cast iron rolls cast steel rolls cast rolls ring rolls repair

15
Mintek Abrasives & Tools Co.,Ltd Website: www.mintektools.com Add: Room 453,4TH Floor,East NO 62, Nongye Road, Jinshui District,Zhengzhou City, Henan Province, China. Tel: 0086-13783500893, 0086-15937195915 Email: [email protected] [email protected] 1

Upload: others

Post on 30-May-2022

25 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Mintek Abrasives & Tools Co.,LtdWebsite: www.mintektools.comAdd: Room 453,4TH Floor,East NO 62, Nongye Road, Jinshui District,Zhengzhou City, Henan Province, China.Tel: 0086-13783500893, 0086-15937195915Email: [email protected] [email protected] 1

Page 2: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Page 3: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

lCBN grade of Mintek Tools: MTN-60 MTN-20 MTN-90

Solid CBN inserts

lRoughing of RollslMachining of Roll RepairlTurning, Dry cutting

Page 4: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Rough turning Roll Excircle

Workpiece: RollMaterial: TC Roll(Tungsten Carbide Roll)Hardness: HSD90

Inserts: RNMN190700/RNMN120400 RCMX190700/RCMX250700Grade: MTN-60

Cutting parameter :Vc=50m/min, ap=12mm, f = 2mm/r

Our CBN inserts improve the cutting efficiency by 25% and increase the life by 100%.

Page 5: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Workpiece: RollMaterial: High nickel -chromium cast ironHardness: HSD78

Grades of Mintek Tools: MTN-20 MTN-60solid CBN inserts: RNMN190700

Cutting parameter : Vc=55m/min ap=2mm f =0.2mm/r

MinTek CBN inserts improve the efficiency by ¼ and increase the life by 1 time.

Page 6: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Workpiece: Surface Welding RollHardness: HSD75Grade: MTN-20 MTN-60 CBN inserts: SNMN201020K-land(Chamferring): S20020

Cutting parameter: ap=4mm, f = 0.6mm/r

Dry cutting mode.

Mintek CBN inserts improve the efficiency by 10 times and increase the life by 3 times compared with carbide inserts.

Page 7: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

About cutting parameters:

1, The cutting parameters are related to the characteristics of the CBN insert, the hardness, strength, and cutting characteristics of the workpiece material.

2, The cutting parameters are related to the machine tool's stability, power, chip-breaking ability, processing method, tool stress state and other factors.

3, The choice of feed rate is related to the tool's main declination angle (Kr), cutting depth, CBN inserts size, CBN inserts thickness, and its shape.

4, Selection of cutting depth. If its possible, choose the large cutting depth, but we should pay attention to balancing the load of the tool.

5, The choice of cutting speed is related to the shape of the workpiece, the organization of the workpiece, the path of the tool, the hardness and strength of the material, and the life of the designed tool.

The setting of cutting parameters is related to many factors such as machine tool rigidity, workpiece shape, workpiece material, tool structure, tool material, tool geometry angle, tool durability, etc. Choosing appropriate cutting parameters could give full play to the effectiveness of machine and tools.

Page 8: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Matters that should be paid attention to when using tools (not only focus on tools, but also focus on the entire cutting system)

1, Work pieceWork piece name, material, hardness, dimensional accuracy, surface quality requirements.2, Tool HolderTool holder rigidity, tool shim material, accurate positioning, reliable clamping.3, ClampingNo deformation, clamping reliability, rigidity, geometric accuracy, motion accuracy.4, CBN insertsCBN inserts, model specifications, geometric angle, edge treatment.5, Cutting parametersCutting speed(Vc), cutting depth(ap), feed rate(F).6, ProcessTool life, cutting force, surface integrity, chip breaking shape.

Page 9: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Suggestion for Cutting Parameters of Mintek tools CBN insertsIndustry Name of work piece Material of work piece Hardness Tool holder cutting

edge angle (Kr)Cutting speed (m/min)

Depth of cutting (mm)

Feed rate (mm/r)

Roll

Metallurgical Roll High-Ni-Cr cast iron HSD78 10°---45° 15---50 1---8 0.5---1.5Metallurgical Roll High-Cr HSD75 10°---45° 15---45 1---10 0.5---1.5Metallurgical Roll High-Cr steel HSD75 10°---45° 20---60 1---10 0.5---1.5Metallurgical Roll HSS HSD86 10°---45° 10---30 1---10 0.5---1.5Metallurgical Roll High carbon semi-steel HSD70 10°---45° 25---80 1---10 0.5---1.5Chilled Roll Chilled cast iron HSD68 10°---45° 20---50 1---10 0.5---1.5Ball screw roll Gr15 HRC60 45°---95° 80---125 0.5---8 0.1---0.3

Slurry Pump Parts

Slurry pump guard plate High-Cr steel HRC60 45°---95° 60---95 1---10 0.1---0.5Slurry pump impeller High-Cr steel HRC60 45°---95° 55---95 0.5---4 0.1---0.5Slurry Pump Volute Liner High-Cr steel HSD55 45°---95° 60---95 0.5---4 0.1---0.5

