Novel anti-attrition and wear resistant cast iron and preparation method thereof

A wear-resistant cast iron, a new type of technology, applied in the field of alloy cast iron, can solve the problems of poor anti-friction lubrication effect, can not meet the requirements of anti-friction, etc., achieve the effect of improving anti-friction and anti-wear performance, and simple preparation method

Inactive Publication Date: 2019-01-11
TIANJIN LILIN BIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some existing anti-friction materials have poor anti-friction lubrication effect and cannot meet the anti-friction requirements

Method used

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  • Novel anti-attrition and wear resistant cast iron and preparation method thereof
  • Novel anti-attrition and wear resistant cast iron and preparation method thereof
  • Novel anti-attrition and wear resistant cast iron and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: A kind of method for preparing antifriction, wear-resisting cast iron of this example, comprises the following several steps:

[0021] 1) Ingredients: return materials, steel scrap, pig iron, ferrosilicon, ferromanganese, ferrochrome, ferrovanadium, pure copper, ferrotitanium, ferrophosphorus according to C2.8%, Si 1.8%, Mn 0.5%, P 0.3%, Cr 1.2%, Ni 0.4%, Mo 0.1%, V 0.2%, Cu 0.5%, Ti 0.1%, S≤0.08%, and the balance is the weight percentage of Fe;

[0022] 2) Preheating, preheating the calculated scrap steel, pig iron, and returned materials in the intermediate frequency induction melting furnace in sequence;

[0023] 3) Melting: After melting the scrap steel, pig iron and returned materials in the intermediate frequency induction melting furnace, put in the calculated recarburizer, after the recarburizer is melted, add the deoxidizer for the first deoxidation, and then add the calculated quality For pure copper, when the temperature rises to 1460°C, add ba...

Embodiment 2

[0029] A kind of method for preparing antifriction, wear-resisting cast iron of this example comprises the following steps:

[0030] 1) Ingredients: Return materials, steel scrap, pig iron, ferrosilicon, ferromanganese, ferrochrome, ferrovanadium, pure copper, ferrotitanium, ferrophosphorus according to C3.5%, Si 2.7%, Mn 1.8%, P 0.7%, Cr 2.8%, Ni 0.6%, Mo 0.8%, V 1.6%, Cu 1.8%, Ti0.3%, S≤0.08%, and the balance is the weight percentage of Fe;

[0031] 2) Preheating, preheating the calculated scrap steel, pig iron, and returned materials in the intermediate frequency induction melting furnace in sequence;

[0032] 3) Melting: After melting the scrap steel, pig iron and returned materials in the intermediate frequency induction melting furnace, put in the calculated recarburizer, after the recarburizer is melted, add the deoxidizer for the first deoxidation, and then add the calculated quality For pure copper, when the temperature rises to 1380°C, add baked ferromanganese and f...

Embodiment 3

[0038] A kind of method for preparing antifriction, wear-resisting cast iron of this example comprises the following steps:

[0039] 1) Ingredients: Return materials, steel scrap, pig iron, ferrosilicon, ferromanganese, ferrochrome, ferrovanadium, pure copper, ferrotitanium, ferrophosphorus according to C3.2%, Si 2.2%, Mn 0.9%, P 0.4%, Cr 2.0%, Ni 1.3%, Mo 0.4%, V 0.9%, Cu 0.9%, Ti 0.4%, S≤0.08%, and the balance is the weight percentage of Fe;

[0040] 2) The second step: preheating, preheating the calculated scrap steel, pig iron, and returned materials in the intermediate frequency induction melting furnace in sequence;

[0041] 3) The third step: smelting: After melting the scrap steel, pig iron and returned materials in the intermediate frequency induction melting furnace, put in the calculated recarburizer, after the recarburizer melts, add a deoxidizer for the first deoxidation, and then add Calculate the quality of pure copper, and when the temperature rises to 1400°C,...

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Abstract

The invention relates to the technical field of cast alloy iron, in particular to novel anti-attrition and wear resistant cast iron and a preparation method thereof. The novel anti-attrition and wearresistant cast iron is prepared from the following components in percent by mass: 2.8-3.8% of C, 1.8-3.0% of Si, 0.5-2.0% of Mn, 0.3-0.8% of P, 1.2-3.0% of Cr, 0.4-2.0% of Ni, 0.1-1.0% of Mo, 0.2-2.0%of V, 0.5-3.0% of Cu, 0.1-0.5% of Ti, less than or equal to 0.08% of S and the balance Fe. Based on common cast iron components, various alloy elements are added, so that the tissues of the cast ironcontain fine ledeburite eutectic alloys. By adding phosphorus, binary and ternary phosphorus eutectic tissues exist. The eutectic tissues form grid frameworks in the cast iron and the frames are distributed in a pearlite matrix to play an anti-attribution role. Fine flake graphite in the grids can form oil storage holes, thereby playing the anti-wear role.

Description

technical field [0001] The invention relates to the technical field of alloy cast iron, in particular to a novel wear-reducing and wear-resistant cast iron and a preparation method thereof. Background technique [0002] At present, friction and wear are the main reasons for the damage of materials and the scrapping of mechanical equipment. Lubrication technology is an effective means to reduce friction and wear. An important means of lubrication technology is to use lubricants. Lubricants can be divided into liquid lubricants and solid lubricants, which are attached or coated on the surface of the friction pair to form a lubricating transfer film on the friction surface through the friction and wear process to improve the contact between the friction pair condition, thereby effectively reducing wear and tear. Some existing anti-friction materials have poor anti-friction lubrication effects and cannot meet the anti-friction requirements. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C37/08C22C33/08C21C7/06
CPCC21C7/06C22C33/08C22C37/08C22C37/10Y02P10/20
Inventor 马文旭白文巨张兆军李英
Owner TIANJIN LILIN BIT
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