JPS5850167A - Prevention for clogging of sprue - Google Patents

Prevention for clogging of sprue

Info

Publication number
JPS5850167A
JPS5850167A JP14870981A JP14870981A JPS5850167A JP S5850167 A JPS5850167 A JP S5850167A JP 14870981 A JP14870981 A JP 14870981A JP 14870981 A JP14870981 A JP 14870981A JP S5850167 A JPS5850167 A JP S5850167A
Authority
JP
Japan
Prior art keywords
sprue
riser
sub
clogging
heating
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
JP14870981A
Other languages
Japanese (ja)
Inventor
Hajime Shimazaki
島崎　一
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP14870981A priority Critical patent/JPS5850167A/en
Publication of JPS5850167A publication Critical patent/JPS5850167A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To prevent the clogging of a sprue and to improve the quality and productivity of castings in low pressure casting by heating a sub-riser with a heating medium. CONSTITUTION:In the stage of charging molten Al 2 under low pressure from a heat holding furnace 1 into a sprue 7 of a bottom part 6 through a stalk 4 and a sub-riser 5, the metal 2 cools and solidifies, due to which the sprue 7 is clogged by the solidified metal. If in such a case, a high frequency heating coil 8 is wound on the sub-riser 5 to heat the same locally, the sprue 7 is heated as well. Thus the cooling of the sprue 7 hence the clogging of the sprue are obviated. Since the molten metal 2 charged through the sprue 7 does not cause solidification due to quick cooling, the effect of a riser increases and the quality of castings is improved.

Description

【発明の詳細な説明】 本発明社、湯口詰まり防止方法に係り、特に、低圧鋳造
機の注湯における湯口詰まり防止方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing clogging of a sprue, and particularly to a method of preventing clogging of a sprue during pouring into a low-pressure casting machine.

従来、低圧鋳造機において、保温炉内のアルミニウム溶
湯をストークおよびサブライザーを通して金型の湯口へ
注入する場合、アルミニウム溶湯が固まって湯口詰まり
をおこす欠点がある。Conventionally, in a low-pressure casting machine, when molten aluminum in a heat insulating furnace is injected into a sprue of a mold through a stalk and a sub-riser, the molten aluminum hardens and clogs the sprue.

本発明は、このような欠点を解消したもので、サブライ
ザーを加熱用媒体にて加熱することにより、湯口詰まり
を防止することが所期できる湯口詰まり防止方法の提供
を、その目的とするものである。The present invention eliminates these drawbacks, and aims to provide a method for preventing sprue clogging by heating a sub-riser with a heating medium. It is.

本発明の特徴は、低圧力鋳造斡において、サブライザー
を加熱用媒体にて加熱する湯口詰まり防止方法にある。A feature of the present invention is a method for preventing sprue clogging in which a sub-riser is heated with a heating medium in a low-pressure casting hole.

以下、本発明の実施例を、図面に基づいて説明する。Embodiments of the present invention will be described below based on the drawings.

−ここで、図は、一実施例に係る低圧鋳造機の保温炉要
部の縦断側面図である。- Here, the figure is a longitudinal sectional side view of a main part of a heat retention furnace of a low-pressure casting machine according to an embodiment.

図で、１は、黒鉛るつぼからなる保温炉、２は、保温炉
ｌに溶融されたアルミニウム溶湯、３は炉ぶたである。In the figure, 1 is a heat retention furnace consisting of a graphite crucible, 2 is the molten aluminum melted in the heat retention furnace I, and 3 is a furnace lid.

４は、炉ぶた３の中心部を貫通して、保温炉１中に設け
られたストーク、５は、ストーク４の上部に結合された
サブライザーである。4 is a stalk that penetrates the center of the furnace lid 3 and is provided in the heat-retaining furnace 1; 5 is a sub-riser that is connected to the upper part of the stalk 4.

６は、金型の下型、７は下型６の湯口で、サブライザー
５と結合する。８は、サブライザー５に巻着された高周
波加熱コイルである。この加熱コイル８は、加熱用電熱
線でもよい。6 is a lower mold of the mold, and 7 is a sprue of the lower mold 6, which is connected to the sub-riser 5. 8 is a high frequency heating coil wound around the sub riser 5. This heating coil 8 may be a heating wire.

ト記構成において、アルミニウム溶湯２が低圧で保温炉
ｌからストーク４およびサブライザー５を通して、下型
６の湯ロアーへ注入されるめであるが、このアルミニウ
ム溶湯２が冷えて固まり湯ロアの湯詰まりをおこすもの
である。しかるに、サブライザー５には、高周波加熱コ
イル８が巻着され局部加熱されているので、湯ロアも加
熱され、湯ロアが冷えることがなく、湯口詰まりをおこ
すことがない。In the configuration described above, the molten aluminum 2 is injected at low pressure from the insulating furnace 1 through the stalk 4 and the sub-riser 5 into the hot water lower of the lower mold 6, but this molten aluminum 2 cools and hardens, resulting in clogging of the hot water lower. It is something that causes However, since the high-frequency heating coil 8 is wound around the sub-riser 5 to locally heat it, the hot water lower is also heated, so that the hot water lower does not cool down and the sprue does not become clogged.

