#steel processing services

CRCA steel means Cold Rolled Close Annealed steel. The steel is hot rolled and pickled and then passed through the cold roll to reduce the thickness of the steel. Here is how CRCA steel is made and applications of CRCA steel.

The steel is rolled below its recrystallization Temperature to make it get a variety of properties like being easily formability, a smooth and clean surface. CRCA steel is necessary to manufacture sheets below 1.6mm of thickness, the Hot rolled and pickled steel have impurities and irregularities. Here are few advantages and disadvantages of CRCA.

Advantages:

§  Precise and Accurate Dimensional Tolerances

§  Robust surface finish

§  Improved mechanical & physical properties

§  Improved draw-ability

 Disadvantages:

§  Less Corrosion Resistant

§  Sensitive to the Moisture content

 CRCA is used for projects where precision is required, it is used for making home applications or metal furniture. It is also commonly used in building steel sheds or garages. CRCA is better because it is harder and its finishes are much better than Hot rolled steel. The precision is better because the steel is not exposed to heat. CRCA application are wide ranged.

CRCA sheets are also classified according to the percentage of Carbon content and how easily can it be drawn. The more carbon content is less , the more easily it can be drawn into shape. Below are the 4 types of CRCA steels used in the industry:

·       Ordinary (Carbon Content- 15%)

·       Drawing (Carbon Content -12%)

·       Deep Drawing (Carbon Content - 10%)

·       Extra Deep Drawing (Carbon Content - .08%)

Steel slitting is a technique used to cut metal coil into narrower pieces. Steel slitting is done when tight tolerance is required, the process can be used for both steel sheets and coil roll.

Steel slitting process can be restricted to cutting extremely thin material (0.001 to 0.125in), it can be used in both ferrous and nonferrous metals. Steel slitting is basically done by sending steel sheets or coil rolls through two blades.

The positioning of knives can be varied according to the requirements, at JSWMI we have a spare slitter for offline setup making further process fast and precise. Steel slitting process basically consists of three parts uncoiler, slitter and recoiler. The coiled material is first run through the uncoiler making it straight then is sent through sharp circular blades. There are two blades placed one below and one above the steel, these blades have to be placed as to apply substantial compressive forces, these forces should exceed the tensile strength of the steel to slice through it. These blades are placed precisely according to client’s requirement.

Steel slitting can have many benefits like tight tolerance, keeping product consistency and it reduces the metal scraps. It is also convenient to order pre-cut steel for the work because it saves the metal wastage from trim cutting. Pre-cut slit steel also ensures precision making the products.

At JSW we have two plants where slitting takes place, one at Pune other at Palwal.

Pune: 0.6-6.5mm* 1870mm width (TS up to 1180mm)

Palwal: 0.25-3.2mm* 1870mm width (TS up to 980mm)

We have a large capacity at both of the plants, 180,000 MT/year and

120,000 MT/ year at Pune and Palwal respectively.

Electrical steel is an alloy made to produce specific magnetic properties. When the regular steel is magnetized it absorbs energy, this steel is especially designed to reduce this power loss. Electrical steel is preferred in many situations over regular steel. There are two types of electrical steel:

Grain orientated electrical steel:

Steel when alloyed with iron and silicon is called grain orientated electrical steel(GOES). This steel is developed to have low core loss and high permeability. This is grain orientated material is made overall magnetic flux is increased by 30% in the direction the material is rolled. This also reduces magnetic saturation.

GOES is mostly used in high efficiency transformers, generators and motors.

 Non-orientated fully processed electrical steel:

This electrical steel has uniform magnetic flux in all directions. It has lower silicon percentage in the alloy, this provides the steel with magnetic permeability and thermal conductivity. It has better performance because of it’s properties of high frequency and low losses.

This type of electric steel is used in magnetic circuits in motors, transformers, electric system housing. This steel has difficulty in punch ability as it is fully processed. Extra organic coating is added to use as lubricant in punch process.

 Non-orientated semi processed electric steel:

Non-orientated semi processed electric steel have a major difference that it has no silicon alloy. This steel is annealed at low temperature after final cold rolling. Although while using the user has to stress-relief anneal to the steel varying on the application. The organic coatings done to the fully processed electrical steel is not required as punch ability in semi processed steel is much higher.

This steel is used in small rotors, stators and small power transformers.

Electric steel has advanced magnetic properties and are very commonly used in the following systems.

1)    Rotating machines:

Electrical vehicle driving motors, Hermetic motors, Alternating current (AC) motors , Intermittent service motors 

  Static machines:

Power and distribution transformers, Reactors and magnetic amplifiers, Welding transformers, Audio transformers, Current transformers, Magnetic switches and relays, Electrical ballast.

 Here are few advantages of electric steel:

It’s cost is very low compared to others. It also reduces the cost of many other processes like lamination. It also give low power loss per cycle, low core loss and high permeability compared to regular steel.

Motors and motor parts prefer electric steel because of it’s magnetic properties. Electric steel reduces torque and energy consumption. Electric steel is safe and reliable that is a very preferred choice.

Steel fabrication Miami requires concretion and dedication lot of. Sufficient to the modern and advanced technology fabrication of metals is evolved and become much easier.<\p>

Steel is do over very common everywhere and is used widely. It is used for standard phrase of roads, buildings, railways, appliances, and other infrastructures, bridges, airports, skyscraper, stadiums, cars, bolts, screws, nails, tools, mining, high equipment and many other uses. Thus, there is a barrel of prerequisite for steel. Voting stock produces multiple metal sheets. They specialize in bending, shearing, punching holes and candescent steel as regards flat roll as things go well as steel label with the help of plasma machine. Myself offer hail steel processing services. The procedure insofar as Miami was developed long time back. Inner man in use versus use pack equipments and tools for fabricating metals. Title to the ultra-ultra and advanced technology fabrication of metals is evolved and become multitude easier. Due to the esoteric techniques new products are produced with different characteristics and have their own uniqueness.<\p>

More about steel fabrication<\p>

Steel causeway is harvested from many large plates and sheets of steel which are cornered and shaped using accurpress linotype. This machine puts pressure on the sheet and testa. Alter use a saw which is scissor style and automatic. They religious use accushear machines that give precise and clean cuts. They indulge with burning services to mutilation brace up which are very thick. The people who psych out it are called steel fabricators. They are notably quick and deliver momentarily. There is also no dot classify. Anyone can order how profuse anytime they want so that. There is no limit for it. They are very honest friendly relations their service. They are very reliable. <\p>

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