JPH1085917A - Pin as cast - Google Patents

Pin as cast

Info

Publication number
JPH1085917A
JPH1085917A JP23825396A JP23825396A JPH1085917A JP H1085917 A JPH1085917 A JP H1085917A JP 23825396 A JP23825396 A JP 23825396A JP 23825396 A JP23825396 A JP 23825396A JP H1085917 A JPH1085917 A JP H1085917A
Authority
JP
Japan
Prior art keywords
pin
cast
pin member
mold
hole
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
JP23825396A
Other languages
Japanese (ja)
Inventor
Akihiko Ogasawara
明彦 小笠原
Yuji Ishii
裕士 石井
Kiyonobu Mizogami
清信 溝上
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP23825396A priority Critical patent/JPH1085917A/en
Publication of JPH1085917A publication Critical patent/JPH1085917A/en
Pending legal-status Critical Current

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  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a pin as cast low in cost by which the releasing property is improved and the deformation of the pin as cast due to thermal expansion can be prevented and the boring of a cast product is unnecessary. SOLUTION: At the time of introducing molten metal into a cavity 72, the surface of the pin member 22 formed of molybdenum or molybdenum alloy is oxidized or sublimated with the molten metal. Therefore, the galling is hardly caused in the pin member 22, and at the time of removing the cast product from the pin member 22, the surface of the pin member 22 is peeled off and the cast product is easily removed. Further, since a step part 26 for positioning the pin 10 as cast is integrally formed with a round clumnar part 28, the pin member 22 is hardly dislocated or deformed due to the thermal expansion to improve the quality of the cast product.

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、金型に組み込まれ
て鋳造に用いられる鋳抜きピンに関し、一層詳細には、
鋳抜きピンの材質として少なくとも溶湯に浸漬される先
端部分にモリブデン若しくはモリブデン合金を用いるこ
とによって自己潤滑性に富むように構成された鋳抜きピ
ンに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blanking pin which is incorporated in a mold and used for casting.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cast pin configured to be rich in self-lubrication by using molybdenum or a molybdenum alloy at least at a tip portion of the cast pin which is immersed in a molten metal.

【0002】[0002]

【従来の技術】ダイカスト鋳造法、例えば、低圧鋳造法
のように金型を用いて製品を鋳造する場合、製品のボル
ト孔等の孔部は鋳抜きピンを用いて直接鋳抜いて成形す
る場合が多い。また、鋳抜きピンは製品の軽量化あるい
は鋳造欠陥の防止対策等を目的として、広範に使用され
るに至っている。
2. Description of the Related Art When a product is cast using a die as in a die casting method, for example, a low-pressure casting method, a hole such as a bolt hole of the product is formed by directly casting using a cast pin. There are many. Also, cast pins have been widely used for the purpose of reducing the weight of products or preventing casting defects.

【0003】従来、このような鋳抜きピンは、鉄鋼材料
の中、熱間工具鋼(例えば、JISSKD61)をその
材質として製造され、さらに、焼入れ、焼戻し等の熱処
理を施した後、軟窒化処理(タフトライド処理)を施し
て耐熱性、耐摩耗性が付与される。金型内において鋳抜
きピンは直接高温の溶湯に浸漬され、さらされるからで
ある。
Conventionally, such a cast pin is manufactured using a hot tool steel (for example, JIS SKD61) among iron and steel materials, and further subjected to a heat treatment such as quenching and tempering, and then to a soft nitriding treatment. (Tufftriding treatment) to impart heat resistance and wear resistance. This is because the cast pins are directly immersed and exposed to the high-temperature molten metal in the mold.

