DE1078842B - Process for the production of non-hygroscopic fluxes - Google Patents
Process for the production of non-hygroscopic fluxesInfo
- Publication number
- DE1078842B DE1078842B DEG13727A DEG0013727A DE1078842B DE 1078842 B DE1078842 B DE 1078842B DE G13727 A DEG13727 A DE G13727A DE G0013727 A DEG0013727 A DE G0013727A DE 1078842 B DE1078842 B DE 1078842B
- Authority
- DE
- Germany
- Prior art keywords
- zinc chloride
- hygroscopic
- zinc
- ammonia
- chloride
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 230000004907 flux Effects 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 32
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 24
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 20
- 239000011592 zinc chloride Substances 0.000 claims description 16
- 235000005074 zinc chloride Nutrition 0.000 claims description 16
- 229910021529 ammonia Inorganic materials 0.000 claims description 12
- 239000011787 zinc oxide Substances 0.000 claims description 10
- 239000011701 zinc Substances 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000007900 aqueous suspension Substances 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 1
- 238000005246 galvanizing Methods 0.000 claims 1
- 238000011081 inoculation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011833 salt mixture Substances 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- KMVJYZPWGWEBIK-UHFFFAOYSA-L zinc azane dichloride Chemical compound N.[Cl-].[Cl-].[Zn+2] KMVJYZPWGWEBIK-UHFFFAOYSA-L 0.000 description 2
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical group O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- IWLXWEWGQZEKGZ-UHFFFAOYSA-N azane;zinc Chemical compound N.[Zn] IWLXWEWGQZEKGZ-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance 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
- 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
- B23K35/3601—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 inorganic compounds as principal constituents
- B23K35/3603—Halide salts
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Verfahren zur Herstellung von nichthygroskopischen Flußmitteln Die meisten Fluß- und Lötmittel, wie sie bei der Verzinnung, Verbleiung und Verzinkung verwendet werden, zeigen bei Luftfeuchtigkeiten von 60% und darüber die Neigung zu zerfließen,. besonders wenn sie `in Pulverform vorliegen. Stellt man z. B. eine Salzmischung aus den Einzelkomponenten Zinkchlorid, Salmiak und Zinkoxyd her, so ist diese, da freie wasseranziehende Substanzen vorhanden sind, hygroskopisch und neigt zum Klumpen. Wählt man als Zinkchlorid tragende Komponente, das Zinkchlorid-Salmiak-Doppelsalz, so muß das Molverhältnis Zinkchlorid zu Salmiak 1 : 3 betragen, damit ein Zerfließen an feuchter Luft vermindert wird. Auch die durch Zusammenschmelzen der Verbindungen Zinkchlorid, Zinkoxyd und Salmiak erhaltbaren Zinkamminchloridsysteme mit Überschuß von Zinkchlorid oder Salmiak sind hygroskopisch, gleichgültig ob sie in gemahlener oder stückiger Form vorliegen.Process for the preparation of non-hygroscopic fluxes Die most of the fluxes and solder used in tinning, lead and zinc plating are used, show the tendency at air humidity of 60% and above to dissolve. especially when they are `in powder form. If you put z. Legs Salt mixture from the individual components zinc chloride, ammonia and zinc oxide, see above it is hygroscopic and because free water-attracting substances are present tends to clump. If you choose the zinc chloride-salmiak double salt as the component carrying zinc chloride, so the molar ratio of zinc chloride to salmiak must be 1: 3 so that deliquescence occurs is reduced in moist air. Also by melting the connections together Zinc chloride, zinc oxide and ammonia obtainable zinc amine chloride systems with excess Zinc chloride or ammonia are hygroscopic, regardless of whether they are ground or in lump form.
Es wurde nun gefunden, daß man feinkristalline, rieselfähige, nichthygroskopische, leichtschmelzende Flußmittel erhalten kann, wenn man aus Systemen, d. h. wäßrigen Lösungen oder Suspensionen, die als wesentliche Bestandteile Zinkchlorid-Salmiak oder Zinkoxyd enthalten, im Vakuum bei 15 bis 30 Torr und 50 bis 80° C das Wasser verdampft.It has now been found that finely crystalline, free-flowing, non-hygroscopic, easily melting fluxes can be obtained if one consists of systems, d. H. aqueous Solutions or suspensions, the essential ingredients of which are zinc chloride-ammonia or contain zinc oxide, in a vacuum at 15 to 30 Torr and 50 to 80 ° C the water evaporates.