Auto Parts

Brake drum QT450 HB220 45°---95° 80---200 0.5---4 0.3---1.5Brake discs HT200 HB200 45°---95° 80---500 0.5---4 0.5---1.5Differential housing HT250 HB200 45°---95° 100---190 0.5---4 0.5---0.8Brake pads HT250 HB200 45°---95° 80---150 0.5---4 0.1---1Car floor HT200 HB200 45°---95° 100---180 0.5---4 0.1---1

High steel /Cast Iron

Hardened steel Gr15 HRC60 45°---95° 70---220 0.5---3 0.1---0.3Cast iron of alloy High-Cr HSD80 10°---45° 15---220 0.5---10 0.3---3Ductile cast iron QT450 HB350 45°---95° 80---500 0.5---5 0.3---1.5Gray cast iron HT200 HB200 45°---95° 100---800 0.5---2 0.5---1.5

Gear Hardened steel 40Cr HRC60 45°---95° 60---120 0.3---3 0.1---0.5Bearing Hardened steel 40Cr HRC60 45°---95° 60---120 0.3---3 0.1---0.5

About cutting parameters:1. The cutting parameters are related to the characteristics of the CBN insert, the hardness, strength, and cutting characteristics of the workpiece material.2. The cutting parameters are related to the machine tool's stability, power, chip-breaking ability, processing method, tool stress state and other factors.3. The choice of feed rate is related to the tool's main declination angle (Kr), cutting depth, CBN inserts size, CBN inserts thickness, and its shape.4. Selection of cutting depth. If its possible, choose the large cutting depth, but we should pay attention to balancing the load of the tool.5. The choice of cutting speed is related to the shape of the workpiece, the organization of the workpiece, the path of the tool, the hardness and strength of the material, and the life of the designed tool.

The setting of cutting parameters is related to many factors such as machine tool rigidity, workpiece shape, workpiece material, tool structure, tool material, tool geometry angle, tool durability, etc. Choosing appropriate cutting parameters could give full play to the effectiveness of machine and tools.

Mintek Abrasives & Tools Co.,Ltd www.mintektools.com [email protected] [email protected]

Page 10: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Work piece: Rolls

High Speed Steel Roll(HSS Roll)

Processing: Rough turning, Grooving surface.

Use Mintek Solid CBN inserts;

Grade: MTN-60, MTN-90;

Type: RCMX150900, RCMX060600, RCMX090700

Page 11: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Work piece: RollChilled Cast Iron Roll

Processing: Rough turning,

Use Mintek Solid CBN inserts;

Grade: MTN-20, MTN-60;

Type: RNGN200800, RNGN250600, RNGN150600

Chilled Cast Iron Roll

Page 12: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Roll Repair

Work piece: RollChilled Cast Iron RollHardness: HSD67

Use Mintek Solid CBN inserts;

Grade: MTN-20, MTN-60;

Type: SNGN150716

Cutting parameter: Vc=56-76m/min ap=2mm f=0.5mm/r

Page 13: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Tungsten Carbide Roller RingHardness:HRA88

Use solid CBN inserts of Mintek ToolsGrade: MTN-60, MTN-90

Type and Specification:SNMN201020 S05020SNGN201020 S05020

Cutting parameters:

Cutting speed Vc=15m/min Depth of Cutting ap=1mm Feed rate f=0.3mm/r,

Dry cutting, without coolant.

Page 14: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

Example suggestion of CBN inserts for Roll and Pump partsName of Work piece Narrow strip roll Work roll Work roll Pass roll Roller Ring Impurity pump

Material Chilled Cast Iron High-Ni-Cr Cast iron

High carbon semi-steel HSS Tungsten

CarbideAnti-wear alloy cast

iron

Turning parts external Turning cylindrical

Turning cylindrical Pass Turning

cylindricalEnd face, Turning

cylindrical,Inner bore

Solid CBN inserts

MTN-60 MTN-60MTN-20 MTN-60 MTN-60

MTN-20 MTN-60 MTN-60MTN-20

Suggestion for type and specification

RNMN201000S05020

RNMN201000S05020

SNMN150810S02020

RCGX120700S20020

SNMN201020 S05020

SNMN120720S03020

SNMN201020S05020

SNMN201020S05020

SNMN201020S05020

CNMN120810S02020

SNMN201020S03025

SNMN120416S02020

Suggest for R(mm) 1.0-3.0 1.0-3.0 0.8-3.0 0.8-2.0 0.8-3.0 0.8-3.0 

Suggest for edge S S S S S S

Suggest edge width(mm)

0.2-2.0 0.2-2.0 0.2-2.0 0.2-2.0 0.2-2.0 0.2-2.0

Suggest edge angle 20°-30° 20°-30° 20°-30° 20°-30° 20°-30° 20-30°

Cutting speed Vc(m/min)

20-50 15-60 25-80 10-35 10-30 40-90

Cutting depth ap(mm)

1-10 1-10 1-10 1-10 0.3-3 0.5-10

Feed rate f(mm/r)

0.5-1.5 0.5-1.5 0.5-1.5 0.5-1.5 0.1-1 0.1-0.5

Page 15: Cast Iron Rolls Cast Steel Rolls Cast Rolls Ring Rolls Repair

We trust:

Professionalism, Focus,

Quality Inspection, Quality,

Performance, Tool Life