SU129222A1 - High-speed steel and its heat treatment method - Google Patents
High-speed steel and its heat treatment methodInfo
- Publication number
- SU129222A1 SU129222A1 SU630444A SU630444A SU129222A1 SU 129222 A1 SU129222 A1 SU 129222A1 SU 630444 A SU630444 A SU 630444A SU 630444 A SU630444 A SU 630444A SU 129222 A1 SU129222 A1 SU 129222A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- heat treatment
- treatment method
- speed steel
- steel
- temperature
- Prior art date
Links
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Articles (AREA)
Description
Стали, Примен емые дл изготовлени быстрорежущего инструмента , не обеснечивают достаточной его износоустойчивости, особенно при ударной нагрузке.The steels used for the manufacture of high-speed tools do not deplete its sufficient wear resistance, especially under shock loads.
Описываема быстрорежуща сталь, содержаща хром, ванадий, вольфрам и кобальт, а также способ ее термической обработки, позвол ют -повысить срок службы быстрорежущего инструмента. Достигаетс это изменением соотношени содержани Б сталп ванади и углерода , а также сокращением продолжительности нагрева стали перед ее закалкой.The described high-speed steel containing chromium, vanadium, tungsten and cobalt, as well as the method of its heat treatment, make it possible to increase the service life of the high-speed tool. This is achieved by varying the ratio of the content of carbonate vanadium and carbon, as well as by reducing the duration of heating of the steel before quenching it.
Предлагаема сталь содержит: 1,5% углерода, 4,OVo .хрома, 17% вольфрама, 3,0% ванади , 1,0% .молибдена и 8,OVo кобальта. Термическа обработка стали: закалка в масле с температуры 1220-1260° и последующий трехкратный отпуск первые два раза с температуры 560° и третий раз с температуры 580-бОО. Предварительный, нагрев под закалку осуществл ют до температуры ЗБО, а окончательный нагрев до 1220-1260° ведут в хлористо-бариевой ванне, причем выдержка нагрева должна составл ть всего 3-4 сек/мм. После такой термической обработки сталь обладает следующими свойствами: твердость Re-70, прочность при изгибе-200-216 кг/мм- и ударна в зкость -1,2- .1,98 кг/см.The proposed steel contains: 1.5% carbon, 4, OVo. Chrome, 17% tungsten, 3.0% vanadium, 1.0% molybdenum and 8, OVo cobalt. Thermal treatment of steel: quenching in oil from a temperature of 1220–1260 ° and subsequent three-time tempering the first two times from a temperature of 560 ° and the third time from a temperature of 580-BOO. Preheating, heating for quenching is carried out to the temperature of the HBO, and the final heating to 1220-1260 ° is carried out in a barium chloride bath, and the heating shutter speed should be only 3-4 sec / mm. After this heat treatment, the steel has the following properties: Re-70 hardness, flexural strength — 200–216 kg / mm– and impact strength –1.2– .1.98 kg / cm.
Красностойкость стали (при 650°) очень высока .Redness of steel (at 650 °) is very high.
Предмет изобретени Subject invention
1. Быстрорежуща сталь, содержаща хром, ванадий, вольфрам и кобальт, отличающа с тем, что, с целью повышени износоустойчивости она содержит (в процентах):1. High-speed steel containing chromium, vanadium, tungsten and cobalt, characterized in that, in order to increase wear resistance, it contains (in percent):
№ 129222- 2 -No. 129222-2 -
углерода 1carbon 1
ipoMa ,0ipoMa, 0
вольфрама tungsten
ванади invanadi in
молибдена1molybdenum1
кобальта,°cobalt, °
,2 Способ термической обработки стали по п. 1, предусматривающий закалку с температуры 1220-1260° с последуюп им трехкратным отпуском с температуры 560-600°, отличающийс тем, что, продолжительность выдержки при окончательном нагреве перед закалкой сокращают до 3-4 сек/мм.., 2 The method of heat treatment of steel according to claim 1, which includes quenching from a temperature of 1220-1260 ° C followed by a threefold tempering from a temperature of 560-600 °, characterized in that the duration of exposure during final heating before quenching is reduced to 3-4 seconds / mm ..
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU630444A SU129222A1 (en) | 1959-06-08 | 1959-06-08 | High-speed steel and its heat treatment method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU630444A SU129222A1 (en) | 1959-06-08 | 1959-06-08 | High-speed steel and its heat treatment method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU129222A1 true SU129222A1 (en) | 1959-11-30 |
Family
ID=48400391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU630444A SU129222A1 (en) | 1959-06-08 | 1959-06-08 | High-speed steel and its heat treatment method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU129222A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547978C1 (en) * | 2014-03-19 | 2015-04-10 | Игорь Владимирович Доронин | Method for thermal improvement of tool |
-
1959
- 1959-06-08 SU SU630444A patent/SU129222A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547978C1 (en) * | 2014-03-19 | 2015-04-10 | Игорь Владимирович Доронин | Method for thermal improvement of tool |
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