JPH0150514B2 - - Google Patents
Info
- Publication number
- JPH0150514B2 JPH0150514B2 JP22160682A JP22160682A JPH0150514B2 JP H0150514 B2 JPH0150514 B2 JP H0150514B2 JP 22160682 A JP22160682 A JP 22160682A JP 22160682 A JP22160682 A JP 22160682A JP H0150514 B2 JPH0150514 B2 JP H0150514B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- outer skin
- skin material
- diameter
- core material
- 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
Links
- 239000000463 material Substances 0.000 claims description 34
- 239000011162 core material Substances 0.000 claims description 15
- 238000010622 cold drawing Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 8
- 238000005098 hot rolling Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000001192 hot extrusion Methods 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 238000000137 annealing Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Metal Extraction Processes (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
この発明は、高強度、良導電性を有し、かつ耐
食性にすぐれたTiクラツド線材の製造方法に関
する。
Cu、Cu合金並にAl、Al合金等の良導電性ばね
材料の耐食性のすぐれたTi、Ti合金を該ばね材
料の外表面に被覆したTiクラツド線材の製造法
としては、従来前記ばね材料の心材の外表面に
Ti、Ti合金を外皮材として嵌合し引抜きによる
絞り加工を施した後、焼なましする方法や、特公
昭51−25433号公報に記載された心材に外皮材を
嵌合した後引抜き絞り加工する方法に代えて、ス
エージング絞り加工を適用した後焼なましする方
法等が提案されている。しかし、いずれの方法に
おいても、心材と外皮材からなるクラツド金属間
界面の拡散結合が弱いため、Tiクラツド線材の
接合強度が低く、かつ冷間絞り加工による縮径の
ため、外皮材素材としては精々最大外径20mmのも
のしか使用できないため多量生産が出来ず生産性
の向上に大きな障害となつていた。
この発明は、かかる欠点を除いてTiクラツド
線材の心材と外皮材の接合強度が大きく、かつ生
産性のすぐれた製造方法を提案するものであり、
その特徴は心材と外皮材を冷間絞り加工を行つた
後嵌合材の両端部に摩擦圧接によりTi、Ti合金
板を溶接して熱間圧延あるいは熱間押出を施すこ
とにある。
すなわち、この発明は、Cu、Cu合金並びに
Al、Al合金の心材にパイプ状のTi、Ti合金を外
皮材として嵌合し冷間絞り加工を行ない、該嵌合
材の両端部に摩擦圧接によりTi、Ti合金板を溶
接した後、加熱して600〜750℃の温度範囲で熱間
圧延或は熱間押出しを行ない、引続き酸洗、冷間
線引することを要旨とする。
この発明において、心材と外皮材を嵌合した
後、冷間絞り加工することは、心材と外皮材界面
の空気の放出、及び後続の熱処理時のTi外皮材
内面の酸化を防止できる程度の減径率でよく、必
ずしも大減径率を必要とせず、生産性向上の点か
ら減径率は10〜15％が好ましい。
又嵌合材の両端部をTi板で溶接封止するのは、
後続の熱処理中の界面酸化防止と共に、熱間圧延
時心材のずれによる外皮材の破断を防止するのに
重要である。なお、この溶接封止においては、外
皮材のTi、Ti合金がFe、Ni系等の合金に比べ一
般の電気溶接により溶接することが困難で、コス
ト高となるため、Ti、Ti合金からなる部材同志
の溶接が簡単にかつ安価にできる摩擦圧接法が好
ましいのである。
この発明は冷間絞り加工後に嵌合材の両端部を
溶接封止して熱間圧延或は熱間押出しの熱間加工
を施すため、従来の冷間絞り加工と熱処理により
拡散結合させたTiクラツド材に比べ、すぐれた
接合強度がえられ、又減径率が著しく向上するた
め加工費が低減し、さらに100mmφ以上の大径素
材の使用が可能で線材のみならず棒材の製造もで
き生産性の向上が著しい。
この熱間圧延あるいは押出時の加熱温度は600
℃未満では外皮材と心材の界面で十分な拡散結合
が行われず、又750℃を超えると界面に脆い金属
間化合物が析出し、外皮材と心材の境界剥離の原
