CN101994051A

CN101994051A - Tungsten carbide roll collar formula

Info

Publication number: CN101994051A
Application number: CN 201010506548
Authority: CN
Inventors: 金益民; 严迪科; 郭伟波; 李巍
Original assignee: Zhejiang Hengcheng Cemented Carbide Co Ltd
Current assignee: Zhejiang Hengcheng Cemented Carbide Co Ltd
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-03-30

Abstract

The invention discloses a tungsten carbide roll collar formula being capable of effectively solving the problems of low combination property and low rolling amount of the traditional tungsten carbide roll collar. The tungsten carbide roll collar formula comprises the following components in weight percentage: 93-98 percent of WC, 1.5-5 percent of Co, 0-4 percent of Ni, 0.2-0.3 percent of TiC, 0.2-0.3 percent of CrC, 0.05-0.3 percent of VC and 0.05-0.1 percent of Y. The invention has the advantages that the raw material composition and the component proportion of a tungsten carbide roll are improved so that the tungsten carbide roll has the internal condition formed by an internal organization structure meeting the service performance requirement, and moreover, the roll collar has small abrasion loss, smooth surface and long service period, cannot be broken and has low roll replacing frequency, and thus, the roll replacing work load is reduced, the cost is reduced, the operating rate of a rolling mill and the product quality are improved and the inherent quality and the surface quality of produced wire rod products are ensured.

Description

A kind of carbon tungsten roller ring prescription

Technical field

The present invention relates to a kind of carbon tungsten roller ring prescription.

Background technology

Collars is the crucial utensil that makes rolled piece produce viscous deformation and obtain desirable design shape, and the wear resistance of collar directly influences the surface quality of wire product and the production operational availability of milling train.High-quality carbon tungsten roller ring is later in the time of China's exploitation, the surface quality and the inner quality of institute's production roll are all relatively poor, tissue looseness causes roll to wear no resistance, serious wear and roller crushing rate height, the amount of rolling of single roller and single groove is less, is difficult to satisfy the service requirements of the high-quality alloy steel rolling of high-speed rod.In addition, the high speed wire rod finishing block of the advanced level in the world group of domestic continuous introduction is decided unit with subtracting, the carbon tungsten roller ring of rolling mill is being born the dual function of amount of plastic deformation and control product specification size before finished product and the finished product, in order to adapt to the high speed development of wire product, the wear resistance and the resistance to cleavage of the tungsten carbide roll of rolling mill before finished product and the finished product are had higher requirement.Though particularly domestic production carbon dioxide-shielded welding silk steel carbon content is no more than 0.8% at present, contains high manganese 1.4～1.6%, high silicon 0.8～1.4%; In the high temperature rolling process, remain high rigidity, the general tungsten carbide collars is used and can not adapt to, what manufacturer was simple only tackles key problems from forming technology, prescription, the isostatic pressure aspect of collars, and seldom study from aspects such as the working condition of carbon tungsten roller ring and chemical ingredientss, therefore can't fundamentally solve the use properties problem of tungsten carbide roll always.And make the over-all properties that how to improve tungsten carbide roll become a difficult problem that needs to be resolved hurrily.

Summary of the invention

The object of the present invention is to provide a kind of carbon tungsten roller ring prescription, it is high effectively to solve existing carbon tungsten roller ring over-all properties, the problem that the amount of rolling of collars is not high.

In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of carbon tungsten roller ring prescription, comprise following component, the each component weight percent is: WC 93～98%, Co 1.5～5%, Ni 0～4%, TiC 0.2～0.3%, CrC 0.2～0.3%, VC 0.05～0.3%, Y 0.05～0.1%.

Preferably, the each component weight percent is: WC 93%, Co 5%, Ni1%, TiC 0.3%, CrC0.3%, VC 0.3%, Y 0.1%.Lower-cost steel rolling cord carbon tungsten roller ring prescription.

Preferably, the each component weight percent is: WC 98%, Co 1.5%, TiC 0.2%, CrC 0.2%, VC 0.05%, Y 0.05%; Can reach the steel rolling cord carbon tungsten roller ring prescription of better performance.

