Roll blank is cast by imported centrifugal compound casting equipment. High Ni Cr Mo alloy is adopted, the thickness of the alloy layer is large and even 30-35mm, and the hardness is up to Hs78-80. Through shaft cold assembly technology or half shaft end cover forging shaft head is adopted, which can be processed and manufactured according to the requirements of different models of users. It has been used by many imported rolling mills, and various technical indexes have reached or exceeded foreign standards.
Plastic roller is mainly used for crushing, calendering, shaping, and other processing of plastic. The outer layer of rubber roller body is made of alloy by electric furnace smelting and composite centrifugal casting, which has the characteristics of high hardness and good wear resistance. The company according to customer requirements, processing a variety of special specifications of rubber and plastic roll. It is mainly used in rubber machinery such as rubber mixer, rubber breaker, fine breaker, refining machine, calendar, etc.
technical parameters pls view our website
Product features: durable and long service life
The roller can be applied in not only metallurgy industry but other appliance.
1. Furnace roller
2. Herth roll
3. Sink roll
4. Heat resistant roller
Application:
The various rolls/rollers are of good heat, corrosion, wear-resistant properties, working at high-temperature environment on average: 800 to 1, 200 C, which is used in the steel mills, like continuous annealing line, continuous galvanizing line.
Process:
Centrifugal casting for barrel/tube, forging for journal/shaft, static /investment or sand casting for cone/trunions, welding and machining, and grinding.
Material:
High nickel and high chrome heat resistant alloys, cobalt-base alloys, like HU, HT, HK, HP, HW, 24/24NbTiZr, 50Cr/50Ni (2.4813), 1.4865, 1.4849, 1.4848, 1.4410, 1.4059, 1.4841, 1.4845, 1.4852, 2.4879 or as per customer's requirements.
The roller can be forged in perfect quality and also manufactured by centrifugal cast. The ceramic molds centrifugal castings offer many advantages as to the flexibility of diameter and length. The production is dense, sound castings and has almost the same mechanical properties as forging production. The production can be machined to different roller, hydraulic cylinder, pipe model, etc. Our production has grand application area in industry and has international standards of quality that help us assuring our customers of our credibility.
Duplex stainless steel (DSS for short) refers to stainless steel with ferrite and austenite accounting for about 50% respectively, and the content of less phase generally needs to reach 30% at least. In the case of low C content, Cr content is 18% ~ 28%, Ni content is 3% ~ 10%. Some steels also contain Mo, Cu, Nb, Ti, N and other alloy elements.
This kind of steel has the characteristics of austenite and ferritic stainless steel. Compared with ferrite, it has higher plasticity and toughness, no room temperature brittleness, significantly improved intergranular corrosion resistance and welding performance, and maintained 475 brittleness, high thermal conductivity and Superplasticity of ferritic stainless steel. Compared with austenitic stainless steel, it has higher strength, intergranular corrosion resistance and chloride stress corrosion resistance. Duplex stainless steel has excellent pitting corrosion resistance and is also a nickel saving stainless steel.
Exotic Fastener Material List
Aluminum
Aluminum 2024 Aluminum 6061 Aluminum 7075
Copper, Brass & Bronze
Aluminum Bronze Aluminum Nickel Bronze Brass Copper CDA 110
Manganese Bronze 675 Naval Brass 464 Phosphorous Bronze 510 Silicon Bronze 651
Silicon Bronze 655
.
Exotics
904L A-286 AL6XN Alloy 20
Alloy 50 Alloy 60 Avesta 2205 Avesta 254 SMO
Tantalum Titanium Waspaloy Zirconium
.
Nickel Alloys
Nickel Alloy B2 Nickel Alloy B3 Nickel Alloy C276 Nickel Alloy G-30
Inconel 600 Inconel 601 Inconel 625 Inconel 718
Inconel�¢ 800/800H Inconel
What is a steel sleeve?
