PL114712B2 - Tool chromium-molybdenum steel intended for rolls for cold rolling - Google Patents
Tool chromium-molybdenum steel intended for rolls for cold rolling Download PDFInfo
- Publication number
- PL114712B2 PL114712B2 PL21528279A PL21528279A PL114712B2 PL 114712 B2 PL114712 B2 PL 114712B2 PL 21528279 A PL21528279 A PL 21528279A PL 21528279 A PL21528279 A PL 21528279A PL 114712 B2 PL114712 B2 PL 114712B2
- Authority
- PL
- Poland
- Prior art keywords
- chromium
- rolls
- tool
- cold rolling
- molybdenum steel
- Prior art date
Links
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 title claims description 3
- 229910000831 Steel Inorganic materials 0.000 title description 6
- 239000010959 steel Substances 0.000 title description 6
- 238000005097 cold rolling Methods 0.000 title description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910001315 Tool steel Inorganic materials 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000005336 cracking Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Description
Przedmiotem wynalazku jest stal narzedziowa chro¬ mowo-molibdenowa przeznaczona na walce hartowane do walcowania na zimno tasm i/lub blach.Znane stale narzedziowe chromowo-molibdenowe przeznaczone na walce hartowane do walcowania na zimno tasm i/lub blach, sa stalami zawierajacymi okolo 0.80% C, od 1,40 do 2,00%. Cr i od 0,20 do 0,50% Mo.Przykladowo, stal w gatunku NC7VL zawiera wedlug normy BN-68/0631-03 wagowo C od 0,75 do 0,85%, Mn od 0,20 do 0,40%,Si od 0,20 do 0,40%, P do 0,03%, S do 0,03%, Cr od 1,70do 2,00%, Ni do 0,30%, Cu do 0,25%, V od 0,10 do 0,20% i Mo od 0,20 do 0,30%, a stal wedlug zgloszenia patentowego nr P. 215283 zawiera wagowo: C od 0,70 do 0,80%, Mn od 0,20 do 0,40%, Si od 0,70 do 1,00%, P do 0,03%, S do 0,03%, Cr od 1,40 do 1,70%, Ni do 0,40%, Cu do 0,25%, V od 0,10 do 0,20% i Mo od 0,40 do 0,50%.Celem wynalazku jest zwiekszenie odpornosci walców na pekanie i odpryskiwanie warstwy powierzchniowej beczki, droga zmiany skladu chemicznego stali.Stal spelniajaca te warunki zawiera wedlug wynalazku wagowo: C od 0,65 do 0,75%, Mn od 0,20do 0,40%, Si od 0,70 do 1,00%, P do 0,03%, S do 0,03%, Cr od 1.10 do 1,40%, Ni od 0,90 do 1.10%, Cu do 0.25%, Vod 0,10 do 0,20% i Mo od 0,30 do 0,40%.Przyklad. Ze stali zawierajacej wagowo: 0,71% C 0,31% Mn, 0,88% Si, 0,017% P, 0,018% S, 1,22% Cr. 1,00% Ni, 0,04% Cu, 0,15% V i 0,31% Mo wykonano walce robocze o srednicy beczki 415mm. Po zahartowa¬ niu otrzymano na powierzchni beczki twardosc 62HRC.Walce zastosowano do walcowania na zimno blach stalowych.Zastrzezenie patentowe Stal narzedziowa chromowo-molibdenowa przezna¬ czona na walce hartowane do walcowaniana zimnotasm i blach zawierajaca wagowo: C od 0,65 do 0,75%, Mn od 0,20 do 0,40%, Si od 0,70 do 1,00%, P do 0.03%. S do 0,03%, Cu do 0,25%, V od 0,10 do 0,20%, Mo od 0.30do 0,40%, znamienna tym, ze zawiera wagowo: Ni od 0,90do 1,10% i Cr od 1,10 do 1,40%;. PL
Claims (1)
1. Zastrzezenie patentowe Stal narzedziowa chromowo-molibdenowa przezna¬ czona na walce hartowane do walcowaniana zimnotasm i blach zawierajaca wagowo: C od 0,65 do 0,75%, Mn od 0,20 do 0,40%, Si od 0,70 do 1,00%, P do 0.03%. S do 0,03%, Cu do 0,25%, V od 0,10 do 0,20%, Mo od 0.30do 0,40%, znamienna tym, ze zawiera wagowo: Ni od 0,90do 1,10% i Cr od 1,10 do 1,40%;. PL
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL21528279A PL114712B2 (en) | 1979-04-28 | 1979-04-28 | Tool chromium-molybdenum steel intended for rolls for cold rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL21528279A PL114712B2 (en) | 1979-04-28 | 1979-04-28 | Tool chromium-molybdenum steel intended for rolls for cold rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL215282A2 PL215282A2 (pl) | 1980-04-08 |
| PL114712B2 true PL114712B2 (en) | 1981-02-28 |
Family
ID=19996017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL21528279A PL114712B2 (en) | 1979-04-28 | 1979-04-28 | Tool chromium-molybdenum steel intended for rolls for cold rolling |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL114712B2 (pl) |
-
1979
- 1979-04-28 PL PL21528279A patent/PL114712B2/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL215282A2 (pl) | 1980-04-08 |
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