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Abrasion-resistant lining plate for cone crusher

A technology of cone crusher and wear-resistant liner, which is applied in the field of crusher liner, can solve the problems of low hardenability and hardenability, high content of alloy elements, easy deformation and cracking, etc., and achieve improved toughness, good toughness, The effect of improving toughness

Inactive Publication Date: 2016-02-10
ANHUI SANFANG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the several materials mentioned above, high manganese steel is widely used, but it is mostly limited to the case of large impact, high stress and hard abrasive, and its yield strength is low and easy to deform.
Low and medium alloy wear-resistant steel is developed based on silicon and manganese, adding chromium, molybdenum, nickel and other trace elements. It has good strength and toughness, and its wear resistance under low and medium impact loads is better than that of high Manganese steel, but it has the disadvantages of low hardenability and hardenability, and poor wear resistance
Chromium cast iron has excellent wear resistance, but high content of alloying elements, high production cost and high temperature heat treatment is easy to deform and crack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A wear-resistant liner for a cone crusher, the percentage composition of each alloy element of the liner is as follows: C2.30%, Cr24.0%, Si1.32%, Mn0.23%, B0.17%, V0.40 %, N0.15%, W0.26%, Cu0.54%, Ce0.06%, Al0.15%, Co0.12%, Ti0.22%, S≤0.03%, P≤0.03%, the balance is Fe.

[0017] A method for preparing a wear-resistant liner for a cone crusher, comprising the following steps:

[0018] 1) Put the raw materials containing C, Cr, Si, Mn, B, V, N, W, Cu, Ce, Al, Co, Ti, Fe into an intermediate frequency electric furnace for melting, the melting temperature is 1670-1740°C, and The smelted molten steel is cast in the mold at a casting temperature of 1530-1560°C;

[0019] 2) Remove the mold, immerse the liner casting in the isothermal quenching oil immediately, the temperature of the isothermal quenching oil is 80-130°C, the holding time is 8-15min, and the surface temperature of the liner casting after isothermal quenching is 250-300°C , and then temper the oil-quenched line...

Embodiment 2

[0021] A wear-resistant liner for a cone crusher, the percentage composition of each alloy element of the liner is as follows: C2.4%, Cr23.0%, Si1.55%, Mn0.18%, B0.24%, V0.32 %, N0.21%, W0.18%, Cu0.68%, Ce0.05%, Al0.18%, Co0.10%, Ti0.27%, S≤0.03%, P≤0.03%, the balance is Fe.

[0022] A method for preparing a wear-resistant liner for a cone crusher, comprising the following steps:

[0023] 1) Put the raw materials containing C, Cr, Si, Mn, B, V, N, W, Cu, Ce, Al, Co, Ti, Fe into an intermediate frequency electric furnace for melting, the melting temperature is 1670-1740°C, and The smelted molten steel is cast in the mold at a casting temperature of 1530-1560°C;

[0024] 2) Remove the mold, immerse the liner casting in the isothermal quenching oil immediately, the temperature of the isothermal quenching oil is 80-130°C, the holding time is 8-15min, and the surface temperature of the liner casting after isothermal quenching is 250-300°C , and then temper the oil-quenched liner...

Embodiment 3

[0026] A wear-resistant liner for a cone crusher, the percentage composition of each alloy element of the liner is as follows: C2.80%, Cr22.0%, Si1.85%, Mn0.15%, B0.32%, V0.25 %, N0.28%, W0.15%, Cu0.82%, Ce0.02%, Al0.22%, Co0.07%, Ti0.35%, S≤0.03%, P≤0.03%, the balance is Fe.

[0027] A method for preparing a wear-resistant liner for a cone crusher, comprising the following steps:

[0028] 1) Put the raw materials containing C, Cr, Si, Mn, B, V, N, W, Cu, Ce, Al, Co, Ti, Fe into an intermediate frequency electric furnace for melting, the melting temperature is 1670-1740°C, and The smelted molten steel is cast in the mold at a casting temperature of 1530-1560°C;

[0029] 2) Remove the mold, immerse the liner casting in the isothermal quenching oil immediately, the temperature of the isothermal quenching oil is 80-130°C, the holding time is 8-15min, and the surface temperature of the liner casting after isothermal quenching is 250-300°C , and then temper the oil-quenched line...

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PUM

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Abstract

The invention discloses an abrasion-resistant lining plate for a cone crusher and relates to the technical field of crusher lining plates. Alloy elements in the lining plate include 2.30-2.80% of C, 22.0-24.0% of Cr, 1.32-1.85% of Si, 0.15-0.23% of Mn, 0.17-0.32% of B, 0.25-0.40% of V, 0.15-0.28% of N, 0.15-0.26% of W, 0.54-0.82% of Cu, 0.02-0.06% of Ce, 0.15-0.22% of Al, 0.07-0.12% of Co, 0.22-0.35% of Ti and the balance Fe and unavoidable impurities. The ratio of the optimized elements is more reasonable and all the elements achieve the synergistic effect, so that the lining plate is high in hardness, good in tenacity and resistant to impact and abrasion; the service life of the lining plate is two to three times longer than that of a common steel abrasion-resistant material; the lining plate meets the work demands of medium and large cone crushers; besides, the raw material sources are rich, precious metal such as Mo and Ni are not contained, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of crusher liners, in particular to a wear-resistant liner for a cone crusher. Background technique [0002] Cone crusher is a material crushing machine, mainly used for crushing ores and rocks with medium or higher hardness, and widely used in crushing raw materials in metallurgy, construction, road construction, chemical and silicate industries. Compared with other crushing machines, cone crusher crushing has the advantages of high crushing efficiency, low energy consumption, and uniform product particle size. The lining plate of the cone crusher is the mortar wall and the crushing wall. It is the main component of the cone crusher and has the functions of lifting the grinding medium, grinding the ore, and protecting the grinding cylinder. Due to frequent strong impacts during use, its liner is prone to serious wear, which will lead to problems such as uneven product particle size, decreased production ef...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C33/08C21D1/20
Inventor 仰明李和成
Owner ANHUI SANFANG NEW MATERIAL TECH CO LTD
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