Crusher Wear Parts Ceramic blow bar Ceramic hammers Mantle&Concave Jaw Plate Phone: 008615851989372 Email: sales@bogvik.com

1. Mantle and Liner

3. Metso HP series
HP100 BOWL LINER code 55208002 HP100 MANTLE code 55308121

4. Metso HP series
HP200 Bowl Liner code N55208139 HP200 Mantle code N55308011

5. Metso HP series
HP300 Mantle code 5520-8283 HP300 BOWL LINER code 5530-8267

6. Metso HP series
HP400 BOWL LINER code 5520-8525 HP400 BOWL LINERcode 4832-0032

7. Metso HP series
HP500 BOWL LINER code 55208502 HP500 Mantle code 55308501

8. Five factors affecting the quality：
1.Chemical composition of materials
2.Smelting process
3.Casting process
4.Heat treatment process
5.Machining process

9. Precision of wood dies Sand mould
Make the mould

10. 1. Raw materials

11. 2. Smelting process

12. 4.Heat treatment process

13. 4-1. Furnace temperature and the heating speed
• Large, complex objects charging temperature
should be < < 400 ℃, the wall thickness of 50 mm
in the shape of a simple piece of charging
temperature can reach
• 600 ℃, the former can temperature is 50 ℃ / h,
the heating speed can be set at 80-100 ℃ / h.
• Heat up
• In 650-700 ℃ heat preservation for a period of
time, time is long myopic casting size and decide,
usually for 1 to 3 h.
• The bartender
• The temperature can remove the casting stress and
the metal from elastic state to plastic state.
• Allowed after entering the plastic state
• Fast heating, heating speed can be > 100 ℃ / h,
even as high as 150 ℃ / h.

14. 4-2. Generally melt temperature and heat preservation time
• For common high manganese
steel, melt temperature at 1050-
1100 ℃ has enough.
• Other alloyElements such as Cr,
Mo, V, Nb, Ti high manganese
steel, the melting temperature
of 30-50 ℃ higher than that of
common high manganese steel
that is, 1100-1150 ℃.
τ=0.016δ{1.27［w(C) +w(Si)］}

15. 4-3. Water toughening treatment
• The purpose of cooling is to keep the
austenitic body in high temperature.
• HighManganese steel cooling adopts
water quenching.
• According to precipitate phase
transition, 960 ℃ or have carbide
precipitation from austenite, for
ensure high manganese steel pieces in
the 960 ℃ above the water, into the
water from the open door to the high
manganese steel casting time less
than30 s.
• 30 s to make the casting temperature
70-90 ℃

16. 4-3. Water toughening treatment
• High manganese steel heat
treatment furnace is generally
designed as a turning - over - type
furnace.
• Open the door, pull out the car, and
get to the sink
• On the side, the trolley is turned
over and the castings are cast into
the water.
• The turning - type platform can
ensure that the water is cast into
the 30s.

17. 4-3. Water toughening treatment
• The water capacity of the pool is required to
handle 8-10 times the quality of the castings,
namely 50t furnace, water in the pool is 400-
500 - t. The sink is deep enough to ensure
that all the castings are immersed in water
and the pool is designed to circulate
• The cooling water can properly reduce the
pool volume, that is, the water is flowing out
at the bottom of the pool, with hot water
over the sink out of the device.
• To ensure that the lower the water
temperature to < 30 ℃, after processing
temperature < 60 ℃, to ensure the cooling
rate.
• High manganese steel cooling rate of castings
solid solution treatment to 30 ℃ / s.

19. What percentage of manganese oxide and iron oxide in slag?
Less than 3%
In the smelting process of high manganese steel, this data illustrates its quality！

20. Unprocessed product

21. Machining process

22. Spray paint

23. Test report