US506446A - Albert schmitz - Google Patents
Albert schmitz Download PDFInfo
- Publication number
- US506446A US506446A US506446DA US506446A US 506446 A US506446 A US 506446A US 506446D A US506446D A US 506446DA US 506446 A US506446 A US 506446A
- Authority
- US
- United States
- Prior art keywords
- hardening
- plates
- albert
- schmitz
- exposed
- 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
- 238000000137 annealing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000003303 reheating Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000000826 Nictitating Membrane Anatomy 0.000 description 2
- 235000017423 hawthorn Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
Definitions
- This invention refers to a process forimproving the quality of steel armor plates consistin g in the combination of the three following operations in the order indicated: first, hardening the plates by immersing the whole plates in oil, water, or other media, after haw ing previously raised them to a temperature at which the molecules have acquired the ca pability of ready re-arrangement; secondly, annealing the plates at a temperature which is as high as possible without however reaching the temperature at which said capability of ready re arrangement begins; thirdly, hardening the plates on one side or face at the same or at a lower temperature than that specified in the preceding or second operation.
- process For this maybe carried outalso ina simplified manner, consisting in substituting thev first operation of chilling the whole mass of the plates, by chilling only the side or face of the plate, which is not to be exposed to-projectiles, then glowing the whole mass of the plate and finally hardening by chilling the side or face of the plate whichis to be exposed to projectiles.
- the subsequent'hardening of both sides of the plate and by the intervening reheating between the two hardening operations exactly the sa'me properties are given in the case of thinner plates, to the main mass of the latter, while the central layer of the metal of very thick platesdoes not receive these excellentproperties in a quite perfect degree.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Golf Clubs (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
Description
UNITED STATES PATENT OFFICEQ ALBERT SOHMITZ, OF ESSEN, GERMANY, ASSIGNOR TO THE FIRM OF FRIED. KRUPP, OF SAME PLACE.
plate not exposed to the projectile.
PROCESS OF IMPROVING THE QUALITY OF STEEL ARMOR-PLATES.
SPECIFICATION forming part of Letters Patent No. 506,446, dated October 10, 1893 Application filedMay 6, 1893. Serial No. 473,266. (No specimens.)
To all whom it may concern:
Be it known that I, ALBERT ScHMrrz, a subj ect of the King of Prussia, residing at Essen, in the Kingdom of Prussia, Germany, have invented a new and useful Process for Improving the Quality of Steel Armor-Plates, of which the following is a specification.
This invention refers to a process forimproving the quality of steel armor plates consistin g in the combination of the three following operations in the order indicated: first, hardening the plates by immersing the whole plates in oil, water, or other media, after haw ing previously raised them to a temperature at which the molecules have acquired the ca pability of ready re-arrangement; secondly, annealing the plates at a temperature which is as high as possible without however reaching the temperature at which said capability of ready re arrangement begins; thirdly, hardening the plates on one side or face at the same or at a lower temperature than that specified in the preceding or second operation.
In order to avoid great deviations fromthe form desired to be given to the plates through invention consists in interposingbetween the second operation of annealing and the last operation afurther new operation, namely the hardening of the dead or false sidevof the hardening the annealing heat'may be used. By this interposed operation, the hardening efiect of which is nullified or destroyed by the heating of the last operation, the plate the finished hardened plate corresponds with the form before the commencement of the operations. For the same purpose the, process For this maybe carried outalso ina simplified manner, consisting in substituting thev first operation of chilling the whole mass of the plates, by chilling only the side or face of the plate, which is not to be exposed to-projectiles, then glowing the whole mass of the plate and finally hardening by chilling the side or face of the plate whichis to be exposed to projectiles. -By the subsequent'hardening of both sides of the plate and by the intervening reheating between the two hardening operations exactly the sa'me properties are given in the case of thinner plates, to the main mass of the latter, while the central layer of the metal of very thick platesdoes not receive these excellentproperties in a quite perfect degree.
.one sid'e, consisting in first hardening the plates throughout their entire mass by chilling,then annealing in their entire mass, then hardening the side not to-be exposed to the action of projecti1es,and finally after reheat ing again hardening by'chilliug the side or face to be exposed to P jectiles, substantially as set forth. I
-2. Aprocess for hardening armorplates on one side, consisting in first hardening the; plates by chilling on the side not to be exposed to the action of projectiles, then annealing the plates in their entire mass," and finally again hardening the plates on the side to be exposed toprojectiles by chilling,,substantially as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
ALBERT SCHMlTZ.
Witnesses:
j MAX UHLENHAUT,
ALBERT KLINGHAMMER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US506446A true US506446A (en) | 1893-10-10 |
Family
ID=2575280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US506446D Expired - Lifetime US506446A (en) | Albert schmitz |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US506446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070204702A1 (en) * | 2003-12-04 | 2007-09-06 | Chris Melcer | Method and apparatus for pressure and mix ratio control |
-
0
- US US506446D patent/US506446A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070204702A1 (en) * | 2003-12-04 | 2007-09-06 | Chris Melcer | Method and apparatus for pressure and mix ratio control |
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