Die zur Entwässerung angesetzten wäßrigen Lösungen oder Suspensionen können von 5 bis 25% Zinkoxyd, 30 bis 50% Zinkchlorid und 30 bis 70% Salmiak enthalten, für niedrigschmelzende, schwachrauchende Flußmittel vorzugsweise 9 bis 25 % Zinkoxyd, 30 bis 50% Zinkchlorid und 30 bis 40°/o Salmiak. Zum Ansetzen derLösungsgemische oderSuspensionen können auch Zink-Salmiak-Doppelsalze verwendet werden. Selbstverständlich können der zinkoxydische und der Salmiakanteil auch durch Zusatz von Ammoniak zu Chlorzinklauge erzeugt werden.The aqueous solutions or suspensions prepared for dehydration can contain from 5 to 25% zinc oxide, 30 to 50% zinc chloride and 30 to 70% ammonia, for low-melting, low-smoking fluxes preferably 9 to 25% zinc oxide, 30 to 50% zinc chloride and 30 to 40% ammonia. For preparing the solution mixtures or suspensions, zinc-ammonia double salts can also be used. Of course the zinc oxide and ammonia content can also be increased by adding ammonia Zinc chloride can be generated.
Den Lösungsgemischen oder Suspensionen können vor oder während der Eindampfung oder anschließend den erhaltenen nichthygroskopischen Salzmischungen flußverbessernde nichthygroskopische Hilfsmittel, z. B. Salmiak oder Alkalichlorid, zugesetzt werden. Auch können zur Erzielung des schaumigen Schmelzflusses die üblichen organischen Schaumerzeuger, z. B. Glycerin, vor, während oder nach dem Kristallisationsprozeß hinzugefügt werden. Beispiel 1 10 Gewichtsteile Zinkchlorid in Form von Zinkchloridlauge mit 45° B6 wurden mit 7,9 Gewichtsteilen Salmiak und 2 Gewichtsteilen Zinkoxyd versetzt. Nachdem durch Erhitzen eine klare Lösung erhalten wurde, wird diese zwecks Entfernung des Wassers in einer Vakuumapparatur bei 20 Torr und 70° C unter Rühren erhitzt, bis ein feinpulvriges, rieselförmiges Gut anfällt. Dasselbe zeigt bei 14tägigem Stehen an feuchter Luft fast keine Wasseraufnahme. Das Salzgemisch ergibt auf einem Zinnbad eine klare, niedrigvisköse Schmelze, deren Erweichungspunkt etwa bei 80° C liegt. Beispiel 2 10 Gewichtsteile Doppelsalz (Zn C12 -2 N H4 C1) werden mit 0,45 Gewichtsteilen Salmiak und 1,1 Gewichtsteilen Zinkoxyd in 4 Gewichtsteilen heißem Wasser gelöst. Die Lösung wird filtriert und anschließend bei 60 bis 70° C und 15 bis 18 Torr unter Rühren zur Trockne abgedampft. Das erhaltene Salzgemisch hat mit dem unter Beispiel 1 genannten die gleichen Eigenschaften. Beispiel 3 14 Gewichtsteile Zinkchlorid in Form von Zinkchloridlauge mit 35° B6 werden mit der aus 5,3 Gewichtsteilen Zinkchlorid in Form von Zinkchloridlauge mit 60° B6 und 9,6 Gewichtsteilen Ammoniumhydroxyd in Form von konzentrierter Ammoniaklösung hergestellten Zinkhydroxyd-Salmiak-Suspension versetzt und im Vakuum bei 70° C und 15 bis 18 mm unter Rühren zur Trockne abgedampft. Das erhaltene rieselförmigeProdukt ergibt auf einemMetallbad eine niedrigviskose Schmelze mit einem Erweichungspunkt von 65 bis 70° C. Beispiel 4 14,4 Gewichtsteile Doppelsalz - (Zn C12.2 N H4 Cl), 1,58 Gewichtsteile Salmiak, 4,4 Gewichtsteile Zinkoxyd wurden in 7 Gewichtsteilen Wasser heiß gelöst. Die Lösung wird durch einen Druckfilter in eine Vakuumapparatur filtriert. Durch Ausrühren bis zur Trockne unter den vorliegenden Beispielen genannten Bedingungen wird ein dem Beispiel 3 identisches-Produkt erhalten. Beispiel 5 Ansatz wie Beispiel 1. Vor dem Abdampfen werden dem Lösungsgemisch oder der Suspension 0,6 Gewichtsteile- Natriumchlorid zugesetzt. Die aus dem Trockenprdukt 'hergestellte Schmelze zeigte eine etwas geringere Viskosität als die des Produktes nach Beispiel 1. Beispie16 Ansatz wie Beispiel 1, doch wird dem Lösungsgemisch oder der Suspension vor dem Eindampfen 0,1 Gewichtsteil Glycerin zugefügt. Das erhaltene Salz gibt beim Aufbringen auf ein Zinkbad die bekannte bräunliche, schaumige, hohe Flußmitteldecke.Before or during the evaporation or after the resultant non-hygroscopic salt mixtures, flow-improving non-hygroscopic auxiliaries, e.g. B. ammonia or alkali metal chloride are added. The usual organic foam generators, e.g. B. glycerin, be added before, during or after the crystallization process. EXAMPLE 1 10 parts by weight of zinc chloride in the form of zinc chloride liquor at 45 ° B6 were mixed with 7.9 parts by weight of ammonia and 2 parts by weight of zinc oxide. After a clear solution has been obtained by heating, this is heated in a vacuum apparatus at 20 torr and 70 ° C. with stirring to remove the water, until a finely powdered, free-flowing material is obtained. The same thing shows almost no water absorption when standing in humid air for 14 days. On a tin bath, the salt mixture produces a clear, low-viscosity melt with a softening point of around 80 ° C. Example 2 10 parts by weight of double salt (Zn C12 -2 N H4 C1) are dissolved in 4 parts by weight of hot water with 0.45 parts by weight of ammonia and 1.1 parts by weight of zinc oxide. The solution is filtered and then