US3492178A - Blade sharpening solution and process - Google Patents
Blade sharpening solution and process Download PDFInfo
- Publication number
- US3492178A US3492178A US577831A US3492178DA US3492178A US 3492178 A US3492178 A US 3492178A US 577831 A US577831 A US 577831A US 3492178D A US3492178D A US 3492178DA US 3492178 A US3492178 A US 3492178A
- Authority
- US
- United States
- Prior art keywords
- solution
- blade
- percent
- sharpening
- container
- 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
- 238000000034 method Methods 0.000 title description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 238000005530 etching Methods 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- GXGAKHNRMVGRPK-UHFFFAOYSA-N dimagnesium;dioxido-bis[[oxido(oxo)silyl]oxy]silane Chemical compound [Mg+2].[Mg+2].[O-][Si](=O)O[Si]([O-])([O-])O[Si]([O-])=O GXGAKHNRMVGRPK-UHFFFAOYSA-N 0.000 description 5
- 239000000391 magnesium silicate Substances 0.000 description 5
- 229940099273 magnesium trisilicate Drugs 0.000 description 5
- 229910000386 magnesium trisilicate Inorganic materials 0.000 description 5
- 235000019793 magnesium trisilicate Nutrition 0.000 description 5
- 235000011149 sulphuric acid Nutrition 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000000347 magnesium hydroxide Substances 0.000 description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 4
- 239000001117 sulphuric acid Substances 0.000 description 4
- 235000002864 food coloring agent Nutrition 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000576 food coloring agent Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229960000869 magnesium oxide Drugs 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/06—Sharpening files
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/28—Acidic compositions for etching iron group metals
Definitions
- the present invention relates to a blade sharpening process and solution, and it relates more particularly to an improved etching process and solution for sharpening stainless steel and other razor blades; as well :as the blades of electric razors.
- etching solution and process of the invention finds particular utility in sharpening razor blades, especially those of the stainless steel variety. It will become evident as the present description proceeds, however, that the process and solution of the invention finds general utility in the sharpening of blades by etching means.
- a container of a particular etching solution is provided.
- a used blade is placed in the container and completely immersed therein.
- the blade is removed a predetermined time thereafter, washed and dried.
- the blade is thereby resharpened and again ready for use.
- a specific example of a blade sharpening solution which may be used satisfactorily in practicing the invention, particularly in conjunction with stainless steel razor blades, is as follows:
- the blade In order to sharpen a used stainless steel .(SAE 300 series) razor blade, for example, the blade is placed in a container of the solution, and the container is covered. The container is turned upside down completely to immerse the blade. The blade is left in the solution for a ice predetermined time interval of the order of 5 to 15 minutes. The blade is then removed, washed in hot water and soaked, and dried. The blade is then ready for re-use.
- SAE 300 series stainless steel .
- the chromic and sulphuric acids in the solution set out above combine to provide a desired etching action on the blade over a practical time interval, so as to sharpen the cutting edge of the blade without destroying the entire blade.
- the magnesium and aluminum hydroxide serve to counteract the etching action of the acids, so that the desired controlled etching action may be obtained.
- the calcium carbonate and the magnesium trisilicate also perform similar functions.
- the K Kelite is a brightener made by the Kelite Company of Los Angeles, California. As mentioned above, this brightener consists of fluorinated hydrocarbon plus phosphate iron. The purpose of the brightener is to impart a clear, bright finish to the sharpened blade. Of course, any appropriate brightener can be used for the purpose.
- the artificial coloring is used in the solution merely to impart an attractive color thereto.
- a blue food coloring may be used to cause the solution to attain an overall attractive pink coloration.
- ingredients of the solution themselves may be varied and other known etchants and dilutants may be used.
