SU986732A1 - Method of power high-speed abrasive working - Google Patents
Method of power high-speed abrasive working Download PDFInfo
- Publication number
- SU986732A1 SU986732A1 SU813348223A SU3348223A SU986732A1 SU 986732 A1 SU986732 A1 SU 986732A1 SU 813348223 A SU813348223 A SU 813348223A SU 3348223 A SU3348223 A SU 3348223A SU 986732 A1 SU986732 A1 SU 986732A1
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- SU
- USSR - Soviet Union
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- pressure
- atm
- time interval
- interval
- speed
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Изобретение относитс к металлообработке , в частности, силовой CKO-I ростной абразивной зачистке слитков, проката, поковок на металлургических заводах.The invention relates to metalworking, in particular, CKO-I power growth abrasive grinding of ingots, rolled products, forgings at metallurgical plants.
Известен способ силовой скоростной абразивной обработки деталей в газообразной среде 1.The known method of power high-speed abrasive machining of parts in a gaseous environment 1.
Недостатком этого способа вл етс возможность образовани трещин в поверхностном слое.The disadvantage of this method is the possibility of the formation of cracks in the surface layer.
Цель изобретени - устранить указанный недостаток.The purpose of the invention is to eliminate this drawback.
Поставленна цель достигаетс тем, что шлифование провод т с подачей в послеконтактную зону инертного .газа под давлением 1-20 атм в течение 1060 сек.This goal is achieved by the fact that grinding is carried out with the supply of inert gas to the post-contact zone under a pressure of 1-20 atm for 1060 seconds.
На чертеже показана схема обработки ..The drawing shows the processing circuit ..
Заготовку 1 обрабатывают шлифовальным кругом 2. Газ подаётс через сопло 3 в послеконтактную зону Б. А зона контакта абразива и металла.The workpiece 1 is treated with a grinding wheel 2. Gas is fed through the nozzle 3 into the postexposure zone B. And the zone of contact between the abrasive and the metal.
Временной интервал (10-60 сек) ограничиваетс как слева, так и справа скоростью охлаждени послеконтактной поверхности от температур в зоне контакта до , ниже которой химическое равновесие реакции смещаетс The time interval (10-60 sec) is limited both to the left and to the right of the cooling rate of the post-contact surface from the temperatures in the contact zone to below which the chemical equilibrium of the reaction shifts.
влево, и образование окисной пленки становитс невозможно. Экспериментально установ11ено, что минимальное врем дл образовани устойчивой окисной пленки в услови х силового шлифовани соответствует 10 с.to the left, and the formation of the oxide film becomes impossible. It was experimentally established that the minimum time for the formation of a stable oxide film under conditions of force grinding corresponds to 10 s.
Кроме того, опытным путем установлено , что поддержание нейтральной локальной атмосферы над металлом более In addition, it has been experimentally established that maintaining a neutral local atmosphere over a metal is more
10 60 с нецелесообразно, т.к. поверхность металла за это врем остывает, и образование окисных пленок становитс невозможным.10 60 s is impractical, because the surface of the metal cools down during this time, and the formation of oxide films becomes impossible.
Исход из кинетики охлаждени вы15 бирают интервал давлений. В зависимости от скорости перемещени заготовки давление исход щего из сопла газа колеблетс в интервале 1-20 атм. Давление в 1 атм, как показывает практи20 ка, создает локальную атмосферу в течение 10 с при минимальной подаче мин/м и вл етс нижней границей. Дл удержани локальной атмосферы в течение 60 с при скорос ГИ подачи Based on the cooling kinetics, a pressure range is selected. Depending on the speed of movement of the preform, the pressure of the gas outgoing from the nozzle varies in the range of 1-20 atm. A pressure of 1 atm, as practice shows, creates a local atmosphere for 10 seconds with a minimum flow of min / m and is the lower limit. To keep the local atmosphere for 60 s at a flow rate of GI
25 80 м/мин необходимо давление в 20 атм. Это вл е1с верхним пределом дл регулировани давлени , т.к. дальнейшее его повышение приводит лишь к расходу газа без какого-либо 25 to 80 m / min. A pressure of 20 atm is required. This was an upper limit for pressure regulation, since its further increase only leads to gas consumption without any
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813348223A SU986732A1 (en) | 1981-07-10 | 1981-07-10 | Method of power high-speed abrasive working |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813348223A SU986732A1 (en) | 1981-07-10 | 1981-07-10 | Method of power high-speed abrasive working |
Publications (1)
Publication Number | Publication Date |
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SU986732A1 true SU986732A1 (en) | 1983-01-07 |
Family
ID=20980503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU813348223A SU986732A1 (en) | 1981-07-10 | 1981-07-10 | Method of power high-speed abrasive working |
Country Status (1)
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SU (1) | SU986732A1 (en) |
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1981
- 1981-07-10 SU SU813348223A patent/SU986732A1/en active
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