Theoretical foundations for modeling the occurrence of attached, vortex and vibration cavitation during heat treatment of machine parts in a cavitating coolant

During heat treatment of machine parts and tools, besides the usual task of ensuring a high complex of mechanical and operational properties, there is a problem of distortion of products in the process of heat treatment and the need for editing operations (which are carried out manually and require significant labor costs). The known methods do not solve the problem of removing distortion for thin-walled parts of the ring shape completely. This paper shows the technical possibility of using the energy of a constant magnetic field for the "internal" straightening of products during heat treatment in the temperature range of super-plasticity of transformation. The use of special equipment makes it possible to eliminate virtually the distortion of thin-walled parts of the ring shape and to improve their mechanical properties.

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Solution for Heat Treatment in Quenching Process of S45C Steel Small Diameter Machine Parts Having Strong Texture

2018 4th International Conference on Green Technology and Sustainable Development (GTSD) ◽

10.1109/gtsd.2018.8595610 ◽

2018 ◽

Author(s):

Long Nguyen Nhut Phi ◽

Ngon Dang Thien ◽

Cuong Le Chi ◽

Phoi Nguyen Vinh

Keyword(s):

Heat Treatment ◽

Small Diameter ◽

Quenching Process ◽

Machine Parts

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The use of protective glass coatings during heat treatment of machine parts

Metal Science and Heat Treatment ◽

10.1007/bf00647888 ◽

1972 ◽

Vol 14 (7) ◽

pp. 642-643

Author(s):

N. L. Emel'yanenko ◽

R. I. Shagabutdinov ◽

R. M. Valeev ◽

L. P. Smirnova

Keyword(s):

Heat Treatment ◽

Machine Parts

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Electrical conveyor chamber furnace for heat treatment of machine parts in protective atmospheres

Metal Science and Heat Treatment ◽

10.1007/bf00655367 ◽

1964 ◽

Vol 6 (7) ◽

pp. 460-460

Keyword(s):

Heat Treatment ◽

Chamber Furnace ◽

Protective Atmospheres ◽

Machine Parts

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THE ANALYSIS OF THE SELECTED PROCESSES OF THERMO-CHEMICAL HEAT TREATMENT OF 20MnCr5 STEEL IN THE CONTEXT OF ABRASIVE WEAR

Tribologia ◽

10.5604/01.3001.0010.6699 ◽

2016 ◽

Vol 269 (5) ◽

pp. 183-193

Author(s):

Wojciech TARASIUK ◽

Mariusz LISZEWSKI ◽

Bazyli KRUPICZ ◽

Ewa KASPRZYCKA

Keyword(s):

Heat Treatment ◽

Wear Resistance ◽

Thin Layer ◽

Abrasive Wear ◽

Abrasive Wear Resistance ◽

Chemical Heat Treatment ◽

Chemical Heat ◽

Chrome Plating ◽

Pin On Disc ◽

Machine Parts

This paper presents the results of tribological tests performed on a T-11 pin-on-disc type, which made it possible to determine the intensity of abrasive wear of steel 20MnCr5 subjected to selected thermo-chemical heat treatments. The tested steel, after the hardening and tempering process, is characterized by high endurance parameters and is used on heavily loaded machine parts. It is frequently used for elements subjected to intense abrasion. The analysis involved the following: carburizing, boronizing, and various methods of diffusion chromizing. For large loads, it is advisable to apply boronizing or carburizing with hardening. Chrome plating entails a very thin layer of increased hardness, which is characterised by a low abrasive wear resistance at high loads.

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