The Die Assisted Oil Quenching process is a highly customisable heat treatment that permits a relevant reduction of distortions thus limiting or avoiding following grinding operations. Distortion reductions can be obtained not only by an action on process parameters and equipment but also by choosing ...
mineral-basedfor steel alloysfor the automotive industry quenching oil THERMIC 30 R Operating temperature: 80 °C - 110 °C Flash point: 220 °C THERMIC 30 R is an extremely drastic semi-hot quenching oil, used only for steels with a bad hardening capacity. PRODUCT TYPE HEAT TREATMENT PACKAG...
5 Medium- and high-carbon steels may be hardened and strengthened by heat treatment, which consists of heating to a certain temperature, quenching in a cooling medium, such as water or oil, and tempering by heating to a lower temperature that partially softens the steel and restores ductility....
We mainly focus on the manufacturing of big size special steel forging which are widely used in heavy industry of oil & gas, electricity, chemical, shipping, metallurgy, machinery.Our max forging weight could reach 50 tons. Forging roll and shaft OD100-OD1000mm...
for use with solid fuels, including, but not limited to, coal-, peat-, wood- and municipal solid waste-fired combustion processes. It can also be used, however, in the combustion of gaseous and liquid fuels such as natural gas, coal/water slurries, fuel oil, kerosene, gasoline or ...
The objective of this paper is to compare distortion and mechanical properties of parts after quenching in vegetable oil and mineral oil in a commercial production process. The first part of this work compares the relative hardening penetration for vegetable oil and mineral oil.All the trials were...
microstructural examination, samples were tempered at 200oC for 1h.#Results from the experimental findings revealed that water and bio-mineral oil blend quenchants significantly influenced the mechanical properties and microstructure of carburized mild steel in varying degrees depending on the quenching ...
It has been established that there is an optimal concentration of oligomer in Hartol - SKD oil which provides the best cooling condition for quenching bearing rings made of AISI 52100 steel. It is underlined that in the future cooling capacity of quenchants should be tested using Liscic - ...
It has been shown by authors that an addition of the special additive to mineral quench oils for example a polyisobutylene oligomer (PIB), creates an insulating layer on the surface of steel parts during quenching. This insulating layer eliminates the film boiling process on the part surface ...
liquid quenchingheat transfer coefficient4140 steelHigh temperature surface oxidationnucleate boilingpartial film boilingThe effect of oxide formation on the cooling rate and heat transfer coefficient as a function of temperature of 4140 steel probes has been experimentally and numerically investiga...