CS201378B1 - Water bath for chemical and electrochemical de-greasing,derusting and activation of steel objects - Google Patents
Water bath for chemical and electrochemical de-greasing,derusting and activation of steel objects Download PDFInfo
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- CS201378B1 CS201378B1 CS786878A CS786878A CS201378B1 CS 201378 B1 CS201378 B1 CS 201378B1 CS 786878 A CS786878 A CS 786878A CS 786878 A CS786878 A CS 786878A CS 201378 B1 CS201378 B1 CS 201378B1
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- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 18
- 229910000831 Steel Inorganic materials 0.000 title claims description 6
- 239000010959 steel Substances 0.000 title claims description 6
- 239000000126 substance Substances 0.000 title claims description 6
- 230000004913 activation Effects 0.000 title claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 25
- 239000011780 sodium chloride Substances 0.000 claims description 12
- 238000005238 degreasing Methods 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- 239000007859 condensation product Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000000176 sodium gluconate Substances 0.000 description 7
- 235000012207 sodium gluconate Nutrition 0.000 description 7
- 229940005574 sodium gluconate Drugs 0.000 description 7
- 238000005554 pickling Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910018137 Al-Zn Inorganic materials 0.000 description 1
- 229910018573 Al—Zn Inorganic materials 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N hydrochloric acid Substances Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 235000004213 low-fat Nutrition 0.000 description 1
- 229910000372 mercury(II) sulfate Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- XIKYYQJBTPYKSG-UHFFFAOYSA-N nickel Chemical group [Ni].[Ni] XIKYYQJBTPYKSG-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Vynález sa týká vodného kúpel’a pre súčasné odmastňovanie, očistenie a odhrdzavenie ocelových materiálov před ich návaznými chemickými a galvanickými povrchovými úpravami.The invention relates to a water bath for simultaneous degreasing, cleaning and rusting of steel materials prior to their subsequent chemical and galvanic surface treatments.
V súčasnej době za účelom predúpravy povrchu před návaznými chemickými, galvanickými povrchovými úpravami a před nanášanim organických povlakov sa najbežnejšie používá technologia chemiokej přípravy povrchu, ktorá zahrňuje samostatné operácie odmastňovania alkalickými kúpePtui alebo organickými rozpúšťadlami a samostatné morenie, resp. odhrdzavenie v anorganických kyselinách. HlavnrAi nevýhodou tejto technologie je potřeba oplachovaolch vodných kúpel’ov medzi odmastňovaním a mořením ( odhrdzavenlm ), Salšou nevýhodou sú straty kovu při moření, ktoré sa pohybujú v rozmedzi 2 až 4 hmot, <$> a straty kyseliny sú ooa 50 %, rozpúšťaním tohto kovu. fialšou nevýhodou moreniá v kyselinách je vznik vodíkovéj křehkosti, ktorá spósobuje krehnutie ocele a má negativny vplyv na návazné povrchové úpravy ( napr, galvanické povlaky ), Použivanie kyselin spósobuje zamorenie ovzdušia na pracovisku, ako aj zníženie bezpečnosti pri práci a vysoký stupeň korozívosti atmosféry.Currently, in order to pre-treat the surface prior to subsequent chemical, electroplating and organic coating applications, chemical surface preparation technology is most commonly used, which includes separate degreasing operations with alkaline baths or organic solvents and separate pickling, respectively. rusting in inorganic acids. The main disadvantage of this technology is the need for rinsing water baths between degreasing and pickling. A further disadvantage is the loss of metal at pickling, which ranges from 2 to 4 wt. metal. a more violent disadvantage of acid pickling is the formation of hydrogen embrittlement, which causes the steel to become brittle and has a negative effect on subsequent surface treatments (eg, galvanic coatings).
