JP2889743B2 - Manufacturing method of thin precious metal pipe parts - Google Patents

Manufacturing method of thin precious metal pipe parts

Info

Publication number
JP2889743B2
JP2889743B2 JP20843691A JP20843691A JP2889743B2 JP 2889743 B2 JP2889743 B2 JP 2889743B2 JP 20843691 A JP20843691 A JP 20843691A JP 20843691 A JP20843691 A JP 20843691A JP 2889743 B2 JP2889743 B2 JP 2889743B2
Authority
JP
Japan
Prior art keywords
pipe
thin
metal pipe
noble metal
precious metal
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
Application number
JP20843691A
Other languages
Japanese (ja)
Other versions
JPH0531632A (en
Inventor
明男 先原
春樹 山嵜
Original Assignee
田中貴金属工業株式会社
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 田中貴金属工業株式会社 filed Critical 田中貴金属工業株式会社
Priority to JP20843691A priority Critical patent/JP2889743B2/en
Publication of JPH0531632A publication Critical patent/JPH0531632A/en
Application granted granted Critical
Publication of JP2889743B2 publication Critical patent/JP2889743B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【産業上の利用分野】本発明は、医療用、装身具用等の
薄肉貴金属パイプ部品の製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a thin-walled noble metal pipe part for medical use, accessories, etc.
【0002】[0002]
【従来の技術】従来、薄肉貴金属パイプ部品を製造する
には、自動盤で図6に示す無垢の貴金属棒1をドリルで
切削加工して図7に示すように孔2を穿設してパイプ部
分3を形成し、次のこのパイプ部分3の外周をバイトで
図8に示すように所要の形状に加工し、次いでこの外形
加工したパイプ4を図9に示すように切り落として薄肉
貴金属パイプ部品5を得ていた。
2. Description of the Related Art Conventionally, in order to manufacture a thin-walled precious metal pipe part, a pure precious metal rod 1 shown in FIG. 6 is cut by a drill using an automatic lathe to form a hole 2 as shown in FIG. A portion 3 is formed, and the outer periphery of the next pipe portion 3 is machined with a cutting tool into a required shape as shown in FIG. 8, and then the outer processed pipe 4 is cut off as shown in FIG. 5 had been obtained.
【0003】ところで、上記の薄肉貴金属パイプ部品の
製造方法では、無垢の貴金属棒1を切削加工して孔2を
穿設すると、パイプ部分3の外形の中心と孔2の中心と
が芯ずれすることが多い。またパイプ部分3の外周を所
要の形状に加工したパイプ4の薄肉の部分4aは図10に
示すように変形したり、図11に示すように破れたりする
ことがある。特に外径が2mmで内径が 1.9mm以上、つま
り肉厚が0.05mm以下になると、殆んど上記の変形、破れ
が発生する。
In the above-described method for manufacturing a thin noble metal pipe part, when a hole is formed by cutting a solid noble metal rod 1, the center of the outer shape of the pipe portion 3 and the center of the hole 2 are misaligned. Often. Further, the thin portion 4a of the pipe 4 obtained by processing the outer periphery of the pipe portion 3 into a required shape may be deformed as shown in FIG. 10 or broken as shown in FIG. In particular, when the outer diameter is 2 mm and the inner diameter is 1.9 mm or more, that is, when the wall thickness is 0.05 mm or less, almost the above deformation and tearing occur.
【0004】[0004]
【発明が解決しようとする課題】そこで本発明は、パイ
プの内外径の中心に芯ずれがなく、またパイプの薄肉部
分に変形、破れのない薄肉貴金属パイプ部品を作ること
のできる方法を提供しようとするものである。
SUMMARY OF THE INVENTION Accordingly, the present invention is to provide a method for producing a thin-walled noble metal pipe part in which the center of the inner and outer diameters of the pipe is not misaligned and the thin part of the pipe is not deformed or broken. It is assumed that.
【0005】[0005]
【課題を解決するための手段】上記課題を解決するため
の本発明の薄肉貴金属パイプ部品の製造方法は、貴金属
パイプ内にCuパイプを嵌入し、次に所要の外径、内径
に伸管加工してクラッドパイプとなし、次いでこのクラ
ッドパイプの外周を所要の形状に加工し、然る後所要の
長さに切り落とし、Cuパイプを薬品で除去することを
特徴とするものである。
According to the present invention, there is provided a method for manufacturing a thin-walled noble metal pipe part, which comprises inserting a Cu pipe into a noble metal pipe, and then drawing the pipe to a required outer diameter and inner diameter. Then, the outer periphery of the clad pipe is processed into a required shape, cut off to a required length, and the Cu pipe is removed with a chemical.
【0006】[0006]
【作用】上記のように本発明の薄肉貴金属パイプ部品の
製造方法では、当初より貴金属パイプを用いるので、従
来のように貴金属棒を切削加工して孔を穿設する必要が
なく、従ってパイプの内外径の中心に芯ずれが生じるこ
とがない。また外周を所要の形状に加工する際、貴金属
パイプの内周面にCuパイプがクラッドされているの
で、強度を有し、従って外径加工による材料のフレが防
止され、変形、破れが生じない。
As described above, in the method for manufacturing a thin-walled noble metal pipe part of the present invention, since a noble metal pipe is used from the beginning, it is not necessary to cut a noble metal rod to form a hole as in the prior art. No misalignment occurs at the center of the inner and outer diameters. Also, when processing the outer periphery into a required shape, since the Cu pipe is clad on the inner peripheral surface of the noble metal pipe, it has strength, and therefore, the material is prevented from being deformed due to outer diameter processing, and deformation and breakage do not occur. .