【0004】しかしながら、アルミニウム合金の溶湯で
鋳造サイクルを連続的に行うと、鋳抜きピンの表面にア
ルミニウムとの合金層が形成されるのが避けられない。
これは熱間工具鋼と溶湯との親和性が良好であり、この
合金層の成長によって鋳抜きピンが浸食され、やがては
鋳抜きピンのキャビティ内の溶湯挿入部分が破損した
り、鋳造品からの離型性が悪化する、所謂、かじりが生
じる。このように、鋳型で製造された製品には、前記か
じりによって孔部の形状に誤差が生じ、この孔部をさら
にドリル等で所定の形状に加工し直す必要があった。
However, when a casting cycle is continuously performed with a molten aluminum alloy, it is inevitable that an alloy layer with aluminum is formed on the surface of the cast pin.
This has a good affinity between the hot work tool steel and the molten metal, and the growth of this alloy layer erodes the cast pin, eventually breaking the molten metal insertion part in the cavity of the cast pin, and causing In other words, so-called galling occurs, which degrades the mold releasability. As described above, in the product manufactured by the mold, an error occurs in the shape of the hole due to the galling, and it is necessary to rework the hole into a predetermined shape by a drill or the like.

【0005】こうした不都合を克服するために、特開平
2−34266号公報には、鋳抜きピンの材質としてチ
タン若しくはチタン合金を用い、さらに、その表面に窒
化処理によって窒化層からなる硬化層を形成することに
より、アルミニウムとの合金層の育成が回避され、溶湯
とのかじりが阻止される鋳抜きピンが開示されている。
In order to overcome such inconveniences, Japanese Patent Application Laid-Open No. 2-34266 discloses that a pin or pin is made of titanium or a titanium alloy, and a hardened layer made of a nitride layer is formed on the surface by nitriding. By doing so, a cast pin is disclosed that avoids the growth of an alloy layer with aluminum and prevents galling with the molten metal.

【0006】[0006]

【発明が解決しようとする課題】本発明は、離型性をさ
れに向上させると共に、熱膨張による鋳抜きピンの変形
を阻止することが可能で、鋳造品に孔明け加工をし直す
必要がなく、安価に製造できる鋳抜きピンを提供するこ
とを目的とする。
SUMMARY OF THE INVENTION According to the present invention, it is possible to improve the releasability and prevent deformation of a cast pin due to thermal expansion, and it is necessary to re-drill a cast product. It is an object of the present invention to provide a cast pin which can be manufactured at low cost.

【0007】[0007]

【課題を解決するための手段】前記の目的を達成するた
めに、本発明は、鋳型に装着される鋳抜きピンであっ
て、鋳抜きピンの構成部材の中、少なくとも溶湯に直接
接触するピン部材の材質としてモリブデン若しくはモリ
ブデン合金を用いることを特徴とする。
In order to achieve the above object, the present invention relates to a blanking pin to be mounted on a mold, wherein at least one of the constituent members of the blanking pin is in direct contact with the molten metal. It is characterized in that molybdenum or a molybdenum alloy is used as a material of the member.

【0008】本発明によれば、鋳型に溶湯が供給される
と、ピン部材が溶湯に接触して該ピン部材の表面が酸化
または昇華し、この酸化または昇華したピン部材の表面
が剥離することにより、鋳抜きピンは鋳造された製品か
ら容易に取り外される。
According to the present invention, when the molten metal is supplied to the mold, the pin member comes into contact with the molten metal and the surface of the pin member is oxidized or sublimated, and the oxidized or sublimated surface of the pin member peels off. Thereby, the blanking pin is easily removed from the cast product.

【0009】この場合、前記ピン部材に段部またはテー
パ部を設け、一方、前記鋳型に画成され、前記鋳抜きピ
ンが挿入される孔部を形成する壁部には前記ピン部材の
段部またはテーパ部に係合する段部またはテーパ部が形
成されると、前記鋳抜きピンが溶湯の温度によって熱膨
張しても、該鋳抜きピンが鋳型に対して位置ずれするこ
とがなく、好適である。
In this case, a step portion or a tapered portion is provided on the pin member, while a step portion of the pin member is formed on a wall portion formed in the mold and forming a hole portion into which the cast pin is inserted. Or, if a stepped portion or a tapered portion to be engaged with the tapered portion is formed, even if the die-casting pin thermally expands due to the temperature of the molten metal, the die-casting pin is not displaced with respect to the mold, which is preferable. It is.

【0010】また、この場合、前記ピン部材の端部には
前記溶湯に接触することのない基台が固着されると、基
台を安価な材料で構成することが可能で前記鋳抜きピン
のコストを低廉化することができ、好ましい。
In this case, if a base that does not come into contact with the molten metal is fixed to the end of the pin member, the base can be made of an inexpensive material, and This is preferable because the cost can be reduced.

