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Manufacturing
Manufacturing is the use of tools, machines and labor to produce goods for sale or use. It may refer to various human activities ranging from handicraft to high tech, but is most commonly applied to industrial production where raw materials are transformed into finished goods.
8,256 Questions
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What is the process of manufacturing turkey red oil?
The best way of manufacturing turkey red oil is as follows.
accurately weigh and transfer 800kg of castor oil in stainless steel with water jocketed and medium stirrer vessel/reactor arrangement, slowly add continuously145kg of concentrated sulfuric acid in 3hrs if required add 240gm of stearic acid for dispersion of acid initial stage of acid addition, and continue the stirring up to 4hrs. to this add 600kg of water and 0.8kg of EDTA disodium salt, stirr well and transfer the mass in to a V type separator, allow it to separate the spent acid for 24hours.
after 24hrs decant the spent acid and weigh it accurately and keep it aside aprox630-650kg.
transfer the un neutalized mass in to a suitable mixer to this add 200kg of water and 15-20kg of triethanolamine and mixture of 65kg NAOH+200kg water slowly with continuous stirring. the purity of the TRO did with this process is aprox58-59%.
What are the major classifications of basic manufacturing?
classification of basic manufacturing processes.
Will galvanized steel rust if you grind it?
Yes , eventually it does rust but it takes a long time, in normal weather conditions, if you subject it to extreme conditions, it does not last as long, but still lasts quite a bit longer than normal steel.
So eventually you get rust; how can you deal with that and not get it spreading?
What four thing can be made from alloy?
Many many things can be made from alloy. Steel is an alloy. How many things can you think of made from steel?
Acrylic or Plexiglass is bent in different ways-- one way is -- it is molded during fabrication-- and the other way is you can bend it yourself. If you have a flat piece and would like to bend it you can use a hot air blower or you can purchase an electric strap heater. Heat bars are also sold as well as heat adjusting power boxes to be used with the heat bars. With this heat bar you simply place the plastic with your marked bend line on the heat bar and plug it in-- this heat process takes just about 5 minutes for the plastic to get soft enough for you to bend the rest by hand. This is a method that requires you to use angle jigs with clamps to hold the plastic until it cools down and hardens to your desired angle. You can make your own plastic bender heating table
or you can just buy heat bars.
You can use a hot air gun--or you can use a strap heater.--
set your piece of plexiglass on the table with your bend line on the edge of the table. - -place the strap heater on your marked / drawn bend line and plug in the heater or you can use the hot air blower guiding it from side to side and the until the acrylic bends on its own as it heats up. I build acrylic countertop candy display units for neighborhood grocery stores-- so ask me how I know
What I do is I add an extra 1/4 inch to my piece of plastic so that when it bends i can use the table saw to cut the bend crease off of the side and I use a torch to re-glaze the edge of the plastic for a smoothe glass like edge.
For a tutorial on bending acrylic Google Acrylic Bending for direct links to acrylic bending tutorials-- or go to Http://hackaday.com
Where are natural glucocorticoids produced?
Natural glucocorticoids are produced in the adrenal glands located immediately above the kidneys.
Why is weld fixture called weld jig?
A welding jig is a device designed to allow something being welded to be held such that the intended shape is made and can be repeatedly made using the jig. That way each unit coming out of the jig has the same dimensions.
Why are trees used to make metal?
Generally it is put there to keep animals from climbing up the trees. Squirrels for example, will eat all of the nuts and fruit out of a tree. If you put up sheets of metal about 4 feet off the ground, it will keep them from being able to climb up.
Yes, Mild steel has a property of malleability, it completely depends on its chemistry. If you have an option to choose the chemical composition, you must choose lower carbon, Manganese content.
How much does 1 inch thick 96 x 120 inches steel weigh?
in carbon steel it will weigh 3,267.2 lbs.
For weight of we have to know:-
1. volume (in cubic centimeter)
2. density
so now
1 inch = 2.54 cm
96 inch = 96*2.54=243.84
120 inch = 120*2.54=304.8
so
volume=(2.54*243.84*304.8)=188779 cubic cm
density = 7.8g/cm3 (varies based on alloying element from 7.8 to 8.05)
now mass= density*volume
m= 7.8*176980.29=1472476.022 gram= 1472.5 kg=3246.25 lbs (depends on density)
What is the difference between mechanical engineer and manufacturing engineer?
Manufacturing is a specific branch of mechanical engineering that deals with manufacturing processes.
What is the density of Carbon steel SA 516 Gr. 70?
The density of mild steel is 7,861.093 kg/m³ (490.751 lb/ft³ , 0.2839 lb/in³)
http://en.wikipedia.org/wiki/Carbon_steel
Compare with 0.28333 lb/in³
Pressure Vessel Handbook 13 Ed.
by Eugene F. Megyesy
pg 388
ISBN-10: 091445823X
ISBN-13: 9780914458234
How do you tell the difference between austentic steel and stainless steel?
Austenitic is not a type of steel, it is a description for steel and many stainless steels can be austenitic. Austenitic steels means that they contain 7% or more chromium or nickel as their major alloy elements and they have the highest corrosion resistance but are not heat treatable.
What is EN equivalent of St 52-3?
DIN 1.0570 ST 52-3 is a type of steel. These can be carbon steel or other types of steel. A material data sheet will help figure out the equivalent.
What does the 18-10 designation mean on stainless steel?
It means that the it has 18% Chromium and 10% Nickel.
Percentage of carbon in stainless steel?
This depends on the type of stainless steel. I've seen stainless steel 303 with <=0.15% carbon, which I think is typical.
If you have a specific type of stainless steel that you want to know the carbon content for you can get a pretty good idea by using matweb.com
What constitute dangerous occurrences and hazardous malfunctions?
Dangerous occurrences are those conditions or actions which have the potential to cause hazardous malfunctions. Hazardous malfunctions are failures of objects or assemblies which potentially may cause injury to operators or bystanders.
