JPS63224895A - Brazing method - Google Patents
Brazing methodInfo
- Publication number
- JPS63224895A JPS63224895A JP5865287A JP5865287A JPS63224895A JP S63224895 A JPS63224895 A JP S63224895A JP 5865287 A JP5865287 A JP 5865287A JP 5865287 A JP5865287 A JP 5865287A JP S63224895 A JPS63224895 A JP S63224895A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- filler metal
- brazing filler
- metallizing
- clock case
- 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
- 238000005219 brazing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 8
- 229910052737 gold Inorganic materials 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910015363 Au—Sn Inorganic materials 0.000 claims abstract description 4
- 238000005304 joining Methods 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract 3
- 239000000463 material Substances 0.000 claims description 18
- 238000005476 soldering Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 4
- 238000007747 plating Methods 0.000 description 8
- 239000010931 gold Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910003468 tantalcarbide Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は時計ケース等装飾用超硬合金同士の低融点ロー
材を使用した場合のロー付け方法であって、そのヌレ性
改善方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for brazing decorative cemented carbide metals such as watch cases using a low-melting brazing material, and to a method for improving the wettability thereof. It is.
［従来の技術］
ＷＣ（タングステンカーバイド） 、 ＴａＣ（タンタ
ルカーバイト）等超硬合金同士のロー付けにおいて、耐
食性の良好な金ロー材を使用する場合、金ロー材は溶融
点が７００〜９００℃にも達するため、ロー付けにはこ
れら超硬合金の酸化防止のため真空ロー付けが有効であ
る。しかしながら超硬合金上にＴｔＮ（チタンナイトラ
イド）等の表面処理による被覆層が施されている場合、
ロー付け処理による被覆層の変質を防止するために、低
融点ロー材は処理が必要であり、ロー材として八ｕ−３
ｎが使用される。[Prior art] When using a gold brazing material with good corrosion resistance in brazing cemented carbide such as WC (tungsten carbide) and TaC (tantalum carbide), the melting point of the gold brazing material is 700 to 900°C. Vacuum brazing is effective for preventing oxidation of these cemented carbide alloys. However, if a coating layer is applied on the cemented carbide by surface treatment such as TtN (titanium nitride),
In order to prevent deterioration of the coating layer due to brazing treatment, low melting point brazing material needs to be treated.
n is used.
［発明が解決しようとする問題点］
この時一般的にはロー材と超硬合金とのヌレ性を確保す
るために、第２図に示すように超硬合金時計ケース１お
よびベゼル２にＮｉをメタライズし、さらにその上のロ
ー付（づ面部分に＾Ｕをメタライズして低融点ロー３°
によりローイ」け処理を行なう。このロー付けまでの従
来の工程は、［Ｎｉメッキ→Ｎｉ拡散処理→成形研摩→
ロー付け部Ａｕメッキ→ロー付け］となるが、Ａｕのロ
ー付け部メッキのマスキング等による製造コストの上昇
、および品質面においては接着強度の低下、接合面にお
けるヌレ性劣化に起因したロー切れの問題があった。[Problems to be Solved by the Invention] At this time, in order to ensure the wettability between the brazing material and the cemented carbide, Ni is generally applied to the cemented carbide watch case 1 and bezel 2 as shown in FIG. metallized, and then soldered on top of it (metalized ^U on the surface and low melting point brazed at 3°)
Processing is performed according to the method. The conventional process up to brazing is [Ni plating→Ni diffusion treatment→forming polishing→
Au plating on the soldering part → brazing] However, the manufacturing cost increases due to masking of Au plating on the soldering part, and in terms of quality, adhesive strength decreases, and solder breaks due to deterioration of wettability on the joint surface. There was a problem.
本発明はこの点を鑑みて、ヌレ性改善のメタライズ処理
を改良することにより、製造■稈の簡素化および前記品
質の低下を改善することを目的とする。In view of this point, it is an object of the present invention to simplify the production of culms and improve the above-mentioned deterioration in quality by improving the metallization treatment for improving wettability.
