What is the quenching equipment, how to detect hardening effect - Foshan constant Yang mechanical and electrical company

by:Hengyang Furnace     2020-10-27
Quenching is a kind of for steel heat treatment process, which needs to use the related machinery and equipment, quenching furnace are described in detail below small make up for the friends of machinery and equipment related professional knowledge, how to distinguish the intermediate frequency and power frequency quenching equipment, and how to test the effect of quenching, the following one by one in detail for your friends.     Quenching furnace equipment mean?     Foshan heng Yang quenching equipment refers to the materials of solid solution treatment or with fast cooling process of heat treatment process of machinery and equipment. Including divided into intermediate frequency quenching furnace, high-frequency quenching furnace, quenching furnace, power frequency digital quenching machine tool and the integration of quenching machine tool. Quenching device itself included by quenching machine, high frequency power supply, cooling device three parts.     Quenching effect: product quenching hardness requirements and testing methods & emsp;   Foshan constant Yang products quenching hardness affected the quenching effect. Workpiece quenching products usually use the rockwell hardness tester, HRC hardness test. Quenching of thin steel plate and table surface quenching products also can test the hardness of HRA. Its thickness is less than 0. 8 mm steel plate, shallow surface quenching products quenching and quenching steel bar diameter less than 5 mm, can convert surface rockwell hardness tester, testing HRN hardness. In the welding of medium carbon steel and some alloy steel, may occur in the heat affected zone and harden quenching phenomenon, easy to produce cold crack, it is to find ways to prevent in the welding process. Due to metal material is hard and brittle after quenching, surface residual stress can cause cold crack, tempering can be used as the basis of hardness is not affected, eliminate one of the means of cold crack. Quenching of its thickness, diameter smaller parts using a more appropriate, for big parts, hardening depth is not enough, carburizing and there are also problems, consideration should be given at this time in adding chromium alloy steel to increase its strength. Quenching is one of the basic means of reinforcement steel material. Martensite in steel is the most hard phase (the iron base solid solution Table 1. ) , so the steel quenching can obtain high hardness, high strength. But the brittle martensite is very big, and after quenching has bigger quenching steel internal stress, therefore should not be directly applied, must be tempered. Steel iron base microhardness value of the solid solution.     Quenching process in today's machinery manufacturing industry has been widely used. Important in mechanical parts, especially in the automotive, aircraft, rockets mostly used in steel after quenching process. To meet this need various parts do worse than other technical specifications and requirements, the future development of all kinds of quenching process. Such as, according to the processing parts, the overall and partial quenching and surface hardening; According to the heating phase change completely, there are totally quenching and incomplete hardening ( In hypoeutectoid steel, & emsp;   The method is also called the subcritical quenching) ; According to the cooling phase change of the content, there are interrupted quenching, isothermal quenching and owe speed quenching, etc. How to distinguish between intermediate frequency and power frequency quenching equipment?     Intermediate frequency quenching power frequency is 1 - 3-10 KHZ, hardening depth 5 mm, with vertical and horizontal machine tool machine tool, is used to heat the slender shaft.     Power frequency 50 hz, power frequency starting cabinet, balancing tank, compensation cabinet, 3 - hardening depth 5 mm, with a vertical machine.     The most striking features within the medium frequency power supply with thyristor ( Silicon controlled rectifier) , power frequency voltage supply power capacitor. Foshan city heng Yang mechanical and electrical equipment co. , LTD. , is the domestic earlier developed in high frequency induction heating equipment manufacturers, gathered a number of specialized is engaged in the induction heating equipment, senior experts research, design, production manufacturing, sales and service in one of the high-tech private enterprises. Has a strong r&d team, rich experience, according to the workpiece and process customized automatic induction heating equipment, free of charge to provide customers with personalized technology solutions. And regions throughout the country more perfect after-sales service system, enabled us to win the trust of many well-known domestic enterprises, experience for them to provide quality products and services, welcome to visit company.
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