JPS61255780A - Production of vibration-proof base plate - Google Patents

Abstract

PURPOSE:To form inexpensively a vibration-proof base plate having required characteristics such as strength and vibration-proof characteristic by exerting a specific amt. of load to the parts to be joined of three sheets of heated plates and joining the plates. CONSTITUTION:The steel plate-copper plate-steel plate are positioned in this order and are stacked in such a manner that the copper plated part contacts with the copper plate. The plates are heated to a prescribed temp. while an atmosphere to prevent the surface to be joined from being contaminated by oxidation, etc. is maintained. About >=50kg load for each 1cm<2> of the parts to be joined is exerted to three sheets of such heated plates by which the plates are joined. The vibration-proof base plate having the excellent characteristics is thus inexpensively formed without using a special installation.

Description

【発明の詳細な説明】 （産業上の利用分野）　− 石材切断用あるいは舗装道路補修時に使用されるダイヤ
モンドソーまた、金属切断用だ使用されるセグメントソ
ーなどは労働環境を改善する目的騒音公害全防止する目
的などから防振特性を有する基板が使用される様になっ
て来ている。本発明はかかる用途に使用される防振基板
の製造方法に関する。[Detailed Description of the Invention] (Industrial Application Field) - Diamond saws used for stone cutting or paved road repair, segment saws used for metal cutting, etc. are used to improve the working environment and reduce noise pollution. For the purpose of preventing vibrations, substrates having anti-vibration properties have come to be used. The present invention relates to a method of manufacturing a vibration-proof substrate used for such applications.

（従来の技術） 防振特性を有する金属材料としては、片状黒鉛鋳鉄、プ
ラスチックを間に挾んだ鋼板に代表される母相と第２相
または金属と粘強性物質との界面における粘性流動を利
用する複合型、高Ｏｒ鋼、高Ｃｒ−Ａｔ鋼に代表される
磁壁の移動に伴なう磁気−機械的履歴損失を利用する強
磁性型、Ｍ？合金に代表される転位が固着点から離脱す
るために生ずる履歴損失を利用する転位型、Ｍｎ−Ｃｕ
合金、Ｎｉ−Ｔｉ合金等に代表される熱弾性マルテンサ
イトの変態双晶境界、母相とマルテンサイト相との境界
の移動に伴なう履歴損失を利用する双晶型など各種のも
のが知られているが前記の使用目的には強度、使用時の
温度上昇、円盤形状の作シやすさ、価格等の面より熱処
理された鋼板を薄い銅板と接合した様式の基板が使用さ
れているのが実状である・（本発明が解決しようとする
問題点） ２枚の鋼板と銅板で接合した様式の板は、例えば２枚の
シートパーの間に銅板を挾み周囲を加熱溶融して封じ、
熱間圧延、要すれば冷間圧延して仕上げることにニジ製
造することが出来これを加工、熱処理すれば強度、接合
強度にすぐれた基板を得ることが出来るが後に説明する
ごとく防振効果の面で充分な特性が得られない。(Prior art) Metal materials with anti-vibration properties include flake graphite cast iron, steel plates with plastic sandwiched between them, and other metal materials that exhibit vibration absorption at the interface between a parent phase and a second phase or between a metal and a viscous substance. A composite type that utilizes flow, a ferromagnetic type that utilizes magneto-mechanical hysteresis loss associated with domain wall movement represented by high Or steel and high Cr-At steel, and M? Dislocation type, Mn-Cu, which utilizes the hysteresis loss that occurs when dislocations, represented by alloys, break away from fixed points.
A variety of types are known, such as the transformation twin boundary of thermoelastic martensite represented by alloys, Ni-Ti alloys, etc., and the twin type that utilizes the hysteresis loss accompanying the movement of the boundary between the parent phase and the martensite phase. However, for the purpose of use mentioned above, a substrate made of heat-treated steel plate bonded to a thin copper plate is used due to reasons such as strength, temperature rise during use, ease of manufacturing into a disk shape, and cost. This is the actual situation. (Problem to be solved by the present invention) A plate in which two steel plates and a copper plate are bonded is made by, for example, sandwiching a copper plate between two sheets and sealing the surrounding area by heating and melting it.
It is possible to produce a substrate by hot rolling, and if necessary cold rolling to finish it, and if it is processed and heat treated, it is possible to obtain a substrate with excellent strength and bonding strength. It is not possible to obtain sufficient characteristics on the surface.

