Production technique method of double-liquid bimetal composite casting hammer type hammerhead

Abstract

The invention provides a producing method for a double-fluid bimetal complex casting hammer type hammerhead. Two casting systems are used. Firstly, low-alloy steel or common cast steel are cast at the cast steel gate, when the molten steel reaches the complex boundary or is a little lower than that, according to the size of the cast, after spacing 3-120 seconds, high-chromium cast iron or high alloy steel are cast into the high-chromium cast iron gate, and chill material is placed at the cast steel part of the steel and iron connection position, to ensure the crystal boundary surface and the base body to have a certain temperature gradient, a certain thickness and a intact boundary surface. Since the hammerhead is made of high-chromium cast iron, the hammer handle is made of low-alloy steel or common cast steel, wearing resistance property of high-chromium cast iron and strong toughness of hammer handle steel are both utilized, so that the use characteristic of the hammerhead is optimized.

Description

Technical field [0001] The invention relates to a production process method of a double-liquid bimetal composite casting hammer-type hammerhead. In particular, the invention relates to a production process method of a double-liquid bimetal compound casting hammer-type hammerhead by placing a chilling material at the joint surface of the two materials to ensure a certain temperature gradient between the crystallization interface and the matrix. Background technique: [0002] The hammer hammer is an important part of the crusher, and it is also the most consuming and easily damaged part of the crusher. At present, most of the various types of traditional hammer heads used in domestic crushers are made of medium carbon alloy steel, high manganese steel or high chromium cast iron. Although medium-carbon alloy steel and high-manganese steel have good toughness, they have low hardness, relatively poor wear resistance, and low service life of the hammer head; although high-chromiu...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the relatively poor wear resistance of the material of the existing hammer hammer head, and the high chromium cast iron is easy to break at the handle of the hammer head during use, the invention provides a double liquid bimetal composite casting hammer hammer head production process

Images