Uvedené nedostatky rieši vodný kúpel’ podl’a vynálezu, ktorého podstata spočívá v tom, že pozostáva z 10 až 200 g glukóňanu sodného, 10 až 200 g luhu sodného, 10 až 200 g chloridu sodného na 1 1 vody, pričom kúpel’ mdže ešte obsahovat’ 10 až 200 g uhličitanu sodného, 10 až 200 g křemičitanů sodného, 10 až 200 g fosforečňanu sodného, 10 až 200 g kyanidu sodného, 1 až 5 e povrchovo aktívnych látok, ako napr. vyššie mastné alkoholy a kondenzačněThe above-mentioned drawbacks are solved by the water bath according to the invention, which consists of 10 to 200 g of sodium gluconate, 10 to 200 g of sodium hydroxide, 10 to 200 g of sodium chloride per 1 of water, while the bath may still contain 10 to 200 g sodium carbonate, 10 to 200 g sodium silicates, 10 to 200 g sodium phosphate, 10 to 200 g sodium cyanide, 1 to 5 e surfactants such as higher fatty alcohols and condensation
201 378201 378
201 376 produkty mastnýoh kyselin s glykolom a éterom, ktoré sa bežne používajú v alkallokýoh odmastňovaoloh proatriedkooh. Hmotnostně najoptimálnejšl poměr anorganických soli v kúpell má byt* zhodný,tj. napr* 100 g NaOH : 100 g NaCL : 100 g GNa. Pri zaohovanl takéhoto poměru sa s kúpel’om dosiahnu najefektlvneJšie výsledky. Teohnloky významné množstvo týohto soli v kúpeli je 10 až 200 g 1-1. Kúpel* móže praoovať ohemioky, ako aj eIektroohemioky v rozmedzí tepldt 20 až 80 °C. Pri elektrochemiokom od mastňovanl a odhrdzavenl ea používajú pracovně prúdové podmienky,podobné ako u bežne použlvanýoh odmastňovacloh kúpePooh, tj.201 376 fatty acid products with glycol and ether, which are commonly used in alkaline degreasers for low-fat. The most optimal weight ratio of inorganic salts in the bath is to be the same, i. eg * 100 g NaOH: 100 g NaCL: 100 g GNa. When such a ratio is maintained, the most effective results are obtained with the bath. Teohnloky a significant amount of this salt in the bath is 10 to 200 g 1 -1 . The bath can prime with hemi-carbonates as well as electro-hemiocides in the range of 20 ° C to 80 ° C. In electrochemical chemistry from grease and rust-free ea they use working current conditions similar to commonly used degreasers for the purchase of Pooh, i.
až 15 A dm“\ napátie 5 až 10 V. Kúpel’ móže praoovať v katódiokom, ako aj anódlokom oykle resp. v kombinácii katódioko-anódického cyklu.up to 15 A dm "\ 5 to 10 volts. The bath can be used in cathodic as well as anodal ocular resp. in combination with a cathodic-anodic cycle.
Týmto vodným kúpePom je možno náhradiť súčasne odmastňovaol a odhrdzavujúoi kúpel’, pretože odstraňuje súčaene všetky nečistoty, mastnoty a korozně splodiny a hlavně Fe(OH) pričom takto povrchovo upravený ooePový povrch má vysoký stupeň aktivity. Pri použiti roztoku podl’a vynálezu sú poruchy technologického zariadenia obmedzené na minimum, zlepšuje sa hygiena a bezpečnost’ práce, šetria sa pracovně sily, oplaohové vody a skraouje sa teohnologioký proces a samotné úpravárenské linky.This water bath can be replaced simultaneously with degreasing and rusting baths, since it removes all impurities, grease and corrosion products and mainly Fe (OH) while the surface treated oeP surface has a high degree of activity. When using the solution according to the invention, the process equipment disturbances are minimized, hygiene and safety at work are improved, labor is saved, irrigation water and the theological process and the treatment lines themselves are avoided.
Výhodou kúpel’a podl'a vynálezu je, Že prakticky nenapadá základný ooel’ový materiál, čim sa podstatné predlžuje životnost’ samotného kúpel’a. V súčasnosti nedostatkové anorganické kyseliny sú nahradené glukoňanom sodným, ktorý sa pre daný účel dá s výhodou vyrábať z odpadných surovin cukrovárenského prlemyslu.The advantage of the bath according to the invention is that it practically does not attack the basic ooel material, which substantially extends the life of the bath itself. Currently, inorganic acid deficiencies are replaced by sodium gluconate, which can be advantageously produced from the waste materials of the confectionery industry for this purpose.
Přiklad 1Example 1
Na elektrolytické odhrdzavenie a odmastňovanie ooelOvýoh pleohov sa použil kúpel’ v zloženiFor electrolytic rust removal and degreasing ooelOther bald bath was used
100 g 1“1 glukoňán sodný (CgH^NaO^)100 g 1 ' 1 sodium gluconate (CgH ^ NaO ^)
100 g 1“1 NaOH (hydroxid sodný)100 g 1 “ 1 NaOH (sodium hydroxide)
100 g 1“1 NaCl (ohlorld sodný) g 1“1 Syntapon (zmáčadlo) teplota kúpel’a : 20 °C p100 g 1 " 1 NaCl (sodium chloride) g 1" 1 Syntapone (wetting agent) bath temperature: 20 ° C p
prúdová hustota (katodioká) - 10 A dra“ expozičná doba : 2 minúty katodioky s anodickycurrent density (cathodic) - 10 A dra “exposure time: 2 minutes cathodes with anodic
Kúpel’ sa odskúšal v laboratórnyoh podmienkaoh ako predúprava povrohu ooel’ovýoh pleohov před nanášanira žiarovýoh povlakov na báze Al-Zn oez tavidlo. Povlaky po naneseni vykazovali vePml dobrú priPnavoať k základnému materiálu.The bath was tested in a laboratory condition as a pretreatment surface and before the application of Al-Zn-based heat flux coatings. The coatings after application showed good adhesion to the base material.
