DE2524362C2 - Binder containing methyl methacrylate for applying metal powder coatings, in particular soldering powder coatings, process for its production and its use - Google Patents

Binder containing methyl methacrylate for applying metal powder coatings, in particular soldering powder coatings, process for its production and its use

Info

Publication number
DE2524362C2
DE2524362C2 DE19752524362 DE2524362A DE2524362C2 DE 2524362 C2 DE2524362 C2 DE 2524362C2 DE 19752524362 DE19752524362 DE 19752524362 DE 2524362 A DE2524362 A DE 2524362A DE 2524362 C2 DE2524362 C2 DE 2524362C2
Authority
DE
Germany
Prior art keywords
powder coatings
methyl methacrylate
binder
production
applying 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
Application number
DE19752524362
Other languages
German (de)
Other versions
DE2524362A1 (en
Inventor
Gaston Toulouse Bayard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Power Units SAS
Original Assignee
Microturbo SA
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 Microturbo SA filed Critical Microturbo SA
Publication of DE2524362A1 publication Critical patent/DE2524362A1/en
Application granted granted Critical
Publication of DE2524362C2 publication Critical patent/DE2524362C2/en
Expired legal-status Critical Current

Links

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
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • 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
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • 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
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3612—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with organic compounds as principal constituents
    • B23K35/3616—Halogen compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

40 ml Methylmethacrylat40 ml of methyl methacrylate

40 ml Trichloräthan40 ml trichloroethane

16 ml Tetrachlorkohlenstoff sowie16 ml carbon tetrachloride as well

0,34 g Benzoylperoxid.0.34 g benzoyl peroxide.

3. Bindemittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Methylmethacrylatbestandteil monomeres Methylmethacrylat ist3. Binder according to claim 1 or 2, characterized in that the methyl methacrylate component monomeric methyl methacrylate is

4. Verfahren zur Herstellung eines Bindemittels nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß flüssiges Methylmethacrylat, flüssiges Trichloräthan, flüssiger Tetrachlorkohlenstoff sowie Benzoylperoxidpulver gemischt werden und die erhaltene Flüssigkeit durch Rühren homogenisiert und getrocknet wird.4. A method for producing a binder according to any one of claims 1 to 3, characterized in that that liquid methyl methacrylate, liquid trichloroethane, liquid carbon tetrachloride as well Benzoyl peroxide powder are mixed and the liquid obtained is homogenized by stirring and is dried.

5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Trocknung in 15 bis 20 Stunden bei einer Temperatur von 47 bis 53° C vorgenommen wird.5. The method according to claim 4, characterized in that the drying in 15 to 20 hours at a temperature of 47 to 53 ° C is made.

6. Verwendung des Bindemittels nach einem der Ansprüche 1 bis 3 in Verdünnung mit Trichlormethan für Lötpulver.6. Use of the binder according to any one of claims 1 to 3 diluted with trichloromethane for solder powder.

7. Verwendung nach Anspruch 6 mit der Maßgabe, daß das trockene Bindemittel mit der lOfachen Volumenmenge Trichlormethan verdünnt wird.7. Use according to claim 6 with the proviso that the dry binder with the tenfold Volume amount of trichloromethane is diluted.

11500C oder darüber rückstandslos verdampft1150 0 C or above evaporated without residue

Der Erfindung liegt die Aufgabe zugrunde, ein konzentriertes Bindemittel der eingangs vorausgesetzten Art zu entwickeln, das sich schon bei etwa 3000C vollständig verflüchtigt und einem Lötpulver vollkommene Haftungseigenschaften beim Auftrag auf Bleche verleiht, und ein Verfahren zur Herstellung dieses Bindemittels sowie dessen Verwendung anzugeben.
Diese Aufgabe wird durch die kennzeichnendenThe invention has for its object to develop a concentrated binder of the initially the aforesaid type, which is completely volatilized even at about 300 0 C and gives a solder powder perfect adhesion properties when applied to metal plates, and to provide a process for the preparation of this binder and its use.
This task is characterized by the

ίο Merkmale der Patentansprüche 1 bzw. 4 bzw. 6 gelöst.ίο features of claims 1 and 4 and 6 solved.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Patentansprüchen 2 und 3 bzw. 5 bzw. 7 gekennzeichnet.
Dank der erfindungsgemäßen Zusammensetzung des Bindemittels verflüchtigt sich dieses nach Verdünnung mit Trichlormethan beispielsweise beim Erhitzen mit einem Lötpulver vor der Lötreaktion bei etwa 3000C vollständig, ohne auch nur die geringste Spur von Kohlenstoffablagerungen auf den Blechen zu hinterlassen.Advantageous embodiments of the invention are characterized in claims 2 and 3 and 5 and 7, respectively.
Thanks to the inventive composition of the binder, this completely even the slightest trace of carbon deposits volatilized after dilution with trichloromethane for example, when heated with a solder powder before the Lötreaktion at about 300 0 C, without leaving on the sheets.

Die sonst damit einhergehenden Nachteile einer Verringerung der mechanischen sowie der Löteigenschaften der Bleche werden entsprechend vollständig vermieden, da der Kohlenstoff bei der Lötreaktion oberhalb 8000C völlig verschwunden ist.The otherwise associated disadvantages of a reduction of the mechanical and the brazing properties of the sheets are respectively completely avoided, since the carbon has completely disappeared in the Lötreaktion above 800 0 C.