【0007】[0007]
【実施例】本発明の薄肉貴金属パイプ部品の製造方法の
一実施例を図によって説明すると、図1に示す内径 1.9
mm、外径 2.2mmのAuパイプ6内に内径1.02mm、外径1.
72mmのCuパイプ7を嵌入し、次にこれを伸管加工して
図2に示すように内径1.0mm、外径 2.0mm、外側のAu
の厚さ 0.1mmのクラッドパイプ8となし、次いでこのク
ラッドパイプ8の外周を図3に示すようにバイトにより
所要の形状に切削加工して外径 1.8mmの薄肉部分8aを
形成し、然る後図4に示すように長さ20mmに順次切り落
とし、この成形パイプ9を10%硝酸液に30分間浸漬して
図5に示すように内側のCuを溶解除去して薄肉貴金属
パイプ部品10を得た。
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the method for producing a thin precious metal pipe part of the present invention will be described with reference to the drawings.
1.02mm inner diameter and 1.
A 72 mm Cu pipe 7 is inserted and then drawn to form a tube, as shown in FIG. 2, having an inner diameter of 1.0 mm, an outer diameter of 2.0 mm, and an outer Au.
A clad pipe 8 having a thickness of 0.1 mm is formed, and then the outer periphery of the clad pipe 8 is cut into a required shape with a cutting tool as shown in FIG. 3 to form a thin portion 8a having an outer diameter of 1.8 mm. Then, as shown in FIG. 4, the molded pipe 9 is sequentially cut off to a length of 20 mm, and the molded pipe 9 is immersed in a 10% nitric acid solution for 30 minutes to dissolve and remove the inner Cu as shown in FIG. Was.
【0008】こうして得た薄肉貴金属パイプ部品10を 1
00個検査した処、内径の中心と外径の中心とが芯ずれし
ているものは皆無であった。また薄肉部分8aには変
形、破れが、全く発生していなかった。
The thin precious metal pipe part 10 thus obtained is
Inspection of 00 pieces showed that there was no misalignment between the center of the inner diameter and the center of the outer diameter. Also, no deformation or tearing occurred in the thin portion 8a.
【0009】[0009]
【発明の効果】以上の通り本発明の薄肉貴金属パイプ部
品の製造方法によれば、パイプの内外径の中心に芯ずれ
がなく、またパイプの薄肉部分に変形、破れのない薄肉
貴金属パイプ部品を容易に作ることができる。
As described above, according to the method for manufacturing a thin-walled noble metal pipe part of the present invention, a thin-walled noble metal pipe part having no center misalignment at the center of the inner and outer diameters of the pipe and having no deformation or breakage in the thin part of the pipe can be obtained. Can be easily made.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の薄肉貴金属パイプ部品の製造方法の工
程を示す図である。
FIG. 1 is a diagram showing steps of a method for manufacturing a thin-walled noble metal pipe part of the present invention.
【図2】本発明の薄肉貴金属パイプ部品の製造方法の工
程を示す図である。
FIG. 2 is a view showing steps of a method for manufacturing a thin precious metal pipe part of the present invention.
【図3】本発明の薄肉貴金属パイプ部品の製造方法の工
程を示す図である。
FIG. 3 is a diagram showing steps of a method for manufacturing a thin precious metal pipe part of the present invention.
【図4】本発明の薄肉貴金属パイプ部品の製造方法の工
程を示す図である。
FIG. 4 is a diagram showing steps of a method for producing a thin precious metal pipe part of the present invention.
【図5】本発明の薄肉貴金属パイプ部品の製造方法の工
程を示す図である。
FIG. 5 is a diagram showing steps of a method for manufacturing a thin-walled noble metal pipe part of the present invention.
【図6】従来の薄肉貴金属パイプ部品の製造方法の工程
を示す図である。
FIG. 6 is a view showing steps of a conventional method for manufacturing a thin-walled noble metal pipe part.
【図7】従来の薄肉貴金属パイプ部品の製造方法の工程
を示す図である。
FIG. 7 is a diagram showing steps of a conventional method for manufacturing a thin-walled noble metal pipe part.
【図8】従来の薄肉貴金属パイプ部品の製造方法の工程
を示す図である。
FIG. 8 is a diagram showing steps of a conventional method for manufacturing a thin-walled noble metal pipe part.
【図9】従来の薄肉貴金属パイプ部品の製造方法の工程
を示す図である。
FIG. 9 is a diagram showing steps of a conventional method for manufacturing a thin precious metal pipe part.
【図10】従来の製造方法により得た薄肉貴金属パイプ部
品の欠陥を示す図である。
FIG. 10 is a view showing defects of a thin-walled noble metal pipe part obtained by a conventional manufacturing method.
【図11】同じく従来の製造方法により得た薄肉貴金属パ
イプ部品の欠陥を示す図である。
FIG. 11 is a view showing a defect of a thin-walled noble metal pipe part similarly obtained by a conventional manufacturing method.
【符号の説明】[Explanation of symbols]
6 貴金属(Au)パイプ 7 Cuパイプ 8 クラッドパイプ 8a 薄肉部分 9 成形パイプ 10 薄肉貴金属パイプ部品 6 Precious metal (Au) pipe 7 Cu pipe 8 Clad pipe 8a Thin part 9 Molded pipe 10 Thin precious metal pipe part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) B23P 13/00 B23P 15/00 B23P 17/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) B23P 13/00 B23P 15/00 B23P 17/00