【0011】さらに、この場合、前記ピン部材の端部に
は凸部が形成され、前記凸部は前記基台に形成された凹
部に係合して固着されると、前記ピン部材と前記基台と
を接合する面積が広くなって大きな力で固着することが
でき、この鋳抜きピンが破損する懸念を減少でき、一層
好ましい。
Further, in this case, a projection is formed at an end of the pin member, and the projection is engaged with and fixed to a recess formed in the base. It is more preferable that the area to be joined to the base is widened and fixed with a large force, and the fear that the cast pin is damaged can be reduced.

【0012】[0012]

【発明の実施の形態】本発明に係る鋳抜きピンについ
て、好適な実施の形態を挙げ、添付の図面を参照しなが
ら以下詳細に説明する。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a cast pin according to the present invention.

【0013】図1において、参照符号10は、本発明の
第1の実施の形態に係る鋳抜きピンを示す。この鋳抜き
ピン10は、銅または鉄の如き材料で略円柱形状に形成
された基台12を備え、該基台12の外周の一端部には
半径方向外方に突出したフランジ部14が形成される。
前記基台12の一端部にはその軸線方向に沿ってねじ孔
16が画成される。前記基台12の他端部には凹部18
が画成され、該凹部18の底部は断面V字状に形成され
る。該凹部18の端部にはガス抜き孔20が画成され、
該ガス抜き孔20は前記基台12の内部でその半径方向
に屈曲し、該基台12の外周に開口する。
In FIG. 1, reference numeral 10 denotes a blanking pin according to a first embodiment of the present invention. The cast pin 10 includes a base 12 formed of a material such as copper or iron into a substantially cylindrical shape, and a flange portion 14 protruding radially outward is formed at one end of the outer periphery of the base 12. Is done.
A screw hole 16 is defined at one end of the base 12 along the axial direction thereof. The other end of the base 12 has a recess 18
Is formed, and the bottom of the concave portion 18 is formed in a V-shaped cross section. A gas vent hole 20 is defined at an end of the concave portion 18,
The gas vent hole 20 is bent in the radial direction inside the base 12 and opens to the outer periphery of the base 12.

【0014】前記凹部18にはモリブデン、または、下
記の表1あるいは表2に示すようなモリブデン合金の如
き材料で形成されたピン部材22の一端部が嵌入する。
One end of a pin member 22 made of a material such as molybdenum or a molybdenum alloy as shown in Table 1 or Table 2 below is fitted into the recess 18.

【0015】[0015]

【表1】 [Table 1]

【0016】[0016]

【表2】 [Table 2]

【0017】前記ピン部材22の一端部には前記基台1
2の凹部18に対応した断面V字状の凸部24が形成さ
れ、該凸部24は前記凹部18の壁部に銅ロウまたは銀
ロウを使用してロウ付けにより固着される。このロウ付
けされた前記凹部18と凸部24は、互いに凹凸に形成
されているため、ロウ付けの面積が広くなり、該ピン部
材22と基台12とが大きな力で接合される。前記ピン
部材22には段部26を介して円柱部28が形成され
る。該円柱部28の外周は、他端部に向かうに従って徐
々に縮径したテーパ状に形成される。
The base 1 is attached to one end of the pin member 22.
A convex portion 24 having a V-shaped cross section corresponding to the second concave portion 18 is formed, and the convex portion 24 is fixed to the wall portion of the concave portion 18 by brazing using copper brazing or silver brazing. Since the brazed concave portion 18 and the protruded portion 24 are formed unevenly with respect to each other, the brazing area is increased, and the pin member 22 and the base 12 are joined with a large force. A column 28 is formed on the pin member 22 via a step 26. The outer periphery of the cylindrical portion 28 is formed in a tapered shape whose diameter is gradually reduced toward the other end.

【0018】第1の実施の形態に係る鋳抜きピン10
は、基本的には以上のように構成されるものであり、次
に、該鋳抜きピン10が使用される鋳型40について、
図2を参照して説明する。
The cast pin 10 according to the first embodiment
Is basically configured as described above. Next, regarding the mold 40 in which the cast pin 10 is used,
This will be described with reference to FIG.

