Chemically removing workpiece, comprises treating the workpiece to be treated with first aqueous acidic solution of oxidizing compound in first process step, and treating the workpiece resulting from first process step with second solution
The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process...
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| creator | SPIES, WOLFGANG MEYN, MARTIN-NIKOLAUS BUXBAUM, GUNTER |
| description | The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process step, and treating the workpiece resulting from the second process step with a third solution containing builder compound, diluted solution and hydrogen peroxide and/or hydrogen peroxide-releasing compounds in a third process step, where the zinc casting workpiece is processed with the method. The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process step, and treating the workpiece resulting from the second process step with a third solution containing builder compound, diluted solution and hydrogen peroxide and/or hydrogen peroxide-releasing compounds in a third process step, where the zinc casting workpiece is processed with the method. The concentration of the oxidizing compound is 1-30 wt.% related to the treatment bath of the first process step. The treatment bath of the first process step comprises a complexing agent, which contains tartrates and citrates. The first process step is additionally carried out in the presence of surface-active material. The surface-active material is used in a quantity of 0.01-5 g/L related to the treatment bath of the first process step. The concentration of the builder compound in the treatment bath of the second process step is 1-30 wt.% related to the treatment bath. The second treatment bath comprises pickling inhibitors. An energy input is exercised in the second process step by ultrasound of 2-60 W/L. The concentration of the builder compound in the treatment bath of the third process step is 0.5-20 wt.% related to the treatment bath. The concentration of the diluted solution in the treatment bath of the third process step is 0.1-5 wt.% related to the treatment bath. The concentration of the hydrogen peroxide in the treatment bath of the third process step is 0.1-5 wt.% related to the treatment bath. The surface-active material is surfactant. An independent claim is included for a workpiece.
Beschrieben wird ein Verfahren zum chemischen Entgraten von chemischen Werkstücken, welches |
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Beschrieben wird ein Verfahren zum chemischen Entgraten von chemischen Werkstücken, welches durch die Verfahrensschritte gekennzeichnet ist, dass (1) in einem ersten Verfahrensschritt die zu behandelnden Werkstücke mit mindestens einer ersten wässrigen sauren Lösung zumindest einer oxidierenden Verbindung behandelt werden und (2) in einem zweiten Verfahrensschritt die aus Verfahrensschritt (1) resultierenden Werkstücke mit mindestens einer zweiten Lösung, umfassend mindestens ein oberflächenaktives Mittel und mindestens eine Builderverbindung, behandelt werden und (3) in einem dritten Verfahrensschritt die aus Verfahrensschritt (2) resultierenden Werkstücke mit mindestens einer dritten Lösung, umfassend mindestens eine Builderverbindung, eine verdünnte Lösung wie aus Verfahrensschritt (2) und Wasserstoffperoxid und/oder Wasserstoffperoxid-abspaltende Verbindungen, behandelt werden.</description><language>eng ; ger</language><subject>CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; METALLURGY ; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 ; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE</subject><creationdate>2011</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20110203&DB=EPODOC&CC=DE&NR=102009028097A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20110203&DB=EPODOC&CC=DE&NR=102009028097A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SPIES, WOLFGANG</creatorcontrib><creatorcontrib>MEYN, MARTIN-NIKOLAUS</creatorcontrib><creatorcontrib>BUXBAUM, GUNTER</creatorcontrib><title>Chemically removing workpiece, comprises treating the workpiece to be treated with first aqueous acidic solution of oxidizing compound in first process step, and treating the workpiece resulting from first process step with second solution</title><description>The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process step, and treating the workpiece resulting from the second process step with a third solution containing builder compound, diluted solution and hydrogen peroxide and/or hydrogen peroxide-releasing compounds in a third process step, where the zinc casting workpiece is processed with the method. The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process step, and treating the workpiece resulting from the second process step with a third solution containing builder compound, diluted solution and hydrogen peroxide and/or hydrogen peroxide-releasing compounds in a third process step, where the zinc casting workpiece is processed with the method. The concentration of the oxidizing compound is 1-30 wt.% related to the treatment bath of the first process step. The treatment bath of the first process step comprises a complexing agent, which contains tartrates and citrates. The first process step is additionally carried out in the presence of surface-active material. The surface-active material is used in a quantity of 0.01-5 g/L related to the treatment bath of the first process step. The concentration of the builder compound in the treatment bath of the second process step is 1-30 wt.% related to the treatment bath. The second treatment bath comprises pickling inhibitors. An energy input is exercised in the second process step by ultrasound of 2-60 W/L. The concentration of the builder compound in the treatment bath of the third process step is 0.5-20 wt.% related to the treatment bath. The concentration of the diluted solution in the treatment bath of the third process step is 0.1-5 wt.% related to the treatment bath. The concentration of the hydrogen peroxide in the treatment bath of the third process step is 0.1-5 wt.% related to the treatment bath. The surface-active material is surfactant. An independent claim is included for a workpiece.