防振効果の面からは第１図に示す如く要部のみを接合す
る方式の方が望しい。表面を平坦に仕上加工し、充分な
洗浄を行なった鋼板の間に平坦で表面の清浄な銅板を挾
み表面が酸化等の汚染を受けない様に保ちながら例えば
７ｏｏ℃以上で１００にｐｆ／−以上の加圧圧力により
圧接すれば充分な接合強度が得られ第１図の様な要部の
みの接合を行なうことは不可能ではない。しかし熱処理
前の鋼板全この方法で接合し、その後熱処理を行なう方
法は熱処理時の変形を防止矯正することは極めて困難で
ちゃ、また熱処理を行なった鋼板を前記の様に７００℃
以上に加熱すれば、鋼板のかたさ、（ＨＲＣ４０程度で
使用するのが一般である）強度が低下してしまう。また
かたさ、強度の低下しない例えば４５０℃程度の加熱を
行ない圧接を行なっても鋼−銅の界面で充分な接合強度
が得られない。From the viewpoint of vibration-proofing effects, it is preferable to use a method in which only the main parts are joined, as shown in FIG. A flat copper plate with a clean surface is sandwiched between steel plates whose surfaces have been processed to a flat finish and have been thoroughly cleaned, and the surface is heated to 100 pf / - If the welding is carried out using a pressure higher than -, sufficient bonding strength can be obtained, and it is not impossible to bond only the main parts as shown in FIG. However, if all the steel plates before heat treatment are joined in this way and then heat treated, it is extremely difficult to prevent and straighten the deformation during heat treatment.
If heated to a higher temperature, the hardness and strength of the steel plate (generally used at about HRC 40) will decrease. Further, even if pressure welding is carried out by heating to, for example, about 450° C. without reducing hardness or strength, sufficient bonding strength cannot be obtained at the steel-copper interface.

本発明は前記例の様な方法の欠点を取りのぞき簡便な方
法によりかたさ、強度、防振特性等所要の特性を有する
防振基板を安価に製造する方法を提供するものである。The present invention eliminates the drawbacks of the methods described above and provides a method for manufacturing a vibration-isolating substrate having required properties such as hardness, strength, and vibration-isolating properties at a low cost using a simple method.

（問題点を解決するための手段） このため本発明は、防振特性を有する円盤状基板の製造
方法において、所要の焼入れ焼もどしを施した後、所要
の形状、寸法に加工した円盤状鋼板を製造する工程と、
上記の鋼板の所要部分に銅メッキを施す工程と、所要の
厚さを有する銅板を円盤状鋼板とほぼ同一の寸法、形状
に加工する工程と、銅メッキした部分が銅板に接する様
に鋼板−銅板−鋼板の順に位置決めして積み重ねる工程
と、接合すべき面が酸化等の汚染全うけない雰囲気を保
ちながら約３５０℃以上であって鋼板の強度が低下しな
い様な条件で加熱する工程と加熱した３枚の板を接合す
べき部分の１−につき約５０９以上の荷重を与えて接合
する工程を含む防振基板の製造方法としたものである。(Means for Solving the Problems) Therefore, the present invention provides a method for manufacturing a disc-shaped substrate having anti-vibration properties, in which a disc-shaped steel plate is processed into a required shape and size after being subjected to required quenching and tempering. The process of manufacturing;
A step of applying copper plating to the required portions of the above-mentioned steel plate, a step of processing the copper plate having the required thickness into almost the same dimensions and shape as the disc-shaped steel sheet, and a step of applying copper plating to the steel plate so that the copper plated portion is in contact with the copper plate. The process of positioning and stacking the copper plate and the steel plate in that order, and the process of heating the surfaces to be joined at a temperature of approximately 350°C or higher and under conditions that do not reduce the strength of the steel plate, while maintaining an atmosphere free from oxidation and other contamination. The method for manufacturing a vibration-proof substrate includes the step of joining three plates by applying a load of about 509 or more per 1- of the part to be joined.

（作用効果） 本発明の基本的な技術内容をその作用効果も含め更に詳
細に説明する。(Operations and Effects) The basic technical content of the present invention will be explained in more detail, including its operations and effects.

その第１は、防振基板は熱処理を施した鋼板の間に薄い
銅板全快んだ構造になっておシ防振効果を向上させるた
め第１図の如く、所要部分のみ鋼板と銅板の接合を行な
うものである。Firstly, the vibration isolation board has a structure in which thin copper plates are completely bonded between heat-treated steel plates, and in order to improve the vibration isolation effect, the steel plates and copper plates are bonded only in the required areas, as shown in Figure 1. It is something to do.

