PL433145A1 - Gray cast iron for automotive castings and method of shaping the geometrical structure of the cast iron surface, in particular the surface of automotive castings made of this gray cast iron - Google Patents
Gray cast iron for automotive castings and method of shaping the geometrical structure of the cast iron surface, in particular the surface of automotive castings made of this gray cast ironInfo
- Publication number
- PL433145A1 PL433145A1 PL433145A PL43314520A PL433145A1 PL 433145 A1 PL433145 A1 PL 433145A1 PL 433145 A PL433145 A PL 433145A PL 43314520 A PL43314520 A PL 43314520A PL 433145 A1 PL433145 A1 PL 433145A1
- Authority
- PL
- Poland
- Prior art keywords
- cast iron
- gray cast
- automotive castings
- automotive
- shaping
- Prior art date
Links
- 229910001060 Gray iron Inorganic materials 0.000 title abstract 5
- 229910001018 Cast iron Inorganic materials 0.000 title abstract 4
- 238000005266 casting Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000007493 shaping process Methods 0.000 title abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract 2
- 239000011574 phosphorus Substances 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- 239000011593 sulfur Substances 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
Landscapes
- Heat Treatment Of Articles (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Przedmiotem zgłoszenia jest żeliwo szare na odlewy motoryzacyjne zawiera w składzie chemicznym od 3,7% mas. do 3,8% mas. węgla, 2 5% mas. krzemu, od 0,14% mas. do 0,15% mas. manganu, od 0,08% mas. do 0,50% mas. miedzi, od 0,07% mas. do 0,08% mas. fosforu, od 0,011% mas. do 0,014% mas. siarki oraz od 0,030% mas. Do 0,063% mas. Magnezu. Zgłoszenie obejmuje także sposób kształtowania struktury geometrycznej powierzchni żeliwa, zwłaszcza powierzchni odlewów motoryzacyjnych z żeliwa szarego określonego, który prowadzi się tak, że żeliwo szare o składzie chemicznym zawierającym od 3,7% mas. do 3,8% mas. węgla, 2,5% mas. krzemu, od 0,14% mas. do 0,15% mas. manganu, od 0,08% mas. do 0,50% mas. miedzi, od 0,07% mas. do 0,08% mas. fosforu, od 0,011% mas. do mas. siarki oraz od 0,030% mas. do 0,063% mas. magnezu w pierwszym etapie nagrzewa się do temperatury z zakresu od 790°C do 900°C z szybkością 300°C/h w piecu oporowym z regulatorem temperatury do kontrolowania szybkości nagrzewania. Po osiągnięciu tej temperatury w drugim etapie żeliwo wymraża się w ciekłym azocie przez 1 godzinę. W trzecim etapie powierzchnię żeliwa wytrawia się kwasem azotowym (V) do utworzenia kieszeni smarnych.The subject of the application is gray cast iron for automotive castings, its chemical composition is from 3.7% by mass. up to 3.8 wt.% carbon, 25 wt.% % silicon, from 0.14 wt.% up to 0.15 wt.% % manganese, from 0.08 wt. up to 0.50 wt.% % copper, from 0.07 wt.% up to 0.08 wt.% % phosphorus, from 0.011 wt. up to 0.014 wt.% % sulfur and from 0.030 wt.%. Up to 0.063 wt.% Magnesium. The application also covers a method of shaping the geometrical structure of the cast iron surface, in particular the surface of automotive castings of gray cast iron defined, which is carried out so that gray cast iron with a chemical composition of 3.7% by weight. up to 3.8 wt.% carbon, 2.5 wt.% % silicon, from 0.14 wt.% up to 0.15 wt.% % manganese, from 0.08 wt. up to 0.50 wt.% % copper, from 0.07 wt.% up to 0.08 wt.% % phosphorus, from 0.011 wt. to the masses % sulfur and from 0.030 wt.%. up to 0.063 wt.% In a first step, magnesium is heated to a temperature ranging from 790 ° C to 900 ° C at a rate of 300 ° C / h in a resistance furnace with a temperature controller to control the heating rate. After reaching this temperature, in the second stage, the cast iron is frozen in liquid nitrogen for 1 hour. In the third step, the cast iron surface is etched with nitric acid (V) to form lubricating pockets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL433145A PL240847B1 (en) | 2020-03-04 | 2020-03-04 | Gray cast iron for automotive castings and method of shaping the geometrical structure of the cast iron surface, in particular the surface of automotive castings made of this gray cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL433145A PL240847B1 (en) | 2020-03-04 | 2020-03-04 | Gray cast iron for automotive castings and method of shaping the geometrical structure of the cast iron surface, in particular the surface of automotive castings made of this gray cast iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL433145A1 true PL433145A1 (en) | 2021-09-06 |
| PL240847B1 PL240847B1 (en) | 2022-06-13 |
Family
ID=77662542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL433145A PL240847B1 (en) | 2020-03-04 | 2020-03-04 | Gray cast iron for automotive castings and method of shaping the geometrical structure of the cast iron surface, in particular the surface of automotive castings made of this gray cast iron |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL240847B1 (en) |
-
2020
- 2020-03-04 PL PL433145A patent/PL240847B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL240847B1 (en) | 2022-06-13 |
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