Science & Technology During Industrialization

The Creation of Steel

One of the pioneers of the industrialization of America was Andrew Carnegie. He wasn't skilled in the process of making steel, but he invested large amounts of capital to install Bessemer converters in factories. The Bessemer converter transformed wrought iron (pig iron) into steel by blowing cold air through the vessels and then through the molten iron, ridding the iron of any impurities which made it mandible and weak, forming steel. This process was a very simple one where unskilled workers were able to operate it with ease. One of the very first Bessemer converters was installed in Carnegie's own Edgar Thompson Steel Works in Braddock P.A. The factory was able to produce a great amount of steel which cost less by the ton. McClure's magazine documented the results:

"Out of each pot roared alternately a ferocious geyser of saffron and sapphire flame, streaked with deeper yellow. From it a light streamed -- a light that flung violet shadows everywhere and made the gray outside rain a beautiful blue. A fountain of sparks arose, gorgeous as ten thousand rockets, and fell with a beautiful curve, like the petals of some enormous flower. Overhead the beams were glowing orange in a base of purple. The men were yellow where the light struck them, violet in shadow.... The pot began to burn with a whiter flame. Its fluttering, humming roar silenced all else.... A shout was heard, and a tall crane swung a gigantic ladle under the converting vessel, which then mysteriously up-ended, exploding like a cannon a prodigious discharge of star-like pieces of white-hot slag.... Down came the vessel, until out of it streamed the smooth flow of terribly beautiful molten metal. As it ran nearly empty and the ladle swung away, the dropping slag fell to the ground exploding, leaping viciously, and the scene became gorgeous beyond belief, with orange and red and green flame."

Steel Ladle

cement vertical roller mill

For the cement industry were 30,25,20,10,8.8 tons of annual production and other industries use to meet the users of different materials with different yield and grinding requirements. At the same time I also have fine vertical grinding mill, the State Development Center has fine vertical cement mill as the "Eighth Five-Year" period focused on promoting the application of high efficiency, new energy-saving products.
The working principle of vertical roller mill vertical roller mills
1, the main structure and function
Roller is the main material for rolling mill parts. Mill built with two pairs of roller, each pair of rollers mounted on the same shaft, rotating at different speeds.
Disc fixed to the reducer output shaft, the upper part of the disc material bed, the bed material a circular groove.
PRM-type separator mainly composed of vertical roller mill ,roller, disc, compression device, reducer, motor, housing and other components.
Fineness of separation is an important component of the decision, which consists of adjustable speed drives, rotor, guide blades, housing, meals, fighting off the cone material, composed of the outlet, and the separator works similar.
Pressure device is called the grinding pressure of the components provided by the high pressure oil station, hydraulic cylinder, rod, storage and other components, able to exert enough pressure roller grinding of materials.
2, the working principle of vertical roller mill
The material flow through the separator, in the role of guide vanes and the rotor, the coarse material to the disc from the hopper cone, the fine powder with a mill with air, dust collection device in the system to collect, is the product, the material in the contact process with the gas being dried to the required product water, by adjusting the angle and the wind guide vane separator rotor speed can be different fineness of the product.
Motor through reducer drive the disc rotation, the current hot air from the air inlet into the mill, the material from the feed opening falls on the central disc; the centrifugal force, material to the disc edge and moved across the ring groove on the disc by the grinding roll rolling and grinding, to the edge of the disc, moving through the air with the wind at the starting of large particles falling back to disc on the direct re-grinding.

After-cutting roller table

Hot Rolling Mills

Our range of hot rolling mills are extensively used for shaping large pieces of metal, such as slabs or billets. These pieces of metal are heated above their recrystallization temperature and then deformed between rollers to form thinner cross sections. The hot rolling produces thinner cross sections than cold rolling processes with the same number of stages. Hot rolling will reduce the average grain size of a metal, while maintaining an equipped micro structure.

Now, this process, in commercial terms is known as Turn Key project. For e.g. If a foreign company wants to install a hot rolling mill, they would search for the companies who would manufacture/supply/install all the machinery and give them a trial production start-up. Now, not necessarily the turn key project company will be based in the same country, and hence, they have to depend upon foreign turn key project handlers for this project.


Usually, the machinery involved for say a Automatic Hot Rolling Mill (capacity 60,000 mts per year) are as below:


pinion stand

C.I base plate for mill stand and pinion stand

Fabricated base plate for gear box

3Hi 410 mm cast steel mill stand

foundation bolts

MILL AUXILLIARY

BEARINGS

Fibre bearing for Roughing mill

Roller bearing for Intermediate mill

Roller bearing for Finishing mill

MILL AUXILLIARY EQUIPMENTS

furnace exit roller table

billet transfer

mill working roller table

roller table[lifting]

bar transfer stand 1 to stand 2

Furnace charging roller table 10 m long

Billet charging Grate

Rolls for finishing mill

Roller Table

Advantages Of Pouch Packing Machine

There are a number of people as well as manufacturers have been able to make huge profits when the different types of packaging materials came into the market and the people bought them since they were new and hence attractive. Not only this, it made their work of packing and storing things very easy and convenient.  It is a blessing for the people who specially deal in food products. The items can be of any form such as solid or liquid and protected packaging machines are of great help since they package the product in a sturdy and attractive packing. This doesn't damage the product while they are being transported and can be stored for longer durations than usual.

