JPS5858958A - Molding method for sand mold for casting - Google Patents

Molding method for sand mold for casting

Info

Publication number
JPS5858958A
JPS5858958A JP15798081A JP15798081A JPS5858958A JP S5858958 A JPS5858958 A JP S5858958A JP 15798081 A JP15798081 A JP 15798081A JP 15798081 A JP15798081 A JP 15798081A JP S5858958 A JPS5858958 A JP S5858958A
Authority
JP
Japan
Prior art keywords
sand
casting
mold
sand mold
small iron
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
JP15798081A
Other languages
Japanese (ja)
Inventor
Kiyoshi Goto
清 後藤
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.)
HOKUSEI CHUTETSU SEISAKUSHO GOUSHI
Original Assignee
HOKUSEI CHUTETSU SEISAKUSHO GOUSHI
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 HOKUSEI CHUTETSU SEISAKUSHO GOUSHI filed Critical HOKUSEI CHUTETSU SEISAKUSHO GOUSHI
Priority to JP15798081A priority Critical patent/JPS5858958A/en
Publication of JPS5858958A publication Critical patent/JPS5858958A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To improve the cooling capacity of sand molds by dispersing small iron ingots in an upper sand mold in the state of attaching a film on the inside surface of the casting cavity formed of upper and lower sand molds and performing casting. CONSTITUTION:A film 4 is attached on the inside surface of a mold cavity 3 formed of upper, lower sand molds 1, 2, and is then sucked by vacuum, after which casting is performed. Small iron ingots 6 are beforehand mixed in the sand 1a of the upper sand mold 1 in a dispersed state. Therefore the cooling capacity of the mold 1 is improved markedly, even if silica sand is at, for example, about 800 deg.C, the ingots 6 remain at about 400 deg.C, thus playing the role of chillers.

Description

【発明の詳細な説明】 この発明は鋳造用砂型の成型方法に関する。[Detailed description of the invention] The present invention relates to a method for forming a sand mold for casting.

左 この発明の目的はＶプロ七ス成型方決め改良するために
、上の砂型の鉄中に小鉄塊を散布状に混在せしめて、砂
型の冷却能を良化向上することである。The purpose of this invention is to improve the cooling ability of the sand mold by scattering small iron ingots in the iron of the upper sand mold in order to improve the V-Pro7 molding method.

以下１回向にしたがって、本発明方法を説明すると、図
中、１，２は上下の砂型、１ｍ、２ｍは砂、３は鋳造空
胴、４は合成樹脂系のフィルムおよび５は湯口である。The method of the present invention will be explained below in one direction. In the figure, 1 and 2 are upper and lower sand molds, 1 m and 2 m are sand, 3 is a casting cavity, 4 is a synthetic resin film, and 5 is a sprue. .

さて、本例方法は上下の砂型１．２ＩＣ形成される鋳造
空胴５内面にフィルム４を添着してから真空吸引手段（
図示しない、、）にて真空吸引するとき、前記上の砂型
１の砂１ｓ中に予め小鉄塊６〜６を散布状に混在せしめ
ておき、その後は公知手段にて鋳造を行うものであるが
、上の砂型１の冷却能が的記小鉄塊乙の混在によって著
しく向上される。たとえば珪砂が８０♂Ｃ位でも、小鉄
塊６はａ、ｏｔｆｃ位となるので、この小鉄塊（鋳造品
に使用されるり９・・・Ｆ玉を使用するとよい。）６が
冷し金となるものである。。Now, in this example method, after attaching the film 4 to the inner surface of the casting cavity 5 formed by the upper and lower sand molds 1.2 IC, the vacuum suction means (
When vacuum suction is carried out using a vacuum pump (not shown), small iron ingots 6 to 6 are mixed in advance in a scattered manner in the sand 1s of the upper sand mold 1, and then casting is carried out by known means. , the cooling capacity of the upper sand mold 1 is significantly improved by the inclusion of small iron ingots 2. For example, even if the silica sand is about 80♂C, the small iron ingot 6 will be about a, otfc, so this small iron ingot (it is better to use 9...F ball for casting products) 6 will become the cold metal. It is something. .

そして、鋳造＝Ｃは前記小鉄塊６の再使用可能となる効
果が得られる。Casting=C has the effect that the small iron ingot 6 can be reused.

すなわち、本発明方法は特許請求の範囲に記載された方
法にて上記した作用効果を示すので、本発明は鋳造用砂
型の成型方法として極めて好しい発明である。That is, since the method of the present invention exhibits the above-mentioned effects as described in the claims, the present invention is an extremely preferable method for forming a sand mold for casting.

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

図面は本発明方法の一実施例を示す砂型の略体側断面図
である、。 １．２・・・・上下の砂型、６・・・・小鉄塊。 特許出願人　合資会社北勢鋳鉄製作所The drawing is a schematic side sectional view of a sand mold showing an embodiment of the method of the present invention. 1.2... upper and lower sand molds, 6... small iron lumps. Patent applicant Hokusei Cast Iron Works Limited Partnership Company

Claims (1)

【特許請求の範囲】[Claims] 上下の砂型に形成される鋳造空胴の内面にフィルムを添
接してから真空吸引して砂を固結するとき、前Ｉ？ｄ上
の砂型の鉄中に予め小鉄塊を散布状に混在せしめること
を特徴とする鋳造用砂型の成型方法。When a film is attached to the inner surface of the casting cavity formed in the upper and lower sand molds and the sand is solidified by vacuum suction, A method for forming a sand mold for casting, characterized in that small iron ingots are mixed in advance in a scattered manner in the iron of the sand mold on d.
JP15798081A 1981-10-02 1981-10-02 Molding method for sand mold for casting Pending JPS5858958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15798081A JPS5858958A (en) 1981-10-02 1981-10-02 Molding method for sand mold for casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15798081A JPS5858958A (en) 1981-10-02 1981-10-02 Molding method for sand mold for casting

Publications (1)

Publication Number Publication Date
JPS5858958A true JPS5858958A (en) 1983-04-07

Family

ID=15661615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15798081A Pending JPS5858958A (en) 1981-10-02 1981-10-02 Molding method for sand mold for casting

Country Status (1)

Country Link
JP (1) JPS5858958A (en)

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