NO119205B - - Google Patents
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- Publication number
- NO119205B NO119205B NO163555A NO16355566A NO119205B NO 119205 B NO119205 B NO 119205B NO 163555 A NO163555 A NO 163555A NO 16355566 A NO16355566 A NO 16355566A NO 119205 B NO119205 B NO 119205B
- Authority
- NO
- Norway
- Prior art keywords
- welding
- per cent
- percent
- oxide
- agent
- Prior art date
Links
- 238000003466 welding Methods 0.000 claims description 40
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 4
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- -1 compounds iron oxide Chemical class 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 208000032544 Cicatrix Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
- B01D3/065—Multiple-effect flash distillation (more than two traps)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/08—Multieffect or multistage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Nonmetallic Welding Materials (AREA)
Description
Granulert sveisemiddel. Granulated welding agent.
Foreliggende oppfinnelse angår den slags elektrisk sveising hvor metall legges ned fra en ubekledd sveiseelektrode, mens sveisesonen dekkes av et dypt lag av granulert sveisemiddel. Oppfinnelsen går spesielt ut på et sveisemiddel, som muliggjør sveising av tynne blikk med stor hastighet. The present invention relates to the kind of electric welding where metal is laid down from an uncoated welding electrode, while the welding zone is covered by a deep layer of granulated welding agent. The invention is particularly concerned with a welding agent, which enables the welding of thin sheets at high speed.
Den ovennevnte sveisemetode ble opp-rinnelig utviklet for sveising av grove tverr-snitt og har funnet sin største anvendelse ved sveising av platetykkelser fra omkring 6,4 til 10,2 mm. De gode, sterke sveiser som fremstilles automatisk og hurtig ved hjelp av denne metode har gjort at man har for-søkt å utvide dens anvendelsesområde. Me-gen tid er blitt brukt og mange anstrengel-ser gjort i den hensikt å tillempe metoden for anvendelse ved automatisk, rask sveising av tynne metallblikk. Mens gode sveiser er blitt fremstilt ved hjelp av vanlige sveisemiddelblandinger på tynne blikk ved hastigheter opp til ca. 380 cm/min., så har kravet til stadig større produksjonshastig-heter ført til et fortsatt krav på et sveisemiddel som tillater sveising av like mate-rialer ved større hastighet enn det hittil har vært mulig. The above-mentioned welding method was originally developed for welding rough cross-sections and has found its greatest application when welding plate thicknesses from about 6.4 to 10.2 mm. The good, strong welds that are produced automatically and quickly using this method have led to attempts to expand its area of application. Much time has been spent and many efforts have been made with the intention of adapting the method for use in automatic, rapid welding of thin sheet metal. While good welds have been produced using common welding agent mixtures on thin sheets at speeds up to approx. 380 cm/min., then the demand for ever greater production speeds has led to a continued demand for a welding agent that allows welding of similar materials at a higher speed than has been possible up until now.
