JPS60141524A - Method of molding plastic - Google Patents

Method of molding plastic

Info

Publication number
JPS60141524A
JPS60141524A JP24597483A JP24597483A JPS60141524A JP S60141524 A JPS60141524 A JP S60141524A JP 24597483 A JP24597483 A JP 24597483A JP 24597483 A JP24597483 A JP 24597483A JP S60141524 A JPS60141524 A JP S60141524A
Authority
JP
Japan
Prior art keywords
plastic
mold
molded product
force
heated
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
JP24597483A
Other languages
Japanese (ja)
Inventor
Susumu Ogiwara
荻原　進
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.)
Aida Engineering Ltd
Original Assignee
Aida Engineering Ltd
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 Aida Engineering Ltd filed Critical Aida Engineering Ltd
Priority to JP24597483A priority Critical patent/JPS60141524A/en
Publication of JPS60141524A publication Critical patent/JPS60141524A/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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/78—Moulding material on one side only of the preformed part
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
    • B29C43/184—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould shaped by the compression of the material during moulding
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • 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
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Abstract

PURPOSE:To mold an item having a beautiful appearance and a smooth surface, by placing a plastic, which consists of an inexpensive material and has been melted, on a quality plastic that has been heated to its softening temperature. CONSTITUTION:A first plastic 12 that will be used as the surface material of the desired molded item 1 consists of a quality plastic such as ABS resin or the like, is heated to its softening temperature of 140 deg.C, and is put between a bottom force 2 and a plate holder 10. Then a second plastic 13 that consists of an inexpensive nylon having glass fibres therein is melted by heating it to about 280- 290 deg.C and is put on the first plastic 12. Then a top force 5 is lowered, and a plate holder 6 holds the periphery of the first plastic 12 under a certain force. Subsequently, the top force 5 is lowered to its lower limit against the upward energized force of a piston 8, and a punch 7 cooperates with a die 3 of a bottom force 2 to laminate the first and second plastics 12, 13 to mold the item 1.

Description

【発明の詳細な説明】 本発明は成形品の表面を滑かにするだめに用いて好適な
プラスチックの成形方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plastic molding method suitable for use in smoothing the surface of a molded product.

従来、プラスチックを加圧成形により成形品を生産する
場合、成形品にボス或はリブなど抜雑な形状の突出部分
を形成させるためにはプラスチックを溶融係１度に加熱
し金型上に一定量を射出し加圧成形していた。ところが
金べ１１に接した部分は冷却され硬化するため成形中に
金型−トに流れる途中で硬化した部分が縞模様となるい
わゆる冷却マーク或は７０−マークが成形されて残り、
表面に塗装を施してもこれらのマークが表われ外観を害
するという欠点があった。また成形品の強度を増加する
ためにガラス繊即、などの強化材を混入したプラスチッ
クから成形すると強化旧が表面に表われ同様に外観を害
するという欠点があった。これらの欠点を除くために一
毬熱硬化性の膨脂を加１−１成形した後、上型を上昇さ
せ成形品の表面にポリウレタンなどの熱り塑性樹脂を供
給し再加圧して平滑な表面をうるインモールドコープイ
ンク成形方法があるが、操作が面倒で多くの加工時間を
要し生産能率が悪いという欠点があった。Conventionally, when producing molded products by pressure molding plastics, in order to form rough-shaped protrusions such as bosses or ribs on the molded products, the plastic is heated to a melting temperature of 1 degree and then placed on the mold at a constant temperature. It was injected and pressure molded. However, since the part in contact with the metal plate 11 is cooled and hardened, the hardened part remains as it flows into the mold during molding, forming a striped pattern called cooling marks or 70-marks.
Even if the surface was painted, these marks would appear and spoil the appearance. Furthermore, when molded from plastic mixed with a reinforcing material such as glass fiber to increase the strength of the molded product, the reinforcing material appears on the surface, which also has the disadvantage of impairing the appearance. In order to eliminate these drawbacks, after molding the thermosetting expanded fat in 1-1 molding, the upper mold is raised and a thermoplastic resin such as polyurethane is supplied to the surface of the molded product, and pressure is applied again to make it smooth. There is an in-mold cope ink molding method that coats the surface, but it has the drawbacks of being cumbersome to operate, requiring a lot of processing time, and having low production efficiency.

