Non-metallic Mineral Deposit

Customized cemented carbide shield cutter for tunnel boring machine
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Description:
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A?tunnel?boring?machine?(TBM)?is?a?machine?used?to?excavate?tunnels?with?a?circular?cross?section?
through a?variety?of?soil?and?rock?strata.??There?have?a?very?big?circle?blade?in?the?front?of?tunnel?
boring?machine?equipped?with?various?kinds?of?cutters,?in?order?to?promote?stable?and?longer?lasting
?life?of?application,?we?have?research?and?developed?special?tungsten?carbide?materials?suited?to?
your?application.The?TBM?technology?is?mainly?used?in?underground?ming?and?traffic?tunnelling
?like?metro,?railway?and?road?tunneling.
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Grade?and?Applications:
Other?grades?may?be?offered?by?customers& acute;?requirements

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Grade | Density | T.R.S | Hardness | ?Performance?&?application?recommended |

g/cm3 | MPα | HRA |
MK4 | 15.1 | 1800 | 90 | Mainly?used?as?small?buttons?for?percussion?bits?to?cut?soft?and |
medium?hard?formations. |
MK6 | 14.9 | 2000 | 90.5 | For?coring?crowns,?electric?coal?drill?bits,?coal?cutting?picks,?oil |
cone?bits?and?scraping?knife?bits,?usd?in?geological?prospecting, |
?coal?mining?and?oil?well?boring. |
MK8 | 14.7 | 2400 | 89.7 | For?coring?crowns,?electric?coal?drill?bits,?coal?cutting?picks,?cone |
drill?bits?and?scraping?knife?bits,?used?in?geological?prospecting, |
coal?mining?and?oil?well?boring. |
MK10 | 14.7 | 2450 | 88.5 | Mostly?used?as?the?buttons?of?small?and?mediumsized?percussion |
?bits?and?as?the?inserts?of?rotary?prospecting?bits?to?cut?soft?and |
?medium?hard?formations. |
MK15 | 14.6 | 2450 | 87.8 | Suitable?to?strips,?conical?buttons?for?rotary?percussion-resistant, |
geological?prospecting?buttons,?cut?soft?and?medium?hard
formations. |
MK20 | 14.4 | 2550 | 87 | Primarily?for?the?buttons?and?inserts?of?rotary?percussion?bits
?to?cut |
medium-hard?and?hard?formations. |
MK25 | 14.5 | 2600 | 87.5 | Primarily?for?the?buttons?and?inserts?of?rotary?percussion?bits
?to?cut |
medium?hard?and?very?hard?formations. |
MK30 | 14.4 | 2600 | 87 | Largely?for?the?inserts?and?buttons?of?percussion?bits?and?tricone |
bits?to?cut?medium-hard,?hard,?and?very?hard?formations. |
MK40 | 14.2 | 2650 | 86.5 | Predominatly?for?the?buttons?of?tricone?bits?and?inserts?of?rotary |
percussion?bits?to?cut?hard?and?vey?hard?formations. |
MK50 | 14 | 2700 | 86 | For?oil?cone?drill?bits,?for?medium?soft?and?medium?-hard?rocks. |
MK60 | 14 | 2500 | 87 | Good?strength?and?less?wear?resistance,?for?bits?of?rotary
hammer |
?rock?drills?and?heavy?rock?drills,?for?hard?and?very?hard?rocks. |
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Competitive?Advantage:
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1.?Expertise?in?tungsten?carbide?for?15?years,?we?can?assit?you?in?choosing?the?optimum?grade?for?your?job.
2.?We?produce?only?with?advanced?tungsten?carbide?material?to?ensure?high?level?of?quality
3. You& acute;re?guarranteed?to?find?the?right?one?for?your?application?with?various?grade?and?types?available
4. All?our?product?are?in-house?made?under?strict?quality?controlled?conditions.

1.?All?raw?materials?are?tested?in?terms?of?density,?hardness?and?T.R.S?before?use.
2.?Every?piece?of?product?goes?through?in-process?and?final?inspection.
3.?Every?batch?of?product?can?be?traced.
4.?100%?of?our?products?pass?final?inspection?before?being?put?on?the?market.
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