- a process for sharpening the cutting edge of a stainless steel razor blade of SAE 300 series which comprises providing an etching solution including essentially ten percent chromic acid, fifteen percent sulphuric acid, fifteen percent magnesium hydroxide, fifteen percent aluminum hydroxide, three percent calcium carbonate, two percent magnesium trisilicate; completely immersing said blade in said etching solution; subsequently removing the blade from the solution and washing and then drying the blade.
- a solution for sharpening the cutting edge of a stainless steel razor blade SAE Series 300 which comprises essentially ten percent chromic acid, fifteen percent sulphuric acid, fifteen percent magnesium hydroxide, fifteen percent aluminum hydroxide, three percent calcium carbonate, and two percent magnesium trisilicate.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Description
United States Patent 3,492,178 BLADE SHARPENIN G SOLUTION AND PROCESS Wayne A. Westling, 794 27th St., Manhattan Beach, Calif. 90266 No Drawing. Filed Sept. 8, 1966, Ser. No. 577,831 Int. Cl. C23b 3/00; C23f l/00 U.S. Cl. 156-18 6 Claims ABSTRACT OF THE DISCLOSURE A sharpening process for razor blades is provided, whereby the blade is merely inserted into a particular etching solution, and is subsequently removed, washed and dried.
The present invention relates to a blade sharpening process and solution, and it relates more particularly to an improved etching process and solution for sharpening stainless steel and other razor blades; as well :as the blades of electric razors.
The etching solution and process of the invention finds particular utility in sharpening razor blades, especially those of the stainless steel variety. It will become evident as the present description proceeds, however, that the process and solution of the invention finds general utility in the sharpening of blades by etching means.
In practicing the present invention, in one of its aspects, a container of a particular etching solution is provided. A used blade is placed in the container and completely immersed therein. The blade is removed a predetermined time thereafter, washed and dried. The blade is thereby resharpened and again ready for use.
A specific example of a blade sharpening solution, which may be used satisfactorily in practicing the invention, particularly in conjunction with stainless steel razor blades, is as follows:
10% chromic acid 15% sulphuric acid 15% magnesium hydroxide 15 aluminum hydroxide 3% calcium carbonate 2 magnesium trisilicate process K Kelite which is a brightening agent consisting of fluorinated hydrocarbon plus phosphate iron 34% distilled water 1% artificial coloring The solution is mixed, for example, at a controlled temperature of 82 F. The procedure is as follows:
(a) Mix together the calcium carbonate, magnesium trisilicate, magnesium hydroxide and aluminum hydroxide. These may be placed in a container, covered and mixed for twenty minutes by rotating the container at 35 r.p.m.
(b) The sulphuric acid is then added. The container may again be covered and mixed for five minutes by rotating it at 20 r.p.m.
(c) The chromic acid and processed K Kelite are then added to the solution. The container may again be covered and mixed for five minutes by rotating it at ten r.p.m.
(d) The distilled water is then added to the solution, and the solution is shaken until it is aerated (about ten minutes).
(e) The artificial coloring is added, and the resulting solution is strained.
In order to sharpen a used stainless steel .(SAE 300 series) razor blade, for example, the blade is placed in a container of the solution, and the container is covered. The container is turned upside down completely to immerse the blade. The blade is left in the solution for a ice predetermined time interval of the order of 5 to 15 minutes. The blade is then removed, washed in hot water and soaked, and dried. The blade is then ready for re-use.
The chromic and sulphuric acids in the solution set out above combine to provide a desired etching action on the blade over a practical time interval, so as to sharpen the cutting edge of the blade without destroying the entire blade. The magnesium and aluminum hydroxide serve to counteract the etching action of the acids, so that the desired controlled etching action may be obtained. The calcium carbonate and the magnesium trisilicate also perform similar functions.
The K Kelite is a brightener made by the Kelite Company of Los Angeles, California. As mentioned above, this brightener consists of fluorinated hydrocarbon plus phosphate iron. The purpose of the brightener is to impart a clear, bright finish to the sharpened blade. Of course, any appropriate brightener can be used for the purpose.