本発明の目的はこれらの欠点を除き、成形品の表面とな
るプラスチックと裏側或は内側となるプラスチックとを
重ね合せて加圧成形することにより、表面が平滑で外観
が美しく、加工時間が短縮でき、かつ裏側或は内側のプ
ラスチックは安価なものを使用して成形品の価格低減が
できるプラスチックの成形方法を枠供することにある。The purpose of the present invention is to eliminate these drawbacks and to create a molded product with a smooth surface, beautiful appearance, and reduced processing time by overlapping and press-molding the plastic that will be the surface of the molded product and the plastic that will be the back or inside of the molded product. The object of the present invention is to provide a plastic molding method that can reduce the cost of the molded product by using inexpensive plastic on the back side or inside.

以下本発明の実施例について図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.

０′８］　１ｚｉにおいて、成形品（１）の加圧成形用
金型の構造の一例を示している。下型（２）には成形品
（■）の表面側の形状を有する四部を形成したグイ（３
）が固定されている。下型（２）の上向外周部には上型
（５）の板弁え（６）の下部外周と嵌合する段部（４）
が設けられている。上型（５）にはグイ（３）と対向し
、これと協働して成形品（１）の裏側を成形するだめの
ポンチ（７）が固定されている。要すればポンチ（７）
にはボス或はリブなどの四部が設けられる。ポンチ（７
）の手下方向の中央部外周に（ｄ、ピストン（８）が設
けられている。ポンチ（７）の外径部に昇降自在に適合
している板弁え（６）にはシリンダ部（９）が形成され
、これにポンチ（力のピストン（８）が昇降自在に適合
している３、シリンダ部（９）のビスＩ・ン（８）の下
側及び＋側のノリング室に夫々一定圧力のエアを給排す
るボー１−　＋１０）及び０１）が設けられている。下
型（２）はプレスのボルスタ（図示せず）に、上型（５
）　ｉニブレスのスライド（図示せず）に取りつけられ
て使用される。0'8] In 1zi, an example of the structure of a pressure molding die for molded product (1) is shown. The lower mold (2) has a guide (3) formed into four parts having the shape of the surface side of the molded product (■).
) is fixed. The upper outer periphery of the lower mold (2) has a stepped portion (4) that fits with the lower outer periphery of the plate valve (6) of the upper mold (5).
is provided. A blank punch (7) is fixed to the upper die (5), facing the gooey (3) and cooperating with it to form the back side of the molded product (1). Punch (7)
There are four parts such as bosses or ribs. Punch (7)
) is provided with a piston (8) on the outer periphery of the central part (d) of the punch (7). ) is formed, and a punch (a force piston (8) is fitted to this so that it can be raised and lowered freely) is fixed in the knwelling chambers on the lower side and + side of the screw I/n (8) of the cylinder part (9), respectively. Bows 1-+10) and 01) for supplying and discharging pressurized air are provided. The lower die (2) is attached to the press bolster (not shown) and the upper die (5
) It is used by being attached to the slide (not shown) of the i-nibless.

次に作用について述べる。第１図においてイｊ半分は上
型（５）がその板弁え（６）にボー１−　（１０１から
一定圧力のエアが供給され下降限にある状態で下降して
きて、下型（２）に板弁え（６）が接した状態を示し、
ノｉｐ半分は上型（５）が下降限にある状態を示す。先
づ上型（５）が上昇限近傍にあるとき、下型（２）の上
面には軟化温度に加熱された第１のプラスチック（１２
）とその上に積み重ねて溶融（Ｗ１１度に加熱され／こ
第２のグラスチ、り（１３）が供給される。第１のグラ
スチック（１２）は成形品（１）の表面となるもので外
観を美しくするためにＡＢＳなどの上質のプラスチック
を用い１・４０°Ｃ程度の軟化温度に加熱されている。Next, we will discuss the effect. In Fig. 1, the upper mold (5) descends to its plate valve (6) at the lower limit due to constant pressure air being supplied from the bow 1- (101), and the lower mold (2) shows the state in which the plate valve (6) is in contact with the
Noip half indicates the state where the upper die (5) is at the lower limit. First, when the upper mold (5) is near the upper limit, the upper surface of the lower mold (2) is covered with the first plastic (12
) and is stacked on top of it and melted (heated to 11 degrees W) to supply the second glass stick (13). The first glass stick (12) is the one that will become the surface of the molded product (1). To make it look beautiful, it is made of high-quality plastic such as ABS and heated to a softening temperature of about 1.40°C.

