A kind of preparation method of alloy blow bar

Abstract

The invention discloses a method for preparing an alloy blow bar, comprising a blow bar body and an alloy material layer, characterized in that the alloy material layer is made of high vanadium wear-resistant alloy steel, and the alloy material layer and the blow bar body are inlaid It includes the following steps: Step 1, smelting high vanadium wear-resistant alloy steel; Step 2, blow bar pretreatment and molding process; Step 3, after the alloy steel is smelted, perform inlay casting, remove the riser, and trim the burrs; 4. After the casting process is completed, heat treatment is performed; step 5, cooling treatment is performed after heat treatment; step 6, after cooling treatment is completed, welding filling is performed. Within a certain cost range, its wear resistance and durability are greatly improved. Through reasonable process parameter settings, the bonding degree of the bimetallic bonding surface is better, and the service life of the blow bar is indirectly increased; in addition, by optimizing the process steps, the stability The performance and size of the blow bar reduce the number of maintenance and improve work efficiency.

Description

technical field [0001] The invention relates to a mining machine, in particular to a preparation method of an alloy blow bar. Background technique [0002] The blow bar is an important part of the crusher for crushing the blow bar. The wear of the blow bar is the main failure mode of the crusher. Generally, the service life of the blow bar is short and the consumption is large. It is necessary to store a large number of spare parts to maintain normal production, and the production cost is high. There are generally two reasons for the short service life of the blow bar: one is the improper selection of the blow bar material. The blow bar material should be made of wear-resistant alloy material, but the existing blow bars are generally made of high manganese steel. The hammer head of high manganese steel hammer crusher has good toughness, good workmanship and low price. Under the action of large impact or contact stress, the surface layer will quickly produce work hardening, ...

AI Technical Summary

Problems solved by technology

Carbide inlay technology has been paid attention to and extensively researched, but the scope of application is still too small and has not been applied in a large area. The alloy blow bar manufactured by the cemented carbide inlay technology in the prior art has poor application effect due to technological defects. Not ideal, therefore, how to optimize or simplify the preparation process is a common research topic for those skilled in the art