Location: Home > Product > Ceramic Composite Casting(MMC castings) > Metal matrix ceramic composite roller

crusher part
  • Metal matrix ceramic composite roller

Roller in High Cr+ ZTA Ceramic + GGG composite centrifugal 高铬陶瓷铸铁辊套离心铸造特点 The characteristics of High chromium cast iron + ZTA ceramic roller by centrifugal casting.


Roller in High Cr+ ZTA Ceramic + GGG composite centrifugal

The characteristics of High chromium cast iron + ZTA ceramic roller by centrifugal casting. 
Using bi-metal composite centrifugal casting technology.
Fast cooling metal mold making the casting have a compact microstructure to improve wear resistance.
Using high chromium cast iron(Cr17NiMo,Cr18Ni2,etc)+ZTA ceramic to the out layer of roller, using alloy ductile iron like GGG400 etc or alloy steel like 35CrNiMo etc at inner layer (with high strength and toughness).
By reasonable wear resistant layer thickness design according to client’s requirement to reduce the dosage of alloy and the cost.
二、生产流程 The production process.1.熔炼Smelting.
The molten steel (P and S with content of ≤0.02%)for the outside layer add various kinds of alloy for mixed melting, making bath analysis to certified composition, together with deoxidization protection in the process f melting.
2.浇铸Casting pouring
According to the roller size and weight to choose the appropriate centrifuges. Cast moulds choose grey cast iron or cast steel material, spraying a certain thickness of refractory coating. To control the cleanness inside the mold strictly, inclusion-free, to ensure the quality of castings. Roller shell use layered casting: outer layer, transition layer and inner layer, pouring according to the process setting in advance. The outer select proper pouring temperature, after interval of time, pouring the transition layer, to ensure that the outer layer and transition layer have a good composite state, after a interval time again, pouring the inner layer. Stay all inner and outer molten steel pouring out, waiting for the roller demoulding after coagulation casting, after demoulding, adopt the annealing process.
3.热处理Heat treatment
The roller use annealing, quenching and tempering heat treatment process. After demoulding, the roller casting will directly be put into the heat-treatment furnace for annealing, after that, take rough machining, and then quenching, several times with tempering process to eliminate the internal stress of castings thoroughly.
Hits:  UpdateTime:2016-06-14 16:46:16  【Printing】  【Close
Pre Item:None
Next Item:None
  • Tel: 86-10-8890 9291/8890 9293 Fax: 86-10-8890 9288 Email: info@djm-bj.com
  • Room No.1403 TaiRan Building, No.36 GuSheng Road, ShiJingShan District, Beijing, China.100043
  • Copyright 2006-2018 DJM All Right Reservered. Report To Improve Product
    京ICP备11022145号-2 & 京公网安备110107000026
  • MMC Mill part, MMC Impact bar, MMC Mantle, MMC Crusher part, Ceramic composite High Mn Steel, ceramic particules composite casting,ceramic Insert composite castings
Powered by  MetInfo  3.0 ©2008-2020  www.MetInfo.cn