萝卜视频app下载

Roller cover

Material: high carbon high alloy tool steel

Specifications: (Ф1200mm ~ Ф2200mm) × (450mm ~ 1800mm) (Ф1200mm-Ф2200mm) * (450mm-1800mm)

Life: The normal service life is more than 3 times that of the overlay welding sleeve.

Main technical conditions: Working layer thickness: 50mm ~ 80mm Hardness: HRC58 ~ 64 Inner layer tensile strength ≥600MPa, impact energy ≥18J Hardness: HB230 ~ 300 No inclusions, looseness, cracks and other casting defects.

Features: Centrifugal compound, smooth transition, high abrasion resistance on the outer layer, high toughness on the inner layer; built-in bite pattern, no cracks exist; no surfacing maintenance for life.

Main uses: mining, cement, coal chemical industry, iron and steel slag, thermoelectricity and other crushing treatment.

Product features: Relying on the company's advantages in the field of wear-resistant materials, specially developed the roll cover of the roll press, which greatly improved the wear resistance and impact resistance of the roll, and prolonged its service life; using the unique centrifugal composite technology To achieve "outer hard inner toughness", and centrifugally cast the surface bite pattern; compared with the overlay welding roll cover, it eliminates defects such as spalling and block loss caused by overlay welding, so as to achieve lifetime free surfacing maintenance, use The service life is more than 3 times that of the overlay welding sleeve.

Roller cover
Metallography of working layer: carbide + martensite

Vertical grinding roller sleeve

Material: high carbon high alloy tool steel

Conical mill specifications: HLM1250mm ~ 5700mm

Tire shape specification: HRM1300mm ~ 3400mm

Service life: The service life of the slag mill and cement mill is more than three times that of the surfacing roll sleeve.

Main technical conditions: Working layer thickness: 50mm ~ 100mm Hardness: HRC58 ~ 64 Inner layer tensile strength ≥600MPa, impact energy ≥18J Hardness: HB230 ~ 300 No inclusions, looseness, cracks and other casting defects.

Features: Centrifugal compounding, dense working layer structure, high wear resistance, high toughness of the inner layer, smooth transition zone, greatly improving the anti-accident ability of the roller sleeve.

Main use: powder processing for mining, cement coal chemical industry, steel slag, thermoelectricity, etc.

Product features: Relying on the company's advantages in the field of wear-resistant materials, specially developed vertical mill roller sleeves, which greatly improves the wear resistance of the vertical mill, prolongs the service life, and strengthens the accident resistance of the vertical mill Contoured centrifugal composite technology to achieve "external strength and internal toughness"; compared with surfacing rolls and roller covers, it eliminates defects such as spalling and falling blocks caused by surfacing; lifetime maintenance-free surfacing maintenance; slag grinding and cement grinding life All are more than 3 times of the overlay welding sleeve.

Vertical Grinding Roller Covers
Metallography of working layer: carbide + martensite

Ball press roller sleeve

Material: high carbon high alloy tool steel

Service life: service life is more than 3 times of high carbon high alloy roll sleeve.

Main technical conditions: Working layer thickness: 10mm ~ 25mm Hardness: HRC58 ~ 64 No casting defects such as inclusions, looseness, cracks.

Features: The combination of bimetallic metallurgy, the transition is gentle, and the "outer strength and inner toughness" is realized; maintenance-free for life.

Main uses: coal chemical industry, steel slag treatment, etc.

Ball press roller sleeve partial shape

Roller

Production capacity: The company can produce roller presses of various materials, vertical mills, rollers for ball presses and other products.

Roller

Vertical mill liner

Material: high carbon high alloy tool steel

Process: composite casting

Technical standard: Implement GB / T8263-1999 non-destructive testing DIN1690.2

Main use: cement vertical mill, slag vertical mill, coal mill.

Main technical conditions: HRC≥58, no cracks, slag inclusions, looseness, burrs, burrs and other defects that affect product strength and organization.

Designed service life:

Cement vertical mill Slag vertical mill
High alloy wear resistant steel More than 3 times the service life of the overlay welding sleeve More than 3 times the service life of the overlay welding sleeve

Features:

1. Relying on the company's advantages in the field of wear-resistant materials, research and development of wear-resistant materials specifically used in cement mining equipment, greatly improving the wear resistance and service life of the working layer.