【0019】この鋳型40はバックブロック42を備
え、該バックブロック42には金型44がねじ46によ
って固着され、該金型44には成形面48が形成されて
いる。前記金型44の前記バックブロック42に当接す
る面には孔部50が画成され、該孔部50は段部52を
介して縮径した孔部54に連通する。該孔部54は段部
56を介して縮径した孔部58に連通し、さらに段部6
0を介して縮径した孔部62に連通し、該孔部62は成
形面48に開口する。前記鋳抜きピン10は前記孔部5
8に挿入され、前記円柱部28は前記孔部62を挿通し
て成形面48から突出する。前記段部60には前記鋳抜
きピン10の段部26が係合して該鋳抜きピン10は位
置決めされる。また、鋳抜きピン10のフランジ部14
は段部56に係合し、前記鋳抜きピン10のねじ孔16
にはねじ64が螺入する。該ねじ64は大径な胴部66
に連結され、該胴部66は前記孔部54に挿入される。
前記ねじ64の頭部68は前記段部52に係合して該ね
じ64は位置決めされる。
The mold 40 includes a back block 42, and a mold 44 is fixed to the back block 42 by screws 46, and a molding surface 48 is formed on the mold 44. A hole 50 is defined in a surface of the mold 44 that contacts the back block 42, and the hole 50 communicates with a hole 54 whose diameter is reduced through a step 52. The hole 54 communicates with a hole 58 having a reduced diameter via a step 56,
The hole 62 communicates with the hole 62 having a reduced diameter through the opening 0, and the hole 62 opens to the molding surface 48. The cast pin 10 is connected to the hole 5
The cylindrical portion 28 is inserted into the hole 62 and protrudes from the molding surface 48. The stepped portion 26 of the blanking pin 10 is engaged with the stepped portion 60, and the blanking pin 10 is positioned. Also, the flange portion 14 of the cast pin 10
Engages with the stepped portion 56, and the screw hole 16 of the
A screw 64 is screwed into. The screw 64 has a large body 66
The body 66 is inserted into the hole 54.
The head 68 of the screw 64 engages the step 52 to position the screw 64.

【0020】前記鋳型40は他の鋳型70a〜70cと
組み合わせて使用され、前記鋳型40と、該鋳型40の
成形面48に対向する鋳型70cとは互いに接近、離間
可能に構成される。前記鋳型70a〜70cには成形面
71a〜71cが形成され、夫々の鋳型40、70a〜
70cの成形面48、71a〜71cによりキャビティ
72が形成される。
The mold 40 is used in combination with other molds 70a to 70c, and the mold 40 and the mold 70c facing the molding surface 48 of the mold 40 are configured to be able to approach and separate from each other. Molding surfaces 71a to 71c are formed on the molds 70a to 70c, respectively.
The cavity 72 is formed by the molding surfaces 48, 71a to 71c of 70c.

【0021】次に、前記鋳型40の動作並びに作用効果
について説明する。
Next, the operation and effect of the mold 40 will be described.

【0022】キャビティ72にアルミニウムの如き溶湯
が導入されると、該溶湯は鋳抜きピン10のピン部材2
2に接触し、該ピン部材22が高温となる。このピン部
材22を形成するモリブデンまたはモリブデン合金は、
約300℃で酸化し、約900℃で昇華する性質を有す
る。このため、ピン部材22の表面が酸化または昇華す
るに至る。溶湯が冷却されて固化することにより形成さ
れた鋳造品は、ピン部材22の表面において、前記モリ
ブデンまたはモリブデン合金の酸化若しくは昇華により
容易に剥離する。そこで、鋳型40と鋳型70cとを互
いに離間する方向に変位させ、鋳造品を取り出す。この
とき、ピン部材22の表面は剥離し、鋳造品をピン部材
22から容易に取り外すことができる。
When a molten metal such as aluminum is introduced into the cavity 72, the molten metal is
2 and the pin member 22 becomes hot. Molybdenum or a molybdenum alloy forming the pin member 22 is
It oxidizes at about 300 ° C and sublimates at about 900 ° C. Therefore, the surface of the pin member 22 is oxidized or sublimated. The cast product formed by cooling and solidifying the molten metal is easily separated on the surface of the pin member 22 by oxidation or sublimation of the molybdenum or molybdenum alloy. Therefore, the casting is taken out by displacing the casting mold 40 and the casting mold 70c in a direction away from each other. At this time, the surface of the pin member 22 peels off, and the cast product can be easily removed from the pin member 22.