加〃１温度は成形品（１）の曲げの程度に応じて若干上
下させる。また第２のプラスチック（１３）は成形品（
１）の裏側となるものでナイロン樹脂にガラス繊維など
の強化相を入れたグラスチックを用い、２８０°〜２９
０’Ｃ程度の溶融温度に加熱されている。ガラス繊維な
どが４０係程度以上混入された場合は加熱後針などで突
き刺して供給することができるが、プラスチックだけの
場合は射出により供給する。成形品（１）の裏側には通
常ボス或はリブなどが設けられることが多く、成形品の
隅々首でグラスチックが行き渡るように溶融温度に加熱
し流れを良くしている。第１及び第２のグラスチック（
＋２）（１３）が供給されると上型（５）は下降し板弁
え（（ｊ）により第１のプラスチック（員の外周部を一
定の力で押える。The heating temperature is slightly increased or decreased depending on the degree of bending of the molded product (1). In addition, the second plastic (13) is a molded product (
For the back side of 1), we use glasstic, which is a nylon resin with a reinforcing phase such as glass fiber, at 280° to 29°.
It is heated to a melting temperature of about 0'C. If glass fiber or the like is mixed in at a rate of about 40% or more, it can be supplied by piercing it with a needle after heating, but if it is only plastic, it can be supplied by injection. Usually, a boss or rib is provided on the back side of the molded product (1), and the plastic is heated to a melting temperature so that it spreads throughout the neck of the molded product to improve its flow. The first and second glass sticks (
+2) When (13) is supplied, the upper die (5) descends and presses the outer periphery of the first plastic member (j) with a constant force.

それ以上押え込まないために板弁え（Ｇ）は下型（２）
の段部（４）に描接する。続いて上型（５）がピストン
（８）に受ける上向の旧勢力に抗して下降限寸で下降し
、パンチ（７）は下型（２）のグイ（３）と協働して第
１及び第２のプラスチック（１２）　（１３）を成形品
（１）として完成するこの間仮押え（６）はボー）　（
１０）から供給されだ用縮エアにより一定の力で下型（
２）に向けて旬勢され、成形されるプラスチック（１２
）　（１３）の逃げを押え成形品−）の形状を良好に維
持させると共に、余分のイ１料を金型外へはみ出させる
。上型（５）は成形品（１）の硬化する時間下降限に停
止した後、板押え（Ｇ）のボート（１０）から排気しボ
ー１−（ＩＩ）に給気して板押え（Ｇ）を上向に付勢し
同時に上昇する。In order not to press it any further, the plate valve (G) is the lower mold (2).
It is drawn and tangent to the stepped part (4) of. Next, the upper die (5) moves down to its lower limit against the upward force exerted on the piston (8), and the punch (7) cooperates with the guide (3) of the lower die (2). While completing the first and second plastics (12) and (13) as a molded product (1), the temporary presser (6) is pressed (
10) The lower mold (
2) Plastics (12
) To suppress the escape of (13), maintain the shape of the molded product (-) well, and allow excess A1 charge to protrude out of the mold. After the upper mold (5) stops at the lower limit of the time for curing the molded product (1), it exhausts air from the boat (10) of the plate holder (G), supplies air to the boat 1-(II), and then presses the plate holder (G). ) is forced upward and rises at the same time.