以上説明したように、本実施例に係る湯口詰まり防止方
法は、湯ロアと結合するサブライザー５に高周波加熱コ
イル８を巻着して局部加熱を行うので、湯ロアのアルミ
ニウム溶湯が固まることを防止し、湯口詰まりをおこす
ことがない。As explained above, in the sprue clogging prevention method according to this embodiment, the high-frequency heating coil 8 is wound around the sub-riser 5 connected to the hot water lower to perform local heating, thereby preventing the molten aluminum in the hot water lower from solidifying. This prevents the sprue from clogging.

また、湯ロアから注入されたアルミニウム溶湯２が速く
冷えて固まらないので、押湯効果が大きくなり鋳造品の
品質が向上する。Moreover, since the aluminum molten metal 2 injected from the hot water lower cools quickly and does not solidify, the feeder effect is increased and the quality of the cast product is improved.

この他、従来湯ロアの固まったアルミニウム溶湯を掻き
落していたが、この必要がなくなるので、鋳造品の生産
性が向上する。In addition, the conventional method of scraping off the hardened molten aluminum from the hot water lower is no longer necessary, improving the productivity of cast products.

なお、本実施例では加熱媒体として高周波加熱コイルを
用いたが、加熱媒体で調整可能のものであれば、使用で
きることは言うまでもない。Although a high-frequency heating coil was used as the heating medium in this embodiment, it goes without saying that any heating medium that can be adjusted can be used.

以上述べたように、本発明は、総合して、アルミニウム
の低圧鋳造において、湯口詰まりを防止し、鋳造品の品
質および生産性の向上が可能な湯口詰まり防止方法を所
期できるものであって、実用的効果に優れた発明という
ことができる。As described above, the present invention provides a method for preventing sprue clogging in low-pressure casting of aluminum, which can improve the quality and productivity of cast products. This invention can be said to have excellent practical effects.

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

図は、本発明の一実施例に係る低圧鋳造機の保温炉要部
の縦断側面図である。 ｌ・・・保温炉、４・・・ストーク、５・・・サブライ
ザー、８・・・加熱用コイル。 特許出願人 日立金属株式会社 代　　理　　人The figure is a longitudinal sectional side view of a main part of a heat retention furnace of a low-pressure casting machine according to an embodiment of the present invention. l... Heat retention furnace, 4... Stoke, 5... Sub riser, 8... Heating coil. Patent applicant Hitachi Metals Co., Ltd. Agent

Claims (2)

【特許請求の範囲】[Claims] （１）　　低圧力鋳造ｅにおいて、サブライザーを加熱
媒体にて加熱することを特徴とする湯口詰まり防止方法
。(1) A method for preventing sprue clogging in low-pressure casting e, which is characterized by heating a sub-riser with a heating medium. （２）　　加熱媒体が高周波加熱用コイルである特許請
求の範囲第１項記載の湯口詰まり防止方法。(2) The method for preventing sprue clogging according to claim 1, wherein the heating medium is a high-frequency heating coil.
JP14870981A 1981-09-22 1981-09-22 Prevention for clogging of sprue Pending JPS5850167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14870981A JPS5850167A (en) 1981-09-22 1981-09-22 Prevention for clogging of sprue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14870981A JPS5850167A (en) 1981-09-22 1981-09-22 Prevention for clogging of sprue

Publications (1)

Publication Number Publication Date
JPS5850167A true JPS5850167A (en) 1983-03-24

Family

ID=15458838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14870981A Pending JPS5850167A (en) 1981-09-22 1981-09-22 Prevention for clogging of sprue

Country Status (1)

Country Link
JP (1) JPS5850167A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011016166A (en) * 2009-07-10 2011-01-27 Sukegawa Electric Co Ltd Casting apparatus
JP2011056564A (en) * 2009-09-14 2011-03-24 Toyota Motor Corp Preheating device
JP2011079000A (en) * 2009-10-05 2011-04-21 Sukegawa Electric Co Ltd Casting apparatus
EP3170583A1 (en) * 2015-11-19 2017-05-24 Borbet GmbH Low pressure casting device
EP2606995A3 (en) * 2011-12-23 2017-09-27 Martinrea Honsel Germany GmbH Casting device for casting cylinder crank housings using a low-pressure process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011016166A (en) * 2009-07-10 2011-01-27 Sukegawa Electric Co Ltd Casting apparatus
JP2011056564A (en) * 2009-09-14 2011-03-24 Toyota Motor Corp Preheating device
JP2011079000A (en) * 2009-10-05 2011-04-21 Sukegawa Electric Co Ltd Casting apparatus
EP2606995A3 (en) * 2011-12-23 2017-09-27 Martinrea Honsel Germany GmbH Casting device for casting cylinder crank housings using a low-pressure process
EP3170583A1 (en) * 2015-11-19 2017-05-24 Borbet GmbH Low pressure casting device

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