Corrosion and Abrasion Resisting Cr Chrome Alloy Slurry Pump Spare Parts
1. APPLICATION OF THE PUMP PARTS:
The Chrome alloy long service life centrifugal casting slurry water pump partadapt to pumps, which are widely used in transport water or slurry with strong corrosive proof and high concentration for many industries such as metallurgy, mine, coal, electric power, building materials and other industry.
2. MATERIAL OF SLURRY PUMP PARTS:
Rubber: Natural Rubber, Nitrile Rubber, Polychloroprene
Metal: (High) Chromium Alloy,Nodular Case Iron, Ductile Gray Iron, and Stainless Steel(ss314.ss316)
Materials
|
Type |
Code |
Mark |
Mechanism Performance |
Special Performance |
Application |
||
|
δw/δb MPa |
αk J/cm2 |
HRC |
|||||
|
Anti-wear white iron |
A05 |
KmTBCr27 |
≥700 |
6-10 |
≥56 |
Erode resistance is a little bit lower than A07 with certain corrosive resistance |
Used for higher wear condition with PH between 5 and 12 |
|
A07 |
KmTBCr15Mo |
≥550 |
4-8 |
≥59 |
Best erode resistance but lower wear resistance than A05 |
Used for higher wear condition |
|
|
A01 |
KmTBCr8 |
≥550 |
6-8 |
≥55 |
The erode resistance is about 0.9 times of A05. |
Used for mud pump |
|
|
A11 |
KmTBMnMo |
≥400 |
3-6 |
38-42 |
Lighter erode resistance and lower hardness. It can be perforated and tapped. |
Used for light wear condition with fine grain. |
|
|
Anti- wear &anti-corrosive iron |
A49 |
-- |
≥600 |
-- |
43 |
It has certain erode and corrosive resistance in low PH condition. Its wear resistance is nearly equal to A03 |
For lower PH condition,especially for flue gas. For low sour condition desulphuration installation (PH≥4) |
|
A33 |
-- |
-- |
-- |
35 |
It has certain erode and corrosive resistance that is similar to A03 and certain corrosive resistance. |
It can transport oxygenated slurry with PH not be less than 1. |
|
|
Anti-wear cast steel |
A22 |
-- |
1200 |
-- |
45 |
Fine anti-erode & anti-corrosive, high hardness. |
Used for dredge pump casing. |
|
A23 |
-- |
700 |
-- |
HB500-600 |
Higher hardness and anti-erode. |
Used for anti-wear &corrosive and high erode condition. |
|
|
A25 |
-- |
-- |
-- |
HB300-350 |
Lower hardness, better anti-wear & anti-corrosive and weldable. |
Used for light erode and wear condition. |
|
1. Pump Casing
Split outer casing design with cast or ductile iron with the wearing liners , which can provide high operating pressure capabilities.
2. Impeller
The impeller may be either molded elastomer or hard metal. Cast-iron impeller threads are better suited for slurries.
3. Interchangeable Hard Metal and Moulded Elastomer Liners
4.Mating faces in hard metal liners are tapered to allow positive alignment during assembly and allow components to be easily removed or replacement.
5. Impeller The impeller may be either molded elastomer or hard metal. Cast-iron impeller threads are better suited for slurries.
6. Hydraulic seal rings give positive sealing between mating faces.
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