Abrasion resistance of strong steel, wear-resistant steel wear-resistant materials is one of the largest amount of A.
A brief history of wear-resistant steel as a kind of special steel began around the latter half of the nineteenth Century. In 1883 the British Hadfield ( R0.A0.Hadfield ) first made ofpatent, has a history of over 100 years, is a kind of carbon and manganese contents high wear-resistant steel, this has a history of 100 years old steel, due to its large impact abrasive wear under the conditions of use have strong work hardening ability, also has good toughness and plasticity, and the production process is easy to master and other advantages, therefore, it is still in the dosage is the biggest kind ( especially in the mining sector ). In recent decades, the low, medium alloy abrasion-resistant steel development and application development is very rapid, the steel has good abrasion resistance and toughness, has simple production technology, comprehensive economic reasonable, applicable in many conditions, and get the welcome of the user. In order to adapt to the mining transport machinery and engineering machinery development needs, developed a high hardness and plate, in twentieth Century 70～ 80 time in the series have been formed and standardization. This kind of steel is in low alloy high strength weldable steel is developed on the basis of, they generally use direct quenching and tempering and tempering, or the introduction of controlled rolling and controlled cooling process, aggrandizement, energy saving, and low alloy content, the price is cheaper, but the high hardness, wear resistance, process performance can be, because of these advantages make this type of plate is very popular with users. Japan, Britain, the United States and other countries some Steel Corp are the production of this type of wear resistant steel.
Wear resistant steel variety, substantially can be divided for, medium, low alloy wear resistant steel, chromium molybdenum silicon manganese steel, gas corrosion of steel, wear-resistant steel and special wear-resistant steel. Some common alloy steels such as , bearing steel, alloy and alloy structural steel are also in the specific condition as wear-resistant steel use,carbon steel castings, because they are a convenient source, excellent performance, the wear-resistant steel use has also occupied a certain proportion.
In low alloy wear resistant steel, this kind of steel is usually contains the chemical elements with silicon, manganese, chromium, molybdenum, vanadium, tungsten, nickel, titanium, boron, copper, rare earth. The United States for many large and medium-sized ball mill lining board with chromium molybdenum manganese or chromium molybdenum steel manufacturing, its chemical composition are shown in table 1. The United States and most of the grinding ball used in high carbon chromium steel, manufacturing, its chemical composition, heat treatment and hardness are shown in table 2. At higher temperature (200～ 500 ℃) of the abrasive wear of work under the conditions of the workpiece or due to frictional heat surface subjected to high temperature of the workpiece, the chromium molybdenum vanadium, chromium molybdenum vanadium nickel or chromium molybdenum vanadium tungsten alloy wear resistant steel, this kind of steel after quenching, the temperature or high temperature tempering, there are two secondary hardening effect. Table 3 lists the Chinese used in the manufacture of ball mill lining plate of manganese, chromium and manganese silicon molybdenum, chromium and manganese, molybdenum in low alloy wear-resistant steel chemical composition and application.