US1503443A - Process and material for preparing metal for coating - Google Patents
Process and material for preparing metal for coating Download PDFInfo
- Publication number
- US1503443A US1503443A US614044A US61404423A US1503443A US 1503443 A US1503443 A US 1503443A US 614044 A US614044 A US 614044A US 61404423 A US61404423 A US 61404423A US 1503443 A US1503443 A US 1503443A
- Authority
- US
- United States
- Prior art keywords
- metal
- admixture
- action
- alcohol
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title description 17
- 239000002184 metal Substances 0.000 title description 17
- 238000000034 method Methods 0.000 title description 9
- 239000000463 material Substances 0.000 title description 7
- 238000000576 coating method Methods 0.000 title description 3
- 239000011248 coating agent Substances 0.000 title description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 235000019441 ethanol Nutrition 0.000 description 8
- 239000001488 sodium phosphate Substances 0.000 description 8
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 7
- 235000019801 trisodium phosphate Nutrition 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- -1 hydroxyl ions Chemical class 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
Definitions
- This invention relates to the cleaning of surfaces and although it may be used to advantage in plating operations and washing dishes, yet it is particularly directed to the preparation of metal for painting.
- One object of the invention is to provide an improved material and process for removing oily coatings to produce a desirable surface. 7
- the metal to be plated or painted is treated with a hot aqueous solution containing free hydroxyl ions to remove the oily materials and in some cases the metal is washed with water to remove the excess solution before the coatin is applied.
- I have d hydroxyl bath may be greatly improved by the addition of an alcohol which boils at a higher temperature than ethyl alcohol, such for instance as amyl or butyl alcohol.
- an alcohol which boils at a higher temperature than ethyl alcohol such for instance as amyl or butyl alcohol.
- ccording to m invention I provide a wash or bath conslsting of water in which is dissolved a material to generate hydroxyl ions such as trisodium phosphate and in addition an alcohol of relative high boilin point such for instance as butyl alcoho Although the proportions used may be varied to a great extent, I find the following proportions satisfactory:
- Trisodium phosphate 1.00 pound Water 4.00 gallons Butyl alcohol .20 gallon consistsin treating the metal with the aboyedescribed admixture either hot or cold. After the work has been made as clean as iscovered that the action of the Application filed January 20, 1928. Serial No. 614,044.
- tionsr- In case the Work is to be painted after treatment with my bath, it may .be allowed to dry, or it may be washed in water and then allowed to dry, but if it is first washed in a dilute acid and then washed in water and allowed to dry, the acid neutralizes every trace of alkali so that none remains on the Work to act on the paint and shorten its life. Although almost any acid can be used for this purpose, phosphoric acid produces the best results when the metal is iron or steel because it does not tend to cause the metal to rust. This acid may be used in the following proportions:
- the method of cleaning metal consisting in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate.
- the method of cleaning metal consisting in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate and then washing the metal in water.
- the method of cleaning metal consisting in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate and then to the action of a dilute acid.
- the method of cleaning metal consisting. in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate, then to the action of a dilute acid, and then to the action of water.
- a composition of matter for cleaning surfaces consisting of an admixture con- 1 metal consisting of an admixture comprising an alkali metal compound and butyl alcohol.
- composition of matter for cleaning metal consisting of an admixture comprising trisodium phosphate and butyl alcohol.
- composition of matter for cleaning metal consisting of an admixture comprising basic sodium phosphate and alcohol.
Description
PATENT OFFICE.
I'm H. GRAYELL, OF ELKINS PARK, PENNSYLVANIA.
PROCESS AND MATERIAL FOR PREPARING METAL FOR C(lATING.
2N0 Drawing.
To all whom it may concern;
Be it known that I, JAMES H. Gmvann,
- a citizen of the United States, residing at Elkins Park, in the county of Montgomery and State of Pennsylvania, have invented a new and useful Process and Material for Preparing Metal for Coating, of which the following is a specification.
This invention relates to the cleaning of surfaces and although it may be used to advantage in plating operations and washing dishes, yet it is particularly directed to the preparation of metal for painting.
One object of the invention is to provide an improved material and process for removing oily coatings to produce a desirable surface. 7
According to the present practice the metal to be plated or painted is treated with a hot aqueous solution containing free hydroxyl ions to remove the oily materials and in some cases the metal is washed with water to remove the excess solution before the coatin is applied.
