ڏهن عام quenching طريقن جو خلاصو تيز فريڪئنسي ڪوئننگ مشين (1)

1. Single medium (water, oil, air) quenching

Single medium (water, oil, air) quenching: Quenching the workpiece that has been heated to the quenching temperature into a quenching medium to cool it completely. This is a simpler quenching method and is often used for carbon and alloy steel workpieces with simple shapes. The quenching medium is selected according to the heat transfer coefficient, hardenability, size and shape of the parts.

2. ٻٽي وچولي quenching

Dual-medium quenching: The workpiece heated to the quenching temperature is first cooled to the Ms point in the quenching medium of a high-frequency heating machine with strong cooling capacity, and then transferred to the slow-cooling quenching medium to cool to room temperature to achieve different quenching cooling temperatures range, and has an ideal quenching cooling rate. It is used for complex shapes or large workpieces made of high carbon steel and alloy steel, and carbon tool steel is also mostly used in this method. Commonly used cooling media are water-oil, water-nitrate, water-air, oil-air. Generally, water is used as a quick-cooling quenching medium, oil or air is used as a slow-cooling quenching medium, and air is less used.

3. Martensite graded quenching

مارٽينيٽڪ گريڊ ڪونچنگ: اسٽيل کي آسٽنٽائيز ڪيو ويندو آهي، ۽ پوءِ هڪ مائع وچولي (نمڪ غسل يا الڪلي غسل) ۾ وسريو ويندو آهي جنهن جو گرمي پد اسٽيل جي اپر مارٽين پوائنٽ کان ٿورو مٿي يا گهٽ هوندو آهي، مناسب وقت لاءِ رکيو ويندو آهي، ۽ اندرون ۽ ٻاهريون. اسٽيل جا حصا علاج ڪيا ويا آهن. پرت کي وچولي درجه حرارت تي پهچڻ کان پوء، ان کي هوا کي کولڻ لاء ٻاهر ڪڍيو ويندو آهي، ۽ سپر کولڊ آسٽنائٽ آهستي آهستي مارٽين سائٽ جي ٻرندڙ عمل ۾ تبديل ٿي ويندي آهي. اهو عام طور تي پيچيده شڪلين ۽ سخت deformation گهرجون سان ننڍي workpieces لاء استعمال ڪيو ويندو آهي، ۽ تيز-رفتار اسٽيل ۽ اعلي-مصري اسٽيل جا اوزار ۽ مري به عام طور تي هن طريقي سان quenched آهن.

4. Martensite graded quenching method below Ms point

Martensitic graded quenching method below Ms point: When the bath temperature is lower than the Ms of the workpiece steel and higher than Mf, the workpiece cools faster in the bath, and the same result as the graded quenching can be obtained when the size is larger. Commonly used for larger size low hardenability steel workpieces.

5. Bainite isothermal quenching method

Bainite isothermal quenching method: The workpiece is quenched into a bath with the lower bainite temperature of the steel at an isothermal temperature, so that the lower bainite transformation occurs. Generally, it is kept in the bath for 30~60min. There are three main steps in the bainite isothermal quenching process: ① austenitizing treatment; ② cooling treatment after austenitizing;