Som eksempler på kjente sveisemidler kan nevnes følgende, i hvilke alle prosent-verdier er vektsprosent: et sveisemiddel som inneholder 30—65 pst. manganoksyd, 9—40 pst. aluminiumoksyd og resten silisiumdioksyd, samt eventuelt 4—15 pst. kalsiumfluorid, et sveisemiddel som inneholder enten (a) mangan-, kalsium-, magnesium- eller aluminiumsilikater og mindre enn 1 pst. bly, vismut eller antimon i bun-det tilstand, til hvilket det kan settes opp til 6 pst. fluor; eller (b) en hovedmengde av en forbindelse av silisiumoksyd og et manganoksyd, kalsiumoksyd, magnesium eller aluminiumoksyd med mindre enn 1 pst. blyoksyd, antimonoksyd eller vismut-oksyd, til hvilket det kan settes et metall-fluorid i en mengde på ikke over 15 pst., og et sveisemiddel som inneholder 20—40 pst. silisiumdioksyd, 18—50 pst. titandioksyd, 10—30 pst. manganoksyd, 0—10 pst. fluor og andre elementer opp til 20 pst. As examples of known welding agents, the following can be mentioned, in which all percentage values are percentages by weight: a welding agent containing 30-65 percent manganese oxide, 9-40 percent aluminum oxide and the rest silicon dioxide, as well as possibly 4-15 percent calcium fluoride, a welding agent which contains either (a) manganese, calcium, magnesium or aluminum silicates and less than 1 per cent of lead, bismuth or antimony in the bound state, to which up to 6 per cent of fluorine may be added; or (b) a principal amount of a compound of silicon oxide and a manganese oxide, calcium oxide, magnesium or aluminum oxide with less than 1 per cent lead oxide, antimony oxide or bismuth oxide, to which may be added a metal fluoride in an amount not exceeding 15 per cent, and a welding agent containing 20-40 per cent silicon dioxide, 18-50 per cent titanium dioxide, 10-30 per cent manganese oxide, 0-10 per cent fluorine and other elements up to 20 per cent
Foreliggende oppfinnelse tar sikte på et sveisemiddel som gjør det mulig å oppnå store sveisehastigheter på tynne metallblikk. The present invention aims at a welding agent which makes it possible to achieve high welding speeds on thin metal sheets.
I henhold til oppfinnelsen er et granulert sveisemiddel til bruk som lysbueavskjermende middel ved hurtig sveising av tynne stålblikk inneholdende 15—28 pst. silisiumdioksyd og 20—35 pst. titandioksyd karakterisert ved at sveisemidlet inneholder manganoksyd i en mengde av 40—50 pst., opp til 7,5 pst. aluminiumoksyd, opp til 5 pst. kalsiumfluorid, opp til 1 pst. vanadiumpentoksyd og opp til 7,5 pst. tilsammen av en eller flere av forbindelsene jernoksyd (FeO) kalk, magnesia. According to the invention, a granulated welding agent for use as an arc shielding agent for rapid welding of thin steel sheets containing 15-28 percent silicon dioxide and 20-35 percent titanium dioxide is characterized in that the welding agent contains manganese oxide in an amount of 40-50 percent, up up to 7.5% aluminum oxide, up to 5% calcium fluoride, up to 1% vanadium pentoxide and up to 7.5% together of one or more of the compounds iron oxide (FeO), lime, magnesia.
Et foretrukket sammensetningsområde er: 17—20 pst. silisiumdioksyd, 20—24 pst. titandioksyd, 44—48 pst. manganoksyd,3,5— 5,5 pst. aluminiumoksyd, 2—3 pst. kalsiumfluorid, 0,3—0,7 pst. vanadiumpentoksyd, opp til 3 pst. jernoksyd (FeO), opp til 1 pst. kalk og opp til 1 pst. magnesia. Dess-uten skal spesielt påpekes at komposisjo-nen ikke overveiende er et silikat, som det er vanlig, og at silisiumdioksydinnholdet må være innenfor de grenser som er de-finert for at det ønskede resultat skal oppnås. A preferred composition range is: 17-20 percent silicon dioxide, 20-24 percent titanium dioxide, 44-48 percent manganese oxide, 3.5-5.5 percent aluminum oxide, 2-3 percent calcium fluoride, 0.3-0, 7% vanadium pentoxide, up to 3% iron oxide (FeO), up to 1% lime and up to 1% magnesia. In addition, it should be particularly pointed out that the composition is not predominantly a silicate, as is usual, and that the silicon dioxide content must be within the limits defined for the desired result to be achieved.
