JPS62254044A - Inspection for defect of cast product - Google Patents
Inspection for defect of cast productInfo
- Publication number
- JPS62254044A JPS62254044A JP9754786A JP9754786A JPS62254044A JP S62254044 A JPS62254044 A JP S62254044A JP 9754786 A JP9754786 A JP 9754786A JP 9754786 A JP9754786 A JP 9754786A JP S62254044 A JPS62254044 A JP S62254044A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- defect
- dried
- product
- cast product
- 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
Links
- 230000007547 defect Effects 0.000 title claims abstract description 17
- 238000007689 inspection Methods 0.000 title description 5
- 238000000034 method Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims description 8
- 229910001018 Cast iron Inorganic materials 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000010306 acid treatment Methods 0.000 abstract description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 2
- 238000001035 drying Methods 0.000 description 5
- 238000005238 degreasing Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000013351 cheese Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鋳物製の継手、その他種々の鋳物製品のワレ
や傷や巣等の欠陥を検査する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for inspecting cast joints and various other cast products for defects such as cracks, scratches, and cavities.
従来、この種の鋳物製品では時たまの火きとり検査は可
能であっても、１コント毎乃至全数検査は不可能であり
、行なわれていなか、った。Conventionally, with this type of cast iron product, even if it is possible to conduct an occasional ignition inspection, it is impossible to conduct a 100% inspection every time, and it has not been carried out.
検査方法が従来は特別な手順を必要とし、極めて面倒で
あったからである。This is because conventional testing methods required special procedures and were extremely troublesome.
そのため、配管後に流体の漏洩を住する等の問題点を生
じた。Therefore, problems such as fluid leakage occurred after piping.
Ｌ問題点を解決するための手段〕
本発明に係る鋳物製品の欠陥検査方法は、鋳物製品の表
面に油を付着さゼ、その後、その表面の油を脱脂し、熱
湯洗條して後、乾燥させ、ワレや傷等の欠陥部位内部る
こ浸透していた浦の乾燥表面部−・のにじみを目視観察
にて検査するものである。Means for Solving Problem L] The defect inspection method for casting products according to the present invention involves depositing oil on the surface of the casting product, then degreasing the oil on the surface, and washing with hot water. After drying, the dried surface of the ura, which has penetrated into defective areas such as cracks and scratches, is inspected by visual observation.
乾燥させた鋳物表面に、欠陥内部からの浦がしだいにに
じみ出してくれば、乾燥した部分よりも暗色となって、
十分に目視にてにじみ部の発見が出来る。If the ura from inside the defect gradually oozes out onto the surface of the dried casting, it will become darker in color than the dry part.
The bleeding area can be detected with sufficient visual inspection.
以下、実施例に基づき本発明を説明」−る。 The present invention will be explained below based on examples.
第１図に於て、１は簡略化して示した鋳物製品であり、
図示省熱するが端部間「コ部には予め機械加工にてネジ
切゛りされており、しがも、チーズ形やエルボＪｌ；’
、ソゲソト、ニップル等と１、また種ノ？の鋳物製継手
である。In Fig. 1, 1 is a simplified casting product,
Although the diagram shows heat saving, the part between the ends is pre-threaded by machine processing, so it does not have a cheese shape or an elbow.
, sogesoto, nipple etc. 1, seed again? This is a cast iron fitting.
ごの鋳物製品１をまず防錆処理１稈にて油に漬けてその
表面（内周面を含む）の全体にｎｈを（＝１着させる。First, the cast iron product 1 is immersed in oil for rust prevention treatment, and the entire surface (including the inner peripheral surface) is coated with nh (=1).
通常はベルトコンヘア等にて多数の鋳物製品を搬送し２
つつ、油槽内へ浸漬すると共に、〜・定時間後に同コン
ヘア等の走行に伴って空気中に出る。Usually, a large number of cast products are transported using belt conveyors, etc.
At the same time, it is immersed in the oil tank, and after a certain period of time, it comes out into the air as the hair conditioner moves.
次に、その表面に付着した油を脱脂する。（これを脱脂
工程と呼ぶ。）続いて、リン酸処理（ボン声ライト処理
）を行ってから、熱湯に漬げて洗條し、これを取出せば
温められているから自然に鋳物製品の表面は乾燥するく
乾燥工程）。Next, the oil adhering to the surface is degreased. (This is called the degreasing process.) Next, after performing phosphoric acid treatment (bonsei light treatment), it is soaked in boiling water and washed. When taken out, the surface of the cast iron product is naturally warmed. drying process).
