JPH10185483A - Manufacture of synthetic resin tank constituting member for heat exchanger - Google Patents

Manufacture of synthetic resin tank constituting member for heat exchanger

Info

Publication number
JPH10185483A
JPH10185483A JP34475196A JP34475196A JPH10185483A JP H10185483 A JPH10185483 A JP H10185483A JP 34475196 A JP34475196 A JP 34475196A JP 34475196 A JP34475196 A JP 34475196A JP H10185483 A JPH10185483 A JP H10185483A
Authority
JP
Japan
Prior art keywords
tank
mold
gas
heat exchanger
constituting member
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.)
Withdrawn
Application number
JP34475196A
Other languages
Japanese (ja)
Inventor
Satoshi Kitazaki
聡 北▲崎▼
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.)
Showa Aluminum Can Corp
Original Assignee
Showa Aluminum 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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP34475196A priority Critical patent/JPH10185483A/en
Publication of JPH10185483A publication Critical patent/JPH10185483A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/067—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a synthetic resin tank constituting member for a heat exchanger having no molding unevenness as a whole and excellent strength without necessity of removing flash after molding. SOLUTION: To mold a tank constituting member of a predetermined shape by pouring molten resin from a gate 2 in a mold 1 and drawing gas from one or a plurality of gas bleeding parts 3 at an opposite side of the gate 2, tailing of the molten resin and impurities are introduced together with the gas into a space 6 formed at the part 3 disposed at an edge of a tank constituting member molding space 5 of the mold 1. Thus, a protrusion containing them is formed at an end face of the member, and then removed from the member.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、ラジエータやイン
タークーラー等の熱交換器に用いられる合成樹脂製タン
クを構成する部材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a member constituting a synthetic resin tank used for a heat exchanger such as a radiator or an intercooler.

【０００２】[0002]

【従来の技術】この種タンク構成部材を製造する場合、
金型のゲート部から溶融樹脂を注入すると共にゲート部
の反対側におけるガス抜き部からガスを抜いて所定形状
のタンク部材を成形していた。2. Description of the Related Art When manufacturing such a tank component,
The molten resin is injected from the gate of the mold and gas is released from the gas vent on the opposite side of the gate to form a tank member having a predetermined shape.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、上記製
造方法の場合、図４に示すように、成形されたタンク構
成部材(21)のうち、金型のガス抜き部で成形された部分
(22)に通常、バリ(23)が発生した。そして、このバリ(2
3)を放置したままタンクの製造を行った場合、バリ(23)
がタンクのシール部に挟まり、タンクの密閉性を損ねる
おそれがあることから、上記成形後において、発生した
バリ(23)をすべて除去する工程が必要となり、そのた
め、この種タンクの製造効率の低下を招くこととなって
いた。また、金型のガス抜き部は、ガスは元より、樹脂
のカスや不純物がたまる所でもあるため、タンクのう
ち、この部分で成形された箇所は、タンクの他の部分に
比べて強度が弱いという問題もあった。However, in the case of the above-described manufacturing method, as shown in FIG. 4, a portion of the molded tank component (21) formed by the degassing portion of the mold.
Burr (23) usually occurred on (22). And this burr (2
When manufacturing tanks while leaving 3), burr (23)
Is likely to be caught in the seal portion of the tank, which may impair the tightness of the tank.Therefore, after the above-described molding, it is necessary to remove all generated burrs (23). Was to be invited. In addition, since the degassing part of the mold is a place where not only gas but also resin residue and impurities accumulate, the part formed in this part of the tank has a higher strength than other parts of the tank. There was also the problem of being weak.

【０００４】本発明の目的は、成形後においてバリ取り
工程を必要とせず、かつ全体として成形むらがなく、強
度的にも優れた熱交換器用合成樹脂製タンク構成部材を
得るための製造方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a manufacturing method for obtaining a synthetic resin tank component for a heat exchanger which does not require a deburring step after molding, has no molding unevenness as a whole, and is excellent in strength. To provide.

