What kinds of commonly used cast iron rolls are there?
Cast iron rolls are further divided into four categories: chilled cast iron rolls, infinite chilled cast iron rolls, ductile iron rolls and high chromium cast iron rolls.
Due to the difference in composition, inoculation, cooling rate, heat treatment, etc., cast iron has formed a huge system. Various cast iron rolls have different structures and properties and can be used in different rolling mills.
Alloy chilled cast iron roll
Alloy chilled cast iron roll (roll ring) is a cast iron roll manufactured by using the subcooling degree of molten iron itself and the cooling of the mold surface, and adding Ni, Cr, Mo alloy elements at the same time. The basic structure of the working layer of the roll body is basically There is no free graphite, so it has high hardness and excellent wear resistance.
This kind of material can be used to produce large-scale rolls by static composite casting process, so that the roll body has high hardness and the roll neck has high strength and toughness, showing good thermal stability and accident resistance.
| सामग्री | C | Si | Mn | Cr | Ni | Mo | V | |
| CC-1 | Chilled cast iron | 2.9-3.8 | 0.4-1.0 | 0.2-1.0 | 0.2-0.6 | 0.2-0.6 | – | |
| CC-2 | Chilled cast iron | 2.9-3.8 | 0.4-1.0 | 0.2-1.0 | 0.2-0.6 | 0.5-1.0 | 0.2-0.6 | – |
| CC-3 | Chilled cast iron | 2.9-3.8 | 0.4-1.0 | 0.2-1.0 | 0.2-0.6 | 1.0-3.0 | 0.2-0.6 | – |
| CC-4 | Chilled cast iron | 2.9-3.8 | 0.4-1.0 | 0.2-1.0 | 0.2-0.6 | 0.2-0.8 | （0.1-0.3） |
Alloy Unbounded Chilled Cast Iron Rolls
Alloy unbounded chilled cast iron rolls. Graphite is uniformly dispersed throughout the cross section of the roll body, and its number and size increase with depth. The alloy unbounded chilled cast iron rolls provided by our company are due to the addition of manganese, chromium, nickel, molybdenum and other alloying elements, plus the presence of a small amount of fine graphite. It not only the peeling resistance, thermal crack resistance and wear resistance of the roll are improved, but also the working layer of the roll body has a smaller hardness drop and the fine graphite pores on the surface also improve the bite ability of the roll.
High nickel-chromium unbounded chilled cast iron rolled spokes
High-nickel-chromium unbounded chilled composite cast iron rolls are high-performance rolls manufactured by centrifugal or full flushing methods. By increasing the content of nickel, chromium, molybdenum and other alloying elements, high microhardness of microstructure and carbide can be obtained; with special heat treatment, a working layer with uniform structure, compactness and small hardness drop can be obtained; at the same time, it contains a small amount of free graphite, so it has good microhardness. Abrasion resistance, thermal cracking resistance, spalling resistance and indentation resistance.
Professional manufacturer of chilled cast iron rolls
2007 में शुरू हुआ LMM ग्रुप मुख्य रूप से अलग-अलग तरह के स्टील, बार, हाई-स्पीड वायर और स्ट्रिप हॉट एंड कोल्ड प्लेट और स्ट्रिप रोलिंग मिलों के लिए सभी तरह के मेटलर्जिकल रोल बनाता है।
कंपनी 100,000 स्क्वायर मीटर के एरिया में फैली हुई है, जिसमें कास्ट रोल और फोर्ज्ड स्टील रोल के लिए दो पूरी प्रोडक्शन लाइनें, प्रोसेसिंग वर्कशॉप, प्रोडक्ट रिसर्च और डेवलपमेंट सेंटर, टेस्टिंग सेंटर, ट्रेनिंग सेंटर और ऑफिस बिल्डिंग और दूसरी सपोर्टिंग फैसिलिटी शामिल हैं। फैक्ट्री का माहौल बहुत सुंदर है।
LMM की सप्लाई दुनिया के टॉप स्टील मैन्युफैक्चरर आर्सेलरमित्तल, टाटा स्टील, EZZ स्टील वगैरह को की गई है। हम लंबे समय से कॉनकास्ट और डेनियली के लिए OEM करते हैं।
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