Přiklad 2Example 2
Na predúpravu povrohu ooePového plechu před nanášanira niklu ohemlokou oeatou sa použil kúpel’ :A bath was used to pre-treat the oeP sheet surface prior to the nickel coating with the hemispherical oil:
g 1“1 GNa (glukoňán sodný) g 11 NaOH (hydroxid sodný) g 1“1 NaCl (ohlorld sodný) g I“1 NagCOj ( uhličitan sodný )g 1 " 1 GNa (sodium gluconate) g 1 1 NaOH (sodium hydroxide) g 1" 1 NaCl (sodium chloride) g I " 1 NagCO 3 (sodium carbonate)
201 398 g I’1 Na^PO^ (fosforečňan sodný)201 398 g I ' 1 Na 2 PO 4 (sodium phosphate)
Praoovné podmienky : teplota 80 °C doba expozície 15 minútWorking conditions: temperature 80 ° C exposure time 15 minutes
Po nanesení má niklový povlak velmi dobrú přilnavost’.After application, the nickel coating has a very good adhesion.
Přiklad 3Example 3
Chemické niklovánie ocelovýoh vzoriek pre metalografloké výbrusy. Tu sa s výhodou použil kúpel podTa vynálezu pre združené odmastňovanie a odstraňovanie oxydov před nanášením che tniokého niklu pre přípravu metalografického výbrusu na pozorovanie povrchu ooell. Použil sa kúpel* :Chemical nickel plating of steel samples for metallographlographic sections. Here, the bath according to the invention was preferably used for the combined degreasing and removal of oxides prior to the deposition of the nickel nickel for the preparation of metallographic cuts to observe the ooell surface. Bath used *:
100 g I”1 Gna (glukoňan sodný)100 g I ” 1 Gna (sodium gluconate)
100 g i“1 NaOH (hydroxid sodný)100 g -1 NaOH (sodium hydroxide)
100 g l^NaCl ( chlorid sodný)100 g 1 ^ NaCl (sodium chloride)
Teplota kúpela : 5° až 60 °C doba expozloie 5 minútBath temperature: 5 ° to 60 ° C exposure time 5 minutes
Pri príprave metalografického výbrusu nedošlo k poškodeniu povrohu na pozorovanej vzorke vzhladom k velmi dobréj přilnavosti niklového povlaku.During the metallographic cut preparation, the surface of the observed sample was not damaged due to the very good adhesion of the nickel coating.
Příklad 4Example 4
Na výskům kvality elektrolytického odmastňovanla ocelových plechov - vzoriek sa použili vodné kúpele o zložení :Water baths with the following composition were used for quality studies of electrolytic degreasing of steel sheets - samples:
a/ 50 g I1 glukoňan sodný (CgH^NaO?) 50 g 1*’1ohlorid sodný ( NaCl) g Γ1 hydroxid sodný (NaOH) g 1“1 kremičitan sodný (Na„SiO_) b/ 50 g 1 50 g 1 g 1 glukoňan sodný (CgH^NaO^) chlorid sodný (NaCl) hydroxid sodný (NaOH) g Γ1kyanid sodný (NaCN)a / 50 g I 1 sodium gluconate (CgH 2 NaO 2) 50 g 1 * 1 sodium chloride (NaCl) g Γ 1 sodium hydroxide (NaOH) g 1 " 1 sodium silicate (Na" SiO_) b / 50 g 1 50 g 1 g 1 sodium gluconate (CgH 2 NaO 4) sodium chloride (NaCl) sodium hydroxide (NaOH) g sodium an 1 cyanide (NaCN)
Po odmastnení, odhrdzaveni a aktivácii sa vyhodnocovala čistota a aktivita povrchu ooe1’ovýoh vzoriek elektrochemickou metodou. Výsledky sa porovnávali so vzorkami povrhovo upravenými klasickými kúpelmi (vodný alkalický kúpel - Radalod, moriaci kúpel v kyselinách HgSO^ - kyselina sírová, NC1 - kyselina solná). Iíúpele podlá bodu a/ a b/ v aktivitě povrchu vykazovali min. úroveň ako klasické používané kúpele, pričom v čistotě boli na vyššej úrovni.After degreasing, rusting and activation, the cleanliness and surface activity of the samples was evaluated by an electrochemical method. The results were compared with samples treated with conventional baths (aqueous alkaline bath - Radalod, pickling bath in HgSO4 - sulfuric acid, NC1 - hydrochloric acid). The baths according to point a / and b / in the surface activity showed min. level as the classic spa used, while the purity was at a higher level.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS786878A CS201378B1 (en) | 1978-11-30 | 1978-11-30 | Water bath for chemical and electrochemical de-greasing,derusting and activation of steel objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS786878A CS201378B1 (en) | 1978-11-30 | 1978-11-30 | Water bath for chemical and electrochemical de-greasing,derusting and activation of steel objects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS201378B1 true CS201378B1 (en) | 1980-11-28 |
Family
ID=5428562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS786878A CS201378B1 (en) | 1978-11-30 | 1978-11-30 | Water bath for chemical and electrochemical de-greasing,derusting and activation of steel objects |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS201378B1 (en) |
-
1978
- 1978-11-30 CS CS786878A patent/CS201378B1/en unknown
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