Steel sleeve is also called a steel joint. A connector for connecting reinforcement and having an internal thread corresponding to the thread of the screw head. The construction process is simple. The end of the steel bar is processed into straight thread by rolling process, and the two steel bars are connected with each other by the corresponding connecting sleeve.
application of steel sleeve
It is widely used in the coiling of foil, strip, and plate in the industries of aluminum foil, aluminum plate, and stainless steel foil strip, etc.
As the sleeve rotates at high speed during working, the requirement for concentricity and dynamic balance of the sleeve is strict, which has a great influence on the product qualification rate and subsequent reprocessing. Therefore, centrifugal pouring is the best production process for the steel sleeve.
Sometimes products need heat treatment, which puts higher requirements on steel sleeves. Generally speaking, carbon steels such as ZG45 and ZG55 have lower strength and are not resistant to high-temperature deformation, they need alloy steel sleeves such as ZG35CrNiMo, ZG25Cr2Mo1V and 35CrMo.
Process Of Steel Sleeve
In general the product of steel sleeve for cold rolling mill process is as following:
1.Steel smelt with qualified ingredients.
2.Centrifugal casting.
3. Semifinished products forming.
4.Semi-finished products heat treatment-normalizing.
5.Semifinished products heat treatment-tempering.
6.Semifinished products quenching and machining.
7. Finishing internal side.
8. Finishing outside surface benchmarked with an internal hole.
9.Products inspection.
10. Strike steel sleeve for cold rolling mill trademark.
11. Certificate issued.
12.Packaging.
Quenching process: Pit quenched with water quenching and oil cooling.
We use the advanced process of smelting and casting dedicated to ensure the steel sleeve chemical composition is reliable, accurate, and has the same properties. Centrifugal casting is dedicated to ensuring internal and external surfaces of the sleeve have no defects such as crack, slag, blowhole, blister, etc. The heat treatment process will make sure the mechanical performance of the sleeve. With the special machining tool and rational process, the sleeves have high performance of concentricity, cylindrical, symmetry, and balance.
For Common specifications pls view our website
what is a radiant tube
A radiation tube is a tube extending straight from the center in all directions.It refers to a non-central pipe (or dry pipe) which conveys the material action of the dry pipe to a designated or non-designated address.Radiation tube is widely used in heating furnace and is the main heating element of heating furnace.
Application of alloy
The radiant tubes are working at high temperature environment on average: 800-120 C, most of them are used for indirect heating to furnace like CAL (continuous annealing line) CGL (continuous galvanizing line).
Process of alloy
Centrifugal/spun casting method for tube sections, investment casting or sand casting for the bends, hangers, welding and machining
Material of alloy
High Nickel and high Chrome heat resistant alloys, Cobalt base alloys, like.
HU, HT, HK, HP, HW, 24/24NbTiZr, SCH21, ZG40Cr25Ni20, 50Cr/50Ni (2.4813), 1.4865, 1.4849, 1.4848, 1.4410, 1.4059, 1.4841, 1.4845, 1.4852, 2.4879 or as per customer's requirements
Standard of alloy
ANSI, ASTM, ASME, DIN, GB etc.
Model NO.: Special-Metal RT
Casting Metal: High Ni-Cr Alloy
Casting Form Material: HU, HT, HK, HP, HW, 24/24NbTiZr, SCH21, ZG40Cr25Ni20, 50Cr/50Ni (2.4813), 1.4865, 1.4849, 1.4848, 1.4410, 1.4059, 1.4841, 1.4845, 1.4852, 2.4879 or as per customer's requirements
Casting Form Usage Count: Permanent
Export Markets: North America, South America, Eastern Europe, Africa, Oceania, Mid East, Western Europe
Designation:
A743/A743M-13a Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
A451ASTM A451-06 Standard Specification for Centrifugally Cast Austenitic Steel Pipe for High-Temperature
A487 Standard Specification for Steel Castings Suitable for Pressure Service
A351 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
A352 Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service
A703 Standard specification for steel casting,General requirements,for pressure-containing parts
Features:
1. High abrasion resistance
2. Corrosion resistance
3. Tear resistance
4. Hardness:
Applications:
1. Roller screen rolls for the iron ore pelletizing industry
2. Subsequent pellet processing operation in the steel industry
