Anhui annealing furnace, trolley type resistance furnace

Description :

　　Annealing furnaces are divided into box type annealing furnace, trolley type annealing furnace, well type annealing furnace, vacuum annealing furnace, hood type annealing furnace, furnace body mobile annealing furnace, pit type annealing furnace, spheroidizing annealing furnace, etc

　　The purpose of annealing is to heat steel with a structure deviating from the equilibrium state to an appropriate temperature, hold it for a certain period of time, and then slowly cool it (with furnace cooling) to obtain a heat treatment process for the equilibrium state structure.

　　There are many types of annealing processes for steel, which can be divided into two categories based on heating temperature: one is annealing above the critical temperature (Ac1 or Ac3), also known as phase transformation recrystallization annealing, including complete annealing, incomplete annealing, spheroidization annealing, and diffusion annealing (homogenization annealing), etc; Another type is annealing below the critical temperature, including recrystallization annealing and stress relief annealing. According to the cooling method, annealing can be divided into isothermal annealing and continuous cooling annealing.

　　1. Complete annealing and isothermal annealing, as well as complete annealing and weight crystallization annealing, are generally referred to as annealing. It is a heat treatment process that heats steel or steel to 20-30 ℃ above Ac3, holds it for a sufficient period of time, fully austenitizes the structure, and slowly cools it to obtain a nearly equilibrium structure. This annealing is mainly used for casting, forging, and hot-rolled profiles of various carbon and alloy steels with hypoeutectoid composition, and sometimes also for welding structures. Usually used as the final heat treatment for some non heavy parts, or as a pre heat treatment for certain workpieces.

　　2. Spheroidal annealing is mainly used for hypereutectoid carbon steel and alloy tool steel (such as steel grades used in the manufacture of cutting tools, measuring tools, and molds). Its main purpose is to reduce hardness, improve machinability, and prepare for future quenching.

　　3. Stress relief annealing, also known as low-temperature annealing (or high-temperature tempering), is mainly used to eliminate residual stresses in castings, forgings, welded parts, hot-rolled parts, cold drawn parts, etc. If these stresses are not eliminated, it will cause deformation or cracks in the steel parts after a certain period of time or during subsequent cutting processes.

　　Annealing furnace is a national standard energy-saving periodic operation furnace, mainly suitable for heating in heat treatment workshops of steel mills, special steel, mechanical processing, chemical machinery, heavy industry, metallurgical smelting, casting, forging, environmental protection equipment, machinery supporting enterprises, loaders, shipbuilding industry, military industry and other industries.

　　The main furnace types include trolley type annealing furnace, well type annealing furnace, box type annealing furnace, hood type annealing furnace, etc. They are divided into high temperature furnace, medium temperature furnace, and low temperature annealing furnace. The operating temperature of high temperature furnace is within 1200 ℃, medium temperature furnace is within 950 ℃, and low temperature tempering furnace is within 650 ℃. They are selected according to their respective product characteristics, and the furnace size and load capacity are ordered according to customer requirements.

　　Control adopts contactors, thyristors, solid-state, modular, electronic digital display, intelligent digital display, computer PID、PLC、 Remote control, centralized control, programming control, recording with central garden diagram, long circle diagram with multi-point paper recorder, and can also use LCD paperless recorder for recording.

　　Structure: The furnace body is constructed using a module made of full fiber aluminum silicate spinning blanket. The furnace bottom is made of lightweight insulation bricks and heavy refractory bricks. The heating elements are made of resistance wires and resistance belts. The furnace shell is made of steel plates and section steel. The furnace door and trolley are mechanically driven; The specific configuration is designed and equipped according to customer and furnace temperature requirements.

　　Heat treatment products: Suitable for annealing heat treatment of various processed products, such as stainless steel annealing, steel ingots, valves, flange rings, pressure vessels, welded parts, rolling rods, steel pipes, steel wires, steel balls, castings, forgings, cast iron, blades, high-speed steel, tool steel, automobile axles, diesel engine gearboxes, mining machinery, loader bridge arms, etc.

　　The specific model price needs to be discussed in person by phone!

AfterSalesService :

• Anhui Annealing Furnace