第２図において、成形品（１）の両面を円滑にする必要
がある場合の下型（２）上へ供給する状態を示している
。この場合は下型（２）土へ第１のプラスチック（１２
）、第２のプラスチック（１３）を供給した後、その」
二に更に第１のプラスチック（１２）を載せ以下前述と
同様に成形される。第１のプラスチック（１２）は板状
で軟化温度から曲げ加工されるのでダイ（３）及びパン
チ（７）の表面によく馴染み平滑な良い表面が得られる
。また第１のプラスチック（１２）に所望の色素を混入
すれば表面の塗装を省略することもできる。FIG. 2 shows the state in which the molded product (1) is fed onto the lower mold (2) when both surfaces of the molded product (1) need to be smoothed. In this case, the first plastic (12
), after supplying the second plastic (13),
The first plastic (12) is then placed on top of the second piece and molded in the same manner as described above. The first plastic (12) is plate-shaped and is bent at a softening temperature, so that it fits well on the surfaces of the die (3) and punch (7) and has a smooth and smooth surface. Moreover, if a desired pigment is mixed into the first plastic (12), painting of the surface can be omitted.

第２のプラスチック０３）は安価な樹脂とし、安価な繊
維の混入を多くし樹脂の量を減少させるなどにより成形
品（１）の価格の低減が可能である。The price of the molded product (1) can be reduced by using an inexpensive resin as the second plastic 03), increasing the amount of inexpensive fiber mixed in, and reducing the amount of resin.

以上の説明から明らかなように本発明によれば、成形品
の表面を平ｌ；゛１とし美しい外観かえられ、一度の成
形で完成するので成形時間が短縮され生産が能率的とな
り、裏側或は内側のプラスチック及び繊維を安価とする
ことにより安価な成形品かえられ、色素の混入により塗
装を省略できるなど、実用上の効果と利点は極めて大き
い。As is clear from the above description, according to the present invention, the surface of the molded product can be flattened and the appearance can be changed to a beautiful appearance.Since the molded product can be completed in one molding, the molding time is shortened, production is efficient, and the back side or It has extremely great practical effects and advantages, such as cheaper molded products because the inner plastic and fibers are cheaper, and painting can be omitted due to the inclusion of pigments.

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

第１図は実施例を行なうだめの金型の縦断面図第２図は
両面を円ｆ’ｒ′ｉとする場合の要部縦断面はｊである
。 １は成形品、２は下型、３はグイ、ｌＩは段部、５は上
型、６は板押え、７はポンチ、８はピストン、９はシリ
ンダ部、ＩＯはボート、１１はボート、］２は第１のプ
ラスチック、１３は第２のプラスチック である。 特許出願人　アイダエンジニアリング株式会社代表者　
会　１）啓之助 手続補正書（自発） ２　発明の名称　プラスチックの成形方法３　補正をす
る者 事件との関係　特許出願人 住　所　〒２２９　神奈川県相模原市大山町２番１０号
４　補正の対象 明細書の発明の詳細な説明 別紙 明細書の発明の詳細な説明の欄を下記に示す通に旧正し
１す。 第２頁第３行目 １−射出」とあるのを「供給ｊと訂正し丑す。 ２　第２頁第４行目から第５行目にかけて［−金型に接
した部分は冷却され硬化するため」とあるのを削除し丑
す。 ３、第２頁第５行目に「金型上に−ｊとあるの全１金型
内を」と訂正し寸す。 第２頁第６行目に１−硬化し」とちるのを−１−冷却さ
れ」と訂正し寸す０ ５　第２頁第１３行１」に１−一耳熱硬化性の膨脂全と
あるのを削除する。 第５頁第８行目にｊ１４０”にＪとあるのをに１０°Ｇ
」と訂正し１ず。 ７　第５頁第１６行目に「射出」とあるのを「押出機」
と訂正します。 特許出願人　アイダエンジニアリング株式会社代表者　
会　１）啓之助FIG. 1 is a longitudinal cross-sectional view of a mold for carrying out an embodiment, and FIG. 2 is a longitudinal cross-section of a main part of the mold when both sides are circles f'r'i. 1 is a molded product, 2 is a lower mold, 3 is a guide, lI is a step, 5 is an upper mold, 6 is a plate holder, 7 is a punch, 8 is a piston, 9 is a cylinder part, IO is a boat, 11 is a boat, ]2 is the first plastic, and 13 is the second plastic. Patent applicant Representative of AIDA ENGINEERING Co., Ltd.
1) Keinosuke procedural amendment (voluntary) 2 Title of the invention Plastic molding method 3 Relationship to the case of the person making the amendment Address of the patent applicant 4-2-10 Oyama-cho, Sagamihara-shi, Kanagawa 229 Details subject to amendment The Detailed Description of the Invention column in the attached specification has been corrected as shown below. 2, page 2, line 3, 1-injection'' has been corrected to ``supply j.'' 2. From line 4 to line 5 of page 2, the part in contact with the mold is cooled and hardened. I have deleted the text that says, ``In order to do so.'' 3. On the 5th line of the 2nd page, amend it to read "-j on the mold, all within one mold." In the 2nd page, line 6, the words 1-hardened are corrected to 1-cooled. Delete the. On the 5th page, 8th line, there is a J140", which means 10°G.
” I corrected myself. 7 The word “injection” on page 5, line 16 is “extruder”
I will correct it. Patent applicant Representative of AIDA ENGINEERING Co., Ltd.
Meeting 1) Keinosuke

