What is the difference between high speed steel rolls and carbide rolls? What are the advantages of

Tungsten carbide rolls are developed on the basis of cemented carbide cutters, which are made of hard tungsten carbide particles hard phase sintered with nickel, cobalt and other bonded phase metals. The performance of tungsten carbide depends on the size of tungsten carbide particles and the amount of binder metal content, when the binder phase metal contains a certain amount of nickel and chromium, it will not only greatly improve the thermal fatigue resistance of the roll, but also improve the corrosion resistance of the roll. The hardness of tungsten carbide rolls is generally controlled at 78HRA 85HRA, which is usually composed of a combination of carbide roll rings and roller shafts.

Tungsten carbide roll rings are widely used in the finishing stand of high-speed wire rod mills, as well as the pre-finishing stand of some high-speed wire rod mills and the finishing stand of bar mills. The biggest advantage of cemented carbide rolls is high hardness, good wear resistance, and the amount of single-channel rolling can reach twice that of high-speed steel rolls. The disadvantages are low toughness and high brittleness. When it is used on rolling mills such as finishing stand or sizing frame of bar rolling mill, due to the large size of the rolled product and the large load carried by the roll ring, the roll ring is often broken due to the impact of the steel stack or the low-temperature material head of the rolled product.

The high-speed steel roll takes into account the wear resistance of cast iron rolls and the strength and toughness of cemented carbide rolls. High-speed steel rolls can be said to be an upgraded version of cemented carbide rolls, and you can also go to such a manufacturer to ask.

If it helps you, so be it, thank you!

Our company has processed high-speed steel rolls and cemented carbide tools or shanks for customers. I also make small rolls with the outer diameter of hard alloy D60, and I personally think that the alloy is more brittle, but the milk is lost.

Hello, dear, I'm glad to answer for you. Good chromium content. The rolls of rolled high-alloy steel have a good chromium content.

The working layer of the high-chromium composite roll contains 6 22% chromium alloy with a core of high-strength ductile iron. According to the different carbon content, it is divided into high chromium cast steel rolls and individual cast iron rolls. Alloy cast steel roll is a kind of cast steel roll whose composition is in the range of eutectic steel and super-eutectic steel, and the alloy content is greater than that of the cast steel roll, and its carbon content is generally between, and contains some alloying elements such as chromium, nickel, molybdenum, vanadium, etc.

Finally, I wish you a happy life! <>

Summary. Kiss! Hello, happy to answer your <>

What is the difference between pro-structural steel rolls and aluminum alloy rolls is as follows; The steel plate is a flat steel made by casting molten steel and cooling and pressing. It is flat, rectangular and can be rolled directly or sheared from wide steel strips. Steel plates are divided according to thickness, thin steel plates < 4 mm (the thinnest mm), medium steel plates 4 60 mm, extra-thick steel plates 60 115 mm.

Steel plate is divided into hot rolled and cold rolled according to rolling. The width of the sheet is 500 1500 mm; The width of the thickness is 600 3000 mm. Thin plates are divided into ordinary steel, high-quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet. According to professional use, there are plates for oil drums, enamel plates, bulletproof plates, etc.; According to the surface coating, there are galvanized sheets, tinned sheets, lead-plated sheets, plastic composite steel plates, etc.

Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements, and is one of the light metal materials. It can be seen that the difference between steel plate and aluminum alloy: steel plate is a flat steel formed by casting and cooling molten steel.

Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying compounding elements, I hope mine can help you <>

Do you have any other questions?

What is the difference between structural steel rolls and aluminum alloy rolls.

Kiss! Hello, happy to answer your <>

The differences between pro-structural steel rolls and aluminum alloy rolls are as follows; The steel plate is a flat steel made by casting molten steel and cooling and pressing. It is flat, rectangular, and can be rolled directly or cut by wide steel strips. Steel plates are divided according to thickness, thin steel plates < 4 mm (the thinnest mm), medium steel plates 4 60 mm, extra-thick steel plates 60 115 mm.