その第２は、鋼板−銅板の接合前に、鋼板の熱処理仕上
加工を行ない接合後に熱処理を行なうことによる熱処理
時の変形防止、矯正の困難を排除することにある。The second purpose is to eliminate the difficulty of preventing and correcting deformation during heat treatment due to heat treatment finishing of the steel plate before joining the steel plate and copper plate and heat treatment after joining.

その第３は、接合時における加熱は前工程の熱処理で付
与された鋼板の強度が実質的に低下しない条件であって
、しかも接合に充分忙可能な３５０℃以上とすることに
ある。Thirdly, the heating during welding must be at a temperature of 350° C. or higher that does not substantially reduce the strength of the steel sheets imparted by the heat treatment in the previous step, and which is sufficient for joining.

その第４は、圧接工程における接合を鋼−銅界面ではな
く銅−銅界面で行なはせることである。The fourth is to perform the bonding in the pressure welding process at the copper-copper interface rather than the steel-copper interface.

その理由としては前述の如く接合時における加熱は鋼板
の強度が実質的に低下しない条件を選択するのであるが
現用されている鋼板が炭素量０７％程度の炭素工具鋼で
あってかたさがＨＲＣ４０程度であり、銅板を均一に加
熱ししかも作業に必要な時間を加味して保持時間を最低
１０分間程度とすれば加熱温度は約５５０℃以下に設定
する必要がある。この様な加熱温度で圧接する場合忙は
鋼−銅界面では充分な接合強度が得られない。し力・し
銅−銅界面で接合全行なわせる場合には充分な接合強度
が得られる。この要件を成立させるためには、圧接の前
工程として銅メッキを行なうことが必要となる。また充
分な接合強度を得るためには接合を完了するまでは接合
面が酸化等の汚染をうけない様な雰囲気を保つ処置が必
要である。The reason for this is that, as mentioned above, heating conditions during welding are selected so that the strength of the steel plate does not substantially decrease, but the steel plate currently in use is carbon tool steel with a carbon content of about 07%, and its hardness is about HRC 40. Therefore, if the copper plate is heated uniformly and the holding time is at least about 10 minutes, taking into account the time required for the work, the heating temperature needs to be set to about 550° C. or lower. When pressure welding is carried out at such heating temperatures, sufficient bonding strength cannot be obtained at the steel-copper interface. Sufficient bonding strength can be obtained if all bonding is performed at the copper-copper interface. In order to satisfy this requirement, it is necessary to perform copper plating as a pre-pressing process. In addition, in order to obtain sufficient bonding strength, it is necessary to maintain an atmosphere in which the bonding surfaces are free from oxidation and other contamination until the bonding is completed.

その第５は、接合すべき部分の１−につき約５０ＬＰ以
上の荷重を与えて接合することである。The fifth method is to apply a load of about 50 LP or more to each part to be joined.

前述の如く接合は銅−銅界面で行なわれ温度も銅の再結
晶温度以上の３５０℃以上に設定されているので、接合
面が充分小さくて清浄であり平坦度のよい面と面を圧接
する場合には５０”Ｆ、７”／−よ勺小さな荷重例えば
ＺＳｔσ／−程度の荷重で圧接しても充分に接合が可能
である。しかしダイヤモンドソー基板等として実用され
る実施例２に見る如き寸法のものの接合を行なう場合に
は本発明の如く、事前に仕上加工を行ったものでも厚さ
の寸法公差あるいは曲り、ねじれ、加熱による変形等を
考えれば理想的な平坦面とは言い難い。またメッキ厚さ
も理想的な均一厚さを保つことは極めて困難である。ま
た加熱した鋼板−銅板を加圧するので加圧工具の伝熱に
よシ温度が低下するので加熱温度近辺にての接合に利用
出来る時間も短時間にならざるをえない、この様な条件
と実際の試験結果とを勘案して前記の条件を設定したも
のである。As mentioned above, bonding is performed at the copper-copper interface, and the temperature is set at 350°C or higher, which is higher than the recrystallization temperature of copper, so the bonding surfaces are sufficiently small and clean, and the surfaces with good flatness are pressed together. In this case, sufficient bonding can be achieved even if pressure welding is performed with a small load such as 50"F, 7"/-, for example, a load of about ZStσ/-. However, when bonding objects with dimensions as shown in Embodiment 2, which are used as diamond saw substrates, etc., even those that have been finished in advance as in the present invention may be subject to dimensional tolerances in thickness, bending, twisting, or heating. Considering deformation, etc., it is hard to say that it is an ideal flat surface. Furthermore, it is extremely difficult to maintain an ideal uniform plating thickness. In addition, since the heated steel plate and copper plate are pressurized, the temperature decreases due to heat transfer from the pressure tool, so the time available for joining near the heating temperature must be shortened. The above conditions were set in consideration of actual test results.

