Что такое цементированный карбид для горнодобывающей промышленности?

Grade

Grain size

Bonded phase (%)

Hardness

Flexural strength(Mpa)

Density(g/cm3)

Coercive magnetism (ka/m)

Cobalt magnetism

Grain size(um)

Grade Description

DK05

Middle

6

90.2±0.3

≥3000

≥14.9

11.0-12.5

5.4-6.0

1.6-2.0

A versatile grade, suitable for most working conditions.

PDK10.8

Very Rough

6

88.5

≥2100

14.90-15.05

Good toughness and fatigue resistance, suitable for mining, tunneling and other cut-off and road-digging gears.

PDK20.1

Middle

8

89.5

≥2800

14.65-14.80

5.5-7.0

8.1-9.0

2.2-2.8

Good wear resistance, suitable for all sizes of percussion drills, down hole drills and triple tooth bits.

DK30.3

Middle

9

88.8

≥2800

14.55-14.70

Suitable for medium toughness requirements in mining, oil extraction operations, mainly for tooth wheel bits.

DK30.4

Rough

9

87.6±0.4

≥2800

14.55-14.70

Good toughness and fatigue resistance for mining and engineering tools.

DK35.1

Middle

10

88.3

≥2800

14.45-14.60

Suitable for mining and oil extraction operations with medium toughness requirements, mainly for dental wheel bits.

DK20

Rough

10

87.5

≥2800

14.40-14.60

Good toughness and fatigue resistance for mining cut-offs and triple tooth bits.

PDK35.5

Very Rough

10

86.6

≥2200

14.45-14.60

Good toughness and fatigue resistance for mining, tunneling cut-offs and shield bits.

DK40.1

Middle

11

88.0

≥2800

14.35-14.50

Suitable for medium toughness requirements in mining and oil extraction operations, mainly for tooth wheel bits.

DK40.2

Rough

11

86.8

≥2800

14.35-14.50

Good toughness and fatigue resistance for mining cut-offs and shield bits.

DK41.1

Middle

12

86.5

≥2800

14.25-14.40

Good toughness and fatigue resistance for mining cut-offs and shield bits.

DK42.2

Rough

13

86.5

≥2800

14.15-14.30

Good toughness and fatigue resistance for mining, tunnelling and shield heads.

DK42.3

Very Rough

13

86.0

≥2200

14.15-14.30

Good toughness and fatigue resistance for mining, tunnelling and shield heads.

DK45.2

Rough

15

85.6

≥2800

13.90-14.20

Good toughness and fatigue resistance for mining, tunnelling and shield heads.