The artificial coloring is used in the solution merely to impart an attractive color thereto. For example, a blue food coloring may be used to cause the solution to attain an overall attractive pink coloration.
The proportions listed for the various components of the specific solution set out above are not critical and may be varied depending upon the material of the blade to be sharpened and the time desired to perform the sharpening operation.
Moreover, the ingredients of the solution themselves may be varied and other known etchants and dilutants may be used.
It will be appreciated, therefore, that while a particular embodiment of the invention has been described, modifications may be made. Such modifications are intended to be covered by the following claims.
What is claimed is:
1. A process for sharpening the cutting edge of a stainless steel razor blade of SAE 300 series which comprises providing an etching solution including essentially ten percent chromic acid, fifteen percent sulphuric acid, fifteen percent magnesium hydroxide, fifteen percent aluminum hydroxide, three percent calcium carbonate, two percent magnesium trisilicate; completely immersing said blade in said etching solution; subsequently removing the blade from the solution and washing and then drying the blade.
2. The process defined in claim 1, in which said solution further includes thirty-four percent distilled water.
3. The process defined in claim 1, in which said solution further includes five percent brightener consisting of fluorinated hydrocarbon plus phosphate iron.
4. A solution for sharpening the cutting edge of a stainless steel razor blade SAE Series 300, which comprises essentially ten percent chromic acid, fifteen percent sulphuric acid, fifteen percent magnesium hydroxide, fifteen percent aluminum hydroxide, three percent calcium carbonate, and two percent magnesium trisilicate.
5. The solution defined in claim 4, and which further includes thirty-four percent distilled water.
6. The solution defined in claim 4, in which said solution further includes five percent brightener consisting of fluorinated hydrocarbon plus phosphate iron.
References Cited UNITED STATES PATENTS 7/ 1946 Truesdell 15 618 X 5/ 1941 Wallach et al.
JACOB H. STEINBERG, Primary Examiner
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57783166A | 1966-09-08 | 1966-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3492178A true US3492178A (en) | 1970-01-27 |
Family
ID=24310332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US577831A Expired - Lifetime US3492178A (en) | 1966-09-08 | 1966-09-08 | Blade sharpening solution and process |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3492178A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019607A1 (en) * | 1979-05-14 | 1980-11-26 | Jean-Marie Louys | Process for sharpening or grinding blades |
| US4584999A (en) * | 1981-07-14 | 1986-04-29 | Arnegger Richard E | Saw blade with shallow section |
| WO1996018510A1 (en) * | 1994-12-15 | 1996-06-20 | Tumminaro Anthony J Jr | Solution and process for chemically resharpening smoothing tools, forming tools, and cutting tools |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2405101A (en) * | 1944-01-01 | 1946-07-30 | Fred Everett Howell | Method of reconditioning files |
| US2555214A (en) * | 1948-02-04 | 1951-05-29 | Associated Dev & Res Corp | Method of producing glass razor blades and product thereof |
-
1966
- 1966-09-08 US US577831A patent/US3492178A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2405101A (en) * | 1944-01-01 | 1946-07-30 | Fred Everett Howell | Method of reconditioning files |
| US2555214A (en) * | 1948-02-04 | 1951-05-29 | Associated Dev & Res Corp | Method of producing glass razor blades and product thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019607A1 (en) * | 1979-05-14 | 1980-11-26 | Jean-Marie Louys | Process for sharpening or grinding blades |
| US4584999A (en) * | 1981-07-14 | 1986-04-29 | Arnegger Richard E | Saw blade with shallow section |
| US5616255A (en) * | 1993-10-12 | 1997-04-01 | Tumminaro, Jr.; Anthony J. | Solution and process for chemically resharpening smoothing tools, forming tools, and cutting tools |
| WO1996018510A1 (en) * | 1994-12-15 | 1996-06-20 | Tumminaro Anthony J Jr | Solution and process for chemically resharpening smoothing tools, forming tools, and cutting tools |
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