PL77208B2 - Paste for protecting steel during the nitriding process - Google Patents
Paste for protecting steel during the nitriding process Download PDFInfo
- Publication number
- PL77208B2 PL77208B2 PL16517273A PL16517273A PL77208B2 PL 77208 B2 PL77208 B2 PL 77208B2 PL 16517273 A PL16517273 A PL 16517273A PL 16517273 A PL16517273 A PL 16517273A PL 77208 B2 PL77208 B2 PL 77208B2
- Authority
- PL
- Poland
- Prior art keywords
- paste
- weight
- nitriding process
- steel during
- protecting steel
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 8
- 239000010959 steel Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 7
- 238000005121 nitriding Methods 0.000 title claims description 7
- 229920002050 silicone resin Polymers 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 5
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 229910000464 lead oxide Inorganic materials 0.000 claims description 4
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 4
- OZCMOJQQLBXBKI-UHFFFAOYSA-N 1-ethenoxy-2-methylpropane Chemical compound CC(C)COC=C OZCMOJQQLBXBKI-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Description
Pierwszenstwo: Zgloszenie ogloszono: 02.11.1974 Opis patentowy opublikowano: 31.07.1975 77208 KI. 18c,l/72 48b,H/16 MKP C21d 1/72 C23c 11/16 Twórcy wynalazku: Jerzy Baczewski, Danuta Kosmider-Luniewska, Jerzy iBirzeziniski Uprawniony z patentu tymczasowego: Instytut Mechaniki Precyzyjnej", Warszawa (Polska) Pasta do zabezpieczania stali w czasie procesu azotowania Przedmiotem wynalazku jest pasta do zabezpie¬ czania stali przed dyfuzja azotu w procesie azoto¬ wania. Powierzchnie zabezpieczone pasta pozostaja po procesie azotowania miekkie i nadaja sie do obróbki mechanicznej.Znana jest z brytyjskiego opisu patentowego nr 1179 850, pasta zawierajaca zwiazki boru z dodat¬ kiem tlenku glinu i krzemu. Pasta ta nie jest po¬ wszechnie stosowana ze wzgledu na wysoki koszt zwiazków boru jak i wlasnosci trujace.Przedmiotem wynalazku jest pasta do zabezpie¬ czania stali w czasie procesu azotowania, sklada¬ jaca sie z pylu cynowego, tlenku olowiu i tlenku chromu oraz spoiwa organicznego, takiego jak mo¬ dyfikowana zywica silikonowa. Pasta wedlug wy¬ nalazku zawiera korzystnie 25 do 70% wagowych pylu cynowego, 15 do 40% wagowych tlenku chro¬ mu i 1 do 2% wagowych tlenku olowiu oraz jako spoiwo zywice silikonowa w ilosci 5 do 10% wago¬ wych i kopolimer chlorku winylu z eterem izobu- tylowinylowym w ilosci 10 do 25% wagowych.W czasie procesu azotowania powstaje na po¬ wierzchni chronionej pasta warstewka ochronna, która dzieki siatce krzemowej powstalej z zywicy silikonowej, nie ma tendencji do splywania i utrzy¬ muje sie na scisle okreslonej powierzchni.Spoiwo organiczne zastosowane do pasty wedlug wynalazku stanowi zywica silikonowa z dodatkiem 26% roztworu kopolimeru chlorku winylu z eterem izobutylowinylowym lub z zywica poliestrowa, 30% 2 roztworem polistyrenu w ksylenie, zywica epoksy¬ dowa czy akrylowa. Jako rozpuszczalnik zastosowa¬ no ksylen lub toluen. Dodatek do zywicy silikono¬ wej polimeru z lancuchem weglowym umozliwilo 5 uzyskanie powloki dobrze przyczepnej do powierz¬ chni stali oraz o dobrych wlasnosciach mechanicz¬ nych, to jest odpornej na uderzenie, zarysowanie czy scieranie. Ponadto sklad pasty umozliwia wy¬ eliminowanie suszenia powlok w podwyzszonej 10 temperaturze, jak równiez skrócenie czasu schnie¬ cia pokrycia w temperaturze 20°C.Dodatek tlenku chromu pozwala na wyelimino¬ wanie srodków zapobiegajacych osadzaniu wypel¬ niaczy. Jako wypelniacze mozna stosowac miesza- 15 nine cyny i niklu w stosunku 2:1. Paste wedlug wynalazku mozna nakladac pedzlem lub pistole¬ tem, przy czym grubosc powloki zalezy od czasu trwania procesu azotowania. 20 Przyklad. Pyl cynowy w ilosci 45% wago¬ wych, tlenek olowiu w ilosci lo/0 wagowych i tle¬ nek chromu w ilosci 30% wagowych zmieszano wstepnie, a nastepnie homogenizowano z zywica silikonowa z dodatkiem 30% roztworu ksylenowe- 25 go polistyrenu, zmieszanych w stosunku 1 :2.Wszystkie skladniki ucierano w mlynie kulowym..Otrzymana paste naniesiono po uprzednim roz¬ cienczeniu na dokladnie odtluszczona powierzchnie stalowa. Otrzymana powloka zapewnila skuteczna 30 ochrone stali przed dyfuzja azotu. 