その第６は、所要部分にのみ鋼メッキを行なうことであ
る。その理由の１つは本発明の防振基板は防振特性を向
上させるため所要部分のみの接合を行なうためその他の
部分では銅メッキの必要がないことである。また全面に
メッキを行ない所要部分のみの加圧を行なうことによっ
て所要部分のみの接合を行なうことも不可能ではないが
図２に示す様な理由により形状、寸法ア精度の劣化をま
ねき好ましくない。The sixth method is to apply steel plating only to the necessary parts. One of the reasons for this is that the vibration-isolating substrate of the present invention requires only the necessary parts to be bonded in order to improve the vibration-isolating properties, so there is no need for copper plating on other parts. It is also possible to join only the required portions by plating the entire surface and pressurizing only the required portions, but this is not preferred as it leads to deterioration in shape and dimensional accuracy for the reason shown in FIG.

以上説明した本発明の基本的な技術内容を表現する為に
必要な工程を順に並べると特許請求の範囲に示す内容と
なる。これを模式的に示したのが第３図である。When the steps necessary to express the basic technical contents of the present invention explained above are arranged in order, the contents are shown in the claims. FIG. 3 schematically shows this.

（実　施　例） 次に本発明の実施例について更に具体的に説明する。(Example) Next, embodiments of the present invention will be described in more detail.

実施例１ 、ＴＩＳ規格８に５の鋼板に焼入れ焼戻しを施しＨＲＣ
６０とした素材よシ、２０ｍＸ２０ｍｍの試片を切シ出
し、両面を研削し１．５ｕ厚さとした後片面に約１０μ
ｍの銅メッキを施こしたもの及び銅メッキを施こさなか
ったものを準備し、試片２枚の間に２０．Ｘ２０．Ｘｏ
、１關の銅板を挾み、窒素ガスを導入して無酸化雰囲気
とした加熱炉内で加圧接合した後１５１ＪＸ１５ｕの寸
法に加圧した試片を用い、第４図（ａ）に示す治具を用
いて破断強さの測定を行ない、同時に鋼板の硬さ測定を
行った。Example 1: A steel plate of TIS standard 8 and 5 was quenched and tempered and HRC
Cut out a 20m x 20mm test piece from the 60% material, grind both sides to a thickness of 1.5u, and then cut out a sample of about 10μ on one side.
A sample with copper plating of 20.m and a sample without copper plating were prepared, and 20.m of copper was placed between the two test pieces. X20. Xo
The treatment shown in Fig. 4(a) was carried out using a test piece which was sandwiched between two copper plates and pressure-bonded in a heating furnace to create a non-oxidizing atmosphere by introducing nitrogen gas, and then pressurized to a size of 151J The breaking strength was measured using a tool, and at the same time the hardness of the steel plate was measured.

加圧力５０すｆ／ｄ、１００すｆ／−を試験片の接合条
件として選択した。その結果を示したのが第４図（ｂ）
である。図に示される様に銅メッキを施さなかった試片
では例えば加熱温度７００℃、加圧力１００”ｐｆ／−
では充分な接合強度が得られるが、接合が可能な温度は
この条件設定ではいづれも６００℃以上を必要とし鋼板
の硬さはＨＲＣ！４０以下となってしまった。A pressing force of 50 sf/d and 100 sf/- was selected as the bonding condition for the test pieces. Figure 4(b) shows the results.
It is. As shown in the figure, for example, the heating temperature is 700℃ and the pressing force is 100"pf/- for the specimen without copper plating.
Sufficient bonding strength can be obtained under these conditions, but the temperature at which bonding can be achieved requires a temperature of 600°C or higher in all cases, and the hardness of the steel plates is HRC! It became less than 40.

