GB911626A - Improvements in ploughshares - Google Patents
Improvements in ploughsharesInfo
- Publication number
- GB911626A GB911626A GB274158A GB274158A GB911626A GB 911626 A GB911626 A GB 911626A GB 274158 A GB274158 A GB 274158A GB 274158 A GB274158 A GB 274158A GB 911626 A GB911626 A GB 911626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- temperature
- ploughshare
- heat treatment
- nickel
- 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
Links
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
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)
- Heat Treatment Of Articles (AREA)
Abstract
911,626. Making ploughshares. RANSOMES, SIMS & JEFFERIES Ltd., and REVETT, R. H. March 17, 1959 [Jan. 27, 1958], No. 2741/58. Class 83 (2). A method of making a one-piece ploughshare from silicon-manganese steel, nickel steel or nickel-chromium steel (carbon content preferably above 0.5%), or chromium steel comprises forming the steel into the requisite shape, as by bending and forging, thinning the cutting edges and submitting the ploughshare to an isothermal heat treatment. The heat treatment may consist of heating the steel to a temperature above the austenitizing temperature of the material, e.g. 915‹ C., for say 15-30 minutes, and quenching in molten nitrate or lead, or in oil at a temperature above the point at which martensitic transformation commences, e.g. 300‹ C. This temperature is maintained for up to 30 minutes during which the unstable austenite changes to bainite.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB274158A GB911626A (en) | 1958-01-27 | 1958-01-27 | Improvements in ploughshares |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB274158A GB911626A (en) | 1958-01-27 | 1958-01-27 | Improvements in ploughshares |
Publications (1)
Publication Number | Publication Date |
---|---|
GB911626A true GB911626A (en) | 1962-11-28 |
Family
ID=9745011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB274158A Expired GB911626A (en) | 1958-01-27 | 1958-01-27 | Improvements in ploughshares |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB911626A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0029660A1 (en) * | 1979-10-26 | 1981-06-03 | W.A. TYZACK & COMPANY LIMITED | Slicing knife and method of making it |
WO2000022177A1 (en) * | 1998-10-14 | 2000-04-20 | Kverneland Klepp As | Heat treatment of wearable working tool |
RU2601211C2 (en) * | 2015-02-26 | 2016-10-27 | Александр Михайлович Михальченков | Stamp-welded ploughshare with increased resistance to abrasive wear |
-
1958
- 1958-01-27 GB GB274158A patent/GB911626A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0029660A1 (en) * | 1979-10-26 | 1981-06-03 | W.A. TYZACK & COMPANY LIMITED | Slicing knife and method of making it |
WO2000022177A1 (en) * | 1998-10-14 | 2000-04-20 | Kverneland Klepp As | Heat treatment of wearable working tool |
RU2601211C2 (en) * | 2015-02-26 | 2016-10-27 | Александр Михайлович Михальченков | Stamp-welded ploughshare with increased resistance to abrasive wear |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7700977L (en) | SET TO HEAT TREAT ONE FOR KUL- CH ROLL BEARING SET FOR STEEL | |
GB1165728A (en) | Fined Grained Steel and process for preparation thereof | |
GB1467835A (en) | Process for producing hot-rolled high-s'trength low-alloy steel | |
GB1412637A (en) | Method for producing ultra fine-grained microstructure in ferrous alloys | |
JPS5651532A (en) | Production of high-strength zinc hot dipped steel plate of superior workability | |
GB911626A (en) | Improvements in ploughshares | |
GB979512A (en) | Improvements in or relating to the manufacture of steel cutting tools | |
ES408152A1 (en) | Razor blades and process for making same | |
ES412418A1 (en) | Quick heat treatment of steels | |
GB956879A (en) | Heat treatment of carbon steel sheet and strip | |
GB1179829A (en) | Improved Method for the Manufacture of Razor Blades and Like Tools | |
JPS5440226A (en) | Spheroidizing heat treatment method for high carbon- chromium-molybdenum bearing steel | |
GB1439071A (en) | Thermal treatment of steel | |
GB1242794A (en) | Method of processing steel | |
JPS54104425A (en) | Heat treating method for high chromium white cast iron | |
ES333614A1 (en) | Procedure for softening high alloy steels. (Machine-translation by Google Translate, not legally binding) | |
ES8207226A1 (en) | Method for producing high-strength deep-drawable dual-phase steel sheets. | |
GB960174A (en) | Improvements in the production of hard steel particles | |
GB1325198A (en) | Process of heat treating nickelbearing steel and steel stock produced thereby | |
JPS55158872A (en) | Production of high alloy cast iron roll | |
GB775091A (en) | Improvements in the heat treatment of steel strip | |
GB606663A (en) | Improvements in or relating to chromium-carbon steels for bearing races and to heat treatment processes therefor | |
SU63732A1 (en) | Method of hardening cemented products from alloyed steels | |
GB912341A (en) | Heat treatable tool steel of high carbide content | |
Apaev | Phase Transformations in TRIP Steel 2 Kh 16 N 7 M 2 |