JP3010436U - Blister detector for casting - Google Patents
Blister detector for castingInfo
- Publication number
- JP3010436U JP3010436U JP1994012938U JP1293894U JP3010436U JP 3010436 U JP3010436 U JP 3010436U JP 1994012938 U JP1994012938 U JP 1994012938U JP 1293894 U JP1293894 U JP 1293894U JP 3010436 U JP3010436 U JP 3010436U
- Authority
- JP
- Japan
- Prior art keywords
- casting
- heating
- blister
- heating pot
- salt bath
- 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.)
- Expired - Lifetime
Links
Abstract
(57)【要約】
【目的】 短時間で且つ正確に鋳物のふくれ（ブリス
タ）検査を行なうことが出来る鋳物のブリスタ検出機を
提供すること。
【構成】 加熱用ポット１内に硝酸塩を加熱溶融させ
てなる塩浴４を収容せしめ、該塩浴中に被検査用の鋳物
を浸漬して加熱するようにした鋳物のブリスタ検出機に
おいて、加熱用ポット内に浸漬ヒーター３を上下動自在
に設置した。
(57) [Abstract] [Purpose] To provide a caster blister detector that can accurately and accurately inspect a cast blister in a short time. [Structure] In a blister detector of a casting, a salt bath 4 made by heating and melting a nitrate is contained in a heating pot 1, and a casting to be inspected is immersed in the salt bath for heating. The immersion heater 3 was installed in the pot for up and down movement.
Description
【０００１】[0001]
本考案は、ダイカスト等の鋳物中に存在する鋳巣の状況を検査するための鋳物 用ブリスタ検出機に関するものである。 The present invention relates to a casting blister detector for inspecting the condition of a porosity present in a casting such as die casting.
【０００２】[0002]
ダイカスト等の鋳物中には、その鋳造過程で空気や離型剤の分解ガスなどを巻 込んで多少の鋳巣が存在する場合がある。鋳巣は内部欠陥となるが、その存在は 鋳物を加熱することにより検査可能である。即ち、鋳物中に鋳巣が存在する場合 、鋳物を加熱すると鋳物の表面に「ふくれ（ブリスタ）」として現出するので、 その存在を検査することが可能となるわけである。 しかし乍ら、いわゆるブリスタを検査するための検出機は未だ提供されておら ず、従来鋳物のブリスタ検査を行なう場合には、一般的に熱風炉（熱風でもって 加熱するための炉）を使って被検査用の鋳物を外側から加熱していたため、検査 に時間が掛る（約１時間以上）不具合があった。 In a casting such as die casting, there may be some cavities due to inclusion of air or decomposition gas of the release agent in the casting process. The porosity becomes an internal defect, but its presence can be inspected by heating the casting. That is, in the case where there is a blowhole in the casting, when the casting is heated, it appears as "blister" on the surface of the casting, so that the presence can be inspected. However, a detector for inspecting a so-called blister has not yet been provided, and when performing a blister inspection of a conventional casting, generally, a hot-air stove (a furnace for heating with hot air) is used. Since the casting to be inspected was heated from the outside, there was a problem that the inspection took time (about 1 hour or more).
【０００３】[0003]
本考案はこの様な従来の不具合に鑑みてなされたものであり、短時間で且つ正 確に鋳物のふくれ（ブリスタ）検査を行なうことが出来る鋳物のブリスタ検出機 を提供せんとするものである。 The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a casting blister detector capable of accurately inspecting a casting blister in a short time. .
【０００４】[0004]
斯る目的を達成する本考案の請求項１記載のブリスタ検出機は、加熱用ポット 内に硝酸塩を加熱溶融させてなる塩浴を収容せしめ、その塩浴中に被検査用の鋳 物を浸漬して加熱するようにした鋳物のブリスタ検出機において、前記加熱用ポ ット内に浸漬ヒーターを上下動自在に設置せしめてなる事を特徴としたものであ る。 また、請求項２記載の鋳物のブリスタ検出機は、前記浸漬ヒーターを前記加熱 用ポットの上縁部に設置せしめた駆動シリンダに連結取付けて上下動自在とした 事を特徴としたものである。 そして、請求項３記載の鋳物のブリスタ検出機は、前記浸漬ヒーターを前記加 熱用ポットの内周形状にほぼ沿う平面略円形ないしは楕円形状に形成してなる事 を特徴としたものである。 The blister detector according to claim 1 of the present invention which achieves such an object has a heating pot in which a salt bath made by heating and melting a nitrate is housed, and a casting to be inspected is dipped in the salt bath. In a blister detector for a cast product which is heated by means of a heating method, an immersion heater is vertically movably installed in the heating pot. A caster blister detector according to a second aspect of the present invention is characterized in that the immersion heater is connected and attached to a drive cylinder that is installed at an upper edge portion of the heating pot so as to be vertically movable. A casting blister detector according to a third aspect of the present invention is characterized in that the immersion heater is formed in a substantially circular plane or an elliptical shape substantially along the inner peripheral shape of the heating pot.