これに反し銅メッキを施した試片においては、特許請求
の範囲に示す３５０℃以上であって鋼板の強度が低下し
ない条件（本調査の場合には硬さＨＲＣ！４０以上を示
す５５０℃以下）で加圧力１０　ｏＬｆ／−で２．３〜
３．１　ＩＰ−ｍ、　５０１σ／−で１．０〜１．６　
ＩＰ−ｍの破断トルクを示し鋼メッキを施こすことの有
効なこと及び特許請求の範囲に示す加圧力、加熱条件の
妥当なことが確認され友。On the other hand, for copper-plated specimens, the temperature is 350°C or higher as stated in the claims and the strength of the steel plate does not decrease (in the case of this investigation, the temperature is 550°C or lower with hardness HRC!40 or higher). ) at a pressure of 10 oLf/- from 2.3 to
3.1 IP-m, 1.0 to 1.6 at 501σ/-
The fracture torque of IP-m was shown, and the effectiveness of steel plating and the appropriateness of the pressing force and heating conditions shown in the claims were confirmed.

実施例２ 次に示す様な本発明手順によシ外径３９０．Ｘ孔径５０
ｗＪ×厚さ２．５ｕの防振基板を製造した。Example 2 An outer diameter of 390. X hole diameter 50
A vibration-proof substrate of wJ×thickness 2.5u was manufactured.

外径３９０×孔径５０１ｕｌに加工したＪ工Ｓ規格８に
５の鋼板（厚さ１．５　ｍ　）　２枚と同形状に加工し
た鋼板（厚さｏ、　１ｒｘｘ　）　”枚を用意し、鋼板
を焼入後、４５０℃で治具に挾みながら焼戻しし、鋼板
の片面２　ｏ、　ｓ　Ｂ程度の面粗さに研削し、基板の
要部（外周部と孔周辺３０〜４０ｍ巾）に相当する部分
に厚さ１０μｍ程度の銅メッキを施し、銅メト キした′枚の鋼板と表う２浄にした銅板をす′ドイッチ
にして一時固定し、金具で仮固定されたサンドインチ板
ヲＮ２雰囲気中で５５０℃に１０分間加熱し、仮固定金
具を取シ外すと即時５０９ｊ７ｄで加圧しながら２分以
内で接合し、φ３９０　Ｘ　２．５　ｔの製品形状に仕
上研削し、そしてこの基板より半比較のため次の様な試
片についても同時に測定を行なった。Prepare two steel plates (thickness 1.5 m) of J Engineering S standard 8 to 5 processed to an outer diameter of 390 x hole diameter of 501 ul and a steel plate (thickness o, 1 rxx) processed to the same shape, and After quenching, it is tempered at 450℃ while being held in a jig, and ground to a surface roughness of about 2 o, s B on one side of the steel plate, which corresponds to the main part of the board (outer circumference and 30 to 40 m width around the hole). The sand-inch board, which is temporarily fixed with metal fittings, is placed in an N2 atmosphere. The board was heated to 550°C for 10 minutes, the temporary fixing metal fittings were removed, and the board was immediately joined within 2 minutes while being pressed with 509j7d. For comparison, the following samples were also measured at the same time.

（１）　　前述の製造条件で■の加熱温度を７００℃と
したもの。(1) Under the above-mentioned manufacturing conditions, the heating temperature in (■) was set to 700°C.

（１１）銅メッキを施さず加熱温度を７００℃とし全面
接合させたもの。(11) Full-surface bonding without copper plating at a heating temperature of 700°C.

（ｉｌｉ）　　２枚のシートバーの間に銅板を挾んで熱
間圧延、冷間圧延を経た後熱処理して硬さＨＲＯ４０に
したもの。(ili) A copper plate sandwiched between two sheet bars, hot-rolled, cold-rolled, and then heat-treated to have a hardness of HRO40.

θＶ）防振特性を有するｔ３４ｃｒ鋼。θV) T34CR steel with anti-vibration properties.

（ｖ）　　ｙ工Ｓ　　ＳＫ５鋼板。(v) Y Engineering S SK5 steel plate.

尚これらの比較試片の要部寸法は本発明による方法の試
片と同一とした。更にこれらの試片の防振特性全第５図
に示す。The dimensions of the main parts of these comparison specimens were the same as those of the specimens prepared by the method of the present invention. Furthermore, the anti-vibration characteristics of these specimens are shown in Figure 5.

比較試片（１）（加熱温度７００℃としたもの）を除く
各試片にくらべ優れた防振特性を示していることが確認
された。It was confirmed that this sample exhibited superior vibration damping properties compared to each sample except comparative sample (1) (heated at 700° C.).