Sveisemidlet ifølge oppfinnelsen er fortrinsvis smeltet på forhånd og tillaget på vanlig måte, som ved smeltning av så-danne råmaterialer som kvarts, rutil og manganmalm. Den smeltede blanding av-kjøles deretter i kokille for å stivne. Den stivnede masse knuses til en størrelse, f. eks. «12 x 200», dvs. slik at den helt pas-serer en 12-maskers sikt (1,397 mm's åpninger) og holdes tilbake på en 200-maskers sikt (0,074 mm's åpninger), og er da ferdig for bruk. The welding agent according to the invention is preferably melted in advance and prepared in the usual way, such as by melting such raw materials as quartz, rutile and manganese ore. The molten mixture is then cooled in a mold to solidify. The solidified mass is crushed to a size, e.g. "12 x 200", i.e. so that it completely passes a 12-mesh sieve (1.397 mm openings) and is retained on a 200-mesh sieve (0.074 mm openings), and is then ready for use.
I følgende tabell vises en del spesi-fikke eksempler på sammensetninger innenfor oppfinnelsens område. Alle de angitte komposisjoner er funnet like tilfredsstillende for sveising av tynne metallblikk ved så store sveisningshastigheter som 508 cm/min. The following table shows a number of specific examples of compositions within the scope of the invention. All the stated compositions have been found equally satisfactory for welding thin metal sheets at welding speeds as high as 508 cm/min.
Slik som ovenfor angitt har sveisemidlet ifølge oppfinnelsen vist seg å være tilfredsstillende i alle henseender når det anvendes for fremstilling av sveiser i tynn-kalibret metallblikk ved store hastigheter. Eksempelvis ble hver enkelt av de i tabel-len angitte sammensetninger anvendt ved fremstilling av sveiser ved hastigheter på 254, 381 og 508 cm/min. i en serie prøver. I alle tilfeller fremstiltes buttsveiser i firkantfuger på 1,98 mm tykt kullstoff stål med lavt kullstoffinnhold. Ved en sveise-hastighet på 254 cm/min. var den an-vendte sveisestrøm 325 ampére og spenningen 21 volt. Ved 381 cm/min. var sveise-strømmen 490 ampére og spenningen 22 volt. I alle tilfeller anvendtes likestrøm med omvendt polaritet. I alle tilfeller og ved hver hastighet fikk man feilfri.sveiser med fullstendig inntrengning. Sveisene var praktisk talt fri for smelteriller, arr, blæ-rer, sprekker eller andre mangler, som normalt opptrer ved anvendelse av tid-ligere sveisemidler ved så store sveisehastigheter. Den nedlagte sveis var omkring 3,18 mm bred i hvert tilfelle under anvendelse av en 2,38 mm diameters stål-sveiseelektrode som inneholdt 1 pst. mangan, 0,15 pst. kullstoff og 0,2 pst. silisium. As indicated above, the welding agent according to the invention has proven to be satisfactory in all respects when used for the production of welds in thin-gauge sheet metal at high speeds. For example, each of the compositions indicated in the table was used in the production of welds at speeds of 254, 381 and 508 cm/min. in a series of samples. In all cases, butt welds in square joints were made on 1.98 mm thick carbon steel with a low carbon content. At a welding speed of 254 cm/min. the welding current used was 325 amperes and the voltage 21 volts. At 381 cm/min. the welding current was 490 amperes and the voltage 22 volts. In all cases direct current with reverse polarity was used. In all cases and at every speed, flawless welds with complete penetration were obtained. The welds were practically free of fusion grooves, scars, blisters, cracks or other defects, which normally occur when using earlier welding agents at such high welding speeds. The deposited weld was about 3.18 mm wide in each case using a 2.38 mm diameter steel welding electrode containing 1 percent manganese, 0.15 percent carbon, and 0.2 percent silicon.
Sveisemidlet ifølge oppfinnelsen har The welding agent according to the invention has
også vist seg anvendelig ved sveisning av plater opp til 2,54 cm tykke i enkelt lag. Enkeltlagsveiser i 2,54 cm plate ble fremstilt med en hastighet på omkring 27,9 cm/min. under passende sveisebetingelser. also proven useful when welding plates up to 2.54 cm thick in a single layer. Single layer welds in 2.54 cm plate were produced at a speed of about 27.9 cm/min. under suitable welding conditions.
