Steel die forging piston heat treatment adjustable temperature control furnace with energy saving and emission reduction effects and heat treatment process method thereof

Abstract

The invention relates to a steel die forging piston heat treatment adjustable temperature furnace with energy saving and emission reduction effects and a heat treatment process method thereof. Compared with the prior art, the defects that in the steel die forging heat treatment process, heat energy is wasted, the temperature control difficulty is large, and the internal quality of a produced steeldie forging piston is unstable are overcome. An inlet of a heat return pipeline is formed above a rapid cooling device; an outlet of the heat return pipeline is installed above a cooling section of the heat treatment device, a cold air inlet is formed in the side portion of the rapid cooling device and located below the conveying belt, the cold air fan is installed beside the rapid cooling device, an air inlet of the cold air fan faces the outside, and an air outlet is connected with the cold air inlet of the rapid cooling device through a pipeline. Based on the novel heat treatment process method, the requirements of customers for the metallographic structure and the grain size in the steel die forging piston are met, the percent of pass is increased, and meanwhile the effects of energyconservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of heat treatment of steel die forging pistons, in particular to an adjustable temperature furnace for heat treatment of steel die forging pistons with the effect of energy saving and emission reduction and a heat treatment process method thereof. Background technique [0002] Steel die-forging pistons are superior to traditional aluminum alloy die-casting pistons in achieving high compression ratio in the engine, improving combustion efficiency, reducing exhaust emissions, and improving service life. Compared with traditional aluminum alloy die-casting pistons: its mechanical strength High (for example, the tensile strength of 42CrMo steel can exceed 1080MPa, while the tensile strength of cast aluminum alloy is only 133MPa ~ 437MPa), high temperature mechanical properties and high temperature wear resistance, small thermal expansion coefficient (about half of aluminum alloy, can make the piston and cylinder ...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the defects in the prior art, such as the waste of heat energy in the heat treatment process of steel die forging, the difficulty of temperature control, and the unstable internal quality of the produced steel die forging piston, and to provide a steel with energy saving and emission reduction effects. Mass die forging piston heat treatment adjustable temperature furnace and its heat treatment process to solve the above problems

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