【0023】また、ピン部材22の表面のみが剥離し、
該ピン部材22の内部が浸食されることがないため、か
じりの発生がなく、鋳造品に形成される孔部の形状、寸
法に誤差が生じる懸念もない。このため、鋳造品に画成
された孔部をドリル等で加工し直す工程も不要となる。
Further, only the surface of the pin member 22 peels off,
Since the inside of the pin member 22 is not eroded, there is no occurrence of galling and there is no concern that errors occur in the shape and dimensions of the hole formed in the casting. For this reason, a step of reworking the hole defined in the casting with a drill or the like is not required.

【0024】また、ピン部材22の表面の剥離は1回の
鋳造毎に起こるが、このとき剥離するモリブデンまたは
モリブデン合金の厚さは極めて薄く、鋳造を多数回行っ
ても、ピン部材22の寸法はほとんど変化しない。この
ため、この鋳抜きピン10を使用した鋳型40の寿命も
大幅に長くなる。
Also, the surface of the pin member 22 is peeled off at each casting, but the thickness of the molybdenum or molybdenum alloy peeled off at this time is extremely small. Hardly changes. For this reason, the life of the mold 40 using the cast pin 10 is greatly extended.

【0025】前記鋳抜きピン10は溶湯の温度により高
温になり熱膨張するが、鋳抜きピン10を位置決めして
いる段部26と円柱部28が同一の材料(モリブデンま
たはモリブデン合金)で形成されているため、熱膨張率
の差がなく、段部60に対してピン部材22が変形した
り位置が変化する懸念がない。このため、鋳造品の孔部
の位置が変化したり、その形状が変形することもない。
Although the cast pin 10 becomes hot due to the temperature of the molten metal and expands thermally, the step 26 and the column 28 for positioning the cast pin 10 are formed of the same material (molybdenum or molybdenum alloy). Therefore, there is no difference in the coefficient of thermal expansion, and there is no concern that the pin member 22 is deformed or the position changes with respect to the stepped portion 60. For this reason, the position of the hole of the casting does not change or its shape is not deformed.

【0026】次に、本発明の第2の実施の形態の鋳抜き
ピンについて、図3を参照して説明する。以下、前記第
1の実施の形態と同一の構成要素には同一の参照符号を
付してその詳細な説明を省略する。
Next, a cast pin according to a second embodiment of the present invention will be described with reference to FIG. Hereinafter, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

【0027】第2の実施の形態に係る鋳抜きピン80の
ピン部材82は、その先端に向かって徐々に縮径したテ
ーパ状に形成される。この鋳抜きピン80が使用される
鋳型40には、孔部54に段部56を介して孔部84が
連通し、該孔部84は徐々に縮径したテーパ状に形成さ
れて成形面48に開口する。前記鋳抜きピン80のピン
部材82は前記孔部84に挿通し、該ピン部材82のテ
ーパ状の外周と前記孔部84のテーパ状の壁部とが係合
して前記鋳抜きピン80は鋳型40に位置決めされる。
The pin member 82 of the cast pin 80 according to the second embodiment is formed in a tapered shape whose diameter is gradually reduced toward the tip. A hole 84 communicates with the mold 40 in which the cast pin 80 is used, through the hole 54 via a step 56, and the hole 84 is formed in a tapered shape with a gradually reduced diameter, and the molding surface 48 is formed. Open to The pin member 82 of the blanking pin 80 is inserted into the hole 84, and the tapered outer periphery of the pin member 82 and the tapered wall of the hole 84 engage to form the blanking pin 80. It is positioned on the mold 40.

