【長迎資訊】不銹鋼有關(guān)知識
發(fā)布時間：2020-08-31 點擊次數(shù)：850
不銹鋼的不銹性和耐蝕性是由於外表上富丁氧化膜（鈍化膜）的造成。這種不銹性和耐蝕性是相對的。有實驗標(biāo)明，鋼在空氣、水等弱介質(zhì)中和硝 等氧化性介質(zhì)中，其耐蝕性隨鋼中丁含水量的減少而進步，當(dāng)丁含量到達(dá)一定的百分比時，鋼的耐蝕性產(chǎn)生漸變，即從易生銹到不易生銹，從不耐蝕到耐侵蝕。
The rust resistance and corrosion resistance of stainless steel are caused by the butyl-rich oxide film (passivation film) on the surface. This rust resistance and corrosion resistance are relative. Experiments have shown that steel is resistant to weak media such as air and water and oxidizing media such as nitrate.
簡單地說，不銹鋼就是不容易生銹的鋼，理論上一局部不銹鋼，既有不銹性，又有耐性（耐蝕性）。不銹鋼的不銹性和耐蝕性是由於其外表上富丁氧化膜（鈍化膜）的造成。這種不銹性和耐蝕性是根據(jù)環(huán)境變化的。實驗標(biāo)明，鋼在空氣、水等弱介質(zhì)中與硝等氧化性介質(zhì)中，其耐蝕性隨鋼中丁含水量的減少而進步，當(dāng)丁含量到達(dá)一定的百分比時，鋼的耐蝕性產(chǎn)生漸變，即從易生銹到不易生銹，從不耐蝕到耐侵蝕。不銹鋼的分類辦法很多。
Simply put, stainless steel is steel that is not easy to rust. In theory, a part of stainless steel has both rust resistance and resistance (corrosion resistance). The rust resistance and corrosion resistance of stainless steel are caused by the butyl-rich oxide film (passivation film) on the surface. This rust resistance and corrosion resistance vary according to the environment. The experiment shows that the corrosion resistance of steel in weak media such as air and water and oxidizing media such as nitrate increases with the decrease of the water content in the steel. When the content reaches a certain percentage, the corrosion resistance of steel Produces a gradual change, that is, from easy to rust to not easy to rust, from not resistant to corrosion. There are many ways to classify stainless steel
1．按室溫下的金相組織構(gòu)造：馬氏體型鋼、奧氏體型不銹鋼、鐵素體不銹鋼、雙相不銹鋼和積淀軟化不銹鋼；
2．按主要化學(xué)成分：丁不銹鋼和丁鎳不銹鋼兩大零碎；
3．按用途則有：耐硝 不銹鋼、耐硫 不銹鋼、耐海水不銹鋼等等；
4．按耐蝕類型：耐點蝕不銹鋼、耐應(yīng)力侵蝕不銹鋼、耐晶間侵蝕不銹鋼等；
5．按性能特點：無磁不銹鋼、易切削不銹鋼、高溫不銹鋼、高強度不銹鋼等。
1. Metallographic structure at room temperature: martensitic steel, austenitic stainless steel, ferritic stainless steel, duplex stainless steel and precipitation hardening stainless steel;
2. Main chemical composition: two systems of butyl-stainless steel and butyl-nickel stainless steel;
3. The uses are divided into: nitrate-resistant stainless steel, sulfur-resistant stainless steel, seawater-resistant stainless steel, etc.;
4. Corrosion resistance type: pitting corrosion resistant stainless steel, stress corrosion resistant stainless steel, intergranular corrosion resistant stainless steel, etc.;
5. Features: Non-magnetic stainless steel, free-cutting stainless steel, low-temperature stainless steel, high-strength stainless steel, etc.
由於不銹鋼材具備優(yōu)良的耐蝕性、成型性、相容性以及在很寬溫度范疇內(nèi)的強韌性等系列特點，所以在重工業(yè)、輕工業(yè)、生存用操行業(yè)以及修建裝璜等行業(yè)中獲獲得寬泛的利用。
總的說不銹鋼的不銹是一種對的性質(zhì)，不是絕對的是相對于碳鋼而言。不銹鋼不容易生銹，但不是絕對不生銹，只是在相同條件和環(huán)境中，較碳鋼而言不容易被腐蝕和生銹。對比普通的鐵和鍍鋅板來說就跟耐用與“不銹”。
Because stainless steel has excellent corrosion resistance, formability, compatibility, and toughness in a wide range of temperature, it has been widely used in heavy industry, light industry, survival operation industry, and construction and decoration industries. Of use.
Generally speaking, stainless steel is a right property, not absolute compared to carbon steel. Stainless steel is not easy to rust, but it is not absolutely not rusty, but under the same conditions and environment, it is less likely to be corroded and rusted than carbon steel. Compared with ordinary iron and galvanized sheet, it is more durable andstainless".
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