A  very popular style of machine that is now used by many manufacturers is the pouch packing machine. There are a number of types of pouch packing machines that are manufactured by a number of manufacturers. These machine types are as follows:

1.Automatic pouch packing machine
2.Water pouch packing machine
3.Oil pouch packing machine
4.Viscous liquid pouch packing machine
5.Rice pouch packing machine, and many more….

If a person is unable to purchase a machine of the latest technology, he/she can also buy a second hand model or some previous version of the same machine. Of course there will be some difference in its functioning and quality, but the budget is a big constraint. Another thing that can be done is that one can buy latest technology machine by paying the amount of the machine at fixed installments over a period of time.

These machines have made the manufacturing process of many items very easy. Where manual labor was used, today the work has been replaced by machines that work in just a click. It can be easily said that packaging machines of all types have acted like a blessing to the manufacturing industry where very item needs to be packed so that it is delivered to the end consumer in the right condition.

Wire Rod Packing Machine

General Knowledge of Seamless Steel Pipe

Seamless steel pipe is a long steel with hollow sections and has no joints surrounding the steel bar. It is mainly used as a pipeline to transfer the fluid, such as oil,natural gas,water and some solid materials,etc. As compared to the flexural torsional strength in the same light, it is an economic cross-section steel. The seamless steel pipes are widely used in the manufactures  and mechniacal parts,such as the oil pipe, automotive transmission shaft,bicycles aircraft,as well as buliding construction. With steel pipe manufacturing, annular parts can improve the material utilization, simplify the manufacturing process, save material and machining time. For example, the roller bearing rings and the jack sets and so on have been widely made of steel pipes. Cylindrical rube can delivery more fluid since the circle has the largest areas under the same circumference. In addition, the ring cross-section bears internal or external pressure, the force more evenly, so that vast majority of tubular steel pipes are cylindrical rubes . However, the tube also has some limitations, such as in-plane bending conditions, the pipe on the better side, rectangular tube bending strength, and a number of sets of frames, steel-wood furniture on the commonly used square, rectangular tube.


The pressure grade of the pipes:

The parameters of channels characteristics which are determined by the nominal pressure level and wall thickness are called the pressure grade of the pipes.
the determine of the pressure  grades is not only the basis for pipeline design, but also the core of design. It is the basis of the arrangement of pressure pipe, and pressure pipe stress precondition for checking the design. and it is also an important factor which will affect investment and reliability.

Steel Cooling Bed Conveyor

Some of the diverse applications of Stainless steel seamless pipe

Stainless steel seamless pipes have become very common these days and are offered by almost all steel pipes manufacturers. The benefits such as higher corrosion resistance than carbon steel and conventional stainless steel and light –weightiness make the design and construction compact and light. Stainless steel is composed of copper, chromium, nickel, tungsten, manganese, etc. and is therefore rust resistant. Stainless steel seamless pipes can prove to be a cheaper alternative to the nickel alloys, which are very costly. Steel has higher strength which leads to reduced thicknesses of section and therefore has reduced weight. It also exhibits good weld ability in thick sections and the ability to be welded is more in stainless steel. Resistance to stress corrosion cracking: Austenitic steel is prone to such corrosions. The resistance posed by stainless steel to stress corrosion cracking makes this material fit for purposes like Hot water boilers, brewing tanks and desalination, structure of swimming pools, etc.

Some of the advantages of using steel seamless pipes in the industry

Increased strength leading to saving of weight.
It has  better stress corrosion resistance
Price is lower as compared to other alloys
These pipes can handle a lot of pressure and adverse weather condition.

 Section Steel Cooling Bed

casting process vibration device

Casting process vibration device is made up of four parts, oscillation platform, demi-plate spring device, reducer and eccentric shaft device.

Oscillation platform: it is of welded machining structure; the joint part mounted on it for cooling water inlet and outlet can be disassembled rapidly; for the water inlet and outlet of mould and foot roller

Semi-plate spring device: Substituting the upper part’s rigid guiding arm. Lessen the hinged point to ensure stable oscillation.

Reducer: being of pinwheel structure, long life span and high efficiency.
Eccentric shaft device: the swing will be adjusted by adjusting the position of eccentric shaft and eccentric sleeve.

casting process vibration device