Claims (1)

    (57)【特許請求の範囲】(57) [Claims]
  1. 【請求項1】 貴金属パイプ内にCuパイプを嵌入し、
    次に所要の外径、内径に伸管加工してクラッドパイプと
    なし、次いでこのクラッドパイプの外周を所要の形状に
    加工し、然る後所要の長さに切り落とし、Cuパイプを
    薬品で除去することを特徴とする薄肉貴金属パイプ部品
    の製造方法。
    1. A copper pipe is inserted into a noble metal pipe,
    Next, it is formed into a clad pipe by drawing to a required outer diameter and inner diameter, and then the outer periphery of the clad pipe is processed into a required shape, then cut off to a required length, and the Cu pipe is removed with a chemical. A method for producing a thin-walled noble metal pipe part, characterized in that:
JP20843691A 1991-07-25 1991-07-25 Manufacturing method of thin precious metal pipe parts Expired - Lifetime JP2889743B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20843691A JP2889743B2 (en) 1991-07-25 1991-07-25 Manufacturing method of thin precious metal pipe parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20843691A JP2889743B2 (en) 1991-07-25 1991-07-25 Manufacturing method of thin precious metal pipe parts

Publications (2)

Publication Number Publication Date
JPH0531632A JPH0531632A (en) 1993-02-09
JP2889743B2 true JP2889743B2 (en) 1999-05-10

Family

ID=16556181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20843691A Expired - Lifetime JP2889743B2 (en) 1991-07-25 1991-07-25 Manufacturing method of thin precious metal pipe parts

Country Status (1)

Country Link
JP (1) JP2889743B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497065B1 (en) 1999-05-14 2002-12-24 Michaels Of Oregon Co. Firearm barrel having protective sleeve
JP5192759B2 (en) * 2007-08-29 2013-05-08 株式会社徳力本店 Manufacturing method of fine thin precious metal pipe
CN104625594B (en) * 2013-11-14 2018-06-08 上海飞轮有色新材料股份有限公司 The method of manufacturing technology of rotor of large turbo-type generator profiled-cross-section connector copper pipe
CN103639655B (en) * 2013-11-28 2016-08-17 江西洪都航空工业集团有限责任公司 A kind of manufacturing process of high-curvature full-profile thin-wall part
CN105414890B (en) * 2015-11-24 2017-11-17 沈阳黎明航空发动机(集团)有限责任公司 A kind of thin-wallconduit method for fine finishing
CN110449848A (en) * 2019-09-23 2019-11-15 沈阳三科核电设备制造股份有限公司 A kind of processing technology of built-up welding Si Taili hard alloy thin-walled set

Also Published As

Publication number Publication date
JPH0531632A (en) 1993-02-09

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