2. Compared with the previous surfacing wear-resistant lining, it eliminates the disadvantages of spalling caused by micro-cracks on the surfacing layer, avoids surfacing maintenance, and is used in combination with the company's high-alloy vertical grinding roller sleeve to ensure that the service life is More than 3 times of welding roller sleeve.

Cone type grinding lining board

Coal mill roll sleeve

Material: high carbon high alloy tool steel

Main technical conditions: working layer thickness: 50mm ~ 100mm hardness: HRC58 ~ 64

Life: The service life is more than 3 times that of the overlay welding sleeve.

Features: The combination of bimetallic metallurgy, the transition is smooth, and the "outer strength and inner toughness" is achieved; maintenance-free for life; no inclusion defects such as looseness, cracks and casting.

Coal mill roll sleeve

Plastic mold steel / XT-718

Enterprise grade China AISI JIS DIN
XT-718 3Cr2MnNiMo 1.2378

Main characteristics: uniform hardness, excellent polishing performance, good machining performance, good hardenability, good toughness, suitable for surface treatment.

Main application: Suitable for large-scale plastic molds with a thickness of more than 400mm, such as bumpers, instrument panels, and housings of household appliances.

Smelting process: electric furnace + LF / VD

chemical composition:

C Si Mn Cr
0.30-0.50 0.20-0.40 1.00-1.90 1.50-2.50
S≤0.005, P≤0.015
Ni Mo V
0.70-1.50 0.10-0.40 0.10-0.20
S≤0.005, P≤0.015

Purity: non-metallic inclusions, tested according to GB / T10561-2005, meet the following requirements:

Non-metallic inclusion types A sulfide B alumina C silicate D spherical oxide
Eligible level ≤1.0 ≤1.5 ≤1.5 ≤1.5

Ultrasonic testing: according to GB / T6402-2008 level IV or SEP1921-test group 3-class E, e or according to user requirements.

Low magnification organization: defects such as shrinkage, slag inclusion and white spots are not allowed; center porosity and ingot-type segregation are evaluated according to GB / T1299, and the pass grade is ≤1.

High magnification structure: fine tempered sorbite, grain size ≥7 grade.

Dimensions: The maximum diameter of round steel is 1200mm. The maximum thickness of the module is 1200mm.

Factory state: pre-hardened and tempered, 31-34HRC or user requirements.

100 times microstructure
500 times microstructure

Plastic mold steel / XT-718MODESR

Enterprise grade
XT-718MODESR

Main features: Uniform material hardness, better polishing performance than XT-718, good machining performance, good welding performance, thermal conductivity increased by nearly 20% compared with XT-718, greatly shortening the injection cycle

Main application: Suitable for plastic molds with higher polishing performance.

Smelting process: electric furnace + LF / VD + ESR

chemical composition:

C Si Mn Cr
0.20-0.35 ≤0.40 1.20-1.80 1.00-1.80
S≤0.005, P≤0.015
Ni Mo V
0.80-1.40 0.30-0.80 0.10-0.20
S≤0.005, P≤0.015

Purity: non-metallic inclusions, tested according to GB / T10561-2005, meet the following requirements:

Non-metallic inclusion types A sulfide B alumina C silicate D spherical oxide
Eligible level ≤0.5 ≤1.0 ≤1.0 ≤1.0

Ultrasonic testing: according to GB / T6402-2008 level IV or SEP1921-test group 3-class E, e or according to user requirements.

Low magnification organization: defects such as shrinkage, slag inclusion and white spots are not allowed; center porosity and ingot-type segregation are evaluated according to GB / T1299, and the pass grade is ≤1.

High magnification structure: fine tempered sorbite, grain size ≥7 grade.

Dimensions: The maximum diameter of round steel is 600mm. The maximum thickness of the module is 500mm.

Factory state: pre-hardened and tempered, 38-42HRC or user requirements.

100 times microstructure
500 times microstructure

Hot work die steel / XT-H13ESR

Enterprise grade China AISI JIS DIN
XT-H13ESR 4Cr5MoSiV1 H13 SKD61 1.2344

Main characteristics: uniform material hardness, good machining performance, excellent polishing performance, high abrasion resistance under high toughness and high temperature conditions, good high temperature strength and thermal fatigue resistance, good isotropy

Main application: Suitable for extrusion die, hot pressing die, die casting die, etc.

