Hexa-potassium tianate crystal whisker reinforced, non-zillerite, non- metal friction material for industry

Abstract

The present invention provides a friction material containing no asbestos or metal for industrial use, and in particular relates to a manufacturing technology for industrial friction materials such as port machinery, crane machinery, and wind-power generator groups and so on. The potassium titanate is used as the main raw material; the glass fiber and cellulose fiber are used as the assistant materials; the cashew oil modified resin and nitrile modified resin are used together as bonding agent; the magnesium oxide, graphite and friction powder are used as friction-reducing agent; the alumina oxide and brown corundum are used as friction-increasing agent; the barium sulfate and barite are used as additive; the raw material are mixed according to a formula proportion and then blended; the friction component of best performances can be made after molding and heat treatment; the friction component is in particular suitable for port machinery, crane machinery, and wind-power generator groups and so on.

Description

technical field [0001] The invention belongs to the technical field of friction materials, and relates to an industrial friction material reinforced by potassium hexatitanate whiskers, free of asbestos and metal, especially suitable for manufacturing brakes of port machinery, hoisting machinery, wind power generators, etc. element. Background technique [0002] In the current industrial friction material technology, most of them use asbestos fibers, metal fibers, and glass fibers as reinforcing agents. Using asbestos fiber as a reinforcing agent can obtain higher mechanical properties at a lower cost, but asbestos dust in the manufacturing and braking process seriously pollutes the environment and endangers human health, and is widely banned in the world; using metal fiber as reinforcement The friction material itself has high quality and high hardness, which is easy to generate low-frequency noise, causing noise pollution to the environment, high hardness and easy to damag...

AI Technical Summary

Problems solved by technology

Using asbestos fiber as a reinforcing agent can obtain higher mechanical properties at a lower cost, but asbestos dust in the manufacturing and braking process seriously pollutes the environment and endangers human health, and is widely banned in the world; using metal fibers as reinforcement The friction material itself has high quality and high hardness, which is easy to generate low-frequency noise, causing noise pollution to the environment, high hardness and easy to damage the counterpart, and the price of metal fiber is high, so it is not suitable for large-scale promotion and application; purely using glass fiber as The friction material of the reinforcing agent has poor high temperature performance, high wear rate, unstable performance and short service life

In recent years, there has been a technology of using wollastonite needle powder and aluminum silicate fiber cotton as a reinforcing agent to replace asbestos fibers (see the 2002 Chinese patent with patent number: 02116595.5), and its main performance parameter is the friction coefficient of 0.3-0.5. The fluctuation range is large, the lower limit of the parameters is low, and the performance parameters of asbestos friction materials cannot be reached, and its material formula and production process are designed for motor vehicle brakes and other small friction materials, so it is not suitable for industrial use with large appearance and thick thickness. brake