Steel plate is divided into hot rolled and cold rolled according to rolling. The width of the sheet is 500 1500 mm; The width of the thickness is 600 3000 mm. Thin plates are divided into ordinary steel, high-quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet. According to professional use, there are plates for oil drums, enamel plates, bulletproof plates, etc.; According to the surface coating, there are galvanized sheets, tinned sheets, lead-plated sheets, plastic composite steel plates, etc.

Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements, and is one of the light metal materials. It can be seen that the difference between steel plate and aluminum alloy: steel plate is a flat steel formed by casting and cooling molten steel.

Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying compounding elements, I hope mine can help you <>

Do you have any other questions?

Aluminum alloy rolls and structural steel rolls are a little better.

Aluminophilic alloy rolls are a little better.

Rolls are an important part on a rolling mill that uses the pressure generated when a pair or group of rolls rolls rolls to roll steel. It mainly bears the effects of dynamic and static loads, wear and temperature changes during rolling.

There are two types of rolls: hot rolls and cold rolls.

The materials of the work rolls in the commonly used cold rolls are 9Cr, 9Cr2, 9CrV, 8CrMov, etc., and the cold rolled rolls require surface quenching with a hardness of HS45 105.

The commonly used materials for hot rolls are 55mn2, 55cr, 60crmnmo, 60simnmo, etc., and hot rolls are used in the processing of billets, thick plates, section steels, etc. It has withstood strong rolling forces, severe wear and thermal fatigue, and the hot roll works at high temperatures, and allows the diameter to wear within the unit workload, so it does not require surface hardness, only high strength, toughness and heat resistance. The hot roll is only integrally normalized or quenched, and the surface hardness requires HB190 270.

The application of high-speed steel rolls is an important part of the development of modern steel rolling production, and it is another major change for the development of the steel industry after microalloying, controlled rolling and cooling technology. HSS rolls have been widely used in the production of steel rolling in the fields of plates, sections, bars and wires in Japan, not only for work rolls, but also for support rolls. The good wear resistance of high-speed steel rolls is inseparable from the fact that it has obvious characteristics that are different from traditional rolls.

Features of high chromium steel rolls:

The use of high-chromium cast rolls, ferrochrome and high-chromium steel cast rolls, is a major innovation in roll manufacturing technology in recent years, following the adoption of composite casting of high-alloy infinitely chilled cast iron rolls and semi-steel rolls. The new high-chromium steel composite casting rolls are replacing ultra-high carbon cast steel rolls, needle-shaped ductile iron rolls and composite cast infinitely chilled cast iron rolls.

High chromium steel rolls have the following characteristics:

1) Good hardening depth. The effective diameter can be increased to 100 mm or more. The radial hardness of the outer layer of the roll is stable at HV760-780.

2) Good heat hardness. When the surface is heated at 450, the hardness of the roller body does not decrease, and it has good tempering resistance, so the tempering temperature of high-chromium steel is 400 -500. High temperature tempering, in order to activate the austenite and then cool it into secondary martensite.

In order to eliminate residual austenite for maximum effectiveness, several tempering sessions can be performed. There is also a secondary hardening effect in tempering. The Paralympic content of 10% chromium is 3%-4% for high-grid steel rolls, while 7%-10% for forged steel rolls.

3) The high chromium steel roll body has high hardness and is not easy to wear, and the roll hardness comprehensively reflects the elasticity, plasticity and stress state of the material. The delivery hardness of high-chromium steel rough-rolled work rolls is HS73-83, and the cold-rolled work rolls are HS90 or more. After shot peening, it is easy to obtain a highly hairy roller surface, which has good anti-slip performance.

4) After shot peening, it is easy to get a highly hairy roller surface, which has good anti-slip performance.

5) The cold water conditions of high chromium steel rolls are not as demanding as those of high chromium cast iron rolls.

6) When using high chromium steel rolls, due to the high chromium content, the roughness of high chromium steel rolls has good retention, and the roughness of rolling up to 1000t h can still be maintained above'。The surface roughness of the roll is large, so accidental slippage can be prevented.