Metal Quenching
AFI Industrial Co., Ltd. has experienced technicians to provide customers with metal quenching services, which can improve the hardness and wear resistance of metal parts, extend the service life of products, and bring greater economic benefits to customers.
Metal Quenching Process
AFI Industrial Co., Ltd. uses advanced equipment and technology to change metal materials' organizational structure and properties by heating and rapid cooling. Heat treatment can make the material obtain excellent properties such as high hardness, high strength, low toughness, and high wear resistance. The quenching process mainly includes four stages: preheating, heating, heat preservation, and cooling. In the quenching process, according to the characteristics of the material, we choose the appropriate coolant and control the temperature so that customers get high-quality products.
Preheating
The metal parts are put into the furnace to preheat so that the temperature of the metal material rises evenly to a certain temperature, which can reduce the internal stress of the material and make the metal not easy to crack.
Heating
The metal parts are fed into the quenching furnace and heated to a certain temperature. Different metal materials and required hardness require different heating temperatures.
Heat Preservation
After reaching the required heating temperature, it is necessary to maintain thermal insulation for a period of time, so that the organization inside the material reaches thermal balance.
Cooling
After the end of insulation, the material is cooled rapidly to achieve the purpose of quenching. There are a variety of cooling methods, including water and oil quenching.
Customized Quenching Service
AFI Industrial Co., Ltd. is committed to providing customers with professional heat treatment services. We use advanced equipment and technology to ensure that every workpiece achieves optimal hardness and strength during precisely controlled heating and rapid cooling processes. Our services cover the full range of needs from small precision parts to large industrial components, and we are committed to providing customers with reliable, efficient and customized solutions to help customers improve product performance and enhance market competitiveness. To meet customer demand for product quality.
Quenching Process
Quenching is a metal heat treatment process, in the heat treatment process, the metal workpiece is heated to a certain temperature to obtain a uniform austenitic structure, and then it is quickly immersed in water, oil or other cooling media for rapid cooling to form a higher hardness of martensite or other hardened tissue, thus significantly improving the hardness and wear resistance of the workpiece. To meet the quality needs of customers.
before heat treatment
after heat treatment
Quenching Equipment
AFI Industrial Co., Ltd. has a complete range of equipment for quenching heat treatment. It heats the metal workpiece to a certain temperature and then cools it quickly to obtain the required hardness and strength to meet the customer's demand for product quality.
Automatic Heating Equipment
Precise control of heating processes ensures consistency and repeatability.
Cooling Circulation System
Maintain the temperature and flow of the circulation system to ensure even cooling.
Quench Material
The quenching process is mainly used for steel parts, especially for improving metal parts' hardness and wear resistance. The types of steel include medium carbon steel (such as 35, 40, 45, and 50 steel), low carbon tempered high strength steel (carbon content ≤0.25%), medium carbon tempered high strength steel (carbon content 0.25%~0.45%), heat resistant steel and low-temperature steel. Stainless steel, carbon structural steel, cast iron, and some of its alloy steel can also be quenched, each material quenching treatment has its specific process requirements and purposes, and choosing the right material for quenching can significantly improve the performance of the workpiece.
Quenching Quality Detection
The quality inspection of quenching is an important step to ensure that the performance of metal parts meets the design requirements. AFI Industrial Co., Ltd. adopts advanced process control technology to monitor and accurately control key parameters.
First, hardness testing after Hardness is an indicator of the material's ability to resist plastic deformation. The metal after We usually use a Rockwell hardness tester to test the hardness value of metal after heat treatment.
Secondly, metallographic inspection is an important means to evaluate the quality of The microstructure of the metal is observed through a metallographic microscope to detect the uniformity of the tissue distribution.
Next, dimensional stability after rapid cooling during therefore, it is necessary to measure the size of the parts.
In addition, deformation control after due to thermal stress and tissue transformation stress during In particular, these deformations of precision parts may cause them to be unable to be used normally. Therefore, we will conduct strict deformation detection on the partsTherefore, we will conduct strict deformation detection on the parts.
Crack detection is also an indispensable part of too-fast cooling speed. The presence of cracks will seriously affect the strength and service life of the parts.
Finally, the surface quality after surface cracks, oxidation, decarburization, and other defects may occur during the these surface defects not only affect the appearance but also may affect the corrosion resistance and fatigue strength of the parts. We usually conduct visual inspection to inspect the surface quality.
The quality of metal heat treatment through these inspections, can ensure that the quenched metal parts have the required performance and service life to meet the needs of customers.
Microstructure Examination
Hardness Measurement
Dimension Measurement
Appearance Inspection
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Frequent Asked Questions
It is a heat treatment process that heats and then rapidly cools a metal to increase its hardness and strength.
Because it can greatly affect the final properties of a metal by changing its molecular structure.
Quenching is commonly used for iron, steel, aluminum, and some alloys, but can also be used for non-metallic materials such as glass and polymers.
The process of heating a metal at a high temperature and rapidly cooling it causes a rapid change in the internal structure of the material, resulting in smaller, more uniform grains, which can increase the hardness and wear resistance of the metal.
Depending on the material and the desired properties of the product, the methods that can be selected include air、oil、water and salt quenching.
Metals can warp or crack during rapid cooling, as well as develop internal stresses that can affect the final shape and strength of the metal. It is important to carefully control and monitor the quenching process to avoid these problems.
