{"id":309,"date":"2018-04-13T15:09:39","date_gmt":"2018-04-13T06:09:39","guid":{"rendered":"http:\/\/wptest2.mir9.co.kr\/?page_id=309"},"modified":"2018-05-04T18:15:45","modified_gmt":"2018-05-04T09:15:45","slug":"ast-207","status":"publish","type":"page","link":"https:\/\/www.cychem.co.kr\/en\/product\/scale-remover-chemical-polisher\/ast-207\/","title":{"rendered":"AST-207"},"content":{"rendered":"

AST-207<\/p>\n<\/div><\/section>\n

SUS Scale Remover (liquid type)<\/p>\n<\/div><\/section>\n

Since stainless steel is corrosion resistant material, not much of oxide scale forms. However, scale forms from heat treatment which is to make the surface even. In order to remove the smut, a mixture of nitric acid and hydrofluoric acid is widely used. Those substances are highly toxic and very hazardous when in contact with human body. It also produces large amount of fume (NO, NO2, HF) and creates poor and dangerous working conditions.<\/p>\n

AST-207<\/strong> is developed to solve these problems ideally.<\/p>\n<\/div><\/section>\n

<\/div><\/div>\n

[Features]<\/p>\n<\/div><\/section>\n

\u2022 Shows excellent removal speed on scale
\n\u2192 improves productivity
\n\u2022 Shows low harmfulness when in contact with human body, barely creates fume (NO, NO2, HF)
\n\u2192 accords with environmental standards, reduces NOX gas disposal cost
\n\u2022 Surface roughness (glossiness) improves since the solution does not dissolve the target metal and no excessive corrosion occurs
\n\u2192 improves product quality<\/p>\n<\/div><\/section>\n

[ Properties and method ]<\/p>\n<\/div><\/section>\n

\n\n\n\n\n\n
Appearance<\/th>\n\u00a0Colorless transparent liquid<\/td>\nConcentration<\/th>\n5~20% diluted in water<\/td>\n<\/tr>\n
Odor<\/th>\nLight acid odor<\/td>\nTemp.<\/th>\n55 ~ 60 \u2103<\/td>\n<\/tr>\n
pH(10%)<\/th>\n–<\/td>\nMethod<\/th>\nDipping, dipping ultrasonic<\/td>\n<\/tr>\n
S\/G (g\/ml)<\/th>\n1.11 \u00b1 0.02<\/td>\nPacking<\/th>\n20L (pail) \/ 200L (drum)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/section>\n

\u203b Solution management<\/p>\n<\/div><\/section>\n

    \n
  • (1) Check the initial acidity. (Use tanks and heaters made of acid and heat resistant material such as PP, PE, teflon, etc.)<\/li>\n
  • (2) When the acidity and the amount of the solution decrease, add adequate amount of the original solution in order to reset the acidity back to its initial level<\/li>\n
  • (3) Change to new solution when concentration of iron ion becomes 60~90g\/\u2113.<\/li>\n<\/ul>\n<\/div><\/section>\n

    \u203b Wastewater treatment<\/p>\n<\/div><\/section>\n

    To minimize the amount of the sludge, treat with caustic soda + calcium chloride or caustic soda + calcium hydroxide.<\/p>\n<\/div><\/section>\n

    [ Application ]<\/p>\n<\/div><\/section>\n

    Applicable on all types of stainless steel (Pipe, angle, hot rolled coil, cold rolled coil, sheet, Wire, rod, etc.)<\/p>\n<\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":216,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"template-page.php","meta":[],"_links":{"self":[{"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/pages\/309"}],"collection":[{"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/comments?post=309"}],"version-history":[{"count":3,"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/pages\/309\/revisions"}],"predecessor-version":[{"id":892,"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/pages\/309\/revisions\/892"}],"up":[{"embeddable":true,"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/pages\/216"}],"wp:attachment":[{"href":"https:\/\/www.cychem.co.kr\/en\/wp-json\/wp\/v2\/media?parent=309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}