Hауково-Виробничий Упроваджуючий Центр Обласної Ради Товариства Винахідників Та Раціоналізаторів України "Hоватор"
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Application filed by Hауково-Виробничий Упроваджуючий Центр Обласної Ради Товариства Винахідників Та Раціоналізаторів України "Hоватор"filedCriticalHауково-Виробничий Упроваджуючий Центр Обласної Ради Товариства Винахідників Та Раціоналізаторів України "Hоватор"
Priority to UA94040964ApriorityCriticalpatent/UA18937A/en
Publication of UA18937ApublicationCriticalpatent/UA18937A/en
The invention relates to the pipe manufacturing and can be used at the restoration of pipes from copper and alloys thereof which worked-out the service resource in the heat-exchange units and which pitting factor is not more than 0. A method includes removal of surface layer. At that pipes are subject to additional treatment according to which firstly the annealing is carried out and than cold deformation of pipes.
UA94040964A1993-10-151993-10-15StarWriterMETHOD FOR RESTORATION OF PIPES FROM COPPER AND ALLOYS THEREOF
UA18937A
(en)
Corrosion inhibitor for acid etching bath in particular those for femoving boiler scale and rust from water pipings and similar installations made of steel, copper and aluminium and method of obtaining such inhibitor