<span id="n59pf"></span>
<strike id="n59pf"></strike><strike id="n59pf"><i id="n59pf"></i></strike>
<strike id="n59pf"><dl id="n59pf"></dl></strike>
<strike id="n59pf"></strike>
<span id="n59pf"><video id="n59pf"></video></span>
<strike id="n59pf"></strike>
<strike id="n59pf"></strike>
<span id="n59pf"><dl id="n59pf"></dl></span>
<strike id="n59pf"></strike>
<span id="n59pf"></span>
<th id="n59pf"><video id="n59pf"><strike id="n59pf"></strike></video></th>
<span id="n59pf"></span>
<strike id="n59pf"></strike>
<span id="n59pf"></span>
<progress id="n59pf"><video id="n59pf"><strike id="n59pf"></strike></video></progress>
<strike id="n59pf"><i id="n59pf"></i></strike>
<span id="n59pf"><video id="n59pf"><strike id="n59pf"></strike></video></span>
<span id="n59pf"></span><strike id="n59pf"><i id="n59pf"></i></strike>

Stainless steel screws rusty

2014-09-17 131

Stainless steel screws combinations in our daily lives is mainly used in electrical, electronics, machinery and equipment, electronics, shipbuilding, chemicals, water, and so many other industries, and its aim is to make it to the fastening device between product parts and components, but when put into use, through a long period of observation we will find a combination of stainless steel screws rusting phenomenon will occur, which it why would rust? Here let us take a look at it.
Many people may think that stainless steel material will not rust, this thought is wrong. SUS304 stainless steel combination of screws in a particular case, or will rust. For example: a combination of stainless steel screws in the humid air which led to the electrochemical reaction, the combination of stainless steel screws surface damage, referred to electrochemical corrosion. Stainless steel surfaces are not careful combination of screws adhesion of organic juice in water oxygen to form organic acids, organic acids long is a combination of stainless steel screws corrosion. Stainless steel screws to air pollution which combination (such as sulfur dioxide, nitrogen oxides, carbon monoxide), the case of condensate. Formation of sulfuric acid, nitric acid, can cause chemical corrosion. Stainless steel screws surface adhesion combination of acid, alkali, salt and other substances, causing localized corrosion.

Recommended news
又粗又硬又黄又爽免费的视频_影音先锋AV网站_善良的翁熄日本中文字幕_日本公与熄乱理在线西瓜