SU113775A1 - Method of chemical etching of stainless steels - Google Patents

Method of chemical etching of stainless steels

Info

Publication number
SU113775A1
SU113775A1 SU590499A SU590499A SU113775A1 SU 113775 A1 SU113775 A1 SU 113775A1 SU 590499 A SU590499 A SU 590499A SU 590499 A SU590499 A SU 590499A SU 113775 A1 SU113775 A1 SU 113775A1
Authority
SU
USSR - Soviet Union
Prior art keywords
stainless steels
chemical etching
etching
product
hydrogen peroxide
Prior art date
Application number
SU590499A
Other languages
Russian (ru)
Inventor
Н.В. Боева
Н.Л. Самородова
Original Assignee
Н.В. Боева
Н.Л. Самородова
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 Н.В. Боева, Н.Л. Самородова filed Critical Н.В. Боева
Priority to SU590499A priority Critical patent/SU113775A1/en
Application granted granted Critical
Publication of SU113775A1 publication Critical patent/SU113775A1/en

Links

Landscapes

  • ing And Chemical Polishing (AREA)

Description

Изобретение относитс  к способам химического травлени  нержавеющих сталей в растворах неорганических кислот.This invention relates to methods of chemical etching of stainless steels in solutions of inorganic acids.

Известные способы предусматривают механическое удаление продуктов травлени  с поверхности издели , что св зано с большими затратами труда и времени и не всегда дает хорошее качество очистки, например , при обработке внутренних поверхностей изделий.The known methods provide for the mechanical removal of etching products from the surface of the product, which is associated with high labor and time costs and does not always give good quality cleaning, for example, when processing the internal surfaces of products.

Дл  устранени  указанных недостатков предлагаетс , согласно изобретению , изделие после травлени , без промывки водой обрабатывать раствором перекиси водорода. Рекомендуетс  носле травлени  в смеси минеральных кислот известных составов , например, 35% сол ной, 10% азотной и 3% серной кислот и 57% воды без промежуточной промывки издели  водой обрабатывать протравленные поверхности 15-20% .ным водным раствором перекиси водорода с выдержкой до полного удалени  шлама и окалины.In order to eliminate the above disadvantages, according to the invention, the product after etching, without washing with water, is treated with a solution of hydrogen peroxide. It is recommended that etching in a mixture of mineral acids of known compositions, for example, 35% hydrochloric, 10% nitric and 3% sulfuric acids and 57% water without intermediate washing the product with water, treat the etched surfaces with a 15-20% aqueous solution of hydrogen peroxide with a holding time complete removal of sludge and scale.

Удаление продуктов травлени  происходит в результате бурной реакции разложени  перекиси водорода в присутствии шлама. Параллельно с удалением шлама и окалины происходит пассиваци  поверхности издели . Описанный способ травлени  обеспечивает высокую производительность и хорошее качество протравленных поверхностей изделий из нержавеюш;их сталей.Removal of etching products occurs as a result of the violent reaction of decomposition of hydrogen peroxide in the presence of sludge. In parallel with the removal of sludge and scale, the surface of the product is passivated. The etching method described provides high performance and good quality of the etched surfaces of stainless steel products, and their steels.

П р е д iv е т изобретени P rede iv of the invention

Способ химического травлени  нержавеющих сталей в растворах неорганических кислот, отличающ и и с   тем, что, с целью удалени  шлама и окислов с протравленной поверхности, издели  без промывки водой носле травлени  обрабатывают раствором перекиси водорода .The method of chemical etching of stainless steels in solutions of inorganic acids, is also distinguished by the fact that, in order to remove sludge and oxides from the etched surface, the product is treated with hydrogen peroxide solution without washing with water during etching.

SU590499A 1958-01-24 1958-01-24 Method of chemical etching of stainless steels SU113775A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU590499A SU113775A1 (en) 1958-01-24 1958-01-24 Method of chemical etching of stainless steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU590499A SU113775A1 (en) 1958-01-24 1958-01-24 Method of chemical etching of stainless steels

Related Child Applications (2)

Application Number Title Priority Date Filing Date
SU782655043A Addition SU706577A2 (en) 1978-07-31 1978-07-31 Electric-hydraulic drive
SU782653542A Addition SU720201A2 (en) 1978-07-31 1978-07-31 Electrohydraulic drive

Publications (1)

Publication Number Publication Date
SU113775A1 true SU113775A1 (en) 1958-11-30

Family

ID=48386200

Family Applications (1)

Application Number Title Priority Date Filing Date
SU590499A SU113775A1 (en) 1958-01-24 1958-01-24 Method of chemical etching of stainless steels

Country Status (1)

Country Link
SU (1) SU113775A1 (en)

Similar Documents

Publication Publication Date Title
SU113775A1 (en) Method of chemical etching of stainless steels
GB943652A (en) Method and apparatus for surface cleaning using ultrasonic energy
US3529998A (en) Pickling process
US2655481A (en) Oxide removing bath
GB763391A (en) A process and apparatus for de-scaling metals
US1918817A (en) Art of removing lead from tubes and other articles
GB1126232A (en) A method of treating a waste acid solution obtained from pickling silicon steel sheets
SU412304A1 (en)
SU139997A1 (en) The method of treatment of thermal power waters
SU112274A1 (en) Method of etching letterpress forms
US1398507A (en) Method of and composition fob clbarzhg metals
SU140298A1 (en) Solution for removing scale and oxides from parts made of copper and alloys based on it
SU125801A1 (en) Method of cleaning reactors
SU145105A1 (en) Bath (electrolyte) for the chemical polishing of aluminum and its alloys
GB933390A (en) Improvements in process for the treatment of asbestos
SU61606A1 (en) Etching method for producing thin sheet steel
SU521354A1 (en) Solution for chemical cleaning of metal products
GB1413649A (en) Accelerating the cleaning of metal surfaces by means of acid cleaning baths
SU424920A1 (en) SOLUTION FOR REMOVAL OF GRINDING SLUDGE FROM THE SURFACE OF METALS
SU123383A1 (en) Method of making pickling additive
SU968099A1 (en) Solution for washing steel parts after alkaline bath
GB1025366A (en) Removal of scale deposits from the inside of evaporator tubes and the like
SU140297A1 (en) The method of removing scale from the surface of semi-finished titanium and its alloys
DE818630C (en) Procedure for removing scale
DE842946C (en) Process for removing scale and other incrustations from water-carrying systems, in particular from steam boilers