因となり好ましくないので、600〜750℃に限定し
た。
次に、この発明の実施例について説明する。
外径100mmφ、内径80mmφ、長さ1000mmのTiパ
イプ内に直径が78mm、長さ1000mmのCu−２％Be
棒を挿入して嵌合し、1000ton油圧プレスにより
上記嵌合材の外径を94mmまで冷間絞り加工を行な
つた。そして、上記加工嵌合材の両端部に外径94
mm、厚み50mmのTi板を回転数1800rpm、アブセ
ツト圧力100Kg／cm2の条件で摩擦圧接した。次い
で、加熱炉で650℃×3hrの条件で加熱して熱間圧
延を行ない外径９mmまで減径した。そして、さら
に酸洗して酸化スケール及び熱延傷を除去した
後、所定の外径３mmまで冷間線引と軟化焼なまし
を繰返して減径し、アルゴンガス雰囲気中で700
℃×3M／分の条件で軟化焼なましを施して仕上
げた。その後、用途に従つて所要寸法に切断加工
し、315℃×5hrアルゴン雰囲気中で時効硬化処理
を行ない、高強度、良導電性及び高ばね特性を有
し、かつ耐食性のすぐれたTiクラツド線材をえ
た。
上記によりえられたTiクラツド線材から外径
３mm、長さ200mmの試料50個を採取し、又比較の
ため従来法の冷間絞り加工と焼なましにより同寸
法で作られた試料50個を作り、つぶし加工試験を
行ない心材と外皮材の剥離状況を調べた。なお、
この際の試験はプレスにより試験片を厚さ0.5mm
の板につぶした後断面を観察して境界剥離を起し
ている試験片の数を調べた。その結果を第１表に
示す。
The present invention relates to a method for manufacturing a Ti-clad wire having high strength, good conductivity, and excellent corrosion resistance. Conventionally, the method for producing Ti-clad wire rods in which the outer surface of spring materials is coated with Ti and Ti alloys, which have excellent corrosion resistance and are highly conductive spring materials such as Cu and Cu alloys as well as Al and Al alloys, has been used. on the outer surface of the heartwood
There is a method in which Ti or Ti alloy is fitted as an outer skin material and subjected to drawing processing by drawing, followed by annealing, or a method in which a skin material is fitted to a core material and then drawing processing is performed after fitting the outer skin material to the core material described in Japanese Patent Publication No. 51-25433. Instead of this method, a method of applying swaging drawing and then annealing has been proposed. However, in either method, the bonding strength of the Ti clad wire is low due to weak diffusion bonding at the interface between the clad metals consisting of the core and outer skin materials, and the diameter is reduced due to cold drawing, making it difficult to use as a material for the outer skin material. Since only those with a maximum outer diameter of 20 mm could be used, mass production was not possible and this was a major obstacle to improving productivity. This invention proposes a manufacturing method that eliminates these drawbacks, has high bonding strength between the core material and the outer skin material of Ti-clad wire, and has excellent productivity.