Blant fordelene ved sveisemidlet ifølge oppfinnelsen er at det kan anvendes på smussig, oljet eller rustent metallblikk uten at mangelfulle sveiser dannes. Among the advantages of the welding agent according to the invention is that it can be used on dirty, oiled or rusty sheet metal without defective welds being formed.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1085165 | 1965-08-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO119205B true NO119205B (en) | 1970-04-06 |
Family
ID=20292939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO163555A NO119205B (en) | 1965-08-19 | 1966-06-20 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3428107A (en) |
AT (1) | AT262047B (en) |
DE (1) | DE1692824C3 (en) |
FI (1) | FI45474C (en) |
NO (1) | NO119205B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3839160A (en) * | 1972-06-23 | 1974-10-01 | Hitachi Ltd | Multiple effect evaporator |
JPS5238832B2 (en) * | 1973-08-15 | 1977-10-01 | ||
JPS5294874A (en) * | 1976-02-06 | 1977-08-09 | Asahi Chem Ind Co Ltd | Concentration by multistage multiple effect boiler |
DE2648219C3 (en) * | 1976-10-25 | 1979-04-05 | Wiegand Karlsruhe Gmbh, 7505 Ettlingen | Process for heating a flowing medium different from a product to be evaporated and then dried, which is used, for example, as a heating, transport or treatment medium for this product |
DE3130814A1 (en) * | 1981-08-04 | 1983-02-17 | Metallgesellschaft Ag, 6000 Frankfurt | METHOD FOR CONCENTRATING SLURCHES |
DE3143734A1 (en) * | 1981-11-04 | 1983-05-11 | Hoechst Ag, 6230 Frankfurt | METHOD FOR THE CONTINUOUS RECTIFICATION OF AN ALCOHOL-CONTAINING LIQUID MIXTURE " |
FI73474B (en) * | 1985-04-25 | 1987-06-30 | Tampella Oy Ab | SAETT ATT AOTERVINNA VAERME OCH KEMIKALIER FRAON AVLUT. |
US4687546B1 (en) * | 1985-07-19 | 1996-06-04 | Anglo American Clays Corp | Method of concentrating slurried kaolin |
US4953607A (en) * | 1989-02-17 | 1990-09-04 | A. Ahlstrom | Multistage evaporating system |
CA2126760A1 (en) * | 1991-12-31 | 1993-07-08 | Christopher R. Greig | Evaporative concentration of clay slurries |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR709044A (en) * | 1930-01-02 | 1931-08-01 | Method and apparatus for recovering loose elements from solutions to be evaporated | |
US2544885A (en) * | 1946-02-27 | 1951-03-13 | Gen Am Transport | Vertical tube evaporator |
US2651356A (en) * | 1948-08-25 | 1953-09-08 | Henry M Hunter | Apparatus for evaporation |
US3021265A (en) * | 1957-07-05 | 1962-02-13 | Chicago Bridge & Iron Co | Multiple effect evaporating system |
-
1966
- 1966-06-20 NO NO163555A patent/NO119205B/no unknown
- 1966-07-06 DE DE1692824A patent/DE1692824C3/en not_active Expired
- 1966-07-18 FI FI661915A patent/FI45474C/en active
- 1966-07-27 AT AT718966A patent/AT262047B/en active
- 1966-08-09 US US571313A patent/US3428107A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3428107A (en) | 1969-02-18 |
FI45474C (en) | 1972-06-12 |
DE1692824A1 (en) | 1971-09-30 |
DE1692824C3 (en) | 1975-12-11 |
FI45474B (en) | 1972-02-29 |
DE1692824B2 (en) | 1975-04-30 |
AT262047B (en) | 1968-05-27 |
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