evaporated to dryness at 60 to 70 ° C. and 15 to 18 torr with stirring. The salt mixture obtained has the same properties as those mentioned under Example 1. Example 3 14 parts by weight of zinc chloride in the form of zinc chloride liquor with 35 ° B6 are mixed with the zinc hydroxide-salmia suspension prepared from 5.3 parts by weight of zinc chloride in the form of zinc chloride liquor with 60 ° B6 and 9.6 parts by weight of ammonium hydroxide in the form of concentrated ammonia solution and in Evaporated to dryness under vacuum at 70 ° C and 15 to 18 mm with stirring. The free-flowing product obtained gives a low-viscosity melt on a metal bath with a softening point of 65 to 70 ° C. Example 4 14.4 parts by weight of double salt - (Zn C12.2 N H4 Cl), 1.58 parts by weight of ammonia, 4.4 parts by weight of zinc oxide were in 7 parts by weight of hot water. The solution is filtered through a pressure filter into a vacuum apparatus. A product identical to Example 3 is obtained by stirring to dryness under the conditions mentioned in the present examples. Example 5 Approach as in Example 1. Before evaporation, 0.6 part by weight of sodium chloride is added to the solution mixture or suspension. The melt produced from the dry product had a somewhat lower viscosity than that of the product according to Example 1. Example 1 approach as in Example 1, but 0.1 part by weight of glycerol is added to the mixed solution or suspension before evaporation. When applied to a zinc bath, the salt obtained gives the well-known brownish, foamy, high flux cover.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG13727A DE1078842B (en) | 1954-02-11 | 1954-02-11 | Process for the production of non-hygroscopic fluxes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG13727A DE1078842B (en) | 1954-02-11 | 1954-02-11 | Process for the production of non-hygroscopic fluxes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1078842B true DE1078842B (en) | 1960-03-31 |
Family
ID=7120078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG13727A Pending DE1078842B (en) | 1954-02-11 | 1954-02-11 | Process for the production of non-hygroscopic fluxes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1078842B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003083156A1 (en) * | 2002-03-28 | 2003-10-09 | Council Of Scientific And Industrial Research | Flux process for preparation and use thereof |
-
1954
- 1954-02-11 DE DEG13727A patent/DE1078842B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003083156A1 (en) * | 2002-03-28 | 2003-10-09 | Council Of Scientific And Industrial Research | Flux process for preparation and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1518361B1 (en) | L-ornithine-L-asparaginate and process for its preparation | |
| DE2021004C3 (en) | Process for the production of solid, hydrous alkali silicates | |
| DE1078842B (en) | Process for the production of non-hygroscopic fluxes | |
| DE1198349B (en) | Process for the production of storable, crystallized potassium sorbate from sorbic acid | |
| DE1137161C2 (en) | Process for the manufacture of detergents | |
| DE587589C (en) | Process for the production of low-water ammonium magnesium phosphates | |
| DE715032C (en) | Process for the preparation of dicalcium phosphate fertilizers | |
| DE586446C (en) | Process for the preparation of guanidine salts | |
| DE576799C (en) | Process for the extraction of Duengesalzen | |
| DE598368C (en) | Process for the production of a litterable, storage-stable fertilizer containing ammonium sulfate and ammonium nitrate | |
| DE566136C (en) | Process for the production of a disodium phosphate with 2 molecules of crystal water | |
| EP0046925B1 (en) | Process for the production of a rapidly soluble polyphosphate glass | |
| DE569151C (en) | Process for the digestion of rock phosphates | |
| DE957544C (en) | Process for debittering spring water from the wet processing of grain | |
| AT65382B (en) | Process for drying superphosphates. | |
| DE517747C (en) | Process for evacuating the copper oxide ammonia cellulose spinning solutions with recovery of the simultaneously escaping gaseous ammonia | |
| DE901053C (en) | Process for the production of guanidine thiocyanate | |
| DE263455C (en) | ||
| DE431765C (en) | Production of calcium nitrate in solid form | |
| AT252933B (en) | Process for improving the storage properties of urea | |
| DE969681C (en) | Process for dyeing and printing cellulose-containing materials and suitable solutions and dye preparations for its implementation | |
| DE490710C (en) | Process for the preparation of a calcium compound which splits off hydrocyanic acid in air | |
| EP0046924B1 (en) | Process for the production of a rapidly soluble polyhosphate glass | |
| DE538449C (en) | Process for the production of calcium cyanide | |
| DE919351C (en) | Process for the preparation of new derivatives of isonicotinic acid amide |