Its feature is that after the core material and the outer skin material are cold-drawn, Ti and Ti alloy plates are welded to both ends of the mating material by friction welding and then hot-rolled or hot-extruded. That is, this invention applies to Cu, Cu alloys, and
A pipe-shaped Ti or Ti alloy is fitted as an outer skin material to an Al or Al alloy core material, cold drawing is performed, Ti or Ti alloy plates are welded to both ends of the fitted material by friction welding, and then heated. The gist is to perform hot rolling or hot extrusion at a temperature range of 600 to 750°C, followed by pickling and cold drawing. In this invention, after the core material and the outer skin material are fitted together, cold drawing is performed to reduce the amount of air released at the interface between the core material and the outer skin material and to prevent oxidation of the inner surface of the Ti outer skin material during the subsequent heat treatment. A diameter reduction rate may be sufficient, and a large diameter reduction rate is not necessarily required, and from the viewpoint of improving productivity, the diameter reduction rate is preferably 10 to 15%. Also, welding and sealing both ends of the mating material with Ti plates is
This is important for preventing interfacial oxidation during subsequent heat treatment as well as for preventing breakage of the outer skin material due to displacement of the core material during hot rolling. In addition, in this welding sealing, Ti and Ti alloys of the outer skin material are difficult to weld by general electric welding compared to alloys such as Fe and Ni, and the cost is high. Friction welding is preferable because it allows welding of parts together easily and inexpensively. In this invention, both ends of the fitting material are welded and sealed after cold drawing and hot processing such as hot rolling or hot extrusion is performed. Compared to clad materials, it provides superior bonding strength and significantly improves the diameter reduction rate, reducing processing costs.Furthermore, it is possible to use large diameter materials of 100mmφ or more, making it possible to manufacture not only wire rods but also bar materials. Productivity has improved significantly. The heating temperature during hot rolling or extrusion is 600°C.
If the temperature is below 750°C, sufficient diffusion bonding will not occur at the interface between the skin material and the core material, and if it exceeds 750°C, brittle intermetallic compounds will precipitate at the interface, causing delamination at the boundary between the skin material and the core material, which is undesirable. The temperature was limited to 750℃. Next, embodiments of the invention will be described. Cu-2% Be with a diameter of 78 mm and a length of 1000 mm is placed inside a Ti pipe with an outer diameter of 100 mmφ, an inner diameter of 80 mmφ, and a length of 1000 mm.
A rod was inserted and fitted, and the fitting material was cold drawn to an outer diameter of 94 mm using a 1000 ton hydraulic press. Then, the outer diameter of 94 mm is attached to both ends of the above-mentioned processed fitting material.
Ti plates with a diameter of 50 mm and a thickness of 50 mm were friction welded under the conditions of a rotation speed of 1800 rpm and an offset pressure of 100 Kg/cm 2 . Next, the material was heated in a heating furnace at 650° C. for 3 hours to perform hot rolling to reduce the outer diameter to 9 mm. After further pickling to remove oxide scale and hot rolling scratches, the diameter was reduced by repeating cold drawing and softening annealing to a predetermined outer diameter of 3 mm, and the diameter was reduced to 700 mm in an argon gas atmosphere.
Finished by softening annealing under the conditions of ℃ x 3M/min. After that, it is cut into the required dimensions according to the application, and subjected to age hardening treatment in an argon atmosphere at 315°C for 5 hours to produce a Ti-clad wire that has high strength, good conductivity, high spring characteristics, and excellent corrosion resistance. I got it. Fifty samples with an outer diameter of 3 mm and a length of 200 mm were taken from the Ti clad wire rod obtained above, and for comparison, 50 samples made with the same dimensions by conventional cold drawing and annealing were taken. We conducted a manufacturing and crushing test to examine the peeling status of the core material and outer skin material. In addition,
In this test, the test piece was pressed to a thickness of 0.5 mm.
The number of specimens with boundary peeling was determined by observing the cross section after crushing them into a plate. The results are shown in Table 1.
