Basic Info.
After-sales Service
Technical Support
Application
Metal Processing Machinery Parts, Metal Casting Machinery, Rolling Mill
Transport Package
Standard Packing
Specification
Customized specifications
Product Description
Description:The main working parts and tools on a rolling mill that cause continuous plastic deformation of metals.The use effect of the roll in the rolling mill depends not only on the material of the roll and its metallurgical quality, but also on the conditions of use, roll design, operation and maintenance. The operating conditions of the rolls of different types of rolling mills are very different, and the factors that cause the difference are:1) rolling Mill conditions. Such as rolling mill type, rolling mill and roll design, pass design, water cooling conditions and bearing types;2) Rolling conditions such as the variety, specification and deformation resistance of the rolled material, reduction system and temperature system, output requirements and operation, etc.;3) Requirements for product quality and surface quality, etc.Our company company is equipped with a complete production process and advanced production and testing equipment, which fundamentally ensures the high quality of the rolls and meets the rolling characteristics and technical requirements of various rolling mills.High-speed steel has high wear resistance and hardenability, especially red hardness at high temperatures, which makes high-speed steel more suitable for roll manufacturing materials. HSS Rolls Unique Advantages
1. The high-speed steel roll material Contains high alloy elements, the single-groove (time) steel passing is higher, improving the overall benefit.
2. The HSS Roll has good thermal stability, high hardness, and good wear resistance.
3. Forming oxide film during use working process, improve wear-resistant, the strength of the roll neck is high.
4. High expansion coefficient and good thermal conductivity, more conducive to control.
The performance of rolls depends on the microstructure of the final roll. Obtaining high-hardness granular carbide and fine matrix structure is the basic guarantee to improving roll performance.
It can be seen from the metallographic photos that the metallographic structure of the high-speed steel roll is much better than other materials in terms of the shape, quantity, size and distribution of carbides, as well as the matrix structure and grain size.
Application:Various types of metallurgical rolls used for modern hot strip continuous rolling mills, medium and wide plate rolling mills, and various types of steel, bar, high wire, medium and narrow strip millsspecification:Chemical Analysis| Designation of rolls | Material code | C | Si | Mn | Ni | Cr | Mo | V | W |
| HSS | HSS | 1.50-2.20 | 0.30-1.00 | 0.40-1.20 | 0.00-1.50 | 3.00-8.00 | 2.00-8.00 | 2.00-9.00 | 0.00-2.00 |
| S-HSS | S-HSS | 0.60-1.20 | 0.80-1.50 | 0.50-1.00 | 0.20-1.20 | 3.00-9.00 | 2.00-5.00 | 0.40-3.00 | 0.00-3.00 |
| Designation of rolls | Material code | Barrel hardness(HSD) | Neck hardness (HSD) | Tensile strength (Mpa |
| HSS | HSS | 75-95 | 30-45 | 400-500 |
| S-HSS | S-HSS | 75-98 | 30-45 | 400-500 |
| Designation of rolls | Material code | Application |
| HSS | HSS | Rolled strip, bar finishing roller, high speed wire pre-finishing, steel roller universal rolling mill, wide plate mill work rolls |
| S-HSS | S-HSS | Rough rolling hot strip mill work rolls, cold rolled strip steel work roll, intermediate roll |
The HSS rolls and roll rings produced by our company have been widely used in more than 300 rolling production lines in almost all large steel mills in China (Zhongtian Iron and Steel, Shagang Group, Hegang Group, etc.), and are exported to dozens of countries on five continents.
2. HIGH YIELD
In 2014, the annual production capacity was expanded to 15,000 tons. In 2020, the output of HSS rolls and roll ring series products exceeded 10,000 tons.
3. VARIETY
At present, the company's products have covered: HSS rolls, reinforced HSS rolls, high-strength HSS rolls, super-strength HSS rolls, split HSS rolls, KOCKS roll rings, double high-bar roll rings, high-speed wire pre-finishing rolls Rings and pinch roller rings and other series.
4. ADVANCED EQUIPMENT
The company now has more than 100 sets of intermediate frequency furnaces, centrifuges, heat treatment furnaces, and CNC machining equipment.
5. INNOVATION
we have been concentrated on the development and innovation of the production process and materials of them, and have obtained a number of HSS roll and HSS roll ring patents.About LMM GROUP:Our factory established in 1976, is an entirely state-owned, with more than 1500 staffs, covers an area of 120000m2, including 50000m3 of building area. manufactures a wide range of rolls that are used in different mills e.g. Hot and Cold Strip Mill Rolls, Plate Mill Rolls, Section Mill Rolls, Narrow Strip Mill Rolls, Sendzimir and Cluster Mill Roll, and Aluminum Mill Rolls.Focused product development technology leader in key products segment.Rolls are manufactured through either a casting or a forging process.The materials that are used include steel scrap, iron and various alloys (e.g. chromium, nickel, molybdenum, vanadium, etc.)
Address:
Building 8, Yintian South Park, Yida Chuntian, Ganjingzi District, Dalian 116000, Dalian, Liaoning, China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 14001, ISO 20000
Company Introduction:
Founded in 2007, the company is an international general contractor specializing in import and export trade in steel, airport, food industry, logistics equipment, and mine bulk material transportation projects. The company is committed to providing customers with one-stop comprehensive services, setting up branches and offices overseas. Provide one-stop solutions such as raw materials, production equipment spare parts, EPC engineering design, technology upgrades and after-sales support for steel mills, airports, and food processing plants in various countries.
