ecafez21

[ecafez21]

Transmission tower maintenance tips

India’s power requirement is going to be 1650.59 billion units by 2023. Transmission towers play a very important role in fulfilling the growing needs. Transmission towers support the high-voltage conductors of overhead power lines. Some of the common transmission towers that are commonly seen in India are:

●      Monopoles

●      Lattice towers

●      High mast poles

Why is hot rolled steel preferred for transmission towers?

Transmission towers are usually made of hot rolled steel. Hot rolled steel is preferred for transmission towers because they have greater mechanical strength, longer life, and permit the use of longer spans. But over a period of time the transmission towers are bound to have  some wear and tear so they need proper maintenance. Here are some of the important transmission tower maintenance tips:

Timely washing of  insulators: 

The salt in the air or acid rains can decrease the efficiency of  parts of transmission towers which are required for uninterrupted power supply. Increased insulator pollution is another major issue faced by the transmission towers. When insulators are dry, there is no decrease in the strength of insulation but when the insulators are wet, the contaminated surface forms a conductive layer over it which can lead to electricity leakage. In this case, line-live washing is used to avoid any malfunctioning of the transmission line.

If transmission lines are in cold areas, timely removal of ice is necessary:

It is normal for the windward side of the transmission lines to get covered with ice. One of the best ways followed by many countries is to stop the operation of one of the operating towers, this prevents the condensation of ice over the transmission line. If there is still ice over them, increasing the temperature of the transmission lines can help in melting the snow.

Removal of corrosion or using methods to prevent corrosion:

High humidity can cause corrosion, which can affect the efficiency of the towers. Painting the towers with corrosion resistant paint is an effective way to prevent corrosion. Galvanised steel can also be used in the manufacturing to prevent corrosion.

Timely ground survey: 

Ground survey can help in surveying the lower parts of the transmission tower. If any problem is discovered, it can be fixed immediately by maintenance personnel. Aerial surveys can be conducted using drones or helicopters to check the upper portions of the transmission tower.

Grid hardening method: 

One of the other important strategies is grid hardening. Under this the older worn out parts will be replaced with the newer parts. This will reduce the chances of fatal mishaps.

If you are looking for hot rolled steel for transmission & distribution, check out Tata Astrum, Tata Astrum Solar, and Tata Astrum Super. These brands offer hot rolled steel coils for:

●      Monopoles

●      Lattice Towers

●      High Mast Poles

They are leading hot rolled steel brands offering segment specific products to ensure application suitability.

[ecafez21]

What is the principle of hot rolling?

Hot rolled steel coils are used across industries for various purposes. From railways to construction projects, they are used as they offer good workability and have little to no tolerance stresses. Here we share with you a few useful insights on the principle of hot rolling:

What is hot rolling ?

Hot rolling is a metalworking process in which steel is heated above the recrystallization temperature to increase its mechanical strength. Hot rolling is typically done over 900 to 1000 degrees celsius. This high temperature allows the steel to be easily shaped and reformed, without breaking.

How hot rolling is done?

Hot rolling is used to create larger, more complex shapes and to produce thinner materials with a lower surface roughness than cold rolling. The steps involved in hot rolled are as follows:

● Step 1: To process hot rolled steel, a large, rectangular length of metal, called a billet, is used. The billet is heated above its recrystallization temperature. This can be done in a variety of ways, but most commonly it is done in a furnace.

● Step 2: Once the steel has reached its recrystallization temperature, it is then passed through rollers. The rollers apply pressure to the steel, which helps to shape it into its desired form.

● Step 3: After the steel has been passed through the rollers, it is then cooled. The cooling process helps to solidify the steel so that it can be used for its intended purpose.

● Step 4: To make hot rolled sheets, the metal rolled into coils and left to cool. For bars or plates, materials are sectioned and packaged.

What are the types of hot rolled steel products?

Some of the common types of hot rolled steel products are:

●      Flat

●      Long

●      Seamless

●      Specialty

Why is hot rolling done?

Hot rolling is done to improve:

●      Toughness and strength

●      Ductility

●      Resistance to vibration and shock

●      Formability

●      Weldability

What are the benefits of hot rolled steel?