Smelting process: electric furnace + LF / VD + ESR

chemical composition:

C Si Mn Cr Mo V
0.32-0.42 0.80-1.20 0.20-0.50 4.75-5.50 1.10-1.75 0.80-1.20
S≤0.005, P≤0.015

Purity: non-metallic inclusions, tested according to GB / T10561-2005, meet the following requirements:

Non-metallic inclusion types A sulfide B alumina C silicate D spherical oxide
Eligible level ≤0.5 ≤1.0 ≤1.0 ≤1.0

Ultrasonic testing: according to GB / T6402-2008 level IV or SEP1921-test group 3-class E, e or according to user requirements.

Low magnification organization: defects such as shrinkage, slag inclusion and white spots are not allowed; center looseness and segregation are evaluated according to GB / T1299, and the pass grade is ≤1.

High magnification: Spherical pearlite. The microstructure is rated according to NADCA # 207. Within 500 times, it reaches within AS7, and at 50 times, the level of tissue segregation reaches below 3.

Lateral impact performance: 7 × 10 × 55 non-notched sample, quenched and tempered to 44-46HRC, average impact energy ≥200J; or according to user requirements.

Dimensions: round steel maximum diameter 600mm module maximum thickness 500mm

Factory state: soft annealing, hardness ≤220HB or user requirements.

100 times microstructure
500 times microstructure

Hot work die steel / XT-H11ESR

Enterprise grade China AISI JIS DIN
XT-H11ESR 3Cr2MnNiMo H11 SKD6 1.2343

Main characteristics: uniform material hardness, good machining performance, excellent polishing performance, high abrasion resistance under high toughness and high temperature conditions, good high temperature strength and thermal fatigue resistance, good isotropy

Main application: Suitable for extrusion die, hot pressing die, die casting die, etc.

Smelting process: electric furnace + LF / VD + ESR

Main chemical composition:

C Si Mn Cr Mo V
0.32-0.42 0.80-1.20 0.20-0.50 4.75-5.50 1.10-1.60 0.30-0.60
S≤0.005, P≤0.015

Purity: non-metallic inclusions, tested according to GB / T10561-2005, meet the following requirements:

Non-metallic inclusion types A sulfide B alumina C silicate D spherical oxide
Eligible level ≤0.5 ≤1.0 ≤1.0 ≤1.0

Ultrasonic testing: according to GB / T6402-2008 level IV or SEP1921-test group 3-class E, e or according to user requirements

Low magnification organization: defects such as shrinkage, slag inclusion and white spots are not allowed; center looseness and segregation are evaluated according to GB / T1299, and the pass grade is ≤1.

High magnification: Spherical pearlite. The microstructure is rated according to NADCA # 207. Within 500 times, it reaches within AS7, and at 50 times, the level of tissue segregation reaches below 3.

Lateral impact performance: 7 × 10 × 55 non-notched sample, quenched and tempered to 44-46HRC, average impact energy ≥200J; or according to user requirements.

Dimensions: round steel maximum diameter 600mm module maximum thickness 500mm

Factory state: soft annealing, hardness ≤220HB or user requirements.

100 times microstructure
500 times microstructure

High-end plastic mold steel / XT-420MODESR

Main characteristics: better corrosion resistance than conventional plastic mold steel, good machinability, excellent polishing performance, good quenching stability and hardenability, and high purity.

Main application: Suitable for high-end molds such as digital products.

Smelting process: electric furnace + LF / VD + ESR + ESR

chemical composition:

C Si Mn Cr Ni S P
0.20-0.40 ≤1.00 ≤0.50 11.0-15.0 0.10-0.20 ≤0.005 ≤0.015
S≤0.005, P≤0.015

Purity: non-metallic inclusions, tested according to GB / T10561-2005, meet the following requirements:

<
Non-metallic inclusion types A sulfide B alumina C silicate D spherical oxide
Eligible level ≤0.5 ≤1.0 ≤1.0 ≤1.0

Ultrasonic testing: according to GB / T6402-2008 level IV or SEP1921-test group 3-class E, e or according to user requirements.

Low magnification organization: defects such as shrinkage, slag inclusion and white spots are not allowed; center looseness and segregation are evaluated according to GB / T1299, and the pass grade is ≤1.

High magnification tissues: spheroidal pearlite, microstructures are rated according to GB / T1299-2000, the spheroidal pearlite organization level is within 3 grades, and the banded and reticulate structure is within 2 grades.

Dimensions: round steel maximum diameter 600mm module maximum thickness 500mm

Factory state: soft annealing, hardness ≤220HB or user requirements.

100 times microstructure
500 times microstructure
Large module