Ein Kontrolltest zur guten Qualität des erfindungsgemäßen Bindemittels kann etwa dadurch vorgenommen werden, daß eine Probe des Bindemittels entnommen und auf eine Temperatur von 100—1200C bis zur Verdampfung erhitzt wird; wenn das Bindemittel von ziifriedenstellender Qualität ist, muß der erhaltene trockene Rückstand durchscheinend sein und etwa 1% des Anfangsgewichts der Probe wiegen.A control test to good quality of the binder of the invention can be made by for example, that a sample of the binder is removed and heated to a temperature of 100-120 0 C until evaporation; if the binder is of satisfactory quality, the resulting dry residue must be translucent and weigh about 1% of the initial weight of the sample.

Die Erfindung bezieht sich auf ein Bindemittel der im Oberbegriff des Patentanspruchs 1 vorausgesetzten Art, ein Verfahren zu seiner Herstellung und dessen Verwendung. The invention relates to a binder of the type required in the preamble of claim 1, a process for its manufacture and its use.

Zur Durchführung einer Hartlötung an Blechen wird auf diese, insbesondere mit einem Strahl aus einer Pisto- so Ie, ein Lötpulver aufgebracht, das zuvor mit einem Bindemittel vermischt wurde, um ihnen die erforderlichen Kohäsions- und Adhäsionseigenschaften zu verleihen.In order to carry out a hard soldering on sheet metal, this is done, in particular with a jet from a pistol Ie, a solder powder is applied that has previously been mixed with a binder to give them the required To impart cohesive and adhesive properties.

Die dafür geeigneten herkömmlichen Bindemittel sind beispielsweise organische Derivate, die auf den BIechen Kohlenstoffablagerungen hinterlassen, die hohen Temperaturen bei der Lötung widerstehen; diese Kohlenstoffablagerungen verändern bei der erhöhten Temperatur, bei der eine Lötung vorgenommen wird, die örtliche Struktur der Bleche an den Lötstellen, wobei insbesondere die mechanischen Eigenschaften und die Lötbarkeit bemerkenswert verschlechtert werden.The conventional binders suitable for this purpose are, for example, organic derivatives that are deposited on the BIechen Leave carbon deposits that can withstand high soldering temperatures; these carbon deposits change at the elevated temperature at which a soldering is carried out, the local structure of the sheets at the soldering points, in particular the mechanical properties and the Solderability can be remarkably deteriorated.

Aus der US-PS 36 61 595 sind eine Zusammensetzung und ein Verfahren zum Metallisieren einer Keramik bekannt, wobei die Zusammensetzung aus einer Mischung von Mangan-, Molybdän- und Siliziumpulvern in Suspension in z. B. Butylcarbitol gelöstem Polymethylmethacrvlat als Bindemittel besteht, das beim Erhitzen aufFrom US-PS 36 61 595 a composition and a method for metallizing a ceramic are known, wherein the composition consists of a mixture of manganese, molybdenum and silicon powders in suspension in z. B. Butylcarbitol dissolved Polymethylmethacrvlat as a binder, which when heated

Claims (2)

Patentansprüche:Patent claims: 1. Methylmethacrylat enthaltendes Bindemittel zum Aufbringen von Metallpulverüberzügen, insbesondere von Lötpulverüberzügen, dadurch gekennzeichnet, daß es aus einer homogenisierten getrockneten Mischung flüssigen Methylmethacrylats mit flüssigem Trichloräthan, flüssigem Tetrachlorkohlenstoff und Benzoylperoxidpulver besteht 1. Methyl methacrylate-containing binder for applying metal powder coatings, in particular of solder powder coatings, characterized in that it consists of a homogenized dried mixture of liquid methyl methacrylate with liquid trichloroethane, liquid carbon tetrachloride and benzoyl peroxide powder 2. Bindemittel nach Anspruch 1, dadurch gekennzeichnet, daß die Ausgangsbestandteile in folgenden Mengenverhältnissen enthalten sind:2. Binder according to claim 1, characterized in that that the starting ingredients are contained in the following proportions:
DE19752524362 1974-07-02 1975-06-02 Binder containing methyl methacrylate for applying metal powder coatings, in particular soldering powder coatings, process for its production and its use Expired DE2524362C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423226A FR2276898A1 (en) 1974-07-02 1974-07-02 BINDER FOR BRAZING POWDER AND METHOD OF MANUFACTURING

Publications (2)

Publication Number Publication Date
DE2524362A1 DE2524362A1 (en) 1976-01-22
DE2524362C2 true DE2524362C2 (en) 1986-08-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752524362 Expired DE2524362C2 (en) 1974-07-02 1975-06-02 Binder containing methyl methacrylate for applying metal powder coatings, in particular soldering powder coatings, process for its production and its use

Country Status (4)

Country Link
CS (1) CS196277B2 (en)
DE (1) DE2524362C2 (en)
FR (1) FR2276898A1 (en)
GB (1) GB1483568A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI77589C (en) * 1985-01-09 1989-04-10 Gss General Sea Safety Ltd Oy UNDERVATTENSFOERGRIPNINGSFOERFARANDE OCH -MEDEL.
CN114952077B (en) * 2022-04-14 2024-06-21 天诺光电材料股份有限公司 Composite brazing paste and preparation method and application thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123419B (en) * 1960-09-27 1962-02-08 Degussa Method for bonding metals
US3661595A (en) * 1970-02-16 1972-05-09 Coors Porcelain Co Composition for metalizing ceramic

Also Published As

Publication number Publication date
CS196277B2 (en) 1980-03-31
GB1483568A (en) 1977-08-24
FR2276898A1 (en) 1976-01-30
FR2276898B1 (en) 1976-12-24
DE2524362A1 (en) 1976-01-22

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