【０００５】[0005]
以下、本考案実施の一例を図面に基づいて説明する。 図中１は加熱用ポットであり、耐熱性材料を用いて上部を開放した略四角箱形 状に形成されている。 An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a heating pot, which is made of a heat-resistant material and is formed into a substantially rectangular box shape with an open top.
【０００６】 加熱用ポット１は、内容器１ａと外容器１ｂとの間に耐熱性を有する保温材２ を充填設置して構成され、内容器１ａの内部に浸漬ヒーター３並びに硝酸塩を加 熱溶融させてなる塩浴４が収容設置されると共に、内容器１ａの上縁部に上記浸 漬ヒーター３を上下動させるための駆動シリンダ５が設置される。尚、加熱用ポ ット１内部の保温を図るために蓋を設けることは自由である。The heating pot 1 is constructed by filling a heat insulating material 2 having heat resistance between an inner container 1a and an outer container 1b, and heating and melting an immersion heater 3 and a nitrate inside the inner container 1a. The salt bath 4 thus formed is housed and installed, and a drive cylinder 5 for moving the immersion heater 3 up and down is installed at the upper edge of the inner container 1a. A lid may be provided to keep the inside of the heating pot 1 warm.
【０００７】 浸漬ヒーター３は、その加熱部３ａを加熱用ポット１の内周形状、すなわち内 容器１ａの内周形状にほぼ沿う平面略円形ないしは楕円形状に形成し、略逆Ｌ字 形に形成された取付け部３ｂを内容器１ａの上縁部外側に設置せしめた駆動シリ ンダ５に一体的に連結取付けてなる。The immersion heater 3 has its heating portion 3a formed in an inner peripheral shape of the heating pot 1, that is, in a substantially circular plane or an elliptical shape substantially along the inner peripheral shape of the inner container 1a, and is formed in a substantially inverted L shape. The attached portion 3b is integrally connected and attached to the drive cylinder 5 which is installed outside the upper edge portion of the inner container 1a.
【０００８】 また、本考案に使用する硝酸塩としては、硝酸ナトリウムや硝酸カリウム，亜 硝酸ナトリウム等から選ばれた一種又は二種以上の混合物を用い、使用に際して この硝酸塩を加熱溶融させて液状の塩浴４とする。As the nitrate used in the present invention, one or a mixture of two or more selected from sodium nitrate, potassium nitrate, sodium nitrite, etc. is used, and the nitrate salt is heated and melted at the time of use to form a liquid salt bath. Set to 4.
【０００９】 そして、加熱用ポット１内に収容された塩浴４は、加熱用ポット１の内底部に 配設した浸漬ヒーター３の加熱部３ａで直接加熱され、その温度制御は加熱用ポ ット１の外サイドに配置せしめた制御盤６による操作でもって行なわれる。Then, the salt bath 4 contained in the heating pot 1 is directly heated by the heating portion 3 a of the immersion heater 3 arranged at the inner bottom portion of the heating pot 1, and its temperature control is performed by the heating pot. It is performed by an operation by the control panel 6 arranged on the outer side of the door 1.
【００１０】 而して、使用に際しては、加熱用ポット１内の塩浴４を予め浸漬ヒーター３で もって所定の温度（例えばアルミダイカト鋳物の場合には、５００℃〜５４０℃ 程度）にしておき、被検査用の鋳物を収容した浸漬用籠７を加熱用ポット１内の 塩浴４中に浸漬させる。In use, the salt bath 4 in the heating pot 1 is preliminarily heated by the immersion heater 3 to a predetermined temperature (for example, about 500 ° C. to 540 ° C. in the case of aluminum die-cast casting), An immersion basket 7 containing a casting to be inspected is immersed in the salt bath 4 in the heating pot 1.
【００１１】 すると、被検査用の鋳物の材質や肉厚によっても多少異なるが、アルミダイカ スト鋳物の場合には、肉厚が１０ｍｍ程度なら浸漬後約１分で、肉厚が４０ｍｍ 程度でも浸漬後約３分で塩浴４の温度と同じ温度に加熱され、その結果、鋳物中 に鋳巣が存在すれば、その鋳物の表面に「ふくれ（ブリスタ）」として現出する ようになる。Then, although it depends on the material and wall thickness of the casting to be inspected, in the case of aluminum die casting, if the wall thickness is about 10 mm, it takes about 1 minute after immersion, and even if the wall thickness is about 40 mm, It is heated to the same temperature as the temperature of the salt bath 4 in about 3 minutes, and as a result, if there are cavities in the casting, they will appear as "blisters" on the surface of the casting.
【００１２】 他方、被検査用の鋳物を加熱用ポット１内の塩浴４中に浸漬させる前後または 浸漬中に、必要に応じて、駆動シリンダ５を動作せしめて浸漬ヒーター３を何回 か上下方向に揺動させて、加熱用ポット１内の塩浴４を撹拌し、塩浴４の温度の バラツキをなくして被検査用の鋳物を万遍なく均等に加熱するようにする。On the other hand, before or after the casting to be inspected is dipped in the salt bath 4 in the heating pot 1, or during the dipping, the driving cylinder 5 is operated to move the immersion heater 3 up and down several times as necessary. The salt bath 4 in the heating pot 1 is swung in the direction to stir the salt bath 4 so that the temperature of the salt bath 4 does not fluctuate and the casting to be inspected is uniformly heated.
