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Chromium manganese silicon vanadium abrasion-resistant cast iron

An anti-wear cast iron and chromium-manganese-silicon technology, which is applied in the field of chromium-manganese-silicon-vanadium anti-wear cast iron, can solve the problems of increased production cost, high price, decreased wear resistance, etc., and achieves reduced production cost, low production cost and service life. long effect

Inactive Publication Date: 2011-03-16
柳州桂滨铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since molybdenum is a scarce resource in our country, its price is high, which increases the production cost of chromium, molybdenum cast iron and chromium, molybdenum, copper cast iron
In order to reduce costs, some domestic manufacturers have reduced the chromium content of high-chromium cast iron to less than 13%, and the molybdenum content to less than 0.5%, so that the cost is reduced, but the wear resistance is also greatly reduced, and the service life is only equivalent to the original 1 / 3 to 1 / 2

Method used

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  • Chromium manganese silicon vanadium abrasion-resistant cast iron
  • Chromium manganese silicon vanadium abrasion-resistant cast iron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A chromium-manganese-silicon-vanadium anti-wear cast iron. The chemical composition of the chromium-manganese-silicon-vanadium anti-wear cast iron is calculated by weight percentage: C3.4%, Cr 20%, Mn 2.5%, Si 0.8%, V 0.8%, P 0.06 %, S 0.06%, the rest is Fe and unavoidable impurities.

[0031] The eddy current flaw detection pinch roller of the steel plant manufactured by the chromium-manganese-silicon-vanadium wear-resistant cast iron has a service life three times that of the Cr12MoV steel.

Embodiment 2

[0033] A chromium-manganese-silicon-vanadium anti-wear cast iron. The chemical composition of the chromium-manganese-silicon-vanadium anti-wear cast iron is calculated by weight percentage: C 2.7%, Cr 16%, Mn 2.2%, Si 0.5%, V 0.5%, P 0.09 %, S 0.06%, the rest is Fe and unavoidable impurities.

[0034] Crusher hammers made of this chromium-manganese-silicon-vanadium-resistant cast iron have crushed 82,000 tons of cement clinker in a cement plant, while crusher hammers made of chromium-15-molybdenum-3 high-chromium cast iron have broken cement clinker Only 65,000 tons.

Embodiment 3

[0036] A chromium-manganese-silicon-vanadium anti-wear cast iron. The chemical composition of the chromium-manganese-silicon-vanadium anti-wear cast iron is calculated by weight percentage: C3.6%, Cr 22%, Mn 3.0%, Si 1.0%, V 1.0%, P 0.04 %, S 0.04%, the rest is Fe and unavoidable impurities.

[0037] The slurry pump sheath, impeller, guard plate and other flow parts produced by this chromium-manganese-silicon-vanadium anti-wear cast iron have a service life of 960 hours in a concentrator. The service life of the sheath, impeller and guard plate made of chromium 15 molybdenum 3 type high chromium cast iron is only 624 hours.

[0038] The mechanical properties of the chromium-manganese-silicon-vanadium wear-resistant cast irons described in the first to third examples above are tested respectively, and their mechanical properties are shown in attached table 1.

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Abstract

The invention discloses chromium manganese silicon vanadium abrasion-resistant cast iron, which relates to a cast iron alloy. The chromium manganese silicon vanadium abrasion-resistant cast iron comprises the following chemical components in percentage by weight: 2.7-3.6% of C, 16-22% of Cr, 2.2-3.0% of Mn, 0.5-1.0% of Si, 0.5-1.0% of V, less than or equal to 0.10% of P, less than or equal to 0.06% of S, and the balance of Fe and inevitable impurities. The invention has the advantages of high hardness, sufficient toughness, superior abrasion resistance, low production cost, long service life, wide application and the like, and can be widely used for manufacturing various mechanical components working under low-stress grinding abrasion conditions.

Description

【Technical field】: [0001] The invention relates to a cast iron alloy, in particular to a chromium-manganese-silicon-vanadium wear-resistant cast iron belonging to high-chromium wear-resistant cast iron. 【Background technique】: [0002] At present, the most widely used high-chromium wear-resistant cast irons at home and abroad include chromium, molybdenum cast iron and chromium, molybdenum, copper cast iron. The main components of chromium and molybdenum cast iron are calculated by weight percentage: carbon 2.8-3.5%, chromium 13-18%, molybdenum 2.5-3.0%, and the rest is iron. The main components of chromium, molybdenum and copper cast iron are calculated by weight percentage: 2.0-3.0% carbon, 18-28% chromium, 1.5-2.5% molybdenum, 0.8-1.2% copper, and the rest is iron. Both of the above two types of high chromium wear-resistant cast irons contain molybdenum. Molybdenum is added to wear-resistant cast irons to improve their hardenability and further improve their wear resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10
Inventor 赵正江魏玉堂郭儒欢
Owner 柳州桂滨铸造有限公司