Hot rolled steel offers several manufacturing advantages, such as:

●      Lower cost: When compared to cold rolled steel, hot rolled steel is less expensive because it involves less processing.

●      Better workability: The processed material in hot rolled steel is easy to form and shape. It is because it occurs at elevated temperatures.

●      Little to no internal stress: The process of hot rolling involves cooling the steel gradually. It allows the material to normalise its structure.

Hot rolled steel applications

The most common applications of hot rolled steel are:

●      Agriculture

●      Automotive

●      Lifting & excavation

●      Pressure vessels

●      Railways

●      Shipbuilding

If you are looking for hot rolled steel for railways, auto components, shipbuilding  and commercial buildings, explore Tata Astrum, Tata Astrum Solar and Tata Astrum Super. They are leading brands offering segment-specific hot rolled steel coils.

[ecafez21]

COVID-19 has re-emphasized the acute need to be conversant with the 'Financial Impact of Operations & Supply Chain'. This is an important shift that professionals have to make towards adopting a “financial impact” driven decision-making approach. The webinar on this topic had the following objectives: 1) Appreciate the Cost Drivers in Operations & Supply Chain 2) Understand the key Financial Indicators impacted by Supply Chain. The expert is Mr Pinak Kulkarni, a well-known supply-focused Supply Chain practitioner of best in class improvement tools and techniques.with two decades of extensive & global experience in Manufacturing Industry & Supply Chain Coaching, Consulting and Training.

[ecafez21]

Useful insights on Tata Astrum, Tata Astrum Solar, and Tata Astrum Super

If you are planning to buy hot rolled steel coils, it will be useful for you to know about Tata Astrum, Tata Astrum Solar, and Tata Astrum Super. They are among the leading hot-rolled steel brands in India. Hot rolled steel coils are a type of steel coils produced by passing the steel through hot rollers. This process can be done at various temperatures but is most often done at high temperatures. This high temperature gives the steel more strength and makes it easier to work with. Hot rolled steel coils are used in various applications, including construction, automotive, and appliance manufacturing. Over 57 million metric tonnes of hot-rolled steel plates were produced worldwide in 2019.

In India, Tata Astrum, Tata Astrum Solar, and Tata Astrum Super are among leading hot rolled steel brands known for offering steel products designed to meet the needs of specific market segments. Here we share with you some useful insights on these leading hot rolled steel brands:

1. Tata Astrum

Tata Astrum is the first hot-rolled flat steel brand launched in 2012.  Their hot rolled steel coils are known for their uniform chemical & mechanical properties. The brand offers a wide range of grades in hot rolled offerings. Tata Astrum also offers support from product application engineers so that its customers can choose the correct grade of products. The brand has a pan-India distributor network.

The applications of Tata Astrum hot-rolled steel coils include:

●      Automotive

●      Lifting and excavation

●      Agriculture

●      Fabrication of projects

●      Pre-engineered buildings

●      Shipbuildings

●      Railways

●      Pressure vessels and boilers

●      Transportation and distribution

2. Tata Astrum Solar:

Tata Astrum Solar was launched to further India’s mission of tapping the solar energy potential. Tata Astrum Solar's hot-rolled coils are known for their durability and enhanced strength. Their hot rolled steel coils have high strength grade and enhanced corrosion protection. The brand has a strong service centre network. Tata Astrum Solar offers steel that is of superior quality for the structures of solar module mounting. It is the best steel brand for hot rolled steel for solar industry.  

3. Tata Astrum Super:

Tata Astrum Super was launched in 2019. They offer quality hot-rolled steel in the retail segment. Tata Astrum Super caters to a wide range of applications, such as the fabrication of agricultural equipment, trolleys, and trucks. The brand has been playing a vital role in strengthening agriculture and transportation infrastructure. Their hot rolled steel coils are known for their bright surface lustre, superior aesthetics, tighter tolerances, enhanced durability, standardised packaging, high bendability, and unmatched longevity.

The applications of Tata Astrum Super include:

●  Agri implements - Rotavator, thresher, dozer, tiller, rice sheller, cultivator, etc.

● Body fabrication - Trailer, trolley, truck, and bus bodies.

● Gates & Grills