【００１３】[0013]
本考案の請求項１記載の鋳物のブリスタ検出機は、加熱用ポット内に浸漬ヒー ターを上下動自在に設置せしめたので、加熱用ポット内の塩浴を温度を低下させ ることなく撹拌して塩浴温度の均一化を図ることが出来る。従って、加熱用ポッ ト内の被検査用の鋳物を万遍なく均等に加熱することが出来、短時間で且つ正確 に鋳物のふくれ（ブリスタ）を検査することが可能となる。 ちなみに、同一の鋳物を用いてブリスタ試験を行なったところ、本考案では１ 〜３分で試験結果が得られたが、従来の熱風式装置では１時間以上かかった。 In the casting blister detector according to claim 1 of the present invention, since the immersion heater is installed in the heating pot so as to be vertically movable, the salt bath in the heating pot is stirred without lowering the temperature. The temperature of the salt bath can be made uniform. Therefore, the casting to be inspected in the heating pot can be evenly and evenly heated, and the blister of the casting can be inspected accurately in a short time. By the way, when a blister test was carried out using the same casting, the test result was obtained in 1 to 3 minutes in the present invention, but it took 1 hour or more in the conventional hot air type apparatus.
【００１４】 また、本考案の請求項２記載の鋳物のブリスタ検出機は、浸漬ヒーターを加熱 用ポットの上縁部に設置せしめた駆動シリンダに連結取付けてなるので、設備的 に浸漬ヒーターと駆動シリンダとを一体化させることが可能となり、その結果、 安価に製造することが出来るFurther, the casting blister detector according to the second aspect of the present invention is configured such that the immersion heater is connected and attached to the drive cylinder installed on the upper edge portion of the heating pot, so that the immersion heater and the drive are installed as a facility. It becomes possible to integrate it with the cylinder, and as a result, it can be manufactured at low cost.
【００１５】 また、本考案の請求項３記載の鋳物のブリスタ検出機は、浸漬ヒーターを加熱 用ポットの内周形状にほぼ沿う平面略円形ないしは楕円形状に形成してなるので 、加熱用ポット内に被検査用の鋳物を浸漬させたままの状態でも浸漬ヒーターを 上下に動作させることが可能となる。Further, in the casting blister detector according to claim 3 of the present invention, the immersion heater is formed in a substantially circular plane or an elliptical shape substantially along the inner peripheral shape of the heating pot. It is possible to operate the immersion heater up and down even when the casting to be inspected is still immersed.
【図１】 本考案実施の一例を示す断面図。FIG. 1 is a cross-sectional view showing an example of the present invention.
【図２】 図１の一部切欠平面図。FIG. 2 is a partially cutaway plan view of FIG.
１：加熱用ポット ２：保温材 ３：浸漬ヒーター ４：塩浴 ５：駆動シリンダ ６：操作盤 ７：浸漬用籠 1: Pot for heating 2: Heat insulating material 3: Immersion heater 4: Salt bath 5: Driving cylinder 6: Operation panel 7: Immersion basket
Claims (3)
せてなる塩浴を収容せしめ、該塩浴中に被検査用の鋳物
を浸漬して加熱するようにした鋳物のブリスタ検出機に
おいて、前記加熱用ポット内に浸漬ヒーターを上下動自
在に設置せしめてなる事を特徴とした鋳物のブリスタ検
出機。1. A blister detector for a casting, wherein a salt bath made by heating and melting a nitrate is contained in a heating pot, and the casting to be inspected is immersed in the salt bath for heating. A casting blister detector characterized in that an immersion heater is installed vertically in the heating pot.
の上縁部に設置せしめた駆動シリンダに連結取付けて上
下動自在とした事を特徴とする請求項１記載の鋳物のブ
リスタ検出機。2. The blister detector for a casting according to claim 1, wherein the immersion heater is connected and attached to a drive cylinder placed at an upper edge portion of the heating pot so as to be vertically movable.
の内周形状にほぼ沿う平面略円形ないしは楕円形状に形
成してなる事を特徴とした請求項１記載の鋳物のブリス
タ検出機。3. The blister detector for a casting according to claim 1, wherein the immersion heater is formed in a substantially circular plane or an elliptical shape substantially along the inner peripheral shape of the heating pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994012938U JP3010436U (en) | 1994-10-20 | 1994-10-20 | Blister detector for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994012938U JP3010436U (en) | 1994-10-20 | 1994-10-20 | Blister detector for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3010436U true JP3010436U (en) | 1995-05-02 |
Family
ID=43146199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1994012938U Expired - Lifetime JP3010436U (en) | 1994-10-20 | 1994-10-20 | Blister detector for casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3010436U (en) |
-
1994
- 1994-10-20 JP JP1994012938U patent/JP3010436U/en not_active Expired - Lifetime
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