Heat-treating and improving the quality of rails at the Kuznetsk Metallurgical Combine

Metallurgist ◽  
1982 ◽  
Vol 26 (8) ◽  
pp. 296-298
Author(s):  
V. I. Vorozhishchev ◽  
B. S. Kisil' ◽  
A. P. Babich ◽  
V. N. Ermolaev ◽  
I. K. Lysenko ◽  
...  
Keyword(s):  
Heat Treating ◽  
Kuznetsk Metallurgical ◽  
Metallurgical Combine

Experience in improving the quality of roof refractories at Kuznetsk metallurgical combine

Refractories ◽  
1985 ◽  
Vol 26 (11-12) ◽  
pp. 627-631
Author(s):  
Yu. V. Gasin ◽  
O. V. Dolgikh ◽  
V. A. Kishenin ◽  
A. A. Lyubimtsev ◽  
L. I. Strokova
Keyword(s):  
Kuznetsk Metallurgical ◽  
Metallurgical Combine

PYROMET 600

Alloy Digest ◽  
1969 ◽  
Vol 18 (12) ◽  
Keyword(s):  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Nuclear Industry ◽  
Temperature Performance ◽  
Resistance To Oxidation ◽  
Technology Corporation ◽  
Carpenter Technology Corporation ◽  
Nickel Base

Abstract Pyromet 600 is a corrosion-resisting nickel-base alloy, having a very desirable combination of high strength and workability, both hot and cold. It has high strength and resistance to oxidation at high temperatures. It is designed to meet the highest quality of the nuclear industry. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-149. Producer or source: Carpenter Technology Corporation.

Analysis of the effect of deformation scheme on the quality of axle steel at the nizhniy tagil metallurgical combine

Metallurgist ◽  
2009 ◽  
Vol 53 (9-10) ◽  
pp. 627-632
Author(s):  
Yu. P. Petrenko ◽  
V. F. Myunkh ◽  
A. A. Bogatov ◽  
D. A. Vit’kin
Keyword(s):  
Nizhniy Tagil Metallurgical ◽  
Metallurgical Combine

Effect of the quality of the iron-ore-bearing raw materials and coke on the performance indices of blast furnaces at the Novolipetsk metallurgical combine

Metallurgist ◽  
2010 ◽  
Vol 54 (1-2) ◽  
pp. 3-13 ◽  
Author(s):  
I. F. Kurunov ◽  
V. N. Titov ◽  
V. L. Emel’yanov ◽  
A. M. Loginov ◽  
V. I. Basov ◽  
...  
Keyword(s):  
Iron Ore ◽  
Raw Materials ◽  
Blast Furnaces ◽  
Performance Indices ◽  
Novolipetsk Metallurgical ◽  
Metallurgical Combine

scholarly journals The effect of protective atmosphere on decarburisation of the heat-treated surface of steel

2017 ◽  
Vol 64 (4) ◽  
pp. 199-204
Author(s):  
Marica Prijanovič Tonkovič ◽  
Miha Knez
Keyword(s):  
Surface Layer ◽  
Heat Treating ◽  
Protective Atmosphere ◽  
Hardness Profile ◽  
Heat Treated ◽  
Protective Atmospheres ◽  
Different Types ◽  
Mixed Microstructure

AbstractIn heat-treating furnaces, many different types of protective atmospheres are used. This article researches the effect of protective atmospheres on the quality of the surface layer of bolts during the process of heating to reach the temperature of hardening. For this research, we produced specimens that were annealed in the furnace with two different types of protective atmosphere, i.e. in atmospheres of endothermic gas and nitrogen. After hardening and tempering, we measured the hardness of the specimens and investigated the microstructure. We measured the hardness profile from the surface to the inside of the product. We found that the hardness of the surface of the tested product was lower while using protective atmosphere of nitrogen due to the occurrence of ferrite. The depth of the decarburised layer in this atmosphere reached up to 70 mm, where predominantly there was a microstructure of ferrite on the surface, and then, with depth, an increasingly mixed microstructure of ferrite and martensite was found. The depth of the decarburised layer for sample treated in endothermic gas was minimal (i.e. 10 mm) on the surface.

scholarly journals Heat-treating `Sharwil' Avocado for Cold Tolerance in Quarantine Cold Treatments

HortScience ◽  
1994 ◽  
Vol 29 (10) ◽  
pp. 1166-1168 ◽  
Author(s):  
Suzanne S. Sanxter ◽  
Kate A. Nishijima ◽  
Harvey T. Chan
Keyword(s):  
Cold Tolerance ◽  
Chilling Injury ◽  
Heat Treating ◽  
Persea Americana ◽  
Polyethylene Bags

Chilling injury symptoms were reduced when `Sharwil' avocados (Persea americana Mill.) were held at 37 to 38C for 17 to 18 hours and then air-cooled at 20C for 4 hours before storage at 1.1C for ≥14 days. In contrast, nonheated fruit developed severe surface discoloration and pitting. Chilling injury symptoms were reduced further when the heated fruit were stored in perforated polyethylene bags during 1.1C storage. No treatment equaled or surpassed the quality of fruit in nontreated controls.

Improving the quality of pig iron at the Magnitogorsk Metallurgical Combine

Metallurgist ◽  
1982 ◽  
Vol 26 (1) ◽  
pp. 3-6
Author(s):  
Yu. V. Yakovlev ◽  
G. P. Lezhnev ◽  
I. P. Manaenko ◽  
B. A. Marsuverskii ◽  
G. V. Gorbunov
Keyword(s):  
Magnitogorsk Metallurgical ◽  
Pig Iron ◽  
Metallurgical Combine

HEAT TREATMENTS OF TANZANIA RUBY AS MONITORED BY ESR SPECTROSCOPY

2000 ◽  
Vol 14 (16) ◽  
pp. 1693-1700 ◽  
Author(s):  
P. WINOTAI ◽  
T. WICHAN ◽  
I. M. TANG ◽  
J. YAOKULBODE
Keyword(s):  
Heat Treatment ◽  
Heat Treating ◽  
Hexagonal Structure ◽  
Blue Color ◽  
Spin Resonance ◽  
Gas Atmosphere ◽  
Two Factors ◽  
Maximum Decrease ◽  
Electron Spin Resonance Spectrometer

The main purpose of heat treatment is to find the optimum condition to either enchance or reduce the color in order to increase value of ruby. It was found that by heating a slightly bluish Tanzania ruby in oxygen gas atmosphere could lead to a more perfect ruby. While X-ray diffractometer found the maximum decrease in c/a ratio of the hexagonal structure after the heat treatment at 1200°C, the number of Fe 2+ ions converted to Fe 3+ was detected by electron spin resonance spectrometer and found to increase with heating temperatures. These were clearly two factors that reduced blue color in the Tanzania ruby. The best heat treating temperature to enhance the quality of the ruby was at 1300°C.

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