Preferably, the each component weight percent is: WC 95%, Co 2%, Ni 2.2%, TiC 0.25%, CrC 0.25%, VC 0.2%, Y 0.1%; Take into account the steel rolling cord carbon tungsten roller ring prescription of performance and cost.

Preferably, the each component weight percent is: WC 93%, Co 2.5%, Ni 4%, TiC 0.2%, CrC0.2%, VC 0.05%, Y 0.05%; Take into account the another kind of steel rolling cord carbon tungsten roller ring prescription of performance and cost.

Compared with prior art, advantage of the present invention is: be on the basis of main raw material with the wolfram varbide, the element cobalt and the nickel that have not only added Wimet phase with fabulous adhesive property, and be added with titanium carbide, the mixture of chromium carbide and vanadium carbide and the yttrium of gaining in strength, thereby the raw material that has improved tungsten carbide roll is formed and composition proportion, make it possess the internal condition of the internal organizational structure formation of satisfying the use properties needs, be applied in the water quality pH value and be alkalescence, water temperature is lower than under the condition of 32 ℃ of water coolants, can improve the amount of rolling of roll list groove single high carbon steel greatly, compare with the external carbon tungsten roller ring that uses of the same trade, the amount of rolling of collars can be enhanced about more than once, and the collars abrasion loss is little, the not broken roller of smooth surface, life cycle is long, and the roll change number of times is few, not only reduced the roll change workload, reduce expenses, and improved operating rate of rolling mill and product production, guaranteed the inner quality and the surface quality of institute's production line section product.

Embodiment

Embodiment one:

A kind of carbon tungsten roller ring prescription comprises following component, and the each component weight percent is: WC 93%, Co5%, Ni 1%, TiC 0.3%, CrC 0.3%, VC 0.3%, Y 0.1%.

Embodiment two:

A kind of carbon tungsten roller ring prescription comprises following component, and the each component weight percent is: WC 98%, Co1.5%, TiC 0.2%, CrC 0.2%, VC 0.05%, Y 0.05%.

Embodiment three:

A kind of carbon tungsten roller ring prescription comprises following component, and the each component weight percent is: WC 95%, Co2%, Ni 2.2%, TiC 0.25%, CrC 0.25%, VC 0.2%, Y 0.1%.

Embodiment four:

A kind of carbon tungsten roller ring prescription comprises following component, and the each component weight percent is: WC 93%, Co2.5%, Ni 4%, TiC 0.2%, CrC 0.2%, VC 0.05%, Y 0.05%.

Behind the good raw material powder of recipe configuration among the above embodiment, adopt the static pressure technological forming, the roller stock after the roughing carries out the high temperature pressure sintering processes in 1430～1490 ℃ of temperature ranges.

The above only is specific embodiments of the invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.

Claims

1. carbon tungsten roller ring prescription, it is characterized in that: comprise following component, the each component weight percent is: WC 93～98%, Co 1.5～5%, Ni 0～4%, TiC 0.2～0.3%, CrC 0.2～0.3%, VC0.05～0.3%, Y 0.05～0.1%.

2. a kind of carbon tungsten roller ring prescription as claimed in claim 1 is characterized in that: comprise following component, the each component weight percent is: WC 93%, Co 5%, Ni1%, TiC 0.3%, CrC 0.3%, VC 0.3%, Y 0.1%.

3. a kind of carbon tungsten roller ring prescription as claimed in claim 1 is characterized in that: comprise following component, the each component weight percent is: WC 98%, Co 1.5%, TiC 0.2%, CrC 0.2%, VC 0.05%, Y 0.05%.

4. a kind of carbon tungsten roller ring prescription as claimed in claim 1 is characterized in that: comprise following component, the each component weight percent is: WC 95%, Co 2%, Ni 2.2%, TiC 0.25%, CrC 0.25%, VC 0.2%, Y 0.1%.

5. a kind of carbon tungsten roller ring prescription as claimed in claim 1 is characterized in that: comprise following component, the each component weight percent is: WC 93%, Co 2.5%, Ni 4%, TiC 0.2%, CrC 0.2%, VC0.05%, Y 0.05%.