【表】
上記結果より、この発明の実施によるものは剥
離しがたく、したがつて外皮材と心材の接合強度
が高いことがわかる。
又、上記のこの発明の実施による試験片のクラ
ツド線境界の拡散状況をＸ線マイクロアナライザ
ーで調べた。その結果を第１図に示す。第１図
O2特性Ｘ線分布から界面には酸化物が存在せず、
又Cu特性Ｘ線分布及びTi特性Ｘ線分布から、Cu
―２％Be合金とTiとの境界には8μ程度の拡散層
が認められ、両者の境界は金属結合により１本化
していることが明らかである。[Table] From the above results, it can be seen that the material according to the present invention is difficult to peel off and therefore has a high bonding strength between the outer skin material and the core material. Further, the state of diffusion at the cladding line boundary of the test piece according to the present invention was examined using an X-ray microanalyzer. The results are shown in FIG. Figure 1
From the O 2 characteristic X-ray distribution, there is no oxide at the interface;
Also, from Cu characteristic X-ray distribution and Ti characteristic X-ray distribution, Cu
A diffusion layer of approximately 8μ was observed at the boundary between the -2%Be alloy and Ti, and it was clear that the boundary between the two was unified by metallic bonding.
第１図はこの発明の実施によりCu―２％合金
心材にTiをクラツドさせたクラツド材のクラツ
ド線境界部分をＸ線マイクロアナライザーで線分
析した際のO2特性、Cu特性、Ti特性Ｘ線の分析
結果を示す線図である。
Figure 1 shows the O 2 characteristics, Cu characteristics, and Ti characteristics X-rays obtained when the clad line boundary portion of a clad material in which Ti is clad in a Cu- 2 % alloy core material is analyzed using an X-ray microanalyzer according to the present invention. It is a line diagram showing the analysis result of.
Claims (1)
プ状のTi、Ti合金を外皮材として嵌合し冷間絞
り加工を行ない、該嵌合材の両端部に摩擦圧接に
よりTi、Ti合金板を溶接した後、加熱して600〜
750℃の温度範囲で熱間圧延或は熱間押出しを行
ない、引続き酸洗、冷間線引することを特徴とす
るTiクラツド線材の製造方法。1 A pipe-shaped Ti or Ti alloy is fitted as an outer skin material to a core material of Cu, Cu alloy, Al, or Al alloy, cold drawing is performed, and a Ti or Ti alloy plate is formed by friction welding on both ends of the fitted material. After welding, heat to 600~
A method for producing a Ti-clad wire, characterized by hot rolling or hot extrusion in a temperature range of 750°C, followed by pickling and cold drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22160682A JPS59110486A (en) | 1982-12-16 | 1982-12-16 | Production of ti clad wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22160682A JPS59110486A (en) | 1982-12-16 | 1982-12-16 | Production of ti clad wire rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59110486A JPS59110486A (en) | 1984-06-26 |
| JPH0150514B2 true JPH0150514B2 (en) | 1989-10-30 |
Family
ID=16769386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22160682A Granted JPS59110486A (en) | 1982-12-16 | 1982-12-16 | Production of ti clad wire rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59110486A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626764A (en) * | 2017-08-31 | 2018-01-26 | 昆明理工大学 | A kind of preparation method of titanium steel composite board |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763723B2 (en) * | 1986-07-31 | 1995-07-12 | 住友金属工業株式会社 | Composite manufacturing method |
| JPH0749121B2 (en) * | 1986-08-08 | 1995-05-31 | 住友金属工業株式会社 | Composite manufacturing method |
| US5004143A (en) * | 1986-07-31 | 1991-04-02 | Sumitomo Metal Industries, Ltd. | Method of manufacturing clad bar |
| JPS6376775A (en) * | 1986-09-19 | 1988-04-07 | Kobe Steel Ltd | Clad material for spectacles frame |
| CN101780490B (en) * | 2010-02-10 | 2011-12-07 | 宝鸡市三鑫金属有限责任公司 | Preparation process for titanium-copper composite wires |
-
1982
- 1982-12-16 JP JP22160682A patent/JPS59110486A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626764A (en) * | 2017-08-31 | 2018-01-26 | 昆明理工大学 | A kind of preparation method of titanium steel composite board |
| CN107626764B (en) * | 2017-08-31 | 2019-09-27 | 昆明理工大学 | A kind of preparation method of titanium steel composite board |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59110486A (en) | 1984-06-26 |
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