본문 바로가기
기술자료(기술정보)

산세정(pickle passivation)과 전해연마(electropolyshing)의 차이점-1

by 대림열기 2023. 1. 31.
반응형

What is the difference between pickle passivation and electropolishing?

산세정과 전해연마의 가장큰 차이점은 표면광택과 표면거칠기이다.

아래 그림을 보면 알 수 있다 위쪽은 전해연마이고 아래는 산세정을 한 금속의 표면 사진이다.

산세정은 하얀색 표면을 가지며, 전해연마는 거울과 같이 빛나는 표면을 가진다.

전해연마는 산세정에 비해 50% 정도 부드러운 표면 거칠기를 갖는다.

 

 

The main difference between pickle passivation and electropolishing is the appearance and RA (roughness average) of the stainless material. In the photo, an electropolished sample is shown above a pickle passivated sample. The pickle passivated sample has a white appearance, while the electropolished sample has a mirror-like, shiny finish.

Pickle Passivation is the immersion of metal in a pickling bath such as nitric-hydroflouric acid. The process removes metal such as impurities and heat marks from welds.

Electropolishing is an electro-chemical process that removes surface material from stainless steel. The process typically starts with an immersion of the component into a controlled bath of electrolyte that is charged with a DC power supply. Apache’s RA tests show improvements up to 50% smoother, depending on the material.

(출처:https://www.apachestainless.com/news/blog/what-is-the-difference-between-pickle-passivation-and-electropolishing)

 

 

반응형

댓글