【０００５】[0005]

【課題を解決するための手段】本発明の製造方法は、金
型のゲート部から溶融樹脂を注入すると共にゲート部の
反対側における一または複数のガス抜き部からガスを抜
いて所定形状のタンク構成部材を成形するにあたり、金
型のタンク構成部材成形空間の縁部に位置するガス抜き
部に形成された空間にガスと共に溶融樹脂のカスおよび
不純物を流入させることによって、これらが含まれた突
出部をタンク構成部材の端面に形成せしめた後、突出部
をタンク構成部材から除去することを特徴とするもので
ある。According to the manufacturing method of the present invention, a molten resin is injected from a gate portion of a mold and gas is removed from one or a plurality of gas vent portions on the opposite side of the gate portion to form a tank having a predetermined shape. In molding the constituent members, the molten resin scum and impurities are caused to flow together with gas into the space formed in the gas vent portion located at the edge of the tank constituent member molding space of the mold, so that these are included in the protrusion. After the portion is formed on the end face of the tank constituent member, the protruding portion is removed from the tank constituent member.

【０００６】原料樹脂としては、ナイロン６６またはこ
れにガラスファイバーを混入したもの等が挙げられる。As a raw material resin, nylon 66 or a resin obtained by mixing glass fiber with nylon 66 can be used.

【０００７】上記突出部は、成形後における除去が容易
に行えるようにするのが好ましく、例えば、当該突出部
の基部に切り欠き等を設ければ良い。It is preferable that the protruding portion be easily removed after molding. For example, a notch or the like may be provided at the base of the protruding portion.

【０００８】[0008]

【発明の実施の形態】次に、本発明の実施形態について
図面に従って説明する。Next, embodiments of the present invention will be described with reference to the drawings.

【０００９】図１〜図３に示すように、上型(1a)と下型
(1b)よりなる金型(1) のゲート部(2) からガラスファイ
バーが混入された溶融状態のナイロン６６を注入すると
共にゲート部(2) の反対側におけるガス抜き部(3) から
ガスを抜いて所定形状のタンク構成部材(4) を成形す
る。この際、金型(1) のタンク構成部材成形空間(5) の
縁部に位置するガス抜き部(3) に形成された空間(6) に
ガスと共に上記溶融樹脂のカスおよび不純物を流入させ
ることにより、図２および図３に示すように、上記溶融
樹脂のカスおよび不純物等が含まれた突出部(7) をタン
ク構成部材(4) のフランジ部(4a)端面に形成せしめる。
そして、該突出部(7) の先端には、バリ(8) が生ずる場
合があるが、上記成形後にバリ(8) が付いた突出部(7)
をタンク構成部材(4) から除去することにより所定形状
のタンク構成部材(4) が得られる。突出部(7) は、板状
であって、その基部に対向する左右２つの切り欠き(7a)
が形成されており、突出部(7) を折るだけで該突出部
(7) 全体がタンク構成部材(4) のフランジ(4a)から簡単
に取り除かれる。そして、突出部(7) が除去された後の
タンク構成部材(4) がタンクを構成するための本来の形
状となるのである。As shown in FIGS. 1 to 3, the upper die (1a) and the lower die
A molten nylon 66 mixed with glass fiber is injected from the gate (2) of the mold (1) made of (1b), and gas is released from the gas vent (3) on the opposite side of the gate (2). Then, the tank component (4) having a predetermined shape is formed. At this time, the molten resin residue and impurities are introduced together with gas into the space (6) formed in the degassing portion (3) located at the edge of the tank component member forming space (5) of the mold (1). As a result, as shown in FIGS. 2 and 3, a projection (7) containing the molten resin residue and impurities is formed on the end face of the flange (4a) of the tank component (4).
A burr (8) may be formed at the tip of the protruding portion (7).
Is removed from the tank component (4) to obtain a tank component (4) having a predetermined shape. The protruding portion (7) is plate-shaped, and has two notches (7a) facing the base thereof.
Is formed, and only by folding the projection (7)
(7) The whole is easily removed from the flange (4a) of the tank component (4). After the protruding portion (7) is removed, the tank constituting member (4) has an original shape for constituting a tank.