Beschrieben wird ein Verfahren zum chemischen Entgraten von chemischen Werkstücken, welches durch die Verfahrensschritte gekennzeichnet ist, dass (1) in einem ersten Verfahrensschritt die zu behandelnden Werkstücke mit mindestens einer ersten wässrigen sauren Lösung zumindest einer oxidierenden Verbindung behandelt werden und (2) in einem zweiten Verfahrensschritt die aus Verfahrensschritt (1) resultierenden Werkstücke mit mindestens einer zweiten Lösung, umfassend mindestens ein oberflächenaktives Mittel und mindestens eine Builderverbindung, behandelt werden und (3) in einem dritten Verfahrensschritt die aus Verfahrensschritt (2) resultierenden Werkstücke mit mindestens einer dritten Lösung, umfassend mindestens eine Builderverbindung, eine verdünnte Lösung wie aus Verfahrensschritt (2) und Wasserstoffperoxid und/oder Wasserstoffperoxid-abspaltende Verbindungen, behandelt werden.</description><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>METALLURGY</subject><subject>MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25</subject><subject>NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjj1OAzEQhbehQMAdpqELkhMKSIlCEAegj4z3bXaE12M8YwJcmiuwS4JoQKIa6f18b46bj1WPgYOP8Y0KBnnhtKWdlKfMCJhRkCEXVihZgbfJtR4_CTKhR-xNtLRj66njokb-uUKqkg_cciCVWI0lkXQkr6P0PrEmvNTUEqdDLRcJUCU15Bn50fpjuEBr_NK7IsMv7f0ziiAj5Hv-tDnqfFScHe5Jc363fljdXyDLBpp9QIJtbtdzt3Bu6RbXbnl1M7_8b-4TzXJ2HQ</recordid><startdate>20110203</startdate><enddate>20110203</enddate><creator>SPIES, WOLFGANG</creator><creator>MEYN, MARTIN-NIKOLAUS</creator><creator>BUXBAUM, GUNTER</creator><scope>EVB</scope></search><sort><creationdate>20110203</creationdate><title>Chemically removing workpiece, comprises treating the workpiece to be treated with first aqueous acidic solution of oxidizing compound in first process step, and treating the workpiece resulting from first process step with second solution</title><author>SPIES, WOLFGANG ; MEYN, MARTIN-NIKOLAUS ; BUXBAUM, GUNTER</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE102009028097A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; ger</language><creationdate>2011</creationdate><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>METALLURGY</topic><topic>MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25</topic><topic>NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE</topic><toplevel>online_resources</toplevel><creatorcontrib>SPIES, WOLFGANG</creatorcontrib><creatorcontrib>MEYN, MARTIN-NIKOLAUS</creatorcontrib><creatorcontrib>BUXBAUM, GUNTER</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SPIES, WOLFGANG</au><au>MEYN, MARTIN-NIKOLAUS</au><au>BUXBAUM, GUNTER</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Chemically removing workpiece, comprises treating the workpiece to be treated with first aqueous acidic solution of oxidizing compound in first process step, and treating the workpiece resulting from first process step with second solution</title><date>2011-02-03</date><risdate>2011</risdate><abstract>The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process step, and treating the workpiece resulting from the second process step with a third solution containing builder compound, diluted solution and hydrogen peroxide and/or hydrogen peroxide-releasing compounds in a third process step, where the zinc casting workpiece is processed with the method. The method comprises treating a workpiece to be treated with a first aqueous acidic solution of an oxidizing compound in a first process step, treating the workpiece resulting from the first process step with a second solution containing surface-active agent and builder compound in a second process step, and treating the workpiece resulting from the second process step with a third solution containing builder compound, diluted solution and hydrogen peroxide and/or hydrogen peroxide-releasing compounds in a third process step, where the zinc casting workpiece is processed with the method. The concentration of the oxidizing compound is 1-30 wt.% related to the treatment bath of the first process step. The treatment bath of the first process step comprises a complexing agent, which contains tartrates and citrates. The first process step is additionally carried out in the presence of surface-active material. The surface-active material is used in a quantity of 0.01-5 g/L related to the treatment bath of the first process step. The concentration of the builder compound in the treatment bath of the second process step is 1-30 wt.% related to the treatment bath. The second treatment bath comprises pickling inhibitors. An energy input is exercised in the second process step by ultrasound of 2-60 W/L. The concentration of the builder compound in the treatment bath of the third process step is 0.5-20 wt.% related to the treatment bath. The concentration of the diluted solution in the treatment bath of the third process step is 0.1-5 wt.% related to the treatment bath. The concentration of the hydrogen peroxide in the treatment bath of the third process step is 0.1-5 wt.% related to the treatment bath. The surface-active material is surfactant. An independent claim is included for a workpiece.
Beschrieben wird ein Verfahren zum chemischen Entgraten von chemischen Werkstücken, welches durch die Verfahrensschritte gekennzeichnet ist, dass (1) in einem ersten Verfahrensschritt die zu behandelnden Werkstücke mit mindestens einer ersten wässrigen sauren Lösung zumindest einer oxidierenden Verbindung behandelt werden und (2) in einem zweiten Verfahrensschritt die aus Verfahrensschritt (1) resultierenden Werkstücke mit mindestens einer zweiten Lösung, umfassend mindestens ein oberflächenaktives Mittel und mindestens eine Builderverbindung, behandelt werden und (3) in einem dritten Verfahrensschritt die aus Verfahrensschritt (2) resultierenden Werkstücke mit mindestens einer dritten Lösung, umfassend mindestens eine Builderverbindung, eine verdünnte Lösung wie aus Verfahrensschritt (2) und Wasserstoffperoxid und/oder Wasserstoffperoxid-abspaltende Verbindungen, behandelt werden.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE |
| title | Chemically removing workpiece, comprises treating the workpiece to be treated with first aqueous acidic solution of oxidizing compound in first process step, and treating the workpiece resulting from first process step with second solution |
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