Chrome Molybdenum Alloy Liner

0086-371-86581139

Type:ZG

Capacity:

Raw materials:

Delivery:15-30days

Application:ball mill

Introduction:The notable feature of chrome molybdenum alloy liner is that adopts the multi-alloy design to properly increase the elements forming by medium-strength carbide, such as Chrome and Molybdenum, to increase the carbide content in medium-carbide alloy steel structure.

Thus, the chrome molybdenum alloy liner obtains the performances of high strength, high toughness and high wear-resistance, and at present it represents the higher level of metal wear-resistant materials.

Manufacturing technique

The high quality scrap steel, chrome alloy and other alloy materials are smelted by the medium-frequency electric furnace, then through mirco-alloying treatment, tempering, and finally casting by steel moulds. It adopts the constant temperature casting process to ensure that products without sand, porosity, depression and other quality defects.

The heat treatment adopts oil quenching process. The quenching and tempering can change the internal structure of the ball to reduce the inner stress, control the broken rate, and enhance the performance after quenching.

We adopt the advanced spectrum detection during the processes of before smelting, after smelting, semi-finished product and finished product to ensure that the chemical composition reach the standard and the performance is stable.

Cautions

(1) It is strictly forbidden that the mill is no-load running. The mill no-load running will cause the grinding body to impact on the cylinder, and serious damage to the service life of the liner and increasing abrasive wear of the grinding body.

(2) Clean the inner of cylinder before installing the liners.

(3) Tighten the liner screws and pad the seal gaskets, in order to prevent the leakage of pulp.

(4) Before installing the liner, the liner should be inspected and trimmed to ensure the liner’s back and around are smooth. The bolt hole should be clear sand and casting flash, so that the bolt can penetrate smoothly. Its back and around, as appropriate, could be trimmed by the grinding wheel until meet the installation requirements.

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Parameters

Medium-Chrome Medium-Molybdenum Alloy Liner for Ball Mill Chemical Composition

Name Medium-Chrome Medium-Molybdenum Alloy Liner
ZG45Cr5MoRe
Chemical Composition(%) C 0.4-0.6
Si ≤1.2
Mn 1-1.5
Cr 4-6
Mo 0.2-1
Cu 0.5-0.8
P 0.058
S 0.052

Mechanical Property and Metallographic Structure

Name Surface hardness(HRC) Impact value(J/cm2) Metallographic Structure
Medium-Chrome Medium-Molybdenum Alloy Liner
ZG45Cr5MoRe
≥48 ≥20 M+C
M- martensite       C-carbide

Specification

Size Hole diameter(mm) Liner length mm)
≤40 ≥40 ≤250 ≥250
Tolerance +2 +2 +3

Medium-Chrome Low-Molybdenum Alloy Liner for Ball Mill Chemical Composition

Name Medium-Chrome Low-Molybdenum Alloy Liner
ZG40CrMoRe
Chemical Composition(%) C 0.3-0.6
Si ≤1.2
Mn 0.5-1.0
Cr 1.2-2.5
Mo 0.2-0.6
Ni 0.1-0.4
P 0.058
S 0.052

Mechanical Property and Metallographic Structure

Name Surface hardness(HRC) Impact value(J/cm2) Metallographic Structure
Medium-Chrome Low-Molybdenum Alloy Liner
ZG40CrMoRe
≥40 ≥30 M+C
M- martensite       C-carbide

Specification

Size Hole diameter(mm) Liner length mm)
≤40 ≥40 ≤250 ≥250
Tolerance +2 +2 +3

Message

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