Forging method for stabilizer bar used for excavator

Abstract

The invention discloses a forging method for a stabilizer bar used for an excavator. The forging method comprises the following steps: performing centrifugal casting on a blank; performing outer layer centrifugal casting: controlling the weight percentage of all chemical components in molten steel to meet the following requirements after molten steel on the outer layer is melted: 0.23-0.32 percent of C, 0.17-0.28 percent of Mn, 0.15-0.20 percent of Cr, 0.25-0.35 percent of Si, 0.03-0.05 percent of Ti, 0.034-0.045 percent of P, 0.016-0.035 percent of S, 0.28-0.32 percent of Ni, 0.035-0.045 percent of Li, 0.15-0.25 percent of Sn, 0.02-0.06 percent of Cu and balance of Fe; controlling the tapping temperature of the molten steel to be 1550-1650 DEG C; adding casting powder by 5-6kg / m<2> for killing treatment; controlling the outer layer casting temperature to be 1500-1550 DEG C; controlling the rotating linear speed of a cold-type inner wall to be 20-25m / s. The forging method disclosed by the invention is in favor of mass industrial production, and has the advantages that the phenomena that impurities are entrained and a cast cannot be fully filled during a forging process are reduced, the mechanical property of a product is further improved, product materials are saved, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to a forging method of a stabilizer bar for an excavator. Background technique [0002] As an important part of automobile suspension components, the stabilizer bar can improve the roll angle stiffness of the suspension and adjust the ratio of the front and rear suspension angle stiffness to ensure that the car has good driving stability, thereby ensuring the safety, comfort and ride comfort of the car . General manufacturers in the industry just spray the anti-rust paint directly or without shot blasting during the surface treatment, and then paint the black paint after the anti-paint is dry. This kind of coating has poor corrosion resistance, short service life and potential safety hazards. Contents of the invention [0003] The purpose of the present invention is to provide a method for forging a stabilizer bar for an excavator, which is beneficial to large-scale industrial production, and reduces the phenomenon of conta...

AI Technical Summary

Problems solved by technology

General manufacturers in the industry just spray the anti-rust paint directly or without shot blasting during surface treatment, and then paint the black paint after the anti-rust paint is dry. This kind of coating has poor corrosion resistance, short service life, and potential safety hazards.