Are there killed carbon steel pipe-fittings?
Yes. Argon gas welding is often used for killed steel welding to inhibit the oxidation of the steel.
What is the function of a differential pressure transmitter?
Pressure transmitters function by measuring the amount of pressure that is exerted on their sensors. It measures mechanical pressure and converts it to electrical signal.
How calculate capacity of refrigeration compressor?
To calculate the refrigerant charge in a car, you must check its AC service valves under the hood in a car that is turned off using manifold gauges. Attach its red hose to the high-pressure gauge and the blue hose to the low-pressure gauge. Open the pressure valve on both sides. The normal low should be 25 to 45 psi. The normal high should be 225 to 250 psi.
This is known as the Modulus of Elastisity, or Youngs Modulus (in tension/compression) and will be a constant as long as the deformation is in the elastic range.
What is step turning operation on lathe machine?
Actually, there are 2 classifications of turning operations...
It can be classified as External operations and internal operations.
In external operations are:
1. Turning-(including steps, tapers, contours, and chamfers)
2. Facing
3.Grooving
4. Cut-off-(also called parting)
5. Thread cutting-(also called screw cutting)
while in Internal operations are:
1. internal drilling
2. Boring
3.Reaming
4.Tapping-(internal thread cutting)
What is the difference between gate valve and OS and Y valve?
OS and Y stands for Opposed Stem and Yoke.
Why Strength and hardness of material are increased in cold working?
The reason that the hardness increases as the cold working increases is because of defects. Before the reduction, or cold working, the lattice of the material has a virtually defect free, or dislocation free, pattern. The cold working increases the amount of dislocations, and because of this, the material becomes more resistant to additional deformations. This manifests itself, most noticeably, as resistance to plastic deformations.
Microscopically, this explained by the two types of dislocation shifts. Dislocation boundaries can move within the plane of dislocation relatively easily; this is known as a glide. However, when a dislocation boundary is moved up or down, out of the plane of dislocation, it takes much more energy. When a material becomes saturated with dislocations, any new dislocation will inevitably have to shift some dislocation boundaries out of their plane. This is known as a climb. Since climbs require more energy, more force is needed to plastically deform the material, i.e. the material becomes harder. The more dislocations a material has, the more climbs are done to achieve this new dislocation, making it harder to plastically deform a material. So the more cold worked the material is, the more climbs are needed, meaning that more energy is needed to deform the material.
I'm pretty sure this is right
-SMG
How to calculate tonnage in hydraulic press machine?
Hydraulics are typically measured in pounds per square inch, which is a measurement of pressure, or force exerted with respect to area. To calculate the force used, multiply the pressure measurement by the area measurement in inches. This will give you the force in pounds, then convert that to tons.
What is differences between mechanical and hydraulic brakes?
mechanical and hydraulic are two different power transmission medium.
in mechanical brakes solid links or levers are used to achieve the required braking.
in hydraulic brakes there are no links, here the braking is achieved by the hydraulic fluid, the hydraulic system in which the force applied at the brake pedal is multiplied several times to achieve the requied braking.
What are the advantages of alternative fuels used in automobiles?
The primary advantage to alternative fuels such as biodiesel in automobiles is to lower harmful emissions into the atmosphere in the hopes of off-setting further damage to the ozone. Currently the biodiesel of choice, at least in the United States, is ethanol derived from corn. There are two affective faults with the current system and crop of choice, first is the amount of ethanol derived from corn is minimal compared to alternative crops such as water based algae. This has a subproblem rooted in that the amount of space necessary to grow the corn to produce sufficient amounts of ethanol is staggering. Secondly, the amount of machinery and vehicles using gasoline or standard diesel in the process of allocating the ethanol from the corn far offsets the benefits of using the ethanol to begin with.
Side note - the performance of vehicles on biodiesel is similar to that of standard diesel.
The design of a Screw Clamp was done in the following steps: Step 1: All the components of a screw clamp assembly under consideration were sketched and labeled separately. The parameters, to be determined analytically, were identified (on the sketches). Dimensions which were found empirically were also identified (on the sketches). Parameters and dimensions including: the screw end angle, the relationship of the set screw, lubricating ducts, plugs and pad dimensions to screw diameter, were estimated empirically. Step 2: The loads on the screw, nut, frame, clamping pad and handle were estimated, as and when each part was designed, one after the other. The service life of each part was visualized. Step 3: The requirements and desired outputs of the screw clamp and each of its parts were projected, as each part was designed, one after the other. Step 4: Materials and processes were chosen tentatively for each part, as and when each part was designed, one after the other. Reasons for each choice were recorded as shown below. Step 5: To quantify the dimensions, design quantities for each part were recorded as shown below. The distortion energy theory was used to determine several sections of the frame on the basis of bending. All dimensions, materials and processes were finalized and shown on the supplied drawing. A bill of materials was also made. The efficiency of the screw was estimated, and included in the specifications of the screw.
Derive an expression for expression for rise of liquid in a capillary tube?
deduce an expression for height of a liquid in capillary tube. also write practical applications of capillary action.
What is the difference between chrome plated and stainless steel?
Chrome plated is using electric plating method to have a layer of chrome plated on top of the metal, (usually iron or steel. ) because of the nature of the chrome it will prevent rusting of the surface of the metal.
Stainless steel is an alloy containing chrome and aluminum and many other traceable amount of metals, different grade of stainless has different ratio of contains and give different characteristics to the steel.
What is the system used to describe wire sizes?
In North America the system used is AWG. American Wire Gauge.
304 stainless is a standard metal used in kitchens and laboratories. Power plants and industrial settings more commonly use 305, 316 and 321 stainless steel. 304SS is used to make knives, utensils, labware, appliances and tables, it is easily cleanable and holds a shine well. 304SS is also known as 18/8 stainless having an 18% chromium content and an 8% nickel content.
What is the diameter of submerged arc furnace?
Submerged Arc Furnace is also called smelting furnace. The furnace is called submerged Arc because Soderberg(Carbon) Electrodes are , buried inside the charge mix. Though Arcing is there but can not be seen. This Furnace is used for producing Ferro Alloys,Pig iron,Silicon metal, Calcium Carbide, Ferro Silicon,Ferro Chrome, Silico Manganese
What is the science definition of stress force?
Shear force is a load (pounds, or newtons) in plane of the object which produces shear stress ( pounds per sq inch, or Pascals).
Shear force is related to shear stress as
STRESS = FORCE/AREA
A metallergist is a person who studies metallurgy.Metallergy is a domain of materials science that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. It is also the technology of metals: the way in which science is applied to their practical use. Metallurgy is commonly used in the craft of metalworking.
What is the ultimate shear strength of stainless steel 316 n 304 n 302?
It depends on how it is worked, but a minimum strength in tension is 80,000psi. In shear, it is 0.577 times the tension strength, or shear strength minimum = 46,000 psi
What is the difference between a metal lathe and a wooden lathe?
Milling in a lathe can be two things:
How does an automatic reciprocating of double acting cylinder circuit work in hydraulics?
presure of water from which it is posible other wise by michanism
Would you use a fixed pulley or movable pulley to lift a heavy load?
Fixed if it weighed as less than you, but a movable pulley wouldn't be helpful here. You'd be best with a pulley with multiple supporting ropes.
What are the common uses of high speed steel?
The addition of cobalt increases heat resistance.It is alloyed in M35 steel grade of HSS.