Vartis Engineering, based in Gujarat is one of the leading manufacturers and suppliers of stainless steel and alloy steel Globally. With their huge team of skilled manpower and modern technology, the company ensures a superior production quality. The entire team works under the able leadership and guidance of Mr Anant Gajjar. The father-son duet is a perfect blend to impart the traditional techniques and the modern approaches to all the productions being carried out at Vartis Engineering.
1. Normalizing
Normalizing aims to give the material a uniform and fine-grained structure. The process is used to obtain a predictable microstructure and an assurance of the material’s mechanical properties.
Benefits of Normalizing
After forging, hot rolling or casting a material’s microstructure is often non homogeneous consisting of large grains, and unwanted structural components such as bainite and carbides. Such microstructure has a negative impact on the material’s mechanical properties as well as on the machinability. Through normalising, the material can obtain a more fine-grained homogeneous structure with predictable properties and machinability.
2. Annealing
Annealing is a heat treatment process which alters the microstructure of a material to change its mechanical Properties. Typically, in steels, annealing is used to reduce hardness, increase ductility and help eliminate internal stresses.
Benefits of Annealing
Annealing will restore ductility following cold working and hence allow additional processing without cracking. Annealing may also be used to release mechanical stresses induced by grinding, machining etc. hence preventing distortion during subsequent higher temperature heat treatment operations.
3. Tempering
Tempering is a low temperature heat treatment process normally performed after neutral hardening, double hardening, atmospheric carburising, carbonitriding or induction hardening in order to reach a desired hardness/toughness ratio.
Benefits of Tempering
The maximum hardness of a steel grade, which is obtained by hardening, gives the material a low toughness. Tempering reduces the hardness in the material and increases the toughness. Through tempering you can adapt materials properties (hardness/toughness ratio) to a specified application.
1. Oil Quenching
One of the most critical parts in the heat treatment of a metal part is the quench, or the rapid cooling of the part to achieve specified properties. No quenching medium is perfect. There are benefits and drawbacks of each, whether it’s salt, oil, gas or caustic. In a game of trade-offs, oil is the most popular quenching medium because it offers the widest array of benefits to the widest array of parts. We have 12000 liters & 27000 liters capacity of Oil Quenching tank.
Advantages
Oil is preferable to the traditional quenching medium of water because it reduces the risks of distortions or cracking by cooling metals more evenly and more quickly.
2. Water Quenching
Water is able to quench heated metals rapidly as well. It can cool a metal even faster than oil. In a fashion similar to oil quenching, a tank is filled with water and the heated metal is submerged in it. It can also be flushed through a part. One benefit of water is that flammability of the media is not a concern. We have 12,000, 15,000 & 35000 liters capacity of Water Quenching tank.
Advantages
Water quenching is a rapid cooling, where water as a quenching medium extracts heat much faster. Water cooling typically will give you higher hardness but more stressed component.
3. Air Quenching
Air Quenching is simply the type of quenching in which a stream of air is directed over the workpiece to cool it down from above its critical temperature. Shakti heat treatment offers a geared mechanism for rotation of loaded fixture during forced air cooling by high rpm powerful fan to ensure uniform cooling rate throughout the fixture in air quenching.
1. Precipitation Hardening
Precipitation Hardening is a process in which when the metal is heated, it precipitates or solid impurities are formed on the surface, preventing the movement of dislocations in the material. The critical thing to remember here is that dislocations are related to plasticity in the material. Therefore, as impurities prevent the movement of dislocations, the material is hardened, making the material more durable.
Benefits of precipitation hardening
In precipitation hardening process the metal becomes stronger, and leads to several other significant manufacturing advantages such as,
Reduced flexibility
Machinability becomes significantly easier
Durability and strength is increased exponentially
Materials receive higher yield and tensile strength ratings
2. Case Hardening
Case-hardening also called as surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal called the case at the surface.
Benefits of Case hardening
Objects which need to have a hard exterior to endure wear and tear while maintaining a soft interior to withstand shock benefit from this process. The advantages of case hardening are:
Creating a more durable product
Increases wear-resistance of the metal
Increases lifetime of objects
The metal is more flexible
Case hardening makes material easier to weld