I have d hydroxyl bath may be greatly improved by the addition of an alcohol which boils at a higher temperature than ethyl alcohol, such for instance as amyl or butyl alcohol. I prefer to use butyl alcohol due to its lack of objectionable odor and I will describe the invention in connection with that material but I wish it understood that other alcohols ma be used as equivalents.
ccording to m invention I provide a wash or bath conslsting of water in which is dissolved a material to generate hydroxyl ions such as trisodium phosphate and in addition an alcohol of relative high boilin point such for instance as butyl alcoho Although the proportions used may be varied to a great extent, I find the following proportions satisfactory:
Trisodium phosphate 1.00 pound Water 4.00 gallons Butyl alcohol .20 gallon consistsin treating the metal with the aboyedescribed admixture either hot or cold. After the work has been made as clean as iscovered that the action of the Application filed January 20, 1928. Serial No. 614,044.
desired, it is ready for subsequent opera-.
tionsr- In case the Work is to be painted after treatment with my bath, it may .be allowed to dry, or it may be washed in water and then allowed to dry, but if it is first washed in a dilute acid and then washed in water and allowed to dry, the acid neutralizes every trace of alkali so that none remains on the Work to act on the paint and shorten its life. Although almost any acid can be used for this purpose, phosphoric acid produces the best results when the metal is iron or steel because it does not tend to cause the metal to rust. This acid may be used in the following proportions:
Phosphoric acid 1 pound Water 100 gallons The addition of the higher alcohol to the alkali bath or wash greatly improves it in that it removes oil and dirt quicker and may be operated at a lower temperature; in
' many cases room temperatures produce satisfactory results. The acid bath or wash prevents any alkali from remaining on the work with the result that the paint adheres better and lasts longer than when no acid bath is used.
The benefit of the doctrine of equivalents as applied in chemical cases is reserved and the invention is not limited to mere matters of form or otherwise than as the prior art and the appended claims may require.
I claim:
1. The method of cleaning metal consisting in subjectin it to the action of an alkali metal compoun in the presence of an alcohol which boils at a higher temperature than ethyl alcohol.
2. The method of cleaning metal consisting in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate.
3. The method of cleaning metal consisting in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate and then washing the metal in water.
4. The method of cleaning metal consisting in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate and then to the action of a dilute acid.
5. The method of cleaning metal consisting. in subjecting it to the action of an admixture comprising butyl alcohol and trisodium phosphate, then to the action of a dilute acid, and then to the action of water. 6. A composition of matter for cleaning surfaces consisting of an admixture con- 1 metal consisting of an admixture comprising an alkali metal compound and butyl alcohol.
8. A composition of matter for cleaning metal consisting of an admixture comprising trisodium phosphate and butyl alcohol.
9. A composition of matter for cleaning metal consisting of an admixture comprising basic sodium phosphate and alcohol.
JS H. GRAVELL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US614044A US1503443A (en) | 1923-01-20 | 1923-01-20 | Process and material for preparing metal for coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US614044A US1503443A (en) | 1923-01-20 | 1923-01-20 | Process and material for preparing metal for coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1503443A true US1503443A (en) | 1924-07-29 |
Family
ID=24459654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US614044A Expired - Lifetime US1503443A (en) | 1923-01-20 | 1923-01-20 | Process and material for preparing metal for coating |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1503443A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3000829A (en) * | 1958-06-12 | 1961-09-19 | Purex Corp Ltd | Composition and process for descaling metal parts |
| US3034933A (en) * | 1956-07-23 | 1962-05-15 | Parker Rust Proof Co | Method and means for treating metallic surfaces bearing protective coatings |
| DE1154951B (en) * | 1959-03-17 | 1963-09-26 | Saint Gobain | Device for measuring the thickness of a transparent plate |
| US3135632A (en) * | 1957-05-24 | 1964-06-02 | William R Lucas | Method of protecting ferrous metal surfaces from rerusting |
-
1923
- 1923-01-20 US US614044A patent/US1503443A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3034933A (en) * | 1956-07-23 | 1962-05-15 | Parker Rust Proof Co | Method and means for treating metallic surfaces bearing protective coatings |
| US3135632A (en) * | 1957-05-24 | 1964-06-02 | William R Lucas | Method of protecting ferrous metal surfaces from rerusting |
| US3000829A (en) * | 1958-06-12 | 1961-09-19 | Purex Corp Ltd | Composition and process for descaling metal parts |
| DE1154951B (en) * | 1959-03-17 | 1963-09-26 | Saint Gobain | Device for measuring the thickness of a transparent plate |
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