SU121139A1 - Heating thread rollers with high frequency currents - Google Patents
Heating thread rollers with high frequency currentsInfo
- Publication number
- SU121139A1 SU121139A1 SU616873A SU616873A SU121139A1 SU 121139 A1 SU121139 A1 SU 121139A1 SU 616873 A SU616873 A SU 616873A SU 616873 A SU616873 A SU 616873A SU 121139 A1 SU121139 A1 SU 121139A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- high frequency
- frequency currents
- rollers
- heating
- thread rollers
- Prior art date
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Description
Известен нагрев резьбонакатиых роликов в сол ных ваннах или в печах при необъемиой закалке. При этом нагреве стойкость роликов ч:нижаетс , так как получаетс обезуглероживание рабочей поверхности.Known is the heating of thread rolling rollers in salt baths or in furnaces with non-volatile hardening. With this heating, the durability of the rollers h: decreases, since decarburization of the working surface is obtained.
Предлагаемый нагрев резьбонакатных роликов из быстрорежущей стали и стали ХВГ токами высокой частоты при поверхностной закалке обеспечивает повышенную стойкость роликов и снижает брак при термообработке . Дл этой цели примен етс специальна конструкци закалочного станка с оправкой и индуктором. Оправка с насаженным роликом устанавливаетс в центре и вращаетс со скоростью 100- 150 об/мин. Нагрев производитс токами высокой частоты в течение 1 мин. (±5 сек.) дл роликов из стали ХВГ, 1 мин. 30 сек- (±5сек.) - дл роликов из стали Р-9 и ЭИ-347 и 1 мин. 45 сек- (±5 сек-) -дл роликов из стали Р-18. После нагрева ролики опускаютс в масло на 10-15 мин. и затем охлаждаютс на воздухе.The proposed heating of thread rolling rollers made of high-speed steel and HVG steel by high-frequency currents during surface hardening provides increased resistance to the rollers and reduces scrap during heat treatment. For this purpose, a special construction of a tempering machine with a mandrel and an inductor is used. A mandrel with a mounted roller is installed in the center and rotates at a speed of 100-150 rpm. Heating is performed by high frequency currents for 1 minute. (± 5 sec.) For HVG steel rollers, 1 min. 30 sec- (± 5 sec.) - for rollers made of steel R-9 and EI-347 and 1 min. 45 sec- (± 5 sec-) -dl rollers of steel R-18. After heating, the rollers are lowered into the oil for 10-15 minutes. and then cooled in air.
Предмет изобретени Subject invention
Нагрев резьбонакатных роликов токами высокой частоты без подогрева , закалка в масле и отпуск на воздухе без предварительного нагрева под отпуск, отличающийс тем, что, с целью повыщени производительности и улучщени качества резьбонакатных роликов, примен етс закалочный станок с вращающимис центрами и индуктор дл закалки токами высокой частоты.Heating the thread rolling rollers with high frequency currents without heating, quenching in oil and tempering in air without preheating for tempering, characterized in that, in order to increase productivity and improve the quality of thread rollers, a hardening machine with rotating centers and an inductor for high current quenching frequencies.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU616873A SU121139A1 (en) | 1959-01-19 | 1959-01-19 | Heating thread rollers with high frequency currents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU616873A SU121139A1 (en) | 1959-01-19 | 1959-01-19 | Heating thread rollers with high frequency currents |
Publications (1)
Publication Number | Publication Date |
---|---|
SU121139A1 true SU121139A1 (en) | 1959-11-30 |
Family
ID=48392943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU616873A SU121139A1 (en) | 1959-01-19 | 1959-01-19 | Heating thread rollers with high frequency currents |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU121139A1 (en) |
-
1959
- 1959-01-19 SU SU616873A patent/SU121139A1/en active
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