Claims (1)

【特許請求の範囲】[Claims] 成形品の表面となる第１のプラスチ、りを軟化７晶度に
加熱し、前記成形品の裏側或は中側となる第２のプラス
チックを溶融温度に加熱し、これらの第１及び第２のプ
ラスチックを重ね合ぜて加圧成形することを特徴とする
グラスチックの成形方法。The first plastic, which will be the surface of the molded product, is heated to a softening temperature of 7, and the second plastic, which will be the back or middle side of the molded product, is heated to a melting temperature. A plastic molding method characterized by layering plastics and molding them under pressure.
JP24597483A 1983-12-28 1983-12-28 Method of molding plastic Pending JPS60141524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24597483A JPS60141524A (en) 1983-12-28 1983-12-28 Method of molding plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24597483A JPS60141524A (en) 1983-12-28 1983-12-28 Method of molding plastic

Publications (1)

Publication Number Publication Date
JPS60141524A true JPS60141524A (en) 1985-07-26

Family

ID=17141598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24597483A Pending JPS60141524A (en) 1983-12-28 1983-12-28 Method of molding plastic

Country Status (1)

Country Link
JP (1) JPS60141524A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264140A2 (en) * 1986-10-17 1988-04-20 Aisin Seiki Kabushiki Kaisha An outer door handle
EP0376263A2 (en) * 1988-12-27 1990-07-04 Sumitomo Chemical Company, Limited Process and mold for producing a multilayer molded article
EP0439625A1 (en) * 1989-08-21 1991-08-07 Sumitomo Chemical Company, Limited Method of manufacturing fiber-reinforced thermoplastic resin molded product
US5178708A (en) * 1991-01-14 1993-01-12 Sumitomo Chemical Co., Ltd. Method for producing multi-layer molded article

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113864A (en) * 1977-03-16 1978-10-04 Nippon Petrochemicals Co Ltd Heat molding of packaging container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113864A (en) * 1977-03-16 1978-10-04 Nippon Petrochemicals Co Ltd Heat molding of packaging container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264140A2 (en) * 1986-10-17 1988-04-20 Aisin Seiki Kabushiki Kaisha An outer door handle
EP0376263A2 (en) * 1988-12-27 1990-07-04 Sumitomo Chemical Company, Limited Process and mold for producing a multilayer molded article
US5509990A (en) * 1988-12-27 1996-04-23 Sumitomo Chemical Company, Limited Process for producing a multilayer molded article
EP0439625A1 (en) * 1989-08-21 1991-08-07 Sumitomo Chemical Company, Limited Method of manufacturing fiber-reinforced thermoplastic resin molded product
US5275776A (en) * 1989-08-21 1994-01-04 Sumitomo Chemical Company, Limited Method for producing molded article of fiber-reinforced thermoplastic resin
US5424020A (en) * 1989-08-21 1995-06-13 Sumitomo Chemical Company, Limited Method for producing molded article of fiber-reinforced thermoplastic resin
US5178708A (en) * 1991-01-14 1993-01-12 Sumitomo Chemical Co., Ltd. Method for producing multi-layer molded article

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