Factors Influencing Acid Pickling Quality of 174PH Steel Investment Casting

Zhou WendaYu Yibin

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Factors Influencing Acid Pickling Quality of 174PH Steel Investment Casting
Issue 3, (1999)
Published： 1999 ，
DOI：

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[1]周文达,余义彬.影响17-4PH钢精铸件酸洗质量的因素[J].特种铸造及有色合金,1999(03):35-37.

Zhou WendaYu Yibin. Factors Influencing Acid Pickling Quality of 174PH Steel Investment Casting. [J]. Special Casting & Nonferrous Alloys (3).(1999)
[1]周文达,余义彬.影响17-4PH钢精铸件酸洗质量的因素[J].特种铸造及有色合金,1999(03):35-37. DOI：

Zhou WendaYu Yibin. Factors Influencing Acid Pickling Quality of 174PH Steel Investment Casting. [J]. Special Casting & Nonferrous Alloys (3).(1999) DOI：

摘要

精铸件有其特殊性，影响精铸件酸洗质量的因素不仅与合金的耐腐蚀性有关，更取决于酸洗液对铸件氧化皮的清除能力。采用盐酸型酸洗液取代硫酸或硝酸型酸洗液，乃是１７－４ＰＨ钢精铸件酸洗的首选工艺方案

Abstract

The investment casting has its specific characteristic. Factors influencing the acid pickling quality of investment casting not only relate to corrosion resistance of alloy

but depend on the ability of acid pickling solution to casting scale removal. For 174PH steel investment casting HCl acid pickling solution type has technologyical preference to H2SO4 or HNO3 types.