Method for preparing forklift parking brake disc

Abstract

The invention discloses a method for preparing a forklift parking brake disc. The method includes the following process steps that a smelting process is adopted, and an intermediate frequency furnace is used for electroslag remelting process smelting in the smelting process; ferrochromium, scrap steel and scrap aluminum with the weight ratio of 2:6:1 together with smelting additive with the scrap steel mass of 0.4%-0.5% are added into the intermediate frequency furnace to be mixed, heated and melted; when the temperature reaches 900-940 DEG C, mixed gas of nitrogen and hydrogen is connected into the intermediate frequency furnace at the rate of 1.3-1.8L / min, and the time is 20-30 min. By means of the reasonable smelting process, nitriding process and curing process, defects in the prior art are overcome, a bolt gasket material with good toughness and rigidity is obtained, production cost is obviously reduced and using efficiency is obviously improved.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a method for preparing a forklift parking brake disc. Background technique [0002] The forklift parking brake disc is an important part of the forklift braking system. It not only has high requirements on structural strength and function, but also is equally important in mechanical processing. Such requirements are not only to meet the basic conditions for automobile use, but also to ensure safety Reliable guarantee for extended service life. [0003] In the prior art, the steel used for the production of brake discs is ordinary low-medium content alloy steel, because these brake discs are generally frequent moving parts in terms of function, with high wear rate and frequent replacement, which increases maintenance costs; looking for It is very important to find a medium-low content alloy steel that improves hardness and wear resistance, and has high heat resistance on the surface of ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the steel used for the production of brake discs is ordinary low-medium content alloy steel, because these brake discs are generally frequent moving parts in terms of function, with high wear rate and frequent replacement, which increases maintenance costs; looking for It is very important to find a low-medium content alloy steel that improves hardness and wear resistance, and has high heat resistance on the surface of the part.