［問題点を解決するための手段］
本発明は、装飾用超硬合金同士の低融点ロー材を使用し
た場合のロー付りによる接合方法において、ヌレ性改善
のメタライズ処理を被接合面にではなく、ロー材自体に
施すものであり、Ａｕ−Ｓｎロー材表面に旧および酊を
メタライズし、該ロー材を接合面に装入して２５０〜４
５０℃で真空熱処理するものである。本発明によるロー
付けまでの製造工程は、［（Ｎｉメッキ→旧拡散処理→
成形研摩）、（ロー材Ｎｉ４−Ａｕメッキ）→ロー材け
］となり、八ｕのロー付け部メッキによる部分メッキ工
程が省略される。熱処理温度は２５０℃未満ではロー材
の溶融点以下でロー付け作用が行なわれず、４５０℃を
越えると表面処理による被覆層が変質してしまうのでこ
の範囲に限定される。[Means for Solving the Problems] The present invention is a method for joining decorative cemented carbides together by brazing when a low-melting brazing material is used. Instead, it is applied to the soldering material itself, and the surface of the Au-Sn soldering material is metallized with gold and aluminum, and the soldering material is charged to the joint surface and the soldering material is heated to 250~4
Vacuum heat treatment is performed at 50°C. The manufacturing process up to brazing according to the present invention is [(Ni plating → old diffusion treatment →
(forming polishing), (brazing material Ni4-Au plating) → brazing material], and the partial plating step of plating the brazed portion of 8u is omitted. The heat treatment temperature is limited to this range because if it is less than 250°C, the brazing action will not take place below the melting point of the brazing material, and if it exceeds 450°C, the coating layer resulting from the surface treatment will change in quality.
［実施例］
第１図は本発明を時計ケースに適用した一例の断面図で
あり、１はＷＣ時計ケース、２はＷＣベゼルであり、Ａ
ｕ−２０％Ｓｎロー材にＮｉおよびその上に八ｕをメッ
キ処理したちの３を接合面に装入し、これらを固定治具
により固定保持し、２ Ｘ １０−”Ｔｏｒｒにて４５
０℃、２０分間加熱処理を行なった。その結果作成され
た時計ケースは接着強度が向上し、接合面のロー切れ現
象が大幅に減少した。[Example] Fig. 1 is a sectional view of an example in which the present invention is applied to a watch case, where 1 is a WC watch case, 2 is a WC bezel, and A is a WC watch case.
U-20%Sn brazing material plated with Ni and 8U on it was charged onto the joint surface, and these were fixed and held with a fixing jig, and then 45 mm at 2 x 10-” Torr.
Heat treatment was performed at 0°C for 20 minutes. The resulting watch case has improved adhesive strength, and the phenomenon of soldering at the joint surface has been significantly reduced.
［発明の効果］
本発明により、Ａｕのロー付け部メッキによるマスキン
グ、部分メツキエ稈等が省略されるため、製造コストが
１７２になることが判明し、メタライズ処理をロー材自
体に施したことで、ヌレ性が改善されたことにより接合
面のロー切れ現象が大幅に減少し、製品歩留が向上する
ようになった。[Effects of the Invention] With the present invention, it was found that the manufacturing cost was 172 yen because masking by plating the Au brazing part, partial metal culm, etc. was omitted, and by applying metallization treatment to the brazing material itself, By improving wetting properties, the phenomenon of soldering at the bonding surface is significantly reduced, and product yields are improved.
第１図は本発明を時計ケースに適用した一例の断面図。 第２図は従来の低融点ロー付けの断面図。 １：時計ケース ２：ベゼル ３；３°：ロー材 特許出願人 並木精密宝石株式会社 ｕ FIG. 1 is a sectional view of an example in which the present invention is applied to a watch case. Figure 2 is a cross-sectional view of conventional low melting point brazing. 1: Watch case 2: Bezel 3; 3°: Raw material Patent applicant: Namiki Precision Jewel Co., Ltd. u
Claims (1)
ロー材表面にＮｉおよびＡｕをメタライズし、該ロー材
を接合面に装入して２５０〜４５０℃で真空熱処理する
ことを特徴としたロー付け方法。In the method of joining cemented carbide and cemented carbide, Au-Sn
A brazing method characterized by metallizing Ni and Au on the surface of a soldering material, charging the soldering material onto a joint surface, and subjecting the soldering material to a vacuum heat treatment at 250 to 450°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5865287A JPS63224895A (en) | 1987-03-13 | 1987-03-13 | Brazing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5865287A JPS63224895A (en) | 1987-03-13 | 1987-03-13 | Brazing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63224895A true JPS63224895A (en) | 1988-09-19 |
Family
ID=13090514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5865287A Pending JPS63224895A (en) | 1987-03-13 | 1987-03-13 | Brazing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63224895A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794839A (en) * | 1994-08-01 | 1998-08-18 | Nippondenso Co., Ltd. | Bonding material and bonding method for electric element |
-
1987
- 1987-03-13 JP JP5865287A patent/JPS63224895A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794839A (en) * | 1994-08-01 | 1998-08-18 | Nippondenso Co., Ltd. | Bonding material and bonding method for electric element |
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