【0028】すなわち、第1の実施の形態では、鋳抜き
ピン10には段部26が形成されているが、この第2の
実施の形態では、ピン部材82の全体がテーパ状に形成
され、段部を形成する必要がないため、鋳抜きピン80
の製造が容易になるという利点がある。
That is, in the first embodiment, the stepped portion 26 is formed on the cast pin 10, but in the second embodiment, the entire pin member 82 is formed in a tapered shape. Since there is no need to form a step, the cast pin 80
There is an advantage that the manufacture of the device is easy.

【0029】以上のような構成において、キャビティ7
2に溶湯が導入され、鋳抜きピン80が溶湯の温度によ
り熱膨張しても、溶湯に接触しているピン部材82がテ
ーパ状に形成されて鋳抜きピン80が鋳型40に位置決
めされているため、ピン部材82が熱膨張しても鋳型4
0に対してその位置が変化したりピン部材82が変形す
る懸念がない。このため、鋳造品の孔部の位置が変化し
たり、その形状が変形することもない。
In the above configuration, the cavity 7
Even if the molten metal is introduced into 2 and the cast pin 80 thermally expands due to the temperature of the molten metal, the pin member 82 in contact with the molten metal is formed in a tapered shape, and the cast pin 80 is positioned in the mold 40. Therefore, even if the pin member 82 thermally expands, the mold 4
There is no concern about the position changing with respect to 0 or the pin member 82 being deformed. For this reason, the position of the hole of the casting does not change or its shape is not deformed.

【0030】[0030]

【発明の効果】本発明に係る鋳抜きピンによれば、以下
のような効果ならびに利点が得られる。
According to the cast pin according to the present invention, the following effects and advantages can be obtained.

【0031】鋳抜きピンをモリブデンまたはモリブデン
合金で構成したので、鋳造時、キャビティにアルミニウ
ム等の溶湯を導入した際、該モリブデンまたはモリブデ
ン合金がアルミニウムの溶湯と接触して酸化または昇華
し、ピン部材の表面が剥離するため、かじりが生じる懸
念がなく、鋳造品を鋳抜きピンから容易に取り外すこと
ができる。また、鋳造品に形成された孔部の変形や位置
ずれが発生する懸念がなくなり、鋳造品の品質が向上す
ると共に、鋳造品に孔明け加工をし直す必要がなくな
り、製造時間を短縮することが可能となる。
Since the cast pin is made of molybdenum or a molybdenum alloy, when a molten metal such as aluminum is introduced into the cavity during casting, the molybdenum or the molybdenum alloy comes into contact with the molten aluminum to oxidize or sublime, and the pin member is formed. Since the surface of the casting is peeled off, there is no fear of galling, and the cast product can be easily removed from the blanking pin. In addition, there is no concern that deformation or displacement of the hole formed in the cast product occurs, and the quality of the cast product is improved, and it is not necessary to re-drill the cast product, thereby shortening the manufacturing time. Becomes possible.

【0032】さらに、基台を安価な材料で形成すること
により、鋳抜きピン全体として高価なモリブデンまたは
モリブデン合金の使用量が減少し、鋳抜きピンの製造価
格を低廉化することができ、ひいては、この鋳抜きピン
が使用される鋳型で製造される製品自体の価格も安価と
することができる等の効果が得られる。
Further, by forming the base with an inexpensive material, the amount of expensive molybdenum or a molybdenum alloy used as the whole cast pin can be reduced, and the manufacturing cost of the cast pin can be reduced. In addition, such an effect is obtained that the price of a product itself manufactured with a mold using the cast pin can be reduced.

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

【図1】本発明の第1の実施の形態に係る鋳抜きピンを
示す断面図である。
FIG. 1 is a cross-sectional view showing a cast pin according to a first embodiment of the present invention.

【図2】図1の鋳抜きピンが使用される鋳型を示す縦断
面図である。
FIG. 2 is a longitudinal sectional view showing a mold in which the cast pin of FIG. 1 is used.

【図3】本発明の第2の実施の形態に係る鋳抜きピンが
使用される鋳型を示す縦断面図である。
FIG. 3 is a longitudinal sectional view showing a mold in which a cast pin according to a second embodiment of the present invention is used.

