熱門關鍵詞：濟南彩鋼板 | 濟南復合板 | 濟南彩鋼瓦 | 濟南c型鋼 | 濟南鋼結構 |
人們常以磁鐵吸附彩鋼板材，驗證其優劣(yōu liè) 和真偽，不吸無磁，認為是好的 ，貨真價實；吸者有磁性，則認為是冒牌假貨。玻鎂彩鋼板有機聚合物的良好著色性、成型性、耐蝕性、裝飾性、又有鋼板的高強度和易加工性，能很容易地進行沖壓裁剪、彎曲、深沖等加工。彩鋼板剛度好：由于巖棉芯材與兩層鋼板粘結成一個整體，共同工作，在加上屋面板上表面起波壓型，其整體鋼度遠勝于壓型板夾巖棉（玻璃絲棉）的現場復合板材。其實，這是一種極其片面的 、不切實的 錯誤的 辨別方法。
People often use magnets to adsorb color steel plates, to verify their merits (Y ? u Li è) and authenticity, not to absorb non-magnetic, which is considered to be good, the goods are real; the attractors are magnetic, which is considered to be fake. The organic polymer of glass magnesium color steel plate has good colorability, formability, corrosion resistance, decoration, high strength and easy processing of steel plate, which can easily carry out stamping, cutting, bending, deep drawing and other processing. The rigidity of color steel plate is good: because the core material of rock wool and two layers of steel plate are bonded as a whole and work together, the overall rigidity of the steel plate is much better than that of the field composite plate with rock wool (fiberglass wool) on the roof panel. In fact, this is an extremely one-sided and impractical wrong way to distinguish.
There are many kinds of color steel plates, which can be divided into several types according to the structure at room temperature:
1. Austenite type: such as 304, 321, 316, 310, etc;
2. Martensite or ferrite type: such as 4
30, 420, 410, etc;
Austenite is nonmagnetic or weakly magnetic, while martensite or ferrite is magnetic.
通常用作裝飾管板的 彩鋼板多數是奧氏體（Austenite）型的 304材質，一般來講是無磁或弱磁的 ，但因冶煉造成化學成分波動或加工狀態不同也可能出現磁性，但這不能認為是冒牌或不合格，這是什么原因呢？
Most of the color steel plates used as decorative tube sheets are austenitite Type 304 materials, which are generally non-magnetic or weak magnetic. However, due to the fluctuation of chemical composition or different processing conditions caused by smelting, magnetism may also occur, but this cannot be considered as fake or unqualified. What is the reason?
上面提到奧氏體是無磁或弱磁性，而馬氏體或鐵素體是帶磁性的 ，由于冶煉(smelting)時成分偏析或熱處理(chǔ lǐ)不當，會造成奧氏體彩鋼板中少量馬氏體或鐵素體組織。這樣，彩鋼板中就會帶有微弱的 磁性。
As mentioned above, austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Due to improper composition segregation or heat treatment (CH ǔ L ǐ) during smelting, a small amount of martensite or ferrite structure in austenitic color steel plate will be produced. In this way, there will be weak magnetism in the color steel plate.
另外，彩鋼板經過冷加工，組織結構(Organizational Structure)也會向馬氏體轉化，冷加工變形度越大，馬氏體轉化越多，鋼的 磁性也越大。如同一批號的 鋼帶，生產Φ76管，無明顯磁感，生產Φ9。5管。因泠彎變形較大磁感就明顯一些，生產方矩形管因變形量比圓管大，特別是折角部分，變形更激烈磁性更明顯。
In addition, after cold working, the organizational structure of the color steel plate will also transform to martensite. The larger the cold working deformation, the more martensite transformation, the greater the magnetic properties of the steel. For the same batch of steel strip, Φ 76 pipe is produced, without obvious magnetic induction, Φ 9 is produced. 5 tubes. Because of the large bending deformation, the magnetic induction is more obvious. Because of the larger deformation, especially the angle part, the production square rectangular tube has more intense deformation and more obvious magnetism.
要想完全消除上述原因造成的 304鋼的 磁性，可通過高溫固溶處理開恢復穩定（解釋:穩固安定；沒有變動)奧氏體組織，從而消去磁性。潔凈門板是將一種有機涂層涂敷于鋼材表面，它具有外表美觀、色彩艷麗、強度高、耐蝕性好、加工成型方便等優點，而且還可以使用戶降低成本、減少污染。
In order to completely eliminate the magnetism of 304 steel caused by the above reasons, the austenite structure can be recovered and stabilized (explanation: stable and stable; no change) by high temperature solution treatment, so as to eliminate the magnetism. Clean door panel is a kind of organic coating applied on the steel surface, which has the advantages of beautiful appearance, bright color, high strength, good corrosion resistance, convenient processing and molding, and can also help users reduce costs and reduce pollution.
特別要提出的 是，因上面原因造成的 彩鋼板的 磁性，與其他材料品質的 彩鋼板，如430、碳鋼的 磁性完全不是同一級別的 ，也就是說304鋼的 磁性始終顯示的 是弱磁性。
In particular, the magnetism of color steel plate caused by the above reasons is not the same level as that of color steel plate of other material quality, such as 430 and carbon steel, that is to say, the magnetism of 304 steel always shows weak magnetism.
This tells us that if the color steel plate has weak magnetism or no magnetism at all, it should be judged as 304 or 316 material quality; if it has the same magnetism as carbon (c) steel, it shows strong magnetism, because it is not 304 material.