TPT January 2013

Article

Material of roll, shaped method

Straightening number after worn 1mm at radial of roll

X155CrVMo121 forging roll

10,000 ton

SDSF High chromium alloy roll

12,000 ton

Table 4 : Comparison of wear resistance for heat straightening

Material of roll, shaped method

Straightening number after worn 1mm at radial of roll

X165CrMoV12KU forging roll

19,000 piece

9Cr2Mo forging roll

13,000 piece

SDSF High chromium alloy roll

38,200 piece

Table 5 : Comparison of wear resistance for cold straightening

No.

A

B

C

D

E

SDSF High chromium alloy

SDSF High chromium alloy

Material

X155CrVMo121

D2

SKD11

Tempering for eliminating stress Quenching, tempering

State

Quenching, tempering Quenching, tempering Quenching, tempering

Table 6 : The material number of wear resistance testing in the laboratory

Testing result:

subject”, persisting in taking the researching principle of “never copy, attaching great importance to innovate and stride”, adopting the researching method of “researching production process must be combined with researching equipment”, persisting in taking the aim of “international advanced level and innovating China’s national brand” are our some realisation for successfully researching and developing new roll replaced forging by casting under the pressure of heated market competition day by day of late twenty years.

Abrasion volume (mm 3 ) Average abrasion volume (mm 3 ) Figure 4 : Abrasion volume of material

References

[1] Huang Qingxue, Shen Guangbin, Liang Aisheng, Chen Zhanfu “Study and application on mill bearing and roll life” Beijing: metallurgy industry publishing house, 2003 [2] Shao Shuncai, “Centrifugal casting roll technology, technical innovation and development” 2008 international symposium on roll manufacturing and application [3] SunZeji and so on “developing and application of casting roll for cold rolling process” 2008, international symposium on manufacturing and application of roll [4] Fu Hanguang and so on “manufacturing technology of high speed steel roll” Beijing: metallurgy industry publishing house, 2006.1

Material

Shandong Province SiFang Technical Development Co Ltd – China

Email: sdsf@vip.163.com Website: www. cnsdsf.com

Material

Figure 5 : Average abrasion volume of material

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January 2013