A Brief Introduction to the Programmable Logic Controller

The term programmable logic controller (PLC) refers to the industrial digital computers that are designed for controlling various manufacturing equipment such as industrial robots, escalators, power stations, and assembly lines. These sophisticated devices are used to control production processes where dependable controls, flexible programming, and ease of troubleshooting is of immense importance.

The significance of industrial computers increases in applications where precision with zero error is critical. Initially, it was the automotive industry that utilized computer-controlled systems in order to replace cam timers and hard-wired relays. Now, computer-driven tools have become a vital part of industrial process control and factory automation.

Unlike personal computers, PLC is capable of performing in harsh industrial environments where temperature, humidity, dust, mechanical shocks and other hazards are prevalent. Manufacturers need a variety of equipment in order to produce a product and make it work for the end users.

All the equipment or devices working on producing something in a facility needs to be organized in terms of time intervals. For instance, in the automobile industry, one device or a set of devices works on painting car exterior and the other machine works on engine parts. One of the functions of an industrial digital computer is to set the specific time frame for machines so that all the processes can be performed in a perfectly harmonious manner.

Industrial computers were introduced in the 1960s and before that, manufacturers relied on cam timers, relays and other similar kinds of devices to streamline their manufacturing processes. They control a wide range of applications from small production systems to large processing plants. Some of the advantages of PLC include:

  • Ease of maintenance and installation
  • Accuracy and dependability
  • Cost-effectiveness
  • Low power consumption
  • Higher flexibility and integration

Central Processing Unit (CPU), memory, and input & outputs are the three fundamental component of an industrial digital computer. Like in the personal computer, CPU plays the part of a brain in a computer as it performs all the communication, arithmetic, logical and memory related operations. The memory component in PLC operates almost the same way as that of personal computers.

As mentioned earlier, the ability to perform effectively for years in harsh industrial environments is what makes PLCs different from personal computers. A digital computer has to be flexible and configurable. The 21st Century process control expects functional flexibility, superior performance, and a smaller form factor from a control system.

The rapid development in the industrial automation technology has made it possible for manufacturers to produce high-quality products cost-effectively and at large scales. Powerful industrial computers, robots, sensors, intelligent and automated devices are the present and the future of modern industries. It would be hard for industries to stay competitive in future without embracing the modern industrial technologies.

History of Industrial Metal Bending

Metal bending processes are used to form pipes or tubes that can be used for different applications such as petroleum pipe lines, handles, as freeway signs, in power plants and more. There are different machines as well as processes that are used to bend metals these days however this was not the case in the past.

In fact if you had to trace back the history of metal bending it goes back to the ancient Chinese civilizations. This is where reeds were used as tubes to transport water. In other parts of the world, hollow trees were used to transport water from one place to another. Later as newer technologies were developed, manmade tubes were created and machines that would help create tubes and bent tubes were first developed. Cast iron was used later on in England as part of industrialization to form pipes and tubes but this was manually done. This requirement was mainly due to the creation of the new railways network and manufacturing industry set up. Later on as technologies developed, converter furnace processes was introduced and these processes helped produce hollow bars as well as malleable low carbon steel. With the onset of World War II further aided to the metal bending industry as there was a huge requirement for pipes and tubes in aircraft, ships as well as automotives.

Currently, with the advanced technological developments as well as computerization, metal bending is done using different processes and machines. In certain specific cases even pre programmed robots are also used to perform heavy duty metal bending tasks. These days there is a lot of demand for pipe benders as they are used in different industrial applications. Larger and powerful benders are used for heavy industrial applications. Piping as well as mandrels is used to support as well as secure the pipe while the metal is being pushed to be bent. The ram, which is the upper part of the press, is used to shape the metal as well as form different shaped bends.

The uses of pipes bent are plenty. They are used in marine vessels, tanks, windmills as well as trains too. They are also used for architectural as well as structural applications and they are also used in stadiums, skyscrapers, bridges, canopies, homes, stores, stadiums and more.

There are different metal bending service providers and you find the one who caters to your needs depending on your requirements.

Isolast(R) J9876 – Is It the Ultimate Material for Mechanical Seals?

Magic Bullet of Mechanical Seals – One Trelleborg Material Fits Most Sealing Requirements

Trelleborg Sealing Solutions, a leading provider of sealing technology, has just launched Isolast(R) J9876, which is a brand new perfluoroelastomer that has numerous properties particularly useful for mechanical seals. One thing that sets the compound apart from others is that there’s no need to use multiple grades of materials that support various applications.

Even better, among all the perfluoroelastomers available in the market, the Isolast(R) J9876 offers the widest range of media resistance at increased temperatures. As a result, the compound from Trelleborg provides remarkable long-term retention of physical properties.

The Many Applications of Isolast(R) J9876 Mechanical Seals

Isolast(R) J9876 mechanical seals work well with practically all media. It’s highly resistant to extreme temperatures, and can be used in applications that involve water and steam. It also complies with USP Class VI standards, and can be used in the pharmaceutical industry.

According to Steven Farnsworth, the CPS processing equipment segment manager of Trelleborg Sealing Solutions Americas, the Isolast(R) J9876 is the newest breakthrough material in sealing technology. It is designed to offer a balance between exceptional media compatibility and impressive thermal resistance.

Farnsworth added that another reason why this perfluoroelastomer is ideal as a mechanical seal material is that it has an enhanced compression set as well as surprisingly delightful temperature capabilities. All these means that Isolast(R) J9876 can stand up to higher temperature and chemical exposure without losing various mechanical properties that make the compound great for sealing.

Isolast(R) J9876 – What Can It Do?

The temperature range of the compound is from 19 to 527 degrees Fahrenheit (-7 degrees to 275 degrees Celsius) and its peaks go up to 599 degrees Fahrenheit (315 degrees Celsius).

The perfluoroelastomer seal also comes in different forms, such as gasket, O-Ring, moulded part, and rubber-to-metal bonded components, which include gate and door seals.

Other applications for Isolast(R) J9876 include:

· Pumps

· Chemical processing systems

· Valves

· Refineries

· Power generation equipment

· Semiconductor applications that aren’t directly subjected to plasma sources

About Trelleborg Sealing Solutions

One of the top providers of sealing products, Trelleborg Sealing Solutions is a developer, maker, and distributor of precision mechanical seals. The markets it supports include the industrial, aerospace, and automotive sectors. It has over 20 production centres as well as 40 marketing companies around the world.

Among the brands found in the company’s portfolio are:

1. Chase Walton

2. Busak+Shamban

3. Forsheda

4. Dowty

5. Palmer Chenard

6. GNL

7. Skega

8. Shamban

9. Stefa

Trelleborg’s array of proprietary materials and products include Zurcon, Turcon, Orkot, Stepseal, Isolast, and Wills Rings.

A global industrial group that specializes in advanced polymer technology, Trelleborg has been developing high-performance sealing products and solutions specifically for demanding industrial applications. The Trelleborg Group employs approximately 20,000 employees in over 40 countries. The Group is made of:

· Trelleborg Automotive

· Trelleborg Engineered Systems

· Trelleborg Wheel Systems

· Trelleborg Sealing Solutions

Ever since 1964, Trelleborg’s share has been included in the OMX Nordic List, Large Cap, and in the Stockholm Stock Exchange. Trelleborg has long been playing a major role in the mechanical seals industry.