以上本発明の詳細な説明および実施例に具体的に示す様
に本発明の方法によれば優れた特性の防振基板を特殊な
設備を使用することなく安価に製造することが出来工業
的に有効な発明と言うことが出来る。As specifically shown in the detailed description and examples of the present invention above, according to the method of the present invention, a vibration-proof substrate with excellent characteristics can be manufactured at low cost without using special equipment, and industrially. It can be said that this is an effective invention.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の製造方法を実施する基板要部圧接用金
型と本発明によって製造される防振基板形状とを示す。 第２図は鋼板の全面を銅メッキし所要部分のみ圧接した
場合の不具合点を図案化して示す説明図である。第３図
は本発明工程の概略を示すブロック図である。第４図（
ａ）は実施例■での接合強度の試験方法を示しくｂ）は
その結果を示すグラフである。第５図は実施例■での防
振特性のテスト結果を示す。 代理人　弁理士　　河　内　潤　二 ′＄１図 第２図 ｐｔＪ３図 １５図 手続補正書 昭和６０４月２　日 特許庁長官　　志　　賀　　学　　殿 １゜　　事件の表示 昭和６０年特許願第９８８０６号 ２、　　発明の名称 防振基板の製造方法 ３、　　補正をする者 事件との関係　　特許出願人 名称　（５１９）株式会社　　不　二　越４、　　代理
人 居所　　東京都港区浜松町２丁目４番１号世界貿易セン
タービル２５階 自　　　発 ６、　　補正の対象 図　　面 ７、　　補正の内容 振す誠褒端数 第５図FIG. 1 shows a mold for pressure-welding the main parts of a substrate for carrying out the manufacturing method of the present invention, and a shape of a vibration-proof substrate manufactured by the present invention. FIG. 2 is an explanatory diagram schematically showing the problems that occur when the entire surface of a steel plate is plated with copper and only the required parts are pressure-welded. FIG. 3 is a block diagram showing an outline of the process of the present invention. Figure 4 (
a) shows the method of testing the bonding strength in Example ①, and b) is a graph showing the results. FIG. 5 shows the test results of the anti-vibration characteristics in Example (2). Agent Patent attorney Jun Kawauchi $1 Figure 2 ptJ3 Figure 15 Procedural amendments April 2, 1980 Manabu Shiga, Commissioner of the Patent Office 1゜ Indication of the case 1985 Patent Application No. 98806 2, Invention Name of Manufacturing Method for Anti-vibration Substrate 3, Relationship to the Amendment Case Patent Applicant Name (519) Fujikoshi Co., Ltd. 4, Agent Address World Trade Center Building, 2-4-1 Hamamatsucho, Minato-ku, Tokyo 25th Floor Voluntary Release 6, Drawing subject to correction Plane 7, Contents of correction Figure 5

Claims (1)

【特許請求の範囲】[Claims] 防振特性を有する円盤状基板の製造方法において、所要
の焼入れ焼もどしを施した後、所要の形状、寸法に加工
した円盤状鋼板を製造する工程と、上記の鋼板の所要部
分に銅メッキを施す工程と、所要の厚さを有する銅板を
円盤状鋼板とほぼ同一の寸法、形状に加工する工程と、
銅メッキした部分が銅板に接する様に鋼板−銅板−鋼板
の順に位置決めして積み重ねる工程と、接合すべき面が
酸化等の汚染をうけない雰囲気を保ちながら約３５０℃
以上であって鋼板の強度が低下しない様な条件で加熱す
る工程と加熱した３枚の板を接合すべき部分の１ｃｍ＾
２につき約５０Ｋｇ以上の荷重を与へて接合する工程を
含む防振基板の製造方法。A method for manufacturing a disc-shaped substrate having anti-vibration properties includes a step of manufacturing a disc-shaped steel plate that is processed into the required shape and dimensions after being subjected to the required quenching and tempering, and copper plating on the required portions of the above-mentioned steel plate. a step of processing a copper plate having the required thickness into a size and shape that are almost the same as a disc-shaped steel plate;
The process involves positioning and stacking the steel plates - copper plates - steel plates in this order so that the copper-plated parts are in contact with the copper plates, and heating at approximately 350°C while maintaining an atmosphere where the surfaces to be joined are free from oxidation and other contamination.
The process of heating under conditions that do not reduce the strength of the steel plate, and the 1 cm of the part where the three heated plates are to be joined.
A method for manufacturing a vibration-proof substrate, including a step of bonding by applying a load of about 50 kg or more to each.