【符号の説明】[Explanation of symbols]

10、80…鋳抜きピン 12…基台 18…凹部 22、82…ピン部
材 24…凸部 26、52、56、
60…段部 40、70a〜70c…鋳型 48、71a〜71
c…成形面 72…キャビティ
10, 80: cast pin 12: base 18: concave portion 22, 82: pin member 24: convex portion 26, 52, 56,
60: Step portion 40, 70a to 70c: Mold 48, 71a to 71
c: molding surface 72: cavity

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】鋳型に装着される鋳抜きピンであって、鋳
抜きピンの構成部材の中、少なくとも溶湯に直接接触す
るピン部材の材質としてモリブデン若しくはモリブデン
合金を用いることを特徴とする鋳抜きピン。
1. A cast-out pin mounted on a mold, wherein molybdenum or a molybdenum alloy is used as a material of at least a pin member of the constituent members of the cast-out pin that directly contacts the molten metal. pin.
【請求項2】請求項1記載の鋳抜きピンにおいて、 前記ピン部材に段部を設け、一方、前記鋳型に画成さ
れ、前記鋳抜きピンが挿入される孔部を形成する壁部に
は前記ピン部材の段部に係合する段部が形成されること
を特徴とする鋳抜きピン。
2. The blanking pin according to claim 1, wherein a step is provided on the pin member, and a wall defined by the mold and forming a hole into which the blanking pin is inserted is provided. A cast pin, wherein a step is formed to engage with a step of the pin member.
【請求項3】請求項1記載の鋳抜きピンにおいて、 前記ピン部材にテーパ部を設け、一方、前記鋳型に画成
され、前記鋳抜きピンが挿入される孔部を形成する壁部
には前記ピン部材のテーパ部に係合するテーパ部が形成
されることを特徴とする鋳抜きピン。
3. The cast pin according to claim 1, wherein the pin member is provided with a tapered portion, while a wall defined by the mold and forming a hole portion into which the cast pin is inserted is provided. A cast pin, wherein a tapered portion is formed to engage with the tapered portion of the pin member.
【請求項4】請求項1乃至3のいずれか1項に記載の鋳
抜きピンにおいて、 前記ピン部材の端部には前記溶湯に接触することのない
基台が固着され、前記基台を鋳型の所定位置に取り付け
ることにより前記鋳抜きピンを鋳型に装着することを特
徴とする鋳抜きピン。
4. The cast pin according to claim 1, wherein a base that does not contact the molten metal is fixed to an end of the pin member, and the base is a mold. Wherein said cast pin is mounted on a mold by being mounted at a predetermined position.
【請求項5】請求項4記載の鋳抜きピンにおいて、 前記ピン部材の端部には凸部が形成され、前記凸部は前
記基台に形成された凹部に係合して固着されることを特
徴とする鋳抜きピン。
5. The cast pin according to claim 4, wherein a projection is formed at an end of the pin member, and the projection is engaged with and fixed to a recess formed in the base. A cast pin.
JP23825396A 1996-09-09 1996-09-09 Pin as cast Pending JPH1085917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23825396A JPH1085917A (en) 1996-09-09 1996-09-09 Pin as cast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23825396A JPH1085917A (en) 1996-09-09 1996-09-09 Pin as cast

Publications (1)

Publication Number Publication Date
JPH1085917A true JPH1085917A (en) 1998-04-07

Family

ID=17027436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23825396A Pending JPH1085917A (en) 1996-09-09 1996-09-09 Pin as cast

Country Status (1)

Country Link
JP (1) JPH1085917A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002126864A (en) * 2000-10-23 2002-05-08 Dynamo:Kk Core pin for die
JP2017094372A (en) * 2015-11-26 2017-06-01 株式会社スグロ鉄工 Core pin and metal mold for casting
CN114083240A (en) * 2021-11-29 2022-02-25 贵州天义电器有限责任公司 Welding method for two-body conductive block

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002126864A (en) * 2000-10-23 2002-05-08 Dynamo:Kk Core pin for die
JP2017094372A (en) * 2015-11-26 2017-06-01 株式会社スグロ鉄工 Core pin and metal mold for casting
CN114083240A (en) * 2021-11-29 2022-02-25 贵州天义电器有限责任公司 Welding method for two-body conductive block
CN114083240B (en) * 2021-11-29 2024-03-01 贵州天义电器有限责任公司 Welding method for two-body conductive block

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