77 20877 208 3 4 PLPriority: Application announced: 02/11/1974 Patent description was published: 07/31/1975 77208 KI. 18c, l / 72 48b, H / 16 MKP C21d 1/72 C23c 11/16 Inventors: Jerzy Baczewski, Danuta Kosmider-Luniewska, Jerzy iBirzeziniski Authorized by a temporary patent: Instytut Mechaniki Precyzyjnej ", Warsaw (Poland) Paste for securing steel The subject of the invention is a paste for the protection of steel against nitrogen diffusion in the nitriding process. The surfaces protected with the paste remain soft after the nitriding process and are suitable for mechanical treatment. It is known from British Patent Specification No. 1,179,850, a paste containing compounds Boron with the addition of aluminum oxide and silicon. This paste is not widely used due to the high cost of boron compounds and its poisonous properties. The invention relates to a paste for protecting steel during the nitriding process, consisting of a dust of tin, lead and chromium oxide, and an organic binder such as a modified silicone resin The paste according to the invention preferably comprises 25 to 70% by weight of tin dust, 15 to 40% by weight of chromium oxide and 1 to 2% by weight of lead oxide and, as a binder, a silicone resin in the amount of 5 to 10% by weight, and a copolymer of vinyl chloride with isobutyl vinyl ether in the amount of 10 to 25% During the nitriding process, a protective layer is formed on the surface to be protected with a paste, which, thanks to the silicon mesh made of a silicone resin, does not tend to run off and remains on a precisely defined surface. The organic binder used for the paste according to the invention is a silicone resin. with the addition of a 26% solution of vinyl chloride copolymer with isobutyl vinyl ether or polyester resin, 30% solution of polystyrene in xylene, epoxy or acrylic resin. Xylene or toluene was used as the solvent. The addition of a polymer with a carbon chain to the silicone resin made it possible to obtain a coating with good adhesion to the steel surface and with good mechanical properties, i.e. resistant to impact, scratching and abrasion. Moreover, the composition of the paste makes it possible to eliminate the drying of the coatings at an elevated temperature, as well as to shorten the drying time of the coating at a temperature of 20 ° C. The addition of chromium oxide makes it possible to eliminate agents preventing the build-up of fillers. A mixture of tin and nickel in the ratio of 2: 1 can be used as fillers. The pastes according to the invention can be applied with a brush or with a gun, the thickness of the coating depending on the duration of the nitriding process. 20 Example. Tin dust 45% by weight, lead oxide in the amount of 0% by weight and chromium oxide in the amount of 30% by weight were premixed, and then homogenized with the silicone resin with the addition of 30% xylene polystyrene solution mixed in ratio 1: 2. All ingredients were grinded in a ball mill. The resulting paste was spread after dilution on a thoroughly degreased steel surface. The obtained coating ensured effective protection of the steel against nitrogen diffusion. 77 20 877 208 3 4 PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16517273A PL77208B2 (en) | 1973-09-12 | 1973-09-12 | Paste for protecting steel during the nitriding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16517273A PL77208B2 (en) | 1973-09-12 | 1973-09-12 | Paste for protecting steel during the nitriding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL77208B2 true PL77208B2 (en) | 1975-04-30 |
Family
ID=19964049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL16517273A PL77208B2 (en) | 1973-09-12 | 1973-09-12 | Paste for protecting steel during the nitriding process |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL77208B2 (en) |
-
1973
- 1973-09-12 PL PL16517273A patent/PL77208B2/en unknown
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