como é feito trilho de trem
Summary
TLDRThis video showcases a sustainable process of manufacturing train rails from recycled steel. Scrap steel from various sources is melted at 1650°C, mixed with additives for durability, and shaped into blooms. The blooms are then reheated and rolled into rails, which are cooled, straightened, inspected, and cut to the required lengths, often 25 meters. The process highlights efficient recycling and production methods.
Takeaways
- 🚄 The train wheels run on the inside of the rail to maintain stability on the tracks.
- 🔄 The plant manufactures train rails using 100% recycled steel sourced from scrap yards, food cans, and leftover materials from the rail-making process.
- 🧲 Electromagnets are utilized to lift and move scrap steel into a charging bucket for processing.
- 🔥 A furnace with an intense electric current melts the scrap steel at a high temperature of 1650 degrees Celsius.
- 🛠️ Carbon, manganese, and other elements are added to the molten steel to enhance its durability and strength.
- 🛢️ The alloy is protected from oxygen exposure by flowing it through a ceramic tube, ensuring the quality of the metal.
- 🗜️ The molten metal is then shaped into continuous rectangular blocks called blooms through molds.
- 🔥 The blooms are reheated in a furnace for 5 to 7 hours at 1250 degrees Celsius to soften the steel for further shaping.
- 🏗️ A Rolling Mill is used to elongate each bloom, more than quadrupling its length for rail formation.
- ✂️ The rails are cut to size, with the cut-off pieces returned to the scrap yard for recycling.
- 🔍 After cooling, rails undergo a quality check, including a visual inspection using a mirror to examine both the top and bottom surfaces.
Q & A
What is the purpose of the train wheels rim running on the inside of the rail?
-The train wheels rim runs on the inside of the rail to keep the train on the track.
Where does the steel for the train rails come from?
-The steel for the train rails comes entirely from recycled steel sourced from scrap yards, food cans, and recycled pieces from the rail-making process itself.
How are the scraps collected for the rail production?
-Electromagnets are used to pick up the scrap steel and dump it into a charging bucket.
What is the role of the furnace in the rail production process?
-The furnace melts the scrap steel at 1650 degrees Celsius.
What elements are added to the molten steel to make it more durable?
-Carbon, manganese, and other elements are added to the molten steel to enhance its durability.
Why is a ceramic tube used in the process?
-A ceramic tube is used to shield the alloy from exposure to oxygen, which would otherwise ruin the metal.
What are the continuous rectangular blocks called that are extruded from the molds?
-The continuous rectangular blocks extruded from the molds are called blooms.
How long does it take to reheat the blooms in the furnace?
-It takes five to seven hours to reheat the blooms in the furnace to 1250 degrees Celsius.
What does the Rolling Mill do to the reheated blooms?
-The Rolling Mill elongates each bloom more than quadrupling its length.
How are the rails cooled after being cut to size?
-The rails are laid out to cool to about 500 degrees Celsius, then piled in a holding box by an electromagnet where they sit for 10 hours until they cool to about 90 degrees Celsius.
What is the purpose of the rollers at the end of the production line?
-The first set of rollers flexes the rail vertically to straighten out any slight curvature caused by heating, shaping, and cooling.
What is the standard length of the rails ordered by railways?
-The standard length of the rails ordered by railways is most often 25 meters.
Outlines
🚂 Recycled Steel Train Rails Production
This paragraph describes the process of manufacturing train rails from recycled steel. Scrap steel from various sources such as scrap yards, food cans, and previous rail production is collected and melted in a furnace at 1650 degrees Celsius. The molten steel is then treated with carbon, manganese, and other elements to enhance its durability. The alloy is shielded from oxygen during pouring into molds, forming blooms. These blooms are reheated and shaped in a rolling mill, where they are elongated and cut to size. The rails are cooled, inspected, and finally cut to the required length, often 25 meters, for railway orders.
Mindmap
Keywords
💡Recycled Steel
💡Electromagnets
💡Furnace
💡Alloy
💡Ceramic Tube
💡Blooms
💡Rolling Mill
💡Scrap Yard
💡Electromagnet
💡Rollers
💡Standard Length
Highlights
Train wheels run on the inside of the rail to keep the train on the track.
The plant manufactures train rails entirely from recycled steel.
Recycled materials include scrap steel from scrap yards, food cans, and waste from the rail-making process.
Electromagnets are used to pick up and move the scrap steel.
A crane drops the scrap steel into a furnace for melting.
An intense electric current melts the scrap steel at 1650 degrees Celsius.
Carbon, manganese, and other elements are added to the molten steel to enhance durability.
The alloy is shielded from oxygen exposure during the pouring process to prevent metal degradation.
Molten metal is extruded into continuous rectangular blocks called blooms.
Blooms are reheated in a furnace to 1250 degrees Celsius for further shaping.
A Rolling Mill elongates each bloom, more than quadrupling its length.
Scrap from the cutting process is recycled back to the scrap yard.
Rails are cooled to about 500 degrees Celsius before being stacked.
Electromagnets are used to stack rails in a holding box for further cooling.
Rails cool to about 90 degrees Celsius before being removed from the holding box.
Rails are straightened through a vertical flexing process after cooling.
Inspectors examine the rails using mirrors to check both the top and bottom surfaces.
Rails are cut to the specific length ordered by the railway, often the standard length of 25 meters.
Transcripts
foreign
the train Wheels Rim runs on the inside
of the rail to keep the Train on the
track
this plant makes train rails entirely
out of recycled steel from scrap yards
food cans and recycled pieces from the
rail making process itself
electromagnets pick up the scrap
and dump it in a charging bucket
a truck hauls the bucket inside where a
crane drops the contents into a furnace
an intense electric current melts the
scrap steel at 1650 degrees Celsius
it then flows into a large bricklined
Ladle where they add carbon manganese
and other elements to make the steel
more durable
the alloy then runs down a ceramic tube
that Shields it from exposure to oxygen
which would ruin the metal
from there the molten metal flows into
molds which extrude it into continuous
rectangular blocks called blooms
a crane then transfers the blooms to a
furnace which over the next five to
seven hours reheats them to 1250 degrees
Celsius
this softens the steel for further
shaping
then the reheated blooms enter a machine
called a Rolling Mill which elongates
each bloom more than quadrupling its
length
next a saw slices off about 30
centimeters to square off the ends
the cut off pieces go back to the scrap
yard
meanwhile the rails are laid out until
they cool to about 500 degrees Celsius
then an electromagnet piles them in a
holding box where they sit for 10 hours
until they cool to about 90 degrees
Celsius
when they come out of the box they run
through two sets of rollers
the first set flexes the rail vertically
this flexing process straightens out the
rails which curved slightly due to all
that heating shaping and Cooling
next each rail passes over a mirror
enabling inspectors to examine the
bottom as well as the top
finally a saw cuts the rails to whatever
size the railway ordered most often the
standard length of 25 meters
関連動画をさらに表示
Process for producing steel coils and other products from steel coils
How It's Made Pringles
Cement Manufacturing
How we can stop the flow of plastic pollution into our oceans? | Tim Niemier | TEDxMeritAcademy
Rolling - Industrial Process - Mechanical
Kimia Industri - Proses Pembuatan Deterjen (Bubuk/ Serbuk)
5.0 / 5 (0 votes)