CNC machining, Molding, Metal parts, Die casting, Lead acid battery machine

Steel machining parts ,  Injection mold  or  Dies  making,  Quenching and tempering  be required to treat on steel block to make them more hard and with long using life. mold making Quenching and tempering : The  heat treatment method  of high temperature tempering after quenching is called quenching and tempering. High temperature tempering refers to tempering between 500 and 650 C. Tempering and tempering can make the properties and materials of steel adjusted to a great extent. Its strength, plasticity and toughness are good, and it has good comprehensive mechanical properties. metal fixture Tempered sorbite was obtained after quenching and tempering. Tempered sorbite is formed when martensite is tempered. It can be distinguished more than 500 to 600 times under optical metallographic microscope. It is a composite structure with carbide (including cementite) spheres distributed in ferrite matrix. It is also a tempering structure of martens...

Heat treatment  always used in steel iron metal parts to improve the hardness, to get quality  machined parts  which met mechanical design requirement. Heat treatments functions : improving the mechanical properties of materials eliminating residual stress improving the machinability of metals. metal machining part be heat treated According to different purposes, heat treatment process can be divided into two categories:  preparatory heat treatment  and  final heat treatment . 1.PREPARATORY HEAT TREATMENT The purpose of preparing heat treatment is to improve processing performance, eliminate internal stress and prepare good metallographic structure for final heat treatment. Its heat treatment process includes annealing, normalizing, aging, tempering and so on. 1) ANNEALING AND NORMALIZING Annealing and normalizing are used for hot-worked blanks. Carbon steel and alloy steel with carbon content more than 0.5% are usually annealed to redu...