この乾燥工程の後、３０分以上放置しておくと、この放
置時間内に、第１図に示すよ・うに、ワ］・や傷等の欠
陥２が存在した場合に、この欠陥２の周囲ににじみ３（
同図中点々で示す）が生じ、他の乾燥表面部４とは、目
視観察にて明らかに区別することが出来る。つまり、前
記乾燥工程後も、ワレや傷等の欠陥２部位の内部には、
浦が残留しており、この残留分が乾燥表面部４へ、にじ
み出ずのであり、線状のワレの場合には、帯状のにじみ
３が発生Ｊる。After this drying process, if the drying process is left for 30 minutes or more, as shown in Figure 1, if there is a defect 2 such as a wa] or scratch, the area around this defect 2 will be removed. Nijimi 3 (
(shown as dots in the figure), which can be clearly distinguished from other dry surface portions 4 by visual observation. In other words, even after the drying process, inside the two defects such as cracks and scratches,
This residual amount does not ooze out onto the dry surface portion 4, and in the case of linear cracks, band-like oozes 3 occur.
な４″９、その後は、必要に応じて内周向に樹脂コ・−
ティングを（静電塗装等により）行なう。4"9, then apply the resin coat in the inner circumferential direction as necessary.
(by electrostatic painting, etc.).
次に、別の実施例を説明すると、鋳造後の５Ｆよ（機械
加重Ｖずに）、順次、浦のイ・１着処理−・脱脂処理−
・熱湯浸漬−・３０分以」二の乾燥を行なっＣから、。Next, to explain another example, from 5F after casting (without mechanical load V), Ura no I, 1st wear treatment, degreasing treatment, etc.
・Immerse in boiling water for at least 30 minutes” 2. Dry from step C.
目視にて第１図と同様にに（づみ３の有無をチェックす
る。Visually check the presence or absence of the thread 3 in the same manner as in Figure 1.
その後、必要に応じζメッキ処理を行ない、あるいはこ
のメッキを省略し２、次に、ネジリ〕りを行なって、前
述の６種８「下を完成する。After that, perform ζ plating treatment as necessary, or omit this plating (2), and then perform twisting to complete the above-mentioned 6 types 8 "bottom".
本発明は」二連の構成により次のよ・）な著大な効果を
奏すイ）。The present invention achieves the following significant effects through its dual configuration.
■ ロット全体乃至製品全数の検査を、製造工程の流れ
に伴って容易に行な・うことが出来る。■ It is possible to easily inspect the entire lot or product in accordance with the flow of the manufacturing process.
■ 鋳物製品として、例えば継手等の内面の欠陥を、容
易に、かつ特殊な薬剤等を用いることなく、行なうこと
が可能となった。■ As a cast product, it has become possible to repair defects on the inner surface of joints and the like easily and without using special chemicals.
■ 鋳物製品の防錆と、（樹脂コーティングｉｉＪの）
脱脂を、行ないながら、欠陥の検査も同時に進めること
が出来て、確実、簡便かつ経済的に欠陥を検出する方法
である。■ Rust prevention of cast products and (resin coating IIJ)
This is a reliable, simple, and economical method for detecting defects, since it is possible to perform defect inspection at the same time as degreasing.
第１図は本発明を説明するための一部破断斜視図である
。
１・・・鋳物製品、２・・・欠陥、３・・・にじみ、４
・・・鋳物表面部。
特 許 出 願 人 東尾継手株式会社第１図FIG. 1 is a partially cutaway perspective view for explaining the present invention. 1... Casting product, 2... Defect, 3... Bleeding, 4
...casting surface. Patent applicant Higashio Tsugugi Co., Ltd. Figure 1
Claims (1)
の油を脱脂し、熱湯洗條して後、乾燥させ、ワレや傷等
の欠陥部位内部に浸透していた油の乾燥表面部へのにじ
みを目視観察にて検査することを特徴とする鋳物製品の
欠陥検査方法。1. Apply oil to the surface of a casting product, then degrease the surface oil, wash with hot water, and then dry to remove the dried surface of the oil that has penetrated into defects such as cracks and scratches. A method for inspecting defects in cast iron products, which is characterized by visually inspecting for bleeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9754786A JPS62254044A (en) | 1986-04-25 | 1986-04-25 | Inspection for defect of cast product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9754786A JPS62254044A (en) | 1986-04-25 | 1986-04-25 | Inspection for defect of cast product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62254044A true JPS62254044A (en) | 1987-11-05 |
Family
ID=14195265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9754786A Pending JPS62254044A (en) | 1986-04-25 | 1986-04-25 | Inspection for defect of cast product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62254044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060670A (en) * | 2019-12-18 | 2020-04-24 | 无锡隆达金属材料有限公司 | Method for detecting crack defects on inner surface of nickel-based alloy pierced billet by acid cleaning |
-
1986
- 1986-04-25 JP JP9754786A patent/JPS62254044A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060670A (en) * | 2019-12-18 | 2020-04-24 | 无锡隆达金属材料有限公司 | Method for detecting crack defects on inner surface of nickel-based alloy pierced billet by acid cleaning |
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