【００１０】[0010]

【発明の効果】本発明は、金型のゲート部から溶融樹脂
を注入すると共にゲート部の反対側における一または複
数のガス抜き部からガスを抜いて所定形状のタンク構成
部材を成形するにあたり、金型のタンク構成部材成形空
間の縁部に位置するガス抜き部に形成された空間にガス
と共に溶融樹脂のカスおよび不純物を流入させることに
よって、これらが含まれた突出部をタンク構成部材の端
面に形成せしめた後、突出部をタンク構成部材から除去
するようにしたものである。従って、本発明によれば、
上記突出部にバリが生じても、これが突出部と共に簡単
に除去され、従来のように、別途バリ取りの必要がなく
なり、この種タンク構成部材の製造能率を高めることが
できる。また、除去される上記突出部に溶融樹脂のカス
や不純物が含まれているが、該突出部を除去すること
で、これらカス等も除去されるため、成形むらのない強
度的に優れた均質なタンク構成部材が得られる。According to the present invention, when a molten resin is injected from a gate portion of a mold and gas is removed from one or a plurality of gas vent portions on the opposite side of the gate portion, a tank component having a predetermined shape is formed. The molten resin scum and impurities are caused to flow together with the gas into the space formed in the gas vent portion located at the edge of the molding space of the tank constituent member of the mold. After that, the protruding portion is removed from the tank constituent member. Thus, according to the present invention,
Even if burrs are formed on the protruding portions, the burrs are easily removed together with the protruding portions, so that it is not necessary to remove burrs as in the related art, and the production efficiency of this kind of tank component can be increased. In addition, the protrusions to be removed contain scum and impurities of the molten resin, but by removing the protrusions, these scums and the like are also removed. A tank constituent member can be obtained.

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

【図１】本発明の製造方法を実施するための金型の正面
断面図である。FIG. 1 is a front sectional view of a mold for performing a manufacturing method of the present invention.

【図２】本発明により製造されたタンク構成部材の要部
斜視図である。FIG. 2 is a perspective view of a main part of a tank component manufactured according to the present invention.

【図３】同タンク構成部材の要部正面図である。FIG. 3 is a front view of a main part of the tank constituent member.

【図４】従来の製造方法により製造されたタンク構成部
材の部分斜視図である。FIG. 4 is a partial perspective view of a tank component manufactured by a conventional manufacturing method.

【符号の説明】[Explanation of symbols]

(1) ： 金型 (2) ： ゲート部 (3) ： ガス抜き部 (4) ： タンク構成部材 (5) ： タンク構成部材成形空間 (6) ： ガス抜き部の空間 (7) ： 突出部 (8) ： バリ (1): Mold (2): Gate (3): Gas vent (4): Tank component (5): Tank component molding space (6): Gas vent space (7): Projection (8): Bali

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 金型のゲート部から溶融樹脂を注入する
と共にゲート部の反対側における一または複数のガス抜
き部からガスを抜いて所定形状のタンク構成部材を成形
するにあたり、金型のタンク構成部材成形空間の縁部に
位置するガス抜き部に形成された空間にガスと共に溶融
樹脂のカスおよび不純物を流入させることによって、こ
れらが含まれた突出部をタンク構成部材の端面に形成せ
しめた後、突出部をタンク構成部材から除去することを
特徴とする熱交換器用合成樹脂製タンク構成部材の製造
方法。In order to form a tank member having a predetermined shape by injecting a molten resin from a gate portion of a mold and extracting gas from one or a plurality of gas vent portions on a side opposite to the gate portion, a tank of the mold is used. The molten resin scum and impurities flow into the space formed in the gas vent portion located at the edge of the component forming space, together with the gas, so that the projections containing these are formed on the end surface of the tank component. A method of manufacturing a synthetic resin tank component for a heat exchanger, wherein the protrusion is removed from the tank component.
JP34475196A 1996-12-25 1996-12-25 Manufacture of synthetic resin tank constituting member for heat exchanger Withdrawn JPH10185483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34475196A JPH10185483A (en) 1996-12-25 1996-12-25 Manufacture of synthetic resin tank constituting member for heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34475196A JPH10185483A (en) 1996-12-25 1996-12-25 Manufacture of synthetic resin tank constituting member for heat exchanger

Publications (1)

Publication Number Publication Date
JPH10185483A true JPH10185483A (en) 1998-07-14

Family

ID=18371702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34475196A Withdrawn JPH10185483A (en) 1996-12-25 1996-12-25 Manufacture of synthetic resin tank constituting member for heat exchanger

Country Status (1)

Country Link
JP (1) JPH10185483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013167431A (en) * 2012-02-17 2013-08-29 Denso Corp Tank for heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013167431A (en) * 2012-02-17 2013-08-29 Denso Corp Tank for heat exchanger

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Legal Events

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A300 Withdrawal of application because of no request for examination

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Effective date: 20040302