリンダ２０の上
昇の時間が必要であり、この時間は転写したホットメル
トワックス１０が固化しない時間（通常３〜５秒）内に
抑えなければならないが、従来はそれが守れず、接着不
良を起すことがしばしばあった〇 そこで、本発明は接着不良を無くして鋳造欠陥の発生を
未然に回避し得る消失模型接着工法を提供することを目
的とする。<Problems to be Solved by the Invention> However, in the above-described transfer adhesive method, after the hot melt wax 10 is transferred, both the upper and lower molds 19.21
It takes time for the upper mold 19 to move and the crimping cylinder 20 to rise before the crimping process, and this time must be kept within the time (usually 3 to 5 seconds) in which the transferred hot melt wax 10 does not solidify. In the past, this could not be adhered to, often resulting in poor adhesion. Therefore, the purpose of the present invention is to provide a vanishing model adhesion method that can eliminate poor adhesion and prevent the occurrence of casting defects. .

く課題を解決するための手段〉 前記目的を達成するために、本発明は複数に分割成形さ
れた模型の接着面に治具を介して接着剤を転写した後、
これら模型を圧着して消失型を全体形成する消失模型接
着工法において、前記接着剤を転写する前に模型を予め
加熱しておくことを特徴とする。Means for Solving the Problems> In order to achieve the above object, the present invention transfers an adhesive to the adhesive surface of a model that has been molded into multiple parts via a jig, and then
The vanishing model adhesion method in which the entire vanishing mold is formed by press-bonding these models is characterized in that the model is heated in advance before transferring the adhesive.

く作　　　用〉 前記工法によれば、模型に転写された接着剤が固化する
までの時間が延長される。Effect> According to the construction method, the time required for the adhesive transferred to the model to solidify is extended.

施　　例〉 以下本発明の一実施例を第１図、第２図を参照して説明
する。Example> An example of the present invention will be described below with reference to FIGS. 1 and 2.

本実施例では、上型１９に模型７ａをセットする前に、
該模型７ａ全体を図示しない電気炉を用いて予め加熱す
る。In this embodiment, before setting the model 7a on the upper mold 19,
The entire model 7a is preheated using an electric furnace (not shown).

加熱温度は、発泡ポリスチレン製の模型の場合、４０〜
７０℃が好適であり、４０℃未満では効果が少なく、又
７０℃を越えると模型７ａの熱変形が発生することが実
験で判明された。The heating temperature is 40~40℃ for a model made of expanded polystyrene.
Experiments have shown that a temperature of 70°C is suitable; a temperature of less than 40°C is less effective, and a temperature of more than 70°C causes thermal deformation of the model 7a.

このようにして加熱した後、模型７ａを速やかに上型１
９ヘセツトし、第１図に示したホットメルト転写ステー
シアンで転写を行えば、模型７ａの接着面１７に転写さ
れたホットメルトワックス１０は加温状態が保持されて
容易には固化せず、第２図に示した圧着ステージ璽ンに
て上下両型１９．２１を圧着するまでに作業が手間取っ
ても、ホットメルトワックス１０の接着性能（ま低下せ
ず、依ってく実 両模型７ｍ、７ｂの良好な接着状態が得られる。After heating in this way, the model 7a is immediately transferred to the upper mold 1.
When the hot melt wax 10 transferred to the adhesive surface 17 of the model 7a is maintained in a heated state and does not harden easily, Even if it takes a long time to crimp both the upper and lower molds 19.21 on the crimping stage shown in Figure 2, the adhesion performance of the hot melt wax 10 does not deteriorate, and the actual models 7m and 7b A good adhesion condition can be obtained.

なお、模型７ａを加熱する手段は電気炉に限らず、他の
加熱装置を用いても良い。また、上型１９を加熱して間
接的に模型７ａを加温しても良い。Note that the means for heating the model 7a is not limited to the electric furnace, and other heating devices may be used. Alternatively, the model 7a may be indirectly heated by heating the upper mold 19.

〈発明の効果〉 以上説明したように本発明によれば、接着剤を転写する
前に模型を予め加熱しておくようにしたので、接着剤が
固化するまでの時間の延長が図れ、依って接着不良を無
くして鋳造欠陥の発生を未然に回避することができる。<Effects of the Invention> As explained above, according to the present invention, since the model is heated in advance before transferring the adhesive, the time required for the adhesive to harden can be extended, and thus By eliminating adhesion defects, it is possible to prevent casting defects from occurring.

【図面の簡単な説明】[Brief explanation of drawings]

第１図と第２図は消失模型接着工法における塗布工程と
接着工程の断面図、第３図は消失模型鋳造法における鋳
造容器の断面図である。 また、図面中２は消失型、７ｍ、７ｂは模型、１０はホ
ットメルトワックス、１４は転写プレート、１７は接着
面である。 篤 図 第 図 第 図1 and 2 are cross-sectional views of the coating process and adhesion process in the vanishing model bonding method, and FIG. 3 is a cross-sectional view of a casting container in the vanishing model casting method. Further, in the drawing, 2 is a disappearing mold, 7m and 7b are models, 10 is hot melt wax, 14 is a transfer plate, and 17 is an adhesive surface. Atsushi diagram diagram diagram

Claims (1)

【特許請求の範囲】[Claims] 　複数に分割成形された模型の接着面に治具を介して接
着剤を転写した後、これら模型を圧着して消失型を全体
形成する消失模型接着工法において、前記接着剤を転写
する前に模型を予め加熱しておくことを特徴とする消失
模型接着工法。In the vanishing model adhesion method, in which adhesive is transferred to the adhesive surface of a model that has been molded into multiple parts via a jig, and then the models are pressed together to form the entire vanishing mold, the adhesive is transferred to the adhesive surface of the model before transferring the adhesive. A vanishing model bonding method characterized by preheating.
JP2006356A 1990-01-17 1990-01-17 Method for sticking lost foam pattern Pending JPH03210939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006356A JPH03210939A (en) 1990-01-17 1990-01-17 Method for sticking lost foam pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006356A JPH03210939A (en) 1990-01-17 1990-01-17 Method for sticking lost foam pattern

Publications (1)

Publication Number Publication Date
JPH03210939A true JPH03210939A (en) 1991-09-13

Family

ID=11636089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006356A Pending JPH03210939A (en) 1990-01-17 1990-01-17 Method for sticking lost foam pattern

Country Status (1)

Country Link
JP (1) JPH03210939A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025562C2 (en) * 2004-02-24 2005-08-26 Johannes Gerardus Van Gemert Device for mutually bonding foam parts.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025562C2 (en) * 2004-02-24 2005-08-26 Johannes Gerardus Van Gemert Device for mutually bonding foam parts.
WO2005080068A1 (en) * 2004-02-24 2005-09-01 Johannes Gerardus Van Gemert Device for glueing foam sections together

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