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mill liner

AGICO Cement provides wear-resistant mill liner for various types of ball mills, such as groove lining boards, trapezoidal lining boards, ring groove lining boards, corrugated lining boards, silo boards, grate plates and other ball mill lining boards, and can also manufacture products of different materials according to the drawings provided by customers.
Mill liner is generally divided into five categories according to its use parts: cylinder lining plate, grinding head lining plate, silo plate, grate plate, manhole lining plate and special lining plate. Among them, the shape of ball mill barrel lining board is not simple plate, Angle spiral, round corner square lining board, groove lining board, trapezoidal lining board, its forms and shapes are numerous.

High manganese mill liner

Material: Mn13, Mn13Cr2, Chromium alloy steel, rare earth wear-resisting steel
Process: lost mold
Applicable machinery: ball mill, vertical mill, mill, mill, crusher
Performance advantages:
1.Using modified high manganese steel and super high manganese steel, has enough impact toughness.
2. Optimize the heat treatment process, high hardness, strong wear resistance, long service life.
3. Large crushing ratio and high crushing efficiency.
4. Cost-effective, easy to disassemble.

High manganese ball mill liner is used to protect the inner wall of crushing equipment, so that it is protected from the material or other objects into the inner cavity of the direct impact and friction, and can use different forms of high manganese ball mill liner to adjust the movement of the material, in order to strengthen the crushing effect of equipment on the material, improve the efficiency of equipment, increase output. In the operation of the equipment, the ball mill liner needs to withstand the impact, impact and friction of large materials, and wear is relatively fast, so the ball mill liner is required to have certain wear resistance and high impact resistance. While high manganese steel is easy to produce work hardening under high impact force, especially in some high impact conditions, the surface hardening thickness of high manganese steel can reach 10-20mm, and the hardening layer of high hardness can resist impact abrasive wear. Under strong impact conditions, the anti-wear performance is outstanding. And the high manganese ball mill liner produced by AGICO Cement is treated with water toughness, which further enhances its wear resistance and impact resistance.

Chemical element

Name	Spec Available%
Name	C	Si	Mn	Cr	Mo	Cu	P	S
High manganese ball mill liner	0.9-1.5	0.3-1.0	11-22	0-2.5	0-0.5	≤0.05	≤0.06	≤0.06

Mechanical properties and microstructure

Name	Surface(HB)	AK(J/cm²)	Microstructure
High manganese ball mill liner	≤240	≥100	A+C
C - \| Carbide Carbide residual Austenite \| A - Austenite

Specification

Size

Hole Dia.(mm)

Liner Length(mm)

≤40

≥40

≤250

≥250

Tolerance

High chromium alloy liner

Chromium cast iron is divided into high chromium cast iron (chromium content 8-26%, carbon content 2.0-3.6%), medium chromium cast iron (chromium content 4-6%, carbon content 2.0-3.2%), low chromium cast iron (chromium content 1-3%, carbon content 2.1-3.6%). It is characterized by the microhardness of M7C3 eutectic carbide HV1300-1800, which is distributed in the martensite (the hardest structure in the metal matrix) in a broken network and isolated form, thus reducing the effect of fragmentation on the matrix. Therefore, high chromium alloy liner has high strength, ball mill strength and toughness and high wear resistance, and its performance represents the highest level of metal wear resistant materials at present.

Chemical element

Name	Spec Available%
Name	C	Si	Mn	Cr	Mo	Cu	P	S
High Chrome Alloyed Liner	2.0-.36	0-1.0	0-2.0	8-26	≤3.0	≤1.2	≤0.06	≤0.06
Middle Chrome Alloyed Liner	2.0-.33	0-1.2	0-2.0	4-8	≤3.0	≤1.2	≤0.06	≤0.06
Low Chrome Alloyed	2.1-3.6	0-1.5	0-2.0	1-3	0-1.0	≤1.2	≤0.06	≤0.06

Mechanical properties and microstructure

Name	Surface(HRC) AK(J/cm²)	Microstructure
High Chrome Alloyed Liner	≥58	≥3.5	M+C+A
Middle Chrome Alloyed Liner	≥48	≥10	M+C
Low Chrome Alloyed	≥45	≥15	M+C+P
M-Martensite, C-Carbide, A-Austenite, P-Pearlite

Specification

Size

Hole Dia.(mm)

Liner Length(mm)

≤40

≥40

≤250

≥250

Tolerance

SAG mill liner

SAG mill liner is generally divided into medium-carbon chromium-molybdenum alloy lining plate (a cast steel with chromium content of 4-6% and carbon content of 0.4-0.8%) and medium-carbon low-chromium-molybdenum alloy lining plate (a cast steel with chromium content of 1.2-2.5% and carbon content of 0.3-0.6%). It is characterized by adopting multiple alloy design, increasing the content of carbides in the microstructure of medium carbon high alloy steel by appropriately increasing medium strength carbides forming elements such as Cr and Mo, so as to improve the heat resistance and wear resistance of the product. Medium carbon medium chromium alloy liner has high strength, toughness and wear resistance, which represents the higher level of metal wear resistance materials at present.

Chemical element

Name	Spec Available%
Name	C	Si	Mn	Cr	Mo	Cu	P	S
Medium Cr-Mo Alloyed Liner ZG45Cr5MoRe	0.4-0.8	≤1.2	0.6-1.5	4-6	0.3-1	0.3-0.8	≤0.04	≤0.06
Low Cr-Mo Alloyed Liner ZG40CrMoRe	0.3-0.6	≤1.2	0.5-1.2	1.2-2.5	0.3-1	0.3-0.8	≤0.04	≤0.06

Mechanical properties and microstructure

Name	Surface(HRC)	AK(J/cm²)	Microstructure
Medium Cr-Mo Alloyed Liner ZG45Cr5MoRe	≥48	≥20	M+C+A
Low Cr-Mo Alloyed Liner ZG40CrMoRe	≥40	≥30	M+C
M-Martensite, C-Carbide, A-Austenite, P-Pearlite

Specification

Size

Hole Dia.(mm)

Liner Length(mm)

≤40

≥40

≤250

≥250

Tolerance